CN114130304A - Cyanuric acid refining and pressurizing reaction device and method - Google Patents
Cyanuric acid refining and pressurizing reaction device and method Download PDFInfo
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- CN114130304A CN114130304A CN202111333583.6A CN202111333583A CN114130304A CN 114130304 A CN114130304 A CN 114130304A CN 202111333583 A CN202111333583 A CN 202111333583A CN 114130304 A CN114130304 A CN 114130304A
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- cyanuric acid
- feeding
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 90
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 238000007670 refining Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 title abstract description 8
- 239000007787 solid Substances 0.000 claims abstract description 55
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 230000007306 turnover Effects 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 17
- 238000011084 recovery Methods 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 238000004064 recycling Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims 2
- 238000007599 discharging Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- -1 two reation kettle Chemical compound 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/002—Component parts of these vessels not mentioned in B01J3/004, B01J3/006, B01J3/02 - B01J3/08; Measures taken in conjunction with the process to be carried out, e.g. safety measures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/02—Feed or outlet devices therefor
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/30—Only oxygen atoms
- C07D251/32—Cyanuric acid; Isocyanuric acid
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a cyanuric acid refining and pressurizing reaction device and a cyanuric acid refining and pressurizing reaction method, which comprise two reaction kettles, wherein the top of each reaction kettle is respectively provided with an air inlet, a liquid feeding box and a feeding hole, the bottom of each reaction kettle is provided with a discharging hole, a discharging valve is arranged at the discharging hole, a feeding turnover mechanism is arranged between the tops of the two reaction kettles, a solid feeding box is arranged above the feeding turnover mechanism, and crude cyanuric acid in the solid feeding box is guided into any one feeding hole or two feeding holes simultaneously through the feeding turnover mechanism. According to the invention, the feeding turnover mechanism is arranged between the tops of the two reaction kettles, crude cyanuric acid in the solid feeding box is guided into any one of the feeding holes or simultaneously guided into the two feeding holes through the feeding turnover mechanism, feeding to the two reaction kettles can be realized through one feeding turnover mechanism, and the feeding mode is flexible and changeable, so that feeding can be simultaneously carried out, and feeding can be independently carried out to the reaction kettles.
Description
Technical Field
The invention belongs to the field of cyanuric acid production equipment, and particularly relates to a cyanuric acid refining and pressurizing reaction device and method.
Background
The existing cyanuric acid refining equipment adopts a split type refining reaction tank, crude cyanuric acid is added into the reaction tank, and after the reaction of the reaction tank with steam and pressure is finished, the crude cyanuric acid is cooled and washed with water. However, when crude cyanuric acid is added into the reaction kettle, the reaction kettle basically adopts an independent feeding mode, namely, a feeding port of each reaction kettle is provided with a solid feeding box, and a discharging end of each solid feeding box realizes accurate feeding through a material guide mechanism.
Disclosure of Invention
The present invention is directed to a pressurized reaction apparatus and method for cyanuric acid purification, which solves the problems of the background art mentioned above.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a pressure reaction unit is refine to cyanuric acid, including two reation kettle, every reation kettle's top is provided with the air inlet respectively, liquid feeding case and feed inlet, reation kettle's bottom is equipped with the discharge gate, discharge gate department sets up the bleeder valve, install feeding tilting mechanism between two reation kettle's the top, feeding tilting mechanism's top is equipped with the solid feeding case, the inside crude cyanuric acid of solid feeding incasement is leading-in to any feed inlet or is leading-in to two feed inlets simultaneously through feeding tilting mechanism.
Preferably, the feeding turnover mechanism comprises a second guide plate, the front and back surfaces of the second guide plate are in an inclined structure from a middle position to a bottom end, a first fixing plate and a second fixing plate are respectively arranged on two sides of the second guide plate, first sliding grooves are respectively formed in the inner sides of the first fixing plate and the second fixing plate along the vertical direction, bearings are respectively connected in the two first sliding grooves in a sliding manner, second fixing shafts are respectively sleeved on the inner rings of the bearings in a rotating manner, the two second fixing shafts are respectively fixed on two sides of the second guide plate, a fourth limit switch is welded at a position, close to the bottom, on the right side of the first fixing plate, a third limit switch is welded at a position, close to the bottom, on the left side of the second fixing plate, a second motor is fixedly installed at the bottom end of the front end face of the second fixing plate, an output end of the second motor is in driving connection with a second rotating shaft, and the second rotating shaft is rotatably installed between the first fixing plate and the second fixing plate, a notch is formed at the bottom end of the second guide plate, a third fixing shaft is fixed in the notch, a rotating rod is connected between the third fixing shaft and the second rotating shaft, one end of the rotating rod is rotatably connected with the third fixing shaft, and the other end of the rotating rod is welded with the second rotating shaft.
