A production system of sodium dichloroisocyanurate

Abstract

The present application relates to a production system of sodium dichloroisocyanurate, and relates to the field of chemical production technology, in order to solve the problem that unreacted chlorine gas in the production process of sodium dichloroisocyanurate cannot be treated and will pollute the environment and endanger human health. It includes a reactor, the side wall of the reactor is connected with a feed pipe, the bottom wall of the reactor is connected with an air inlet pipe and a discharge pipe, the top wall of the reactor is connected with an air outlet pipe, and a promotion component is arranged in the reactor, and the promotion component is used to increase the reaction mixing degree of chlorine and trisodium cyanurate, the air outlet pipe is connected with a test device, the test device is connected with a discharge pipe and a reflux pipe, and the end of the reflux pipe away from the test device passes through the bottom wall of the reactor and is connected to the inside of the reactor, and the discharge pipe and the reflux pipe are connected with the test device. A solenoid valve is arranged at the connection point. The present application has the effect of increasing the reaction mixing degree of chlorine and trisodium cyanurate, increasing the utilization rate of chlorine, detecting the chlorine content in the tail gas, and improving the cleanliness of the discharged tail gas.

Description

Technical Field

[0001] The present application relates to the field of chemical production technology, and in particular to a production system of sodium dichloroisocyanurate. Background Art

[0002] Sodium dichloroisocyanurate is a white powdery crystal at room temperature with a chlorine smell. It is mainly used for sterilization and disinfection of non-metallic instruments, tableware, environment and contaminated items.

[0003] In the related art, sodium dichloroisocyanurate is usually produced by a trichloroisocyanuric acid double decomposition method, wherein cyanuric acid and sodium hydroxide solution are mixed in a certain molar ratio, a neutralization reaction occurs to generate trisodium cyanurate, chlorine gas is passed into the trisodium cyanurate at an applicable temperature to chlorinate the trichloroisocyanuric acid, and the trichloroisocyanuric acid slurry is centrifuged to obtain a trichloroisocyanuric acid slurry, and finally the trichloroisocyanuric acid slurry is passed into a trisodium cyanuric acid solution to generate a double decomposition reaction to generate sodium dichloroisocyanurate.

[0004] With respect to the above-mentioned related technologies, the inventors found that in the process of producing sodium dichloroisocyanurate, in order to improve the productivity of sodium dichloroisocyanurate, excessive chlorine is usually introduced, and the chlorine that does not participate in the reaction cannot be effectively treated, which will cause harm to the environment and human body, so it needs to be improved. Summary of the invention

[0005] In order to process excess chlorine in the production process of sodium dichloroisocyanurate, the present application provides a production system of sodium dichloroisocyanurate.

[0006] The production system of sodium dichloroisocyanurate provided in the present application adopts the following technical scheme:

[0007] A production system of sodium dichloroisocyanurate comprises a reactor for reacting chlorine and trisodium cyanurate, wherein the side wall of the reactor is connected with a feed pipe, the bottom wall of the reactor is connected with an air inlet pipe for introducing chlorine and a discharge pipe for outputting generated materials, the top wall of the reactor is connected with an air outlet pipe, a promotion component is arranged in the reactor, the promotion component is used to improve the reaction mixing degree of chlorine and trisodium cyanurate, the air outlet pipe is connected with a detection device for detecting residual chlorine in waste gas, the detection device is connected with a discharge pipe and a reflux pipe, the end of the reflux pipe away from the detection device passes through the bottom wall of the reactor and is connected with the inside of the reactor, and electromagnetic valves are arranged at the connection points between the discharge pipe and the reflux pipe and the detection device.

[0008] By adopting the above technical solution, trisodium cyanurate used for the reaction is introduced into the reactor through the feed pipe, so that trisodium cyanurate is dissolved in water and forms a trisodium cyanurate aqueous solution, and chlorine is introduced into the reactor through the air inlet pipe, and the chlorine will react with trisodium cyanurate to form trichloroisocyanuric acid, so as to prepare for the subsequent process to continue production and processing; starting the promotion component will increase the reaction mixing degree of chlorine and trisodium cyanurate, improve the utilization rate of chlorine, and consume the chlorine in the reactor as much as possible; the waste gas after production will be discharged from the reactor through the air outlet pipe After the exhaust gas enters the inspection device, the inspection device will detect whether the exhaust gas contains chlorine. If the test is qualified, the exhaust gas will be discharged through the exhaust pipe. If the test is unqualified, the exhaust gas containing chlorine will be passed into the reactor again through the reflux pipe to react to consume the chlorine contained in the exhaust gas. The present application can detect the chlorine content of the exhaust gas while improving the reactivity of chlorine to ensure that the chlorine content in the exhaust gas can be discharged before being discharged, thereby protecting the environment and human health, and having high safety and practicality.

