A crystallization device for producing solid sodium cyanide

Abstract

The invention relates to the technical field of crystallization equipment, and discloses a crystallization equipment for producing solid sodium cyanide, comprising a crystallization kettle, wherein the crystallization kettle comprises a kettle body and a kettle cover, wherein the kettle cover is provided with a collecting unit for collecting crystals, wherein the collecting unit comprises a stirring component rotatably arranged on the kettle cover for stirring a solution, wherein the kettle cover is provided with a driving component for driving the stirring component, wherein the kettle cover is provided with a scraping component driven by the stirring component to reciprocate up and down for scraping the crystals, wherein a discharging bin is provided on one side of the kettle body, wherein the discharging bin is provided with a discharging component for transferring the crystals out of the discharging bin, wherein the invention drives the stirring component to rotate by the driving component, wherein the stirring component stirs the solution, thereby increasing the cooling speed of the solution, wherein the stirring component drives the scraping component to reciprocate up and down while rotating, thereby scraping the crystals precipitated on the inner wall of the kettle body, thereby facilitating the recovery of the crystals and increasing the yield of solid sodium cyanide.

Description

Technical Field

[0001] The invention relates to the technical field of crystallization equipment, in particular to a crystallization equipment for producing solid sodium cyanide. Background Art

[0002] The production of solid sodium cyanide involves multiple steps, among which the purification and recovery of sodium cyanide from the sodium cyanide solution with the help of crystallization equipment is one of the key links.

[0003] In the existing production method of solid sodium cyanide, a cooling crystallization method is usually adopted in consideration of economy and process control, and the crystallization equipment used for the production of solid sodium cyanide is usually composed of a reactor and a cooling component arranged on the reactor. When in use, a sodium cyanide solution is added into the reactor and the cooling component is started, the cooling component cools the sodium cyanide solution, and the stirring component arranged on the reactor stirs the sodium cyanide solution to improve the cooling efficiency, thereby reducing the solubility of sodium cyanide and precipitating it from the solution. However, the existing crystallization equipment used for the production of solid sodium cyanide usually only has the functions of cooling and stirring the sodium cyanide solution, and in the cooling process, the precipitated crystals are easy to adhere to the inner wall of the reactor, thereby resulting in the inability to recover the crystals adhered to the inner wall of the reactor after the crystallization is completed, thereby reducing the yield of solid sodium cyanide. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a crystallization device for the production of solid sodium cyanide.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a crystallization device for producing solid sodium cyanide, comprising a crystallization kettle, the crystallization kettle comprising a kettle body and a kettle cover, the kettle cover is provided with a collecting unit for collecting crystals, the collecting unit comprises a stirring component rotatably arranged on the kettle cover to stir the solution, the kettle cover is provided with a driving component for driving the stirring component, the kettle cover is provided with a scraping component driven by the stirring component to reciprocate up and down to scrape the crystals, the stirring component comprises a rotating shaft, the lower end of the rotating shaft is provided with a stirring rod extending into the kettle body, the driving component comprises a driving bracket arranged on the kettle cover, the driving bracket The upper rotation is provided with a driving pulley and a matching pulley that cooperates with the rotating shaft through a spline, a transmission belt is provided between the driving pulley and the matching pulley, a driving screw is provided at the lower end of the driving pulley, a reciprocating screw sleeve is connected to the driving screw through a thread, a matching sliding arm is rotatably provided on the reciprocating screw sleeve, a rotating sliding sleeve rotatably connected to the driving bracket is slidably sleeved on the matching sliding arm, a driving gear is provided at the end of the rotating sleeve away from the matching sliding arm, a sliding jacket rotatably connected to the rotating shaft is provided on the driving bracket, a matching rack meshing with the driving gear is provided at one end of the sliding jacket, a discharging bin is connected to one side of the kettle body, and a discharging component for transferring the crystals out of the discharging bin is provided in the discharging bin.