Preferably, a supporting plate is fixedly connected between the two reaction kettles, a solid feeding box is fixedly installed at the top of the supporting plate, a first motor is fixedly installed on the outer wall of one side of the solid feeding box, a first rotating shaft is arranged in the solid feeding box and penetrates through the inner wall of the solid feeding box to be fixedly connected with a motor shaft of the first motor, a spring telescopic rod is fixedly sleeved on the first rotating shaft, a recovery port is formed in the rear wall of the solid feeding box in the inclined direction, a first guide plate is arranged in the position, corresponding to the recovery port, in the solid feeding box, sliding grooves are formed in the two sides of the first guide plate, first fixing shafts are arranged in the middle of the two sliding grooves, the two first fixing shafts are respectively fixed on the inner wall of the solid feeding box and are positioned on the same vertical line with the first rotating shaft, the first guide plate is connected with the first fixing shafts in a sliding mode through the sliding grooves, and the top end of the spring telescopic rod is hinged to the bottom end, close to the recovery port, of the first guide plate, the first guide plate is driven by the spring telescopic rod to slide relative to the first fixed shaft, the first guide plate swings by taking the first fixed shaft as a center, a first limit switch and a second limit switch are respectively installed on the side wall inside the solid feeding box, the first limit switch is positioned above the first fixed shaft and on the same vertical line with the first limit switch, and when one end of the first guide plate rotates to be in contact with the second limit switch, the other end of the first guide plate faces the recovery port; the bottom of the cavity of the solid feeding box is fixedly provided with a weight sensor, the upper end of the weight sensor is fixedly connected with a base plate, a bottomless basket is placed on the base plate, the front end of the solid feeding box is connected with a cylinder support, a first cylinder is fixedly arranged on the cylinder support, a piston rod of the first cylinder is fixedly connected with the bottomless basket, and the bottomless basket can slide to the outside of the solid feeding box along the horizontal direction through the first cylinder.
Preferably, each feed inlet is provided with a sealing cover matched with the feed inlet in a sliding manner along the horizontal direction, the sealing cover is in driving connection with a second cylinder fixed at the top of the reaction kettle, and locking mechanisms are further arranged on two sides of each feed inlet.
Preferably, locking mechanism is including fixing the L shaped plate in feed inlet both sides and fixing the L shape plug in sealed lid both sides, and the top of L shaped plate is connected with the torque arm with L shape plug matched with through the rotation of third rotation axis, is connected with the second spring between the terminal of torque arm and the minor face of L shaped plate.
The invention also provides a preparation method of cyanuric acid, which adopts the cyanuric acid refining pressurized reaction device and comprises the following steps:
step one, crude cyanuric acid in a solid feeding box is guided into one of the reaction kettles or both the reaction kettles through a feeding turnover mechanism;
step two, enabling the sulfuric acid solution in the liquid feeding box to flow into a reaction kettle, enabling steam to enter the reaction kettle through an air inlet, and enabling the temperature and the pressure in the reaction kettle to increase to reach reaction conditions to perform reaction along with the steam entering the reaction kettle;
and step three, cooling the cyanuric acid obtained after the reaction, washing with water and separating to obtain fine cyanuric acid.
Compared with the prior art, the invention provides a cyanuric acid refining pressure reaction device and a method, which have the following beneficial effects:
according to the invention, the feeding turnover mechanism is arranged between the tops of the two reaction kettles, crude cyanuric acid in the solid feeding box is guided into any one of the feeding holes or simultaneously guided into the two feeding holes through the feeding turnover mechanism, feeding to the two reaction kettles can be realized through one feeding turnover mechanism, and the feeding mode is flexible and changeable, so that feeding can be simultaneously carried out, and feeding can be independently carried out to the reaction kettles.
