Pharmaceutical wastewater treatment device

Abstract

The invention relates to the technical field of wastewater treatment, and provides a pharmaceutical wastewater treatment device which comprises a treatment box, a rotating shaft, a stirring paddle, a polishing agent bin and a fixing ring, the rotating shaft is rotationally arranged on the treatment box, the stirring paddle is arranged on the rotating shaft, the fixing ring is arranged on the treatment box and is coaxial with the rotating shaft, and a plurality of first protrusions are arranged at the top of the fixing ring; the polishing agent bin is slidably arranged on the rotating shaft and located above the fixing ring, a plurality of second protrusions are arranged at the bottom of the polishing agent bin, after the rotating shaft rotates, the first protrusions make contact with the second protrusions, and an agent outlet is formed in the bottom of the polishing agent bin and used for discharging auxiliaries. By means of the technical scheme, the problem that in the prior art, the distribution uniformity is difficult to guarantee due to the fact that the flocculant is manually put is solved.

Description

Technical Field

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

[0002] Washing Chinese herbal medicines is one of the important links in the production and preparation of Chinese herbal medicines. The wastewater produced by washing Chinese herbal medicines has complex components and usually contains a large amount of organic matter, suspended matter, soluble substances and colloids. Its water quality has the characteristics of high chromaticity and good biodegradability. Direct discharge will cause serious pollution to the environment, so effective treatment is required to meet the discharge standards.

[0003] By adding flocculants, suspended particles and colloidal substances in wastewater can be condensed and precipitated, thereby reducing the concentration of pollutants, improving the biodegradability of wastewater, and creating favorable conditions for subsequent treatment processes. Commonly used flocculants include polyferric sulfate, polyaluminum chloride, polyacrylamide, etc. Different flocculants have different treatment effects under different wastewater quality conditions.

[0004] There are many disadvantages in the manual method of adding flocculants. Due to differences in operating habits, addition speed, stirring strength and other factors of operators, it is difficult to ensure that the flocculants are evenly dispersed in the wastewater. This results in the flocculant and wastewater not being fully mixed, and the flocculant concentration in some areas is too high, while the concentration in some areas is too low. In areas where the flocculant concentration is too high, larger flocs may form quickly, but these flocs have loose structures and are easily broken; while in areas where the flocculant concentration is too low, it is difficult for the pollutants in the wastewater to undergo an effective coagulation reaction and they still exist in the water in the form of fine particles or colloids.

[0005] To sum up, in the process of traditional Chinese medicine production and preparation, the wastewater generated by washing traditional Chinese medicines has the problem of uneven distribution when artificially adding flocculants during treatment, which seriously affects the efficiency and effect of wastewater treatment. Therefore, a more efficient pharmaceutical wastewater treatment device is needed to solve this problem. Summary of the invention

[0006] The present invention provides a pharmaceutical wastewater treatment device, which solves the problem in the related art that it is difficult to ensure uniform distribution of flocculants when artificially adding them.

[0007] The technical solution of the present invention is as follows: A pharmaceutical wastewater treatment device comprises a treatment box, a rotating shaft, a stirring paddle, a propellant bin and a fixed ring, wherein the rotating shaft is rotatably arranged on the treatment box, the stirring paddle is arranged on the rotating shaft, the fixed ring is arranged on the treatment box and is coaxially arranged with the rotating shaft, the top of the fixed ring has a plurality of protrusions 1, the propellant bin is slidably arranged on the rotating shaft and is located above the fixed ring, the bottom of the propellant bin has a plurality of protrusions 2, after the rotating shaft rotates, it is used to make the protrusion 1 contact the protrusion 2, and the bottom of the propellant bin has a discharge hole for discharging the auxiliary agent.

[0008] Optionally, the treatment box has a reaction zone and a flotation zone that are interconnected, the rotating shaft is located in the reaction zone, and also includes an air dissolving tank, which is arranged on the outer wall of the treatment box and is used to mix the wastewater with compressed air and then discharge it into the reaction zone.

