Wastewater treatment device

Abstract

The present application relates to wastewater treatment technical field, specifically to a kind of wastewater treatment device.The wastewater treatment device includes the tank body with stirring chamber and feeding component, the top of tank body is provided with mounting hole, feeding component is located at mounting hole, feeding component is connected to tank body by connecting structure, feeding component is equipped with accommodating groove, the capacity of accommodating groove is same with the required amount of medicament particles when wastewater fills stirring chamber, the bottom of feeding component is equipped with multiple liquid inlet holes;Wherein, when accommodating groove is filled with medicament particles, connecting structure makes feeding component drop from initial position to working position due to the increase of pressure, so that wastewater in stirring chamber can enter accommodating groove from liquid inlet hole to dissolve medicament particles;Connecting structure makes feeding component return to initial position from working position due to the decrease of pressure.The purpose of the present application is to reduce medicament waste and reduce wastewater treatment cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment, in particular to a wastewater treatment device. BACKGROUND

[0002] There are two ways to add chemicals to the desulfurization and denitrification wastewater discharged by a thermal power plant for pretreatment: one is to directly add a certain amount of chemical particles to the wastewater treatment device by manual operation, and the wastewater is discharged to a sedimentation tank for sedimentation after sufficient reaction. This method is relatively rough and cannot accurately control the amount of chemical particles added. In order to avoid insufficient addition of chemical particles, the actual amount of chemical particles added by the on-site personnel is usually intentionally more than the required amount, so that the actual amount of chemical particles added is much more than the required amount, resulting in waste of chemicals. The other is to add a predetermined amount of chemical particles (such as a precipitant or a flocculant) to form a chemical solution in a chemical adding device according to a predetermined ratio by manual operation, and then the chemical solution is sent into the wastewater treatment device containing the desulfurization and denitrification wastewater by a chemical adding pump, and finally the wastewater treatment device discharges the reacted wastewater to the sedimentation tank for sedimentation. This method does not cause waste of chemicals, but the use of the chemical adding device increases the equipment cost and the investment in land area. SUMMARY

[0003] The purpose of the present application is to reduce the waste of chemicals and reduce the cost of wastewater treatment.

[0004] In order to achieve the above purpose, the present application provides a wastewater treatment device, which comprises a tank body with a stirring chamber and a feeding component, the top of the tank body is provided with a mounting hole, and the feeding component is located at the mounting hole. The feeding component is connected to the tank body by a connecting structure capable of vertically lifting the feeding component. The feeding component is provided with a containing groove with an upward opening, and the capacity of the containing groove is the same as the required amount of chemical particles when the wastewater fills the stirring chamber. The bottom of the feeding component is provided with a plurality of liquid inlet holes for connecting the containing groove and the stirring chamber. When the containing groove is filled with chemical particles, the connecting structure lowers the feeding component from the initial position to the working position due to the increase in pressure, so that the wastewater in the stirring chamber can enter the containing groove through the liquid inlet holes to dissolve the chemical particles. The connecting structure returns the feeding component from the working position to the initial position due to the decrease in pressure.

[0005] In some embodiments, the connecting structure comprises two fixing plates oppositely mounted on the two sides of the installation hole in the radial direction, a vertically extending slide channel is arranged in the fixing plate, a magnetic member and a sliding block that are attracted to each other by magnetic force are arranged in the slide channel, the magnetic member is fixed above the sliding block, the sliding block is arranged to be able to slide below the magnetic member; a vertically extending long hole is arranged on the side of the fixing plate facing the center of the installation hole, the long hole is in communication with the slide channel, the sliding block is connected with the feeding component through the long hole; and / or a sterilization lamp is arranged in the tank body, the sterilization lamp is located above the waste water liquid level in the tank body; and / or the waste water treatment device further comprises a stirring structure, the stirring structure comprises a driving motor and a lengthwise vertically extending stirring shaft, the driving motor is mounted on the top of the tank body, the stirring shaft is rotatably mounted in the stirring chamber, the driving motor can drive the stirring shaft to rotate in the circumferential direction, a plurality of circumferentially spaced stirring components are arranged on the stirring shaft.

