CN114130304B - 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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- CN114130304B CN114130304B CN202111333583.6A CN202111333583A CN114130304B CN 114130304 B CN114130304 B CN 114130304B CN 202111333583 A CN202111333583 A CN 202111333583A CN 114130304 B CN114130304 B CN 114130304B
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- feeding
- guide plate
- feeding box
- cyanuric acid
- reaction
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 89
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000007670 refining Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title abstract description 10
- 239000007787 solid Substances 0.000 claims abstract description 57
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 230000007306 turnover Effects 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 18
- 238000011084 recovery Methods 0.000 claims description 15
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
Abstract
The invention discloses a cyanuric acid refining and pressurizing reaction device and method, comprising 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 led into any feeding hole or both feeding holes through the feeding turnover mechanism. According to the invention, the feeding turnover mechanism is arranged between the tops of the two reaction kettles, the crude cyanuric acid in the solid feeding box is led into any one feeding hole or two feeding holes simultaneously through the feeding turnover mechanism, the feeding to the two reaction kettles can be realized through one feeding turnover mechanism, the feeding mode is flexible and changeable, and the feeding can be realized simultaneously and independently.
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 refining reaction tank, crude cyanuric acid is added into the reaction tank, and after the reaction tank is filled with steam and the reaction is completed under pressure, the crude cyanuric acid is cooled and washed. However, when crude cyanuric acid is added into the reaction kettles, the reaction kettles basically adopt an independent feeding mode, namely, a solid feeding box is arranged at a feed inlet of each reaction kettle, and the discharge ends of the solid feeding boxes are accurately fed through a guide mechanism, but when two or more reaction kettles are put into use for producing cyanuric acid, the cost of the solid feeding boxes and the guide mechanism on each reaction kettle is too high, so that the invention provides a cyanuric acid refining and pressurizing reaction device and method.
Disclosure of Invention
The invention aims to provide a cyanuric acid refining and pressurizing reaction device and method, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a cyanuric acid refines pressurization reaction unit, including two reation kettle, every reation kettle's top is provided with air inlet, liquid feeding case and feed inlet respectively, and reation kettle's bottom is equipped with the discharge gate, and discharge gate department sets up the bleeder valve, installs feeding tilting mechanism between two reation kettle's the top, and feeding tilting mechanism's top is equipped with the solid feeding case, and the inside crude cyanuric acid of solid feeding case is imported to any feed inlet or is imported to two feed inlets simultaneously through feeding tilting mechanism.
Preferably, the feeding turnover mechanism comprises a second guide plate, the front surface and the back surface of the second guide plate are of an inclined structure from the middle position to the bottom end, a first fixing plate and a second fixing plate are respectively arranged on two sides of the second guide plate, a first sliding groove is respectively formed in the inner side of the first fixing plate and the inner side of the second fixing plate along the vertical direction, bearings are respectively connected in the two first sliding grooves in a sliding manner, the inner rings of the two bearings are respectively and rotatably sleeved with a second fixing shaft, the two second fixing shafts are respectively fixed on two sides of the second guide plate, a fourth limit switch is welded at the position, close to the bottom, of the right side of the first fixing plate, a third limit switch is welded at the position, close to the bottom, of the left side of the second fixing plate, a second motor is fixedly arranged at the bottom end of the front end face of the second fixing plate, a second rotating shaft is connected with the second rotating shaft in a driving manner, the second rotating shaft is rotatably arranged between the first fixing plate and the second fixing plate, a notch is formed in the bottom end of the second sliding manner, a third fixing shaft is fixedly connected with the notch 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 third fixing shaft.
