A stirring device for producing sodium hypochlorite disinfectant water

Abstract

The application belongs to the technical field of material mixing, and discloses a stirring equipment for producing sodium hypochlorite disinfectant water, which comprises a mixing tank, an upper baffle is fixedly installed at an upper position inside the mixing tank, a hollow gas guide shaft is rotatably installed at a center position of the upper baffle, a gas storage box is rotatably and sealingly connected to a top end of the hollow gas guide shaft, a columnar cyclone air inlet assembly is connected to a bottom end of the hollow gas guide shaft and extends below the upper baffle, an air inlet connector is installed at a top end of the mixing tank and is in communication with the gas storage box, a circulation assembly for circulating the chlorine gas in the mixing tank is arranged in the gas storage box, a lower stirring assembly is installed at a bottom of the mixing tank, a four-way inclined shaft side mixing assembly is installed on a lower surface of the upper baffle, a double-chain wheel constant-speed transmission structure for power connection is installed between the four-way inclined shaft side mixing assembly and the hollow gas guide shaft, and a rotary driving assembly is installed at the top end of the mixing tank; and the sodium hypochlorite disinfectant water can be efficiently prepared.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sodium hypochlorite preparation and processing equipment, in particular to a stirring equipment for producing sodium hypochlorite disinfectant. BACKGROUND

[0002] The liquid caustic chlorination method for producing sodium hypochlorite disinfectant is a production process based on the reaction of chlorine gas and sodium hydroxide solution. The core of this method is to introduce chlorine gas into the liquid caustic solution to generate sodium hypochlorite and sodium chloride through chemical reaction. During the reaction process, factors such as the concentration of liquid caustic, the supply of chlorine gas, and the reaction temperature play a decisive role in the quality and reaction efficiency of the product. The stirring stage is particularly critical in the entire production process, and the main purpose is to ensure that chlorine gas can be uniformly dispersed in the liquid caustic solution, promote the full contact of reactants, and thus improve the reaction rate and product consistency. The stirring equipment used in this process is usually composed of a motor, a transmission device, a stirring shaft, and an impeller. When designing, the size of the reaction kettle, the physical properties of the liquid, and the introduction method of the gas need to be optimized. When working, the motor drives the stirring shaft to rotate, and the impeller produces strong mechanical stirring action in the liquid, forming a good flow state of the liquid and promoting uniform mixing inside the liquid.

[0003] The Chinese utility model patent with patent application number CN202423102878.4 discloses a stirring equipment for preparing sodium hypochlorite, which includes a stirring tank, a stirring cover is arranged on the top of the stirring tank, a stirring assembly is arranged inside the stirring tank, a cleaning assembly is arranged inside the stirring tank, the stirring assembly includes a connecting frame one, the connecting frame one is fixedly connected to the outside of the stirring tank, a rotating shaft one is rotatably connected inside the connecting frame one, a belt pulley two is fixedly connected to the outside of the rotating shaft one, a square bar is slidably connected inside the rotating shaft one, and the like. Through the cooperation between the motor, the rotating shaft, the rotating shaft one, the square bar, the stirring rod, and the roller, effective coverage is achieved in the horizontal circumferential direction and the vertical direction, greatly improving the uniformity and sufficiency of material mixing. The above-mentioned stirring equipment can stir the sodium hydroxide solution and introduce chlorine gas to prepare sodium hypochlorite.

[0004] For example, the patent application No. CN201820280822.3 discloses a paint stirring device with multiple stirring functions, which comprises a barrel, a rotating shaft and a motor, the rotating shaft is vertically arranged in the barrel, the upper end of the rotating shaft is rotationally connected with the top of the barrel, a driven gear is arranged on the upper end of the rotating shaft outside the top of the barrel, the motor is fixed on the top of the barrel, a driving gear is arranged on the output shaft of the motor, the driving gear and the driven gear are in meshing connection, a stirring blade is arranged on the rotating shaft in the barrel, a gas passage is arranged on the rotating shaft along the central axis, a conical body is fixedly arranged on the bottom end of the rotating shaft, a sealed cavity is arranged in the conical body, the gas passage is in communication with the cavity, and gas holes are arranged on the surface of the conical body and in communication with the cavity.