[0006] In some embodiments, the connecting structure further comprises an outer pipe body, the outer pipe body is vertically arranged in the installation hole, the outer pipe body has a top end opening in communication with the accommodating groove and used for feeding the medicament particles, the outer pipe body has a bottom end opening in communication with the stirring chamber and used for the downward extension of the feeding component, and the two fixing plates are oppositely arranged on the inner wall of the outer pipe body.

[0007] In some embodiments, the number of the feeding components and the connecting structures is two respectively, each feeding component is connected with the tank body through one connecting structure; the bottom end of the slide channel of the connecting structure is provided with a contact sensor, one of the contact sensors of the connecting structures is electrically connected with the driving motor, and the other contact sensor is electrically connected with the sterilization lamp; when the feeding component moves downward to the working position, the sliding block contacts the contact sensor, and the driving motor and / or the sterilization lamp corresponding to the contact sensor are turned on.

[0008] In some embodiments, the stirring component comprises a vertically extending stirring plate and a horizontally extending connecting rod, one end of the connecting rod is connected with the stirring shaft, and the other end of the connecting rod is connected with the stirring plate.

[0009] In some embodiments, the stirring component comprises a plurality of connecting rods, and the plurality of connecting rods are vertically and spacedly arranged.

[0010] In some embodiments, the tank body further comprises a buffer chamber located below the stirring chamber, the stirring chamber and the buffer chamber are separated by a partition plate, the partition plate is provided with an electromagnetic valve capable of communicating or blocking the stirring chamber and the buffer chamber; the tank body is further provided with a liquid discharge pipe in communication with the buffer chamber; when the electromagnetic valve is opened, the waste water can flow to the liquid discharge pipe along the stirring chamber, the electromagnetic valve and the buffer chamber in sequence.

[0011] In some embodiments, the buffer chamber is further provided with a buffer device, the buffer device is provided with a buffer groove opening upward, the wastewater in the stirring chamber can flow into the buffer groove through the electromagnetic valve; the liquid inlet port of the liquid discharge pipe is arranged at the side wall of the tank body; the side wall of the buffer device is provided with a liquid outlet port communicating with the buffer groove, and a plurality of dampers capable of vertical lifting are arranged between the buffer device and the bottom wall of the tank body; when the buffer device does not contain wastewater, the liquid outlet port of the buffer device is located above the liquid inlet port of the liquid discharge pipe; when the buffer device contains a preset amount of wastewater, the dampers are lowered under pressure to make the liquid outlet port of the buffer groove communicate with the liquid inlet port of the liquid discharge pipe.

[0012] In some embodiments, the tank body is further provided with a water inlet pipe communicating with the stirring chamber.

[0013] In some embodiments, the wastewater treatment device further comprises a controller capable of controlling the driving motor, the electromagnetic valve and the germicidal lamp to start or stop respectively.

[0014] The technical scheme of the present application has the following beneficial effects:

[0015] After the feeding component is filled with medicament particles, the connecting structure is lowered from the initial position to the working position due to the increase of the pressure, so that the wastewater in the stirring chamber can enter the containing groove from the liquid inlet hole to dissolve the medicament particles; when the medicament particles in the containing groove are completely dissolved and diffused into the wastewater in the stirring chamber, the connecting structure is returned upward from the working position to the initial position due to the decrease of the pressure. Since the capacity of the containing groove of the feeding component is equal to the required amount of medicament particles when the wastewater fills the stirring chamber, the medicament particles can be guaranteed to be applied in sufficient amount every time the containing groove is filled, which helps the on-site personnel to accurately grasp the application amount and helps to avoid waste of medicament particles. Moreover, the structure of the feeding component in the present application is simpler, the equipment investment is smaller, and the wastewater treatment cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the wastewater treatment device in an embodiment of the present application;

[0017] Figure 2 is a vertical sectional view of the wastewater treatment device in an embodiment of the present application;

[0018] Figure 3 is a vertical sectional view of the connecting structure in an embodiment of the present application.

