Double-layer crystallizer equipment

Abstract

The invention relates to the field of crystallizer equipment, and discloses double-layer crystallizer equipment which comprises a support, treatment barrels are fixedly connected to the left side and the right side of the interior of the support, and multiple layers of stirring mechanisms are arranged in the treatment barrels; the multi-layer stirring mechanism comprises a supporting plate, a two-way motor, two sleeves and four fixing plates, the left side and the right side of the supporting plate are fixedly connected to the inner side walls of the two treatment barrels, and the bottom wall of the two-way motor is fixedly connected to the top wall of the supporting plate. According to the invention, through the arrangement of a multi-layer stirring mechanism, the problems that crystals have relatively large difference in granularity and form, are easy to accumulate and block and influence normal operation of equipment can be solved, and two first rotating rods rotate and penetrate through the inner space of the treatment barrel, so that the crystallization time is effectively shortened, the production efficiency is improved, and the production cost is reduced. The contact opportunity between the medicament and the crystal is increased, so that the formation of a crystal nucleus is accelerated.

Description

Technical Field

[0001] The invention relates to the field of crystallizer equipment, in particular to a double-layer crystallizer equipment. Background Art

[0002] Crystallizer equipment is an industrial equipment specially used for the crystallization process of substances. Its main function is to change the physical and chemical conditions of the solution so that the solute in the solution precipitates from the solution in the form of crystals. Crystallization is an important separation and purification technology. Crystallizer equipment can accurately control the crystallization process to obtain high-quality crystal products that meet specific requirements.

[0003] In the early stage of crystallization, the solute needs to be evenly dispersed in the solvent to form enough crystal nuclei. Since the solution is not fully stirred, the solute concentration around the crystal will decrease rapidly, while the solute concentration in the area far away from the crystal is still high, resulting in inconsistent crystal growth rate. Crystals near the container wall or bottom may grow slowly due to insufficient solute supply, while crystals in the center of the solution may grow too fast due to relative enrichment of solutes, which eventually leads to large differences in crystal size and morphology, reducing production efficiency, increasing production costs and equipment occupancy time, and easily accumulating and clogging, affecting the normal operation of the equipment. During the crystallization process, the solute will precipitate and adhere to the container wall when the temperature changes or the concentration reaches an oversaturated state. If the stirring mechanism does not have a quick-release scraping mechanism, these solutes will continue to accumulate on the wall to form scaling as the crystallization proceeds. The scaling layer will become an obstacle to heat transfer, reduce heating or cooling efficiency, cause scale to remain in the equipment for a long time, affect the quality of the next crystallization process, and increase equipment maintenance costs and downtime. After crystallization is completed, the crystals and mother liquor need to be discharged from the double-layer crystallizer. If there is no screw conveyor, some viscous crystals or materials containing more solid particles are easy to accumulate at the discharge port, causing blockage, which requires a lot of time and manpower to clean up, seriously affecting production efficiency. Summary of the invention

[0004] The main purpose of the present invention is to provide a double-layer crystallizer equipment, which can effectively solve the problems that cause large differences in crystal size and morphology, reduce production efficiency, increase production costs and equipment occupancy time, and are prone to accumulation and clogging, affecting the normal operation of the equipment and causing dirt to remain in the equipment for a long time, affecting the quality of the next crystallization process and increasing equipment maintenance costs and downtime.

[0005] To achieve the above object, the present invention provides the following technical solution: a double-layer crystallizer device, comprising a bracket, wherein both left and right sides of the inside of the bracket are fixedly connected to a processing barrel, and a multi-layer stirring mechanism is arranged inside the processing barrel;

[0006] The multi-layer stirring mechanism includes: a support plate, a bidirectional motor, two sleeves and four fixed plates, the left and right sides of the support plate are fixedly connected to the inner walls of the two processing barrels, the bottom wall of the bidirectional motor is fixedly connected to the top wall of the support plate, the left and right output ends of the bidirectional motor are fixedly connected to the first rotating rod, the two first rotating rods are rotatably connected to the inside of the processing barrel, the other sides of the two first rotating rods are rotatably connected to the inside of the sleeve, the other sides of the two sleeves are fixedly connected to the left and right inner walls of the two processing barrels, the middle outer parts of the two first rotating rods are fixedly connected to the support ring, the left and right sides of the four fixed plates are fixedly connected to the front and rear sides of the two support rings, and the inner walls of the four fixed plates are fixedly connected to stirring blocks.