[0009] Optionally, a spring 1 is further included, wherein two ends of the spring 1 act on the rotating shaft and the propellant bin respectively, and are used to provide a force for the protrusion 1 to approach the protrusion 2.

[0010] Optionally, it also includes a movable frame, a sewage pipe, a rotating ring and a slag scooping plate, the movable frame is movably arranged on the top of the processing box, the sewage pipe is arranged on the movable frame, the top of the sewage pipe has a slag inlet along its own length direction, the rotating ring is rotatably arranged on the movable frame and is coaxially arranged with the sewage pipe, the slag scooping plate is arranged on the rotating ring, the slag scooping plates are multiple and are used to salvage slag on the surface of the wastewater in the flotation area, after the rotating ring rotates, the slag scooping plate scrapes the outer wall of the sewage pipe to scrape the slag into the slag inlet.

[0011] Optionally, it also includes a fixed plate, a movable plate, a second spring and a slag blowing air bag, the fixed plate is arranged on the movable frame, the movable plate is slidably arranged on the fixed plate, the two ends of the second spring act on the fixed plate and the movable plate respectively, for providing a force for the movable plate to move away from the fixed plate, the upper and lower end surfaces of the slag blowing air bag are respectively arranged on the movable plate and the fixed plate, the bottom of the slag blowing air bag is provided with an exhaust nozzle, the nozzle faces the slag inlet, and is used to blow the floating slag on the slag scooping plate into the slag inlet.

[0012] Optionally, it also includes a support rod and a pressure roller, wherein the support rod is arranged on the slag scooping plate, and the pressure roller is rotatably arranged at the end of the support rod. After the slag scooping plate rotates, the pressure roller contacts and presses down the movable plate to compress the slag blowing air bag and make the air nozzle eject air.

[0013] Optionally, the slag scoop plate has a plurality of drainage holes.

[0014] Optionally, a sewage auger is also included, and the sewage auger is rotatably arranged in the sewage pipe.

[0015] Optionally, it also includes a sewage trough body, which is arranged on the side wall of the processing box, and the pipe mouth of the sewage pipe is located above the sewage trough body.

[0016] Optionally, a climbing pedal is also included, and the climbing pedal is arranged on the side wall of the processing box.

[0017] The working principle and beneficial effects of the present invention are: First, pour the flocculant into the throwing agent bin through the opening at the top of the throwing agent bin. After starting, the shaft starts to rotate, and the throwing agent bin rotates accordingly. During the rotation process, due to the action of centrifugal force, the flocculant gradually gathers at the bottom of the throwing agent bin, and is discharged from the outlet hole, and evenly dispersed into the wastewater in the treatment box below. At the same time, the protrusion 2 at the bottom of the throwing agent bin will intermittently hit the protrusion 1 at the top of the fixed ring, causing the throwing agent bin to vibrate up and down. This vibration further promotes the discharge of flocculant from the outlet hole, avoiding the situation where the flocculant remains in the throwing agent bin or blocks the outlet hole. After the flocculant is evenly dispersed into the wastewater, the stirring paddle stirs the wastewater driven by the shaft to fully mix the flocculant and the wastewater. During the mixing process of the wastewater and the flocculant, the suspended particles and colloidal substances in the wastewater begin to undergo a coagulation reaction under the action of the flocculant, and gradually form flocs, thereby achieving the initial purification of the wastewater, improving the biodegradability of the wastewater, and creating good conditions for subsequent further treatment.