The two sides of the feed inlet are also provided with locking mechanisms, when crude cyanuric acid is added into the reaction kettle, the second cylinder pushes the sealing cover to move, the L-shaped plug pushes the torsion arm when the feed inlet is closed, and the torsion arm rotates downwards and presses the sealing cover to achieve the sealing effect.
Install first limit switch and second limit switch on the inside lateral wall of solid feeding incasement portion respectively, when first baffle anticlockwise rotation reached vertical state, crude cyanuric acid through the both sides blanking of first baffle to no end basket in, when weight sensor survey crude cyanuric acid has flowed into no end basket weight and is close when setting for weight, first motor drive first baffle clockwise turning, the one end of first baffle is rotatory to and second limit switch, make its other end just in time towards retrieving the mouth, crude cyanuric acid returns to loading attachment through retrieving the mouth in, thereby realized loading attachment's non-stop quantitative material loading.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:
FIG. 1 is a schematic view of the overall apparatus of the present invention;
FIG. 2 is a schematic view of the internal structure of the solid feed box;
FIG. 3 is a schematic view of the internal structure of the telescopic rod of the spring;
FIG. 4 is a schematic view of the overall structure of the feeding turnover mechanism of the present invention;
FIG. 5 is a schematic view of the locking mechanism of the present invention;
FIG. 6 is a schematic front view of the entire apparatus of the present invention;
FIG. 7 is an enlarged view of part A of FIG. 6;
FIG. 8 is an electrical schematic control diagram of four limit switches controlling two motors according to the present invention;
FIG. 9 is a schematic view of a process for preparing cyanuric acid.
In the figure: 1. a reaction kettle; 2. an air inlet; 3. a liquid feed tank; 4. a cylinder support; 5. a solid feed box; 6. a first motor; 7. a feeding turnover mechanism; 8. a locking mechanism; 9. a discharge port; 10. a first limit switch; 11. a second limit switch; 12. a third limit switch; 13. a fourth limit switch; 14. a first rotating shaft; 15. a spring telescopic rod; 16. a first guide plate; 17. a first fixed shaft; 18. a first spring; 19. a first cylinder; 20. a first fixing plate; 21. a support plate; 22. a weight sensor; 23. a base plate; 24. a bottom basket is not provided; 25. a recovery port; 26. a first chute; 27. a second fixing plate; 28. a second guide plate; 29. a second fixed shaft; 30. a bearing; 31. a second motor; 32. a second rotation shaft; 33. rotating the rod; 34. a third fixed shaft; 35. an L-shaped plate; 36. an L-shaped plug; 37. a torque arm; 38. a second spring; 39. a third rotation axis; 40. a second cylinder; 41. a sealing cover; 42. a discharge valve; 43. and (4) feeding a material inlet.
SQ1, SQ2, SQ3 and SQ4 in fig. 8 represent the first limit switch 10, the second limit switch 11, the third limit switch 12 and the fourth limit switch 13, respectively.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the embodiments of the present invention.
Referring to fig. 1-8, the present embodiment provides a pressurized reaction apparatus for refining cyanuric acid, which includes two reaction kettles 1 arranged side by side, the top of each reaction kettle 1 is respectively provided with an air inlet 2, a liquid feed box 3 and a feed inlet 43, the air inlet 2 is used for introducing steam into the reaction kettle 1, the liquid feed box 3 is used for adding sulfuric acid solution into the reaction kettle 1, crude cyanuric acid to be reacted enters the reaction kettle 1 through the feed inlet 43, the bottom of the reaction kettle 1 is provided with a discharge port 9, the discharge port 9 is provided with a discharge valve 42, after the reaction is completed, the discharge port 9 is opened through the discharge valve 42, and cyanuric acid completing the reaction enters the next production process. As a core technical scheme of the invention, a feeding turnover mechanism 7 is arranged between the tops of two reaction kettles 1, a solid feeding box 5 is arranged above the feeding turnover mechanism 7, reacted crude cyanuric acid is added into the solid feeding box 5, the crude cyanuric acid in the solid feeding box 5 is guided into any one feeding port 43 or two feeding ports 43 through the feeding turnover mechanism 7, feeding to the two reaction kettles 1 can be realized through one feeding turnover mechanism 7, and the feeding mode is flexible and changeable, so that feeding can be simultaneously carried out, and feeding can be independently carried out to the reaction kettles 1.
