A continuous discharging device and discharging method for ammonium perchlorate evaporation crystallization equipment

Abstract

The present invention relates to the technical field of evaporation and crystallization, and discloses a continuous discharging device and a discharging method for ammonium perchlorate evaporation and crystallization equipment, wherein the discharging device comprises a crystallization device and a continuous discharging mechanism; the crystallization device comprises an evaporation and crystallization tank, and a stirring paddle is arranged inside the evaporation and crystallization tank; the continuous discharging mechanism comprises a rotating scraper, and the scraper is arranged on the outside of the stirring paddle, and the scraper is used to scrape the inner side and inner bottom of the evaporation and crystallization tank. The evaporation and crystallization tank of the present invention is equipped with a stirring paddle inside, and the continuous discharging mechanism comprises a rotating scraper and a discharging trough. The scraper is located on the outside of the stirring paddle, and is specially designed to scrape the inner side and inner bottom of the evaporation and crystallization tank, which effectively solves the problem of scraping crystals in these areas. After the scraper scrapes off the crystals, it pushes them into the discharging trough, and the screw conveyor connected to the outside of the discharging trough is responsible for continuously conveying the crystals out of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of evaporation and crystallization, and in particular to a continuous discharging device and a discharging method for ammonium perchlorate evaporation and crystallization equipment. Background Art

[0002] Ammonium perchlorate is a chemical substance, usually in the form of colorless crystals. It is an oxidant and a strong explosive compound. It is often used in rocket propellants, explosives compounds, analytical agents, etc. It has a wide range of uses in real life. In the current preparation process of ammonium perchlorate, the ammonium perchlorate solution is placed in a cooling crystallization tank for cooling crystallization treatment to finally obtain ammonium perchlorate crystals.

[0003] The prior art discloses a rapid evaporation and salt mining device for ammonium perchlorate mother liquor (publication number CN117482542A). In the invention, the transfer pipe drives the stirring blade to rotate through the sliding sleeve, and the stirring blade turns the ammonium perchlorate mother liquor, so that the temperature of the ammonium perchlorate mother liquor at various positions inside the inner barrel is basically the same, thereby avoiding the phenomenon of uneven heating of the mother liquor, shortening the evaporation time, and improving the evaporation efficiency. However, the scheme still has the following technical problems in specific implementation: however, ammonium perchlorate is generally heated by a jacket during evaporation and crystallization, and the position where the crystals are first generated is generally located on the inner wall of the evaporation and crystallization tank, especially the inner bottom of the evaporation and crystallization tank. Since the gradual precipitation of crystals will form a crystal bed at the bottom of the evaporation and crystallization tank, it is difficult to continuously discharge the generated crystals through the conventional device with a scraper in the prior art. Summary of the invention

[0004] The purpose of the present invention is to provide a technical solution, which can effectively scrape multiple positions inside the evaporation crystallization tank through a scraping member, and continuously discharge the material with a matching structure during the scraping process, so as to solve the problems in the prior art raised in the above background technology.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A continuous discharging device for ammonium perchlorate evaporation and crystallization equipment, comprising:

[0007] Crystallization equipment and continuous discharging mechanism;

[0008] The crystallization equipment comprises an evaporation crystallization tank, and a stirring paddle is arranged inside the evaporation crystallization tank; the continuous discharging mechanism comprises a rotating scraper, and the scraper is arranged outside the stirring paddle, and the scraper is used to scrape the inner side and inner bottom of the evaporation crystallization tank;

[0009] The continuous discharging mechanism includes a discharging trough, which is arranged at the bottom of the evaporation crystallization tank. A screw conveyor is installed on the outside of the discharging trough. A reciprocating push plate is arranged inside the discharging trough. After the scraper rotates to scrape off the crystals attached to the evaporation crystallization tank, the scraper pushes the crystals into the discharging trough, and the crystals in the discharging trough are continuously discharged through the screw conveyor.