[0005] Therefore, when the chlorine gas is introduced into the stirring tank, the chlorine gas usually enters the tank body through one or a group of fixed pipelines or injectors, and the opening position is relatively static. At this time, the chlorine gas is limited by the gas inlet point and the diffusion rate, and is always limited in a local position of the tank body. In the local area where the chlorine gas is excessive, the pH value will decrease sharply and become acidic, which makes the newly generated sodium hypochlorite quickly decompose in the acidic environment and may react with the by-product sodium chloride to generate chlorine gas, which not only reduces the yield, but also introduces unnecessary impurities. The area far away from the gas inlet point may not be completely reacted. Such unevenness makes the batch stability of the final product poor and the quality difficult to control. Moreover, the existing stirring device can only perform axial stirring and cannot form a turbulent flow in the vertical direction, which reduces the use effect and further reduces the mixing rate and mixing effect. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a stirring device for producing sodium hypochlorite disinfectant water, which is driven by a rotating drive assembly to work the four-way inclined shaft side mixing assembly at the upper position in the mixing tank, and a part of the rotating power of the four-way inclined shaft side mixing assembly is transmitted to the hollow gas guide shaft through a double chain wheel constant speed transmission structure, chlorine gas enters the gas storage box, the hollow gas guide shaft in the rotating state and the cylindrical cyclone gas inlet assembly through the gas inlet joint, and then the chlorine gas uniformly enters the mixing tank through the cylindrical cyclone gas inlet assembly and reacts with the dilute sodium hydroxide solution, so as to solve the technical problems in the above background art.

[0007] To solve the above technical problems, the present application provides the following technical scheme:

[0008] The utility model provides a kind of stirring equipment for sodium hypochlorite disinfectant water production, including mixing tank, hollow gas guide shaft is rotatably installed at the center position of upper baffle fixedly installed at the upper position inside mixing tank, the top of hollow gas guide shaft is rotatably and sealingly connected with gas storage box, gas storage box is fixedly installed on upper baffle, the bottom of hollow gas guide shaft extends below upper baffle and is communicated with cylinder type rotational flow air intake component, the center position of the top of mixing tank is installed with air inlet connector, the lower end of air inlet connector is fixedly connected with the upper end of gas storage box, circulation component for circulating the chlorine gas in mixing tank is arranged in gas storage box, the bottom of mixing tank is installed with lower stirring assembly that is power connected with the lower end of cylinder type rotational flow air intake component, four-way oblique shaft side mixing component for generating oblique-axis disturbance to material is installed on the lower surface of upper baffle, double-chain wheel constant velocity transmission structure for power connection is installed between four-way oblique shaft side mixing component and hollow gas guide shaft, the top of mixing tank is installed with rotary drive assembly for driving four-way oblique shaft side mixing component to work.

[0009] The following is the further optimization of the technical solution of the present application:

[0010] The four-way oblique shaft side mixing component includes a cross table installed at the center position of the upper baffle, an oblique shaft table fixedly installed at the bottom corner position of the cross table, an oblique stirring shaft rotatably installed on the oblique shaft table, a driven bevel gear fixed to the upper end of the oblique stirring shaft, a driving bevel gear shaft rotatably installed on the cross table near the driven bevel gear, the lower end of the driving bevel gear shaft meshing with the driven bevel gear, and a four-chain wheel transmission mechanism installed between the upper ends of the four driving bevel gear shafts.

[0011] Further optimization: a spiral blade is installed on the outer wall of the end of the oblique stirring shaft away from the driven bevel gear, and the outer diameter of the spiral blade gradually decreases from one end near the oblique shaft table to the other end.

[0012] Further optimization: the rotary drive assembly includes a machine base installed on one side of the top of the mixing tank, a stepper motor installed on the top end of the machine base, and the power output shaft of the stepper motor penetrating through the upper end surface of the mixing tank and fixedly connected with the upper end of one of the driving bevel gear shafts.

[0013] Further optimization: the cylinder type rotational flow air intake component includes an upper hourglass type cylinder cover fixedly installed at the lower end of the hollow gas guide shaft, a gas collecting cylinder installed at the bottom end of the upper hourglass type cylinder cover, a lower hourglass type bottom cover installed at the bottom end of the gas collecting cylinder, a plurality of C-shaped tubes annularly and equidistantly installed on the outer wall of the gas collecting cylinder, and a plurality of nozzles equidistantly installed on the outer wall of the C-shaped tube away from the gas collecting cylinder along the vertical axis direction.

[0014] Further optimization: the circulating assembly comprises a circulating fan fixedly installed in the gas storage box, the air inlet of the circulating fan is communicated with the inner cavity of the gas storage box, the air outlet of the circulating fan is communicated with the hollow gas guide shaft, at least one circulating air inlet is installed on the outer surface of the gas storage box, and a one-way air valve is installed in the circulating air inlet.

[0015] Further optimization: the lower stirring assembly comprises a lower bottom plate fixedly installed at the bottom of the mixing tank, and a bottom shaft is rotatably installed at the center position of the lower bottom plate, and the top end of the bottom shaft is fixedly connected with the bottom end of the lower sand hour type bottom cover.

[0016] Further optimization: at least one side shaft is rotatably installed on the lower bottom plate and located at one side of the bottom shaft, the top end of the side shaft extends upward and is fixedly installed with a stirring paddle, and the lower end of the side shaft penetrates to the lower side of the lower bottom plate and is installed with a belt transmission structure for power connection with the lower end of the bottom shaft.