[0019] REFERENCE SIGNS

[0020] 1, tank; 11, stirring chamber; 12, driving motor; 13, stirring shaft; 14, connecting rod; 15, stirring plate; 16, buffer chamber; 17, partition; 171, electromagnetic valve; 18, liquid discharge pipe; 19, water inlet pipe; 2, feeding component; 21, containing groove; 22, liquid inlet hole; 3, connecting structure; 31, outer pipe body; 32, fixed plate; 33, slide; 34, magnetic piece; 35, sliding block; 36, contact sensor; 4, buffer device; 41, buffer groove; 42, damper; 43, extension spring; 5, controller; 6, sterilization lamp. DETAILED DESCRIPTION

[0021] The features and exemplary embodiments of the various aspects of the present application will be described in detail below with reference to the drawings. The following detailed description is merely intended to explain the present application, and is not intended to limit the present application. The present application can be implemented without some of the specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application through showing examples of the present application.

[0022] As shown in Figure 1 and Figure 2 The present application provides a wastewater treatment device, which comprises a tank 1 having a stirring chamber 11 and a feeding component 2, the top of the tank 1 is provided with a mounting hole, and the feeding component 2 is located at the mounting hole. The feeding component 2 is connected to the tank 1 through a connecting structure 3 which can vertically lift the feeding component 2. The feeding component 2 is provided with a containing groove 21 which is open upward, and the capacity of the containing groove 21 is the same as the required amount of medicament particles when the wastewater fills the stirring chamber 11. The bottom of the feeding component 2 is provided with a plurality of liquid inlet holes 22 which can communicate the containing groove 21 with the stirring chamber 11. When the containing groove 21 is filled with medicament particles, the connecting structure 3 lowers the feeding component 2 from the initial position to the working position due to the increase of the pressure, so that the wastewater in the stirring chamber 11 can enter the containing groove 21 through the liquid inlet holes 22 to dissolve the medicament particles. The connecting structure 3 returns the feeding component 2 from the working position to the initial position upward due to the decrease of the pressure.

[0023] Specifically, the feeding component 2 can be a cylindrical hopper. The capacity of the stirring chamber 11 is fixed, so the amount of wastewater delivered to the wastewater treatment device each time is constant, and the percentage of various pollutants in the wastewater is generally stable. Therefore, the required amount of medicament particles is the same each time the wastewater fills the stirring chamber 11. The containing groove 21 has a predetermined capacity, and the capacity of the containing groove 21 is the same as the required amount of medicament particles when the wastewater fills the stirring chamber 11, so that the feeding component 2 can accurately apply the amount of medicament. Those skilled in the art can understand that the hole diameter of the liquid inlet hole 22 can be equal to or slightly smaller than the particle size of the medicament particles, so as to prevent the medicament particles from leaking out, and to allow the wastewater to enter the containing groove 21 to dissolve the medicament particles. Of course, the medicament particles can be precipitator particles (such as calcium hydroxide particles or sodium hydroxide particles, etc.) or flocculants (such as polyacrylamide particles or polyaluminum chloride particles, etc.).

[0024] Specifically, when the containing groove 21 is not filled with medicament particles, the feeding component 2 is in the initial position, and the support of the connecting structure 3 to the feeding component 2 and the self-gravity of the feeding component 2 are in balance; when the containing groove 21 is filled with medicament particles, the total weight of the feeding component 2 increases, so the pressure of the feeding component 2 on the connecting structure 3 increases, the connecting structure 3 lowers the feeding component 2, and the feeding component 2 can move from the initial position to the working position. When the feeding component 2 is in the working position, the bottom end of the feeding component 2 is immersed in the wastewater in the tank body 1, the wastewater flows into the containing groove 21 from the liquid inlet hole 22 to dissolve the medicament particles, and the dissolved medicament gradually diffuses into the wastewater. After the medicament diffuses, the containing groove 21 is no longer filled with medicament, the total weight of the feeding component 2 decreases, the pressure of the feeding component 2 on the connecting structure 3 decreases, the connecting structure 3 raises the feeding component 2, and the feeding component 2 can return to the initial position.

