Stirring equipment for producing sodium hypochlorite disinfectant fluid

Abstract

The invention belongs to the technical field of material mixing, and discloses stirring equipment for sodium hypochlorite disinfectant fluid production, which comprises a mixing tank, an upper partition plate is fixedly mounted at the upper position in the mixing tank, a hollow air guide shaft is rotatably mounted at the center position of the upper partition plate, and the top end of the hollow air guide shaft is rotatably and hermetically connected with an air storage box; the bottom end of the hollow gas guide shaft extends to the position below the upper partition plate and is communicated with a column barrel type rotational flow gas inlet assembly, a gas inlet connector is installed at the top end of the mixing tank and communicated with a gas storage box, a circulating assembly used for making chlorine in the mixing tank circularly flow is arranged in the gas storage box, and a lower stirring assembly is installed at the bottom of the mixing tank. A four-way oblique shaft edge mixing assembly is mounted on the lower surface of the upper partition plate, a double-chain-wheel constant-speed transmission structure used for power connection is mounted between the four-way oblique shaft edge mixing assembly and the hollow air guide shaft, and a rotary driving assembly is mounted at the top end of the mixing tank; the sodium hypochlorite disinfectant fluid 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 mutual 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, and the upper end of the rotating shaft is rotatably connected to the top of the barrel. A driven gear is arranged on the outside of 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 engagement. 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 at the bottom end of the rotating shaft. A sealed chamber is arranged in the conical body. The gas passage and the chamber are in communication. Gas holes are arranged on the surface of the conical body. The gas holes and the chamber are in communication. The above-mentioned stirring device adopts a gas passage arranged in the middle of the rotating shaft, and uses the gas passage to deliver gas below the liquid surface of the stirred material, and then uses the aeration method to stir the material.

[0005] Therefore, when chlorine gas is introduced into the stirring tank, the opening position of the chlorine gas is relatively static, which is limited by the gas inlet point and the diffusion rate. The chlorine gas is always limited in a local position of the tank body. In the local area where the chlorine gas is excessive, the pH value decreases sharply and becomes acidic. This makes the newly generated sodium hypochlorite quickly decompose in the acidic environment and may react with the byproduct 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. This non-uniformity 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. The four-way inclined shaft side mixing assembly at the upper position in the mixing tank is driven by the rotary drive assembly to work. A 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. 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. Then, the chlorine gas uniformly enters the mixing tank through the cylindrical cyclone gas inlet assembly and reacts with the dilute sodium hydroxide solution to solve the technical problems in the background art.

[0007] To solve the above technical problems, the present application provides the following technical solutions: The utility model provides a kind of stirring equipment for sodium hypochlorite disinfectant water production, including mixing tank, hollow air 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 air guide shaft is rotatably and sealingly connected with gas storage box, gas storage box is fixedly installed on upper baffle, the bottom of hollow air 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 axial disturbance to material is installed on the lower surface of upper baffle, double sprocket constant velocity transmission structure for power connection is installed between four-way oblique shaft side mixing component and hollow air guide shaft, the top of mixing tank is installed with rotary drive assembly for driving four-way oblique shaft side mixing component to work.

[0008] The following is the further optimization of the technical solution of the present application: 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 fixedly installed on 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-sprocket transmission mechanism installed between the upper ends of the four driving bevel gear shafts.

[0009] Further optimization: a helical 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 helical blade gradually decreases from one end near the oblique shaft table to the other end.

[0010] 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.

[0011] 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 air 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 pipes 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 pipe away from the gas collecting cylinder along the vertical axis direction.

[0012] Further optimization: the circulating assembly comprises a circulating fan fixedly installed in the gas storage box, an air inlet of the circulating fan is communicated with the inner cavity of the gas storage box, an air outlet of the circulating fan is communicated with the hollow air 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.

[0013] 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.

[0014] Further optimization: at least one side shaft is rotatably installed on the lower bottom plate 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.

