Wastewater treatment equipment and method for the preparation of Coptis chinensis toothpaste

Abstract

This invention relates to the field of wastewater treatment technology, specifically to a wastewater treatment device and method for preparing Coptis chinensis toothpaste. The device includes a mixing tank, a main shaft, rotating stirring blades, a mounting base, a swing base, swing stirring blades, and a drive component. In use, wastewater and chemicals enter through the inlet at the top of the mixing tank. After the drive component is activated, it drives the main shaft to rotate, which in turn drives multiple rotating stirring blades on it to rotate. Simultaneously, the drive component also drives all swing bases to swing left and right around their hinge points with the mounting base in the horizontal plane. Multiple sets of swing stirring blades fixed to the swing bases swing back and forth accordingly. The rotating stirring blades are responsible for large-scale agitation, while the swing stirring blades provide additional agitation for areas near the tank wall and slow-flowing corners that are difficult for the rotating stirring blades to reach, allowing the chemicals to quickly and evenly contact the pollutants. The strong agitation also prevents particles from settling at the bottom of the tank or sticking to the tank wall.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a wastewater treatment device and method for preparing Coptis chinensis toothpaste. Background Technology

[0002] The wastewater generated during the production of Coptis chinensis toothpaste is characterized by its complex composition, high viscosity, and tendency to settle. It typically contains pigments and alkaloids dissolved from medicinal herbs such as Coptis chinensis, inorganic particles used as abrasives (such as silica), thickeners, and some oils and surfactants. If this wastewater is not mixed evenly, it not only directly affects the effectiveness of subsequent treatment units such as flocculation and sedimentation, leading to substandard effluent quality, but also easily causes scale buildup on the inner walls and bottom of equipment, increasing cleaning difficulty and operating costs.

[0003] Currently, the treatment of this type of wastewater generally employs mixing tanks or reactors equipped with fixed agitators. In practical applications, it has been found that traditional stirring methods produce relatively regular and fixed flow fields, easily creating "mixing dead zones" near the tank walls, around the stirring shaft, and in the corners of the tank bottom where fluid exchange is slow or even stagnant. This results in insufficient local reagent concentrations, preventing pollutants from being effectively captured and dispersed. For high-viscosity wastewater containing solid particles, the shear force provided by single rotary stirring is insufficient to quickly break up colloidal aggregates and particle clusters, leading to low mixing efficiency and a forced extension of reaction time. Summary of the Invention

[0004] The purpose of this invention is to provide a wastewater treatment device and method for the preparation of Coptis chinensis toothpaste, which solves the problems of significant mixing dead zones, insufficient shear dispersion ability, low mixing efficiency, and difficulty in effectively preventing particle deposition on the wall and bottom when treating high-viscosity, easily sedimented toothpaste wastewater by traditional stirring methods.

[0005] To achieve the above objectives, the present invention provides a wastewater treatment device for the preparation of Coptis chinensis toothpaste, comprising a mixing tank, a main shaft, a rotating stirring blade, a mounting base, a swing base, a swing stirring blade, and a driving component. The main shaft is rotatably connected to the mixing tank and located inside the mixing tank. The rotating stirring blade is fixedly connected to the main shaft and communicates with the main shaft. The mounting base is fixedly connected to the mixing tank and located inside the mixing tank. The swing base is rotatably connected to the mounting base and disposed on the mounting base. The swing stirring blade is fixedly connected to the swing base and located on one side of the swing base. The driving component is disposed on the mixing tank.

[0006] The driving component includes a rotary motor and a drive gear. The rotary motor is connected to the mixing tank and located on one side of the mixing tank, and the output end of the rotary motor is connected to the main shaft. The drive gear is fixedly connected to the main shaft and is sleeved on the main shaft.

[0007] The driving component further includes a rotating disk, a driven gear, and a drive shaft. The rotating disk is rotatably connected to the mixing tank and is located inside the mixing tank. The driven gear is fixedly connected to the rotating disk, sleeved on the rotating disk, and meshes with the driving gear. The drive shaft is fixedly connected to the rotating disk and is located on the side of the rotating disk near the swing seat.

[0008] The swing seat has a groove, which is located on the side of the swing seat near the drive shaft and engages with the drive shaft, with the drive shaft extending into the groove.

[0009] The wastewater treatment equipment for the preparation of Coptis chinensis toothpaste further includes a cleaning component, which includes a rotary joint and a water supply pipe. The rotary joint is connected to the mixing tank and the main shaft, and is located at the bottom of the mixing tank. The water supply pipe is connected to the rotary joint and communicates with it.