[0006] As an improvement, the scraper assembly includes a scraper bracket arranged on the kettle cover, a scraper slider is slidably provided on the scraper bracket, a scraper sleeve is provided on the side of the scraper slider close to the kettle body, a scraper slide column is slidably provided in the scraper sleeve, a scraper plate matching the kettle body is provided at one end of the scraper slide column extending out of the scraper sleeve, a scraper spring connected to the scraper slide column is provided in the scraper sleeve, a transmission slider is rotatably provided on the rotating shaft, and a transmission rod connected to the scraper slider is provided on the transmission slider.

[0007] As an improvement, the discharging component includes discharging rollers rotatably arranged at both ends of the discharging bin, a discharging belt is provided between the two groups of the discharging rollers, and a plurality of groups of material shifting components are equidistantly provided on the discharging belt. The material shifting components cooperate with the discharging bin to transfer the crystals out of the discharging bin, and a discharging port is provided on the side of the discharging bin away from the kettle body.

[0008] As an improvement, the material tapping assembly includes a material tapping block arranged on the discharge belt, a material tapping slide column is slidably provided in the material tapping block, a material tapping plate is provided at one end of the material tapping slide column extending out of the material tapping block, the material tapping plate is an arc-shaped structure on the side away from the material tapping block, a liquid outlet groove is provided on the material tapping plate, and a material tapping spring connected to the material tapping slide column is provided in the material tapping block.

[0009] As an improvement, the kettle body includes an outer kettle and an inner kettle. The lower end of the inner kettle is connected to an inner refrigeration bin, and guide plates are alternately arranged around the inner kettle. The lower end of the outer kettle is connected to a liquid inlet pipe extending into the inner refrigeration bin, and one side of the outer kettle is connected to a liquid outlet pipe.

[0010] As an improvement, a cleaning component for scraping the inner refrigeration bin is rotatably provided on the inner kettle, and the cleaning component includes a cleaning bracket rotatably provided on the inner kettle, the cleaning bracket and the rotating shaft are matched through a spline, a cleaning plate is provided on the cleaning bracket, a cleaning scraper is provided on the cleaning plate, a cleaning frame is provided on the cleaning bracket, and a cleaning brush is provided on the cleaning frame.

[0011] As an improvement, the driving bracket is provided with a positioning frame, the positioning frame is provided with a side support arm rotatably connected to the rotating sleeve, the sliding sleeve includes a driving sleeve and a matching sleeve, the driving sleeve is slidably connected to the positioning frame, and the positioning frame is provided with a positioning spring connected to the driving sleeve.

[0012] Compared with the prior art, the present invention has the following beneficial effects: the driving component drives the stirring component to rotate, the stirring component stirs the solution, thereby increasing the cooling speed of the solution, and the stirring component drives the scraping component to reciprocate up and down while rotating, thereby scraping the crystals precipitated on the inner wall of the kettle, facilitating the recovery of the crystals and increasing the yield of solid sodium cyanide. Specifically:

[0013] 1. The driving pulley drives the matching pulley to rotate synchronously through the transmission belt, and the matching pulley drives the rotating shaft to rotate through the spline, and the rotation of the rotating shaft drives the stirring rod to rotate to achieve stirring of the solution, thereby increasing the cooling rate of the solution and the crystallization rate. At the same time, the driving pulley drives the reciprocating screw sleeve to reciprocate through the driving screw, and the reciprocating screw sleeve drives the rotating sleeve to rotate through the matching sliding arm, thereby driving the driving gear set on the rotating sleeve to reciprocate, and the reciprocating driving gear drives the sliding jacket to reciprocate up and down through the matching rack, and the sliding jacket drives the rotating shaft to reciprocate up and down, and the rotating shaft drives the scraper assembly to reciprocate up and down, thereby scraping the inner wall of the reactor body to prevent the crystals from adhering to the inner wall of the reactor, thereby improving the yield of solid sodium cyanide;

