Bromochlorohydantoin continuous production equipment and production method

Abstract

The invention relates to the technical field of bromochlorohydantoin production, and discloses bromochlorohydantoin continuous production equipment and a production method.The bromochlorohydantoin continuous production equipment comprises a reaction kettle, a drying cavity and a reaction cavity which are separated are formed in the upper side and the lower side in the reaction kettle correspondingly, and a jacket is arranged on the lower wall of the reaction cavity; the left end and the right end of the reaction kettle are fixedly connected with first circulating flow pipes communicating with an inner cavity of the jacket, the lower wall of the reaction cavity is fixedly connected with a liquid inlet pipe and a first temperature sensor, the top of the drying cavity is fixedly connected with a hollow synthesis kettle, and the top of an inner cavity of the synthesis kettle is rotationally connected with a first stirring shaft. An electromagnetic valve groove is formed in the left wall of the synthesis kettle. According to the invention, raw material mixing, bromine chlorination reaction and filtering and drying processes are integrated into the same reaction kettle, the overall treatment efficiency is high, continuous production of bromochlorohydantoin can be rapidly carried out, and heat of the reaction cavity and the synthesis kettle is used for drying, so that cooling energy consumption can be reduced, and energy utilization is optimized and controlled.

Description

Technical Field

[0001] The invention relates to the technical field of bromochlorohydantoin production, and in particular to a bromochlorohydantoin continuous production device and a production method. Background Art

[0002] Halogenated hydantoin is a class of highly effective disinfectants, fungicides and algaecides, of which the most representative is bromochlorohydantoin (its chemical name is 1-bromo-3-chloro-5,5-dimethylhydantoin). As a high-performance disinfectant, fungicides and algaecides, bromochlorohydantoin has the advantages of broad spectrum, high efficiency, fast action speed, wide applicable pH range, no foaming, good compatibility with scale inhibitors and corrosion inhibitors, insensitivity to organic matter and nitrogen-containing compounds in water, and easy management and control. Therefore, it is widely used in industrial water treatment and disinfection of mineral springs (hot springs) baths, and can also be used for various water treatments, toilet disinfection and deodorization, disinfection and bleaching, and in agriculture for disinfection and sterilization of flowers and seeds, aquaculture, and fruit preservation.

[0003] Authorized patent CN110305065A discloses a continuous production device and method of bromochlorohydantoin, belonging to the technical field of bromochlorohydantoin production. Water, 5,5-dimethylhydantoin and alkali are added into a dissolving-brominating kettle in proportion, and a brominating agent is added after stirring and dissolving. The obtained absorption kettle reserve liquid is continuously pumped into the absorption kettle, and then discharged from the bottom valve of the absorption kettle and pumped into the absorption kettle through an ejector to form a cycle; the ejector air intake port is connected with the exhaust port of the synthesis kettle to make the synthesis kettle in a negative pressure state; chlorine gas is filled into the synthesis kettle to react with the material for chlorination reaction; the material after the chlorination reaction is deliquated and dried to obtain the bromochlorohydantoin finished product.

[0004] When the bromochlorohydantoin in the above patent is continuously produced, the mixing of raw materials, bromine chlorination and subsequent dehydration and drying processes all need to be transported to different mechanisms for processing. Various processing mechanisms are relatively independent and scattered, the transportation and transfer path is relatively long, and the processing efficiency is low; the drying of the crude bromochlorohydantoin needs to be transferred to a specific drying equipment. Since the raw material processing before drying requires corresponding cooling and temperature reduction, the heat from the raw material processing is easily wasted, and additional energy consumption is required for subsequent heating and drying, resulting in poor energy utilization. Summary of the invention

[0005] The purpose of the present invention is to solve the problems of low processing efficiency and poor energy utilization effect in the general continuous production of bromochlorohydantoin, and the present invention provides a continuous production device and a production method for bromochlorohydantoin.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A bromine-chlorine-hydantoin continuous production device comprises a reactor, wherein the upper and lower sides of the reactor are respectively provided with a drying chamber and a reaction chamber separated from each other, the lower wall of the reaction chamber is provided with a jacket, the left and right ends of the reactor are fixedly connected with a circulation pipe communicating with the inner cavity of the jacket, the lower wall of the reaction chamber is respectively fixedly connected with a liquid inlet pipe and a temperature sensor, the top of the drying chamber is fixedly connected with a hollow synthesis reactor, the top of the inner cavity of the synthesis reactor is rotatably connected with a stirring shaft, the left wall of the synthesis reactor is provided with a solenoid valve groove, the outer wall of the synthesis reactor is provided with a cooling chamber, the front and rear sides of the top of the cooling chamber are fixedly plugged with a circulation pipe, the upper wall of the right side of the synthesis reactor is respectively fixedly connected with a temperature sensor, a pH sensor, a chlorine pipe and a bromine pipe, the top of the inner cavity of the synthesis reactor is provided with a collecting chamber, and the top of the collecting chamber is fixedly plugged with a suction pipe; A liquid collecting cover is fixedly connected in the drying chamber, a liquid drain pipe is fixedly connected to the left wall of the liquid collecting cover, a filter tooth cover is rotatably connected to the inner wall of the liquid collecting cover, a plurality of material ports are provided on the top circumference of the filter tooth cover, a scraper tooth cover is rotatably connected between the filter tooth cover and the synthesis kettle, a rotary vane is provided on the periphery of the scraper tooth cover, a spray hole is provided on the scraper tooth cover, a plurality of diffusion grooves are provided on the bottom circumference of the scraper tooth cover, a washing liquid chamber and a convergence chamber are respectively provided between the scraper tooth cover and the synthesis kettle from top to bottom, and a washing liquid pipe is provided on the top right side of the washing liquid chamber; A T-shaped liquid pipe fixedly connected to the synthesis kettle is arranged at the top of the collecting chamber, a spiral conveying pipe is rotatably connected to the bottom of the T-shaped liquid pipe, a sleeve adapted to the spiral conveying pipe is fixedly connected to the top of the inner cavity of the synthesis kettle, a notch is provided on the top side wall of the sleeve, a second stirring shaft is fixedly connected to the bottom of the spiral conveying pipe, the second stirring shaft is rotatably installed in the middle of the reaction chamber, an inverted T-shaped groove communicating with the spiral conveying pipe is provided in the middle of the second stirring shaft, a liquid pump sleeved on the second stirring shaft is fixedly connected to the bottom of the reaction chamber, an outer cone disk is rotatably connected to the bottom of the drying chamber, an inner cone disk is rotatably connected to the inner wall of the outer cone disk, and the spiral conveying pipe is rotatably plugged in the middle of the inner cone disk.