[0010] The rotating stirring blade has a water spray hole, which is disposed on the stirring blade and extends through the stirring blade.

[0011] On the other hand, the present invention also includes a wastewater treatment method for the preparation of Coptis chinensis toothpaste, comprising the following steps: The wastewater from the Coptis chinensis toothpaste and the required water treatment agents are quantitatively added through the inlet at the top of the mixing tank; Start the rotary motor to drive the main shaft and the multi-layered rotating stirring blades fixed on it to rotate at a constant speed; at the same time, the driven gear meshing with the main shaft is driven by the driving gear fixed to the main shaft to drive the rotating disk to rotate synchronously. The rotational motion of the rotating disk is converted into periodic pushing and pulling of all the swing seats through the cooperation of its eccentrically set drive shaft and the sliding groove on the swing seat. This causes the swing seats to swing horizontally back and forth around the hinge point, and drives the swing stirring blades fixed on them to swing synchronously. While the main vortex formed by the rotating stirring blades is macroscopically mixed, the reciprocating oscillation trajectory of the oscillating stirring blades intersects with the space, strongly disturbing the fluid in the near-wall area and dead flow corners. After the mixing reaction is complete, the wastewater is discharged through the bottom outlet.

[0012] This invention discloses a wastewater treatment device and method for preparing Coptis chinensis toothpaste. In use, wastewater and the pharmaceutical agent enter through the inlet at the top of the mixing tank. After the driving component is activated, it drives the main shaft to rotate, thereby causing multiple rotating stirring blades on it to rotate, forming a main radial and tangential flow field within the mixing tank, achieving large-scale macroscopic mixing and shearing. Simultaneously, the driving component also drives all the swing seats to swing left and right in the horizontal plane around their hinge point with the mounting base. Multiple sets of swing stirring blades fixed to the swing seats reciprocate accordingly, their motion trajectory... The rotating and oscillating agitators are fully interwoven, with the rotating agitators responsible for large-scale stirring, while the oscillating agitators provide additional stirring for areas near the tank wall and slow-flowing corners that are difficult for the rotating agitators to reach. This forces the wastewater to be fully mixed throughout the entire tank, leaving no dead zones. For complex wastewater such as Coptis chinensis toothpaste wastewater, which is viscous, prone to sedimentation, and contains colloids and particles, this combined action can very effectively break up clumps of material, allowing the reagent to come into rapid and uniform contact with the pollutants. At the same time, the strong agitation can also prevent particles from settling at the bottom of the tank or sticking to the tank wall. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the wastewater treatment equipment for preparing Coptis chinensis toothpaste according to the first embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of the spindle mounting structure according to the first embodiment of the present invention.

[0016] Figure 3 This is a schematic diagram of the installation structure of the driven gear according to the first embodiment of the present invention.

[0017] Figure 4 This is a schematic diagram of the installation structure of the drive shaft according to the first embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the cleaning component according to the second embodiment of the present invention.

[0019] Figure 6 This is a flowchart of the wastewater treatment method for preparing Coptis chinensis toothpaste according to the present invention.

[0020] In the diagram: 101-mixing tank, 102-main shaft, 103-rotating stirring blade, 104-mounting base, 105-swinging base, 106-swinging stirring blade, 107-drive component, 108-rotary motor, 109-drive gear, 110-rotating disc, 111-driven gear, 112-drive shaft, 113-slide groove, 114-disc body, 115-threaded rod, 116-moving base, 117-water inlet, 118-water outlet, 201-cleaning component, 202-rotary joint, 203-water supply pipe, 204-spray hole. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0022] First embodiment: Please see Figures 1 to 4 ,in Figure 1 This is a schematic diagram of the overall structure of the wastewater treatment equipment used in the preparation of Coptis chinensis toothpaste. Figure 2 This is a schematic diagram of the spindle mounting structure. Figure 3 This is a schematic diagram of the installation structure of the driven gear. Figure 4 This is a schematic diagram of the drive shaft mounting structure.

[0023] This invention provides a wastewater treatment device and method for the preparation of Coptis chinensis toothpaste, including a mixing tank 101, a main shaft 102, a rotating stirring blade 103, a mounting base 104, a swing base 105, a swing stirring blade 106, and a driving component 107. The driving component 107 includes a rotary motor 108, a drive gear 109, a rotating disk 110, a driven gear 111, and a drive shaft 112. The swing base 105 has a sliding groove 113. By rotating the rotating stirring blade 103 and swinging the swing stirring blade 106, the mixing effect of wastewater and the agent is improved. It is understood that the aforementioned solution can be used to treat wastewater generated during toothpaste preparation.