[0017] Further optimization: an upper vortex impeller is fixedly installed on the outer surface of the hollow gas guide shaft and located above the upper sand hour type cylinder cover; and a lower vortex impeller is fixedly installed on the outer surface of the bottom shaft and located below the lower sand hour type bottom cover.

[0018] Further optimization: at least one manhole is installed on the top end of the mixing tank and located at one side of the rotary driving assembly, the inner end of the manhole is integrally communicated with a material guide pipe, and the lower end of the material guide pipe penetrates to the lower side of the upper partition plate and is communicated with the inner cavity of the mixing tank.

[0019] The above technical scheme has at least the following beneficial effects:

[0020] 1、the rotary driving assembly drives the four-way inclined shaft side mixing assembly working at the upper part of the mixing tank, and part of the rotary power of the four-way inclined shaft side mixing assembly is transmitted to the hollow gas guide shaft through the double chain wheel constant speed transmission structure, the chlorine gas enters the gas storage box and the hollow gas guide shaft in the rotary state and the columnar rotary flow air inlet assembly through the air inlet joint, then the chlorine gas uniformly enters the mixing tank through the columnar rotary flow air inlet assembly and reacts with the dilute sodium hydroxide solution, effectively solving the problems of uneven distribution of chlorine gas in the mixing tank and low gas-liquid reaction efficiency.

[0021] 2、The stirring power generated by the rotating driving assembly and the four-way oblique shaft side mixing assembly drives the columnar cyclone air inlet assembly to rotate, and the chlorine gas is injected into the liquid phase while the columnar cyclone air inlet assembly is in a rotating state, so that the chlorine gas can be more uniformly sent into the liquid phase, thereby forming fine and uniformly distributed bubbles in the reaction area of the mixing tank, increasing the gas-liquid contact area and contact time, effectively avoiding the accumulation of chlorine gas in the local part of the tank, reducing the risk of uneven and local overheating in the subsequent reaction, and improving the product quality and process stability; secondly, the four-way oblique shaft side mixing assembly is responsible for the main stirring, and the stirring angle can generate strong axial and radial flow, effectively eliminating the mixing dead angle of the top and wall of the tank, and the rotating power of the four-way oblique shaft side mixing assembly is accurately transmitted to the hollow gas guide shaft and the columnar cyclone air inlet assembly through the double chain wheel constant speed transmission structure, at this time, the rotating speed of the columnar cyclone air inlet assembly tends to be synchronized with the speed of the four-way oblique shaft side mixing assembly, ensuring that the gas dispersion rate can keep up in time no matter how the speed of the four-way oblique shaft side mixing assembly changes, and the gas dispersion effect and the fluid flow field state are always optimally matched, avoiding uneven gas distribution caused by different speeds.

[0022] 3、The columnar cyclone air inlet assembly in the mixing tank is located in the liquid phase, avoiding the "hot spot" phenomenon of local chlorine gas concentration being too high and temperature rising sharply, fundamentally eliminating the risk of sodium hypochlorite decomposition and chlorine gas escape caused by local high temperature and acidic environment, and in terms of reaction efficiency, the uniformly distributed gas-liquid contact area maximizes the mass transfer and reaction rate of chlorine gas and sodium hydroxide, the reaction is more thorough, almost avoiding the loss of chlorine gas escaping without reaction, improving the raw material utilization rate, and preventing local overreaction or insufficient reaction, and the effective chlorine content of the produced sodium hypochlorite solution is stable. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic diagram of the three-dimensional structure of the embodiment of the present application Figure 1 ;

[0024] Figure 2 is a schematic diagram of the three-dimensional structure of the embodiment of the present application Figure 2 ;

[0025] Figure 3 is a sectional view of the three-dimensional structure in the embodiment of the present application

[0026] Figure 4 is a lateral sectional view of the overall structure in the embodiment of the present application

[0027] Figure 5 is a structural diagram of the four-way oblique shaft side mixing assembly in the embodiment of the present application Figure 1 ;

[0028] Figure 6Structure diagram of four-way oblique shaft side mixing assembly in the embodiment of the present application Figure 2 ;

[0029] Figure 7 Structure diagram of cylindrical rotary flow air inlet assembly in the embodiment of the present application

[0030] Figure 8 Three-dimensional sectional view of cylindrical rotary flow air inlet assembly in the embodiment of the present application

