Treatment device for pharmaceutical wastewater

Abstract

The utility model provides a pharmaceutical wastewater treatment device, which relates to the technical field of wastewater treatment and comprises an air floatation tank, a slag scraping assembly and a collecting assembly. The air floatation tank comprises a first side wall, a second side wall, a first end wall, a second end wall and a bottom wall. The slag scraping assembly comprises a slag scraping plate, a first driving part and a second driving part, the first driving part is connected with the slag scraping plate, the second driving part is connected with the slag scraping plate, the slag scraping plate comprises a first plate body and a second plate body, the first plate body is arranged in the vertical direction, and the second plate body is obliquely arranged. The collecting assembly is arranged on one side of the first end wall, and the top surface of the first end wall is higher than the bottom surface of the second plate body; the treatment device for pharmaceutical wastewater comprises a first state and a second state, in the first state, the slag scraping plate is driven by the first driving part to move in the first direction, and the second plate body is separated from the first end wall; and in the second state, the slag scraping plate is driven by the second driving piece to move in the vertical direction, and the second plate body makes contact with the first end wall.

Description

Technical Field

[0001] The present application relates to the technical field of wastewater treatment, and in particular to a treatment device for pharmaceutical wastewater. Background Art

[0002] Pharmaceutical wastewater can generally include chemical pharmaceutical wastewater, biopharmaceutical wastewater, traditional Chinese medicine pharmaceutical wastewater, pesticide pharmaceutical wastewater, animal husbandry pharmaceutical wastewater and mixed reagent pharmaceutical wastewater. Although different types of pharmaceutical wastewater require different treatment methods, most pharmaceutical wastewater will use flotation technology. The principle of the flotation process is to circulate part of the treated wastewater into the dissolved air tank. Under the pressurized air state, the air is supersaturated and dissolved, and then mixed with the raw water added with flocculants at the entrance of the flotation tank. Due to the reduction in pressure, the supersaturated air is released to form tiny bubbles, which quickly attach to the suspended matter and lift it to the surface of the flotation tank, thereby forming a scum layer that is easy to remove.

[0003] In the current flotation process, a scraper mechanism is generally set directly above the flotation tank. The scraper mechanism is driven by a driving device to move along the length direction of the flotation tank to push the scum to one side of the flotation tank and collect it through a set collection device.

[0004] However, the existing flotation process has at least the following two problems:

[0005] First, in the process of the scraping mechanism pushing the scum to one side of the flotation tank, the scum will gather on one side of the scraping mechanism under the push of the scraping mechanism, so that the thickness of the scum gradually increases, and the scum will sink into the flotation tank under the action of gravity, resulting in part of the scum cannot be pushed to one side of the flotation tank by the scraping mechanism, resulting in low scum scraping efficiency.

[0006] Second, since the scum generally floats on the water surface and has a certain thickness, in order to ensure the scraping effect of the scum, the scraping mechanism is generally set to be at least partially below the water surface. However, since the side wall of the flotation tank is generally slightly higher than the water surface, when the scraping mechanism pushes the scum to one side of the flotation tank, the scraping mechanism will not be able to extend out of the flotation tank, so that part of the scum will still remain in the flotation tank, which will also lead to low scum scraping efficiency. Utility Model Content

[0007] In order to solve the technical problems in the related art, the present application provides a treatment device for pharmaceutical wastewater. The treatment device for pharmaceutical wastewater of the present application can effectively scrape off most of the scum at one time, thereby improving the scraping efficiency of the scum.

[0008] In order to achieve the above-mentioned purpose, the technical solution adopted in this application is: a treatment device for pharmaceutical wastewater, comprising:

[0009] The flotation tank comprises a first side wall and a second side wall which are arranged opposite to each other, a first end wall and a second end wall which are arranged opposite to each other, and a bottom wall;

[0010] A scraper assembly, comprising a scraper plate, a first driving member and a second driving member, wherein the first driving member is connected to the scraper plate to drive the scraper plate to move in a first direction, wherein the first direction is a direction from the second end wall to the first end wall, and the second driving member is connected to the scraper plate to drive the scraper plate to move in a vertical direction, wherein the scraper plate comprises a first plate body and a second plate body connected to each other, wherein the first plate body is arranged in a vertical direction, and the second plate body is arranged obliquely toward the first end wall;

[0011] A collecting assembly is arranged on a side of the first end wall away from the second end wall, the top surface of the first end wall is higher than the bottom surface of the second plate body, and the collecting assembly is arranged as a trough structure with an open top;

[0012] The pharmaceutical wastewater treatment device includes a first state and a second state. In the first state, the scraper plate moves along the first direction driven by the first driving member, and the second plate body is separated from the first end wall; in the second state, the scraper plate moves along the vertical direction driven by the second driving member, and the second plate body is in contact with the first end wall.

