Drying and separating equipment for preparing molecular sieve by circulating crystallization mother liquor

Abstract

The invention discloses drying and separating equipment for preparing molecular sieves through crystallization mother liquor circulation, and relates to the technical field of drying and separating. A separating and drying assembly is installed in a supporting frame, a T-shaped pipe is fixedly installed at one end of the supporting frame, an air supply pipe penetrates through the middle of the top end of the T-shaped pipe, and a bottom supporting plate is welded to the bottom end of the supporting frame; the crystallization mother liquor solid drying device comprises an outer hollow rotary drum, a middle hollow rotary drum and an inner hollow rotary drum, supporting concentric rings are welded to the two ends of the outer hollow rotary drum, the two ends of the middle hollow rotary drum and the two ends of the inner hollow rotary drum respectively, and an auxiliary feeding and discharging assembly is installed on a supporting frame. The crystallization mother liquor solid to be dried exists between the middle hollow rotary drum and the inner hollow rotary drum, between the outer hollow rotary drum and the middle hollow rotary drum and between the outer protective drum and the outer hollow rotary drum; hot air is fed and circulated through the air feeding pipe, raw materials are divided into multiple parts and separated, it is guaranteed that the raw materials are evenly dried, the interiors of the raw materials are not prone to moisture, the drying time is shortened, the multiple parts of raw materials are dried at the same time, the drying efficiency is improved, and meanwhile the drying effect is guaranteed.

Description

Technical Field

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

[0002] Molecular sieve is a crystalline compound with a specific pore size distribution. There are various synthesis methods for molecular sieve. One typical synthesis method includes the following steps: after uniformly stirring the prepared initial gel mixture, crystallization is carried out to obtain a precrystallized liquid. Then, the prepared precrystallized 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 continuously subjected to vacuum filtration separation, cooled, filtered to remove the molecular sieve mother liquor, 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 condensation 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 high. When directly dried by the above drying device, the solids are prone to accumulate, making it difficult to dry the internal liquid, resulting in a long drying time and uneven drying. It is necessary to dry 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 art that the solids are prone to accumulate, making it difficult to dry the internal liquid, resulting in a long drying time and uneven drying, and it is necessary to dry in small amounts and multiple times, resulting in low drying efficiency.

[0006] To achieve the above object, 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. The partition drying component includes a top limiting frame; 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 plate 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; An outer protective cylinder is rotatably installed at the position between the bottom support plate and the top limit frame of the support 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. The inner walls of the outer protective cylinder, the outer hollow rotating cylinder and the middle hollow rotating cylinder are evenly welded with material distribution plates. Support concentric rings are welded at 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 the rack bars, and the gears are connected to the output shafts of the driving motors.

[0007] According to the above technical solution, annular air inlet grooves are respectively opened 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 opened in the support end rings; 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.

[0008] According to the above technical solution, driving plates are symmetrically welded at the other end of the support frame, and the driving motors are respectively connected to the driving plates through bolts.

[0009] According to the above technical solution, third middle partition plates are welded at the inner bottom ends of the outer hollow rotating cylinder, the middle hollow rotating cylinder and the inner hollow rotating cylinder. Feeding ports are opened 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 limit frame; Observation holes are opened 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.

[0010] According to the above technical solution, the input ends of the electric heating wires, the driving motors and the air supply pumps are respectively electrically connected to the output end of an external power supply; 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.

[0011] According to the above technical solution, sealing rings are respectively embedded in the middle parts of the outer sides of the support concentric rings, and the outer sides of the sealing rings are movably embedded inside the inner walls of adjacent support concentric rings.

[0012] 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; The top end of the top limiting frame is fixedly connected to the bottom end of the feeding fixed pipe. A top feeding port is opened 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; One side of the feeding fixed pipe is hinged to a feeding movable pipe. A guiding port is opened at the top end of the feeding movable pipe. A sliding block is slidably installed inside the guiding port. A limiting mounting plate is welded at the bottom end of the sliding block inside the feeding movable pipe. A rubber strip is adhered to the bottom end of the limiting mounting plate. A vibrating plate is adhered 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 opened at one end of the feeding fixed pipe near the micro-vibrating motor. The sliding block 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; A bottom feeding port is opened on the bottom surface of the bottom support plate.

[0013] According to the above technical solution, a sliding clamping port is opened at one end of the bottom support plate. A sliding seat is slidably clamped inside the sliding clamping port. 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 penetrated and installed at the position of the vertical plate corresponding to the observation plate. An end cover is installed at one end of the extrusion pipe.

[0014] 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 transitional fit with the limiting clamping hole.

[0015] 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.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. A partition drying assembly 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 materials enter 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 draw plate. Repeat the above feeding steps until there are crystallization mother liquor solids 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 materials into multiple portions and separating them, and heating and drying at the separated positions. The drying air does not directly contact the raw materials, avoiding the introduction of new impurities, ensuring uniform drying of the raw materials and preventing internal moisture, reducing the drying time. And 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.