[0015] Further optimization: an upper vortex impeller is fixedly installed above the upper sand hour type cylinder cover on the outer surface of the hollow air guide shaft; and a lower vortex impeller is fixedly installed below the lower sand hour type bottom cover on the outer surface of the bottom shaft.

[0016] Further optimization: at least one manhole is installed on the top end of the mixing tank at one side of the rotary driving assembly, an 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.

[0017] The above technical scheme has at least the following beneficial effects: 1、In the present application, 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 air guide shaft through the double chain wheel constant speed transmission structure, the chlorine gas enters the gas storage box and the hollow air guide shaft in the rotary state and the cylindrical rotary flow air inlet assembly through the air inlet joint, then the chlorine gas uniformly enters the mixing tank through the cylindrical 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.

[0018] 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 with the speed at any time, and the gas dispersion effect and the fluid flow field state are always optimally matched, avoiding uneven gas distribution caused by different speeds.

[0019] 3、The columnar cyclone air inlet assembly is located in the liquid phase of the mixing tank, 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 escaping 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, and the loss of chlorine gas escaping without reaction is almost avoided, the raw material utilization rate is improved, and the local excessive reaction or insufficient reaction is prevented, and the effective chlorine content of the produced sodium hypochlorite solution is stable. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The three-dimensional structure of the embodiment of the present application is shown Figure 1 ; Figure 2 The three-dimensional structure of the embodiment of the present application is shown Figure 2 ; Figure 3 The cross-sectional view of the overall structure of the embodiment of the present application is shown Figure 4 The cross-sectional view of the overall structure of the embodiment of the present application is shown Figure 5 The structure of the four-way oblique shaft side mixing assembly in the embodiment of the present application is shown Figure 1 ; Figure 6 The structure of the four-way oblique shaft side mixing assembly in the embodiment of the present application is shown Figure 2 ; Figure 7It is a structure schematic view of the columnar cyclone air intake assembly in the embodiment of the present application. Figure 8 It is a perspective sectional view of the columnar cyclone air intake assembly in the embodiment of the present application.

[0021] In the figure: 1, mixing tank; 101, lower bottom plate; 102, manhole; 103, discharge valve; 104, on-off valve; 2, upper baffle; 201, material guide 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 sprocket constant velocity transmission structure; 307, four sprocket transmission mechanism; 308, driven bevel gear; 4, hollow air guide shaft; 5, air storage box; 6, air intake joint; 7, rotary drive assembly; 8, columnar cyclone air intake assembly; 801, air collecting cylinder; 802, upper sand clock type cylinder cover; 803, lower sand clock type 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 intake. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; all other embodiments obtained by those skilled in the art without creative labor on the basis of the embodiments in the present application belong to the protection scope of the present application.

[0023] As Figures 1-8 shown in the figure, a kind of stirring equipment for sodium hypochlorite disinfectant water production, including mixing tank 1, fixedly installed with upper baffle 2 at upper position in mixing tank 1, hollow air guide shaft 4 is rotatably installed at the center position of upper baffle 2, the top of hollow air guide shaft 4 is rotatably and sealingly connected with air storage box 5, air storage box 5 is fixedly installed on upper baffle 2, the bottom of hollow air guide shaft 4 extends below upper baffle 2 and is connected with columnar cyclone air intake assembly 8, air intake joint 6 is installed at the center position of the top of mixing tank 1, the lower end of air intake joint 6 is fixedly connected with the upper end of air storage box 5, circulating assembly for making chlorine in mixing tank 1 circulate is arranged in air storage box 5, lower stirring assembly 9 is installed at the bottom of mixing tank 1 and is power-connected with the lower end of columnar cyclone air intake assembly 8, four-way oblique shaft side mixing assembly 3 for generating oblique shaft disturbance to material is installed on the lower surface of upper baffle 2, double sprocket constant velocity transmission structure 306 for power connection is installed between four-way oblique shaft side mixing assembly 3 and hollow air guide shaft 4, rotary drive assembly 7 for driving four-way oblique shaft side mixing assembly 3 to work is installed at the top of mixing tank 1.