[0031] In the figure: 1, mixing tank; 101, lower bottom plate; 102, manhole; 103, discharge valve; 104, on-off valve; 2, upper partition plate; 201, material guiding pipe; 3, four-way oblique shaft side mixing assembly; 301, cross table; 302, oblique shaft table; 303, oblique stirring shaft; 304, helical blade; 305, driving bevel gear shaft; 306, double-chain wheel constant velocity transmission structure; 307, four-chain wheel transmission mechanism; 308, driven bevel gear; 4, hollow air guiding shaft; 5, air storage box; 6, air inlet joint; 7, rotary driving assembly; 8, cylindrical rotary flow air inlet assembly; 801, air collecting cylinder; 802, upper sandglass-shaped cylinder cover; 803, lower sandglass-shaped bottom cover; 804, C-shaped pipe; 805, nozzle; 806, upper vortex impeller; 807, lower vortex impeller; 9, lower stirring assembly; 901, bottom shaft; 902, side shaft; 903, stirring paddle; 904, belt transmission structure; 10, circulating fan; 1001, circulating air inlet. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present application; all other embodiments obtained by those skilled in the art based on the embodiments in the present application without creative labor fall within the scope of protection of the present application.

[0033] As Figures 1-8As shown, a kind of sodium hypochlorite disinfectant water production stirring equipment, including mixing tank 1, fixed installation is installed at the upper position in mixing tank 1, hollow gas guide shaft 4 is rotatably installed at the center position of upper baffle 2, the top of hollow gas guide shaft 4 is rotatably and sealingly connected with gas storage box 5, gas storage box 5 is fixedly installed on upper baffle 2, the bottom of hollow gas guide shaft 4 extends below upper baffle 2 and is communicated with cylinder type rotational flow air intake assembly 8, the center position of the top of mixing tank 1 is installed with air inlet connector 6, the lower end of air inlet connector 6 is fixedly connected with the upper end of gas storage box 5, circulation assembly for circulating the chlorine gas in mixing tank 1 is provided in gas storage box 5, the bottom of mixing tank 1 is installed with lower stirring assembly 9 which is power-connected with the lower end of cylinder type rotational flow air intake assembly 8, four-way oblique shaft side mixing assembly 3 for generating oblique axial disturbance to material is installed on the lower surface of upper baffle 2, double-chain wheel constant velocity transmission structure 306 for power connection is installed between four-way oblique shaft side mixing assembly 3 and hollow gas guide shaft 4, the top of mixing tank 1 is installed with rotary drive assembly 7 for driving four-way oblique shaft side mixing assembly 3 to work.

[0034] The top of mixing tank 1 is installed with at least one manhole 102 on one side of rotary drive assembly 7, guide pipe 201 is installed on the position corresponding to manhole 102 on upper baffle 2, the upper end of guide pipe 201 is communicated with corresponding manhole 102, the lower end of guide pipe 201 penetrates to the lower side of upper baffle 2 and is communicated with the inner cavity of mixing tank 1.

[0035] In this way, manhole 102 is directly communicated with the inner cavity of mixing tank 1 through guide pipe 201, and is used for adding reaction material through manhole 102, at this time, reaction material directly enters into the inside of mixing tank 1 below upper baffle 2 through the guide of manhole 102 and guide pipe 201, which is convenient to use.

[0036] In the embodiment, the number of manholes 102 is two, and the two manholes 102 are arranged at intervals, and the number of guide pipes 201 matches the number of manholes 102.

[0037] At least one switch valve 104 is installed on the top of mixing tank 1, guide pipe is installed on the lower end of switch valve 104, the lower end of guide pipe penetrates to the lower side of upper baffle 2 and is communicated with the inner cavity of mixing tank 1.

[0038] At least one discharge valve 103 is installed on the outer wall of one side of mixing tank 1 near the lower side thereof, discharge valve 103 is communicated with the inner cavity of mixing tank 1, and discharge valve 103 is arranged at the lowest liquid level in mixing tank 1, and is used for discharging mixed material in mixing tank 1.

[0039] In the embodiment, the mixing tank 1 is used as a core container for producing sodium hypochlorite disinfectant water by liquid caustic chlorination method, and has good sealing property and corrosion resistance, and can withstand chemical substances and temperature changes generated in the reaction process.

[0040] The whole reaction process is exothermic, and a cooling system such as a cooling jacket needs to be arranged in the outer wall of the mixing tank 1. The cooling system integrated in the tank wall continuously works to remove heat. The temperature sensor and the pH sensor in the prior art solution can also be arranged inside the mixing tank 1. The temperature and the pH sensor readings in the mixing tank 1 are monitored in the control room to finely adjust the chlorine inlet rate and the power of the cooling system, so as to ensure that the reaction is always smoothly carried out in the optimal temperature and pH range.

[0041] As shown in Figure 5 and Figure 6 , the four-way inclined shaft side mixing assembly 3 includes a cross table 301 installed at the center of the upper partition plate 2. An inclined shaft table 302 is fixedly installed at the bottom end corner position of the cross table 301. An inclined stirring shaft 303 is rotatably arranged on the inclined shaft table 302. The inclined stirring shaft 303 is arranged obliquely, and the oblique angle between the central axis of the inclined stirring shaft 303 and the central axis of the mixing tank 1 is 30°-45°.

