A drying and separation device for preparing molecular sieve by circulating crystallization mother liquor

Abstract

The present invention discloses a drying and separation device for preparing molecular sieve by circulating crystallization mother liquor, which relates to the technical field of drying and separation. A partition drying component is installed inside the support frame. One end of the support frame is fixedly installed with a T-shaped pipe. A gas supply pipe is installed through the middle of the top end of the T-shaped pipe. The bottom end of the support frame is welded with a bottom support plate. Support concentric rings are welded at both ends of the outer hollow cylinder, the middle hollow cylinder and the inner hollow cylinder. The support frame is equipped with an auxiliary feeding and discharging component. In the present invention, there is crystallization mother liquor solid to be dried between the middle hollow cylinder and the inner hollow cylinder, between the outer hollow cylinder and the middle hollow cylinder, and between the outer protective cylinder and the outer hollow cylinder. Hot air is sent in through the gas supply pipe and circulated, dividing the raw materials into multiple portions and separating them, ensuring that the raw materials are dried evenly and are not easily damp inside, reducing the drying time. While multiple portions of raw materials are dried simultaneously, the drying efficiency is improved and the drying effect is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of drying and separation, and specifically relates to a drying and separation device for preparing molecular sieve by circulating crystallization mother liquor. Background Technique

[0002] Molecular sieve is a crystalline compound with a specific pore size distribution. There are various synthesis methods of molecular sieve. One typical synthesis method includes the following steps: after the prepared initial gel mixture is stirred evenly, it is crystallized to obtain a pre-crystallized liquid, and then the prepared pre-crystallized liquid is added to the prepared initial gel solution and stirred evenly. After the crystallization is completed, a molecular sieve crystallization liquid is obtained. Then, the obtained molecular sieve crystallization liquid is subjected to vacuum filtration separation, cooled, and the molecular sieve mother liquor is filtered off, washed to neutral and dried to obtain the molecular sieve raw powder.

[0003] The patent with the application number 202210386648.1 mentions "a high-salt mother liquor drying device with low carbon emissions". The device can condense and release heat of water vapor after the water vapor enters through the provided condensing device, and apply these heats to the mother liquor at the bottom of the drying cylinder to achieve the purpose of low-carbon environmental protection, energy conservation and emission reduction.

[0004] However, the solid content in the molecular sieve crystallization liquid is relatively large. When directly dried by the above drying device, the solids are prone to accumulate, resulting in difficulty in drying the internal liquid, a long drying time, uneven drying, and the need for drying in small amounts and multiple times, resulting in low drying efficiency. Summary of the Invention

[0005] The present invention provides a drying and separation device for preparing molecular sieve by circulating crystallization mother liquor, which can effectively solve the problems mentioned in the above background technique, that is, the solids are prone to accumulate, resulting in difficulty in drying the internal liquid, a long drying time, uneven drying, and the need for drying in small amounts and multiple times, resulting in low drying efficiency.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A drying and separation device for preparing molecular sieve by circulating crystallization mother liquor, including a support frame, and a partition drying component is installed inside the support frame, and the partition drying component includes a top limiting frame;

[0007] Top limiting frames are welded to the tops of both ends of the support frame. A T-shaped pipe is fixedly installed at one end of the support frame. A first middle partition is welded in the middle of the T-shaped pipe. An air supply pipe is installed through the middle of the top of the T-shaped pipe. An electric heating wire is installed inside the T-shaped pipe. A bottom support plate is welded to the bottom end of the support frame;

[0008] An outer protective cylinder is rotatably installed at the position between the support frame and the top limiting frame. An outer hollow rotating cylinder is rotatably embedded inside the outer protective cylinder. A middle hollow rotating cylinder is rotatably embedded inside the outer hollow rotating cylinder. An inner hollow rotating cylinder is rotatably embedded inside the middle hollow rotating cylinder. Material distributing plates are evenly welded to the inner walls of the outer protective cylinder, the outer hollow rotating cylinder and the middle hollow rotating cylinder. Support concentric rings are welded to both ends of the outer hollow rotating cylinder, the middle hollow rotating cylinder and the inner hollow rotating cylinder. Rack bars are fixedly installed on the inner side edges of the support concentric rings of the outer protective cylinder, the outer hollow rotating cylinder and the middle hollow rotating cylinder. Gears are meshed on both sides of each rack bar, and the gears are connected to the output shaft of the driving motor.