[0025] In this embodiment, after the feeding component 2 is filled with medicament particles, the connecting structure 3 lowers the feeding component 2 from the initial position to the working position due to the increase in pressure, so that the wastewater in the stirring chamber 11 can enter the containing groove 21 from the liquid inlet hole 22 to dissolve the medicament particles; when the medicament particles in the containing groove 21 are completely dissolved and diffused into the wastewater in the stirring chamber 11, the connecting structure 3 raises the feeding component 2 from the working position to the initial position due to the decrease in pressure. Since the capacity of the containing groove 21 of the feeding component 2 is equal to the required amount of medicament particles when the wastewater fills the stirring chamber 11, filling the containing groove 21 each time can ensure that the medicament particles are applied in sufficient amount, which is convenient for the on-site personnel to accurately grasp the amount of application, and helps to avoid waste of medicament particles. Moreover, the operation of applying medicament particles is simple, without the need for manual weighing and then applying, or without the need for batch addition, which helps to reduce the work burden of on-site personnel and improve production efficiency.

[0026] In addition, the traditional dosing device includes a dosing pump, a medicine bin, a medicine delivery pipe, an electronic valve and a sensor, and has high equipment cost and requires a certain floor area. The structure of the feeding component 2 in the present application is simpler and requires less equipment investment, which helps to reduce the cost of wastewater treatment. Moreover, compared with manual dosing, the automatic dosing level and the accurate dosing level of the wastewater treatment device in the present application are higher.

[0027] As shown in Figure 3 In some embodiments of the present application, the connecting structure 3 includes two fixed plates 32, which are oppositely installed on the two sides of the radial direction of the mounting hole. The fixed plate 32 is provided with a vertically extending slide 33, and the slide 33 is provided with a magnetic member 34 and a sliding block 35 which are magnetically attracted to each other. The magnetic member 34 is fixed above the sliding block 35, and the sliding block 35 is arranged to be able to slide below the magnetic member 34. The side of the fixed plate 32 facing the center of the mounting hole is provided with a vertically extending long hole, and the long hole is in communication with the slide 33. The sliding block 35 is connected with the feeding component 2 through the long hole.

[0028] Specifically, when the containing groove 21 of the feeding component 2 is not filled with medicament particles, the magnetic member 34 and the sliding block 35 are connected by magnetic force, that is, the top end of the sliding block 35 is adsorbed on the bottom end of the magnetic member 34. At this time, the magnetic force between the magnetic member 34 and the sliding block 35 is greater than the sum of the weight of the feeding component 2 and the sliding block 35, so the feeding component 2 can be kept in the initial position. When the containing groove 21 of the feeding component 2 is filled with medicament particles, the sum of the weight of the medicament particles, the feeding component 2 and the sliding block 35 is greater than the magnetic force between the magnetic member 34 and the sliding block 35, so the sliding block 35 is disconnected from the magnetic member 34, and then the medicament particles, the feeding component 2 and the sliding block 35 move downward. When the bottom end of the sliding block 35 abuts against the bottom end of the slide 33, the sliding block 35 is supported by the bottom end of the slide 33, at this time the feeding component 2 no longer descends, and the feeding component 2 is located in the working position. After the medicament particles in the containing groove 21 are completely dissolved by the wastewater and the medicament particles are diffused into the wastewater, the total weight of the feeding component 2 is reduced, the attraction between the magnetic member 34 and the sliding block 35 is greater than the sum of the weight of the feeding component 2 and the sliding block 35, so the magnetic member 34 attracts the sliding block 35 to move upward until the top end of the sliding block 35 contacts the bottom end of the magnetic member 34, and then the feeding component 2 moves upward to the initial position.