[0007] Furthermore, a connecting ring is fixedly connected to the outer side of the middle part of the two first rotating rods, and a stirring rod is fixedly connected to the outer side of the eight connecting rings. The multiple stirring rods and the multiple stirring blocks are cross-arranged, and a quick-release scraping mechanism is arranged inside the two processing barrels.

[0008] Furthermore, the quick-release scraper mechanism includes: eight support rods, eight limit blocks and eight slot blocks, the eight support rods are fixedly connected to the left and right ends and the front and rear sides of the two first rotating rods, the other ends of each two support rods are fixedly connected to a connecting plate, the outer ends of the two connecting plates are fixedly connected to a guide plate, the interior of each two guide plates is slidably connected to a slider, the outer walls of each two sliders are fixedly connected to a scraper, and the eight scrapers are arranged corresponding to the inner walls of the two processing barrels.

[0009] Furthermore, the eight slot blocks are fixedly connected to the right sides of the two right sliders inside the left processing barrel and the left sides of the two left sliders inside the right processing barrel, the right side walls of the four left sliders and the left side walls of the four right sliders are fixedly connected to the limiting blocks, the outer side walls of the eight limiting blocks are provided with placement grooves, each of the limiting blocks is slidably connected to buttons on the upper and lower sides, and the left and right side walls of every two buttons are fixedly connected to connecting blocks.

[0010] Furthermore, a spring is fixedly connected to the bottom of each two connecting blocks, the bottom end of each two springs is fixedly connected to a hole slot of a limit block, the other side of each two buttons is fixedly connected to a conical clamping block, each of the clamping slot blocks is arranged inside the placement slot, and the upper and lower hole slots of each of the clamping slot blocks are arranged correspondingly to the two conical clamping blocks.

[0011] Furthermore, the right side of the left processing barrel and the left bottom of the right processing barrel are both connected through a slag discharge square pipe, the other sides of the two slag discharge square pipes are connected to a guide plate, the rear side wall of the guide plate is connected to a slag discharge pipe, the tops of the two processing barrels are both connected through a feed pipe, the bottom walls of the two processing barrels are both fixedly connected to a filter plate, and the left top of the bracket and the front side wall of the left processing barrel are fixedly connected to a control panel.

[0012] Furthermore, a guide box is fixedly connected to the bottom of the two processing barrels, the top of the guide box is arranged on the outside of the two filter plates, the bottom of the guide box is fixedly connected to a device box, the right side wall of the device box is threadedly connected to a discharge pipe, the right end of the discharge pipe is threadedly connected to a first support ring, and the inside of the first support ring is fixedly connected to a first fixer.

[0013] Furthermore, a protection box is fixedly connected to the left side wall of the device box, a second support ring is threadedly connected to the left side wall of the device box, a second fixer is fixedly connected inside the second support ring, a drive motor is arranged inside the protection box, a second rotating rod is fixedly connected to the output end of the drive motor, and the left and right ends of the second rotating rod are rotatably connected to the inside of the second fixer and the first fixer.

[0014] Furthermore, a spiral blade is fixedly connected to the outer side of the second rotating rod, and the spiral blade is arranged inside the device box and the discharge pipe. The bottom of the front side wall of the device box is provided with a sieve hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention can solve the problem that the crystals have large differences in particle size and morphology, reduce production efficiency, increase production costs and equipment occupancy time, and are prone to accumulation and clogging, which affects the normal operation of the equipment. The two first rotating rods rotate through the internal space of the processing barrel, and one end is firmly embedded in the sleeve to achieve flexible rotation support, ensuring that the rotation trajectory is stable and the force is balanced. During the rotation process, the support ring fixed on the outer side of the middle part moves synchronously in a circular motion, and the four fixed plates firmly fixed on the front and back sides carry the stirring block deep into the solution. The shape of the stirring block is carefully designed according to the barrel body and the crystallization process, and is mostly streamlined or specifically bent. At the same time, the connecting ring and the stirring rod combination are also rotating at high speed. The stirring rods are staggered and arranged crosswise with the stirring blocks to weave a tight stirring network, thereby effectively shortening the crystallization time, improving production efficiency, and increasing the contact opportunities between the reagent and the crystal, thereby accelerating the formation of the crystal nucleus.