[0010] Preferably, a conical protrusion is provided at the inner bottom of the evaporation crystallization tank, and the scraper includes a side wall scraper, a bottom scraper and an inclined scraper, the side wall scraper is attached to the inner side wall of the evaporation crystallization tank, the bottom scraper is attached to the inner bottom surface of the evaporation crystallization tank, and the inclined scraper is attached to the conical surface of the conical protrusion.

[0011] Preferably, a driving motor is installed at the bottom of the evaporation crystallization tank, and the driving motor drives the scraper to rotate through the rotating shaft. The bottom of the paddle rod of the stirring paddle is rotatably connected to the top of the rotating shaft through a rotating bearing.

[0012] Preferably, a cam is installed on the output shaft of the driving motor, a movable rod is slidably inserted in the discharge trough, a push plate is fixedly connected to the end of the movable rod, the push plate is slidably set in the discharge trough, and a reset spring for resetting the push plate is arranged inside the discharge trough, one end of the reset spring is connected to the push plate, and the other end of the reset spring is connected to the inner wall of the discharge trough away from the push plate.

[0013] Preferably, a driving gear is installed on the stirring paddle, a mounting seat is provided on the inner side surface of the scraping member, a rotating rod is rotatably installed on the mounting seat, a passive gear meshing with the driving gear is installed on the rotating rod, a yielding recess is provided at the bottom of the scraping member, a rotating member is connected to the bottom of the rotating rod, the rotating member is located in the yielding recess, the rotating member is attached to the inner bottom of the evaporation crystallization tank, and when the stirring paddle and the scraping member rotate relative to each other, the rotating rod drives the rotating member to crush the crystals at the bottom of the evaporation crystallization tank.

[0014] Preferably, a rotating circle is installed on the stirring paddle, a contact seat is provided on the inner side of the scraper, and multiple groups of protrusions are provided on the rotating circle. When the rotating circle rotates, the protrusions contact with the contact seat to generate vibration, so as to promote the scraping operation of the scraper on the inside of the evaporation crystallization tank.

[0015] Preferably, a clearance groove for installing the discharge chute is provided at the bottom of the evaporation crystallization tank, and the movable range of the push plate never exceeds the bottom edge of the conical protrusion.

[0016] Preferably, the inlet end of the screw conveyor is connected to the end of the discharge trough, the auger inside the screw conveyor extends to the inside of the discharge trough, a limiting rod is provided on the side wall of the discharge trough, and the auger end of the screw conveyor is rotatably mounted on the limiting rod.

[0017] Preferably, a feed pipe is provided on the top of the evaporation crystallization tank, and a temperature control jacket is provided on the outside of the evaporation crystallization tank, and the temperature control jacket is used to provide heat for evaporation crystallization of the evaporation crystallization tank.

[0018] The present invention also provides a discharging method of a continuous discharging device of an ammonium perchlorate evaporation and crystallization equipment, comprising the following steps:

[0019] Evaporation crystallization, heating the evaporation crystallization tank through a temperature control jacket, so that the ammonium perchlorate solution evaporates and crystallizes in the evaporation crystallization tank, and the stirring paddle is continuously stirred during the evaporation crystallization process;

[0020] Crystal scraping, the rotating scraper starts to work, the scraper fits inside the evaporation crystallization tank and scrapes the crystals;

[0021] Crystal crushing: under the relative rotation of the stirring paddle and the scraper, the gear structure cooperates with the rotating rod to drive the rotating part to rotate, so as to crush the crystals attached to the bottom of the evaporation crystallization tank;

[0022] Crystal pushing: the scraper rotates to scrape off the crystals attached to the evaporation crystallization tank, and then pushes the crystals into the discharge trough;

[0023] Continuous discharging: the push plate inside the discharging trough moves back and forth under the action of the return spring, pushing the crystals into the screw conveyor. The crystals are continuously discharged through the screw conveyor until all the crystals in the evaporation crystallization tank are discharged.