[0009] Preferably, the promotion component includes a rotating motor, a rotating disk, a rotating ring, a plurality of first rotating gear blocks connected to the outer wall of the rotating ring, a plurality of rotating shafts and a plurality of rotating gears, and the rotating shafts and rotating gears correspond to each other one by one; the rotating motor is connected to the top wall inside the reactor, the rotating disk is connected to the output shaft end wall of the rotating motor, the rotating ring is connected to the bottom wall of the rotating disk, one end of the rotating shaft is rotatably connected to the bottom wall inside the reactor, the rotating gear is connected to one end of the corresponding rotating shaft close to the rotating disk, each of the rotating gears is meshed with the first rotating gear block, and the outer wall of the rotating shaft is provided with a plurality of stirring blades.

[0010] By adopting the above technical solution, the rotating motor is started, and the output shaft of the rotating motor will drive the rotating disk to rotate, and the rotating ring will rotate along with the rotating disk. While the rotating ring rotates, the first rotating tooth block meshes with the rotating gear, so that the rotating shaft can be driven to rotate by the rotation of the rotating ring, so that the stirring blades on the peripheral wall of the rotating shaft can stir the solution in the reactor in all directions. When chlorine gas passes through the solution, a large number of bubbles will be generated, and the stirring blades will break these bubbles, so that the chlorine can fully react with a larger area of ​​solution in the reactor, which can effectively increase the utilization rate of chlorine and has high economic benefits. At the same time, the chlorine content in the subsequent exhaust gas is reduced, which can effectively reduce the impact of the exhaust gas on the environment and human health and has high safety.

[0011] Preferably, the promotion component also includes a plurality of connecting plates and a plurality of scraper plates, and the connecting plates and the scraper plates correspond to each other one by one. The plurality of connecting plates are connected to the top wall of the rotating disk, and the ends of the connecting plates facing away from the rotating disk are horizontally bent toward the inner wall of the reactor. The scraper plates are connected to the end walls of the corresponding bent parts of the connecting plates, and the side walls of the scraper plates are against the inner wall of the reactor.

[0012] By adopting the above technical solution, while the rotating disk rotates, the scraper plate will continuously scrape the inner wall of the reactor, so that the trisodium cyanurate attached to the inner wall of the reactor can fall off, thereby timely replenishing the trisodium cyanurate consumed in the solution, so that more chlorine can participate in the reaction, thereby further increasing the reactivity of chlorine, improving the application rate of chlorine, producing more trichloroisocyanuric acid, having higher economic benefits, reducing the content of chlorine in exhaust gas, reducing the damage caused by exhaust gas to the environment and human body, and having higher safety.

[0013] Preferably, the testing device includes a test box, a camera, litmus paper and a control panel, the test box is connected to the air outlet pipe, the exhaust pipe and the reflux pipe, the camera and the litmus paper are both arranged in the test box, the lens of the camera is arranged in the direction of the litmus paper, the control panel is arranged on the outer wall of the test box, and the control panel is electrically connected to the camera and the solenoid valve.

[0014] By adopting the above technical solution, the exhaust gas will pass through the test box through the exhaust pipe and come into contact with the litmus paper in the test box. When the exhaust gas contains chlorine, the litmus paper will turn red, and the camera can capture the phenomenon of the litmus paper and transmit it to the control panel. The color comparison system in the control panel will perform color comparison, so that the chlorine content in the exhaust gas can be obtained according to the degree of color change of the litmus paper. If the emission standard is not met, the control panel will control the solenoid valve at the reflux pipe to open, so that the exhaust gas is passed into the reactor again, so that the chlorine in the exhaust gas reacts with the solution again, and the chlorine content in the exhaust gas is further reduced.

[0015] Preferably, a replacement box is provided on the top wall of the test box, a lifting cylinder is provided in the replacement box, a replacement motor is connected to the piston rod end wall of the lifting cylinder, the lifting cylinder and the replacement motor are electrically connected to the control panel, a replacement disk is sleeved on the outer wall of the output shaft of the replacement motor, a plurality of test paper clamps are provided on the bottom wall of the replacement disk, each of the test paper clamps is clamped with litmus paper, and a replacement slot is penetrated through the top wall of the test box for the test paper clamps to pass through.

[0016] By adopting the above technical solution, a replacement box is provided to replace litmus paper that has changed color, thereby effectively improving the accuracy of the inspection device in detecting the chlorine content in the exhaust gas, reducing the probability of erroneous exhaust gas emission and erroneous backflow, thereby improving the practicality and accuracy of the inspection device of the present application.

[0017] Preferably, a control valve is provided at the connection point between the air inlet pipe and the reflux pipe and the reactor, and the control valve comprises a plug-in pipe, an air inlet box, a piston pipe, a return spring, a tightening plate and an input pipe, one end of the plug-in pipe is inserted into the inner wall of the air inlet pipe or the reflux pipe, an air inlet cavity is provided in the air inlet box, and the other end of the plug-in pipe is inserted into the air inlet cavity; the piston pipe is slidably connected to the inner wall of the plug-in pipe, and both end walls of the piston tube extending out of the plug-in pipe are connected to limiting plates, and the limiting plate on the side of the piston tube away from the air inlet box penetrates through the thickness direction to form an air inlet hole, and the air inlet hole is connected to the air inlet cavity. The piston tube is connected, and the outer wall of one end of the piston tube located at the air inlet box is penetrated by an air outlet along the thickness direction. The clamping plate is connected to the inner wall of the air inlet cavity, one end of the return spring is connected to the bottom wall of the clamping plate, and the other end of the return spring is connected to the limit plate located in the air inlet cavity. After the return spring is compressed, the air outlet will extend out of the plug-in tube; the clamping plate is penetrated by a plurality of flow holes along the thickness direction, the input tube is arranged on the side of the clamping plate away from the plug-in tube and is connected to the air inlet cavity, and the end of the input tube away from the clamping plate passes through the air inlet box and is connected to the inside of the reactor.

