Solution neutralizing device for chemical wastewater treatment and use method thereof

Abstract

The invention relates to the field of chemical wastewater treatment, and particularly discloses a solution neutralizing device for chemical wastewater treatment and a use method thereof.The solution neutralizing device comprises a stirring mechanism, a water inlet mechanism, a water outlet mechanism, a water outlet mechanism, a water outlet mechanism, a water outlet mechanism and a water outlet mechanism, and the stirring mechanism comprises an outer supporting tank assembly, a stirring tank assembly and an upper cover assembly; the stirring assembly is mounted on the upper cover assembly; the liquid discharging mechanism comprises a driving rod assembly fixedly connected with the stirring assembly; chemical wastewater and a solution for neutralization are poured into the stirring tank assembly, and the stirring assembly is used for stirring, so that the mixing of the two solutions can be greatly accelerated, and the neutralization reaction is quicker and more sufficient; the rotating plate assembly is controlled to move up and down through the lifting assembly, automation of liquid drainage is achieved, after the reaction is completed, the rotating plate assembly descends to open the liquid drainage channel, manual intervention is not needed, the operation process is simplified, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the field of chemical wastewater treatment, and more specifically, it is a solution neutralization device for chemical wastewater treatment and its usage method. Background Art

[0002] Chemical wastewater treatment refers to the process of purifying the wastewater generated during the production process of chemical plants to reduce its environmental pollution and potentially achieve the reuse of the wastewater. This treatment process usually includes multiple steps aimed at gradually removing harmful substances from the wastewater to meet the discharge standards or the water quality requirements for reuse.

[0003] The neutralization reaction plays an important role in the process of chemical wastewater treatment. Its basic principle is to make the H⁺ in acidic wastewater interact with the externally added OH⁻, or make the OH⁻ in alkaline wastewater interact with the externally added H⁺, generating weakly dissociated water molecules and simultaneously generating other soluble or insoluble salts, thereby eliminating their harmful effects.

[0004] Through the neutralization reaction, the pH value of the wastewater can be adjusted to reach a neutral or near-neutral range, creating favorable conditions for subsequent treatment steps; through the neutralization reaction, harmful substances can be removed. Through appropriate treatment means such as precipitation and filtration, these harmful substances can be removed from the wastewater, thereby reducing the toxicity and pollution of the wastewater; through the neutralization reaction, the efficiency of wastewater treatment can be improved by converting the forms and properties of these pollutants into forms that are easy to treat or remove, thereby improving the efficiency of wastewater treatment; through the neutralization reaction, the treatment cost can be reduced, and by recycling substances such as salts generated by the neutralization reaction, the recycling of resources can also be achieved.

[0005] During the wastewater treatment process, traditional mixing methods cannot quickly and evenly mix chemical wastewater and the neutralization solution, resulting in limited neutralization reaction rate. At the same time, the drainage often requires manual operation, and the efficiency during the drainage process is relatively low. Summary of the Invention

[0006] In order to solve the above technical problems, the present invention provides a solution neutralization device for chemical wastewater treatment and its usage method to solve the problems in the prior art that traditional mixing methods cannot quickly and evenly mix chemical wastewater and the neutralization solution, resulting in limited neutralization reaction rate, and at the same time, the drainage often requires manual operation and the efficiency during the drainage process is relatively low.

[0007] A solution neutralization device for chemical wastewater treatment includes:

[0008] A stirring mechanism, including an outer support tank assembly, a stirring tank assembly slidably and snap-fitted on the outer support tank assembly, an upper cover assembly installed on the stirring tank assembly, and a stirring assembly installed on the upper cover assembly;

[0009] The liquid discharge mechanism includes a driving rod assembly fixedly connected to the stirring assembly, a rotating plate assembly slidably embedded on the outside of the driving rod assembly, and a lifting assembly for driving the rotating plate assembly to move up and down. The rotating plate assembly can seal the stirring tank assembly.

[0010] Preferably, the outer support tank assembly includes an outer support tank body, a limit plate is fixedly connected to the interior of the outer support tank body, a group of guide rods are fixedly connected to the interior of the outer support tank body, and a drain port is also fixedly connected to the outer side of the outer support tank body.

[0011] Preferably, the stirring tank assembly comprises a stirring tank body, and a plurality of drainage holes are provided at the bottom of the stirring tank body.

[0012] Preferably, the upper cover assembly comprises an upper cover plate, and a mounting frame is fixedly mounted on the upper cover plate.

[0013] Preferably, the stirring assembly includes a motor, a stirring rod and a belt, and a stirring blade is fixedly connected to the outer side of the bottom of the stirring rod.