[0014] 2. The rotating shaft that reciprocates up and down drives the scraper slider to slide back and forth along the scraper bracket through the transmission slider and the transmission rod. The scraper slider drives the scraper slide column, the scraper spring and the scraper plate to reciprocate up and down synchronously through the scraper sleeve. Due to the setting of the scraper spring, the scraper plate can maintain contact with the inner wall of the kettle body while avoiding damage to the inner wall of the kettle body. The scraper plate that reciprocates up and down scrapes the inner wall of the kettle body, thereby removing the crystals from the inner wall of the kettle body, reducing the difficulty of crystal recovery;

[0015] 3. The discharging roller drives the discharging assembly to circulate through the discharging belt, and the discharging assembly drives the discharging slide column, the discharging spring and the discharging plate to circulate through the discharging block. The discharging plate, in cooperation with the liquid outlet slot, separates the crystal from the solution. Furthermore, due to the setting of the discharging port, the circulated discharging plate drives the crystal to be transferred from the discharging port to the discharging bin, thereby improving the automation degree of crystal collection and the convenience of use.

[0016] 4. The setting of the inner cold storage bin facilitates cooling the solution from both the inside and outside directions, thereby increasing the cooling speed of the solution and further increasing the crystallization speed. At the same time, the cleaning component removes the crystals adhered to the inner cold storage bin through the rotating cleaning scraper and cleaning brush, which facilitates the recovery of the crystals and improves the yield of solid sodium cyanide. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic structural diagram of a crystallization device for producing solid sodium cyanide.

[0018] Figure 2 It is an exploded view of a crystallization device for producing solid sodium cyanide according to the present invention.

[0019] Figure 3 The present invention is a cross-sectional view of a crystallization device for producing solid sodium cyanide.

[0020] Figure 4The present invention is a schematic structural diagram of a collection unit portion of a crystallization device for producing solid sodium cyanide.

[0021] Figure 5 The present invention is a schematic structural diagram of the cooperation between a driving component and a stirring component of a crystallization device for producing solid sodium cyanide.

[0022] Figure 6 The present invention is an exploded view of a driving component portion of a crystallization device for producing solid sodium cyanide.

[0023] Figure 7 The present invention is a cross-sectional view of a scraper assembly portion of a crystallization device for producing solid sodium cyanide.

[0024] Figure 8 The present invention is a schematic structural diagram of a cleaning component part of a crystallization device for producing solid sodium cyanide.

[0025] Fig. 9 The present invention is a schematic structural diagram of a discharging component portion of a crystallization device for producing solid sodium cyanide.

[0026] Fig.10 The present invention is a cross-sectional view of a material shifting block portion of a crystallization device for producing solid sodium cyanide.

[0027] Fig.11 The present invention is a cross-sectional view of a kettle body portion of a crystallization device for producing solid sodium cyanide.

[0028] As shown in the figure: 1. Crystallization kettle; 11. Kettle body; 111. Outer kettle; 1111. Liquid inlet pipe; 112. Inner kettle; 1121. Inner cold storage; 1122. Guide plate; 113. Liquid outlet pipe; 12. Kettle cover; 121. Feed pipe; 2. Collection unit; 21. Driving assembly; 211. Driving bracket; 212. Driving pulley; 2121. Driving screw; 2122. Reciprocating screw sleeve; 2123. Matching sliding arm; 2124. Rotating sliding sleeve; 21241. Driving gear; 213. Matching pulley; 214. Transmission belt; 215. Positioning frame; 2151. Positioning spring; 2152. Side arm; 216. Sliding jacket; 2161. Driving jacket; 21611. Matching rack; 2162. Matching jacket; 22. Stirring assembly; 22 1. Rotating shaft; 222. Stirring rod; 223. Transmission slider; 2231. Transmission rod; 23. Scraper assembly; 231. Scraper bracket; 232. Scraper slider; 233. Scraper sleeve; 2331. Positioning slide column; 234. Scraper slide column; 2341. Positioning slide groove; 235. Scraper spring; 236. Scraper plate; 24. Cleaning assembly; 241. Cleaning bracket; 242. Cleaning plate; 2421. Cleaning scraper; 243. Cleaning frame; 2431. Cleaning brush; 3. Discharging bin; 31. Discharging port; 32. Discharging assembly; 321. Discharging roller; 322. Discharging belt; 323. Digging assembly; 3231. Digging block; 3232. Digging slide column; 3233. Digging spring; 3234. Digging plate; 3235. Liquid discharge trough. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0030] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 With attached Fig.11 As shown, a crystallization device for producing solid sodium cyanide comprises a crystallization kettle 1, wherein the crystallization kettle 1 comprises a kettle body 11 and a kettle cover 12, wherein the kettle cover 12 is connected with a feed pipe 121, wherein the kettle cover 12 is provided with a collecting unit 2 for collecting crystals, wherein the collecting unit 2 comprises a stirring assembly 22 rotatably arranged on the kettle cover 12 for stirring the solution, wherein the kettle cover 12 is provided with a driving assembly 21 for driving the stirring assembly 22, wherein the kettle cover 12 is provided with a scraping assembly 23 for scraping the crystals driven by the stirring assembly 22 for reciprocating up and down, wherein a discharge bin 3 is connected to one side of the kettle body 11, wherein a discharge bin 3 is provided with a discharge assembly 32 for transferring the crystals out of the discharge bin 3;