Preferably, a supporting plate is fixedly connected between the two reaction kettles, a solid feeding box is fixedly arranged at the top of the supporting plate, a first motor is fixedly arranged on the outer wall of one side of the solid feeding box, a first rotating shaft is arranged in the solid feeding box, the first rotating shaft penetrates through the inner wall of the solid feeding box and is fixedly connected with the 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 along the inclined direction, a first guide plate is arranged at the position of the solid feeding box, corresponding to the recovery port, in the inside, of the solid feeding box, sliding grooves are formed in the two sides of the first guide plate, first fixing shafts are respectively arranged in the middle of the two sliding grooves, 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 and the first fixing shaft are in sliding connection, the top of the spring telescopic rod is hinged to the bottom end of one side, close to the recovery port, the first guide plate is driven by the spring telescopic rod to slide relative to the first fixing shaft, a first limit switch and a second limit switch is respectively arranged on the side wall of the inside of the solid feeding box, wherein the first limit switch and the second limit switch are positioned above the first limit switch and face to the first limit switch and the limit switch when the first limit switch and the first limit switch is in contact with the first limit switch and the second limit switch and the first limit switch and the limit switch; 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, the base plate is provided with a bottom basket, 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 bottom basket, and the bottom basket can slide to the outside of the solid feeding box along the horizontal direction through the first cylinder.
Preferably, each feeding hole is provided with a sealing cover which is matched with the feeding hole 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 two sides of each feeding hole are also provided with locking mechanisms.
Preferably, the locking mechanism comprises L-shaped plates fixed on two sides of the feed inlet and L-shaped plugs fixed on two sides of the sealing cover, the top of each L-shaped plate is rotationally connected with a torsion arm matched with each L-shaped plug through a third rotating shaft, and a second spring is connected between the tail end of each torsion arm and the short side of each L-shaped plate.
The invention also provides a cyanuric acid manufacturing method, which adopts the cyanuric acid refining and pressurizing reaction device, and comprises the following steps:
step one, introducing crude cyanuric acid in a solid feeding box into one of the reaction kettles or simultaneously introducing the crude cyanuric acid into the two reaction kettles through a feeding turnover mechanism;
step two, sulfuric acid solution in the liquid feeding box flows into the reaction kettle, steam enters the reaction kettle through the air inlet, and the temperature and the pressure in the reaction kettle are increased to reach reaction conditions along with the steam entering the reaction kettle to react;
and thirdly, cooling the cyanuric acid obtained after the reaction, washing with water and separating to obtain refined cyanuric acid.
Compared with the prior art, the invention provides a cyanuric acid refining and pressurizing reaction device and 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, the crude cyanuric acid in the solid feeding box is led into any one feeding hole or two feeding holes simultaneously through the feeding turnover mechanism, the feeding to the two reaction kettles can be realized through one feeding turnover mechanism, the feeding mode is flexible and changeable, and the feeding can be realized simultaneously and independently.
The invention is also provided with locking mechanisms at two sides of the feed inlet, when crude cyanuric acid is added into the reaction kettle, the second cylinder pushes the sealing cover to move, the L-shaped plug is propped against the torsion arm when the feed inlet is closed, and the torsion arm rotates downwards and compresses the sealing cover to achieve the sealing effect.
The side wall inside the solid feeding box is respectively provided with a first limit switch and a second limit switch, when the first guide plate rotates anticlockwise to a vertical state, crude cyanuric acid is blanked into the bottomless basket through two sides of the first guide plate, when the weight sensor detects that the weight of the crude cyanuric acid flows into the bottomless basket to be close to the set weight, the first motor drives the first guide plate to rotate clockwise, one end of the first guide plate rotates to the second limit switch, the other end of the first guide plate faces the recovery port exactly, and the crude cyanuric acid returns to the feeding device through the recovery port, so that the non-stop quantitative feeding of the feeding device is realized.
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 and together with the embodiments of the invention and do not constitute a limitation to the invention, and in which:
FIG. 1 is a schematic diagram of the entire apparatus of the present invention;
FIG. 2 is a schematic view of the internal structure of the solids feed box;
FIG. 3 is a schematic view of the internal structure of the spring telescoping rod;
FIG. 4 is a schematic view of the overall structure of the feed turnover mechanism of the present invention;
FIG. 5 is a schematic view of a locking mechanism according to the present invention;
FIG. 6 is a schematic front view of the entire apparatus of the present invention;
FIG. 7 is a schematic view of the enlarged partial structure A in FIG. 6;
FIG. 8 is a schematic diagram of the electrical principle of the four limit switches controlling two motors according to the present invention;
FIG. 9 is a schematic diagram of the process flow for manufacturing cyanuric acid.