[0018] This pharmaceutical wastewater treatment device effectively solves the problem that it is difficult to ensure uniform distribution of flocculants when they are manually added. Through the rotating centrifugal force and vibration of the dosing bin, the flocculant can be evenly dispersed into the wastewater, ensuring sufficient mixing of the flocculant and the wastewater. Compared with manual addition, this device greatly improves the utilization efficiency of the flocculant and reduces the poor treatment effect and waste of resources caused by uneven distribution of flocculants. After the treatment, the suspended matter and colloidal substances in the wastewater are effectively condensed, the water quality is significantly improved, the efficiency and quality of wastewater treatment are improved, and the load of subsequent treatment processes is reduced. It helps Chinese medicine production enterprises to achieve more efficient and environmentally friendly wastewater treatment, reduce the risk of pollution to the environment, meet environmental protection requirements and enhance the sustainable development capabilities of enterprises. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0020] Figure 1 This is a structural schematic diagram of a pharmaceutical wastewater treatment device from one angle; Figure 2 It is a structural schematic diagram of a pharmaceutical wastewater treatment device from another angle; Figure 3is a structural schematic diagram of the rotating shaft; Figure 4 It is a structural schematic diagram of the propellant bin; Figure 5 is a schematic diagram of the structure of the fixed ring; Figure 6 This is a structural schematic diagram of the slag scoop plate at one angle; Figure 7 This is a schematic diagram of the structure of the slag scoop plate from another angle; Figure 8 is a schematic diagram of the structure of the drive shaft; Fig. 9 Schematic diagram of the internal structure of the sewage pipe; Fig.10 This is a schematic diagram of the structure of the side of the slag plate.

[0021] In the figure: 1, treatment box, 2, rotating shaft, 3, stirring paddle, 4, throwing agent bin, 5, fixed ring, 501, protrusion one, 401, protrusion two, 6, agent outlet hole, 101, reaction zone, 102, flotation zone, 7, dissolved gas tank, 8, spring one, 9, mobile frame, 10, sewage pipe, 11, rotating ring, 12, slag scoop plate, 13, slag inlet, 14, fixed plate, 15, movable plate, 16, spring two, 17, slag blowing air bag, 18, air nozzle, 19, support rod, 20, pressure roller, 21, drain hole, 22, sewage auger, 23, sewage trough, 24, climbing pedal, 25, motor, 26, drive shaft, 27, pulley one, 28, pulley two, 29, gear. DETAILED DESCRIPTION

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0023] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0024] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0026] Reference Figure 1 to Figure 10 , which is the first embodiment of the present invention, proposes a pharmaceutical wastewater treatment device, including a treatment box 1, a rotating shaft 2, a stirring paddle 3, a propellant bin 4 and a fixed ring 5, wherein the rotating shaft 2 is rotatably arranged on the treatment box 1, the stirring paddle 3 is arranged on the rotating shaft 2, the fixed ring 5 is arranged on the treatment box 1 and is coaxially arranged with the rotating shaft 2, the top of the fixed ring 5 has a plurality of protrusions 501, the propellant bin 4 is slidably arranged on the rotating shaft 2 and is located above the fixed ring 5, the bottom of the propellant bin 4 has a plurality of protrusions 401, after the rotating shaft 2 rotates, it is used to make the protrusions 501 contact the protrusions 401, and the bottom of the propellant bin 4 has a discharge hole 6 for discharging the auxiliary agent.

[0027] In this embodiment, the flocculant is first poured into the throwing agent bin 4 through the opening at the top of the throwing agent bin 4, and after starting, the rotating shaft 2 starts to rotate, and the throwing agent bin 4 rotates accordingly. During the rotation process, due to the action of centrifugal force, the flocculant gradually gathers at the bottom of the throwing agent bin 4, and is discharged from the outlet hole 6, and evenly dispersed into the wastewater in the treatment box 1 below. At the same time, the protrusion 2 401 at the bottom of the throwing agent bin 4 will intermittently hit the protrusion 1 501 at the top of the fixing ring 5, causing the throwing agent bin 4 to vibrate up and down. This vibration further promotes the discharge of the flocculant from the outlet hole 6, avoiding the situation where the flocculant remains in the throwing agent bin 4 or blocks the outlet hole 6. After the flocculant is evenly dispersed into the wastewater, the stirring paddle 3 stirs the wastewater driven by the rotating shaft 2 to fully mix the flocculant with the wastewater. During the mixing process of wastewater and flocculant, the suspended particles and colloidal substances in the wastewater begin to undergo coagulation reaction under the action of the flocculant and gradually form flocs, thereby achieving preliminary purification of the wastewater, improving the biodegradability of the wastewater, and creating good conditions for subsequent further treatment.