Specifically, the feeding turnover mechanism 7 includes a second guide plate 28, the front and back surfaces of the second guide plate 28 are inclined from the middle position to the bottom, the inclined structure can facilitate the second guide plate 28 to simultaneously feed into two reaction kettles 1, two sides of the second guide plate 28 are respectively provided with a first fixing plate 20 and a second fixing plate 27, the inner sides of the first fixing plate 20 and the second fixing plate 27 are respectively provided with a first chute 26 along the vertical direction, bearings 30 are respectively connected in the two first chutes 26 in a sliding manner, the inner rings of the two bearings 30 are respectively rotatably sleeved with a second fixing shaft 29, the two second fixing shafts 29 are respectively fixed on two sides of the second guide plate 28, the bottom end of the front end surface of the second fixing plate 27 is fixedly provided with a second motor 31, the output end of the second motor 31 is drivingly connected with a second rotating shaft 32, the second rotating shaft 32 is rotatably installed between the first fixing plate 20 and the second fixing plate 27, a notch is formed at the bottom end of the second guide plate 28, a third fixed shaft 34 is fixed in the notch, a rotating rod 33 is connected between the third fixed shaft 34 and the second rotating shaft 32, one end of the rotating rod 33 is rotatably connected with the third fixed shaft 34, the other end of the rotating rod 33 is connected with the second rotating shaft 32 in a welding manner, and the material enters the corresponding feed port 43 through the inclined surface of the second guide plate 28. Fig. 4 shows a state where the material is introduced into the left reaction vessel 1, when two reaction vessels 1 need to be fed simultaneously, the second motor 31 is rotated clockwise, the second motor 31 drives the second rotating shaft 32 to rotate, the rotating shaft 33 rotates clockwise around the second rotating shaft 32, and further drives the second guide plate 28 to slide upwards along the first fixing plate 20 and the second fixing plate 27, in the sliding process, because the rotating shaft 33 performs a circular motion, the second guide plate 28 rotates counterclockwise around the bearing 30, when the rotating shaft 33 rotates to a vertical state, the second guide plate 28 and the crude cyanuric acid are in a vertical state, and the crude cyanuric acid is divided into two parts and flows into the left and right reaction vessels 1 through the second guide plate 28. The position of the right side of the first fixing plate 20 close to the bottom of the first fixing plate is welded with a fourth limit switch 13, the position of the left side of the second fixing plate 27 close to the bottom of the second fixing plate is welded with a third limit switch 12, the fourth limit switch 13 and the third limit switch 12 are swing limit positions of the second guide plate 28, and when the second guide plate 28 swings and touches the fourth limit switch 13 and the third limit switch 12, the second motor 31 stops moving.
A supporting plate 21 is fixedly connected between the two reaction kettles 1, and the solid feeding box 5 is fixedly installed at the top of the supporting plate 21.
A first motor 6 is fixedly installed on the outer wall of one side of the solid feeding box 5, a first rotating shaft 14 is arranged inside the solid feeding box 5, the first rotating shaft 14 penetrates through the inner wall of the solid feeding box 5 and is fixedly connected with a motor shaft of the first motor 6, a spring telescopic rod 15 is fixedly sleeved on the first rotating shaft 14, a first spring 18 is arranged inside the spring telescopic rod 15, a recovery opening 25 is formed in the rear wall of the solid feeding box 5 along the inclined direction, a first guide plate 16 is arranged in the position, corresponding to the recovery opening 25, inside the solid feeding box 5, sliding grooves are formed in two sides of the first guide plate 16, first fixing shafts 17 are arranged in the middle of the two sliding grooves, the two first fixing shafts 17 are respectively fixed on the inner wall of the solid feeding box 5 and are positioned on the same vertical line with the first rotating shaft 14, the first guide plate 16 is slidably connected with the first fixing shafts 17 through the sliding grooves, the top end of the spring telescopic rod 15 is hinged to the bottom end, close to the recovery opening 25, of the first guide plate 16, the first guide plate 16 is driven by the telescopic spring rod 15 to slide on the first fixed shaft 17, and the first guide plate 16 swings around the first fixed shaft 17. Referring to fig. 2 for explanation, the first motor 6 rotates the first rotating shaft 14 in a reverse direction (counterclockwise), the telescopic spring rod 15 rotates clockwise around the first rotating shaft 14 in the direction shown in fig. 2, the telescopic spring rod 15 acts on the first guide plate 16 to slide upward relative to the first fixed shaft 17, and the telescopic spring rod 15 performs a circular motion, so that the first guide plate 16 also rotates counterclockwise relative to the first fixed shaft 17, and the first spring 18 inside the telescopic spring rod 15 is compressed during the clockwise rotation, and the first guide plate 16 rotates counterclockwise to a vertical state.