[0024] Technical effects and advantages of the present invention: Compared with the prior art, the present invention provides a continuous discharging device and discharging method for ammonium perchlorate evaporation and crystallization equipment, which has the following advantages:

[0025] The evaporation crystallization tank of the present invention is equipped with a stirring paddle inside, and the continuous discharging mechanism includes a rotating scraper and a discharging trough. The scraper is located outside the stirring paddle and is specially designed to scrape the inner side and inner bottom of the evaporation crystallization tank, which effectively solves the problem of scraping crystals in these areas. After the scraper scrapes off the crystals, it pushes them into the discharging trough, and the screw conveyor connected to the outside of the discharging trough is responsible for continuously conveying the crystals out of the equipment;

[0026] The scraping method and continuous discharging mechanism of the present invention improve the discharging efficiency, because the crystals can be continuously scraped off and transported out of the equipment, avoiding the accumulation of crystals at the bottom of the evaporation crystallization tank, and reducing production interruptions caused by intermittent discharging. Since the scraper can fully scrape the crystals, the loss and waste of crystals are reduced, and the cleaning and maintenance costs of the equipment are also reduced, because the crystals are not easy to accumulate in the equipment. In addition, the continuous discharging mechanism helps to control the particle size and morphology of the crystals, thereby improving the quality of the final product; in terms of operation, the automated discharging process reduces manual intervention, simplifies the operation process, reduces the difficulty of operation, and improves the overall production safety;

[0027] In order to solve the problem of crystal accumulation at the bottom of the evaporation crystallization tank, since the evaporation crystallization process is carried out continuously, the present application uses a continuous discharging mechanism to push out the crystals accumulated at the bottom. At the same time, since the driving mode of the continuous discharging mechanism is linked with the operation of the stirring structure, the stirring speed affects the crystallization speed of the crystals, and the discharging speed of the continuous discharging mechanism is related to the stirring speed, thereby realizing the continuous crystallization and continuous discharging process of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is one of the schematic diagrams of the internal structure of the evaporation crystallization tank of the present invention;

[0029] Figure 2 This is the second schematic diagram of the internal structure of the evaporation crystallization tank of the present invention;

[0030] Figure 3 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 4 For the present invention Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0032] Figure 5 For the present invention Figure 2 Schematic diagram of the enlarged structure at C in the middle;

[0033] Figure 6 The third schematic diagram of the internal structure of the evaporation crystallization tank of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the continuous discharging mechanism and the scraper etc. of the present invention;

[0035] Figure 8 It is a structural schematic diagram of the continuous discharging mechanism of the present invention;

[0036] Fig. 9 It is a schematic diagram of the state change of the continuous discharging mechanism of the present invention when it is working;

[0037] Fig.10It is a schematic diagram of the method flow of the discharging method of the present invention.

[0038] In the figure:

[0039] 1. Crystallization equipment; 2. Continuous discharging mechanism;

[0040] 11. Evaporation crystallization tank; 12. Paddle rod; 13. Temperature control jacket; 14. Stirring paddle; 15. Feed pipe; 16. Rotating circle; 17. Contact seat; 18. Conical protrusion; 19. Active gear; 110. Passive gear; 111. Rotating rod; 112. Rotating member; 113. Scraping member; 114. Side wall scraping member; 115. Bottom scraping member; 116. Inclined scraping member; 117. Make way depression; 118. Make way groove; 119. Mounting seat;

[0041] 21. Screw conveyor; 22. Discharge chute; 23. Driving motor; 24. Cam; 25. Movable rod; 26. Push plate; 27. Return spring; 28. Rotating shaft; 29. ​​Limit rod. DETAILED DESCRIPTION

[0042] The subject matter described herein will now be discussed with reference to example implementations. It should be understood that the discussion of these implementations is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Various examples may omit, replace, or add various processes or components as needed. In addition, the features described in some examples may also be combined in other examples.