[0028] This pharmaceutical wastewater treatment device effectively solves the problem that it is difficult to ensure uniform distribution of flocculants when they are manually added. Through the rotating centrifugal force and vibration of the throwing agent bin 4, the flocculant can be evenly dispersed into the wastewater, ensuring the full mixing of the flocculant and the wastewater. Compared with manual addition, the device greatly improves the utilization efficiency of the flocculant and reduces the poor treatment effect and waste of resources caused by uneven distribution of the flocculant. After the treatment, the suspended matter and colloidal substances in the wastewater are effectively condensed, the water quality is significantly improved, the efficiency and quality of wastewater treatment are improved, the load of subsequent treatment processes is reduced, and it is helpful for Chinese medicine production enterprises to achieve more efficient and environmentally friendly wastewater treatment, reduce the risk of pollution to the environment, meet environmental protection requirements and enhance the sustainable development capabilities of enterprises.

[0029] The treatment box 1 has a reaction zone 101 and a flotation zone 102 that are interconnected. The rotating shaft 2 is located in the reaction zone 101 . It also includes an air dissolving tank 7 . The air dissolving tank 7 is arranged on the outer wall of the treatment box 1 and is used to mix wastewater with compressed air and then discharge it into the reaction zone 101 .

[0030] In this embodiment, the wastewater generated by washing Chinese medicinal materials is introduced into the gas dissolving tank 7, where the wastewater is fully mixed with compressed air to form gas-dissolving water containing saturated gas, and then the gas-dissolving water is discharged into the reaction zone 101 of the treatment box 1. At this time, the rotating shaft 2 located in the reaction zone 101 drives the stirring paddle 3 to stir the gas-dissolving water and the input flocculant, and the gas in the gas-dissolving water escapes in the form of microbubbles and attaches to the flocculated suspended matter. Then the wastewater flows into the flotation zone 102. Due to the buoyancy of the microbubbles, the floccules rise to the water surface together with the bubbles to form scum, which can be removed by scraping equipment, and the treated clean water is discharged at the bottom of the flotation zone 102, achieving solid-liquid separation, and the initially purified water can be further subjected to subsequent deep treatment or discharge up to standard.

[0031] It also includes a spring 8, the two ends of which act on the rotating shaft 2 and the propellant chamber 4 respectively, for providing a force for the protrusion 1 501 to approach the protrusion 2 401.

[0032] In this embodiment, when the rotating shaft 2 drives the propellant bin 4 to rotate, the protrusion 2 401 at the bottom of the propellant bin 4 will contact the protrusion 1 501 at the top of the fixing ring 5. At the moment of contact, the propellant bin 4 will be pushed up, and the spring 1 8 will be stretched and store elastic potential energy. Under the action of the restoring force of the spring 1 8, the propellant bin 4 will quickly re-approach the fixing ring 5. In this way, the propellant bin 4 will continuously generate high-frequency up and down vibrations due to the interaction between the protrusion 2 401 and the protrusion 1 501 and the elastic force of the spring 1 8 during the rotation of the rotating shaft 2.

[0033] The setting of spring 18 significantly improves the vibration effect of the throwing agent bin 4. The elastic force provided by spring 18 effectively controls the vibration frequency and amplitude of the throwing agent bin 4, ensuring the uniformity and stability of flocculant delivery. Due to the enhanced vibration effect, the residual and accumulation of flocculants in the throwing agent bin 4 are reduced, the utilization rate of the flocculants is improved, and the processing cost is reduced.