[0017] 2. The quick-release scraper mechanism can solve the problem of long-term residual dirt in the equipment, affecting the quality of the next crystallization process, and increasing the maintenance cost and downtime of the equipment. The conical block on the other side of the button is disengaged from the corresponding hole of the card slot block, and the radial locking state of the scraper and the processing barrel is instantly released. At this time, gently pull the scraper outward, and the slider slides out smoothly along the guide plate. Since the corresponding components of the eight scrapers have a unified structure and coordinated operation, the entire scraper mechanism can be separated from the processing barrel within seconds and easily taken out of the equipment, which is convenient for detailed cleaning and maintenance of the scraper, slider and guide rail, and removal of impurities in the gaps, thereby effectively improving the cleanliness of the equipment surface, reducing the risk of corrosion, reducing the maintenance and replacement costs of the equipment, and improving the reliability of the production process.

[0018] 3. The device box, the first support ring, the drive motor, the spiral blades, the screening holes and the second fixture are provided to solve the problem that the blockage requires a lot of time and manpower to clean, which seriously affects the production efficiency. The spiral blades tightly fixed on the outside rotate synchronously in the device box and the discharge pipe space, and the spiral blades exert force on the crystal materials that have been screened by the filter plate and temporarily stored in the upper part of the device box. As the blades continue to rotate, the crystals are steadily pushed along the spiral trajectory and output from the device box through the discharge pipe. During the process, the motor speed can be accurately controlled by the control panel, so as to finely adjust the discharge speed to match different production rhythms and packaging and subsequent processing requirements, thereby effectively ensuring that the material passes through the discharge pipe stably, making the discharge process continuous and uninterrupted, improving the overall production efficiency, and being able to transport the crystal products to the next production link faster, thereby shortening a single production cycle.

[0019] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional structural diagram of a double-layer crystallization machine device proposed by the present invention;

[0021] Figure 2 A rear structural diagram of a double-layer crystallization machine device proposed by the present invention;

[0022] Figure 3 This is a cross-sectional structural diagram of the interior of a processing barrel of a double-layer crystallizer device proposed by the present invention;

[0023] Figure 4 A structural diagram of a stirring rod of a double-layer crystallizer device proposed by the present invention;

[0024] Figure 5 A structural diagram of a filter plate of a double-layer crystallizer device proposed by the present invention;

[0025] Figure 6A structural diagram of a quick-release scraper mechanism for a double-layer crystallizer device proposed by the present invention;

[0026] Figure 7 A schematic diagram of a slider of a double-layer crystallization machine device proposed by the present invention;

[0027] Figure 8 A structural diagram of a card slot block of a double-layer crystallization machine device proposed by the present invention;

[0028] Fig. 9 This is a cross-sectional structural diagram of the internal limit block of a double-layer crystallization machine device proposed by the present invention;

[0029] Fig.10 A structural diagram of a slag discharge pipe of a double-layer crystallizer device proposed by the present invention;

[0030] Fig.11 A structural diagram of a device box of a double-layer crystallization machine device proposed by the present invention;

[0031] Fig.12 A structural diagram of a discharge pipe of a double-layer crystallizer device proposed by the present invention;

[0032] Fig.13 This is a structural diagram of the spiral blades of a double-layer crystallizer device proposed by the present invention.

[0033] Legend:

[0034] 1. Bracket; 2. Processing barrel; 3. Multi-layer stirring mechanism; 301. Support plate; 302. Bidirectional motor; 303. First rotating rod; 304. Sleeve; 305. Support ring; 306. Fixed plate; 307. Stirring block; 308. Connecting ring; 309. Stirring rod; 4. Quick-release scraping mechanism; 401. Support rod; 402. Joint plate; 403. Guide plate; 404. Sliding block; 405. Scraper; 406. Slot block; 407. Limit block; 408. Place Slot; 409, button; 410, connecting block; 411, spring; 412, conical clamp; 5, slag discharge square pipe; 6, guide plate; 7, slag discharge pipe; 8, filter plate; 9, control panel; 10, guide box; 11, device box; 12, protection box; 13, discharge pipe; 14, first support ring; 15, first fixer; 16, drive motor; 17, second rotating rod; 18, spiral blade; 19, sieve hole; 20, second support ring; 21, second fixer. DETAILED DESCRIPTION