[0018] By adopting the above technical solution, setting a control valve can limit the flow direction of chlorine entering the reactor. When the air pressure in the air inlet pipe or the reflux pipe is relatively high, the piston tube will be pushed by the air pressure, causing the piston tube to move toward the air inlet box, thereby compressing the reset spring. At this time, the air outlet will be connected to the air inlet cavity, and chlorine will also enter the air inlet cavity through the piston tube, and pass through the flow hole of the tightening plate into the input pipe, and finally enter the interior of the reactor. By setting a control valve, the present application can effectively improve the problem of easy backfilling inside the reactor, resulting in solution overflow and chlorine gas being unable to fully react, thereby further improving the production safety of the present application.

[0019] Preferably, a sealing gasket is provided at the connection point between the plug-in tube and the air inlet pipe or the return pipe; a sealing sheet is provided on the side of the clamping sheet facing away from the plug-in tube, a plurality of plug-in columns are provided on the bottom wall of the sealing sheet corresponding to the flow holes, a plurality of connecting rods are provided on the surface of the limiting sheet of the piston tube located in the air inlet chamber, the connecting rods pass through the clamping sheet and are connected to the sealing sheet, and the connecting columns will be separated from the flow holes after the reset spring is compressed; a sealing hole is penetrated through the sealing sheet along the thickness direction for the input pipe to pass through, the end wall of the input pipe abuts against the surface of the clamping sheet, and the side wall of the input pipe located in the sealing hole is penetrated by an input hole for the entry of chlorine gas.

[0020] By adopting the above technical scheme, the provision of a sealing gasket and a sealing sheet can effectively improve the airtightness of chlorine when it is input into the reactor, reduce the probability of leakage of chlorine input, reduce the safety hazards in the production process of sodium dichloroisocyanurate, and enable chlorine to be fully utilized, thereby improving the utilization rate of chlorine and having higher safety and economic benefits.

[0021] Preferably, two spiral tubes are arranged in the reactor, the spiral tubes correspond to the input tubes one by one, the spiral tubes are connected with the corresponding input tubes, and a plurality of overflow holes are formed through the side wall of the spiral tube along the thickness direction.

[0022] By adopting the above technical solution, the spiral tube can effectively extend the input path of chlorine and enable the chlorine to contact with a wider range of solutions to improve the reaction mixing degree. When the chlorine leaves the overflow hole, the bubbles generated by the chlorine will also react more fully with the solution under the action of the promotion component. The combination of the two can more effectively improve the reactivity.

[0023] Preferably, the promotion component includes two groups of fixing parts, the fixing parts correspond to the spiral tubes one by one, and the fixing parts are used to drive the spiral tubes to rotate.

[0024] By adopting the above technical solution, the fixing part can fix the spiral tube on the one hand, thereby reducing the probability of the spiral tube colliding with the stirring blade due to the stirring of the liquid inside the reactor, thereby improving production safety; on the other hand, the spiral tube is driven to rotate by the fixing part, so that the chlorine can be diffused over a wider range, thereby further increasing the contact area between the chlorine and the solution, further improving the mixing degree, and helping to improve the utilization rate of the chlorine.

[0025] Preferably, the fixing member includes a fixed disk 1 and a fixed disk 2, the spiral tube is arranged between the fixed disk 1 and the fixed disk 2, the inner wall of the rotating ring is provided with a second rotating tooth block along the circumferential direction, the top wall of the fixed disk 1 is provided with a driven gear, the driven gear is meshed with the second rotating tooth block, and the fixed disk 2 is rotatably connected to the bottom wall inside the reactor; one end of the input pipe passes through the fixed disk 2 and is connected to the spiral tube, the input pipe passes through the inner wall of the fixed disk 2 at one end and is provided with a bearing, one end of the spiral tube is inserted into the inner ring of the bearing and is rotatably connected to the input pipe through the bearing; a plurality of limit shafts are arranged between the fixed disk 1 and the fixed disk 2, the plurality of limit shafts are all arranged in the spiral part of the spiral tube, and the limit shafts are against the spiral rod.

[0026] By adopting the above technical solution, the fixed disk one and the fixed disk two are connected by the limiting shaft. When the rotating ring rotates, the meshing relationship between the driven gear and the second rotating gear block will drive the fixed disk one and the fixed disk two to rotate together, so that the fixing member can drive the spiral tube to rotate. The structure is simple and can cooperate with the rotation of the rotating shaft, further improving the diffusion of chlorine in the solution, improving the progress of the reaction, helping to improve the utilization rate of chlorine, and having high economic benefits.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. By setting the promotion component and the spiral tube, the degree of reaction between chlorine and trisodium cyanurate solution can be effectively improved, and the utilization rate of chlorine can be improved. On the one hand, the production efficiency of the present application can be improved, and it has high economic benefits. On the other hand, when the tail gas generated by the reaction has a low chlorine content, it will reduce the impact on the environment and human body, and has high safety.