[0007] Furthermore, the heights of the liquid collecting cover and the rotary blades are both lower than the height of the top material opening of the filter tooth cover.

[0008] Furthermore, the upper wall of the synthesis reactor is rotatably connected with a rotating shaft, and a gear 1 and a gear 2 are fixedly sleeved on the rotating shaft respectively, the gear 1 is meshingly connected with the filtering tooth cover, and the gear 2 is meshingly connected with the scraping tooth cover; A motor 1 is installed on the upper wall of the reaction kettle, a transmission belt 1 is movably sleeved between the output end of the motor 1 and the rotating shaft, and a transmission belt 2 is movably sleeved between the rotating shaft and the stirring shaft 1.

[0009] Furthermore, a bracket is fixedly connected to the bottom of the reactor, a baffle corresponding to the top material opening of the filter tooth cover is arranged on the upper wall of the drying chamber in the reactor, and a motor 2 for driving the stirring shaft 2 is arranged at the bottom of the reactor.

[0010] Furthermore, an electromagnetic ring is fixedly connected to the bottom of the inner cone disk, a magnetic plate is slidably connected to the bottom of the inner cone disk, an abutment spring is fixedly connected between the magnetic plate and the electromagnetic ring, a friction cone groove is provided on the top of the second stirring shaft, and a friction cone convex movably abutted with the friction cone groove is provided at the bottom of the magnetic plate; The inner wall of the outer cone disk is provided with a friction ring groove movably connected to the magnetic plate.

[0011] Furthermore, a groove is provided in the middle of the inner cone, the bottom of the sleeve is located in the groove, and a gap is provided between the bottom of the sleeve and the lower wall of the groove; A plurality of groups of stirring rods in a circumferential array are fixedly connected to the periphery of the sleeve, and the stirring rods are located inside the collecting chamber.

[0012] Furthermore, a drum is rotatably connected to the middle of the synthesis reactor, a tray movably sleeved on the sleeve is fixedly connected to the inner cavity of the drum, the tray constitutes the lower wall of the collection chamber, and the upper wall of the collection chamber is provided with steam holes.

[0013] Furthermore, a connecting rod is fixedly connected between the bottom of the drum and the outer cone disk, a plurality of inclined grooves in a circumferential array are provided on the periphery of the bottom of the drum, a guide ring is slidably engaged with the bottom of the synthesis reactor, and a pin column movably engaged with the inclined groove is fixedly connected to the inner wall of the guide ring; The bottom of the scraper tooth cover is rotatably connected to a plurality of tooth columns in a circular array, the tooth columns are meshingly connected to the filter tooth cover, the tooth columns are provided with winding grooves connected end to end, a movable ring is movably sleeved between the tooth columns, the movable ring is provided with a pin protrusion movably engaged with the winding groove, and the movable ring is rotatably connected to the guide ring.