[0034] It also includes a movable frame 9, a sewage pipe 10, a rotating ring 11 and a slag scooping plate 12. The movable frame 9 is movably arranged on the top of the processing box 1. The sewage pipe 10 is arranged on the movable frame 9. The top of the sewage pipe 10 has a slag inlet 13 along its own length direction. The rotating ring 11 is rotatably arranged on the movable frame 9 and is coaxially arranged with the sewage pipe 10. The slag scooping plate 12 is arranged on the rotating ring 11. There are multiple slag scooping plates 12 for scooping slag on the surface of the wastewater in the flotation area 102. After the rotating ring 11 rotates, the slag scooping plate 12 scrapes the outer wall of the sewage pipe 10 to scrape the slag into the slag inlet 13.

[0035] In this embodiment, after the wastewater is treated with flotation in the treatment box 1, a large amount of scum will gather on the water surface. At this time, the motor 25 installed on the mobile frame 9 is started, and the motor 25 rotates the drive shaft 26 through the synchronous belt, and the drive shaft 26 drives the pulley 1 27, the pulley 1 27 drives the pulley 2 28, and the pulley 28 drives the gear 29. The rotating ring 11 is actually a gear ring, which meshes with the gear 29, and the gear 29 finally drives the rotating ring 11 to rotate.

[0036] The mobile frame 9 moves on the top of the treatment box 1, and the rotating ring 11 starts to rotate, driving the multiple slag scooping plates 12 installed thereon to rotate synchronously. The slag scooping plates 12 gradually penetrate below the water surface of the flotation zone 102 during the rotation process, scoop up the slag and lift it upward with the rotation. The slag scooping plates 12 are in contact with the outer wall of the sewage pipe 10. Due to the continuous rotation of the rotating ring 11, the slag scooping plates 12 will scrape the outer wall of the sewage pipe 10. Under this scraping action, the slag attached to the slag scooping plates 12 is scraped into the slag inlet 13 at the top of the sewage pipe 10 and discharged along the sewage pipe 10, thereby achieving efficient cleaning of the slag on the water surface of the flotation zone 102.

[0037] By setting up a mobile frame 9, a sewage pipe 10, a rotating ring 11 and a slag scooping plate 12, an efficient and convenient solution is provided for cleaning the slag in the flotation area 102. The movement of the mobile frame 9 enables the slag scooping plate 12 to cover a larger water surface area of ​​the flotation area 102, ensuring that the slag in different positions can be cleaned in time, and will not occupy too much space on the top of the treatment box 1, which is convenient for observing the treatment situation. The scraping design of the slag scooping plate 12 and the outer wall of the sewage pipe 10 cleverly realizes the transfer of slag from the slag scooping plate 12 to the sewage pipe 10. This slag cleaning method takes up little space, improves the overall effect of flotation treatment, ensures the stability of the water quality of the treated wastewater, helps Chinese medicine production enterprises better meet environmental protection emission standards during wastewater treatment, and also reduces the difficulty and cost of subsequent maintenance and cleaning.

[0038] It also includes a fixed plate 14, a movable plate 15, a second spring 16 and a slag blowing airbag 17, wherein the fixed plate 14 is arranged on the movable frame 9, the movable plate 15 is slidably arranged on the fixed plate 14, two ends of the second spring 16 act on the fixed plate 14 and the movable plate 15 respectively, and are used to provide a force for the movable plate 15 to move away from the fixed plate 14, the upper and lower end surfaces of the slag blowing airbag 17 are respectively arranged on the movable plate 15 and the fixed plate 14, and the bottom of the slag blowing airbag 17 has an exhaust nozzle 18, and the nozzle 18 faces the slag inlet 13, and is used to blow the floating slag on the slag scooping plate 12 into the slag inlet 13.