[0029] 2. The inspection device can detect the exhaust gas generated during the production process. The exhaust gas can be discharged only when the test result is qualified. If the test result is unqualified, the exhaust gas will be reintroduced into the reactor for further reaction, which can further improve the utilization rate of chlorine and ensure that the chlorine content in the exhaust gas meets the standard before it can be discharged, which has higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a sodium dichloroisocyanurate production system of an embodiment of the present application.

[0031] Figure 2 It is a schematic diagram of the internal structure of the reactor of the embodiment of the present application.

[0032] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle.

[0033] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle.

[0034] Figure 5 It is a schematic diagram of the structure of the spiral tube of an embodiment of the present application.

[0035] Figure 6 It is a schematic structural diagram of the bottom wall of the rotating disk of an embodiment of the present application.

[0036] Description of the reference numerals: 1. Reactor; 11. Feed pipe; 12. Air inlet pipe; 13. Discharge pipe; 14. Air outlet pipe; 15. Discharge pipe; 16. Reflux pipe; 17. Solenoid valve; 2. Promotion assembly; 21. Rotating motor; 22. Rotating disk; 23. Rotating ring; 231. First rotating gear block; 232. Second rotating gear block; 24. Rotating shaft; 241. Stirring blade; 25. Rotating gear; 26. Connecting plate; 27. Scraper plate; 28. Fixing member; 281. Fixed disk 1; 2811. Driven gear; 2812. Limiting shaft; 282. Fixed disk 2; 3. Inspection device; 31. Inspection box; 311. Replacement slot; 3 2. Camera; 33. Litmus paper; 34. Control panel; 4. Replacement box; 41. Lifting cylinder; 42. Replacement motor; 43. Replacement disk; 44. Test paper clamp; 5. Control valve; 51. Plug-in tube; 511. Sealing gasket; 52. Inlet box; 521. Inlet cavity; 53. Piston tube; 531. Limiting plate; 5311. Inlet hole; 5312. Linking rod; 532. Exhaust hole; 54. Reset spring; 55. Tightening plate; 551. Flow hole; 56. Input tube; 561. Input hole; 562. Bearing; 57. Sealing plate; 571. Plug-in column; 572. Sealing hole; 6. Spiral tube; 61. Overflow hole. DETAILED DESCRIPTION

[0037] The following is combined with Figure 1-6 This application is described in further detail.

[0038] The present application embodiment discloses a production system of sodium dichloroisocyanurate. Figure 1 A production system of sodium dichloroisocyanurate includes a reactor 1, which is used to react chlorine and trisodium cyanurate to produce trichloroisocyanuric acid in the production process of sodium dichloroisocyanurate. The side wall of the reactor 1 is connected with a feed pipe 11, which is used to input trisodium cyanurate into the reactor 1 and dissolve in the water inside the reactor 1 to form a trisodium cyanurate solution. The bottom wall of the reactor 1 is connected with an air inlet pipe 12 for introducing chlorine. After entering the reactor 1, the chlorine will pass through the trisodium cyanurate solution, thereby being able to fully react with the trisodium cyanurate solution to improve the utilization rate of chlorine. The bottom wall of the reactor 1 is connected with a discharge pipe 13, which is used to output the trichloroisocyanuric acid generated by the reaction. In this embodiment, a valve is provided on the discharge pipe 13 to control the opening and closing of the discharge pipe 13.

[0039] Reference Figure 1 and Figure 2The top wall of the reactor 1 is connected with an outlet pipe 14, and the tail gas after the reaction of chlorine and trisodium cyanurate solution will be discharged from the reactor 1 through the outlet pipe 14. The outlet pipe 14 is connected with a test device 3 for detecting residual chlorine in the exhaust gas. The test device 3 includes a test box 31, a camera 32, a litmus paper 33 and a control panel 34;

[0040] Reference Figure 1 and Figure 3 , the test box 31 is communicated with the air outlet pipe 14, the camera 32 is arranged on the top wall inside the test box 31, and the control panel 34 is arranged on the outer wall of the test box 31 and is electrically connected to the camera 32; the top wall of the test box 31 is provided with a replacement box 4 by welding, the top wall inside the replacement box 4 is connected with a lifting cylinder 41 by welding, the piston rod end wall of the lifting cylinder 41 is connected with a replacement motor 42 by welding, the lifting cylinder 41 and the replacement motor 42 are both electrically connected to the control panel 34, the outer wall of the output shaft of the replacement motor 42 is provided with a replacement disk 43 by key connection, the bottom wall of the replacement disk 43 is connected with a plurality of test paper clamps 44 by welding, and the plurality of test paper clamps 44 are evenly arranged along the circumferential direction of the replacement disk 43, the litmus paper 33 is arranged in the test paper clamps 44, and a replacement through slot 311 for the test paper clamps 44 to pass through is opened through the top wall of the test box 31, and the litmus paper 33 can be inserted into the test box 31 through the replacement through slot 311.