[0014] A continuous production method of bromochlorohydantoin comprises the following steps: S1, inputting a certain amount of 5,5-dimethylhydantoin, an inorganic base and water into the reaction chamber through the liquid inlet pipe, and controlling the stirring shaft 2 to stir the solution in the reaction chamber, and controlling the two circulation pipes 1 to pass a coolant into the jacket for circulation cooling, during which the temperature sensor 1 monitors the solution temperature; S2, when it is monitored that the temperature of the solution in the reaction chamber drops to 20-25°C, the solution is transferred to the synthesis reactor by the liquid pump. After the solution is completely transferred, the bromine tube and the chlorine tube are controlled to respectively introduce bromine and chlorine gas into the synthesis reactor in sequence. During this period, the stirring shaft 1 is controlled to continuously stir the solution, the pH sensor automatically monitors the pH value of the solution, the temperature sensor 2 automatically monitors the temperature of the solution, and the two circulation pipes 2 are controlled to circulate and cool the coolant introduced into the cooling chamber. The circulation rate is automatically adjusted according to the feedback temperature of the temperature sensor 2, and the reaction temperature of the synthesis reactor is controlled at 25-30°C; S3, after the bromine and chlorine are introduced, the electromagnetic valve slot is controlled to open, and the filter tooth cover and the scraper tooth cover are controlled to rotate in the same direction, and the liquid is thrown out into the liquid collecting cover through the filter tooth cover based on centrifugal force, and is discharged through the drain pipe, and the bromine chlorine hydrazine crude product is filtered inside the filter tooth cover and pushed upward by the rotary blade, during which the washing liquid pipe is controlled to input deionized water through each of the spray holes to rinse the bromine chlorine hydrazine crude product; S4, when the crude bromochlorohydantoin is pushed to the material port at the top of the filter tooth cover, it is automatically thrown out and falls onto the outer cone disk based on the centrifugal force, the outer cone disk is controlled to deflect back and forth, and the inner cone disk is controlled to rotate continuously, so that the crude bromochlorohydantoin is continuously thrown and dried by the heat of the reaction chamber; S5. Before the next batch of solution in the synthesis reactor is output, the inner cone is controlled to reciprocate, and the spiral conveying pipe automatically conveys the dried bromochlorohydantoin to the collecting chamber for further drying. Subsequently, the suction pipe is controlled to extract the dried bromochlorohydantoin to obtain a finished product.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention integrates the mixing of raw materials, bromine chlorination reaction and filtering and drying processes into the same reactor, so the overall processing efficiency is high and the continuous production of bromine chlorine hydantoin can be carried out quickly.

[0016] 2. The present invention controls the output of the solution undergoing the bromine-chlorination reaction in the synthesis kettle, and after the liquid is filtered out by the filter tooth cover, the crude bromochlorohydantoin product is output from the material port at the top of the filter tooth cover and falls on the outer cone disk, and the outer cone disk is controlled to reciprocate and the inner cone disk is controlled to rotate continuously, so that the crude bromochlorohydantoin product can be continuously thrown away, thereby preventing the wet crude bromochlorohydantoin product from adhering to the outer cone disk and the inner cone disk during drying. Due to the continuous adjustment of the contact area, the drying is uniform, reliable and stable. In addition, the heat of the reaction chamber and the synthesis kettle is used for drying, which can reduce the cooling energy consumption, thereby optimizing the control of energy utilization.

[0017] 3. The present invention controls the reciprocating deflection of the inner cone disk, so that the dried crude bromochlorohydantoin automatically slides to the center of the inner cone disk, and the spiral conveying pipe automatically conveys the dried crude bromochlorohydantoin to the collecting chamber, and further dries and warms it by utilizing the heat in the reactor. Before the next batch of crude bromochlorohydantoin is conveyed to the collecting chamber, the suction pipe is controlled to extract the dried bromochlorohydantoin to obtain the finished product, and the drying effect is good and the collection is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of the continuous production equipment of the present invention; Figure 2 The present invention is a three-dimensional section of the reactor of the continuous production equipment Figure 1 ; Figure 3 The present invention is a three-dimensional section of the reactor of the continuous production equipment Figure 2 ; Figure 4 It is a three-dimensional cutaway view of the inner cone disk portion of the continuous production equipment of the present invention; Figure 5 It is a partial three-dimensional cutaway view of a synthesis reactor of the continuous production equipment of the present invention; Figure 6 It is a three-dimensional cutaway exploded view of the scraper tooth cover of the continuous production equipment of the present invention; Figure 7 It is a three-dimensional cutaway view of the synthesis reactor and the rotating drum of the continuous production equipment of the present invention; Figure 8 It is a three-dimensional cutaway view of the guide ring portion of the continuous production equipment of the present invention.

[0019] Figure numerals: 1, reactor; 11, jacket; 12, circulation pipe 1; 13, liquid inlet pipe; 14, temperature sensor 1; 2, synthesis reactor; 21, stirring shaft 1; 22, solenoid valve slot; 23, circulation pipe 2; 24, temperature sensor 2; 25, pH sensor; 26, chlorine pipe; 27, bromine pipe; 28, suction pipe; 3, liquid collecting cover; 31, drain pipe; 32, filter tooth cover; 33, scraper tooth cover; 34, rotary vane; 35, spray hole; 36, diffusion tank; 37, washing liquid pipe; 4, T-type liquid Tube; 41. spiral conveying tube; 42. sleeve; 43. stirring rod; 44. stirring shaft 2; 45. inverted T-slot; 46. friction cone groove; 47. liquid pump; 5. outer cone disk; 51. inner cone disk; 52. electromagnetic ring; 53. magnetic plate; 54. abutment spring; 6. rotating drum; 61. tray; 62. connecting rod; 63. inclined groove; 64. guide ring; 65. pin column; 66. tooth column; 67. winding groove; 68. movable ring; 69. pin convex; 7. rotating shaft; 71. gear 1; 72. gear 2; 8. bracket. DETAILED DESCRIPTION