[0035] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0036] like Figure 1 - Figure 4 As shown: a double-layer crystallization machine device, including a bracket 1, the left and right sides of the inside of the bracket 1 are fixedly connected with processing barrels 2, the crystals and the solution are processed by the processing barrels 2, and the inside of the processing barrels 2 is provided with a multi-layer stirring mechanism 3;

[0037] The multi-layer stirring mechanism 3 includes: a support plate 301, a bidirectional motor 302, two sleeves 304, and four fixed plates 306. The left and right sides of the support plate 301 are fixedly connected to the inner walls of the two processing barrels 2, and the bottom wall of the bidirectional motor 302 is fixedly connected to the top wall of the support plate 301. The support plate 301 is set to support the bottom wall of the top bidirectional motor 302 and fix it in the middle of the two processing barrels 2, so that the bidirectional motor 302 can stably drive the device inside the processing barrel 2 to rotate.

[0038] The left and right output ends of the bidirectional motor 302 are fixedly connected to the first rotating rod 303, and the two first rotating rods 303 are rotatably connected to the inside of the processing barrel 2. The other sides of the two first rotating rods 303 are rotatably connected to the inside of the sleeve 304. The other sides of the two sleeves 304 are fixedly connected to the left and right inner walls of the two processing barrels 2. By driving the two first rotating rods 303 to rotate, they penetrate the internal space of the processing barrel 2, and one end is firmly embedded in the sleeve 304 to achieve flexible rotation support, ensuring a stable rotation trajectory and balanced force.

[0039] A support ring 305 is fixedly connected to the outer middle part of the two first rotating rods 303, and the left and right sides of the four fixed plates 306 are fixedly connected to the front and rear sides of the two support rings 305. The inner walls of the four fixed plates 306 are fixedly connected with stirring blocks 307. The middle outer parts of the two first rotating rods 303 are fixedly connected to connecting rings 308, and the outer sides of the eight connecting rings 308 are fixedly connected to stirring rods 309. The multiple stirring rods 309 and the multiple stirring blocks 307 are cross-arranged. The interiors of the two processing barrels 2 are each provided with a quick-release scraping mechanism 4. During the rotation process, the support ring 305 fixed on the outer middle part moves synchronously in a circle, and the four fixed plates 306 firmly fixed on the front and rear sides carry the stirring blocks 307 deep into the solution. The shape of the stirring blocks 307 is carefully designed according to the barrel body and the crystallization process, and is mostly streamlined or specifically bent, aiming to maximize the cutting and disturbance of the solution. At the same time, the combination of the connecting ring 308 and the stirring rod 309 also rotates at a high speed. The stirring rods 309 are arranged in a staggered manner and cross-arranged with the stirring blocks 307 to weave into a tight stirring network.

[0040] like Figure 3 - Fig. 9As shown, the quick-release wall scraping mechanism 4 includes: eight support rods 401, eight limit blocks 407 and eight slot blocks 406. The eight support rods 401 are fixedly connected to the front and back sides of the left and right ends of the two first rotating rods 303. By fixing the support rods 401 on the left and right ends of the first rotating rods 303, when the first rotating rods 303 rotate, the support rods 401 will rotate synchronously.

[0041] The other ends of each of the two support rods 401 are fixedly connected to a joint plate 402, the outer ends of the two joint plates 402 are fixedly connected to a guide plate 403, the interior of each of the two guide plates 403 is slidably connected to a slider 404, the outer side walls of each of the two sliders 404 are fixedly connected to a scraper 405, and the eight scrapers 405 are arranged correspondingly to the inner walls of the two processing barrels 2, and the joint plates 402 connected thereto are driven to synchronously move in a circular motion through the eight support rods 401. The guide plate 403 at the outer end of the joint plate 402 is fixed to the joint plate 402 by sliding the slider 404 inside the guide plate 403 during installation, so as to fix the scraper 405 on the joint plate 402 and drive the scraper 405 to rotate.

[0042] The eight slot blocks 406 are all fixedly connected to the right sides of the two right sliders 404 inside the left processing barrel 2 and the left sides of the two left sliders 404 inside the right processing barrel 2. By fixing the slot blocks 406 on the right slider 404 and the left side, the slider 404 and the scraper 405 are fixed on the guide plate 403 to correspond to the placement groove 408 inside the limit block 407.