[0041] Reference Figure 1 and Figure 3 The lens of the camera 32 is set toward the direction of the litmus paper 33. When the exhaust gas enters the test box 31 through the intake pipe, it will contact the litmus paper 33. If the chlorine content in the exhaust gas is high, the litmus paper 33 will turn red, and the color change process of the litmus paper 33 will be recorded by the camera 32, and the image will be transmitted to the control panel 34. The control panel 34 analyzes the chlorine content in the exhaust gas according to the speed of the color change of the litmus paper 33 and the depth of the red. The test box 31 is also connected to a discharge pipe 15 and a reflux pipe 16. A solenoid valve 17 is provided at the connection points between the discharge pipe 15 and the reflux pipe 16 and the test box 31. The solenoid valve 17 is electrically connected to the control panel 34. When the chlorine content in the exhaust gas is tested to be qualified, the control panel 34 will open the solenoid valve 17 at the discharge pipe 15 to discharge the exhaust gas. If the test result is unqualified, the control panel 34 will open the solenoid valve 17 at the reflux pipe 16. The end of the reflux pipe 16 away from the test box 31 passes through the bottom wall of the reactor 1 and is connected to the inside of the reactor 1, so that the exhaust gas can be re-introduced into the reactor 1 for reaction to reduce the chlorine content in the exhaust gas until the emission standard is met. When there is no exhaust gas inside the test box 31, the litmus paper 33 will be replaced by the lifting cylinder 41 and the replacement motor 42.

[0042] Reference Figure 2 and Figure 4 A control valve 5 is provided at the connection point between the air inlet pipe 12 and the reflux pipe 16 and the reactor 1. The control valve 5 includes a plug-in pipe 51, an air inlet box 52, a piston pipe 53, a return spring 54, a tightening sheet 55 and an input pipe 56; one end of the plug-in pipe 51 is inserted into the inner wall of the air inlet pipe 12 or the reflux pipe 16 and abuts against the inner wall, and a sealing gasket 511 is provided at the connection point between the plug-in pipe 51 and the air inlet pipe 12 or the reflux pipe 16. The sealing gasket 511 is used to improve the air tightness between the air inlet pipe 12 or the reflux pipe 16 and the plug-in pipe 51, thereby reducing the probability of leakage of chlorine or tail gas when it is input into the reactor 1.

[0043] Reference Figure 2 and Figure 4 An air intake chamber 521 is provided in the air intake box 52, and the other end of the plug-in tube 51 is inserted into the air intake chamber 521 and connected to the air intake box 52 by welding. The piston tube 53 is slidably connected to the inner wall of the plug-in tube 51. Both ends of the piston tube 53 can extend out of the plug-in tube 51 as the piston tube 53 slides. The end walls of both ends of the piston tube 53 extending out of the plug-in tube 51 are connected to limiting plates 531 by welding. The limiting plates 531 located in the air intake pipe 12 or the reflux pipe 16 penetrate through the thickness direction to form an air intake hole 5311. The air intake hole 5311 is connected to the piston tube 53, and chlorine or exhaust gas can enter the piston tube 53 through the air intake hole 5311.

[0044] Reference Figure 2 and Figure 4 The outer wall of the piston tube 53 at one end of the air inlet box 52 is penetrated by a plurality of air outlet holes 532 along the thickness direction. When the piston tube 53 slides into the air inlet chamber 521, the air outlet holes 532 will extend out of the plug-in tube 51, so that chlorine or tail gas can enter the air inlet chamber 521; the tightening piece 55 is connected to the inner wall of the air inlet chamber 521 by welding, one end of the return spring 54 is connected to the bottom wall of the tightening piece 55 by gluing, and the other end of the return spring 54 is connected to the limiting piece 531 located in the air inlet chamber 521 by gluing. When the return spring 54 is compressed, the air outlet holes 532 will extend out of the plug-in tube 51, so that chlorine or tail gas can smoothly enter the air inlet chamber 521.

[0045] Reference Figure 2 and Figure 4The clamping piece 55 is penetrated along the thickness direction with a plurality of flow holes 551 for chlorine or tail gas to pass through. A sealing piece 57 is arranged on the side of the clamping piece 55 away from the plug-in tube 51. The bottom wall of the sealing piece 57 is integrally formed with a plurality of plug-in columns 571 corresponding to the flow holes 551. The plug-in columns 571 are adapted to the flow holes 551. The surface of the limiting piece 531 of the piston tube 53 located in the air inlet chamber 521 is connected with two connecting rods 5312 by welding. The connecting rod 5312 passes through the clamping piece 55 and is connected to the sealing piece 57. After the reset spring 54 is compressed, the connecting rod 5312 will push the sealing piece 57 under the push of the limiting piece 531, so that the plug-in column 571 is separated from the flow hole 551. At this time, the gas can enter the top of the clamping piece 55, and the solution can also be prevented from being refilled, thereby effectively improving the safety.