[0020] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Embodiment 1

[0021] like Figure 1-Figure 8 As shown, a bromine chlorine hydantoin continuous production equipment comprises a reactor 1, wherein the upper and lower sides of the reactor 1 are respectively provided with a partitioned drying chamber and a reaction chamber, a jacket 11 is provided on the lower wall of the reaction chamber, and the left and right ends of the reactor 1 are fixedly connected with a circulation pipe 12 communicating with the inner cavity of the jacket 11, a liquid inlet pipe 13 and a temperature sensor 14 are respectively fixedly connected to the lower wall of the reaction chamber, a hollow synthesis reactor 2 is fixedly connected to the top of the drying chamber, a stirring shaft 21 is rotatably connected to the top of the inner cavity of the synthesis reactor 2, a solenoid valve groove 22 is provided on the left wall of the synthesis reactor 2, a cooling chamber is provided on the outer wall of the synthesis reactor 2, a circulation pipe 23 is fixedly plugged on both the front and rear sides of the top of the cooling chamber, a temperature sensor 24, a pH sensor 25, a chlorine pipe 26 and a bromine pipe 27 are respectively fixedly connected to the upper wall on the right side of the synthesis reactor 2, a collecting chamber is provided on the top of the inner cavity of the synthesis reactor 2, and a suction pipe 28 is fixedly plugged on the top of the collecting chamber; A liquid collecting cover 3 is fixedly connected in the drying chamber, a liquid drain pipe 31 is fixedly connected to the left wall of the liquid collecting cover 3, a filter tooth cover 32 is rotatably connected to the inner wall of the liquid collecting cover 3, a plurality of material ports are provided on the top circumference of the filter tooth cover 32, a scraper tooth cover 33 is rotatably connected between the filter tooth cover 32 and the synthesis kettle 2, a rotary vane 34 is provided on the periphery of the scraper tooth cover 33, a spray hole 35 is provided on the scraper tooth cover 33, a plurality of diffusion grooves 36 are provided on the bottom circumference of the scraper tooth cover 33, a washing liquid chamber and a convergence chamber are provided from top to bottom between the scraper tooth cover 33 and the synthesis kettle 2, and a washing liquid pipe 37 is provided on the top right side of the washing liquid chamber; A T-shaped liquid pipe 4 fixedly connected to the synthesis reactor 2 is arranged at the top of the collecting chamber, a spiral conveying pipe 41 is rotatably connected to the bottom of the T-shaped liquid pipe 4, a sleeve 42 adapted to the spiral conveying pipe 41 is fixedly connected to the top of the inner cavity of the synthesis reactor 2, a notch is provided on the top side wall of the sleeve 42, a stirring shaft 2 44 is fixedly connected to the bottom of the spiral conveying pipe 41, a motor 2 for driving the stirring shaft 2 44 is arranged at the bottom of the reactor 1, the stirring shaft 2 44 is rotatably installed in the middle of the reaction chamber, an inverted T-shaped groove 45 connected to the spiral conveying pipe 41 is provided in the middle of the stirring shaft 2 44, a liquid pump 47 sleeved on the stirring shaft 2 44 is fixedly connected to the bottom of the reaction chamber, an outer cone disk 5 is rotatably connected to the bottom of the drying chamber, an inner cone disk 51 is rotatably connected to the inner wall of the outer cone disk 5, the spiral conveying pipe 41 is rotatably inserted in the middle of the inner cone disk 51, and a bracket 8 is fixedly connected to the bottom of the reactor 1.

[0022] Furthermore, a tray 61 movably sleeved on the sleeve 42 is fixedly connected to the inner cavity of the drum 6, and the tray 61 constitutes the lower wall of the collecting chamber. The upper wall of the collecting chamber is provided with steam holes, which are used to facilitate the discharge of moisture in the collecting chamber and the drying of bromochlorohydantoin.

[0023] When producing bromochlorohydantoin, a certain amount of 5,5-dimethylhydantoin, an inorganic base and water are introduced into the reaction chamber through the liquid inlet pipe 13 for mixing, wherein the inorganic base can be sodium hydroxide or potassium hydroxide. The motor 2 is controlled to drive the stirring shaft 2 44 to stir the solution in the reaction chamber, and at the same time, the two circulation pipes 12 are controlled to input and output the cooling liquid respectively, so as to circulate and cool the cooling liquid introduced into the jacket 11. During this period, the temperature sensor 14 monitors the temperature of the solution in the reaction chamber. When the solution temperature drops to 20-25°C, the liquid pump 47 is used to pump the solution into the inverted T-slot 45 and the spiral conveying pipe 41, and the solution is transported to the synthesis reactor 2 by the T-shaped liquid pipe 4. After the solution is completely transferred into the synthesis reactor 2, the bromine is controlled to The pipe 27 and the chlorine pipe 26 are used to successively introduce bromine and chlorine gas into the synthesis reactor 2, during which the stirring shaft 21 is controlled to continuously stir the solution, the pH sensor 25 automatically monitors the pH value of the solution, and the temperature sensor 24 automatically monitors the temperature of the solution. The two circulation pipes 23 are controlled to input and output the cooling liquid respectively, so as to circulate and cool the cooling liquid introduced into the cooling chamber, thereby cooling the exothermic bromine chlorination reaction in the synthesis reactor 2. The reaction temperature is always controlled at 25-30°C to avoid side reactions, and the circulation rate is automatically adjusted according to the feedback temperature of the temperature sensor 24. After the bromine and chlorine gas are introduced, the electromagnetic valve slot 22 is controlled to open, and the bromine chlorinated solution automatically flows out under the action of gravity. , the solution automatically enters the convergence chamber and flows between the filter tooth cover 32 and the scraper tooth cover 33 through each diffusion groove 36, and at the same time controls the filter tooth cover 32 and the scraper tooth cover 33 to rotate in the same direction. Based on the centrifugal force, the liquid is thrown out into the liquid collecting cover 3 through the filter tooth cover 32 and discharged through the drain pipe 31, while the bromine chlorine hydantoin crude product is filtered and retained on the inner side of the filter tooth cover 32 and pushed upward by the rotary blade 34. The washing liquid pipe 37 is synchronously controlled to input deionized water into the washing liquid chamber and sprayed out through each spray hole 35 to wash the bromine chlorine hydantoin crude product, which can remove impurities such as unreacted raw materials. When the bromine chlorine hydantoin crude product is pushed to the material port at the top of the filter tooth cover 32 by the rotary blade 34, the bromine chlorine hydantoin crude product is automatically discharged based on the centrifugal force. The crude bromochlorohydantoin is thrown out and falls onto the outer conical disk 5, the outer conical disk 5 is controlled to reciprocate and deflect, and the inner conical disk 51 is controlled to rotate continuously. The crude bromochlorohydantoin is continuously thrown out and dried by the heat of the reaction chamber. Before the solution in the next batch of the synthesis reactor 2 is output, the inner conical disk 51 is controlled to reciprocate and deflect, so that the dried crude bromochlorohydantoin slides to the center of the inner conical disk 51, and the stirring shaft 44 drives the spiral conveying pipe 41 to automatically convey the dried crude bromochlorohydantoin upward, and outputs it to the collecting chamber through the notch at the top of the sleeve 42 for further drying and warming. Later, before the next batch of crude bromochlorohydantoin is transported to the collecting chamber, the suction pipe 28 is controlled to extract the dried bromochlorohydantoin to obtain the finished product, and the drying effect is good and the collection is convenient. Embodiment 2