[0024] In this specific embodiment, the main shaft 102 is rotatably connected to the mixing tank 101 and located inside the mixing tank 101; the rotating stirring blade 103 is fixedly connected to the main shaft 102 and communicates with the main shaft 102; the mounting base 104 is fixedly connected to the mixing tank 101 and located inside the mixing tank 101; the swing base 105 is rotatably connected to the mounting base 104 and disposed on the mounting base 104; the swing stirring blade 106 is fixedly connected to the swing base 105 and located on one side of the swing base 105; and the driving component 107 is disposed on the... The mixing tank 101 has an inlet 117 at the top and an outlet 118 at the bottom. Multiple rotating stirring blades 103 are provided on both sides of the main shaft 102. Multiple swing seats 105 are provided and evenly distributed inside the mixing tank 101. Multiple swing stirring blades 106 are provided on each swing seat 105. The swing stirring blades 106 and rotating stirring blades 103 are arranged alternately. The driving component 107 drives the main shaft 102 to rotate and simultaneously drives the swing seats 105 to swing left and right.

[0025] In use, wastewater and reagents are introduced through the inlet 117 at the top of the mixing tank 101. After the drive component 107 is activated, it drives the main shaft 102 to rotate, which in turn drives the multiple rotating stirring blades 103 on it to rotate, forming a main radial and tangential flow field inside the mixing tank 101 to achieve large-scale macroscopic mixing and shearing. At the same time, the drive component 107 also drives all the swing seats 105 to swing left and right around their hinge point with the mounting base 104 in the horizontal plane. The multiple sets of swing stirring blades 106 fixed on the swing seats 105 swing back and forth accordingly, and their motion trajectory The rotating stirring blades 103 and the oscillating stirring blades 106 are fully interleaved. The rotating stirring blades 103 are responsible for large-scale stirring, while the oscillating stirring blades 106 provide additional stirring for areas near the barrel wall and slow-flowing corners that are difficult to reach by the rotating stirring blades. This forces the wastewater in all parts of the barrel to be fully mixed, without any dead corners. For complex wastewater such as Coptis chinensis toothpaste wastewater, which is viscous, easy to settle, and contains colloids and particles, this combined action can very effectively break up clumps of substances, allowing the agent to come into rapid and uniform contact with the pollutants. At the same time, the strong disturbance can also prevent particles from settling at the bottom of the barrel or sticking to the barrel wall.

[0026] The rotary motor 108 is connected to the mixing tank 101 and located on one side of the mixing tank 101, and the output end of the rotary motor 108 is connected to the main shaft 102; the drive gear 109 is fixedly connected to the main shaft 102 and sleeved on the main shaft 102; the rotary motor 108 drives the main shaft 102 to rotate, thereby causing the main shaft 102 to drive the rotary stirring blade 103 to rotate.

[0027] Secondly, the rotating disk 110 is rotatably connected to the mixing tank 101 and is located inside the mixing tank 101; the driven gear 111 is fixedly connected to the rotating disk 110, and is sleeved on the rotating disk 110, and meshes with the driving gear 109; the drive shaft 112 is fixedly connected to the rotating disk 110 and is located on the side of the rotating disk 110 near the swing seat 105.

[0028] Meanwhile, the slide groove 113 is disposed on the side of the swing seat 105 near the drive shaft 112, and the slide groove 113 cooperates with the drive shaft 112, with the drive shaft 112 extending into the interior of the slide groove 113.

[0029] The drive shaft 112 is eccentrically mounted on the rotating disk 110. When the main shaft 102 rotates, it drives the drive gear 109 to rotate, causing the drive gear 109 to drive the driven gear 111 meshing with it to rotate. The driven gear 111 drives the corresponding rotating disk 110 to rotate, which in turn drives the drive shaft 112 to rotate. The drive shaft 112 extends into the slide groove 113 and can slide within the slide groove 113. When the rotating disk 110 rotates, the eccentrically mounted drive shaft 112 makes a circular motion around the center of the rotating disk 110. This circular motion is transformed into a periodic pushing and pulling action on the swing seat 105 through the continuous contact and interaction between the drive shaft 112 and the inner wall of the slide groove 113, thereby forcing the swing seat 105 to swing back and forth with its hinge point with the mounting base 104 as the axis.