[0031] The kettle body 11 includes an outer kettle 111 and an inner kettle 112, which are combined to form a jacket structure. The lower end of the inner kettle 112 is connected to an inner refrigeration bin 1121, and guide plates 1122 are alternately arranged around the inner kettle 112. The lower end of the outer kettle 111 is connected to a liquid inlet pipe 1111 extending into the inner refrigeration bin 1121, and one side of the outer kettle 111 is connected to a liquid outlet pipe 113. The liquid inlet pipe 1111 and the liquid outlet pipe 113 are both connected to an external refrigerant providing mechanism. The external refrigerant providing mechanism includes a circulation component, which can realize the recycling of the refrigerant. This is the current existing technology and will not be repeated here.

[0032] The working principle of the present invention is as follows: the refrigerant enters between the outer kettle 111 and the inner kettle 112 through the liquid inlet pipe 1111, the refrigerant cools down the inner kettle 112, and the solution to be crystallized is added into the inner kettle 112 through the feed pipe 121. The solution and the refrigerant exchange heat to cool down. At this time, the solubility of sodium cyanide is reduced, and sodium cyanide is precipitated from the solution. During this process, the driving component 21 drives the stirring component 22 to rotate, and the stirring component 22 stirs the solution to increase the speed of heat exchange of the solution and the speed of crystallization. At the same time, the stirring component 22 drives the scraping component 23 to reciprocate up and down, and the scraping component 23 scrapes off the crystals adhered to the inner wall of the inner kettle 112. Due to the stirring of the stirring component 22, the crystals move to the discharge bin 3 under the action of centrifugal force, and the crystals entering the discharge bin 3 are transferred out of the discharge bin 3 under the action of the discharge component 32, thereby completing the crystallization operation of sodium cyanide.

[0033] Combined with Figure 3 , Attachment Figure 4 , Attachment Figure 5 With attached Figure 6 As shown, the stirring assembly 22 includes a rotating shaft 221, a stirring rod 222 extending into the kettle body 11 is provided at the lower end of the rotating shaft 221, and a plurality of stirring rods 222 are arranged along the circumferential direction of the rotating shaft 221. The driving assembly 21 includes a driving bracket 211 arranged on the kettle cover 12, a driving pulley 212 and a matching pulley 213 matched with the rotating shaft 221 through a spline are rotatably provided on the driving bracket 211, and the driving pulley 212 can be driven by a motor, and a transmission belt 214 is provided between the driving pulley 212 and the matching pulley 213;