[0014] Preferably, the upper cover plate is fixedly mounted on the outer support tank body, the stirring tank body is limitedly slidably embedded on the outer support tank body and the bottom is just located on the limit plate, the stirring rod is mounted on the mounting frame through a bearing, and the motor 1 and the stirring rod are driven by a belt.

[0015] Preferably, the driving rod assembly comprises a connecting rod fixedly connected to the stirring rod, and a latch tooth 1 is fixedly connected to the bottom of the connecting rod.

[0016] Preferably, the rotating plate assembly includes a rotating disk, the upper end of the rotating disk is fixedly connected to a liquid baffle plate, the outer side of the liquid baffle plate is fixedly connected to a push bar, the bottom of the rotating disk is fixedly connected to a connecting frame, and the bottom of the connecting frame is also fixedly connected to a second gear; the lifting assembly includes a second motor and a guide block, the output end of the second motor is fixedly connected to a gear, and the outer side of the guide block is fixedly connected to a rack.

[0017] Preferably, the rotating disk limit sliding card is embedded in the interior of the outer support tank body, the liquid baffle plate can be embedded in the limit plate and seal the drainage hole, the guide block is rotatably installed on the outside of the connecting frame through a bearing, the second motor is fixedly installed in the outer support tank body, the gear and the rack are meshed with each other, the guide block limit sliding card is embedded in the guide rod, and the second tooth can be embedded in the first tooth.

[0018] A method for using a solution neutralization device comprises the following steps:

[0019] Step 1: According to the properties of the wastewater and the required treatment effect, prepare an appropriate amount of chemical wastewater and the solution for neutralization, ensuring that the quality and quantity of the two solutions meet the treatment requirements;

[0020] Step 2: Open the feeding port of the stirring tank assembly simultaneously. Pump the chemical wastewater into the stirring tank in advance with a metering pump. The neutralizing liquid is added slowly into the stirring tank through the metering pump at a certain ratio after normal stirring, taking care to avoid splashing of the solution. After the feeding is completed, quickly close the feeding port of the stirring tank assembly to prevent foreign impurities from entering and the solution from volatilizing;

[0021] Step 3: Turn on the power of the stirring assembly and adjust it to an appropriate stirring speed so that the stirring blades rotate in the stirring tank to fully agitate the solution. During the stirring process, pay attention to observing the reaction situation and stirring effect of the solution to ensure the smooth progress of the neutralization reaction;

[0022] Step 4: During the stirring process, continuously observe the changes in the color, smell, temperature, and pH value of the solution, as well as whether there are phenomena of gas bubbles and precipitation in the stirring tank;

[0023] Step 5: When the neutralization reaction is completed and the solution meets the treatment requirements, prepare for the liquid discharge operation. Open the control switch of the lifting assembly to make the rotating plate assembly slowly descend along the driving rod assembly. During the descent, the rotating plate assembly gradually opens the liquid discharge port of the stirring tank assembly;

[0024] Step 6: When the rotating plate assembly descends to the limit position, it will be driven by the stirring assembly to rotate in the stirring tank. The centrifugal force generated by the rotation can completely push out the remaining solution from the stirring tank assembly and the outer support tank assembly and discharge it into the designated collection container.

[0025] Compared with the prior art, the present invention has the following beneficial effects: By pouring the chemical wastewater and the solution for neutralization into the stirring tank assembly and using the stirring assembly for agitation, the mixing between the two solutions can be greatly accelerated, thus making the neutralization reaction more rapid and complete; By controlling the up and down movement of the rotating plate assembly through the lifting assembly, the automation of liquid discharge is achieved. When the reaction is completed, the rotating plate assembly descends to open the liquid discharge channel without manual intervention, simplifying the operation process and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is a sectional view of the present invention;

[0028] Figure 3 is a schematic diagram of the exploded structure of the present invention;

[0029] Figure 4Schematic structural diagram of the stirring assembly of the present invention;

[0030] Figure 5 Schematic structural diagram of the liquid discharge mechanism of the present invention;

[0031] Figure 6 Schematic structural diagram of the second engaging tooth of the present invention.