[0013] Optionally, the first driving member is further used to drive the scraper plate to move along a second direction, and the second direction is a direction from the first end wall to the second end wall;

[0014] The scraper plate further comprises a third plate body, one end of which is connected to both the first plate body and the second plate body, and the third plate body is tilted toward the second end wall so that the scraper plate forms an inverted Y-shaped structure, and the top surface of the second end wall is higher than the bottom surface of the third plate body;

[0015] The collecting components are provided in two, one of the two collecting components is provided on a side of the first end wall away from the second end wall, and the other of the two collecting components is provided on a side of the second end wall away from the first end wall.

[0016] Optionally, the second plate body and the third plate body are symmetrically arranged with respect to the first plate body, and the top surface of the first end wall is flush with the top surface of the second end wall.

[0017] Optionally, the angle A between the first plate body and the second plate body satisfies: 105°≤A≤165°; and / or,

[0018] An included angle B between the first plate body and the third plate body satisfies: 105°≤B≤165°.

[0019] Optionally, the scraper assembly further comprises a mounting block, the first driving member is connected to the mounting block to drive the mounting block to move in the first direction or the second direction, the top surface of the mounting block is inwardly recessed to form a first accommodating cavity, and a second accommodating cavity is formed inside the mounting block;

[0020] The first plate body comprises a plate body and a plug-in block formed on the plate body, wherein the plug-in block is used to be inserted into the first accommodating cavity so that the mounting block and the scraper plate are connected;

[0021] The second driving member includes an inflatable airbag and an inflatable component. The inflatable airbag is arranged in the first accommodating cavity, and the inflatable component is arranged in the second accommodating cavity. The inflatable component is connected to the inflatable airbag to inflate the inflatable airbag.

[0022] Optionally, the first accommodating cavity comprises a first cavity, a second cavity and a third cavity sequentially arranged along the vertical direction, the first cavity is located above the second cavity, the third cavity is located below the second cavity, and the size of the first cavity in the first direction is greater than the size of the third cavity in the first direction;

[0023] Two ends of the second cavity are respectively connected to the first cavity and the third cavity, and a size of the second cavity in the first direction gradually decreases in a direction from the first cavity to the third cavity.

[0024] Optionally, the first driving member includes a motor and a screw, and an output end of the motor is connected to the screw to drive the screw to rotate;

[0025] The mounting block is formed with a threaded through hole that matches the screw rod, and the mounting block is sleeved on the screw rod to form a lead screw nut pair.

[0026] Optionally, the mounting block, the first driving member and the second driving member are respectively provided in two groups, which are respectively provided corresponding to the first side wall and the second side wall;

[0027] The first plate body includes a plate body and two plug-in blocks formed at two ends of the plate body, and the two plug-in blocks are respectively plugged with corresponding mounting blocks.

[0028] Optionally, the flotation tank further comprises four stoppers, two of the four stoppers are relatively arranged on the top surface of the first side wall, and the other two of the four stoppers are relatively arranged on the top surface of the second side wall;

[0029] Two contact sensors are arranged on each of the mounting blocks, and the two contact sensors are arranged on both sides of the mounting block respectively, so that when the second plate moves to contact the first end wall or the second end wall, the contact sensor contacts the stop block;

[0030] The second driving member also includes a control unit, and the control unit is electrically connected to the inflation component and the contact sensor respectively.

[0031] Optionally, the top surfaces of the first end wall and the second end wall are respectively formed as inclined surfaces, the inclination direction of the top surface of the first end wall is the same as the inclination direction of the second plate body, and the inclination direction of the top surface of the second end wall is the same as the inclination direction of the third plate body.