[0009] According to the above technical solution, annular air inlet grooves are respectively formed in the middle parts of the support concentric rings close to one end of the T-shaped pipe. Support end rings are rotatably embedded inside the annular air inlet grooves. The support end rings are connected to the T-shaped pipe, and air exchange holes are symmetrically formed in the support end rings.

[0010] A second middle partition plate is welded through the middle of the air supply pipe. A air supply box is fixedly installed at one end of the second middle partition plate. An air supply pump is installed through one end of the air supply box. A filter box is fixedly installed at one end of the second middle partition plate. The bottom ends of the filter box and the air supply box are connected through an arc-shaped pipe.

[0011] According to the above technical solution, driving plates are symmetrically welded to the other end of the support frame. The driving motors are respectively connected to the driving plates through bolts.

[0012] According to the above technical solution, third middle partition plates are welded to the inner bottom ends of the outer hollow rotating cylinder, the middle hollow rotating cylinder and the inner hollow rotating cylinder. Feeding ports are respectively formed at the top ends of the outer protective cylinder, the outer hollow rotating cylinder, the middle hollow rotating cylinder and the inner hollow rotating cylinder. Movable extraction plates are slidably embedded inside the feeding ports. A heat insulation cylinder is fixedly sleeved outside the outer hollow rotating cylinder. The outer side of the heat insulation cylinder is a smooth curved surface and fits the bottom support plate and the top limiting frame.

[0013] Observation holes are formed at the top ends of the feeding ports of the support concentric rings close to the driving plates. Observation plates are embedded inside the observation holes. A pressure relief valve is embedded in the middle of the observation plates. The length of the third middle partition plate is two-thirds of the length of the outer protective cylinder.

[0014] According to the above technical solution, the input ends of the heating wire, the driving motor and the air supply pump are respectively electrically connected to the output end of an external power supply.

[0015] One end of the third middle partition plate extends beyond the end face of the air supply pipe and separates the air supply box and the filter box.

[0016] According to the above technical solution, sealing rings are respectively embedded in the middle parts of the outer sides of the support concentric rings. The outer sides of the sealing rings are movably embedded in the inner walls of adjacent support concentric rings.

[0017] According to the above technical solution, an auxiliary feeding and discharging assembly is installed on the support frame, and the auxiliary feeding and discharging assembly includes a feeding fixed pipe;

[0018] The top end of the top limit frame is fixedly connected to the bottom end of the feeding fixed pipe. A top material opening is provided at the bottom end of the feeding fixed pipe. A feeding motor is installed at one end of the feeding fixed pipe. The output shaft of the feeding motor penetrates through the feeding fixed pipe and is connected to a rotating plate;

[0019] One side of the feeding fixed pipe is hinged to a feeding movable pipe. A guiding opening is provided at the top end of the feeding movable pipe. A slider is slidably installed inside the guiding opening. A limiting mounting plate is welded at the position where the bottom end of the slider is inside the feeding movable pipe. A rubber strip is bonded to the bottom end of the limiting mounting plate. A vibrating plate is bonded to the bottom end of the rubber strip. A micro-vibrating motor is installed on one side of the vibrating plate. A limiting clamping hole is provided at one end of the feeding fixed pipe near the micro-vibrating motor. The slider is sleeved in the middle of the lead screw through a screw hole. One end of the lead screw is connected to a leveling motor. Both ends of the lead screw respectively rotate through and are connected to both ends of the top of the feeding movable pipe;

[0020] A bottom material opening is provided on the bottom surface of the bottom support plate.

[0021] According to the above technical solution, a sliding clamping opening is provided at one end of the bottom support plate. A sliding seat is slidably clamped inside the sliding clamping opening. A vertical plate is slidably clamped and installed at one end of the sliding seat near the observation plate. A pulling handle is welded in the middle of the vertical plate. An extrusion pipe is installed through the vertical plate corresponding to the position of the observation plate. An end cover is installed at one end of the extrusion pipe.

[0022] According to the above technical solution, the input end of the micro-vibrating motor is electrically connected to the output end of an external power supply, and the micro-vibrating motor is in interference fit with the limiting clamping hole.