[0039] In this embodiment, during the process of the slag scooping plate 12 rotating to scoop up slag, when the slag scooping plate 12 carries the slag and rotates to contact the outer wall of the sewage pipe 10 and approaches the slag inlet 13, the slag begins to slide toward the slag inlet 13 under the action of its own gravity. In order to avoid the situation where the slag does not flow smoothly or remains on the slag scooping plate 12, the movable plate 15 can be slid, and the movable plate 15 overcomes the elastic force of the spring 16 and approaches the fixed plate 14. At this time, the slag blowing airbag 17 located between the movable plate 15 and the fixed plate 14 is squeezed, and the air nozzle 18 at the bottom of the slag blowing airbag 17 faces the slag inlet 13. After being squeezed, the internal gas is ejected from the air nozzle 18 at a high speed, forming an airflow blowing toward the slag on the slag scooping plate 12. This airflow gives the slag an additional driving force, so that it can overcome the possible adhesion or other obstacles, so that it can flow into the slag inlet 13 more smoothly and thoroughly, and then be discharged through the sewage pipe 10. After the slag is cleaned, the movable plate 15 is released, and under the restoring force of the spring 16, the movable plate 15 returns to the initial position, and the slag blowing airbag 17 re-inhales air and returns to its original state, preparing for the next slag blowing operation.

[0040] The arrangement of the fixed plate 14, the movable plate 15, the spring 16 and the slag blowing airbag 17 effectively improves the thoroughness of the slag cleaning. During the slag cleaning process in the flotation zone 102, although the scraping design of the slag scooping plate 12 and the sewage pipe 10 can introduce most of the slag into the slag inlet 13, some slag may still remain. The slag blowing airbag 17 provides an auxiliary cleaning means, which can ensure that the slag on the slag scooping plate 12 enters the slag inlet 13 as completely as possible through the impact of airflow, thereby reducing the amount of slag remaining in the treatment box 1.

[0041] It also includes a support rod 19 and a pressure roller 20. The support rod 19 is arranged on the slag scooping plate 12. The pressure roller 20 is rotatably arranged at the end of the support rod 19. After the slag scooping plate 12 rotates, the pressure roller 20 contacts and presses down the movable plate 15 to compress the slag blowing air bag 17 and enable the air nozzle 18 to spray.

[0042] In this embodiment, when the rotating ring 11 drives the slag scooping plate 12 to revolve to clean the slag on the water surface of the air flotation area 102, the support rod 19 installed on the slag scooping plate 12 rotates synchronously with the slag scooping plate 12. When the slag scooping plate 12 gradually approaches the sewage pipe 10 and is about to reach the position of the slag inlet 13, the pressure roller 20 at the end of the support rod 19 first contacts the movable plate 15. As the slag scooping plate 12 continues to rotate, the pressure roller 20 rolls on the movable plate 15 and exerts downward pressure on it, so that the movable plate 15 overcomes the elastic force of the spring 16 and approaches the fixed plate 14. At this time, the slag blowing airbag 17 sandwiched between the movable plate 15 and the fixed plate 14 is compressed, and the gas inside it sprays airflow from the exhaust nozzle 18 at the bottom toward the slag inlet 13. The airflow acts on the slag scooping plate 12, pushing the slag to flow into the slag inlet 13 more smoothly and be discharged through the sewage pipe 10. After the slag scooping plate 12 continues to rotate away from this position, the restoring force of the spring 2 16 returns the movable plate 15 and the pressure roller 20 to their initial relative positions, and the slag blowing airbag 17 returns to its original state, ready for the next cycle of work. The entire process does not require manual intervention, and the automatic linkage operation of slag scooping and slag blowing is realized.