[0032] Beneficial effects:

[0033] 1. Through the above technical solution, on the one hand, since the scraper plate of the present application includes a first plate body arranged in the vertical direction and a second plate body inclined toward the first end wall, in this way, when the scraper plate moves toward the first end wall, the scum will be pushed by the first plate body and supported by the second plate body, so that most of the scum can be supported by the second plate body and will not sink under the action of its own gravity, which is conducive to making most of the scum can be pushed to one side of the flotation tank by the scraper plate at one time, so as to improve the scraping efficiency of the scum.

[0034] On the other hand, since the present application also provides a second driving member capable of driving the scraper plate in a vertical direction, when the scraper plate moves to the second state, the scraper plate can be lifted by the second driving member while abutting against the first end wall, thereby enabling all scum located above the second plate body to be lifted to a position higher than the first end wall, so that most of the scum can be discharged from the flotation tank, thereby further improving the scum scraping efficiency.

[0035] 2. Other beneficial effects or advantages of the present application will be described in detail in conjunction with the specific structure in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor. In addition, it should be understood that the proportional relationship of the various components in the drawings of this specification does not represent the proportional relationship in the actual material selection and design, which is only a schematic diagram of the structure or position, where:

[0037] Figure 1 is a schematic diagram of the three-dimensional structure of a treatment device for pharmaceutical wastewater provided by an exemplary embodiment of the present application;

[0038] Figure 2 yes Figure 1 A magnified schematic diagram of the local structure at C in the middle;

[0039] Figure 3 yes Figure 1 A magnified schematic diagram of the local structure at D in the middle;

[0040] Figure 4 is a schematic diagram of an assembly structure of a scraper plate and a mounting block provided in an exemplary embodiment of the present application;

[0041] Figure 5 yes Figure 4 A magnified schematic diagram of the local structure at E in the middle;

[0042] Figure 6 is a schematic diagram of a three-dimensional structure of a scraper provided by an exemplary embodiment of the present application;

[0043] Figure 7 is a schematic diagram of a partially cutaway structure of a mounting block provided by an exemplary embodiment of the present application from one perspective;

[0044] Figure 8 is a schematic diagram of a partially cutaway structure of a mounting block provided by an exemplary embodiment of the present application from another perspective;

[0045] Fig. 9 Schematic diagram of the arrangement of a contact sensor and a second driving member provided by an exemplary embodiment of the present application.

[0046] Description of the reference numerals in the accompanying drawings:

[0047] 100-a device for treating pharmaceutical wastewater; 1-a flotation tank; 11-a first side wall; 12-a second side wall; 13-a first end wall; 14-a second end wall; 15-a bottom wall; 16-a stopper; 2-a scraping assembly; 21-a scraping plate; 211-a first plate body; 2111-a plate body; 2112-a plug-in block; 212-a second plate body; 213-a third plate body; 22-a first driving member; 221-a motor; 222-a screw; 23-a second driving member; 231-an inflatable airbag; 232-an inflatable assembly; 233-a control unit; 24-a mounting block; 241-a first accommodating chamber; 2411-a first cavity; 2412-a second cavity; 2413-a third cavity; 242-a second accommodating chamber; 243-a contact sensor; 3-a collecting assembly. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0049] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0050] The technical solution of the present application is described in detail below with reference to the accompanying drawings.

[0051] Example 1

[0052] like Figures 1 to 9 As shown, this embodiment provides a treatment device for pharmaceutical wastewater, including a flotation tank 1, a scraper assembly 2 and a collection assembly 3. The flotation tank 1 includes a first side wall 11 and a second side wall 12, a first end wall 13 and a second end wall 14, and a bottom wall 15. The scraper assembly 2 includes a scraper plate 21, a first driving member 22 and a second driving member 23. The first driving member 22 is connected to the scraper plate 21 to drive the scraper plate 21 to move in a first direction, and the first direction is a direction from the second end wall 14 to the first end wall 13. The second driving member 23 is connected to the scraper plate 21 to drive the scraper plate 21 to move in a vertical direction. The scraper plate 21 includes a first plate body 211 and a second plate body 212 connected to each other. The first plate body 211 is arranged in the vertical direction, and the second plate body 212 is inclined toward the direction of the first end wall 13. The collecting assembly 3 is arranged on a side of the first end wall 13 away from the second end wall 14, the top surface of the first end wall 13 is higher than the bottom surface of the second plate body 212, and the collecting assembly 3 is arranged as a trough structure with an open top;

[0053] The pharmaceutical wastewater treatment device 100 includes a first state and a second state. In the first state, the scraper plate 21 moves along the first direction driven by the first driving member 22, and the second plate body 212 is separated from the first end wall 13; in the second state, the scraper plate 21 moves along the vertical direction driven by the second driving member 23, and the second plate body 212 is in contact with the first end wall 13.