[0029] In some embodiments, a spring is arranged at the bottom end of the slide 33. When the feeding component 2 is in the working position, the distance between the slide 35 and the magnetic member 34 is the farthest, and the magnetic force therebetween is the smallest. However, under the gravity of the medicament particles, the feeding component 2 and the slide 35, the slide 35 presses the spring downward, so that the spring is compressed. When the medicament particles are dissolved and diffused into the wastewater, the pressure on the spring decreases, and the spring pushes the slide 35 upward in the process of restoring the deformation, which helps the slide 35 move upward, and in turn helps the feeding component 2 return to the initial position.

[0030] In some embodiments, the connecting structure 3 can also be other structures, and the present application does not make any limitation. For example, the connecting structure 3 comprises a vertically extending fixed tube which is installed in the mounting hole, and two oppositely arranged sliding grooves are arranged on the inner wall of the fixed tube and vertically extend; the openings of the sliding grooves face the center of the fixed tube. A first spring member and a second spring member are arranged in the sliding grooves, the top end of the first spring member is connected with the top end of the sliding groove, and the bottom end of the second spring member is connected with the bottom end of the sliding groove. The top of the feeding component 2 is provided with two connecting blocks which are respectively located in the two sliding grooves, and the bottom end of the first spring member and the top end of the second spring member are respectively connected with the connecting blocks. When the medicament particles fill the accommodating groove 21, the feeding component 2 moves downward due to the increase of gravity, the elongation of the first spring member increases, and the compression of the second spring member increases. When the medicament particles are dissolved and diffused, the feeding component 2 moves upward due to the decrease of gravity, the elongation of the first spring member decreases, and the compression of the second spring member decreases.

[0031] As shown in Figure 3 In some embodiments of the present application, the tank 1 is provided with a sterilization lamp 6 which is located above the liquid level of the wastewater in the tank 1.

[0032] Specifically, the sterilization lamp 6 can emit light rays to kill bacteria, which helps purify the wastewater. Of course, the sterilization lamp 6 is a common device in the art, and the structure and principle thereof will not be described herein.

[0033] As shown in Figure 3 In some embodiments of the present application, the wastewater treatment device further comprises a stirring structure which comprises a driving motor 12 and a stirring shaft 13 vertically extending in the length direction, the driving motor 12 is installed at the top of the tank 1, the stirring shaft 13 is rotatably installed in the stirring chamber 11, the driving motor 12 can drive the stirring shaft 13 to rotate in the circumferential direction, and a plurality of stirring components are circumferentially and spacedly arranged on the stirring shaft 13.

[0034] Specifically, the driving motor 12 can drive the stirring shaft 13 to rotate, and the rotation of the stirring shaft 13 can drive the stirring components to stir the wastewater, thereby accelerating the dissolution and diffusion of the medicament particles, so that the medicament particles can be quickly and uniformly diffused into the wastewater.

[0035] AsFigure 1 and Figure 2 As shown, the connecting structure 3 also includes an outer tube 31, which is vertically inserted into the mounting hole. The outer tube 31 has a top opening that communicates with the receiving groove 21 and is used for feeding the drug particles. The outer tube 31 also has a bottom opening that communicates with the stirring chamber 11 and is used for the feeding component 2 to extend downward. Two fixing plates 32 are arranged opposite each other on the inner wall of the outer tube 31.

[0036] like Figure 1 and Figure 2 As shown, there are two feeding components 2 and two connecting structures 3. Each feeding component 2 is connected to the tank 1 through a connecting structure 3. The bottom end of the slide 33 of the connecting structure 3 is equipped with a contact sensor 36. One of the contact sensors 36 of the connecting structure 3 is electrically connected to the drive motor 12, and the other contact sensor 36 of the connecting structure 3 is electrically connected to the sterilizing lamp 6. When the feeding component 2 moves downward to the working position, the slider 35 contacts the contact sensor 36, and the drive motor 12 and / or the sterilizing lamp 6 corresponding to the contact sensor 36 are turned on.