In the figure: 1. a reaction kettle; 2. an air inlet; 3. a liquid feed tank; 4. a cylinder bracket; 5. a solids 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 rotation shaft; 15. a spring telescoping 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 backing plate; 24. a bottom basket is not arranged; 25. recovering the mouth; 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. a rotating lever; 34. a third fixed shaft; 35. an L-shaped plate; 36. an L-shaped plug; 37. twisting arms; 38. a second spring; 39. a third rotation shaft; 40. a second cylinder; 41. sealing cover; 42. a discharge valve; 43. and a feed inlet.
SQ1, SQ2, SQ3, SQ4 in fig. 8 represent a first limit switch 10, a second limit switch 11, a third limit switch 12, and a fourth limit switch 13, respectively.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. The components of the 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 invention, as 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 made by a person skilled in the art without making any inventive effort, are intended to be within the 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 the orientations or positional relationships shown in the drawings are merely for convenience in describing the embodiments of the present invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, 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, wherein an air inlet 2, a liquid feeding box 3 and a feeding hole 43 are respectively arranged at the top of each reaction kettle 1, the air inlet 2 is used for introducing steam into the reaction kettle 1, the liquid feeding 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 feeding hole 43, a discharging hole 9 is arranged at the bottom of the reaction kettle 1, a discharging valve 42 is arranged at the discharging hole 9, and after the reaction is completed, the discharging hole 9 is opened through the discharging valve 42, and the cyanuric acid after 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 led into any one feeding hole 43 or two feeding holes 43 at the same time through the feeding turnover mechanism 7, feeding to the two reaction kettles 1 can be realized through one feeding turnover mechanism 7, and feeding modes are flexible and changeable, so that feeding can be carried out simultaneously and feeding can be carried out to the reaction kettles 1 independently.
Specifically, the feeding turnover mechanism 7 includes a second guide plate 28, the front and back sides of the second guide plate 28 are in an inclined structure from the middle position to the bottom end, the inclined structure can facilitate the second guide plate 28 to simultaneously feed materials into the two reaction kettles 1, the 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 and slidably connected in the two first chutes 26, the inner rings of the two bearings 30 are respectively and rotatably sleeved with a second fixing shaft 29, the two second fixing shafts 29 are respectively fixed on the 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 in driving connection with a second rotating shaft 32, the second rotating shaft 32 is rotatably mounted between the first fixing plate 20 and the second fixing plate 27, the bottom end of the second guide plate 28 is fixedly provided with a third fixing shaft 34 in the vertical direction, 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 correspondingly welded with the second fixing shaft 32, and the other end of the second fixing shaft 34 is connected with the second inclined surface 43 through the second inclined surface and the second guide plate 32. Fig. 4 shows a state that the materials are introduced into the left reaction kettle 1, when two reaction kettles 1 need to be fed at the same time, the second motor 31 rotates clockwise, the second motor 31 drives the second rotating shaft 32 to rotate, the rotating rod 33 rotates clockwise by taking the second rotating shaft 32 as the center, and then 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, the second guide plate 28 rotates anticlockwise by taking the bearing 30 as the center because the rotating rod 33 performs circular motion, when the rotating rod 33 rotates to the vertical state, the second guide plate 28 and the right are in the vertical state at the moment, and the crude cyanuric acid is divided into two parts to flow into the left reaction kettle 1 and the right reaction kettle 1 through the second guide plate 28. The position of the right side of the first fixing plate 20 near the bottom is welded with a fourth limit switch 13, the position of the left side of the second fixing plate 27 near the bottom is welded with a third limit switch 12, the fourth limit switch 13 and the third limit switch 12 are limit positions of the swing of the second guide plate 28, and when the swing of the second guide plate 28 touches the fourth limit switch 13 and the third limit switch 12, the second motor 31 stops acting.