[0043] The invention provides Figure 1-Figure 10 As shown, a continuous discharging device of ammonium perchlorate evaporation crystallization equipment comprises: a crystallization device 1 and a continuous discharging mechanism 2;

[0044] The crystallization device 1 includes an evaporation crystallization tank 11, and a stirring paddle 14 is arranged inside the evaporation crystallization tank 11; the continuous discharging mechanism 2 includes a rotating scraper 113, and the scraper 113 is arranged outside the stirring paddle 14, and the scraper 113 is used to scrape the inner side and inner bottom of the evaporation crystallization tank 11;

[0045] The continuous discharging mechanism 2 includes a discharging trough 22, which is arranged at the bottom of the evaporation crystallization tank 11. The outer side of the discharging trough 22 is connected to a screw conveyor 21, and a reciprocating push plate 26 is arranged inside the discharging trough 22. After the scraper 113 rotates to scrape off the crystals attached to the evaporation crystallization tank 11, the scraper 113 pushes the crystals into the discharging trough 22, and the crystals in the discharging trough 22 are continuously discharged through the screw conveyor 21.

[0046] Working principle: The evaporation crystallization tank 11 is equipped with a stirring paddle 14, and the continuous discharge mechanism 2 includes a rotating scraper 113 and a discharge trough 22. The scraper 113 is located outside the stirring paddle 14 and is specially designed to scrape the inner side and inner bottom of the evaporation crystallization tank 11, effectively solving the problem of scraping crystals in these areas. After the scraper 113 scrapes off the crystals, it pushes them into the discharge trough 22, and the screw conveyor 21 connected to the outside of the discharge trough 22 is responsible for continuously conveying the crystals out of the equipment;

[0047] The scraping method and the continuous discharging mechanism 2 improve the discharging efficiency, because the crystals can be continuously scraped off and transported out of the equipment, avoiding the accumulation of crystals at the bottom of the evaporation crystallization tank 11, and reducing production interruptions caused by intermittent discharging. Since the scraper 113 can scrape the crystals comprehensively, the loss and waste of crystals are reduced, and the cleaning and maintenance costs of the equipment are also reduced, because the crystals are not easy to accumulate in the equipment. In addition, the continuous discharging mechanism helps to control the particle size and morphology of the crystals, thereby improving the quality of the final product; in terms of operation, the automated discharging process reduces manual intervention, simplifies the operation process, reduces the difficulty of operation, and improves the overall production safety.

[0048] The inner bottom of the evaporation crystallization tank 11 is provided with a conical protrusion 18, and the scraper 113 includes a side wall scraper 114, a bottom scraper 115 and an inclined scraper 116. The side wall scraper 114 is attached to the inner side wall of the evaporation crystallization tank 11, the bottom scraper 115 is attached to the inner bottom surface of the evaporation crystallization tank 11, and the inclined scraper 116 is attached to the conical surface of the conical protrusion 18. Specifically, a feed pipe 15 is provided on the top of the evaporation crystallization tank 11, and a temperature control jacket 13 is provided on the outside of the evaporation crystallization tank 11, and the temperature control jacket 13 is used for evaporation and crystallization of the evaporation crystallization tank 11. Heat supply.

[0049] A driving motor 23 is installed at the bottom of the evaporation crystallization tank 11. The driving motor 23 drives the scraper 113 to rotate through the rotating shaft 28. The bottom of the paddle rod 12 of the stirring paddle 14 is rotatably connected to the top of the rotating shaft 28 through a rotating bearing. A cam 24 is installed on the output shaft of the driving motor 23. A movable rod 25 is slidably inserted in the discharge trough 22. A push plate 26 is fixedly connected to the end of the movable rod 25. The push plate 26 is slidably arranged in the discharge trough 22. A reset spring 27 for resetting the push plate 26 is arranged inside the discharge trough 22. One end of the reset spring 27 is connected to the push plate 26, and the other end of the reset spring 27 is connected to the inner wall of the discharge trough 22 away from the push plate 26.