[0023] According to the above technical solution, the internal longitudinal section of the feeding fixed pipe and the feeding movable pipe is circular after being combined, and the two side edges of the rotating plate are attached to the inner walls of the feeding fixed pipe and the feeding movable pipe.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] 1. A partitioned drying component is provided. When drying is required, the feeding ports of the outer protective cylinder, the outer hollow rotating cylinder, and the middle hollow rotating cylinder all face upward. The raw material enters the space between the middle hollow rotating cylinder and the inner hollow rotating cylinder. Subsequently, the feeding port of the middle hollow rotating cylinder is closed by a movable drawplate. Repeat the above feeding steps until there is crystallized mother liquor solid to be dried between the outer hollow rotating cylinder and the middle hollow rotating cylinder, and between the outer protective cylinder and the outer hollow rotating cylinder. Hot air is sent in through the air supply pipe and circulated, dividing the raw material into multiple portions and separating them, and heating and drying are carried out at the separated positions. The drying air does not directly contact the raw material, avoiding the introduction of new impurities, ensuring uniform drying of the raw material and preventing internal moisture, reducing the drying time. At the same time, multiple portions of raw materials are dried simultaneously, ensuring the amount of drying during a single drying and separation operation, improving the drying efficiency while ensuring the drying effect.

[0026] 2. An auxiliary feeding and discharging component is provided. The filtered crystallized mother liquor solid is placed on the top surface of the rotating plate inside the feeding fixed pipe. The leveling motor drives the slider to reciprocate along the guiding port through the lead screw. Start the micro vibration motor. When the vibrating plate vibrates and passes through the piled-up crystallized mother liquor solid, it will continuously level the piled-up material until the crystallized mother liquor solid is evenly distributed on the top surface of the rotating plate. Uniformly distributing the crystallized mother liquor solid before feeding makes it easier to disperse during drying, improving the subsequent drying effect.

[0027] After the initial drying is completed, open the end cover to collect the vaporized high-temperature mother liquor for recycling, reducing waste of raw materials and preventing possible air pollution. Then open the observation plate inside the observation hole to check the drying condition. If the requirement is not met, continue drying until the drying is completed.

[0028] In summary, the partitioned drying component separates the raw material into multiple non-contact portions for simultaneous drying, ensuring the drying efficiency while guaranteeing the drying effect. The auxiliary feeding and discharging component disperses the raw material during feeding, further improving the subsequent drying efficiency, and collecting the excess vaporized mother liquor, making the overall equipment more environmentally friendly and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings are used to provide further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0030] In the drawings:

[0031] Figure 1 is a schematic structural diagram of the present invention;

[0032] Figure 2 is the present invention Figure 1 structural schematic diagram of area A;

[0033] Figure 3 is a schematic structural diagram of the partitioned drying component of the present invention;

[0034] Figure 4 is a schematic diagram of the installation structure of the T-shaped tube of the present invention;

[0035] Figure 5 is a schematic diagram of the installation structure of the support end ring of the present invention;

[0036] Figure 6 is a schematic diagram of the installation structure of the support concentric ring of the present invention;

[0037] Figure 7 is a schematic diagram of the installation structure of the rack of the present invention;

[0038] Figure 8 is a schematic diagram of the installation structure of the material distribution plate of the present invention;

[0039] Figure 9 is a schematic diagram of the installation structure of the third middle partition plate of the present invention;

[0040] Figure 10 is a schematic diagram of the structure of the auxiliary feeding and discharging assembly of the present invention;

[0041] Figure 11 is a schematic diagram of the installation structure of the rotating plate of the present invention;

[0042] Figure 12 is the present invention Figure 11 schematic diagram of the B area;

[0043] Reference numerals in the figure: 1, support frame;

[0044] 2, separation and drying assembly; 201, top limit frame; 202, T-shaped tube; 203, first middle partition plate; 204, air supply pipe; 205, heating wire; 206, bottom support plate; 207, outer protection cylinder; 208, outer hollow rotating cylinder; 209, middle hollow rotating cylinder; 210, inner hollow rotating cylinder; 211, material distribution plate; 212, support concentric ring; 213, rack; 214, gear; 215, driving motor; 216, annular air inlet groove; 217, support end ring; 218, air exchange hole; 219, second middle partition plate; 220, air supply box; 221, air supply pump; 222, filter box; 223, arc-shaped pipe; 224, driving plate; 225, third middle partition plate; 226, movable draw plate; 227, heat insulation cylinder; 228, observation hole; 229, observation plate; 230, pressure relief valve; 231, feed inlet; 232, sealing ring;