[0024] The top end of the mixing tank 1 is provided with at least one manhole 102 on one side of the rotary drive assembly 7, and a guide pipe 201 is arranged on the upper baffle 2 at a position corresponding to the manhole 102. The upper end of the guide pipe 201 is communicated with the corresponding manhole 102, and the lower end of the guide pipe 201 penetrates to the lower side of the upper baffle 2 and is communicated with the inner cavity of the mixing tank 1.

[0025] In this way, the manhole 102 is directly communicated with the inner cavity of the mixing tank 1 through the guide pipe 201, and the manhole 102 is used for adding reactants. At this time, the reactants directly enter the inside of the mixing tank 1 below the upper baffle 2 through the manhole 102 and the guide flow of the guide pipe 201, which is convenient to use.

[0026] In this embodiment, the number of manholes 102 is two, and the two manholes 102 are arranged at intervals. The number of guide pipes 201 matches the number of manholes 102.

[0027] The top end of the mixing tank 1 is also provided with at least one on-off valve 104, and a guide pipe is arranged at the lower end of the on-off valve 104. The lower end of the guide pipe penetrates to the lower side of the upper baffle 2 and is communicated with the inner cavity of the mixing tank 1.

[0028] At least one discharge valve 103 is arranged on the outer wall of the mixing tank 1 near the lower position thereof. The discharge valve 103 is communicated with the inner cavity of the mixing tank 1, and is arranged at the lowest liquid level in the mixing tank 1. The discharge valve 103 is used for discharging the mixed materials in the mixing tank 1.

[0029] In this embodiment, the mixing tank 1 is used as a core container for producing sodium hypochlorite disinfectant water by liquid caustic chlorination method. The overall structure has good sealing property and corrosion resistance, and can withstand the chemical substances and temperature changes generated in the reaction process.

[0030] The whole reaction process is exothermic, and a cooling system such as a cooling water 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 scheme can also be arranged in the inside of the mixing tank 1. The temperature and the pH sensor readings in the mixing tank 1 are monitored in the control room, the inlet rate of chlorine gas and the power of the cooling system are finely adjusted, so that the reaction is always smoothly carried out in the best temperature and pH range.

[0031] By Figure 5 and Figure 6As shown, the four-way oblique shaft side mixing assembly 3 comprises a cross table 301 installed at the center of the upper partition 2, an oblique shaft table 302 fixedly installed at the bottom corner of the cross table 301, and an oblique stirring shaft 303 rotatably installed on the oblique shaft table 302. The oblique stirring shaft 303 is obliquely arranged, and the oblique angle between the central axis of the oblique stirring shaft 303 and the central axis of the mixing tank 1 is 30°-45°.

[0032] In this embodiment, the oblique angle between the central axis of the oblique stirring shaft 303 and the central axis of the mixing tank 1 is preferably 45°.

[0033] The upper end of the oblique stirring shaft 303 is fixedly connected with a driven bevel gear 308, and a driving bevel gear shaft 305 is rotatably installed on the cross table 301 near the driven bevel gear 308. 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 oblique stirring shaft 303 to rotate.

[0034] 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.

[0035] In this way, when the four-way oblique shaft side mixing assembly 3 needs to work, the upper end of one driving bevel gear shaft 305 is rotated by the driving of the rotary driving assembly 7. The driving bevel gear shaft 305 drives the other three driving bevel gear shafts 305 to rotate through the cooperation of the four-chain-wheel transmission mechanism 307. The four driving bevel gear shafts 305 drive the oblique stirring shaft 303 to rotate through the corresponding driven bevel gears 308. The oblique stirring shaft 303 rotates to stir the sodium hydroxide solution and chlorine gas.