[0050] Specifically, in the traditional evaporation crystallization process, the formation of a crystal bed often makes it difficult for the crystals to be continuously and effectively removed from the evaporation crystallization tank 11; the uniformity and discharge efficiency of the crystals, and the uneven distribution and accumulation of the crystals at the bottom of the evaporation crystallization tank 11 may affect the discharge efficiency and the quality of the crystals; this embodiment improves the discharge efficiency, and drives the scraper 113 to rotate by the driving motor 23, thereby realizing continuous scraping and discharge of the crystals, avoiding the accumulation of crystals at the bottom of the evaporation crystallization tank 11, thereby improving the discharge efficiency; ensuring uniform discharge of the crystals, the rotation of the scraper 113 ensures that the crystals are evenly scraped off from the inner side and inner bottom of the evaporation crystallization tank 11, which helps to maintain the uniformity of the crystal bed; automated operation, the automated control of the driving motor 23 reduces manual intervention, reduces labor intensity, and at the same time The safety and reliability of operation are improved; precise control, the setting of the cam 24 can realize precise control of the movement of the push plate 26, ensuring stable discharge of crystals; optimizing crystal transportation, the reciprocating motion of the push plate 26 is powered by the return spring 27, ensuring that the crystals can be effectively pushed to the screw conveyor 21, realizing continuous transportation; easy maintenance, the use of rotating bearings reduces the friction between mechanical parts, prolongs the service life of the equipment, and also facilitates the maintenance and overhaul of the equipment; reduces crystal loss, the coordinated work of the scraper 113 and the push plate 26 reduces the loss of crystals during the discharge process, and improves the utilization rate of raw materials; improves equipment stability, the configuration of the drive motor 23, the rotating shaft 28, the cam 24 and the return spring 27 work together to scrape and discharge the crystals, enhancing the stability of the entire discharge system.

[0051] A driving gear 19 is installed on the stirring paddle 14, and a mounting seat 119 is provided on the inner side surface of the scraping member 113. A rotating rod 111 is rotatably installed on the mounting seat 119, and a passive gear 110 meshing with the driving gear 19 is installed on the rotating rod 111. A yielding recess 117 is provided at the bottom of the scraping member 113, and a rotating member 112 is connected to the bottom of the rotating rod 111. The rotating member 112 is located in the yielding recess 117, and the rotating member 112 is attached to the inner bottom of the evaporation crystallization tank 11. When the stirring paddle 14 and the scraping member 113 rotate relative to each other, the rotating rod 111 drives the rotating member 112 to crush the crystals at the inner bottom of the evaporation crystallization tank 11.

[0052] A rotating circle 16 is installed on the stirring paddle 14, and a contact seat 17 is provided on the inner side of the scraper 113. The rotating circle 16 is provided with multiple groups of protrusions. When the rotating circle 16 rotates, the protrusions contact with the contact seat 17 to generate vibration, so as to promote the scraping operation of the scraper 113 on the inside of the evaporation crystallization tank 11.

[0053] Specifically, during the evaporation crystallization process, the formation of a crystal bed may make it difficult for the crystals to be effectively crushed and discharged uniformly; the uniformity of the crystals and the quality of the discharge, and the uneven distribution of the crystals at the bottom of the evaporation crystallization tank 11 may affect the quality of the crystals and the continuity of the discharge; this embodiment realizes the effective crushing of the crystals, and the meshing transmission of the active gear 19 on the stirring paddle 14 and the passive gear 110 on the scraper 113 realizes the effective crushing of the crystals at the bottom of the inner bottom, which helps to maintain the uniformity of the crystals; the continuity of the discharge is improved, and the rotating rod 111 drives the rotating member 112 to crush the crystals in the yielding recess 117, ensuring the continuous discharge of the crystal bed material, avoiding the accumulation of crystals; enhancing the scraping effect, the rotating circle 16 on the stirring paddle 14 contacts the protrusion of the contact seat 17 on the scraper 113 to generate vibration, which promotes the scraping operation of the scraper on the crystals inside the evaporation crystallization tank 11 and improves the scraping efficiency; automatic control, the entire mechanical transmission system is automatically controlled, which reduces manual intervention and improves the safety of operation and production efficiency; reduces crystal loss, through effective crushing and scraping, reduces the loss of crystals in the discharging process, and improves the utilization rate of raw materials; improves product quality, uniform crystal crushing and discharging help to improve the quality of the final product and ensure the consistency of the crystal product.