[0032] In the figure: 1. Stirring mechanism; 11. Outer support tank assembly; 111. Outer support tank body; 112. Limit plate; 113. Guide rod; 114. Drainage port; 12. Stirring tank assembly; 121. Stirring tank body; 122. Drainage hole; 13. Upper cover assembly; 131. Upper cover plate; 132. Mounting frame; 14. Stirring assembly; 141. First motor; 142. Stirring rod; 143. Belt; 144. Stirring blade; 2. Liquid discharge mechanism; 21. Driving rod assembly; 211. Connecting rod; 212. First engaging tooth; 22. Rotating plate assembly; 221. Rotating disk; 222. Liquid blocking plate; 223. Pushing strip; 224. Connecting frame; 225. Second engaging tooth; 23. Lifting assembly; 231. Second motor; 232. Guide block; 233. Gear; 234. Rack. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] As Figures 1 to 6 shown:

[0035] Embodiment 1: The present invention provides a solution neutralization device for chemical wastewater treatment, including:

[0036] A stirring mechanism 1, including an outer support tank assembly 11, a stirring tank assembly 12 slidably and snap-fitted on the outer support tank assembly 11, an upper cover assembly 13 installed on the stirring tank assembly 12, and a stirring assembly 14 installed on the upper cover assembly 13;

[0037] A liquid discharge mechanism 2, including a driving rod assembly 21 fixedly connected to the stirring assembly 14, a rotating plate assembly 22 slidably and snap-fitted outside the driving rod assembly 21, a lifting assembly 23 for driving the rotating plate assembly 22 to move up and down, and the rotating plate assembly 22 can block the stirring tank assembly 12;

[0038] When chemical wastewater and the solution for neutralization are poured into the interior of the stirring tank assembly 12 at the same time, turning on the stirring assembly 14 can stir the solution so that the neutralization reaction occurs quickly. When the reaction is completed, controlling the lifting assembly 23 to work can make the rotating plate assembly 22 descend so that the solution can be discharged. When the rotating plate assembly 22 descends to the extreme position, the stirring assembly 14 can drive the rotating plate assembly 22 to rotate, so that the solution is pushed out of the outer support tank assembly 11.

[0039] Specifically, the outer support tank assembly 11 includes an outer support tank body 111, a limit plate 112 is fixedly connected inside the outer support tank body 111, a group of guide rods 113 are fixedly connected inside the outer support tank body 111, and a drain port 114 is also fixedly connected to the outer side of the outer support tank body 111; wherein the limit plate 112 can play a supporting role, and the drain port 114 can facilitate the discharge of the solution;

[0040] The stirring tank assembly 12 includes a stirring tank body 121, and a plurality of drainage holes 122 are provided at the bottom of the stirring tank body 121; wherein, the plurality of drainage holes 122 can facilitate the discharge of the solution in the stirring tank body 121;

[0041] The upper cover assembly 13 includes an upper cover plate 131, and a mounting frame 132 is fixedly mounted on the upper cover plate 131;

[0042] The stirring assembly 14 includes a motor 141, a stirring rod 142 and a belt 143, and a stirring blade 144 is fixedly connected to the outer side of the bottom of the stirring rod 142; wherein, the operation of the motor 141 can drive the belt 143 to work through the pulley 1, and the operation of the belt 143 can enable the pulley 2 to drive the stirring rod 142 to rotate on the mounting frame 132, and the rotation of the stirring rod 142 can cause the stirring blade 144 to rotate, and the rotation of the stirring blade 144 can cause the solution in the stirring tank body 121 to be stirred.

[0043] Specifically, the upper cover plate 131 is fixedly mounted on the outer support tank body 111, the stirring tank body 121 is limitedly slidably embedded on the outer support tank body 111 and the bottom is just located on the limit plate 112, the stirring rod 142 is installed on the mounting frame 132 through a bearing, and the motor 141 and the stirring rod 142 are driven by a belt 143.

[0044] As can be seen from the above, controlling the motor 141 to work can make the belt 143 drive the stirring blade 144 to work, and the stirring blade 144 can stir the solution in the stirring tank body 121, so that the neutralization reaction is faster and more complete. The upper cover plate 131 and the mounting frame 132 can facilitate the installation and fixation of the stirring component 14.

[0045] Embodiment 2: This embodiment is basically the same as the previous one, except that the driving rod assembly 21 includes a connecting rod 211 fixedly connected to the stirring rod 142, and a first engaging tooth 212 is fixedly connected to the bottom of the connecting rod 211.

[0046] Specifically, the rotating plate assembly 22 includes a rotating disk 221, a liquid blocking plate 222 is fixedly connected to the upper end of the rotating disk 221, a pushing bar 223 is fixedly connected to the outside of the liquid blocking plate 222, a connecting frame 224 is fixedly connected to the bottom of the rotating disk 221, and a second engaging tooth 225 is also fixedly connected to the bottom of the connecting frame 224; the lifting assembly 23 includes a second motor 231 and a guiding block 232, an output end of the second motor 231 is fixedly connected to a gear 233, and a rack 234 is fixedly connected to the outside of the guiding block 232.