[0046] Reference Figure 2 and Figure 4 The input pipe 56 is arranged on the side of the clamping piece 55 away from the plug-in pipe 51 and is connected with the air inlet chamber 521. The other end of the input pipe 56 is connected with the inside of the reactor 1. The sealing sheet 57 is penetrated along the thickness direction to open a sealing hole 572 for the input pipe 56 to pass through. The end wall of the input pipe 56 inserted into the sealing hole 572 is abutted against the surface of the clamping piece 55. The side wall of the input pipe 56 located in the sealing hole 572 is penetrated to open an input hole 561 for chlorine gas to enter. When the plug-in column 571 is separated from the flow hole 551, the gas can enter the input pipe 56 through the input hole 561 and then enter the reactor 1, realizing the one-way input of chlorine or tail gas, which helps to improve the reaction efficiency.

[0047] Reference Figure 4 and Figure 5 Two spiral tubes 6 are arranged in the reactor 1. The spiral tubes 6 correspond to the input pipes 56 one by one. The spiral tubes 6 are connected with the corresponding input pipes 56. A plurality of overflow holes 61 for gas to pass through are opened in the side wall of the spiral tube 6 along the thickness direction. The plurality of overflow holes 61 are evenly distributed along the length direction of the spiral tube 6, so as to extend the contact area between the chlorine gas or the tail gas and the solution, thereby improving the reaction efficiency of the chlorine gas, improving the yield, and effectively protecting the environment and human health.

[0048] Reference Figure 2 and Figure 6A promoting component 2 for improving the mixing degree of the reaction between chlorine and trisodium cyanurate is arranged in the reactor 1. The promoting component 2 includes a rotating motor 21, a rotating disk 22, a rotating ring 23, a plurality of first rotating gear blocks 231 integrally formed on the outer wall of the rotating ring 23, a plurality of second rotating gear blocks 232 connected and integrally formed on the inner wall of the rotating ring 23, a plurality of rotating shafts 24, a plurality of rotating gears 25 and two sets of fixing members 28, wherein the rotating shafts 24 and the rotating gears 25 correspond to each other one by one, and the fixing members 28 and the spiral rods correspond to each other one by one, so as to drive the spiral tube 6 to rotate while fixing the spiral tube 6.

[0049] Reference Figure 2 and Figure 6 The base of the rotating motor 21 is connected to the top wall inside the reactor 1 by welding, the rotating disk 22 is connected to the output shaft end wall of the rotating motor 21 by key connection, the rotating ring 23 is connected to the bottom wall of the rotating disk 22 by welding and is coaxially arranged with the rotating disk 22, one end of the rotating shaft 24 is rotatably connected to the bottom wall inside the reactor 1 through a bearing 562, the rotating gear 25 is connected to the corresponding rotating shaft 24 close to one end wall of the rotating disk 22 by welding, and is meshed with the first rotating gear block 231, and the rotation of the rotating ring 23 can drive the rotating gear 25 to rotate, thereby causing the rotating shaft 24 to rotate, and the outer wall of the rotating shaft 24 is integrally formed with a plurality of stirring blades 241, and the bubbles formed by the gas can be dispersed by the stirring blades 241, so that the gas reacts with a larger area of ​​solution, thereby further improving the utilization rate of the chlorine gas.

[0050] Reference Figure 2 and Figure 6 The fixing member 28 includes a fixing plate 1 281 and a fixing plate 282. One end of the spiral tube 6 is connected to the bottom wall of the fixing plate 1 281 by welding. The spiral tube 6 is arranged between the fixing plate 1 281 and the fixing plate 282. A driven gear 2811 is arranged on the top wall of the fixing plate 1 281 by welding. The driven gear 2811 is meshed with the second rotating gear block 232 on the inner wall of the rotating ring 23, so that the fixing plate 1 281 can be driven to rotate by the rotation of the rotating ring 23. Two limiting shafts 2812 are integrally formed on the bottom wall of the fixing plate 1 281. The other end of the limiting shaft 2812 is connected to the top wall of the fixing plate 2 282 by welding. The limiting shaft 2812 is connected to the inner wall of the spiral tube 6 by welding. The fixing plate 2 282 is rotatably connected to the bottom wall inside the reactor 1 through a bearing.

[0051] Reference Figure 2 and Figure 6One end of the input pipe 56 passes through the fixed disk 282 and is connected to the spiral tube 6. A bearing 562 is provided on the inner wall of one end of the input pipe 56 passing through the fixed disk 282. One end of the spiral tube 6 is inserted into the inner ring of the bearing 562 and is rotatably connected to the input pipe 56 through the bearing 562. When the spiral tube 6 rotates, the diffusion range of chlorine or tail gas can be further increased, thereby further increasing the contact area between chlorine and solution, thereby improving the utilization rate of chlorine.