[0043] The right side wall of the four left sliders 404 and the left side wall of the four right sliders 404 are fixedly connected to the limit blocks 407. The outer side walls of the eight limit blocks 407 are provided with placement grooves 408. The slot blocks 406 are placed through the provided placement grooves 408 to achieve the connection and fixing effects. The upper and lower sides of each limit block 407 are slidably connected to buttons 409, and the left and right side walls of every two buttons 409 are fixedly connected to connecting blocks 410.

[0044] like Figure 8 - Fig. 9As shown, the bottom of each two connecting blocks 410 is fixedly connected with a spring 411, and the bottom end of each two springs 411 is fixedly connected to a hole groove of a limit block 407, and the other side of each two buttons 409 is fixedly connected with a conical clamping block 412, and each slot block 406 is arranged inside the placement groove 408, and the upper and lower holes of each slot block 406 are correspondingly arranged with the two conical clamping blocks 412. When disassembling, the operator manually presses the button 409 on the limit block 407, and the button 409 is forced to shrink inward, driving the connected connecting blocks 410 to sink, compressing the bottom spring 411 to store energy, and the conical clamping block 412 fixed on the other side of the button 409 is disengaged from the corresponding hole groove of the slot block 406, instantly releasing the radial locking state of the scraper 405 and the processing barrel 2. At this time, the scraper 405 is gently pulled outward, and the slider 404 slides out smoothly along the guide plate 403, so that the device can be disassembled for easy cleaning and replacement.

[0045] like Figure 1 - Fig.10 As shown, the right side of the left processing barrel 2 and the left bottom of the right processing barrel 2 are both penetrated by a slag discharge square pipe 5, the other sides of the two slag discharge square pipes 5 are connected to a guide plate 6, and the rear side wall of the guide plate 6 is connected to a slag discharge pipe 7. During the processing, solid materials such as impurities that are not fully crystallized need to be cleaned and discharged urgently, and are connected to the guide plate 6 through the slag discharge square pipe 5, and are guided by the guide plate 6 to be discharged from the inside of the slag discharge pipe 7.

[0046] The tops of the two processing barrels 2 are connected through 22, and the solvent is put into the processing barrel 2 for processing through the set 22. The bottom walls of the two processing barrels 2 are fixedly connected with filter plates 8, and the processed crystals are preliminarily filtered through the filter plates 8 to filter out larger crystals and impurities, and these impurities are discharged through the slag discharge square pipe 5. The left top of the bracket 1 and the front side wall of the left processing barrel 2 are fixedly connected with a control panel 9, and the entire device is controlled through the set control panel 9.

[0047] like Fig.11 - Fig.13 As shown, a guide box 10 is fixedly connected to the bottom of the two processing barrels 2, the top of the guide box 10 is arranged on the outside of the two filter plates 8, and the bottom of the guide box 10 is fixedly connected to the device box 11. Through the set guide box 10, the crystals screened and processed from the filter plates 8 can be accurately entered into the interior of the device box 11.

[0048] The right side wall of the device box 11 is threadedly connected with a discharge pipe 13, the right end of the discharge pipe 13 is threadedly connected with a first support ring 14, and the interior of the first support ring 14 is fixedly connected with a first fixer 15. The crystals are discharged through the set discharge pipe 13, and the right end of the discharge pipe 13 is supported and fixed by the first support ring 14 and the first fixer 15 to prevent the crystals from being discharged from the right end of the discharge pipe 13, and the internal device is supported by the first fixer 15.

[0049] The left side wall of the device box 11 is fixedly connected with the protection box 12, the left side wall of the device box 11 is threadedly connected with the second support ring 20, the interior of the second support ring 20 is fixedly connected with the second fixture 21, the interior of the protection box 12 is provided with a driving motor 16, the output end of the driving motor 16 is fixedly connected with the second rotating rod 17, the left and right ends of the second rotating rod 17 are rotatably connected to the interior of the second fixture 21 and the first fixture 15, the outer side of the second rotating rod 17 is fixedly connected with a spiral blade 18, the spiral blade 18 is arranged inside the device box 11 and the discharge pipe 13, the bottom of the front side wall of the device box 11 is provided with a sieve hole 19, and the control panel 9 commands are received through the driving motor 16 After starting, its output end drives the second rotating rod 17 to rotate at high speed, and the spiral blade 18 tightly fixed on the outside rotates synchronously in the space between the device box 11 and the discharge pipe 13. The spiral blade 18 applies force to the crystal material that has been screened by the filter plate 8 and temporarily stored in the upper part of the device box 11. As the blade continues to rotate, the crystal is steadily pushed along the spiral trajectory and is output from the device box 11 through the discharge pipe 13. During the process, the control panel 9 accurately controls the motor speed, thereby finely adjusting the discharge speed to match different production rhythms and packaging and subsequent processing requirements. The sieving holes 19 opened at the bottom of the front side wall of the device box 11 intercept fine unqualified crystals or impurities that may be mixed in and escaped in the previous link.