[0036] The synchronous rotation of the four driving bevel gear shafts 305 can stir the material at four positions, generate oblique axial disturbance to the material, avoid dead angles and liquid stratification, greatly enhance the circulation and mixing effect of the liquid, and facilitate the full contact and reaction of the gas and the liquid.

[0037] In this embodiment, the four-chain-wheel transmission mechanism 307 comprises four transmission sprockets fixedly installed on the shaft bodies of the four driving bevel gear shafts 305, and a same transmission chain is sleeved on the four transmission sprockets.

[0038] The outer wall of the end of the oblique stirring shaft 303 away from the driven bevel gear 308 is provided with a spiral blade 304. The outer diameter of the spiral blade 304 gradually decreases from one end close to the oblique shaft table 302 to the other end.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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.

[0044] Several C-shaped tubes 804 are installed at equal intervals in a ring around the outer wall of the gas 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 gas collecting cylinder 801.

[0045] With this design, the air inlet connector 6 is connected to an external chlorine source. The chlorine gas enters the gas collecting cylinder 801 through the gas storage box 5, the hollow air guide shaft 4, and the upper hourglass-shaped cylinder cover 802. At this time, the C-shaped tube 804 serves to divert the flow and allows the chlorine gas to be sprayed out through the nozzle 805. The swirling effect is used to disperse the chlorine gas into fine bubbles, which are evenly 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.

[0046] In the embodiment, the outer walls of the upper hourglass-shaped cylinder cover 802 and the lower hourglass-shaped bottom cover 803 are provided with reinforcing ribs, which are used to improve the overall structural strength of the upper hourglass-shaped cylinder cover 802 and the lower hourglass-shaped bottom cover 803, and the reinforcing ribs can also stir the liquid material when the gas collecting cylinder 801 rotates.

[0047] In the 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.

[0048] The circulating assembly comprises a circulating fan 10 fixedly installed in the gas storage box 5, an air inlet of the circulating fan 10 is communicated with the inner cavity of the gas storage box 5, and an air outlet of the circulating fan 10 is communicated with the hollow gas guide shaft 4. 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.

[0049] In this way, the circulating fan 10 is started to suck the chlorine gas in the gas storage box 5 and then deliver the chlorine gas into the hollow gas guide shaft 4 after being pressurized, so that the chlorine gas is pressurized twice and the delivery effect of the chlorine gas is improved.

[0050] 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 for use.

[0051] In the embodiment, at least one air hole is formed in the upper partition plate 2, and the air hole enables the chambers on the upper and lower sides of the upper partition plate 2 in the mixing tank 1 to be communicated.

[0052] In this way, the chlorine gas sprayed by the nozzles 805 moves upward after entering the dilute sodium hydroxide solution, and finally the chlorine gas accumulates between the lower side of the upper partition plate 2 and the liquid surface in the mixing tank 1. At this time, the part of the chlorine gas enters the chamber above the upper partition plate 2 in the mixing tank 1 through the air hole. The circulating fan 10 is started to form a negative pressure state in the gas storage box 5, and the chlorine gas is sucked into the gas storage box 5 again through the cooperation of the circulating air inlet 1001, and then enters the dilute sodium hydroxide solution again through the hollow gas guide shaft 4, the gas collecting cylinder 801 and the nozzles 805, so that the chlorine gas circulates in the mixing tank 1, and the reaction rate and the production rate are improved.

[0053] 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 hourglass-shaped bottom cover 803.

[0054] In the embodiment, the bottom shaft 901 is rotatably and sealingly connected with the lower bottom plate 101, and the bottom shaft 901 can rotatably support the lower end of the lower sandglass-shaped bottom cover 803, thereby improving the stability of the gas collecting cylinder 801 during rotation and improving the use effect.

[0055] 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, and 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.