[0042] In the embodiment, the oblique angle between the central axis of the inclined stirring shaft 303 and the central axis of the mixing tank 1 is preferably 45°.

[0043] The upper end of the inclined stirring shaft 303 is fixedly connected with a driven bevel gear 308. A driving bevel gear shaft 305 is rotatably arranged at a position close to the driven bevel gear 308 on the cross table 301. The lower end of the driving bevel gear shaft 305 is engaged with the driven bevel gear 308. The driving bevel gear shaft 305 is rotatably engaged with the driven bevel gear 308 to drive the inclined stirring shaft 303 to rotate.

[0044] The upper ends of the four driving bevel gear shafts 305 are connected with a four-chain wheel transmission mechanism 307. The four driving bevel gear shafts 305 are synchronously connected through the four-chain wheel transmission mechanism 307.

[0045] In this way, when the four-way inclined shaft side mixing assembly 3 needs to work, the upper end of one driving bevel gear shaft 305 is first rotated by the driving of the rotary driving assembly 7. The driving bevel gear shaft 305 is driven to rotate through the cooperation of the four-chain wheel transmission mechanism 307, and the remaining three driving bevel gear shafts 305 are also driven to rotate. When the four driving bevel gear shafts 305 rotate, they respectively drive the inclined stirring shaft 303 to rotate through the corresponding driven bevel gears 308. The inclined stirring shaft 303 rotates to stir the sodium hydroxide solution and chlorine.

[0046] The four active bevel gear shafts 305 rotate synchronously, enabling the material to be agitated at four positions, generating oblique axial turbulence, avoiding dead zones and liquid stratification, and the multi-directional stirring greatly enhances the circulation and mixing effect of the liquid, which is conducive to the full contact and reaction between gas and liquid.

[0047] In this embodiment, the four-sprocket transmission mechanism 307 includes four transmission sprockets, which are respectively fixedly installed on the shafts of four drive bevel gear shafts 305, and the same transmission chain is sleeved on the four transmission sprockets.

[0048] A spiral blade 304 is installed on the outer wall of the inclined stirring shaft 303 away from the driven bevel gear 308. The outer diameter of the spiral blade 304 gradually decreases from one end near the inclined shaft platform 302 to the other end.

[0049] The rotary drive assembly 7 includes a base mounted on one side of the top of the mixing tank 1. A stepper motor is mounted on the top of the base. The power output shaft of the stepper motor passes through the upper end face of the mixing tank 1 and is fixedly connected to the upper end of one of the drive bevel gear shafts 305 via a coupling.

[0050] In this embodiment, the stepper motor can provide stable and continuous power to ensure that the four-way oblique shaft side mixing assembly 3 and the cylindrical swirl air intake assembly 8 operate at a predetermined speed and in a predetermined manner, making it convenient to use.

[0051] The dual-sprocket constant velocity transmission structure 306 includes a driven sprocket fixedly mounted on the outer surface of the hollow air guide shaft 4, a driving sprocket fixedly mounted on the driving bevel gear shaft 305 below the stepper motor, and a transmission chain connecting the driving sprocket and the driven sprocket.

[0052] With this design, the stepper motor starts and drives the corresponding active bevel gear shaft 305 to rotate. At this time, the active bevel gear shaft 305 can drive the hollow gas guide shaft 4 to rotate through the double sprocket constant speed transmission structure 306. The upper end of the hollow gas guide shaft 4 is connected to the gas storage box 5 by a rotational seal. This allows chlorine gas in the gas storage box 5 to enter the hollow gas guide shaft 4 while supporting the rotation of the hollow gas guide shaft 4, ensuring that the chlorine gas can be transported stably and safely.

[0053] Depend on Figure 7 and Figure 8 As shown, the cylindrical swirl air intake assembly 8 includes an upper hourglass-shaped cover 802 fixedly installed at the lower end of the hollow air guide shaft 4. An air collecting cylinder 801 is installed at the bottom end of the upper hourglass-shaped cover 802, and a lower hourglass-shaped bottom cover 803 is installed at the bottom end of the air collecting cylinder 801. The connection between the upper hourglass-shaped cover 802, the air collecting cylinder 801 and the lower hourglass-shaped bottom cover 803 is a sealed connection, and an air storage cavity is formed inside.

[0054] The outer wall of the gas collecting cylinder 801 is annularly and equidistantly provided with a plurality of C-shaped pipes 804, and the C-shaped pipes 804 are equidistantly provided with a plurality of nozzles 805 along the vertical axis direction away from the outer wall of the gas collecting cylinder 801.