[0030] Additionally, the rotating disk 110 includes a disk body 114, a threaded rod 115, and a movable seat 116. The disk body 114 is rotatably connected to the mixing tank 101 and fixedly connected to the driven gear 111; the threaded rod 115 is rotatably connected to the disk body 114; the movable seat 116 is threadedly connected to the threaded rod 115, slidably connected to the disk body 114, and fixedly connected to the drive shaft 112; the mixing tank 101 has an opening at the top, and the threaded rod 115 has a knob for adjusting the oscillation amplitude of the oscillating stirring blade 106. Personnel open the opening at the top of the mixing tank 101, then turn the knob to rotate the threaded rod 115, causing the threaded rod 115 to drive the moving seat 116 to move, which in turn drives the drive shaft 112 to move, thereby changing the radial distance of the drive shaft 112 relative to the center of the disc 114. When the eccentricity increases, the left and right swing amplitude of the swing seat 105 increases accordingly; conversely, when the eccentricity decreases, the swing amplitude decreases accordingly. This allows operators to flexibly adjust the intensity and range of action of the swing stirring according to the actual wastewater viscosity, solid content, and treatment process stage.

[0031] When using the wastewater treatment equipment for the preparation of Coptis chinensis toothpaste in this embodiment, the operator first puts the wastewater to be treated and the required treatment agents into the mixing tank 101 through the inlet 117. Then, the rotary motor 108 is started to drive the main shaft 102 to rotate. The main shaft directly drives the rotating stirring blades 103 to rotate at high speed, forming a strong main vortex in the tank, which rapidly and macroscopically mixes and shears the wastewater and agents. On the other hand, the rotation of the main shaft 102 drives the rotating disk 110 to rotate synchronously through the meshing of the driving gear 109 and the driven gear 111. Since the drive shaft 112 is eccentrically set on the rotating disk 110, its circumferential motion is converted into a periodic reciprocating pushing and pulling force on each swing seat 105 through the sliding cooperation with the sliding groove 113 of the swing seat 105. This forces all swing seats 105 to swing left and right with their hinge points as the axis, and drives the swing stirring blades 106 fixed on them to swing synchronously. At this time, the high-speed rotating stirring blades 103 and the reciprocating oscillating stirring blades 106 fully intersect and interfere in the spatial trajectory. The rotating flow field provides the main conveying capacity, while the oscillating disturbance precisely acts on the traditional stirring dead zone such as the near wall area and corners, strongly entraining the fluid in this area to participate in the circulation, forming a complex three-dimensional chaotic mixing field, effectively dispersing colloidal and particulate agglomerates, ensuring molecular-level contact between the reagent and pollutants, and achieving optimal control of mixing effect and energy consumption. Finally, the fully mixed wastewater is discharged through the bottom outlet 118 and enters the subsequent treatment unit.

[0032] Second embodiment: Based on the first embodiment, please refer to Figure 5. Figure 5This is a schematic diagram of the cleaning component in the second embodiment. The wastewater treatment equipment for preparing Coptis chinensis toothpaste in this embodiment also includes a cleaning component 201, which includes a rotary joint 202 and a water supply pipe 203.

[0033] In this specific embodiment, the rotary joint 202 is connected to the mixing tank 101 and the main shaft 102, and is located at the bottom of the mixing tank 101; the water supply pipe 203 is connected to the rotary joint 202 and communicates with the rotary joint 202.

[0034] The water spray hole 204 is disposed on the stirring blade and penetrates the stirring blade.

[0035] The water supply pipe 203 is connected to an external high-pressure water supply pipeline. The main shaft 102 has an axial water supply channel inside. The rotating stirring blade 103 is hollow inside and connected to the water supply channel. When the equipment needs to be cleaned, external high-pressure water (which can be mixed with cleaning agent) enters the water supply channel inside the main shaft 102 through the rotary joint 202, and is then transported to the inside of all stirring blades, and finally sprayed out from the spray hole 204. The rotation of the rotating stirring blade 103 forms a rotating rinsing surface covering the barrel wall. Its spray direction is mainly directed towards the dead corners with complex mechanical structures and easy accumulation of dirt, such as the mounting base 104 and the hinge area of ​​the swing base 105. The high-pressure water flow can directly impact and peel off the dirt and deposits attached to the barrel wall and other component surfaces.

[0036] On the other hand, please see Figure 6 The present invention also includes a wastewater treatment method for the preparation of Coptis chinensis toothpaste, comprising the following steps: S1: Add the Coptis chinensis toothpaste wastewater and the required water treatment agents quantitatively through the inlet at the top of the mixing tank.