[0037] Specifically, the two feeding components 2 can be used to feed different agents, such as precipitants and flocculants. For example, when precipitant is added to one of the receiving tanks 21, the slider 35 moves downward and contacts the contact sensor 36. The contact sensor 36 then sends a drive signal to the drive motor 12, which drives the stirring shaft 13 to rotate. Similarly, when flocculant is added to the other receiving tank 21, the slider 35 moves downward and contacts the contact sensor 36. The contact sensor 36 then sends an on signal to the germicidal lamp 6, which then turns on. It should be noted that the contact sensor 36 is a commonly used sensor in the art, and its structure and principle will not be described in detail here.

[0038] like Figure 2 As shown, the stirring component includes a stirring plate 15 extending vertically and a connecting rod 14 extending horizontally. One end of the connecting rod 14 is connected to the stirring shaft 13, and the other end of the connecting rod 14 is connected to the stirring plate 15.

[0039] Specifically, the connecting rod 14 can expand the stirring range of the stirring plate 15, and can also make the stirring plate 15 firmly connected to the stirring shaft 13.

[0040] like Figure 1 and Figure 2 As shown, the stirring component includes multiple connecting rods 14, which are arranged at intervals along the vertical direction.

[0041] like Figure 2As shown, the tank body 1 further has a buffer chamber 16 below the stirring chamber 11, the stirring chamber 11 and the buffer chamber 16 are separated by a partition plate 17, the partition plate 17 is provided with an electromagnetic valve 171 capable of communicating or blocking between the stirring chamber 11 and the buffer chamber 16; the tank body 1 is further provided with a liquid discharge pipe 18 communicating with the buffer chamber 16. Wherein, when the electromagnetic valve 171 is opened, the wastewater can flow to the liquid discharge pipe 18 along the stirring chamber 11, the electromagnetic valve 171 and the buffer chamber 16 in turn.

[0042] Specifically, the stirring chamber 11 and the buffer chamber 16 are isolated from each other, and only when the electromagnetic valve 171 on the partition plate 17 is opened, the stirring chamber 11 and the buffer chamber 16 can communicate. After the wastewater is stirred uniformly, the electromagnetic valve 171 is opened, the wastewater in the stirring chamber 11 flows downward into the buffer chamber 16, and then the wastewater flows from the buffer chamber 16 to the liquid discharge pipe 18. The wastewater flows out of the buffer chamber 16, which helps to maintain a stable flow state of the wastewater. The electromagnetic valve 171 can be set to open or close at a fixed time, or can be set to open or close according to the instructions of the controller 5.

[0043] As shown in Figure 2 The buffer chamber 16 is further provided with a buffer device 4, the buffer device 4 is provided with a buffer groove 41 with an upward opening, the wastewater in the stirring chamber 11 can flow into the buffer groove 41 through the electromagnetic valve 171; the liquid inlet port of the liquid discharge pipe 18 is provided through the side wall of the tank body 1; the side wall of the buffer device 4 is provided with a liquid outlet port communicating with the buffer groove 41, and a plurality of dampers 42 capable of vertical lifting are provided between the buffer device 4 and the bottom wall of the tank body 1. Wherein, when the buffer device 4 does not contain wastewater, the liquid outlet port of the buffer device 4 is located above the liquid inlet port of the liquid discharge pipe 18; when the buffer device 4 contains a predetermined amount of wastewater, the dampers 42 are lowered under pressure to make the liquid outlet port of the buffer groove 41 communicate with the liquid inlet port of the liquid discharge pipe 18.

[0044] Specifically, when the buffer groove 41 of the buffer device 4 does not contain wastewater, the liquid outlet port and the liquid inlet port are staggered with each other, and the liquid outlet port is located above the liquid inlet port. When the electromagnetic valve 171 is opened, the wastewater in the stirring chamber 11 flows downward into the buffer groove 41. When the buffer groove 41 is filled with wastewater, the buffer groove 41 is lowered to the lowest position through the dampers 42, at this time the liquid outlet port and the liquid inlet port are communicated, and the wastewater can flow from the buffer groove 41 into the liquid discharge pipe 18. The buffer device 4 can help to delay the flow of wastewater into the liquid discharge pipe 18, and further help the medicament to diffuse fully.