A weight sensor 22 is fixedly installed at the bottom of the cavity of the solid feeding box 5, a backing plate 23 is fixedly connected to the upper end of the weight sensor 22, and a bottomless basket 24 is placed on the backing plate 23. A first limit switch 10 and a second limit switch 11 are respectively arranged on the side wall inside the solid feeding box 5, wherein the first limit switch 10 is located above the first fixed shaft 17 and on the same vertical line therewith, when the first guide plate 16 rotates counterclockwise to the vertical state, the top of the first guide plate 16 contacts with the first limit switch 10, at this time, the first motor 6 stops operating, the crude cyanuric acid passes through two sides of the first guide plate 16 and falls into the bottomless basket 24, when the weight sensor 22 determines that the weight of the crude cyanuric acid that has flowed into the bottomless basket 24 is close to the set weight, when the first motor 6 rotates forward, the first guide plate 16 rotates clockwise, one end of the first guide plate 16 rotates to contact with the second limit switch 11, the other end of the first motor 6 just faces the recycling port 25, the first motor stops working at the moment, and the crude cyanuric acid returns to the feeding device through the recycling port 25. The front end of the solid feeding box 5 is connected with a cylinder support 4, a first cylinder 19 is fixedly mounted on the cylinder support 4, a piston rod of the first cylinder 19 is fixedly connected with a bottomless basket 24, when feeding of a space formed by the backing plate 23 and the bottomless basket 24 reaches a set value, the bottomless basket 24 can slide to the outside of the solid feeding box 5 along the horizontal direction through the first cylinder 19, and crude cyanuric acid is discharged onto a second guide plate 28.
In this embodiment, each feed port 43 is slidably provided with a sealing cover 41 adapted to the feed port in the horizontal direction, the sealing cover 41 is drivingly connected to the second cylinder 40 fixed to the top of the reaction vessel 1, and in order to improve the sealing performance during the internal reaction of the reaction vessel 1, locking mechanisms 8 are further provided on both sides of the feed port 43.
Specifically, the locking mechanism 8 in this embodiment includes an L-shaped plate 35 fixed on both sides of the feeding port 43 and an L-shaped plug 36 fixed on both sides of the sealing cover 41, the top of the L-shaped plate 35 is rotatably connected with a torque arm 37 matched with the L-shaped plug 36 through a third rotating shaft 39, a second spring 38 is connected between the end of the torque arm 37 and the short side of the L-shaped plate 35, after the crude cyanuric acid is added into the reaction kettle 1, the second cylinder 40 pushes the sealing cover 41 to move, the L-shaped plug 36 pushes the torque arm 37 when the feeding port 43 is closed, and the torque arm 37 rotates downward and presses the sealing cover 41 to achieve the sealing effect.