A supporting plate 21 is fixedly connected between the two reaction kettles 1, and a solid feeding box 5 is fixedly arranged at the top of the supporting plate 21.
The solid feeding box 5 is fixedly provided with a first motor 6 on the outer wall of one side, the inside of the solid feeding box 5 is provided with a first rotating shaft 14, 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 in 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 at the position, corresponding to the recovery opening 25, of the inside of the solid feeding box 5, sliding grooves are formed in two sides of the first guide plate 16, first fixing shafts 17 are respectively 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 and the first fixing shafts 17 are in sliding connection 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, the first guide plate 16 slides relative to the first fixing shafts 17 through the spring telescopic rod, and the first guide plate 16 swings around the first fixing shafts 17. Referring to fig. 2, the first motor 6 rotates the first rotation shaft 14 reversely (counterclockwise), the spring telescopic rod 15 rotates clockwise around the first rotation shaft 14 according to the direction shown in fig. 2, the spring telescopic rod 15 acts on the first guide plate 16 to slide upward relative to the first fixed shaft 17, and simultaneously, the first guide plate 16 rotates counterclockwise relative to the first fixed shaft 17 due to the circular motion of the spring telescopic rod 15, the first spring 18 inside the spring telescopic rod 15 is compressed during the clockwise rotation of the spring telescopic rod 15, and the first guide plate 16 rotates counterclockwise to be vertical.
The bottom of the cavity of the solid feeding box 5 is fixedly provided with a weight sensor 22, the upper end of the weight sensor 22 is fixedly connected with a base plate 23, and a bottom basket 24 is arranged on the base plate 23. The side wall inside the solid feeding box 5 is respectively provided with a first limit switch 10 and a second limit switch 11, wherein the first limit switch 10 is positioned above the first fixed shaft 17 and is positioned on the same vertical line with the first fixed shaft, when the first guide plate 16 rotates anticlockwise to a vertical state, the top of the first guide plate 16 is contacted with the first limit switch 10, at the moment, the first motor 6 stops acting, crude cyanuric acid is blanked into the bottomless basket 24 through the two sides of the first guide plate 16, when the weight sensor 22 determines that the weight of the crude cyanuric acid flows into the bottomless basket 24 to be close to the set weight, the first motor 6 rotates positively, the first guide plate 16 rotates clockwise, one end of the first guide plate 16 rotates to be contacted with the second limit switch 11, the other end of the first guide plate just faces the recovery port 25, at the moment, the first motor 6 stops acting, and the crude cyanuric acid returns into the feeding device through the recovery port 25. The front end of the solid feeding box 5 is connected with a cylinder bracket 4, a first cylinder 19 is fixedly arranged on the cylinder bracket 4, a piston rod of the first cylinder 19 is fixedly connected with a bottomless basket 24, when space feeding formed by a base 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 blanked onto a second guide plate 28.
In this embodiment, a sealing cover 41 adapted to each feeding hole 43 is slidably mounted on each feeding hole along the horizontal direction, the sealing cover 41 is in driving connection with a second cylinder 40 fixed on the top of the reaction kettle 1, and in order to improve the tightness of the reaction inside the reaction kettle 1, locking mechanisms 8 are further arranged on two sides of the feeding hole 43.
Specifically, the locking mechanism 8 in this embodiment includes an L-shaped plate 35 fixed on two sides of the feed inlet 43 and an L-shaped plug 36 fixed on two sides of the sealing cover 41, the top of the L-shaped plate 35 is rotatably connected with a torsion arm 37 matched with the L-shaped plug 36 through a third rotation shaft 39, a second spring 38 is connected between the end of the torsion 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, when the feed inlet 43 is closed, the L-shaped plug 36 is propped against the torsion arm 37, and the torsion arm 37 rotates downwards and compresses the sealing cover 41 to achieve the sealing effect.