[0055] In this way, the gas inlet joint 6 is communicated with the external chlorine source, and the chlorine gas sequentially passes through the gas storage box 5, the hollow gas guide shaft 4, and the upper sand clock type cylinder cover 802 to enter the gas collecting cylinder 801, at this time, the C-shaped pipe 804 plays a role of flow distribution, and makes the chlorine gas sprayed through the nozzle 805, and disperses the chlorine gas into fine bubbles by using the cyclone effect, so that the chlorine gas is uniformly distributed in the mixing tank 1, thereby increasing the gas-liquid interface, prolonging the gas residence time, and improving the reaction rate and reaction effect.

[0056] In this embodiment, the outer wall of the upper sand clock type cylinder cover 802 and the lower sand clock type bottom cover 803 is provided with a plurality of reinforcing ribs, the reinforcing ribs are used to improve the overall structural strength of the upper sand clock type cylinder cover 802 and the lower sand clock type bottom cover 803, and the reinforcing ribs can also stir the liquid material when rotating with the gas collecting cylinder 801.

[0057] In this embodiment, the nozzles 805 are all one-way nozzles, which can prevent the liquid material in the mixing tank 1 from flowing back to the gas collecting cylinder 801 through the nozzles 805.

[0058] The circulating assembly comprises a circulating fan 10 fixedly installed in the gas storage box 5, the air inlet of the circulating fan 10 is communicated with the inner cavity of the gas storage box 5, the air outlet of the circulating fan 10 is communicated with the hollow gas guide shaft 4, and at least one circulating air inlet 1001 is installed on the outer surface of the gas storage box 5, and a one-way air valve is installed in the circulating air inlet 1001.

[0059] In this way, the circulating fan 10 is started to suck the chlorine gas in the gas storage box 5 and deliver the chlorine gas to the hollow gas guide shaft 4 after being pressurized, so as to realize secondary pressurization of the chlorine gas and improve the delivery effect of the chlorine gas.

[0060] In addition, after the circulating fan 10 is started, a negative pressure state is formed in the gas storage box 5, at this time, the one-way air valve in the circulating air inlet 1001 is automatically opened, and the gas outside the gas storage box 5 can enter the gas storage box 5 through the circulating air inlet 1001, which is convenient to use.

[0061] In this embodiment, at least one air vent is formed in the upper partition plate 2, and the air vent enables the chambers on the upper and lower sides of the upper partition plate 2 in the mixing tank 1 to be communicated.

[0062] In this way, the chlorine gas sprayed from the nozzle 805 moves upward after entering the dilute sodium hydroxide solution, and finally accumulates between the upper baffle 2 and the liquid surface in the mixing tank 1. At this time, the chlorine gas enters the chamber above the upper baffle 2 in the mixing tank 1 through the air hole. The circulation fan 10 is started to form a negative pressure state in the gas storage box 5, and through the cooperation of the circulating air inlet 1001, the chlorine gas can be sucked into the gas storage box 5 again. Then, the chlorine gas enters the dilute sodium hydroxide solution again through the hollow gas guide shaft 4, the gas collecting cylinder 801 and the nozzle 805, realizing the circulation of chlorine gas in the mixing tank 1, improving the reaction rate and production rate.

[0063] The lower stirring assembly 9 comprises a lower bottom plate 101 fixedly installed at the bottom of the mixing tank 1, and a bottom shaft 901 rotatably installed at the center position of the lower bottom plate 101. The top end of the bottom shaft 901 is fixedly connected with the bottom end of the lower sand hour type bottom cover 803.

[0064] In the embodiment, the bottom shaft 901 is rotatably and sealingly connected with the lower bottom plate 101. The bottom shaft 901 can rotatably support the lower end of the lower sand hour type bottom cover 803, thereby improving the stability of the gas collecting cylinder 801 during rotation and improving the use effect.

[0065] At least one side shaft 902 is rotatably installed on the lower bottom plate 101 at one side of the bottom shaft 901. The top end of the side shaft 902 extends upward and is fixedly installed with a stirring paddle 903. The lower end of the side shaft 902 penetrates to the lower side of the lower bottom plate 101 and is installed with a belt transmission structure 904 for power connection with the lower end of the bottom shaft 901.

[0066] In the embodiment, the number of side shafts 902 is one, and one side shaft 902 is rotatably installed on the lower bottom plate 101 at one side of the bottom shaft 901. The number of belt transmission structures 904 is also one set. The belt transmission structure 904 is used to realize power connection between the side shaft 902 and the bottom shaft 901.

[0067] In the embodiment, the belt transmission structure 904 comprises two synchronous pulleys fixedly installed on the side shaft 902 and the lower end of the bottom shaft 901, respectively. The same synchronous belt is sleeved on the two synchronous pulleys.