[0052] Reference Figure 2 and Figure 6 The promotion component 2 also includes two connecting plates 26 and two scraper plates 27. The connecting plates 26 and the scraper plates 27 correspond to each other one by one. One end of the connecting plate 26 is connected to the top wall of the rotating disk 22 by welding. The end of the connecting plate 26 away from the rotating disk 22 is horizontally bent toward the inner wall of the reactor 1. The scraper plates 27 are connected to the end wall of the bent portion of the corresponding connecting plate 26 by welding. The side wall of one side of the scraper plates 27 is against the inner wall of the reactor 1, so that the material attached to the inner wall of the reactor 1 can be scraped off, thereby increasing the concentration of the solution, facilitating the reaction of more chlorine, and improving the utilization rate of chlorine.

[0053] The implementation principle of the production system of sodium dichloroisocyanurate in the embodiment of the present application is as follows: chlorine is introduced into the reactor 1 through the air inlet pipe, and reacts with trisodium cyanurate to generate products required in the subsequent production process. During the reaction, the promoting component 2 can increase the contact area between the chlorine and the trisodium cyanurate solution to improve the reaction mixing degree and the utilization rate of the chlorine, thereby increasing the product yield and reducing the content of chlorine in the generated tail gas;

[0054] The exhaust gas generated by the reaction will be discharged into the inspection device 3 through the outlet pipe 14. When the inspection result is qualified, the control panel 34 will open the solenoid valve 17 of the exhaust pipe 15 to discharge the exhaust gas. When the inspection result is unqualified, the control panel 34 will open the solenoid valve 17 of the reflux pipe 16, and re-introduce the exhaust gas into the reactor 1 for reaction, thereby consuming the chlorine content in the exhaust gas until it passes the inspection. In this way, the chlorine content in the production process can be controlled, the environment and human health can be protected, and it has a high degree of safety.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A production system of sodium dichloroisocyanurate, comprising a reactor (1) for reacting chlorine and trisodium cyanurate, wherein the side wall of the reactor (1) is connected to a feed pipe (11), the bottom wall of the reactor (1) is connected to an air inlet pipe (12) for introducing chlorine and a discharge pipe (13) for discharging generated materials, and the top wall of the reactor (1) is connected to an air outlet pipe (14), characterized in that: The reactor (1) is provided with a promotion component (2), the promotion component (2) is used to increase the reaction mixing degree of chlorine and trisodium cyanurate, the outlet pipe (14) is connected to a detection device (3) for detecting residual chlorine in the exhaust gas, the detection device (3) is connected to a discharge pipe (15) and a reflux pipe (16), the end of the reflux pipe (16) away from the detection device (3) passes through the bottom wall of the reactor (1) and is connected to the inside of the reactor (1), and the discharge pipe (15) and the reflux pipe (16) are both provided with a solenoid valve (17) at the connection point with the detection device (3); The promotion component (2) comprises a rotating motor (21), a rotating disk (22), a rotating ring (23), a plurality of first rotating gear blocks (231) connected to the outer wall of the rotating ring (23), a plurality of rotating shafts (24) and a plurality of rotating gears (25), wherein the rotating shafts (24) and the rotating gears (25) correspond to each other one by one; the rotating motor (21) is connected to the top wall inside the reaction kettle (1), the rotating disk (22) is connected to the output shaft end wall of the rotating motor (21), the rotating ring (23) is connected to the bottom wall of the rotating disk (22), one end of the rotating shaft (24) is rotatably connected to the bottom wall inside the reaction kettle (1), the rotating gear (25) is connected to one end of the corresponding rotating shaft (24) close to the rotating disk (22), each of the rotating gears (25) is meshed with the first rotating gear block (231), and the outer wall of the rotating shaft (24) is provided with a plurality of stirring blades (241); A control valve (5) is provided at the connection point between the air inlet pipe (12) and the return pipe (16) and the reactor (1). The control valve (5) comprises a plug-in pipe (51), an air inlet box (52), a piston pipe (53), a return spring (54), a tightening sheet (55) and an input pipe (56). One end of the plug-in pipe (51) is inserted into the inner wall of the air inlet pipe (12) or the return pipe (16). The air inlet box (52) is provided with an air inlet valve. The plug tube (51) is inserted into the air inlet cavity (521); the piston tube (53) is slidably connected to the inner wall of the plug tube (51); both end walls of the piston tube (53) extending out of the plug tube (51) are connected to limiting plates (531); the limiting plate (531) on one side of the piston tube (53) away from the air inlet box (52) is penetrated along the thickness direction to form an air inlet hole (5311); the air inlet hole ( 5311) is connected to the piston tube (53), and the outer wall of one end of the piston tube (53) located at the air inlet box (52) is penetrated by an air outlet hole (532) in the thickness direction. The retaining plate (55) is connected to the inner wall of the air inlet chamber (521), one end of the return spring (54) is connected to the bottom wall of the retaining plate (55), and the other end of the return spring (54) is connected to the limit plate (531) located in the air inlet chamber (521). After the return spring (54) is compressed, the air outlet hole (532) will extend out of the plug-in tube (51); the retaining plate (55) is penetrated by a plurality of flow holes (551) in the thickness direction, and the input tube (56) is arranged on the side of the retaining plate (55) away from the plug-in tube (51) and is communicated with the air inlet chamber (521). The end of the input tube (56) away from the retaining plate (55) passes through the air inlet box (52) and is communicated with the interior of the reactor (1).