[0054] The bottom of the evaporation crystallization tank 11 is provided with a clearance groove 118 for installing the discharge trough 22, and the movable range of the push plate 26 never exceeds the bottom edge of the conical protrusion 18. The inlet end of the screw conveyor 21 is docked with the end of the discharge trough 22, and the auger inside the screw conveyor 21 extends to the inside of the discharge trough 22. A limit rod 29 is provided on the side wall of the discharge trough 22, and the end of the auger of the screw conveyor 21 is rotatably installed on the limit rod 29.

[0055] The present invention also provides a discharging method of a continuous discharging device of an ammonium perchlorate evaporation and crystallization equipment, comprising the following steps:

[0056] Evaporation crystallization, heating the evaporation crystallization tank 11 through the temperature control jacket 13, so that the ammonium perchlorate solution evaporates and crystallizes in the evaporation crystallization tank 11, and the stirring paddle 14 continuously stirs during the evaporation crystallization process;

[0057] Crystal scraping, the rotating scraper 113 starts to work, and the scraper 113 is attached to the inside of the evaporation crystallization tank 11 to scrape the crystals;

[0058] Crystal crushing: Under the relative rotation of the stirring blade 14 and the scraper 113, the gear structure cooperates with the rotating rod 111 to drive the rotating member 112 to rotate, so as to crush the crystals attached to the bottom of the evaporation crystallization tank 11;

[0059] Crystal pushing: the scraper 113 rotates to scrape off the crystals attached to the evaporation crystallization tank 11, and then pushes the crystals into the discharge trough 22;

[0060] Continuous discharging: the push plate 26 inside the discharging trough 22 moves back and forth under the action of the return spring 27, pushing the crystals into the screw conveyor 21, and the crystals are continuously discharged through the screw conveyor 21 until all the crystals in the evaporation crystallization tank 11 are discharged.

[0061] The present invention has the following comprehensive effects: temperature-controlled heating, the evaporation crystallization tank 11 of the present invention is heated by an external temperature-controlled jacket 13, and the temperature-controlled jacket 13 can adjust the temperature as needed to adapt to the evaporation crystallization process of the ammonium perchlorate solution. The stirring paddle 14 continuously stirs, and the stirring paddle 14 continuously stirs during the evaporation crystallization process to ensure that the ammonium perchlorate solution is evenly heated and evaporated in the evaporation crystallization tank 11, and prevents local overheating or crystal deposition. The scraper 113 scrapes in multiple directions, and the scraper 113 is designed with a side wall scraper 114, a bottom scraper 115, and a bevel scraper 116, which can fit the inner side surface, the inner bottom surface, and the conical surface of the conical protrusion 18 of the evaporation crystallization tank 11, and realize all-round scraping of the crystals. The crystals are crushed and stirred. The active gear 19 on the stirring paddle 14 and the passive gear 110 on the scraper 113 are meshed and driven to drive the rotating rod 111 and the rotating member 112 to crush the crystals at the inner bottom. At the same time, the rotating circle 16 of the scraper 113 contacts the contact seat 17 to generate vibration, which promotes the stirring and shedding of the crystals. The crystals are continuously pushed and discharged. The scraper 113 scrapes the crystals from the inner wall and bottom of the evaporation crystallization tank 11 and pushes them into the discharge trough 22. The push plate 26 inside the discharge trough 22 moves back and forth under the action of the reset spring 27, and continuously pushes the crystals into the screw conveyor 21. The screw conveyor 21 discharges continuously. The auger of the screw conveyor 21 extends to the inside of the discharge trough 22 to transport the crystals out of the discharge trough 22, thereby realizing continuous discharge. The limit control of the discharge chute 22, the limit rod 29 on the side wall of the discharge chute 22 ensures that the auger end of the screw conveyor 21 is correctly installed to prevent crystals from overflowing or clogging.