[0054] Through the above technical solution, on the one hand, since the scraper plate 21 of the present application includes a first plate body 211 arranged in the vertical direction and a second plate body 212 inclined toward the first end wall 13, in this way, when the scraper plate 21 moves toward the first end wall 13, the scum will be pushed by the first plate body 211 and supported by the second plate body 212, so that most of the scum can be supported by the second plate body 212 and will not sink under the action of its own gravity, which is conducive to enabling most of the scum to be pushed to one side of the flotation tank 1 by the scraper plate 21 at one time, so as to improve the scraping efficiency of the scum.

[0055] On the other hand, since the present application also provides a second driving member 23 capable of driving the scraper plate 21 in the vertical direction, when the scraper plate 21 moves to the second state, the scraper plate 21 can be lifted by the second driving member 23 while abutting against the first end wall 13, so that all scum located above the second plate body 212 can be lifted to a position higher than the first end wall 13, so that most of the scum can be discharged from the flotation tank 1, thereby further improving the scum scraping efficiency.

[0056] In the above-mentioned embodiment, it should be noted that:

[0057] First, the first driving member 22 and the second driving member 23 of the present application may have a variety of optional implementations, for example, they may be a linear driving mechanism or a screw-type driving mechanism, and the present application does not make any specific limitation on this.

[0058] Second, the flotation tank 1 of the present application is the flotation process tank in the prior art, and other corresponding structures (for example, dissolved air tanks) are not shown. Since the flotation tank 1 is widely used in this field, its detailed structure, working principle or working process will not be described in detail here.

[0059] Third, the collecting component 3 of the present application may have a variety of optional implementations. For example, the collecting component 3 may be directly formed into a trough structure, and a suction pump may be used to transport the scum. Alternatively, the collecting component 3 may be formed into a trough structure, and a drainage pipe provided at the bottom of the trough structure may be used to transport the scum. The present application does not make any specific limitation on this.

[0060] In one embodiment of the present application, Figure 1 , Figures 4 to 6As shown, the first driving member 22 of the present application can also be used to drive the scraper plate 21 to move along the second direction, and the second direction is the direction from the first end wall 13 to the second end wall 14; the scraper plate 21 can also include a third plate body 213, one end of the third plate body 213 is simultaneously connected to the first plate body 211 and the second plate body 212, and the third plate body 213 is tilted toward the direction of the second end wall 14, so that the scraper plate 21 forms an inverted Y-shaped structure, and the top surface of the second end wall 14 is higher than the bottom surface of the third plate body 213; the collecting assembly 3 can be set to two, one of the two collecting assemblies 3 is arranged on the side of the first end wall 13 away from the second end wall 14, and the other of the two collecting assemblies 3 is arranged on the side of the second end wall 14 away from the first end wall 13.

[0061] In this way, by means of the first driving member 22, the collecting assembly 3 and the third plate body 213 arranged in this way, the scraping plate 21 can scrape the scum in the flotation tank 1 during the reciprocating process, which is beneficial to further improve the scraping efficiency of the scum.

[0062] In one embodiment of the present application, the second plate body 212 and the third plate body 213 of the present application can be symmetrically arranged with respect to the first plate body 211, and the top surface of the first end wall 13 is flush with the top surface of the second end wall 14. In this way, the second plate body 212 and the third body can exert the same scraping effect, ensuring that the scraper plate 21 can effectively scrape the scum of the flotation tank 1 during the back-and-forth movement.

[0063] In one embodiment of the present application, the angle A between the first plate 211 and the second plate 212 of the present application satisfies: 105°≤A≤165°. Since the second plate 212 needs to bear the scum and cannot affect the scum entering the upper part of the second plate 212, the angle between the first plate 211 and the second plate 212 should not be too large or too small. In this embodiment, when the angle between the first plate 211 and the second plate 212 is set to 105°, the second plate 212 can have a better effect of bearing the scum on the basis of ensuring that the scum does not enter the upper part of the second plate 212. When the angle between the first plate 211 and the second plate 212 is set to 165°, the second plate 212 can ensure the bearing effect on the scum so that the scum can enter the upper part of the second plate 212 more easily.