[0034] The lower end of the driving pulley 212 is provided with a driving screw 2121, and a reciprocating thread is provided on the driving screw 2121. A reciprocating screw sleeve 2122 is connected to the driving screw 2121 through a thread. A matching sliding arm 2123 is rotatably provided on the reciprocating screw sleeve 2122, and a rotating sleeve 2124 rotatably connected to the driving bracket 211 is slidably sleeved on the matching sliding arm 2123. A positioning frame 215 is provided on the driving bracket 211, and a side arm 2152 rotatably connected to the rotating sleeve 2124 is provided on the positioning frame 215. A driving gear 21241 is provided at one end of the rotating sleeve 2124 away from the matching sliding arm 2123. The sliding sleeve 2124 on the driving bracket 211 is slidably sleeved. A sliding jacket 216 is provided which is rotatably connected to the rotating shaft 221, and a matching rack 21611 which is meshed with the driving gear 21241 is provided at one end of the sliding jacket 216. The sliding jacket 216 includes a driving jacket 2161 and a matching jacket 2162. The driving jacket 2161 and the matching jacket 2162 can be fixedly connected by bolts. The driving jacket 2161 is slidably connected to the positioning frame 215. A dovetail slider is provided on the side of the driving jacket 2161 close to the positioning frame 215. The positioning frame 215 is provided with a dovetail groove which slidably cooperates with the dovetail slider. The positioning frame 215 is provided with a positioning spring 2151 connected to the driving jacket 2161.

[0035] The working principle of the driving component 21 driving the stirring component 22 to move is as follows: the driving pulley 212 drives the matching pulley 213 to rotate synchronously through the transmission belt 214, and the rotating shaft 221 that is spline-matched with the matching pulley 213 rotates synchronously with the rotation of the matching pulley 213, and the rotating shaft 221 drives the multiple groups of stirring rods 222 to rotate synchronously, thereby achieving a stirring effect on the solution;

[0036] During this process, the driving screw 2121 arranged at the lower end of the driving pulley 212 rotates synchronously, and the driving screw 2121 drives the reciprocating screw sleeve 2122 matched therewith to reciprocate up and down along the axial direction of the driving screw 2121 through the reciprocating thread. Since the rotating sleeve 2124 is rotatably arranged on the side support arm 2152, the rotating sleeve 2124 can rotate in a circle. Furthermore, since the matching sliding arm 2123 is slidably connected to the rotating sleeve 2124 and the matching sliding arm 2123 is rotatably connected to the reciprocating screw sleeve 2122, the friction of the driving screw 2121 on the reciprocating screw sleeve 2122 is offset. While the torque of 122 is being exerted, the reciprocating screw sleeve 2122 that reciprocates up and down can drive the rotating sleeve 2124 to reciprocate through the cooperating sliding arm 2123, and the driving gear 21241 rotates synchronously. The driving gear 21241 drives the driving sleeve 2161 to slide along the positioning frame 215 through the cooperating rack 21611 that is meshed with it, and the driving sleeve 2161 drives the rotating shaft 221 to reciprocate up and down through the cooperating sleeve 2162 that is fixedly connected with it. The split sliding sleeve 216 improves the convenience of installation, and the setting of the positioning spring 2151 improves the tightness of the fit.

[0037] Combined with Figure 2 , Attachment Figure 3 , Attachment Figure 4 With attached Figure 7 As shown, the scraper assembly 23 includes a scraper bracket 231 arranged on the kettle cover 12, and the scraper bracket 231 is equidistantly arranged in a plurality of groups along the circumferential direction of the kettle cover 12. A scraper slider 232 is slidably arranged on the scraper bracket 231, and a plurality of groups of scraper sliders 232 are equidistantly arranged along the linear direction of the scraper bracket 231. A scraper sleeve 233 is provided on the side of the scraper slider 232 close to the kettle body 11, and a scraper slide column 234 is slidably arranged in the scraper sleeve 233. The scraper slide column 234 extends out of one end of the scraper sleeve 233 and is provided with a There is a scraper plate 236 that cooperates with the kettle body 11, and a scraper spring 235 connected to the scraper slide 234 is arranged in the scraper sleeve 233. A positioning slide 2331 is arranged in the scraper sleeve 233. The positioning slide 2331 is a regular polygon structure. The scraper slide 234 is provided with a positioning groove 2341 that slides with the positioning slide 2331. A transmission slider 223 is rotatably provided on the rotating shaft 221, and a transmission rod 2231 connected to the scraper slider 232 is provided on the transmission slider 223.