[0045] 3. Auxiliary feeding and discharging assembly; 301. Feeding fixed pipe; 302. Top feeding port; 303. Feeding motor; 304. Rotating plate; 305. Feeding movable pipe; 306. Guide port; 307. Slide block; 308. Limit mounting plate; 309. Rubber strip; 310. Vibration plate; 311. Micro vibration motor; 312. End cover; 313. Limit card hole; 314. Lead screw; 315. Flattening motor; 316. Bottom material port; 317. Sliding bayonet; 318. Slide base; 319. Vertical plate; 320. Pull handle; 321. Extrusion pipe. Detailed implementation mode

[0046] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0047] Embodiment: As Figures 1-12 shown, the present invention provides a technical solution for a drying and separating device for preparing molecular sieve by circulating crystallization mother liquor, including a support frame 1. Inside the support frame 1, a partition drying assembly 2 is installed. The partition drying assembly 2 includes a top limit frame 201, a T-shaped pipe 202, a first middle partition 203, an air supply pipe 204, a heating wire 205, a bottom support plate 206, an outer protection cylinder 207, an outer hollow rotating cylinder 208, a middle hollow rotating cylinder 209, an inner hollow rotating cylinder 210, a material distribution plate 211, a support concentric ring 212, a rack 213, a gear 214, a driving motor 215, an annular air inlet groove 216, a support end ring 217, an air exchange hole 218, a second middle partition 219, an air supply box 220, an air supply pump 221, a filter box 222, an arc-shaped pipe 223, a driving plate 224, a third middle partition 225, a movable extraction plate 226, a heat insulation cylinder 227, an observation hole 228, an observation plate 229, a pressure relief valve 230, a feed inlet 231 and a sealing ring 232;

[0048] At both top ends of the support frame 1, top limit frames 201 are welded. At one end of the support frame 1, a T-shaped pipe 202 is fixedly installed. In the middle of the T-shaped pipe 202, a first middle partition 203 is welded. In the middle of the top end of the T-shaped pipe 202, an air supply pipe 204 is installed through. In the T-shaped pipe 202, a heating wire 205 is installed. At the bottom end of the support frame 1, a bottom support plate 206 is welded;

[0049] A support frame 1 is rotatably installed between a bottom support plate 206 and a top limit frame 201 with an outer protective cylinder 207. An outer hollow rotating cylinder 208 is rotatably embedded inside the outer protective cylinder 207. A middle hollow rotating cylinder 209 is rotatably embedded inside the outer hollow rotating cylinder 208. An inner hollow rotating cylinder 210 is rotatably embedded inside the middle hollow rotating cylinder 209. Material distributing plates 211 are evenly welded to the inner walls of the outer protective cylinder 207, the outer hollow rotating cylinder 208 and the middle hollow rotating cylinder 209. Support concentric rings 212 are welded to both ends of the outer hollow rotating cylinder 208, the middle hollow rotating cylinder 209 and the inner hollow rotating cylinder 210. Rack bars 213 are fixedly installed on the inner side edges of the support concentric rings 212 of the outer protective cylinder 207, the outer hollow rotating cylinder 208 and the middle hollow rotating cylinder 209. Gear 214 is meshed with both sides of the rack bar 213, and the gear 214 is connected to the output shaft of a drive motor 215;

[0050] In the middle of the supporting concentric rings 212 near one end of the T-shaped pipe 202, annular air inlet grooves 216 are respectively formed. Inside the annular air inlet grooves 216, supporting end rings 217 are rotatably and embeddedly installed. In the middle of the outer sides of the supporting concentric rings 212, sealing rings 232 are inlaid. The outer sides of the sealing rings 232 are movably embedded in the inner walls of the adjacent supporting concentric rings 212 to improve the sealing effect at the rotating connection and reduce the overflow of gas. The supporting end rings 217 are connected to the T-shaped pipe 202. The supporting end rings 217 are symmetrically provided with air exchange holes 218. In the middle of the air supply pipe 204, a second middle partition plate 219 is welded through. One end of the second middle partition plate 219 is fixedly installed with an air supply box 220. One end of the air supply box 220 is penetrated and installed with an air supply pump 221. The input ends of the heating wire 205, the driving motor 215 and the air supply pump 221 are respectively electrically connected to the output end of an external power supply. One end of the third middle partition plate 225 extends beyond the end face of the air supply pipe 204 and separates the air supply box 220 and the filter box 222 to ensure the normal operation of the heating wire 205, the driving motor 215 and the air supply pump 221. One end of the second middle partition plate 219 is fixedly installed with a filter box 222. The filter box 222 and the bottom of the air supply box 220 are connected through an arc-shaped pipe 223. The other end of the support frame 1 is symmetrically welded with driving plates 224. The driving motors 215 are respectively connected to the driving plates 224 through bolts. At the bottom ends inside the outer hollow rotating cylinder 208, the middle hollow rotating cylinder 209 and the inner hollow rotating cylinder 210, third middle partition plates 225 are respectively welded. At the tops of the outer protection cylinder 207, the outer hollow rotating cylinder 208, the middle hollow rotating cylinder 209 and the inner hollow rotating cylinder 210, feeding ports 231 are respectively formed. Inside the feeding ports 231, movable extraction plates 226 are slidably and embeddedly installed. The outer side of the outer hollow rotating cylinder 208 is fixedly sleeved with a heat insulation cylinder 227. The outer side of the heat insulation cylinder 227 is a smooth curved surface and fits the bottom support plate 206 and the top limit frame 201. At the top of the feeding port 231 of the supporting concentric ring 212 close to the driving plate 224, an observation hole 228 is formed. Inside the observation hole 228, an observation plate 229 is inlaid. In the middle of the observation plate 229, a pressure relief valve 230 is inlaid. The length of the third middle partition plate 225 is two-thirds of the length of the outer protection cylinder 207 to facilitate the circulating flow of air and ensure the heating and drying effect.