[0024] like Figure 2-Figure 3 As shown, the heights of the liquid collecting cover 3 and the rotary blades 34 are both lower than the height of the top material opening of the filter tooth cover 32 .

[0025] When the liquid collected by the liquid collecting cover 3 is collected by centrifugal filtering, the crude bromochlorohydantoin product pushed to the top material port of the filter tooth cover 32 by the rotary blade 34 can also be automatically thrown out over the top of the liquid collecting cover 3 and fall onto the outer cone 5 based on the centrifugal force. The output of the crude bromochlorohydantoin product and the waste liquid does not interfere with each other, and the output is safe and reliable. Embodiment 3

[0026] like Figure 2-Figure 3 and Figure 6 As shown, the upper wall of the synthesis reactor 2 is rotatably connected to a rotating shaft 7, and a gear 1 71 and a gear 2 72 are fixedly sleeved on the rotating shaft 7, respectively. The gear 1 71 is meshedly connected to the filter tooth cover 32, and the gear 2 72 is meshedly connected to the scraper tooth cover 33; A motor 1 is installed on the upper wall of the reaction kettle 1, a transmission belt 1 is movably sleeved between the output end of the motor 1 and the rotating shaft 7, and a transmission belt 2 is movably sleeved between the rotating shaft 7 and the stirring shaft 1 21.

[0027] The motor 1 drives the rotating shaft 7 to rotate by using the transmission belt 1, and the rotating shaft 7 drives the stirring shaft 1 21 to rotate by using the transmission belt 2. When the solution undergoes the bromine-chlorination reaction, it can be continuously stirred to circulate the flow, thereby avoiding the occurrence of side reactions. At the same time, the rotating shaft 7 drives the gear 1 71 and the gear 2 72 to rotate in the same direction as the filter tooth cover 32 and the scraper tooth cover 33. However, there is a small speed difference between the filter tooth cover 32 and the scraper tooth cover 33. The speed difference can be used to control the rotary vane 34 to rotate at a low speed relative to the filter tooth cover 32, so as to gradually push the bromine-chlorinated hydantoin crude product filtered and retained on the inner side of the filter tooth cover 32 upward at a low speed, thereby ensuring that the wet bromine-chlorinated hydantoin crude product is fully thrown out of the liquid based on centrifugal force, reducing the subsequent drying pressure, and at the same time facilitating the full flushing of the deionized water output by the spray hole 35, thereby reducing impurities in the subsequent bromine-chlorinated hydantoin crude product. Embodiment 4

[0028] like Figure 2 As shown, a baffle corresponding to the top material opening of the filter tooth cover 32 is arranged on the upper wall of the drying chamber in the reactor 1 .

[0029] When the crude bromochlorohydrin is pushed to the material port at the top of the filter tooth cover 32 by the rotary blade 34 and is automatically thrown out due to the centrifugal force, the baffle can prevent a large amount of wet crude bromochlorohydrin from being thrown out and adhering to the side wall of the drying chamber, causing difficulty in subsequent drying and collection, and can guide the wet crude bromochlorohydrin with a smaller amount of adhesion, and a small amount of adhered wet crude bromochlorohydrin can be impacted and dropped when the subsequent crude bromochlorohydrin is output. Embodiment 5

[0030] like Figure 5 and Figure 8 As shown, a rotating drum 6 is rotatably connected to the middle of the synthesis kettle 2, a connecting rod 62 is fixedly connected between the bottom of the rotating drum 6 and the outer cone 5, a plurality of inclined grooves 63 in a circumferential array are provided on the periphery of the bottom of the rotating drum 6, a guide ring 64 is slidably engaged with the bottom of the synthesis kettle 2, and a pin 65 movably engaged with the inclined groove 63 is fixedly connected to the inner wall of the guide ring 64; A plurality of tooth posts 66 in a circular array are rotatably connected to the bottom of the scraper tooth cover 33. The tooth posts 66 are meshedly connected to the filter tooth cover 32. The tooth posts 66 are provided with winding grooves 67 connected end to end. A movable ring 68 is movably sleeved between the tooth posts 66. The movable ring 68 is provided with a pin protrusion 69 movably engaged with the winding groove 67. The movable ring 68 is rotatably connected to the guide ring 64.