The invention provides a cyanuric acid refining and pressurizing reaction device, when in work, crude cyanuric acid produced in the previous working procedure is poured into a reaction kettle 1 through a solid feeding box 5 by a feeding device, a first guide plate 16 in the solid feeding box 5 is in a vertical state in the initial state, the crude cyanuric acid continuously falls into a space formed by a backing plate 23 and a bottomless basket 24 through two sides of the first guide plate 16, when the weight sensor 22 determines that the weight of the crude cyanuric acid that has flowed into the bottomless basket 24 is close to the set weight, when the switch SB3 is powered on, the first motor 6 starts to rotate forward, the first guide plate 16 rotates clockwise, one end of the first guide plate 16 rotates to contact with the second limit switch 11, the other end of the first limit switch is just towards the recycling port 25, the contact of the second limit switch 11 is disconnected, the first motor 6 stops operating, and the crude cyanuric acid returns to the feeding device through the recycling port 25. Since the control circuit of the second motor 31 is connected to the control circuit of the first motor 6, when the feeding device feeds materials to the solid feeding box 5, the second motor 31 is kept still all the time, when the blanking is close to the set weight in the space formed by the backing plate 23 and the bottomless basket 24, and one end of the first guide plate 16 rotates to be in contact with the second limit switch 11, the second motor 31 starts to operate. The initial state of the second guide plate 28 is kept vertical, when the two reaction kettles 1 need to be charged simultaneously, the second motor 31 is kept still, the charging in the space formed by the backing plate 23 and the bottomless basket 24 is doubled, then the first air cylinder 19 is started to pull the bottomless basket 24 to slide to the outside of the solid feeding box 5, and the crude cyanuric acid is uniformly added into the two reaction kettles 1 through the two sides of the second guide plate 28. When the reaction kettle 1 on the left side needs to be charged, the switch SB4 is pressed, the second motor 31 rotates reversely (anticlockwise), the rotating rod 33 rotates anticlockwise around the second rotating shaft 32, the second guide plate 28 slides downwards along the first fixing plate 20 and the second fixing plate 27 and rotates clockwise around the bearing 30, when the second guide plate 28 rotates to contact with the third limit switch 12, the normally closed contact of the third limit switch 12 is disconnected, the second motor 31 stops operating, the bottom of the second guide plate 28 is just aligned with the feed inlet 43 on the left side, and the crude cyanuric acid enters the reaction kettle 1 on the left side through the second guide plate 28. When the right-side reaction kettle 1 needs to be charged, the switch SB5 is pressed, the second motor 31 rotates clockwise, the rotating rod 33 rotates clockwise around the second rotating shaft 32, when the second guide plate 28 rotates to contact with the fourth limit switch 13, the normally closed contact of the fourth limit switch 13 is disconnected, the second motor 31 stops operating, the bottom of the second guide plate 28 is just aligned with the right-side feeding hole 43, and the crude cyanuric acid enters the right-side reaction kettle 1 through the second guide plate 28.
After the crude cyanuric acid is added into the reaction kettle 1, the second cylinder 40 pushes the sealing cover 41 to move, the L-shaped plug 36 pushes the torsion arm 37 when the feed inlet 43 is closed, the torsion arm 37 rotates downwards and presses the sealing cover 41 tightly, then the sulfuric acid solution in the liquid feed box 3 flows into the reaction kettle 1, steam enters the reaction kettle 1 through the air inlet 2, and the temperature and the pressure in the reaction kettle reach reaction conditions to perform reaction along with the steam entering the reaction kettle 1; cooling cyanuric acid obtained after the reaction, washing with water and separating to obtain fine cyanuric acid.
In the description of the present invention, the terms "first", "second", "another", and "yet" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. The utility model provides a pressure reaction unit is refine to cyanuric acid, includes two reation kettle (1), and the top of every reation kettle (1) is provided with air inlet (2), liquid feeding case (3) and feed inlet (43) respectively, and the bottom of reation kettle (1) is equipped with discharge gate (9), and discharge gate (9) department sets up bleeder valve (42), its characterized in that: install feeding tilting mechanism (7) between the top of two reation kettle (1), the top of feeding tilting mechanism (7) is equipped with solid feeding case (5), and the inside crude cyanuric acid of solid feeding case (5) is leading-in to arbitrary feed inlet (43) or is leading-in to two feed inlets (43) simultaneously through feeding tilting mechanism (7).
2. The pressurized reaction device for cyanuric acid purification according to claim 1, wherein: the feeding turnover mechanism (7) comprises a second guide plate (28), the front surface and the back surface of the second guide plate (28) are of an inclined structure from a middle position to a bottom end, a first fixing plate (20) and a second fixing plate (27) are respectively arranged on two sides of the second guide plate (28), first sliding grooves (26) are respectively formed in the inner sides of the first fixing plate (20) and the second fixing plate (27) along the vertical direction, bearings (30) are respectively connected in the two first sliding grooves (26) in a sliding manner, second fixing shafts (29) are respectively sleeved on the inner rings of the two bearings (30) in a rotating manner, the two second fixing shafts (29) are respectively fixed on two sides of the second guide plate (28), a fourth limit switch (13) is welded at a position, close to the bottom of the right side of the first fixing plate (20), a third limit switch (12) is welded at a position, close to the bottom of the left side of the second fixing plate (27), a second motor (31) is fixedly installed at the bottom end of the front end surface of the second fixing plate (27), the output end of the second motor (31) is connected with a second rotating shaft (32) in a driving mode, the second rotating shaft (32) is rotatably installed between the first fixing plate (20) and the second fixing plate (27), a notch is formed in the bottom end of the second guide plate (28), a third fixing shaft (34) is fixed in the notch, a rotating rod (33) is connected between the third fixing shaft (34) and the second rotating shaft (32), one end of the rotating rod (33) is rotatably connected with the third fixing shaft (34), and the other end of the rotating rod is connected with the second rotating shaft (32) in a welding mode.