[0047] Specifically, the rotating disk 221 is limited and slidably engaged inside the outer support tank body 111, the liquid blocking plate 222 can be engaged on the limiting plate 112 to block the liquid discharge holes 122, the guiding block 232 is rotatably installed outside the connecting frame 224 through a bearing, the second motor 231 is fixedly installed inside the outer support tank body 111, the gear 233 and the rack 234 are meshed with each other, the guiding block 232 is limited and slidably engaged on the guiding rod 113, and the second engaging tooth 225 can be engaged on the first engaging tooth 212.

[0048] As can be seen from the above, controlling the second motor 231 to work can cause the gear 233 to drive the rack 234 to work. The working of the rack 234 can cause the guiding block 232 to move along the guiding rod 113. The movement of the guiding block 232 will cause the rotating disk 221 to drive the liquid blocking plate 222 to disengage from the limiting plate 112. At the same time, the solution in the stirring tank body 121 will be discharged from a plurality of liquid discharge holes 122 and reach the rotating disk 221. When the guiding block 232 continues to descend, the second engaging tooth 225 can follow the movement. After the second engaging tooth 225 is engaged on the first engaging tooth 212, the rotating stirring rod 142 will drive the connecting rod 211 to rotate, and at the same time cause the first engaging tooth 212 to rotate. The rotation of the first engaging tooth 212 will cause the second engaging tooth 225 to drive the connecting frame 224 to rotate. The rotation of the connecting frame 224 will cause the rotating disk 221 to rotate. The rotation of the rotating disk 221 will cause the pushing bar 223 to rotate. The rotation of the pushing bar 223 will cause the solution to be quickly pushed and discharged quickly from the liquid discharge port 114, improving the liquid discharge speed.

[0049] Embodiment 3: This embodiment is basically the same as the previous one, except that a using method of a solution neutralizing device includes the following steps:

[0050] Step 1: According to the properties of the wastewater and the required treatment effect, prepare an appropriate amount of chemical wastewater and the solution for neutralization, and ensure that the quality and quantity of the two solutions meet the treatment requirements;

[0051] Step 2: Open the feeding port of the stirring tank assembly simultaneously, and use a metering pump to pump the chemical wastewater into the stirring tank in advance. After normal stirring, the neutralizing solution is slowly added into the stirring tank at a certain ratio through the metering pump. Pay attention to avoid splashing of the solution. After the feeding is completed, quickly close the feeding port of the stirring tank assembly to prevent foreign impurities from entering and the solution from volatilizing.

[0052] Step 3: Turn on the power of the stirring assembly and adjust it to an appropriate stirring speed so that the stirring blades rotate in the stirring tank to fully agitate the solution. During the stirring process, pay attention to observing the reaction situation and stirring effect of the solution to ensure the smooth progress of the neutralization reaction.

[0053] Step 4: During the stirring process, continuously observe the changes in the color, smell, temperature, and pH value of the solution, as well as whether there are phenomena of bubbles and precipitation in the stirring tank.

[0054] Step 5: When the neutralization reaction is completed and the solution meets the treatment requirements, prepare for the liquid discharge operation. Turn on the control switch of the lifting assembly to make the rotating plate assembly slowly descend along the driving rod assembly. During the descent, the rotating plate assembly gradually opens the liquid discharge port of the stirring tank assembly.

[0055] Step 6: When the rotating plate assembly descends to the limit position, it will be driven by the stirring assembly to rotate in the stirring tank. The centrifugal force generated by the rotation can completely push out the remaining solution from the stirring tank assembly and the outer support tank assembly and discharge it into the designated collection container.

[0056] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0057] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "plural" is two or more unless otherwise specifically defined.

[0058] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] In the present invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0060] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0061] In the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0062] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A solution neutralization device for chemical wastewater treatment, characterized in that: include: The stirring mechanism (1) comprises an outer supporting tank assembly (11), a stirring tank assembly (12) slidably engaged with the outer supporting tank assembly (11), an upper cover assembly (13) mounted on the stirring tank assembly (12), and a stirring assembly (14) mounted on the upper cover assembly (13); The liquid discharge mechanism (2) comprises a driving rod assembly (21) fixedly connected to the stirring assembly (14), a rotating plate assembly (22) slidably engaged with the outside of the driving rod assembly (21), and a lifting assembly (23) for driving the rotating plate assembly (22) to move up and down, wherein the rotating plate assembly (22) can seal the stirring tank assembly (12).

2. A solution neutralization device for treating chemical wastewater as claimed in claim 1, characterized in that: The outer support tank assembly (11) comprises an outer support tank body (111), a limit plate (112) is fixedly connected inside the outer support tank body (111), a group of guide rods (113) are fixedly connected inside the outer support tank body (111), and a liquid discharge port (114) is also fixedly connected to the outside of the outer support tank body (111).