The invention provides a cyanuric acid refining and pressurizing reaction device, when the cyanuric acid refining and pressurizing reaction device works, crude cyanuric acid produced in the previous working procedure is poured into a reaction kettle 1 through a solid feeding box 5, a first guide plate 16 in the solid feeding box 5 is in an initial state and is in a vertical 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 a weight sensor 22 measures that the weight of the crude cyanuric acid flowing into the bottomless basket 24 approaches a set weight, a switch SB3 is electrically conducted, a first motor 6 starts to rotate positively, the first guide plate 16 rotates clockwise, one end of the first guide plate 16 rotates to be in contact with a second limit switch 11, the other end of the first guide plate just faces a recovery port 25, the contact of the second limit switch 11 is disconnected, the first motor 6 stops acting, and the crude cyanuric acid returns into the feeding device through the recovery port 25. Since the control circuit of the second motor 31 is connected to the control circuit of the first motor 6, the second motor 31 is kept still all the time when the feeding device feeds the solid feeding box 5, and when the space formed by the base plate 23 and the bottomless basket 24 is blanked to be close to the set weight, the second motor 31 starts to act when one end of the first guide plate 16 rotates to be in contact with the second limit switch 11. The initial state of the second guide plate 28 is kept in a vertical state, when feeding into the two reaction kettles 1 is needed, the second motor 31 is kept still, feeding in a space formed by the base plate 23 and the bottomless basket 24 is doubled, then the first cylinder 19 is started to pull the bottomless basket 24 to slide to the outside of the solid feeding box 5, and crude cyanuric acid is uniformly added into the two reaction kettles 1 through two sides of the second guide plate 28. When the left reaction kettle 1 needs to be charged, the switch SB4 is pressed down, the second motor 31 is reversed (anticlockwise), the rotating rod 33 rotates anticlockwise by taking the second rotating shaft 32 as the center, the second guide plate 28 rotates clockwise by taking the bearing 30 as the center while sliding downwards along the first fixing plate 20 and the second fixing plate 27, when the second guide plate 28 rotates to be in contact with the third limit switch 12, the normally closed contact of the third limit switch 12 is disconnected, the second motor 31 stops acting, the bottom of the second guide plate 28 is just aligned with the left feed inlet 43, and crude cyanuric acid enters the left reaction kettle 1 through the second guide plate 28. When the right reaction kettle 1 needs to be charged, the switch SB5 is pressed, the second motor 31 rotates forward (clockwise), the rotating rod 33 rotates clockwise by taking the second rotating shaft 32 as the center, when the second guide plate 28 rotates to be in contact with the fourth limit switch 13, the normally closed contact of the fourth limit switch 13 is disconnected, the second motor 31 stops acting, at the moment, the bottom of the second guide plate 28 is just aligned with the right feed inlet 43, and crude cyanuric acid enters the right 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, when the feeding hole 43 is closed, the L-shaped plug 36 is propped against the torsion arm 37, the torsion arm 37 rotates downwards and compresses the sealing cover 41, then the sulfuric acid solution in the liquid feeding 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 are increased to reach the reaction conditions to react along with the steam entering the reaction kettle 1; the cyanuric acid obtained after the reaction is cooled, washed with water and separated to obtain refined cyanuric acid.