[0050] It should be noted that the present invention is a double-layer crystallization machine device. First, the bidirectional motor 302, the control panel 9 and the drive motor 16 are connected to an external power source to supply power to the device. In addition, when the solvent is put into the interior of the processing barrel 2 through 22, the internal solvent of the processing barrel 2 is processed by an external heating device and a cooling device.

[0051] When the equipment is started, the bidirectional motor 302 mounted on the support plate 301 is powered on first, and with its left and right output ends, it synchronously drives the two first rotating rods 303 to rotate, penetrate the internal space of the processing barrel 2, and one end is firmly embedded in the sleeve 304 to achieve flexible rotation support, ensuring a stable rotation trajectory and balanced force. During the rotation process, the support ring 305 fixed on the outside of the middle part moves in a synchronous circular motion, and the four fixed plates 306 firmly fixed on the front and back sides carry the stirring block 307 deep into the solution. The shape of the stirring block 307 is carefully designed according to the barrel body and the crystallization process, and is mostly streamlined or specifically bent, aiming to maximize the cutting and disturbance of the solution. At the same time, the combination of the connecting ring 308 and the stirring rod 309 is also rotating at a high speed. The stirring rods 309 are staggered and arranged crosswise with the stirring blocks 307 to weave a tight stirring network. The solution is quickly rolled and convected, and the solute is accelerated to be evenly dispersed in the solute dissolution stage at the beginning of crystallization, eliminating the "dead corner" of concentration differences, and achieving high efficiency and consistency in the construction of the supersaturated state.

[0052] When the equipment is running, the bidirectional motor 302 of the multi-layer stirring mechanism 3 drives the first rotating rod 303 to rotate, and this rotation is transmitted to the support rods 401 fixed on the front and rear sides of the two ends, and the eight support rods 401 drive the joint plate 402 connected thereto to perform synchronous circular motion. The guide plate 403 at the outer end of the joint plate 402 is connected to the inside of the guide plate 403 by sliding the slider 404 during installation to fix the scraper 405 on the guide plate 402 and drive the scraper 405 to rotate. During the crystallization process, the solute in the solution precipitates and adheres to the barrel wall with the fluctuation of temperature and concentration. The scraper 405 "roots out" the scaling layer with moderate pressure and precise angle by means of stable circular sliding. Regardless of whether the solute is tiny crystals in the early stage of crystallization or thick deposits in the later stage, the scraper 405 can clean them efficiently by continuous and regular operation, maintain smooth heat conduction on the barrel wall, ensure "unimpeded exchange" of heat between the heating or cooling medium and the solution, make the crystallization temperature accurately controllable, and heat or cool the solution in the treatment barrel 2 evenly, creating a uniform environment for crystal growth.

[0053] When the crystallization operation is completed or the equipment needs periodic maintenance and cleaning, the unique design of the quick-release scraper mechanism 4 highlights the convenience advantage. To remove the scraper 405 component, the operator manually presses the button 409 on the limit block 407, and the button 409 is forced to retract, driving the connected connection block 410 to sink, compressing the bottom spring 411 to store energy. The conical block 412 fixed on the other side of the button 409 is disengaged from the corresponding hole of the slot block 406, instantly releasing the radial locking state of the scraper 405 and the processing barrel 2. At this time, the scraper 405 is gently pulled outward, and the slider 404 smoothly escapes along the guide plate 403. Because the corresponding components of the eight scrapers 405 have a unified structure and coordinated operation, the entire set of scraper mechanisms can be separated from the processing barrel 2 within a few seconds, and can be conveniently taken out of the equipment, which is convenient for the scraper 405, the slider 404 and the guide rail to be carefully cleaned and repaired, the gap impurities are removed, and the wear condition is inspected, which greatly reduces the time consumption of equipment maintenance and improves the turnover efficiency of equipment.