2. A production system of sodium dichloroisocyanurate according to claim 1, characterized in that: The promotion component (2) further comprises a plurality of connecting plates (26) and a plurality of scraper plates (27), wherein the connecting plates (26) and the scraper plates (27) correspond to each other one by one, and the plurality of connecting plates (26) are all connected to the top wall of the rotating disk (22), and the ends of the connecting plates (26) facing away from the rotating disk (22) are all horizontally bent toward the inner wall of the reaction kettle (1), and the scraper plates (27) are connected to the end walls of the bent portions of the corresponding connecting plates (26), and the side walls of one side of the scraper plates (27) are in contact with the inner wall of the reaction kettle (1).

3. A production system of sodium dichloroisocyanurate according to claim 1, characterized in that: The testing device (3) comprises a testing box (31), a camera (32), a litmus paper (33) and a control panel (34); the testing box (31) is connected to an air outlet pipe (14), a discharge pipe (15) and a return pipe (16); the camera (32) and the litmus paper (33) are both arranged in the testing box (31); the lens of the camera (32) is arranged in the direction of the litmus paper (33); the control panel (34) is arranged on the outer wall of the testing box (31); and the control panel (34) is electrically connected to the camera (32) and the solenoid valve (17).

4. A production system of sodium dichloroisocyanurate according to claim 3, characterized in that: The top wall of the test box (31) is provided with a replacement box (4), a lifting cylinder (41) is provided in the replacement box (4), a replacement motor (42) is connected to the piston rod end wall of the lifting cylinder (41), the lifting cylinder (41) and the replacement motor (42) are both electrically connected to the control panel (34), a replacement disk (43) is sleeved on the outer wall of the output shaft of the replacement motor (42), a plurality of test paper clamps (44) are provided on the bottom wall of the replacement disk (43), each of the test paper clamps (44) is clamped with litmus paper (33), and a replacement through slot (311) is provided through the top wall of the test box (31) for the test paper clamps (44) to pass through.

5. A production system of sodium dichloroisocyanurate according to claim 1, characterized in that: A sealing gasket (511) is provided at the connection point between the plug-in tube (51) and the air inlet tube (12) or the return tube (16); a sealing sheet (57) is provided on the side of the abutting sheet (55) facing away from the plug-in tube (51); a plurality of plug-in columns (571) are provided on the bottom wall of the sealing sheet (57) corresponding to the flow hole (551); a plurality of connecting rods (5312) are provided on the surface of the limiting sheet (531) of the piston tube (53) located in the air inlet chamber (521); and the connecting rods (5312) are provided on the surface of the limiting sheet (531) of the piston tube (53) ) passes through the abutment sheet (55) and is connected to the sealing sheet (57). After the return spring (54) is compressed, the plug-in column (571) will be separated from the circulation hole (551). The sealing sheet (57) is penetrated along the thickness direction to form a sealing hole (572) for the input pipe (56) to pass through. The end wall of the input pipe (56) is in contact with the surface of the abutment sheet (55). The side wall of the input pipe (56) located in the sealing hole (572) is penetrated to form an input hole (561) for the chlorine gas to enter.

6. A production system of sodium dichloroisocyanurate according to claim 5, characterized in that: Two spiral tubes (6) are arranged in the reaction kettle (1), and the spiral tubes (6) correspond to the input tubes (56) one by one. The spiral tubes (6) are connected to the corresponding input tubes (56), and a plurality of overflow holes (61) are formed through the side wall of the spiral tube (6) along the thickness direction.

7. A production system of sodium dichloroisocyanurate according to claim 5, characterized in that: The promotion component (2) comprises two groups of fixing members (28), the fixing members (28) corresponding to the spiral tubes (6) one by one, and the fixing members (28) are used to drive the spiral tubes (6) to rotate.

8. A production system of sodium dichloroisocyanurate according to claim 7, characterized in that: The fixing member (28) comprises a fixing disk 1 (281) and a fixing disk 2 (282); the spiral tube (6) is arranged between the fixing disk 1 (281) and the fixing disk 2 (282); a second rotating tooth block (232) is arranged on the inner wall of the rotating ring (23) along the circumferential direction; a driven gear (2811) is arranged on the top wall of the fixing disk 1 (281); the driven gear (2811) is meshed with the second rotating tooth block (232); the fixing disk 2 (282) is rotatably connected to the inner bottom wall of the reaction kettle (1); one end of the input pipe (56) is The input pipe (56) passes through the second fixed disk (282) and is connected to the spiral tube (6); the inner wall of one end of the input pipe (56) passing through the second fixed disk (282) is provided with a bearing (562); one end of the spiral tube (6) is inserted into the inner ring of the bearing (562) and is rotatably connected to the input pipe (56) through the bearing (562); a plurality of limiting shafts (2812) are provided between the first fixed disk (281) and the second fixed disk (282); the plurality of limiting shafts (2812) are all provided in the spiral portion of the spiral tube (6), and the limiting shafts (2812) are against the spiral rod.

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