[0045] In some embodiments, the dampers 42 are sleeved with telescopic springs 43. When the wastewater in the buffer groove 41 is completely discharged, the compressed telescopic springs 43 push the buffer device 4, which helps to speed up the rising of the buffer device 4.

[0046] In some embodiments, only the plurality of telescopic springs 43 can be arranged between the buffer device 4 and the bottom wall of the tank body 1, without the damper 42, as long as the lifting of the buffer device 4 can be achieved.

[0047] As shown in Figure 1 and Figure 2 The tank body 1 is further provided with a water inlet pipe 19 communicating with the stirring chamber 11.

[0048] Specifically, the wastewater enters the stirring chamber 11 through the water inlet pipe 19. The water inlet pipe 19 is located above the liquid outlet pipe 18. The water inlet end of the water inlet pipe 19 can be higher than the water outlet end to avoid backflow of the wastewater.

[0049] As shown in Figure 1 The wastewater treatment device further comprises a controller 5, which can control the driving motor 12, the electromagnetic valve 171 and the sterilization lamp 6 to start or stop, respectively.

[0050] Specifically, the controller 5 can control at least the above-mentioned electronic devices. Of course, the wastewater treatment device can also be provided with other electronic devices, and the controller 5 can also control the start and stop of these electronic devices. The controller 5 can realize the automatic operation of the wastewater treatment device, which helps to reduce manual labor.

[0051] The principles and implementation modes of the present application are described by using specific examples in this paper, and the above examples are only used to help understand the method of the present application and its core idea. The above is only the preferred embodiment of the present application. It should be pointed out that due to the limitation of language expression, there are infinite specific structures objectively. For ordinary skilled persons in the technical field, without departing from the principles of the present application, some improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate way; these improvements, refinements, changes or combinations, or the direct application of the concepts and technical solutions of the present application to other occasions without improvement, shall be regarded as the protection scope of the present application.