[0043] The design of the support rod 19 and the pressure roller 20 realizes the automatic linkage between the slag scooping plate 12 and the slag blowing airbag 17, which greatly improves the automation degree and working efficiency of the wastewater treatment device. In the process of treating wastewater from the production of traditional Chinese medicine, the cleaning of the slag in the flotation area 102 needs to be carried out continuously and requires high efficiency and accuracy. Through this linkage mechanism, when the slag scooping plate 12 performs the slag scooping operation and approaches the slag inlet 13, it can automatically trigger the slag blowing airbag 17 to spray air, ensuring that the slag is cleaned and enters the sewage pipe 10 in a timely and thorough manner. This automated operation reduces the workload and human errors of manual operation, improves the timeliness and stability of slag cleaning, and thus ensures the continuity and efficiency of the entire wastewater treatment process.

[0044] The slag scooping plate 12 has a plurality of drainage holes 21 .

[0045] In this embodiment, a plurality of drainage holes 21 are provided on the slag scooping plate 12. During the rising process of the slag scooping plate 12, the wastewater mixed in the slag will flow back to the flotation area 102 through the drainage holes 21 under the action of gravity. The slag and wastewater are effectively separated, the efficiency of conveying the slag by the sewage pipe 10 is improved, and the stable operation of the entire wastewater treatment device is guaranteed.

[0046] It also includes a sewage auger 22 , which is rotatably disposed in the sewage pipe 10 .

[0047] It also includes a sewage trough body 23 , which is arranged on the side wall of the processing box 1 , and the pipe mouth of the sewage pipe 10 is located above the sewage trough body 23 .

[0048] In this embodiment, after the scum enters the sewage pipe 10, the sewage auger 22 starts to work, and the sewage auger 22 is driven by the drive shaft 26 to rotate in the sewage pipe 10, and its spiral blades are in contact with the inner wall of the sewage pipe 10. The scum moves along the sewage pipe 10 toward the pipe mouth under the push of the spiral blades. Since the pipe mouth of the sewage pipe 10 is located above the sewage trough body 23, when the scum is pushed to the pipe mouth, it will fall into the sewage trough body 23 under the action of gravity. The sewage trough body 23 has a certain inclination angle and a guide structure, which can guide the scum to flow smoothly to a special collection container or further processing area, thereby realizing efficient collection and transfer of the scum, ensuring the continuity and integrity of the scum cleaning work in the flotation area 102 in the treatment box 1, and providing a strong guarantee for the stable operation of the entire wastewater treatment process.

[0049] The sewage auger 22 can force the scum entering the sewage pipe 10 to the pipe mouth, overcoming the problem of poor flow of the scum due to viscosity, accumulation and other reasons, and ensuring that the scum can be discharged from the sewage pipe 10 quickly and stably.

[0050] It also includes a climbing pedal 24, which is arranged on the side wall of the processing box 1.

[0051] In this embodiment, during the operation of the Chinese medicine production wastewater treatment device, the operator needs to regularly observe and evaluate the wastewater treatment situation. The condition of the wastewater surface in the treatment box 1 can be clearly observed with the aid of the climbing step 24 arranged on the side wall of the treatment box 1. By observing the color, transparency, distribution of scum on the water surface and other characteristics of the wastewater with the naked eye, the progress of the wastewater treatment can be judged, for example, whether the flocculation reaction is sufficient, whether the flotation effect is good, etc.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pharmaceutical wastewater treatment device, characterized in that: The invention comprises a treatment box (1), a rotating shaft (2), a stirring paddle (3), a propellant bin (4) and a fixed ring (5), wherein the rotating shaft (2) is rotatably arranged on the treatment box (1), the stirring paddle (3) is arranged on the rotating shaft (2), the fixed ring (5) is arranged on the treatment box (1) and is coaxially arranged with the rotating shaft (2), the top of the fixed ring (5) has a plurality of first protrusions (501), the propellant bin (4) is slidably arranged on the rotating shaft (2) and is located above the fixed ring (5), the bottom of the propellant bin (4) has a plurality of second protrusions (401), after the rotating shaft (2) rotates, the first protrusions (501) are used to contact the second protrusions (401), and the bottom of the propellant bin (4) has a discharge hole (6) for discharging the auxiliary agent.