[0038] The working principle of the scraper assembly 23: during the up and down reciprocating motion of the rotating shaft 221, since the scraper slider 232 is slidably set on the scraper bracket 231, the scraper slider 232 can slide along the linear direction of the scraper bracket 231. At the same time, the rotating shaft 221 drives the transmission slider 223 to synchronously reciprocate up and down. The transmission slider 223 drives the scraper slider 232 to synchronously reciprocate up and down through the transmission rod 2231 connected thereto. The scraper slider 232 drives the scraper spring 235, the scraper slide column 234 and the scraper plate 236 to slide up and down synchronously through the scraper sleeve 233. The scraper plate 236 that slides up and down reciprocates scrapes off the crystals adhered to the inner wall of the inner kettle 112, which is convenient for the subsequent collection of the crystals.

[0039] Combined with Figure 3 , Attachment Fig. 9 With attached Fig.10 As shown, the discharging assembly 32 includes discharging rollers 321 rotatably arranged at both ends of the discharging bin 3, the discharging rollers 321 can be driven by a motor, a discharging belt 322 is arranged between two groups of the discharging rollers 321, and a plurality of groups of material shifting assemblies 323 are equidistantly arranged on the discharging belt 322, the material shifting assemblies 323 cooperate with the discharging bin 3 to transfer the crystals out of the discharging bin 3, and the discharging bin 3 is connected to a side away from the kettle body 11 and is provided with a discharging port 31, and the discharging port 31 is arranged obliquely;

[0040] The material shifting assembly 323 includes a material shifting block 3231 arranged on the discharge belt 322, a material shifting slide 3232 is slidably provided in the material shifting block 3231, a material shifting plate 3234 is provided at one end of the material shifting slide 3232 extending out of the material shifting block 3231, the material shifting plate 3234 is an arc-shaped structure on the side away from the material shifting block 3231, a liquid outlet groove 3235 is provided on the material shifting plate 3234, and a plurality of liquid outlet grooves 3235 are arranged along the linear direction of the material shifting plate 3234, and a material shifting spring 3233 connected to the material shifting slide 3232 is provided in the material shifting block 3231.

[0041] The working principle of the discharging assembly 32 is as follows: the discharging roller 321 rotates, the discharging roller 321 drives the discharging belt 322 to rotate synchronously, and the rotating discharging belt 322 drives the connected discharging assembly 323 to rotate synchronously, and the discharging assembly 323 drives the discharging spring 3233, the discharging slide post 3232 and the discharging plate 3234 to move synchronously through the discharging block 3231. The setting of the discharging spring 3233 enables the discharging plate 3234 to maintain a sliding contact with the inner wall of the storage bin, thereby facilitating the collection of the crystals entering the discharging bin 3. In the process of the discharging plate 3234 moving upward, the liquid outlet groove 3235 separates the crystals from the solution to prevent the solution from flowing out of the discharging bin 3. When the discharging plate 3234 moves to the discharging port 31, the crystals move to the discharging port 31 through the discharging plate 3234 with an arc on the inner side under the action of gravity, thereby being transferred out of the discharging bin 3 to realize the collection of the crystals.

[0042] Combined with Figure 2 , Attachment Figure 3 , Attachment Figure 4 With attached Figure 8 As shown, a cleaning component 24 for scraping the inner refrigeration bin 1121 is rotatably provided on the inner kettle 112, and the cleaning component 24 includes a cleaning bracket 241 rotatably provided on the inner kettle 112, the cleaning bracket 241 is splined with the rotating shaft 221, a cleaning plate 242 is provided on the cleaning bracket 241, and a plurality of cleaning plates 242 are arranged along the circumferential direction of the cleaning bracket 241, a cleaning scraper 2421 is provided on the cleaning plate 242, a cleaning frame 243 is provided on the cleaning bracket 241, and a plurality of cleaning frames 243 are arranged along the circumferential direction of the cleaning bracket 241, and a cleaning brush 2431 is provided on the cleaning frame 243.