[0054] When the equipment maintenance is completed, the scraper mechanism is cleaned or the parts are replaced, the reverse operation can be performed to achieve fast and stable installation, align the slider 404 with the entrance of the guide plate 403 and insert it, push the scraper 405 to the predetermined position on the inner wall of the treatment barrel 2, and the slot block 406 slides into the placement slot 408 of the limit block 407 during the process. Release the button 409, the spring 411 releases energy and rebounds, pushing the connection block 410 to move upward, and the conical block 412 is accurately inserted into the upper and lower holes of the slot block 406, and the mechanical locking is completed with a "click".

[0055] At the end of the crystallization operation, the solid materials such as the residues accumulated at the bottom of the processing barrel 2 and the impurities that are not fully crystallized need to be cleaned and discharged urgently to maintain the cleanliness of the equipment and ensure the quality of subsequent crystallization batches. At this time, the slag discharge square pipe 5 on the right side of the left processing barrel 2 and the left side of the right processing barrel 2, under the help of its own gravity and the possible slight stirring residual wave, slides into the slag discharge square pipe 5. The two slag discharge square pipes 5 gather the slag and guide it to the connected guide plate 6. The guide plate 6, with its inclined structure, allows it to flow into the slag discharge pipe 7 in an orderly manner, and is finally completely discharged from the equipment system. The whole process is smooth and autonomous, without the need for additional complex power intervention, and efficiently cleans the impurities accumulated at the bottom of the barrel.

[0056] At the end of the crystallization process and the stage of material sedimentation, the mother liquor carries fine impurities through the pores of the filter plate to achieve preliminary liquid-solid separation. Larger crystal particles and aggregates are unable to pass through the mesh holes and are retained on the filter plate 8, achieving preliminary purification and screening to ensure that the crystal materials entering the next link basically meet the lower limit of particle size requirements. After the drive motor 16 receives the command from the control panel 9 and starts, its output end drives the second rotating rod 17 to rotate at high speed, and the spiral blades 18 tightly fixed on the outside rotate synchronously in the space between the device box 11 and the discharge pipe 13. The spiral blades 18 exert force on the crystal materials that have been screened by the filter plate 8 and temporarily stored in the upper part of the device box 11. The blades rotate continuously, and the crystals are pushed steadily along the spiral trajectory and discharged from the device box 11 through the discharge pipe 13. During the process, the motor speed can be accurately controlled by the control panel 9, so as to finely adjust the discharge speed to match different production rhythms and packaging and subsequent processing requirements. The screening holes 19 opened at the bottom of the front side wall of the device box 11 can intercept tiny unqualified crystals or impurities that may be mixed in and escaped in the previous link, so as to ensure that the purity and particle size of the final crystal product meet the standards. The whole system relies on the close cooperation of various components to achieve efficient and precise operation in the whole process of slag cleaning, crystal screening and discharge, which meets the high-quality crystal production requirements of the double-layer crystallizer.

[0057] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A double-layer crystallization machine, comprising a support (1), characterized in that: The left and right sides of the interior of the bracket (1) are fixedly connected to a processing barrel (2), and a multi-layer stirring mechanism (3) is arranged inside the processing barrel (2); The multi-layer stirring mechanism (3) comprises: a support plate (301), a bidirectional motor (302), two sleeves (304) and four fixed plates (306); the left and right sides of the support plate (301) are fixedly connected to the inner side walls of the two processing barrels (2); the bottom wall of the bidirectional motor (302) is fixedly connected to the top wall of the support plate (301); the left and right output ends of the bidirectional motor (302) are both fixedly connected to the first rotating rod (303); the two first rotating rods (303) are both rotatably connected to the inner side walls of the two processing barrels (2); Internally, the other sides of the two first rotating rods (303) are rotatably connected to the inside of the sleeve (304), and the other sides of the two sleeves (304) are fixedly connected to the inner left and right walls of the two processing barrels (2). The middle outer sides of the two first rotating rods (303) are fixedly connected to a support ring (305), and the left and right sides of the four fixed plates (306) are fixedly connected to the front and rear sides of the two support rings (305), and the inner walls of the four fixed plates (306) are fixedly connected to a stirring block (307).