[0068] In this way, the bottom shaft 901 can rotate with the lower sand hour type bottom cover 803, the gas collecting cylinder 801, the upper sand hour type cylinder cover 802 and the hollow gas guide shaft 4. The bottom shaft 901 drives the side shaft 902 and the stirring paddle 903 to rotate through the belt transmission structure 904 during rotation, realizing cooperative work and forming an overall efficient stirring system to prevent deposition and crystallization at the bottom and ensure uniform flow and mixing of the liquid in the entire tank.

[0069] The upper vortex impeller 806 is fixedly installed on the outer surface of the hollow air guide shaft 4 above the upper hourglass-shaped cylinder cover 802; the hollow air guide shaft 4 drives the upper vortex impeller 806 to rotate in the process of rotation, and the upper vortex impeller 806 rotates to stir the liquid material.

[0070] The lower vortex impeller 807 is fixedly installed on the outer surface of the bottom shaft 901 below the lower hourglass-shaped bottom cover 803; the bottom shaft 901 drives the lower vortex impeller 807 to rotate in the process of rotation, and the lower vortex impeller 807 rotates to stir the liquid material.

[0071] In use, first, the staff checks that the mixing tank 1 and each component are intact and clean, then a predetermined amount of dilute sodium hydroxide solution is delivered into the mixing tank 1, and feeding is stopped when the liquid level reaches the specified height; next, the operator needs to confirm that the power supply of the rotary drive assembly 7, the external cooling system and the chlorine supply pipeline are in a ready state, and the gas inlet end of the gas inlet joint 6 is connected to the chlorine supply pipeline.

[0072] After the preparation is completed, the staff starts the rotary drive assembly 7, which directly drives the four-way oblique shaft side mixing assembly 3 to work, and the four-way oblique shaft side mixing assembly 3 generates a strong axial and radial composite flow field in the tank to fully agitate the sodium hydroxide solution, ensuring that the concentration and temperature in the entire tank are highly uniform, creating an ideal environment for subsequent reactions.

[0073] At the same time, the rotating power of the four-way oblique shaft side mixing assembly 3 is accurately transmitted to the hollow air guide shaft 4 through the double-chain wheel constant-speed transmission structure 306, so that the hollow air guide shaft 4 drives the cylinder-type rotational flow gas inlet assembly 8 to rotate synchronously.

[0074] After the stirring action runs stably, the staff opens the external chlorine supply valve, and chlorine is continuously delivered into the gas storage box 5 and the hollow air guide shaft 4 and the cylinder-type rotational flow gas inlet assembly 8 in the rotating state through the gas inlet joint 6; the cylinder-type rotational flow gas inlet assembly 8 rotates under the drive of the double-chain wheel constant-speed transmission structure 306, and the chlorine is thrown out under the action of centrifugal force and uniformly diffused into the entire mixing tank 1; the uniformly dispersed chlorine flows at high speed under the action of the four-way oblique shaft side mixing assembly 3 and fully mixes with the dilute sodium hydroxide solution to generate sodium hypochlorite.

[0075] The circulating assembly works to suck and pressurize the chlorine in the gas storage box 5 and then deliver it into the hollow air guide shaft 4, realizing secondary pressurization of the chlorine, improving the delivery effect of the chlorine, and the chlorine moving above the liquid surface in the mixing tank 1 is sucked into the gas storage box 5 again by the circulating assembly and flows again, improving the utilization rate of the chlorine and the reaction rate and production rate.

[0076] When the reaction reaches the end point, the operator closes the chlorine valve, stops the aeration, and then the stirring continues to run for a period of time to make the reaction complete and the material homogeneous; finally, the rotating drive assembly 7 is stopped, the discharge valve 103 is opened, the finished sodium hypochlorite disinfectant water product is transported to the settling tank for temporary storage, and after subsequent filtration, it enters the finished product storage tank, completing the entire production operation.

[0077] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary and that changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application. It is the intent, therefore, to be limited only as described by the claims and equivalents thereof.