[0056] In the embodiment, the number of the side shaft 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, and the number of the belt transmission structure 904 is also one, and the belt transmission structure 904 is used to realize power connection between the side shaft 902 and the bottom shaft 901.

[0057] In the embodiment, the belt transmission structure 904 includes two synchronous pulleys, and the two synchronous pulleys are fixedly installed on the lower end of the side shaft 902 and the bottom shaft 901 respectively, and the same synchronous belt is sleeved on the two synchronous pulleys.

[0058] In this way, the bottom shaft 901 can rotate with the lower sandglass-shaped bottom cover 803, the gas collecting cylinder 801, the upper sandglass-shaped 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, realizes cooperative work, forms an overall efficient stirring system, prevents deposition and crystallization at the bottom, and ensures that the liquid in the whole tank can flow and mix uniformly.

[0059] The upper vortex impeller 806 is fixedly installed on the outer surface of the hollow gas guide shaft 4 above the upper sandglass-shaped cylinder cover 802; the hollow gas guide shaft 4 drives the upper vortex impeller 806 to rotate during rotation, and the upper vortex impeller 806 rotates to stir the liquid material.

[0060] The lower vortex impeller 807 is fixedly installed on the outer surface of the bottom shaft 901 below the lower sandglass-shaped bottom cover 803; the bottom shaft 901 drives the lower vortex impeller 807 to rotate during rotation, and the lower vortex impeller 807 rotates to stir the liquid material.

[0061] 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, the feeding is stopped when the liquid level reaches the specified height, then the operator needs to confirm that the power supply of the rotary drive assembly 7, the external cooling system and the chlorine gas supply pipeline are in a ready state, and the gas inlet end of the gas inlet joint 6 is connected to the chlorine gas supply pipeline.

[0062] After the preparation is completed, the staff starts the rotating 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.

[0063] Meanwhile, the rotating power of the four-way oblique shaft side mixing assembly 3 is accurately transmitted to the hollow gas guide shaft 4 through the double-chain wheel constant-speed transmission structure 306, so that the hollow gas guide shaft 4 drives the cylindrical cyclone air inlet assembly 8 to rotate synchronously.

[0064] After the stirring action is stable, the staff opens the external chlorine gas supply valve, and chlorine gas is continuously delivered to the gas storage box 5 and the hollow gas guide shaft 4 and the cylindrical cyclone air inlet assembly 8 in a rotating state through the air inlet connector 6. The cylindrical cyclone air inlet assembly 8 rotates under the drive of the double-chain wheel constant-speed transmission structure 306, and the chlorine gas is thrown out under the action of centrifugal force and evenly diffuses into the entire mixing tank 1. The uniformly dispersed chlorine gas flows at high speed under the action of the four-way oblique shaft side mixing assembly 3 and fully mixes and contacts with the dilute sodium hydroxide solution to generate sodium hypochlorite.

[0065] The circulating assembly works to suck and pressurize the chlorine gas in the gas storage box 5 and deliver it to the hollow gas guide shaft 4, achieving secondary pressurization of the chlorine gas, improving the delivery effect of the chlorine gas, and the chlorine gas that moves above the liquid surface in the mixing tank 1 is sucked again into the gas storage box 5 by the circulating assembly and flows again, improving the utilization rate of the chlorine gas and the reaction rate and production rate.

[0066] When the reaction reaches the end point, the operator closes the chlorine gas valve and stops aeration, and then the stirring work 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, and the produced sodium hypochlorite disinfecting water product is delivered to the settling tank for temporary storage, and after subsequent filtration, it enters the finished product storage tank, completing the entire production operation.