[0037] S2: Start the rotary motor to drive the main shaft and the multi-layer rotary stirring blades fixed on it to rotate at a constant speed; at the same time, the driven gear meshed with the main shaft is driven by the drive gear fixed to the main shaft to drive the rotating disk to rotate synchronously.

[0038] S3: The rotational motion of the rotating disk is converted into periodic pushing and pulling of all the swing seats through the cooperation of its eccentrically set drive shaft and the sliding groove on the swing seat. This causes the swing seats to swing horizontally back and forth around the hinge point, and drives the swing stirring blades fixed on them to swing synchronously.

[0039] S4: While the main swirling flow formed by the rotating stirring blades is macroscopically mixed, the reciprocating oscillation trajectory of the oscillating stirring blades intersects with it in space, strongly disturbing the fluid in the near-wall area and dead flow corners.

[0040] S5: After the mixing reaction is complete, the wastewater is discharged through the bottom outlet.

[0041] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A wastewater treatment device for the preparation of Coptis chinensis toothpaste, characterized in that, The device includes a mixing tank, a main shaft, a rotating stirring blade, a mounting base, a swing base, a swing stirring blade, and a drive component. The main shaft is rotatably connected to the mixing tank and located inside the mixing tank. The rotating stirring blade is fixedly connected to and communicates with the main shaft. The mounting base is fixedly connected to the mixing tank and located inside the mixing tank. The swing base is rotatably connected to the mounting base and disposed on the mounting base. The swing stirring blade is fixedly connected to the swing base and located on one side of the swing base. The drive component is disposed on the mixing tank.

2. The wastewater treatment equipment for the preparation of Coptis chinensis toothpaste as described in claim 1, characterized in that, The driving component includes a rotary motor and a drive gear. The rotary motor is connected to the mixing tank and located on one side of the mixing tank, and the output end of the rotary motor is connected to the main shaft. The drive gear is fixedly connected to the main shaft and is sleeved on the main shaft.

3. The wastewater treatment equipment for the preparation of Coptis chinensis toothpaste as described in claim 2, characterized in that, The driving component further includes a rotating disk, a driven gear, and a drive shaft. The rotating disk is rotatably connected to the mixing tank and is located inside the mixing tank. The driven gear is fixedly connected to the rotating disk, sleeved on the rotating disk, and meshes with the driving gear. The drive shaft is fixedly connected to the rotating disk and is located on the side of the rotating disk near the swing seat.

4. The wastewater treatment equipment for the preparation of Coptis chinensis toothpaste as described in claim 3, characterized in that, The swing seat has a groove, which is disposed on the side of the swing seat near the drive shaft, and the groove cooperates with the drive shaft, with the drive shaft extending into the groove.

5. The wastewater treatment equipment for preparing Coptis chinensis toothpaste as described in claim 1, characterized in that, The wastewater treatment equipment for preparing Coptis chinensis toothpaste also includes a cleaning component, which includes a rotary joint and a water supply pipe. The rotary joint is connected to the mixing tank and the main shaft, and is located at the bottom of the mixing tank. The water supply pipe is connected to the rotary joint and communicates with it.

6. The wastewater treatment equipment for preparing Coptis chinensis toothpaste as described in claim 5, characterized in that, The rotating stirring blade has water spray holes, which are disposed on the stirring blade and penetrate through the stirring blade.

7. A method for treating wastewater from the preparation of Coptis chinensis toothpaste, comprising using the wastewater treatment equipment for the preparation of Coptis chinensis toothpaste as described in any one of claims 1-6, characterized in that, Includes the following steps: The wastewater from the Coptis chinensis toothpaste and the required water treatment agents are quantitatively added through the inlet at the top of the mixing tank; Start the rotary motor to drive the main shaft and the multi-layered rotating stirring blades fixed on it to rotate at a constant speed; at the same time, the driven gear meshing with the main shaft is driven by the driving gear fixed to the main shaft to drive the rotating disk to rotate synchronously. The rotational motion of the rotating disk is converted into periodic pushing and pulling of all the swing seats through the cooperation of its eccentrically set drive shaft and the sliding groove on the swing seat. This causes the swing seats to swing horizontally back and forth around the hinge point, and drives the swing stirring blades fixed on them to swing synchronously. While the main vortex formed by the rotating stirring blades is macroscopically mixed, the reciprocating oscillation trajectory of the oscillating stirring blades intersects with the space, strongly disturbing the fluid in the near-wall area and dead flow corners. After the mixing reaction is complete, the wastewater is discharged through the bottom outlet.

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