[0051] The support frame 1 is provided with an auxiliary feeding and discharging assembly 3. The auxiliary feeding and discharging assembly 3 includes a feeding fixed pipe 301, a top feeding port 302, a feeding motor 303, a rotating plate 304, a feeding movable pipe 305, a guiding port 306, a sliding block 307, a limit mounting plate 308, a rubber strip 309, a vibrating plate 310, a micro vibrating motor 311, an end cover 312, a limit clamping hole 313, a lead screw 314, a leveling motor 315, a bottom feeding port 316, a sliding clamping opening 317, a sliding seat 318, a vertical plate 319, a pull handle 320 and an extrusion pipe 321;

[0052] The top end of the top limit frame 201 is fixedly connected to the bottom end of the feeding fixed pipe 301. A top feeding port 302 is opened at the bottom end of the feeding fixed pipe 301. A feeding motor 303 is installed at one end of the feeding fixed pipe 301. The output shaft of the feeding motor 303 penetrates through the feeding fixed pipe 301 and is connected to a rotating plate 304.

[0053] One side of the feeding fixed pipe 301 is hinged to a feeding movable pipe 305. The internal longitudinal section of the feeding fixed pipe 301 and the feeding movable pipe 305 is circular after combination. The two side edges of the rotating plate 304 are attached to the inner walls of the feeding fixed pipe 301 and the feeding movable pipe 305, so that when the rotating plate 304 is horizontal, it closes the middle part of the feeding fixed pipe 301. A guiding port 306 is opened at the top end of the feeding movable pipe 305. A slider 307 is slidably installed inside the guiding port 306. A limiting mounting plate 308 is welded at the bottom end of the slider 307 inside the feeding movable pipe 305. A rubber strip 309 is adhered to the bottom end of the limiting mounting plate 308. A vibrating plate 310 is adhered to the bottom end of the rubber strip 309. A micro-vibrating motor 311 is installed on one side of the vibrating plate 310. A limiting card hole 313 is opened at one end of the feeding fixed pipe 301 near the micro-vibrating motor 311. The input end of the micro-vibrating motor 311 is electrically connected to the output end of an external power supply. The micro-vibrating motor 311 and the limiting card hole 313 are in transitional fit, which is convenient for the micro-vibrating motor 311 to be embedded into the limiting card hole 313 to prevent the rotating plate 304 from colliding with the micro-vibrating motor 311. The slider 307 is sleeved in the middle of a lead screw 314 through a screw hole. One end of the lead screw 314 is connected to a leveling motor 315. The two ends of the lead screw 314 respectively rotate through and are connected to the two top ends of the feeding movable pipe 305.

[0054] A bottom material port 316 is opened on the bottom surface of the bottom support plate 206. A sliding bayonet 317 is opened at one end of the bottom support plate 206. A sliding seat 318 is slidably clamped inside the sliding bayonet 317. A vertical plate 319 is slidably clamped and installed at one end of the sliding seat 318 near the observation plate 229. A pull handle 320 is welded in the middle of the vertical plate 319. An extrusion pipe 321 is installed through the vertical plate 319 corresponding to the position of the observation plate 229. An end cover 312 is installed at one end of the extrusion pipe 321.