[0031] When the filter tooth cover 32 and the scraper tooth cover 33 rotate in the same direction and there is a speed difference, the tooth column 66 automatically rotates relative to the meshing filter tooth cover 32, and the movable ring 68 is driven to move reciprocatingly up and down based on the movable clamping property of the pin protrusion 69 and the groove 67. The corresponding rotating movable ring 68 drives the guide ring 64 to move reciprocatingly up and down, and the guide ring 64 uses the pin column 65 to drive the inclined groove 63 to make the rotating drum 6 reciprocate, and the rotating drum 6 drives the connecting rod 62 to make the outer cone disk 5 reciprocate, thereby realizing dynamic drying of the crude bromochlorohydantoin with good drying effect. Embodiment 6

[0032] like Figure 4 and Figure 7 As shown, an electromagnetic ring 52 is fixedly connected to the bottom of the inner cone disk 51, a magnetic plate 53 is slidably engaged with the bottom of the inner cone disk 51, an abutment spring 54 is fixedly connected between the magnetic plate 53 and the electromagnetic ring 52, a friction cone groove 46 is provided on the top of the stirring shaft 44, and a friction cone convex movably abutted with the friction cone groove 46 is provided at the bottom of the magnetic plate 53; The inner wall of the outer conical disk 5 is provided with a friction ring groove movably connected to the magnetic plate 53 .

[0033] Initially, the magnetic plate 53 drives the friction cone convex to fully abut against the friction cone groove 46 under the pressure of the abutment spring 54, and the magnetic plate 53 is movably connected to the friction ring groove on the inner wall of the outer cone disk 5, and the magnetic plate 53 is relatively fixedly connected to the stirring shaft 2 44. When the stirring shaft 2 44 is running, the magnetic plate 53 immediately drives the inner cone disk 51 to rotate continuously, thereby providing sufficient centrifugal force for the wet bromochlorohydantoin crude product to be dried so that it can be continuously thrown and dried. When it is necessary to control the reciprocating deflection of the inner cone disk 51 later, the electromagnetic ring 52 is energized to attract the magnetic plate 53 to compress the abutment spring 54 and move upward, and the magnetic plate 53 is separated from the stirring shaft 2 44 and abuts against the friction ring groove on the inner wall of the outer cone disk 5. The reciprocating outer cone disk 5 drives the inner cone disk 51 to reciprocate synchronously to vibrate the dry bromochlorohydantoin crude product, so that it can quickly slide to the center of the inner cone disk 51 and be output by the spiral conveying pipe 41. Embodiment 7

[0034] like Figure 3-Figure 4 As shown, a groove is provided in the middle of the inner cone 51, the bottom of the sleeve 42 is in the groove, and a gap is provided between the bottom of the sleeve 42 and the lower wall of the groove; A plurality of stirring rods 43 in a circumferential array are fixedly connected to the periphery of the sleeve 42 , and the stirring rods 43 are located inside the collecting chamber.

[0035] When the inner cone 51 reciprocates to collect the dried crude bromochlorohydantoin in the form of relative vibration, the crude bromochlorohydantoin automatically slides to the center of the inner cone 51 and fills the groove, and the corresponding sleeve 42 can cooperate with the spiral conveying tube 41 to automatically and stably convey the crude bromochlorohydantoin upward to the collecting chamber, and the crude bromochlorohydantoin in the collecting chamber is stored on the tray 61. Later, when the rotating drum 6 reciprocates, it can drive the collected crude bromochlorohydantoin to rotate relative to the stirring rod 43, so that the crude bromochlorohydantoin is stirred to further improve the drying and warming effect. Embodiment 8

[0036] Provided is a method for continuous production of bromochlorohydantoin, comprising the following steps: S1, a quantitative amount of 5,5-dimethylhydantoin, an inorganic base and water are introduced into the reaction chamber through the liquid inlet pipe 13, and the stirring shaft 44 is controlled to stir the solution in the reaction chamber, and the cooling liquid is passed into the jacket 11 through two circulation pipes 12 for circulation cooling, during which the temperature sensor 14 monitors the solution temperature; S2, when it is monitored that the temperature of the solution in the reaction chamber drops to 20-25°C, the solution is transferred to the synthesis reactor 2 by the liquid pump 47. After the solution is completely transferred, the bromine pipe 27 and the chlorine pipe 26 are controlled to respectively introduce bromine and chlorine gas into the synthesis reactor 2 in sequence. During this period, the stirring shaft 1 21 is controlled to continuously stir the solution, the pH sensor 25 automatically monitors the pH value of the solution, the temperature sensor 2 24 automatically monitors the temperature of the solution, and the two circulation pipes 23 are controlled to circulate and cool the coolant introduced into the cooling chamber. The circulation rate is automatically adjusted according to the feedback temperature of the temperature sensor 24, and the reaction temperature of the synthesis reactor 2 is controlled at 25-30°C; S3, after the bromine and chlorine are introduced, the electromagnetic valve slot 22 is controlled to open, and the filter tooth cover 32 and the scraper tooth cover 33 are controlled to rotate in the same direction. Based on the centrifugal force, the liquid is thrown out into the liquid collecting cover 3 through the filter tooth cover 32 and discharged through the drain pipe 31. The crude bromochlorohydantoin is filtered inside the filter tooth cover 32 and pushed upward by the rotary vane 34. During this period, the washing liquid pipe 37 is controlled to input deionized water through each spray hole 35 to wash the crude bromochlorohydantoin; S4, when the crude bromochlorohydantoin is pushed to the material port at the top of the filter tooth cover 32, it is automatically thrown out and falls onto the outer conical disk 5 based on the centrifugal force, and the outer conical disk 5 is controlled to deflect back and forth, and the inner conical disk 51 is controlled to rotate continuously, and the crude bromochlorohydantoin is continuously thrown and dried by the heat of the reaction chamber; S5. Before the next batch of solution in the synthesis reactor 2 is output, the inner cone 51 is controlled to reciprocate, and the spiral conveying pipe 41 automatically conveys the dried bromochlorohydantoin to the collecting chamber for further drying. Subsequently, the suction pipe 28 is controlled to extract the dried bromochlorohydantoin to obtain the finished product.