[0062] Detailed description of beneficial effects: Improve production efficiency. Through the design of the continuous discharging mechanism 2, continuous discharging of crystals is achieved, avoiding the low efficiency problem of traditional intermittent discharging. Optimize crystal quality. The coordinated work of the stirring paddle 14 and the scraper 113, as well as the design of the crystal crushing mechanism, help to obtain crystal products with uniform particle size and stable quality. Reduce equipment maintenance costs. The design of the scraper 113 makes it difficult for crystals to accumulate on the inner wall and bottom of the evaporation crystallization tank 11, reducing the cleaning and maintenance work of the equipment. Improve operational safety. The automated discharging process reduces manual intervention and reduces operational risks. Energy saving and consumption reduction. The precise temperature control of the temperature control jacket 13 and the continuous stirring of the stirring paddle 14 improve the efficiency of thermal energy utilization and reduce energy consumption. Environmentally friendly. By reducing the residual crystals in the equipment and improving the quality of crystals, the generation of waste is reduced, which is beneficial to environmental protection. Improve equipment stability. The design of components such as the drive motor 23, the rotating shaft 28, the cam 24 and the reset spring 27 ensures the stable operation of the equipment. Strong adaptability. The equipment of the present invention can adjust the discharging speed and crystal quality according to different production needs, and has good adaptability. Improve the service life of the equipment. Reasonable structural design and automated operation reduce the wear of the equipment and extend the service life of the equipment. Easy to monitor and control. The equipment has a high degree of automation and is easy to integrate into the existing production monitoring system to achieve remote monitoring and control.

[0063] The specific implementation of this embodiment is described above, but this embodiment 1 is not limited to the above-mentioned specific implementation. The above-mentioned specific implementation is only illustrative and not restrictive. Ordinary technicians in this field can also make many forms under the guidance of this embodiment, all of which are protected by this embodiment.

Claims

1. A continuous discharging device for ammonium perchlorate evaporation and crystallization equipment, characterized in that: include: Crystallization equipment (1) and continuous discharging mechanism (2); The crystallization device (1) comprises an evaporation crystallization tank (11), wherein a stirring paddle (14) is arranged inside the evaporation crystallization tank (11); the continuous discharging mechanism (2) comprises a rotating scraper (113), wherein the scraper (113) is arranged outside the stirring paddle (14), and the scraper (113) is used to scrape the inner side surface and inner bottom of the evaporation crystallization tank (11); The continuous discharge mechanism (2) comprises a discharge trough (22), the discharge trough (22) being arranged at the bottom of the evaporation crystallization tank (11), the outer side of the discharge trough (22) being connected to a screw conveyor (21), the interior of the discharge trough (22) being provided with a reciprocating push plate (26), the scraper (113) rotating to scrape off crystals attached to the evaporation crystallization tank (11), the scraper (113) pushing the crystals into the discharge trough (22), and the crystals in the discharge trough (22) being continuously discharged through the screw conveyor (21); A driving motor (23) is installed at the bottom of the evaporation crystallization tank (11), and the driving motor (23) drives the scraper (113) to rotate via a rotating shaft (28). The bottom of the paddle rod (12) of the stirring paddle (14) is rotatably connected to the top of the rotating shaft (28) via a rotating bearing; A cam (24) is mounted on the output shaft of the driving motor (23); a movable rod (25) is slidably inserted in the discharge trough (22); a push plate (26) is fixedly connected to the end of the movable rod (25); the push plate (26) is slidably arranged in the discharge trough (22); a return spring (27) for returning the push plate (26) is arranged inside the discharge trough (22); one end of the return spring (27) is connected to the push plate (26); and the other end of the return spring (27) is connected to the inner wall of the discharge trough (22) away from the push plate (26); The inner bottom of the evaporation crystallization tank (11) is provided with a conical protrusion (18); the scraper (113) comprises a side wall scraper (114), a bottom surface scraper (115) and an inclined surface scraper (116); the side wall scraper (114) is attached to the inner side wall of the evaporation crystallization tank (11), the bottom surface scraper (115) is attached to the inner bottom surface of the evaporation crystallization tank (11), and the inclined surface scraper (116) is attached to the conical surface of the conical protrusion (18); The stirring paddle (14) is mounted with a driving gear (19); the inner side surface of the scraping member (113) is provided with a mounting seat (119); a rotating rod (111) is rotatably mounted on the mounting seat (119); a passive gear (110) meshing with the driving gear (19) is mounted on the rotating rod (111); a clearance recess (117) is provided at the bottom of the scraping member (113); a rotating member (112) is connected to the bottom of the rotating rod (111); the rotating member (112) is located in the clearance recess (117); the rotating member (112) is attached to the inner bottom of the evaporation crystallization tank (11); when the stirring paddle (14) and the scraping member (113) rotate relative to each other, the rotating rod (111) drives the rotating member (112) to crush the crystals at the inner bottom of the evaporation crystallization tank (11).