[0055] Working principle and usage process of the present invention: Open the feeding movable tube 305. At this time, the rotating plate 304 is in a horizontal state. Place the filtered crystallized mother liquor solid on the top surface of the rotating plate 304 inside the feeding fixed tube 301. Close the feeding movable tube 305 so that the feeding movable tube 305 and the feeding fixed tube 301 are recombined into a cylinder. Start the leveling motor 315. The leveling motor 315 drives the slider 307 to reciprocate along the guiding opening 306 through the lead screw 314. After repeating several times, the vibrating plate 310 fits against the inner end face of the feeding fixed tube 301, and the micro-vibrating motor 311 is embedded in the limit clamping hole 313 to prevent the vibrating plate 310 from hindering the rotation of the rotating plate 304. During the reciprocating movement of the vibrating plate 310, the micro-vibrating motor 311 is started. The micro-vibrating motor 311 drives the vibrating plate 310 to vibrate. The limit mounting plate 308 is connected to the vibrating plate 310 through the rubber strip 309 and will not be affected. When the vibrating vibrating plate 310 passes through the piled-up crystallized mother liquor solid, it continuously levels the piled-up material until the crystallized mother liquor solid is evenly distributed on the top surface of the rotating plate 304. By evenly distributing the crystallized mother liquor solid before feeding, it will be easier to disperse during drying, improving the subsequent drying effect.

[0056] Start the driving motor 215. The gear 214 drives the rack 213 to rotate, thereby driving the feeding ports 231 of the outer protective cylinder 207, the outer hollow rotating cylinder 208, and the middle hollow rotating cylinder 209 to face upward. The feeding port 231 of the outer protective cylinder 207 coincides with the top feeding port 302 of the feeding fixed tube 301. Pull out the movable draw plate 226 inside the feeding ports 231 of the outer protective cylinder 207, the outer hollow rotating cylinder 208, and the middle hollow rotating cylinder 209, and only leave the movable draw plate 226 inside the feeding port 231 of the inner hollow rotating cylinder 210. The feeding motor 303 drives the rotating plate 304 to rotate and tilt. The raw material sequentially passes through the multiple feeding ports 231 and enters the space between the middle hollow rotating cylinder 209 and the inner hollow rotating cylinder 210. Subsequently, close the feeding port 231 of the middle hollow rotating cylinder 209 through the movable draw plate 226. Repeat the above feeding steps until there are crystallized mother liquor solids to be dried between the outer hollow rotating cylinder 208 and the middle hollow rotating cylinder 209, and between the outer protective cylinder 207 and the outer hollow rotating cylinder 208.

[0057] When drying is required, the power supplies of the air supply pump 221 and the heating wire 205 are turned on. Hot air is sent into one side of the air supply pipe 204, and the heated air sequentially passes through one side of the T-shaped pipe 202, the side air exchange holes 218, and the annular air inlet groove 216, and enters the space on one side inside the outer hollow drum 208, the middle hollow drum 209, and the inner hollow drum 210. Since the length of the third middle partition plate 225 is two-thirds of the length of the outer protection cylinder 207, after the hot air enters from one side of the third middle partition plate 225, it will bypass the top of the third middle partition plate 225 and enter the other side of the third middle partition plate 225, and is discharged into the filter box 222 through the annular air inlet groove 216, the other side air exchange holes 218, and the other side of the T-shaped pipe 202, and then returns to the air supply box 220 through the arc-shaped pipe 223 to complete the air circulation. In this way, the outer hollow drum 208, the middle hollow drum 209, and the inner hollow drum 210 are heated to heat and dry the crystallization mother liquor solid. The liquid is heated and evaporated for drying. The extrusion pressure relief valve 230 is pressed, and the excess mother liquor gas is discharged through the pressure relief valve 230. During the above drying process, the driving motor 215 is started, and the outer hollow drum 208, the middle hollow drum 209, and the inner hollow drum 210 connected to the rack 213 are driven to rotate slowly through the gear 214. The raw materials are further dispersed by the material distribution plate 211, and the air supply pump 221 is started intermittently, and the time interval is the time for the middle hollow drum 209 to rotate half a circle. In this way, it is ensured that the incoming air only enters from one side of the outer hollow drum 208, the middle hollow drum 209, and the inner hollow drum 210, is discharged from the other side and then recycled, and the drying process is completed.