In the description of the present invention, the terms "first," "second," "another," "yet another" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless explicitly defined otherwise.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (2)
1. The utility model provides a cyanuric acid refines pressurization reaction unit, is including 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 discharge valve (42), its characterized in that: a feeding turnover mechanism (7) is arranged between the tops of the two reaction kettles (1), a solid feeding box (5) is arranged above the feeding turnover mechanism (7), and crude cyanuric acid in the solid feeding box (5) is led into any one of the feeding ports (43) or is led into the two feeding ports (43) simultaneously through the feeding turnover mechanism (7);
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 the middle position to the bottom end, a first limit switch (20) and a second limit switch (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 and slidably connected in the two first sliding grooves (26), second fixing shafts (29) are respectively and rotatably sleeved on inner rings of the two bearings (30), 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 on the right side of the first fixing plate (20) close to the bottom of the second fixing plate, a third limit switch (12) is welded on the left side of the second fixing plate (27) close to the bottom of the second fixing plate, a second motor (31) is fixedly arranged at the bottom end of the front end face of the second fixing plate (27), a second rotating shaft (32) is connected with an output end of the second motor (31), the second rotating shaft (32) is rotatably sleeved on the inner ring of the second rotating shaft (28), a notch (34) is formed between the second rotating shaft (28) and the second fixing plate (28), 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 rotationally connected with the third fixed shaft (34), and the other end is welded with the second rotating shaft (32);
a supporting plate (21) is fixedly connected between two reaction kettles (1), a solid feeding box (5) is fixedly arranged at the top of the supporting plate (21), a first motor (6) is fixedly arranged on the outer wall of one side of the solid feeding box (5), a first rotating shaft (14) is arranged in 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 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 at the position of the inside of the solid feeding box (5) corresponding to the recovery opening (25), sliding grooves are formed in the two sides of the first guide plate (16), first fixing shafts (17) are respectively 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 fixing shafts (16) are in sliding connection with the first fixing shafts (17) through the sliding grooves, the top ends of the spring telescopic rod (15) are close to the first fixing shafts (16) and are in sliding connection with the first fixing shafts (16) through the sliding shafts (15) and are close to the first fixing shafts (16) and are in sliding mode, the first guide plate (16) swings with the first fixed shaft (17) as the center, a first limit switch (10) and a second limit switch (11) are respectively arranged on the side wall of the inside of the solid feeding box (5), wherein the first limit switch (10) is positioned above the first fixed shaft (17) and is positioned on the same vertical line with the first fixed shaft, and one end of the first guide plate (16) rotates until the other end of the first guide plate contacts with the second limit switch (11) when the other end of the first guide plate faces the recovery port (25); the bottom of a cavity of the solid feeding box (5) is fixedly provided with a weight sensor (22), the upper end of the weight sensor (22) is fixedly connected with a base plate (23), a bottomless basket (24) is placed on the base plate (23), the front end of the solid feeding box (5) is connected with a cylinder bracket (4), a first cylinder (19) is fixedly arranged on the cylinder bracket (4), a piston rod of the first cylinder (19) is fixedly connected with the bottomless basket (24), and the bottomless basket (24) can slide to the outside of the solid feeding box (5) along the horizontal direction through the first cylinder (19);
a first spring (18) is arranged in the spring telescopic rod (15), and crude cyanuric acid is blanked onto a second guide plate (28);
a sealing cover (41) matched with each feeding hole (43) is arranged on each feeding hole in a sliding mode along the horizontal direction, the sealing cover (41) is in driving connection with a second air cylinder (40) fixed at the top of the reaction kettle (1), and locking mechanisms (8) are further arranged on two sides of each feeding hole (43);
the locking mechanism (8) comprises L-shaped plates (35) fixed on two sides of the feeding hole (43) and L-shaped plugs (36) fixed on two sides of the sealing cover (41), torsion arms (37) matched with the L-shaped plugs (36) are rotatably connected to the tops of the L-shaped plates (35) through a third rotating shaft (39), and second springs (38) are connected between the tail ends of the torsion arms (37) and the short sides of the L-shaped plates (35).
2. A cyanuric acid production method using the cyanuric acid refining and pressurizing reaction apparatus according to claim 1, comprising the steps of:
step one, crude cyanuric acid in the solid feeding box (5) is guided into one of the reaction kettles (1) or into two reaction kettles (1) at the same time through a feeding turnover mechanism (7);
step two, sulfuric acid solution in the liquid feeding 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 are increased to reach reaction conditions along with the steam entering the reaction kettle (1) to react;
and thirdly, cooling the cyanuric acid obtained after the reaction, washing with water and separating to obtain refined cyanuric acid.
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| CN202111333583.6A CN114130304B (en) | 2021-11-11 | 2021-11-11 | Cyanuric acid refining and pressurizing reaction device and method |
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| CN114130304A (en) | 2022-03-04 |
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