[0064] Similarly, the angle B between the first plate body 211 and the third plate body 213 satisfies: 105°≤B≤165°.

[0065] In one embodiment of the present application, Figures 1 to 3 , Figures 7 to 9As shown, the scraper assembly 2 of the present application may also include a mounting block 24, a first driving member 22 connected to the mounting block 24 to drive the mounting block 24 to move in the first direction or the second direction, the top surface of the mounting block 24 is recessed inward to form a first accommodating cavity 241, and a second accommodating cavity 242 is formed inside the mounting block; the first plate body 211 includes a plate body 2111 and a plug-in block 2112 formed on the plate body 2111, the plug-in block 2112 is used to be inserted into the first accommodating cavity 241 so that the mounting block 24 is connected to the scraper plate 21; the second driving member 23 includes an inflatable airbag 231 and an inflatable component 232, the inflatable airbag 231 is arranged in the first accommodating cavity 241, the inflatable component 232 is arranged in the second accommodating cavity 242, and the inflatable component 232 is connected to the inflatable airbag 231 for inflating the inflatable airbag 231.

[0066] In this way, the first driving member 22 is connected to the mounting block 24, so that it can drive the scraper plate 21 to move in the first direction or the second direction to scrape off the scum; at the same time, when the scraper plate 21 contacts the first end wall 13 or the second end wall 14, the inflatable airbag 231 can be inflated by the inflation component 232 to expand the inflatable airbag 231, thereby lifting the mounting block 24, and then the scraper plate 21 can move in the vertical direction, so that the bottom of the scraper plate 21 can be higher than the first end wall 13 or the second end wall 14, so that the scum on the second plate body 212 can be discharged from the flotation tank 1.

[0067] In one embodiment of the present application, Figure 7 and Figure 8 As shown, the first accommodating cavity 241 of the present application includes a first cavity 2411, a second cavity 2412 and a third cavity 2413 which are arranged in sequence along the vertical direction. The first cavity 2411 is located above the second cavity 2412, and the third cavity 2413 is located below the second cavity 2412. The size of the first cavity 2411 in the first direction is larger than the size of the third cavity 2413 in the first direction; both ends of the second cavity 2412 are respectively connected to the first cavity 2411 and the third cavity 2413, and the size of the second cavity 2412 in the first direction gradually decreases in the direction from the first cavity 2411 to the third cavity 2413.

[0068] In this way, through the first accommodating cavity 241 configured in this way, on the one hand, when the inflatable airbag 231 is inflated, the scraper plate 21 can be lifted under the action of the inflatable airbag 231, and because the size of the first cavity 2411 in the first direction is larger than the size of the third cavity 2413 in the first direction, the plug-in block 2112 will rotate (tilt) in the first cavity 2411 when entering the first cavity 2411 from the third cavity 2413, so that the scraper plate 21 can rotate (or tilt), so that the scum accumulated on the second plate 212 or the third plate 213 can fall off the scraper plate 21 more thoroughly, further improving the scum scraping efficiency. On the other hand, when the inflatable airbag 231 is exhausted and shrinks, the scraper plate 21 can quickly and accurately return to its original position along the second cavity 2412 under the action of gravity, so as to facilitate the next scum scraping operation.

[0069] In one embodiment of the present application, Figure 3 As shown, the first driving member 22 of the present application may include a motor 221 and a screw 222, the output end of the motor 221 is connected to the screw 222 to drive the screw 222 to rotate; a threaded through hole matching the screw 222 is formed on the mounting block 24, and the mounting block 24 is sleeved on the screw 222 to form a screw nut pair. In this way, by setting the first driving member 22 in this way, the scraper plate 21 can be stably and reliably moved along the first direction or the second direction.