[0058] During the above drying process, the raw materials are divided into multiple portions and separated to ensure uniform drying of the raw materials and prevent internal moisture, reducing the drying time. At the same time, drying multiple portions of raw materials together ensures the amount of drying during a single drying and separation operation, improving the drying efficiency while ensuring the drying effect. Since the rotation speeds of the outer hollow drum 208, the middle hollow drum 209, and the inner hollow drum 210 are independently controlled, the rotation speeds of the outer hollow drum 208, the middle hollow drum 209, and the inner hollow drum 210 can also be changed according to the different feeding amounts at each position, and the air supply frequency of the air supply pump 221 can be changed according to the temperature requirement to achieve the required drying effect.

[0059] After the preliminary drying is completed, the observation plates 229 are arranged on the same vertical line. Along the height of the adjustment vertical plate 319, the extrusion pipe 321 is aligned. The sliding seat 318 is pushed to slide along the sliding bayonet 317, and the extrusion pipe 321 extrudes the pressure relief valve 230 to open the end cover 312, and the vaporized high-temperature mother liquor is collected for recovery, reducing the waste of raw materials and preventing possible air pollution. Then, the observation plate 229 in the observation hole 228 is opened to check the drying condition. If the requirement is not met, continue drying until the drying is completed.

[0060] After drying is completed, adjust each feed port 231 to the downward position, and draw out the movable draw plate 226 in the feed port 231. Since the width of the material distribution plate 211 is small, most of the dried raw materials are not likely to accumulate on the material distribution plate 211. Slowly rotate the outer protective cylinder 207, the outer hollow rotating cylinder 208, and the middle hollow rotating cylinder 209 back and forth to discharge the remaining dried raw materials until the dried raw materials are discharged from the bottom material port 316 to complete the collection operation.

[0061] In summary, the partition drying assembly 2 separates the raw materials into multiple non-touching portions for simultaneous drying, ensuring both the drying efficiency and the drying effect. The auxiliary feeding and discharging assembly 3 disperses the raw materials during feeding, further improving the subsequent drying efficiency and collecting the excess gasification mother liquor, making the overall equipment more environmentally friendly and efficient.

[0062] Finally, it should be noted that the above are only preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A drying and separation device for preparing molecular sieve by circulating crystallization mother liquor, comprising a support frame (1), characterized in that: A partition drying component (2) is installed inside the support frame (1), and the partition drying component (2) includes a top limiting frame (201); Top limiting frames (201) are welded to the tops of both ends of the support frame (1). A T-shaped pipe (202) is fixedly installed at one end of the support frame (1). A first middle partition plate (203) is welded to the middle of the inside of the T-shaped pipe (202). An air supply pipe (204) is installed through the middle of the top end of the T-shaped pipe (202). An electric heating wire (205) is installed inside the T-shaped pipe (202). A bottom support plate (206) is welded to the bottom end of the support frame (1); An outer protection cylinder (207) is rotatably installed between the bottom support plate (206) and the top limiting frame (201) of the support frame (1). An outer hollow rotating cylinder (208) is rotatably embedded inside the outer protection cylinder (207). A middle hollow rotating cylinder (209) is rotatably embedded inside the outer hollow rotating cylinder (208). An inner hollow rotating cylinder (210) is rotatably embedded inside the middle hollow rotating cylinder (209). Material distribution plates (211) are evenly welded to the inner walls of the outer protection cylinder (207), the outer hollow rotating cylinder (208), and the middle hollow rotating cylinder (209). Support concentric rings (212) are welded to both ends of the outer hollow rotating cylinder (208), the middle hollow rotating cylinder (209), and the inner hollow rotating cylinder (210). Rack teeth (213) are fixedly installed on the inner edges of the support concentric rings (212) of the outer protection cylinder (207), the outer hollow rotating cylinder (208), and the middle hollow rotating cylinder (209). Gears (214) are meshed on both sides of the rack teeth (213), and the gears (214) are connected to the output shaft of a driving motor (215); Annular air inlet grooves (216) are opened in the middle of the support concentric rings (212) near one end of the T-shaped pipe (202). Support end rings (217) are rotatably embedded inside the annular air inlet grooves (216). The support end rings (217) are connected to the T-shaped pipe (202), and air exchange holes (218) are symmetrically opened in the support end rings (217); A second middle partition plate (219) is welded through the middle of the air supply pipe (204). A air supply box (220) is fixedly installed at one end of the second middle partition plate (219). An air supply pump (221) is installed through one end of the air supply box (220). A filter box (222) is fixedly installed at one end of the second middle partition plate (219). The bottom ends of the filter box (222) and the air supply box (220) are connected through an arc-shaped pipe (223).

2. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquor according to claim 1, wherein, Driving plates (224) are symmetrically welded to the other end of the support frame (1). The driving motors (215) are connected to the driving plates (224) through bolts.

3. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquor according to claim 2, wherein A third middle partition plate (225) is welded to the inner bottom ends of the outer hollow rotating cylinder (208), the middle hollow rotating cylinder (209), and the inner hollow rotating cylinder (210). Feed inlets (231) are provided at the tops of the outer protective cylinder (207), the outer hollow rotating cylinder (208), the middle hollow rotating cylinder (209), and the inner hollow rotating cylinder (210). An activity draw plate (226) is slidably and embeddedly installed inside the feed inlets (231). A heat insulation cylinder (227) is fixedly sleeved outside the outer hollow rotating cylinder (208). The outer side of the heat insulation cylinder (227) is a smooth curved surface and fits the bottom support plate (206) and the top limit frame (201). An observation hole (228) is provided at the top of the feed inlet (231) of the support concentric ring (212) close to the drive plate (224). An observation plate (229) is embedded inside the observation hole (228). A pressure relief valve (230) is embedded in the middle of the observation plate (229). The length of the third middle partition plate (225) is two-thirds of the length of the outer protective cylinder (207).

4. The drying and separation device for preparing molecular sieve by circulating crystallization mother liquor according to claim 3, characterized in that, The input ends of the electric heating wire (205), the drive motor (215), and the air supply pump (221) are respectively electrically connected to the output end of an external power supply. One end of the third middle partition plate (225) extends beyond the end face of the air supply pipe (204) and separates the air supply box (220) and the filter box (222).

5. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquor according to claim 3, characterized in that, Sealing rings (232) are embedded in the middle of the outer sides of the support concentric rings (212). The outer sides of the sealing rings (232) are slidably embedded in the inner walls of adjacent support concentric rings (212).

6. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquor according to claim 3, wherein, An auxiliary feeding and discharging assembly (3) is installed on the support frame (1). The auxiliary feeding and discharging assembly (3) includes a feeding fixed pipe (301). The top end of the top limit frame (201) is fixedly connected to the bottom end of the feeding fixed pipe (301). A top feeding port (302) is provided at the bottom end of the feeding fixed pipe (301). A feeding motor (303) is installed at one end of the feeding fixed pipe (301). The output shaft of the feeding motor (303) penetrates through the feeding fixed pipe (301) and is connected to a rotating plate (304). A feeding movable pipe (305) is hinged to one side of the feeding fixed pipe (301). A guiding port (306) is provided at the top end of the feeding movable pipe (305). A slider (307) is slidably installed inside the guiding port (306). A limit mounting plate (308) is welded at the bottom end of the slider (307) inside the feeding movable pipe (305). A rubber strip (309) is bonded to the bottom end of the limit mounting plate (308). A vibrating plate (310) is bonded to the bottom end of the rubber strip (309). A micro vibrating motor (311) is installed on one side of the vibrating plate (310). A limit clamping hole (313) is provided at one end of the feeding fixed pipe (301) close to the micro vibrating motor (311). The slider (307) is sleeved in the middle of a lead screw (314) through a screw hole. One end of the lead screw (314) is connected to a leveling motor (315). The two ends of the lead screw (314) respectively rotate through and are connected to the two top ends of the feeding movable pipe (305). A bottom base plate (206) is provided with a bottom material opening (316) on its bottom surface.

7. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquor according to claim 6, characterized in that, One end of the bottom base plate (206) is provided with a sliding bayonet (317). A sliding seat (318) is slidably clamped inside the sliding bayonet (317). One end of the sliding seat (318) is slidably clamped and installed with a vertical plate (319) near an observation plate (229). A pull handle (320) is welded in the middle of the vertical plate (319). An extrusion tube (321) is installed through the vertical plate (319) corresponding to the position of the observation plate (229). One end of the extrusion tube (321) is installed with an end cap (312).

8. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquor according to claim 6, characterized in that, The input end of the micro vibration motor (311) is electrically connected to the output end of an external power supply. The micro vibration motor (311) is in transitional fit with a limit card hole (313).

9. The drying and separation device for preparing molecular sieve by circulating crystallization mother liquor according to claim 6, wherein, The combined internal longitudinal section of the feeding fixed tube (301) and the feeding movable tube (305) is circular. The two side edges of the rotating plate (304) are attached to the inner walls of the feeding fixed tube (301) and the feeding movable tube (305).

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