3. The pressurized reaction device for purifying cyanuric acid according to claim 1 or 2, wherein: fixedly connected with backup pad (21) between two reation kettle (1), solid feeding case (5) fixed mounting is at the top of backup pad (21), fixed mounting has first motor (6) on the outer wall of one side of solid feeding case (5), the inside of solid feeding case (5) is equipped with first rotation axis (14), first rotation axis (14) pass solid feeding case (5) inner wall and the motor shaft fixed connection of first motor (6), fixed spring telescopic link (15) of having cup jointed on first rotation axis (14), recovery mouth (25) have been seted up along the incline direction on the back wall of solid feeding case (5), the inside of solid feeding case (5) is provided with first baffle (16) to the position department that should retrieve mouth (25), the spout has been seted up to the both sides of first baffle (16), the middle part of two spouts all is equipped with first fixed axle (17), two first fixed axle (17) are fixed respectively at the inner wall of solid feeding case (5) and are in with first rotation axis (14) and are in the top of backup pad (21) On the same vertical line, a first guide plate (16) is in sliding connection with a first fixed shaft (17) through a sliding groove, the top end of a spring telescopic rod (15) is hinged to the bottom end of one side, close to a recycling port (25), of the first guide plate (16), the first guide plate (16) swings around the first fixed shaft (17) while being driven (15) to slide relative to the first fixed shaft (17) through the spring telescopic rod, a first limit switch (10) and a second limit switch (11) are respectively installed on the side wall inside a solid feeding box (5), the first limit switch (10) is located above the first fixed shaft (17) and located on the same vertical line with the first fixed shaft, and when one end of the first guide plate (16) rotates to be in contact with the second limit switch (11), the other end of the first guide plate faces the recycling port (25); the cavity bottom fixed mounting of solid feeding case (5) has weighing sensor (22), the upper end fixedly connected with backing plate (23) of weighing sensor (22), no end basket (24) have been placed on backing plate (23), the front end of solid feeding case (5) is connected with cylinder support (4), fixed mounting has first cylinder (19) on cylinder support (4), the piston rod of first cylinder (19) links to each other with no end basket (24) is fixed, no end basket (24) can follow the horizontal direction through first cylinder (19) and slide to solid feeding case (5) outside.
4. The pressurized reaction device for purifying cyanuric acid according to claim 1 or 2, wherein: each feed inlet (43) is provided with a sealing cover (41) matched with the feed inlet in a sliding mode along the horizontal direction, the sealing cover (41) is in driving connection with a second cylinder (40) fixed to the top of the reaction kettle (1), and locking mechanisms (8) are further arranged on two sides of each feed inlet (43).
5. The pressurized reaction device for cyanuric acid purification according to claim 4, wherein: locking mechanism (8) are including fixing L shaped plate (35) in feed inlet (43) both sides and fixing L shape plug (36) in sealed lid (41) both sides, and the top of L shaped plate (35) rotates through third rotation axis (39) to be connected with L shape plug (36) matched with torque arm (37), is connected with second spring (38) between the end of torque arm (37) and the minor face of L shaped plate (35).
6. A cyanuric acid production method, which adopts the cyanuric acid refining pressure reaction device of any one of claims 1, 2 and 5, and is characterized by comprising the following steps:
step one, crude cyanuric acid in a solid feeding box (5) is guided into one of the reaction kettles (1) or simultaneously guided into the two reaction kettles (1) through a feeding turnover mechanism (7);
step two, enabling the sulfuric acid solution in the liquid feeding box (3) to flow into the reaction kettle (1), enabling steam to enter the reaction kettle (1) through the air inlet (2), and enabling the temperature and the pressure in the reaction kettle to increase to reach reaction conditions to perform reaction along with the steam entering the reaction kettle (1);
and step three, cooling the cyanuric acid obtained after the reaction, washing with water and separating to obtain fine cyanuric acid.
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