[0037] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A continuous production device for bromochlorohydantoin, comprising a reaction kettle (1), characterized in that: The reactor (1) has a drying chamber and a reaction chamber separated by a partition, the lower wall of the reaction chamber being provided with a jacket (11), the left and right ends of the reactor (1) being fixedly connected with a circulation pipe (12) communicating with the inner cavity of the jacket (11), the lower wall of the reaction chamber being fixedly connected with a liquid inlet pipe (13) and a temperature sensor (14), the top of the drying chamber being fixedly connected with a hollow synthesis reactor (2), the top of the inner cavity of the synthesis reactor (2) being rotatably connected with a stirring shaft (21), the left wall of the synthesis reactor (2) being provided with a solenoid valve groove (22), the outer wall of the synthesis reactor (2) being provided with a cooling chamber, the front and rear sides of the top of the cooling chamber being fixedly connected with a circulation pipe (23), the right upper wall of the synthesis reactor (2) being fixedly connected with a temperature sensor (24), a pH sensor (25), a chlorine pipe (26) and a bromine pipe (27), the top of the inner cavity of the synthesis reactor (2) being provided with a collecting chamber, the top of the collecting chamber being fixedly connected with a suction pipe (28); A liquid collecting cover (3) is fixedly connected in the drying chamber, a liquid drain pipe (31) is fixedly connected to the left wall of the liquid collecting cover (3), a filter tooth cover (32) is rotatably connected to the inner wall of the liquid collecting cover (3), a plurality of material openings are provided on the top circumference of the filter tooth cover (32), a scraper tooth cover (33) is rotatably connected between the filter tooth cover (32) and the synthesis kettle (2), a rotary vane (34) is provided on the periphery of the scraper tooth cover (33), a spray hole (35) is provided on the scraper tooth cover (33), a plurality of diffusion grooves (36) are provided on the bottom circumference of the scraper tooth cover (33), a washing liquid chamber and a convergence chamber are provided respectively between the scraper tooth cover (33) and the synthesis kettle (2) from top to bottom, and a washing liquid pipe (37) is provided on the top right side of the washing liquid chamber; The top of the collecting chamber is provided with a T-shaped liquid pipe (4) fixedly connected to the synthesis reactor (2); the bottom of the T-shaped liquid pipe (4) is rotatably connected to a spiral conveying pipe (41); the top of the inner chamber of the synthesis reactor (2) is fixedly connected to a sleeve (42) adapted to the spiral conveying pipe (41); a notch is provided on the top side wall of the sleeve (42); the bottom of the spiral conveying pipe (41) is fixedly connected to a second stirring shaft (44); the second stirring shaft (44) is rotatably mounted in the middle of the reaction chamber; an inverted T-shaped groove (45) communicating with the spiral conveying pipe (41) is provided in the middle of the second stirring shaft (44); the bottom of the reaction chamber is fixedly connected to a liquid pump (47) sleeved on the second stirring shaft (44); the bottom of the drying chamber is rotatably connected to an outer cone disk (5); the inner wall of the outer cone disk (5) is rotatably connected to an inner cone disk (51); and the spiral conveying pipe (41) is rotatably plugged into the middle of the inner cone disk (51).

2. A continuous production equipment for bromochlorohydantoin according to claim 1, characterized in that: The heights of the liquid collecting cover (3) and the rotary blades (34) are both lower than the height of the top material opening of the filter tooth cover (32).

3. A kind of bromochlorohydantoin continuous production equipment according to claim 2, characterized in that, The upper wall of the synthesis reactor (2) is rotatably connected to a rotating shaft (7), and a gear 1 (71) and a gear 2 (72) are respectively fixedly sleeved on the rotating shaft (7), the gear 1 (71) is meshingly connected to the filtering tooth cover (32), and the gear 2 (72) is meshingly connected to the scraping tooth cover (33); A motor 1 is mounted on the upper wall of the reaction kettle (1); a transmission belt 1 is movably sleeved between the output end of the motor 1 and the rotating shaft (7); and a transmission belt 2 is movably sleeved between the rotating shaft (7) and the stirring shaft 1 (21).