2. A pharmaceutical wastewater treatment device according to claim 1, characterized in that: The treatment box (1) has a reaction zone (101) and a flotation zone (102) which are interconnected, the rotating shaft (2) is located in the reaction zone (101), and also includes an air dissolving tank (7), the air dissolving tank (7) is arranged on the outer wall of the treatment box (1), and is used to mix wastewater with compressed air and then discharge it into the reaction zone (101).

3. A pharmaceutical wastewater treatment device according to claim 1, characterized in that: It also includes a spring 1 (8), the two ends of which act on the rotating shaft (2) and the propellant chamber (4) respectively, and are used to provide a force for the protrusion 1 (501) to approach the protrusion 2 (401).

4. A pharmaceutical wastewater treatment device according to claim 2, characterized in that: The invention also comprises a movable frame (9), a sewage discharge pipe (10), a rotating ring (11) and a slag scooping plate (12), wherein the movable frame (9) is movably arranged on the top of the treatment box (1), the sewage discharge pipe (10) is arranged on the movable frame (9), the top of the sewage discharge pipe (10) is provided with a slag inlet (13) along its length direction, the rotating ring (11) is rotatably arranged on the movable frame (9) and is coaxially arranged with the sewage discharge pipe (10), the slag scooping plate (12) is arranged on the rotating ring (11), and the slag scooping plates (12) are multiple and are used to salvage slag on the surface of the wastewater in the flotation zone (102). After the rotating ring (11) rotates, the slag scooping plate (12) scrapes the outer wall of the sewage discharge pipe (10) to scrape the slag into the slag inlet (13).

5. A pharmaceutical wastewater treatment device according to claim 4, characterized in that: The invention also comprises a fixed plate (14), a movable plate (15), a second spring (16) and a slag blowing airbag (17), wherein the fixed plate (14) is arranged on the movable frame (9), the movable plate (15) is slidably arranged on the fixed plate (14), two ends of the second spring (16) respectively act on the fixed plate (14) and the movable plate (15) to provide a force for moving the movable plate (15) away from the fixed plate (14), the upper and lower end surfaces of the slag blowing airbag (17) are respectively arranged on the movable plate (15) and the fixed plate (14), and the bottom of the slag blowing airbag (17) is provided with an exhaust nozzle (18), the exhaust nozzle (18) faces the slag inlet (13) and is used to blow the floating slag on the slag scooping plate (12) into the slag inlet (13).

6. A pharmaceutical wastewater treatment device according to claim 5, characterized in that: It also includes a support rod (19) and a pressure roller (20), wherein the support rod (19) is arranged on the slag scooping plate (12), and the pressure roller (20) is rotatably arranged at the end of the support rod (19). After the slag scooping plate (12) rotates, the pressure roller (20) contacts and presses down the movable plate (15) to compress the slag blowing air bag (17) and enable the air nozzle (18) to spray air.

7. A pharmaceutical wastewater treatment device according to claim 6, characterized in that: The slag scoop plate (12) is provided with a plurality of drainage holes (21).

8. A pharmaceutical wastewater treatment device according to claim 7, characterized in that: It also includes a sewage discharge auger (22), wherein the sewage discharge auger (22) is rotatably disposed in the sewage discharge pipe (10).

9. A pharmaceutical wastewater treatment device according to claim 8, characterized in that: It also comprises a sewage trough body (23), wherein the sewage trough body (23) is arranged on the side wall of the processing box (1), and the pipe mouth of the sewage pipe (10) is located above the sewage trough body (23).

10. The pharmaceutical wastewater treatment device according to claim 1, characterized in that: It also includes a climbing pedal (24), wherein the climbing pedal (24) is arranged on the side wall of the processing box (1).

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