[0070] In one embodiment of the present application, Figure 1 As shown, the mounting block 24, the first driving member 22 and the second driving member 23 of the present application can be respectively arranged in two groups, which are respectively arranged corresponding to the first side wall 11 and the second side wall 12; the first plate body 211 includes a plate body 2111 and two plug-in blocks 2112 formed at both ends of the plate body 2111, and the two plug-in blocks 2112 are respectively plugged with the corresponding mounting blocks 24. In this way, the mounting block 24, the first driving member 22 and the second driving member 23 arranged in this way can be more conveniently installed in the flotation tank 1, and the efficiency and stability of the scum scraping operation of the scraper plate 21 are ensured.

[0071] In one embodiment of the present application, Figure 1 and Figure 3As shown, the flotation pool 1 of the present application may also include four blocks 16, two of the four blocks 16 are relatively arranged on the top surface of the first side wall 11, and the other two of the four blocks 16 are relatively arranged on the top surface of the second side wall 12; each mounting block 24 is provided with two contact sensors 243, and the two contact sensors 243 are respectively arranged on both sides of the mounting block 24, so that when the second plate body 212 moves to contact with the first end wall 13 or the second end wall 14, the contact sensor 243 contacts with the block 16; the second driving member 23 also includes a control unit 233, and the control unit 233 is electrically connected to the inflation component 232 and the contact sensor 243 respectively.

[0072] In this way, when the second plate body 212 contacts the first end wall 13 or the second end wall 14, the contact sensor 243 contacts the corresponding stop block 16 to generate an induction signal, thereby starting the second driving member 23 to drive the scraper plate 21 to move upward. At the same time, in this process, since the first driving member 22 adopts the form of a screw nut and has a certain self-locking performance, it can prevent the mounting block 24 from moving in the first direction or the second direction, which is conducive to ensuring the smooth progress of the scum scraping operation.

[0073] In one embodiment of the present application, Figure 3 As shown, the top surfaces of the first end wall 13 and the second end wall 14 of the present application are respectively formed as inclined surfaces, and the inclination direction of the top surface of the first end wall 13 is the same as the inclination direction of the second plate body 212, and the inclination direction of the top surface of the second end wall 14 is the same as the inclination direction of the third plate body 213. The first end wall 13 and the second end wall 14 arranged in this way facilitate the scum on the second plate body 212 and the third plate body 213 to enter the collection assembly 3 more completely and smoothly.

[0074] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A treatment device for pharmaceutical wastewater, characterized in that: include: The flotation tank (1) comprises a first side wall (11) and a second side wall (12) arranged opposite to each other, a first end wall (13) and a second end wall (14) arranged opposite to each other, and a bottom wall (15); A scraper assembly (2), comprising a scraper plate (21), a first driving member (22) and a second driving member (23), wherein the first driving member (22) is connected to the scraper plate (21) to drive the scraper plate (21) to move along a first direction, wherein the first direction is a direction from the second end wall (14) to the first end wall (13), and the second driving member (23) is connected to the scraper plate (21) to drive the scraper plate (21) to move along a vertical direction, wherein the scraper plate (21) comprises a first plate body (211) and a second plate body (212) connected to each other, wherein the first plate body (211) is arranged along a vertical direction, and the second plate body (212) is arranged obliquely toward the direction of the first end wall (13); A collecting assembly (3) is arranged on a side of the first end wall (13) away from the second end wall (14), the top surface of the first end wall (13) is higher than the bottom surface of the second plate body (212), and the collecting assembly (3) is arranged as a trough structure with an open top; The pharmaceutical wastewater treatment device comprises a first state and a second state. In the first state, the scraper plate (21) moves along the first direction driven by the first driving member (22), and the second plate body (212) and the first end wall (13) are separated from each other; in the second state, the scraper plate (21) moves along the vertical direction driven by the second driving member (23), and the second plate body (212) and the first end wall (13) are in contact with each other.

2. The pharmaceutical wastewater treatment device according to claim 1, characterized in that: The first driving member (22) is also used to drive the scraper plate (21) to move along a second direction, wherein the second direction is a direction from the first end wall (13) to the second end wall (14); The scraper plate (21) further comprises a third plate body (213), one end of the third plate body (213) being connected to both the first plate body (211) and the second plate body (212), and the third plate body (213) being arranged in an inclined manner toward the second end wall (14), so that the scraper plate (21) forms an inverted Y-shaped structure, and the top surface of the second end wall (14) is higher than the bottom surface of the third plate body (213); The collecting components (3) are provided in two numbers, one of the two collecting components (3) is provided on a side of the first end wall (13) away from the second end wall (14), and the other of the two collecting components (3) is provided on a side of the second end wall (14) away from the first end wall (13).