3. A solution neutralization device for treating chemical wastewater as claimed in claim 2, characterized in that: The stirring tank assembly (12) comprises a stirring tank body (121), and a plurality of drainage holes (122) are provided at the bottom of the stirring tank body (121).

4. A solution neutralization device for treating chemical wastewater as claimed in claim 3, characterized in that: The upper cover assembly (13) comprises an upper cover plate (131), and a mounting frame (132) is fixedly mounted on the upper cover plate (131).

5. A solution neutralization device for treating chemical wastewater as claimed in claim 4, characterized in that: The stirring assembly (14) comprises a motor (141), a stirring rod (142) and a belt (143), and a stirring blade (144) is fixedly connected to the outer side of the bottom of the stirring rod (142).

6. A solution neutralization device for treating chemical wastewater as claimed in claim 5, characterized in that: The upper cover plate (131) is fixedly mounted on the outer support tank body (111); the stirring tank body (121) is limitedly slidably embedded on the outer support tank body (111) and its bottom is just located on the limit plate (112); the stirring rod (142) is mounted on the mounting frame (132) via a bearing; and the motor 1 (141) and the stirring rod (142) are driven by a belt (143).

7. A solution neutralization device for treating chemical wastewater as claimed in claim 5, characterized in that: The driving rod assembly (21) comprises a connecting rod (211) fixedly connected to the stirring rod (142), and a latching tooth 1 (212) is fixedly connected to the bottom of the connecting rod (211).

8. A solution neutralization device for treating chemical wastewater as claimed in claim 7, characterized in that: The rotating plate assembly (22) comprises a rotating disk (221), the upper end of the rotating disk (221) is fixedly connected to a liquid baffle plate (222), the outer side of the liquid baffle plate (222) is fixedly connected to a push bar (223), the bottom of the rotating disk (221) is fixedly connected to a connecting frame (224), and the bottom of the connecting frame (224) is also fixedly connected to a second latching tooth (225); the lifting assembly (23) comprises a second motor (231) and a guide block (232), the output end of the second motor (231) is fixedly connected to a gear (233), and the outer side of the guide block (232) is fixedly connected to a rack (234).

9. A solution neutralization device for treating chemical wastewater as claimed in claim 8, characterized in that: The rotating disk (221) is limitedly slidably embedded in the interior of the outer supporting tank body (111); the liquid blocking plate (222) can be embedded in the limiting plate (112) and block the liquid discharge hole (122); the guide block (232) is rotatably mounted on the outer side of the connecting frame (224) through a bearing; the second motor (231) is fixedly mounted in the outer supporting tank body (111); the gear (233) and the rack (234) are meshed with each other; the guide block (232) is limitedly slidably embedded in the guide rod (113); and the second latching tooth (225) can be latched on the first latching tooth (212).

10. A method for using a solution neutralization device, characterized in that: The following steps are involved: Step 1: Prepare an appropriate amount of chemical wastewater and solution for neutralization according to the nature of the wastewater and the required treatment effect, and ensure that the quality and quantity of the two solutions meet the treatment requirements; Step 2: Open the feeding port of the mixing tank assembly at the same time, pump the chemical wastewater into the mixing tank in advance with a metering pump, and slowly add the neutralizing liquid into the mixing tank through a metering pump after normal stirring in a certain proportion. Be careful to avoid splashing of the solution. After the feeding is completed, quickly close the feeding port of the mixing tank assembly to prevent external impurities from entering and the solution from volatilizing; Step 3: Turn on the power of the stirring component, adjust to an appropriate stirring speed, make the stirring blade rotate in the stirring tank, and fully stir the solution. During the stirring process, pay attention to observe the reaction of the solution and the stirring effect to ensure that the neutralization reaction proceeds smoothly; Step 4: During the stirring process, continue to observe the changes in the solution's color, odor, temperature, and pH value, as well as whether bubbles or precipitation are generated in the stirring tank; Step 5: When the neutralization reaction is completed and the solution meets the treatment requirements, the liquid discharge operation is ready to be performed. The control switch of the lifting assembly is turned on to slowly lower the rotating plate assembly along the driving rod assembly. During the lowering process, the rotating plate assembly gradually opens the liquid discharge port of the stirring tank assembly. Step 6: When the rotating plate assembly descends to the limit position, the rotating plate assembly will rotate in the stirring tank under the drive of the stirring assembly. The centrifugal force generated by the rotation can completely push the residual solution out of the stirring tank assembly and the external support tank assembly and discharge it into the designated collection container.

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