[0067] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stirring device for producing sodium hypochlorite disinfectant, characterized in that: The utility model provides a kind of four-way oblique shaft side mixing assembly, including mixing tank (1), upper baffle (2) is fixedly installed in the inside upper position of 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 columnar cyclone air intake component (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 component for circulating the chlorine in mixing tank (1) is provided in gas storage box (5), the bottom of mixing tank (1) is installed with lower stirring assembly (9) and the lower end of columnar cyclone air intake component (8) is power connected, the lower surface of upper baffle (2) is installed with four-way oblique shaft side mixing component (3) for generating oblique axial disturbance to material, double sprocket constant velocity transmission structure (306) for power connection is installed between four-way oblique shaft side mixing component (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 component (3) to work.

2. The stirring apparatus for producing sodium hypochlorite disinfectant water according to claim 1, characterized in that: The four-way oblique shaft side mixing component (3) includes a cross table (301) installed at the center position of the upper baffle (2), a diagonal shaft table (302) fixedly installed at the bottom corner position of the cross table (301), a diagonal stirring shaft (303) rotatably installed on the diagonal shaft table (302), a driven bevel gear (308) fixedly connected to the upper end of the diagonal stirring shaft (303), a driving bevel gear shaft (305) rotatably installed on the cross table (301) near the driven bevel gear (308), the lower end of the driving bevel gear shaft (305) meshing with the driven bevel gear (308), and a four-sprocket transmission mechanism (307) installed between the upper ends of the four driving bevel gear shafts (305).

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

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

5. The stirring apparatus for producing sodium hypochlorite disinfectant water according to claim 4, characterized in that: The columnar cyclone air intake component (8) includes an upper hourglass-shaped cylinder cover (802) fixedly installed on the lower end of the hollow gas guide shaft (4), a gas collection cylinder (801) installed on the bottom end of the upper hourglass-shaped cylinder cover (802), a lower hourglass-shaped bottom cover (803) installed on the bottom end of the gas collection cylinder (801), a plurality of C-shaped pipes (804) annularly and equidistantly installed on the outer wall of the gas collection cylinder (801), and a plurality of nozzles (805) equidistantly installed on the outer wall of the C-shaped pipe (804) away from the gas collection cylinder (801) along the vertical axis direction.

6. The stirring apparatus for producing sodium hypochlorite disinfectant water according to claim 5, characterized in that: The circulating assembly comprises a circulating fan (10) fixedly installed in the gas storage box (5), an air inlet of the circulating fan (10) is communicated with an inner cavity of the gas storage box (5), an air outlet of the circulating fan (10) is communicated with the hollow gas guide shaft (4), at least one circulating air inlet (1001) is installed on an outer surface of the gas storage box (5), and a one-way air valve is installed in the circulating air inlet (1001).

7. The stirring apparatus for producing sodium hypochlorite disinfectant water according to claim 6, characterized by: The lower stirring assembly (9) comprises a lower bottom plate (101) fixedly installed at the bottom of the mixing tank (1), a bottom shaft (901) rotatably installed at a central position of the lower bottom plate (101), and a bottom end of a lower sand hour type bottom cover (803) fixedly connected with a top end of the bottom shaft (901).

8. The stirring apparatus for producing sodium hypochlorite disinfectant water according to claim 7, characterized by: 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 upwards and is fixedly installed with a stirring paddle (903), and 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).

9. The stirring apparatus for producing sodium hypochlorite disinfectant water according to claim 8, characterized by: An upper vortex impeller (806) is fixedly installed above the upper sand hour type cylinder cover (802) on the outer surface of the hollow gas guide shaft (4); and a lower vortex impeller (807) is fixedly installed below the lower sand hour type bottom cover (803) on the outer surface of the bottom shaft (901).

10. The stirring apparatus for producing sodium hypochlorite disinfectant water according to claim 9, characterized by: At least one manhole (102) is installed at the top of the mixing tank (1) on one side of the rotary driving assembly (7), an inner end of the manhole (102) is integrally communicated with a material guide pipe (201), the lower end of the material guide pipe (201) penetrates to the lower side of the upper partition plate (2) and is communicated with the inner cavity of the mixing tank (1).

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