3. The pharmaceutical wastewater treatment device according to claim 2, characterized in that: The second plate body (212) and the third plate body (213) are symmetrically arranged with respect to the first plate body (211), and the top surface of the first end wall (13) is flush with the top surface of the second end wall (14).

4. The pharmaceutical wastewater treatment device according to claim 2, characterized in that: The angle A between the first plate body (211) and the second plate body (212) satisfies: 105°≤A≤165°; and / or, An included angle B between the first plate body (211) and the third plate body (213) satisfies: 105°≤B≤165°.

5. The pharmaceutical wastewater treatment device according to claim 2, characterized in that: The scraper assembly (2) further comprises a mounting block (24), the first driving member (22) being connected to the mounting block (24) for driving the mounting block (24) to move in the first direction or the second direction, the top surface of the mounting block (24) being inwardly recessed to form a first accommodating cavity (241), and a second accommodating cavity (242) being formed inside the mounting block (24); The first plate body (211) comprises a plate body (2111) and a plug-in block (2112) formed on the plate body (2111), wherein the plug-in block (2112) is used to be inserted into the first accommodating cavity (241) so that the mounting block (24) and the scraper plate (21) are in a connected state; The second driving member (23) comprises an inflatable airbag (231) and an inflatable component (232); the inflatable airbag (231) is arranged in the first accommodating cavity (241); the inflatable component (232) is arranged in the second accommodating cavity (242); the inflatable component (232) is connected to the inflatable airbag (231) for inflating the inflatable airbag (231).

6. The pharmaceutical wastewater treatment device according to claim 5, characterized in that: The first accommodating cavity (241) comprises a first cavity (2411), a second cavity (2412) and a third cavity (2413) which are arranged in sequence along a vertical direction, the first cavity (2411) is located above the second cavity (2412), the third cavity (2413) is located below the second cavity (2412), and the size of the first cavity (2411) in the first direction is greater than the size of the third cavity (2413) in the first direction; The two ends of the second cavity (2412) are respectively connected to the first cavity (2411) and the third cavity (2413), and the size of the second cavity (2412) in the first direction gradually decreases in the direction from the first cavity (2411) to the third cavity (2413).

7. The pharmaceutical wastewater treatment device according to claim 5, characterized in that: The first driving member (22) comprises a motor (221) and a screw rod (222), and an output end of the motor (221) is connected to the screw rod (222) so as to drive the screw rod (222) to rotate; A threaded through hole matching the screw rod (222) is formed on the mounting block (24), and the mounting block (24) is sleeved on the screw rod (222) to form a screw nut pair.

8. The pharmaceutical wastewater treatment device according to claim 7, characterized in that: The mounting block (24), the first driving member (22) and the second driving member (23) are respectively arranged in two groups, and are respectively arranged corresponding to the first side wall (11) and the second side wall (12); The first plate body (211) comprises a plate body (2111) and two plug-in blocks (2112) formed at two ends of the plate body (2111), and the two plug-in blocks (2112) are respectively plugged into corresponding mounting blocks (24).

9. The pharmaceutical wastewater treatment device according to claim 8, characterized in that: The flotation tank (1) further comprises four stoppers (16), two of the four stoppers (16) being arranged oppositely on the top surface of the first side wall (11), and the other two of the four stoppers (16) being arranged oppositely on the top surface of the second side wall (12); Two contact sensors (243) are provided on each of the mounting blocks (24), and the two contact sensors (243) are respectively provided on two sides of the mounting block (24), so that when the second plate (212) moves to contact the first end wall (13) or the second end wall (14), the contact sensor (243) contacts the stopper (16); The second driving member (23) further comprises a control unit (233), and the control unit (233) is electrically connected to the inflation component (232) and the contact sensor (243) respectively.

10. The pharmaceutical wastewater treatment device according to claim 2, characterized in that: The top surfaces of the first end wall (13) and the second end wall (14) are respectively formed as inclined surfaces, the inclination direction of the top surface of the first end wall (13) is the same as the inclination direction of the second plate body (212), and the inclination direction of the top surface of the second end wall (14) is the same as the inclination direction of the third plate body (213).

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