Claims

1. A wastewater treatment device, characterized in that, The device includes a tank (1) with a stirring chamber (11) and a feeding component (2). The top of the tank (1) has an installation hole, and the feeding component (2) is located at the installation hole. The feeding component (2) is connected to the tank (1) through a connecting structure (3) that allows it to be raised and lowered vertically. The feeding component (2) has an upward-opening receiving trough (21). The capacity of the receiving trough (21) is the same as the amount of reagent particles required when the wastewater fills the stirring chamber (11). The bottom of the feeding component (2) has multiple liquid inlet holes (22) that connect the receiving trough (21) to the stirring chamber (11). When the container (21) is filled with drug particles, the connecting structure (3) causes the feeding component (2) to descend from its initial position to its working position due to increased pressure, so that the wastewater in the stirring chamber (11) can enter the container (21) through the inlet hole (22) to dissolve the drug particles; the connecting structure (3) causes the feeding component (2) to return from its working position to its initial position due to decreased pressure. The connecting structure (3) includes two fixing plates (32), which are mounted opposite each other on the radial sides of the mounting hole. Each fixing plate (32) has a vertically extending slide rail (33), in which a magnetic element (34) and a slider (35) are magnetically attracted to each other. The magnetic element (34) is fixed above the slider (35), and the slider (35) is configured to slide below the magnetic element (34). A vertically extending elongated hole is provided on one side of the fixing plate (32) facing the center of the mounting hole. The elongated hole is connected to the slide (33), and the slider (35) is connected to the feeding component (2) through the elongated hole; the connecting structure (3) also includes an outer tube (31), which is vertically inserted into the mounting hole. The outer tube (31) has a top opening that is connected to the receiving groove (21) and is used for feeding drug particles. The outer tube (31) has a bottom opening that is connected to the stirring chamber (11) and is used for the feeding component (2) to extend downward. The two fixing plates (32) are arranged opposite to each other on the inner wall of the outer tube (31). The tank (1) also has a buffer chamber (16) located below the stirring chamber (11). The stirring chamber (11) and the buffer chamber (16) are separated by a partition (17). The partition (17) is provided with a solenoid valve (171) that can connect or block the stirring chamber (11) and the buffer chamber (16). The tank (1) is also provided with a drain pipe (18) that communicates with the buffer chamber (16). When the solenoid valve (171) is opened, wastewater can flow sequentially along the stirring chamber (11), the solenoid valve (171), and the buffer chamber (16) to the drain pipe (18). The buffer chamber (16) is also provided with a buffer device (4), which has an upward-opening buffer trough (41). Wastewater in the stirring chamber (11) can flow into the buffer trough (41) through the solenoid valve (171). The inlet port of the drain pipe (18) passes through the side wall of the tank (1). The side wall of the buffer device (4) is provided with an outlet that communicates with the buffer trough (41). Multiple dampers (42) that can be vertically raised and lowered are provided between the buffer device (4) and the bottom wall of the tank (1). When the buffer device (4) does not contain wastewater, the outlet of the buffer device (4) is located above the inlet port of the drain pipe (18). When the buffer device (4) contains a preset amount of wastewater, the damper (42) is pressured down so that the outlet of the buffer trough (41) communicates with the inlet port of the drain pipe (18). After the feeding component is filled with drug particles, the connecting structure lowers the feeding component from the initial position to the working position due to the increased pressure, so that the wastewater in the mixing chamber can enter the receiving tank through the liquid inlet to dissolve the drug particles; when all the drug particles in the receiving tank have dissolved and diffused into the wastewater in the mixing chamber, the connecting structure returns the feeding component from the working position to the initial position due to the decreased pressure.

2. The wastewater treatment device according to claim 1, characterized in that, The tank (1) is equipped with a germicidal lamp (6), which is located above the wastewater level in the tank (1); and / or The wastewater treatment device also includes a stirring structure, which includes a drive motor (12) and a stirring shaft (13) extending vertically in the length direction. The drive motor (12) is installed on the top of the tank (1), and the stirring shaft (13) is rotatably installed in the stirring chamber (11). The drive motor (12) can drive the stirring shaft (13) to rotate circumferentially. The stirring shaft (13) is provided with a plurality of stirring components distributed circumferentially.

3. The wastewater treatment device according to claim 2, characterized in that, The number of feeding components (2) and the number of connecting structures (3) are two, and each feeding component (2) is connected to the tank (1) through a connecting structure (3); the bottom end of the slide (33) of the connecting structure (3) is provided with a contact sensor (36), one of the contact sensors (36) of the connecting structure (3) is electrically connected to the drive motor (12), and the other contact sensor (36) of the connecting structure (3) is electrically connected to the germicidal lamp (6); When the feeding component (2) moves downward to the working position, the slider (35) contacts the contact sensor (36), and the drive motor (12) and / or the sterilizing lamp (6) corresponding to the contact sensor (36) are turned on.

4. The wastewater treatment device according to claim 2, characterized in that, The stirring component includes a stirring plate (15) extending vertically and a connecting rod (14) extending horizontally. One end of the connecting rod (14) is connected to the stirring shaft (13), and the other end of the connecting rod (14) is connected to the stirring plate (15).

5. The wastewater treatment device according to claim 4, characterized in that, The stirring component includes a plurality of connecting rods (14), which are arranged at vertical intervals.

6. The wastewater treatment device according to claim 1, characterized in that, The tank (1) is also provided with a water inlet pipe (19) that communicates with the stirring chamber (11).

7. The wastewater treatment device according to claim 2, characterized in that, The wastewater treatment device also includes a controller (5), which can control the drive motor (12), the solenoid valve (171) and the germicidal lamp (6) to turn on or off respectively.

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