[0043] Working principle of the cleaning component 24: during the rotation of the rotating shaft 221, the rotating shaft 221 drives the cleaning bracket 241 to rotate through the spline, the cleaning bracket 241 rotates synchronously with the cleaning frame 243 through the cleaning plate 242, the cleaning plate 242 drives the cleaning scraper 2421 to rotate, the cleaning frame 243 drives the cleaning brush 2431 to rotate, and then the inner refrigeration bin 1121 is scraped and swept to remove the crystals adhered to the inner refrigeration bin 1121, thereby facilitating the subsequent recovery of the crystals.

[0044] When the present invention is implemented, the liquid inlet pipe 1111 and the liquid outlet pipe 113 are connected to the external refrigerant supply mechanism respectively, the feed pipe 121 is connected to the sodium cyanide solution supply mechanism, and the discharge port 31 is connected to the sodium cyanide crystal collection mechanism to complete the installation of the present invention;

[0045] When in use, sodium cyanide solution is added into the inner kettle 112 through the feed pipe 121, and refrigerant is introduced into the space between the outer kettle 111 and the inner kettle 112 through the liquid inlet pipe 1111. The refrigerant cools the sodium cyanide solution, thereby reducing the solubility of sodium cyanide to precipitate sodium cyanide to form crystals, driving the driving pulley 212 to rotate, and the matching pulley 213 rotates synchronously. The matching pulley 213 drives the stirring rod 222 to rotate through the rotating shaft 221 to stir the solution. At the same time, the driving pulley 212 drives the screw 212 The rotating shaft 221 is driven to reciprocate up and down, and the rotating shaft 221 drives the scraper plate 236 to reciprocate up and down, thereby scraping off the crystals adhered to the inner wall of the inner kettle 112, and the rotating shaft 221 drives the cleaning scraper plate 2421 and the cleaning brush 2431 to rotate, scraping off the crystals adhered to the inner cold bin 1121, and driving the discharging roller 321 to rotate, and the discharging roller 321 drives the discharging plate 3234 through the discharging belt 322 to transfer the crystals out of the discharging bin 3 through the discharging port 31, thereby realizing the crystallization operation of sodium cyanide.