2. A continuous discharging device for ammonium perchlorate evaporation and crystallization equipment according to claim 1, characterized in that: A rotating ring (16) is mounted on the stirring paddle (14), a contact seat (17) is arranged on the inner side surface of the scraper (113), and a plurality of groups of protrusions are arranged on the rotating ring (16). When the rotating ring (16) rotates, the protrusions contact with the contact seat (17) to generate vibration, thereby promoting the scraping operation of the scraper (113) on the inside of the evaporation crystallization tank (11).

3. A continuous discharging device for ammonium perchlorate evaporation and crystallization equipment according to claim 1, characterized in that: The bottom of the evaporation crystallization tank (11) is provided with a clearance groove (118) for installing the discharge trough (22), and the movable range of the push plate (26) never exceeds the bottom edge of the conical protrusion (18).

4. A continuous discharging device for ammonium perchlorate evaporation and crystallization equipment according to claim 1, characterized in that: The inlet end of the screw conveyor (21) is butted against the end of the discharge trough (22); the auger inside the screw conveyor (21) extends into the interior of the discharge trough (22); a limit rod (29) is provided on the side wall of the discharge trough (22); and the end of the auger of the screw conveyor (21) is rotatably mounted on the limit rod (29).

5. A continuous discharging device for ammonium perchlorate evaporation and crystallization equipment according to claim 1, characterized in that: A feed pipe (15) is provided on the top of the evaporation crystallization tank (11), and a temperature control jacket (13) is provided outside the evaporation crystallization tank (11), wherein the temperature control jacket (13) is used to supply heat for evaporation crystallization of the evaporation crystallization tank (11).

6. The discharging method of a continuous discharging device of ammonium perchlorate evaporation and crystallization equipment according to claim 2, characterized in that: The steps include: Evaporation crystallization, heating the evaporation crystallization tank (11) by means of a temperature control jacket (13) so that the ammonium perchlorate solution evaporates and crystallizes in the evaporation crystallization tank (11), and the stirring paddle (14) continuously stirs during the evaporation crystallization process; The crystals are scraped, and the rotating scraper (113) starts to work, and the scraper (113) is attached to the inside of the evaporation crystallization tank (11) to scrape the crystals; The crystals are crushed, and under the relative rotation of the stirring blade (14) and the scraper (113), the rotating member (112) is driven to rotate by the gear structure in cooperation with the rotating rod (111), so as to crush the crystals attached to the bottom of the evaporation crystallization tank (11); Crystal pushing, the scraper (113) rotates to scrape off the crystals attached to the evaporation crystallization tank (11), and then pushes the crystals into the discharge trough (22); The material is continuously discharged. The push plate (26) inside the discharge chute (22) moves back and forth under the action of the return spring (27), pushing the crystals into the screw conveyor (21). The crystals are continuously discharged through the screw conveyor (21) until all the crystals in the evaporation crystallization tank (11) are discharged.

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