2. A double-layer crystallization machine according to claim 1, characterized in that: The middle outer sides of the two first rotating rods (303) are fixedly connected with connecting rings (308), the outer sides of the eight connecting rings (308) are fixedly connected with stirring rods (309), the plurality of stirring rods (309) and the plurality of stirring blocks (307) are cross-arranged, and the interiors of the two processing barrels (2) are both provided with quick-release wall scraping mechanisms (4).

3. A double-layer crystallization machine according to claim 2, characterized in that: The quick-release scraping wall mechanism (4) comprises: eight support rods (401), eight limit blocks (407) and eight slot blocks (406); the eight support rods (401) are fixedly connected to the left and right ends and the front and rear sides of the two first rotating rods (303); the other ends of each of the two support rods (401) are fixedly connected to a joint plate (402); the outer ends of the two joint plates (402) are fixedly connected to a guide plate (403); the interior of each of the two guide plates (403) is slidably connected to a slider (404); the outer side walls of each of the two sliders (404) are fixedly connected to a scraper (405); the eight scrapers (405) are arranged corresponding to the inner walls of the two processing barrels (2).

4. A double-layer crystallization machine according to claim 3, characterized in that: The eight slot blocks (406) are all fixedly connected to the right side of the two right sliders (404) inside the left processing barrel (2) and the left side of the two left sliders (404) inside the right processing barrel (2); the right side walls of the four left sliders (404) and the left side walls of the four right sliders (404) are all fixedly connected to the limiting blocks (407); the outer side walls of the eight limiting blocks (407) are all provided with placement grooves (408); the upper and lower sides of each limiting block (407) are slidably connected to buttons (409); and the left and right side walls of every two buttons (409) are fixedly connected to connection blocks (410).

5. A double-layer crystallization machine according to claim 4, characterized in that: The bottoms of each two connecting blocks (410) are fixedly connected with a spring (411), the bottom ends of each two springs (411) are fixedly connected with a hole slot of a limit block (407), the other sides of each two buttons (409) are fixedly connected with a conical clamping block (412), each of the clamping slot blocks (406) is arranged inside the placement slot (408), and the upper and lower hole slots of each of the clamping slot blocks (406) are arranged correspondingly to the two conical clamping blocks (412).

6. A double-layer crystallization machine according to claim 1, characterized in that: The right side of the left processing barrel (2) and the left bottom of the right processing barrel (2) are both connected through a slag discharge square pipe (5); the other sides of the two slag removal square pipes (5) are connected to a guide plate (6); the rear side wall of the guide plate (6) is connected to a slag discharge pipe (7); the tops of the two processing barrels (2) are connected through a feed pipe (22); the bottom walls of the two processing barrels (2) are fixedly connected to a filter plate (8); the left top of the bracket (1) and the front side wall of the left processing barrel (2) are fixedly connected to a control panel (9).

7. A double-layer crystallization machine according to claim 6, characterized in that: A guide box (10) is fixedly connected to the bottom of the two processing barrels (2), the top of the guide box (10) is arranged on the outside of the two filter plates (8), the bottom of the guide box (10) is fixedly connected to a device box (11), the right side wall of the device box (11) is threadedly connected to a discharge pipe (13), the right end of the discharge pipe (13) is threadedly connected to a first support ring (14), and the inside of the first support ring (14) is fixedly connected to a first fixer (15).

8. A double-layer crystallization machine according to claim 7, characterized in that: The left side wall of the device box (11) is fixedly connected to a protection box (12), the left side wall of the device box (11) is threadedly connected to a second support ring (20), the interior of the second support ring (20) is fixedly connected to a second fixer (21), a driving motor (16) is arranged inside the protection box (12), the output end of the driving motor (16) is fixedly connected to a second rotating rod (17), and the left and right ends of the second rotating rod (17) are rotatably connected to the interior of the second fixer (21) and the first fixer (15).

9. A double-layer crystallization machine according to claim 8, characterized in that: The outer side of the second rotating rod (17) is fixedly connected with a spiral blade (18), and the spiral blade (18) is arranged inside the device box (11) and the discharge pipe (13). The bottom of the front side wall of the device box (11) is provided with a sieve hole (19).

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