[0046] The present invention and its embodiments are described above, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A crystallization device for producing solid sodium cyanide, comprising a crystallization kettle (1), wherein the crystallization kettle (1) comprises a kettle body (11) and a kettle cover (12), and the kettle cover (12) is provided with a collecting unit (2) for collecting crystals, characterized in that: The collecting unit (2) comprises a stirring component (22) rotatably arranged on the kettle cover (12) for stirring the solution, a driving component (21) for driving the stirring component (22) is arranged on the kettle cover (12), and a scraping component (23) is arranged on the kettle cover (12) for scraping the crystals by being driven by the stirring component (22) to perform up and down reciprocating motion; The stirring assembly (22) comprises a rotating shaft (221), the lower end of the rotating shaft (221) is provided with a stirring rod (222) extending into the kettle body (11), the driving assembly (21) comprises a driving bracket (211) arranged on the kettle cover (12), the driving bracket (211) is rotatably provided with a driving pulley (212) and a matching pulley (213) matched with the rotating shaft (221) via a spline, and a transmission belt (212) is provided between the driving pulley (212) and the matching pulley (213). 14), a driving screw rod (2121) is provided at the lower end of the driving pulley (212), a reciprocating screw sleeve (2122) is connected to the driving screw rod (2121) by means of a thread, a matching sliding arm (2123) is rotatably provided on the reciprocating screw sleeve (2122), a rotating sliding sleeve (2124) rotatably connected to the driving bracket (211) is slidably sleeved on the matching sliding arm (2123), and a driving gear (21241) is provided at one end of the rotating sliding sleeve (2124) away from the matching sliding arm (2123); The driving bracket (211) is slidably provided with a sliding jacket (216) rotatably connected to the rotating shaft (221), and one end of the sliding jacket (216) is provided with a matching rack (21611) meshing with the driving gear (21241); A discharge bin (3) is provided on one side of the kettle body (11), and a discharge component (32) for transferring crystals out of the discharge bin (3) is provided in the discharge bin (3); The discharging assembly (32) comprises discharging rollers (321) rotatably arranged at both ends of the discharging bin (3), a discharging belt (322) is arranged between two groups of the discharging rollers (321), and a plurality of groups of material shifting assemblies (323) are equidistantly arranged on the discharging belt (322), the material shifting assemblies (323) cooperate with the discharging bin (3) to transfer the crystals out of the discharging bin (3), and a discharging port (31) is arranged on the side of the discharging bin (3) away from the kettle body (11); The material shifting assembly (323) comprises a material shifting block (3231) arranged on a material discharging belt (322), a material shifting slide post (3232) being slidably arranged in the material shifting block (3231), a material shifting plate (3234) being arranged at one end of the material shifting slide post (3232) extending out of the material shifting block (3231), a side of the material shifting plate (3234) away from the material shifting block (3231) being an arc-shaped structure, a liquid outlet groove (3235) being arranged on the material shifting plate (3234), and a material shifting spring (3233) connected to the material shifting slide post (3232) being arranged in the material shifting block (3231).

2. A crystallization device for the production of solid sodium cyanide according to claim 1, characterized in that: The scraper assembly (23) comprises a scraper support (231) arranged on the kettle cover (12); a scraper slider (232) is slidably provided on the scraper support (231); a scraper sleeve (233) is provided on the side of the scraper slider (232) close to the kettle body (11); a scraper slide column (234) is slidably provided in the scraper sleeve (233); a scraper plate (236) matching with the kettle body (11) is provided at one end of the scraper slide column (234) extending out of the scraper sleeve (233); a scraper spring (235) connected to the scraper slide column (234) is provided in the scraper sleeve (233); a transmission slider (223) is rotatably provided on the rotating shaft (221); and a transmission rod (2231) connected to the scraper slider (232) is provided on the transmission slider (223).

3. A crystallization device for producing solid sodium cyanide according to claim 1, characterized in that: The kettle body (11) comprises an outer kettle (111) and an inner kettle (112); the lower end of the inner kettle (112) is connected to an inner refrigeration bin (1121); guide plates (1122) are alternately arranged around the inner kettle (112); the lower end of the outer kettle (111) is connected to a liquid inlet pipe (1111) extending into the inner refrigeration bin (1121); and one side of the outer kettle (111) is connected to a liquid outlet pipe (113).

4. A crystallization device for the production of solid sodium cyanide according to claim 3, characterized in that: A cleaning component (24) for scraping the inner refrigeration bin (1121) is rotatably provided on the inner kettle (112), the cleaning component (24) comprising a cleaning bracket (241) rotatably provided on the inner kettle (112), the cleaning bracket (241) and the rotating shaft (221) being engaged via a spline, a cleaning plate (242) being provided on the cleaning bracket (241), a cleaning scraper (2421) being provided on the cleaning plate (242), a cleaning frame (243) being provided on the cleaning bracket (241), and a cleaning brush (2431) being provided on the cleaning frame (243).

5. A crystallization device for producing solid sodium cyanide according to claim 1, characterized in that: The driving bracket (211) is provided with a positioning bracket (215), the positioning bracket (215) is provided with a side arm (2152) rotatably connected to the rotating sleeve (2124), the sliding sleeve (216) comprises a driving sleeve (2161) and a matching sleeve (2162), the driving sleeve (2161) is slidably connected to the positioning bracket (215), and the positioning bracket (215) is provided with a positioning spring (2151) connected to the driving sleeve (2161).

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