Claims

1. A stirring device for producing sodium hypochlorite disinfectant, characterized in that: The system includes a mixing tank (1), an upper partition (2) fixedly installed at the upper part of the mixing tank (1), a hollow air guide shaft (4) rotatably installed at the center of the upper partition (2), a gas storage box (5) rotatably and sealed at the top of the hollow air guide shaft (4), the gas storage box (5) fixedly installed on the upper partition (2), the bottom end of the hollow air guide shaft (4) extends to the bottom of the upper partition (2) and is connected to a cylindrical swirl air intake assembly (8), an air inlet connector (6) is installed at the center of the top of the mixing tank (1), the lower end of the air inlet connector (6) is fixedly connected to the upper end of the gas storage box (5), and the gas storage box (5) contains... A circulation assembly is provided for circulating chlorine gas in the mixing tank (1). A lower stirring assembly (9) is installed at the bottom of the mixing tank (1) and is powered to the lower end of the cylindrical swirl air inlet assembly (8). A four-way oblique axis side mixing assembly (3) is installed on the lower surface of the upper partition (2) for generating oblique axial turbulence on the material. A double sprocket constant speed transmission structure (306) for power connection is installed between the four-way oblique axis side mixing assembly (3) and the hollow air guide shaft (4). A rotary drive assembly (7) for driving the four-way oblique axis side mixing assembly (3) is installed at the top of the mixing tank (1). The cylindrical swirl air intake assembly (8) includes an upper hourglass-shaped cover (802) fixedly installed at the lower end of the hollow air guide shaft (4). An air collecting cylinder (801) is installed at the bottom end of the upper hourglass-shaped cover (802). A lower hourglass-shaped bottom cover (803) is installed at the bottom end of the air collecting cylinder (801). Several C-shaped tubes (804) are installed at equal intervals around the outer wall of the air collecting cylinder (801). Several nozzles (805) are installed at equal intervals along the vertical axis on the outer wall of the C-shaped tubes (804) away from the air collecting cylinder (801).

2. The stirring equipment for producing sodium hypochlorite disinfectant water according to claim 1, characterized in that: The four-way inclined shaft side mixing assembly (3) includes a cross platform (301) installed at the center of the upper partition plate (2), an inclined shaft platform (302) fixedly installed at the bottom corner of the cross platform (301), an inclined stirring shaft (303) rotatably installed on the inclined shaft platform (302), a driven bevel gear (308) fixed at the upper end of the inclined stirring shaft (303), and a driving bevel gear shaft (305) rotatably installed on the cross platform (301) near the driven bevel gear (308). The lower end of the driving bevel gear shaft (305) meshes with the driven bevel gear (308), and a four-sprocket transmission mechanism (307) is installed between the upper ends of the four driving bevel gear shafts (305).

3. The stirring equipment for producing sodium hypochlorite disinfectant water according to claim 2, characterized in that: A spiral blade (304) is installed on the outer wall of the end of the inclined stirring shaft (303) away from the driven bevel gear (308). The outer diameter of the spiral blade (304) gradually decreases from one end near the inclined shaft platform (302) to the other end.

4. The stirring equipment for producing sodium hypochlorite disinfectant water according to claim 3, characterized in that: The rotary drive assembly (7) includes a base mounted on one side of the top of the mixing tank (1), a stepper motor mounted on the top of the base, and the power output shaft of the stepper motor passing through the upper end face of the mixing tank (1) and fixedly connected to the upper end of one of the active bevel gear shafts (305).

5. The stirring equipment for producing sodium hypochlorite disinfectant water according to claim 4, characterized in that: The circulation assembly includes a circulation fan (10) fixedly installed in the air storage box (5). The air inlet of the circulation fan (10) is connected to the inner cavity of the air storage box (5), and the air outlet of the circulation fan (10) is connected to the hollow air guide shaft (4). At least one circulation air inlet (1001) is installed on the outer surface of the air storage box (5), and a one-way air valve is installed in the circulation air inlet (1001).

6. The stirring equipment for producing sodium hypochlorite disinfectant water according to claim 5, characterized in that: The lower stirring assembly (9) includes a lower bottom plate (101) fixedly installed at the bottom of the mixing tank (1), and a bottom shaft (901) is rotatably installed at the center of the lower bottom plate (101). The top end of the bottom shaft (901) is fixedly connected to the bottom end of the lower hourglass-shaped bottom cover (803).

7. The stirring equipment for producing sodium hypochlorite disinfectant water according to claim 6, characterized in that: At least one side shaft (902) is rotatably mounted on the bottom plate (101) on one side of the bottom shaft (901). The top end of the side shaft (902) extends upward and is fixedly mounted with a stirring paddle (903). The lower end of the side shaft (902) extends through to the bottom of the bottom plate (101) and is equipped with a belt drive structure (904) for power connection with the lower end of the bottom shaft (901).

8. The stirring equipment for producing sodium hypochlorite disinfectant water according to claim 7, characterized in that: An upper vortex impeller (806) is fixedly installed on the outer surface of the hollow air guide shaft (4) above the upper hourglass-shaped cylinder cover (802); a lower vortex impeller (807) is fixedly installed on the outer surface of the bottom shaft (901) below the lower hourglass-shaped bottom cover (803).

9. A stirring device for producing sodium hypochlorite disinfectant water according to claim 8, characterized in that: The top of the mixing tank (1) is located on one side of the rotary drive assembly (7) and at least one manhole (102) is installed. The inner end of the manhole (102) is integrally connected to a guide pipe (201). The lower end of the guide pipe (201) extends through to the bottom of the upper partition (2) and communicates with the inner cavity of the mixing tank (1).

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