4. A continuous production equipment for bromochlorohydantoin according to claim 3, characterized in that: A bracket (8) is fixedly connected to the bottom of the reaction kettle (1), a baffle corresponding to the top material opening of the filter tooth cover (32) is arranged on the upper wall of the drying chamber in the reaction kettle (1), and a second motor for driving the second stirring shaft (44) is arranged at the bottom of the reaction kettle (1).

5. A continuous production equipment for bromochlorohydantoin according to claim 4, characterized in that: An electromagnetic ring (52) is fixedly connected to the bottom of the inner conical disk (51), a magnetic plate (53) is slidably engaged with the bottom of the inner conical disk (51), an abutment spring (54) is fixedly connected between the magnetic plate (53) and the electromagnetic ring (52), a friction cone groove (46) is provided at the top of the second stirring shaft (44), and a friction cone convex movably abutted against the friction cone groove (46) is provided at the bottom of the magnetic plate (53); The inner wall of the outer cone disk (5) is provided with a friction ring groove movably connected to the magnetic plate (53).

6. A bromochlorohydantoin continuous production equipment according to claim 5, characterized in that: A groove is provided in the middle of the inner cone (51), the bottom of the sleeve (42) is located in the groove, and a gap is provided between the bottom of the sleeve (42) and the lower wall of the groove; A plurality of groups of stirring rods (43) in a circumferential array are fixedly connected to the periphery of the sleeve (42), and the stirring rods (43) are located inside the collection chamber.

7. A bromochlorohydantoin continuous production equipment according to claim 6, characterized in that: A rotating drum (6) is rotatably connected to the middle of the synthesis reactor (2); a tray (61) movably sleeved on the sleeve (42) is fixedly connected to the inner cavity of the rotating drum (6); the tray (61) constitutes the lower wall of the collection chamber; and a steam hole is provided on the upper wall of the collection chamber.

8. A bromochlorohydantoin continuous production equipment according to claim 7, characterized in that: A connecting rod (62) is fixedly connected between the bottom of the rotating drum (6) and the outer cone (5); a plurality of inclined grooves (63) in a circumferential array are provided on the periphery of the bottom of the rotating drum (6); a guide ring (64) is slidably engaged with the bottom of the synthesis reactor (2); a pin (65) movably engaged with the inclined groove (63) is fixedly connected to the inner wall of the guide ring (64); The bottom of the scraper tooth cover (33) is rotatably connected to a plurality of tooth columns (66) in a circumferential array. The tooth columns (66) are meshingly connected to the filter tooth cover (32). The tooth columns (66) are provided with winding grooves (67) connected end to end. A movable ring (68) is movably sleeved between the tooth columns (66). The movable ring (68) is provided with a pin protrusion (69) movably engaged with the winding groove (67). The movable ring (68) is rotatably connected to the guide ring (64).

9. A continuous production method of bromochlorohydantoin, characterized in that: A continuous production device for bromochlorohydantoin as claimed in any one of claims 1 to 8, comprising the following steps: S1, inputting a certain amount of 5,5-dimethylhydantoin, an inorganic base and water into the reaction chamber through the liquid inlet pipe (13), and controlling the stirring shaft 2 (44) to stir the solution in the reaction chamber, and controlling the two circulation pipes 1 (12) to pass a cooling liquid into the jacket (11) for circulation cooling, during which the temperature sensor 1 (14) monitors the solution temperature; S2. When it is detected that the temperature of the solution in the reaction chamber drops to 20-25° C., the solution is transferred to the synthesis reactor (2) by using the liquid pump (47). After the solution is completely transferred, the bromine tube (27) and the chlorine tube (26) are controlled to respectively and successively introduce bromine and chlorine gas into the synthesis reactor (2). During this period, the stirring shaft 1 (21) is controlled to continuously stir the solution. The pH sensor (25) automatically monitors the pH value of the solution. The temperature sensor 2 (24) automatically monitors the temperature of the solution. The two circulation tubes 2 (23) are controlled to circulate the coolant introduced into the cooling chamber for cooling. The circulation rate is automatically adjusted according to the feedback temperature of the temperature sensor 2 (24). The reaction temperature of the synthesis reactor (2) is controlled to be 25-30° C.; S3, after the bromine and chlorine are introduced, the electromagnetic valve slot (22) is controlled to open, and the filter tooth cover (32) and the scraper tooth cover (33) are controlled to rotate in the same direction, so that the liquid is thrown out into the liquid collecting cover (3) through the filter tooth cover (32) based on the centrifugal force, and is discharged through the liquid discharge pipe (31), and the bromine chlorine hydrazine crude product is filtered inside the filter tooth cover (32) and pushed upward by the rotary blade (34), and during this period, the washing liquid pipe (37) is controlled to input deionized water through each of the spray holes (35) to wash the bromine chlorine hydrazine crude product; S4, when the crude bromochlorohydantoin product is pushed to the material port at the top of the filter tooth cover (32), it is automatically thrown out and falls onto the outer conical disk (5) due to the centrifugal force, and the outer conical disk (5) is controlled to reciprocate and deflect, and the inner conical disk (51) is controlled to rotate continuously, so that the crude bromochlorohydantoin product is continuously thrown out and dried by using the heat of the reaction chamber; S5. Before the next batch of solution in the synthesis reactor (2) is output, the inner cone (51) is controlled to reciprocate, and the spiral conveying pipe (41) automatically conveys the dried bromochlorohydantoin to the collection chamber for further drying. Subsequently, the suction pipe (28) is controlled to extract the dried bromochlorohydantoin to obtain a finished product.

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