[0017] 2. An auxiliary feeding and discharging assembly is provided. The filtered solid of the crystallized mother liquor 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. The micro vibration motor is started. When the vibrating plate vibrates and passes through the piled solid of the crystallized mother liquor, it will continuously level the piled material until the solid of the crystallized mother liquor is evenly distributed on the top surface of the rotating plate. Uniformly distributing the solid of the crystallized mother liquor before feeding will make it easier to disperse during drying and improve the subsequent drying effect. After the preliminary drying is completed, open the end cover to collect the vaporized high-temperature mother liquor for recycling, reduce the waste of raw materials, and at the same time prevent 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. In summary, the partition drying assembly separates the raw materials into multiple non-contact portions for drying simultaneously, ensuring both the drying efficiency and the drying effect. The auxiliary feeding and discharging assembly disperses the raw materials 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

[0018] The drawings are used to provide a 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.

[0019] In the drawings: Figure 1 is a schematic structural diagram of the present invention; Figure 2 is of the present invention Figure 1 schematic structural diagram of area A; Figure 3 is a schematic structural diagram of the partition drying assembly of the present invention; Figure 4 is a schematic installation structure diagram of the T-shaped pipe of the present invention; Figure 5 is a schematic installation structure diagram of the support end ring of the present invention; Figure 6 is a schematic installation structure diagram of the support concentric ring of the present invention; Figure 7 is a schematic installation structure diagram of the rack of the present invention; Figure 8 is a schematic installation structure diagram of the material distribution plate of the present invention; Figure 9 is a schematic installation structure diagram of the third middle partition plate of the present invention; Figure 10 is a schematic structural diagram of the auxiliary feeding and discharging assembly of the present invention; Figure 11It is a schematic diagram of the installation structure of the rotating plate of the present invention; Figure 12 It is the present invention Figure 11 Schematic diagram of the structure of area B; Reference numerals in the figure: 1, support frame; 2, partition drying assembly; 201, top limit frame; 202, T-shaped pipe; 203, first middle partition board; 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, drive motor; 216, annular air inlet groove; 217, support end ring; 218, air exchange hole; 219, second middle partition board; 220, air supply box; 221, air supply pump; 222, filter box; 223, arc-shaped pipe; 224, drive plate; 225, third middle partition board; 226, movable extraction plate; 227, heat insulation cylinder; 228, observation hole; 229, observation plate; 230, pressure relief valve; 231, feed inlet; 232, sealing ring; 3, auxiliary feeding and discharging assembly; 301, feeding fixed pipe; 302, top material port; 303, feeding motor; 304, rotating plate; 305, feeding movable pipe; 306, guiding port; 307, slider; 308, limit mounting plate; 309, rubber strip; 310, vibrating plate; 311, micro-vibrating motor; 312, end cover; 313, limit clamping hole; 314, lead screw; 315, leveling motor; 316, bottom material port; 317, sliding clamping port; 318, sliding seat; 319, vertical plate; 320, pull handle; 321, extrusion pipe. Specific embodiments

[0020] The following is a description of the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustration and explanation of the present invention, and are not used to limit the present invention.

[0021] Embodiment: As Figures 1-12As shown in the figure, the present invention provides a technical solution for a drying and separation device for preparing molecular sieve by circulating crystallization mother liquor, including a support frame 1. Inside the support frame 1, a partition drying component 2 is installed. The partition drying component 2 includes a top limit frame 201, a T-shaped pipe 202, a first middle partition board 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 board 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 board 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; At the top of both ends of the support frame 1, a top limit frame 201 is 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 board 203 is welded. In the middle of the top 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; Between the bottom support plate 206 and the top limit frame 201 of the support frame 1, an outer protection cylinder 207 is rotatably installed. Inside the outer protection cylinder 207, an outer hollow rotating cylinder 208 is rotatably embedded. Inside the outer hollow rotating cylinder 208, a middle hollow rotating cylinder 209 is rotatably embedded. Inside the middle hollow rotating cylinder 209, an inner hollow rotating cylinder 210 is rotatably embedded. On the inner walls of the outer protection cylinder 207, the outer hollow rotating cylinder 208 and the middle hollow rotating cylinder 209, material distribution plates 211 are evenly welded. At both ends of the outer hollow rotating cylinder 208, the middle hollow rotating cylinder 209 and the inner hollow rotating cylinder 210, support concentric rings 212 are welded. On the inner side edges of the support concentric rings 212 of the outer protection cylinder 207, the outer hollow rotating cylinder 208 and the support concentric ring 212 of the middle hollow rotating cylinder 209, racks 213 are fixedly installed. On both sides of the rack 213, gears 214 are engaged. The gears 214 are connected to the output shaft of the driving motor 215; In the middle of the support concentric ring 212 near one end of the T-shaped pipe 202, annular air inlet grooves 216 are provided. Inside the annular air inlet grooves 216, support end rings 217 are rotatably and embeddedly installed. In the middle of the outer side of the support concentric ring 212, sealing rings 232 are inlaid. The outer sides of the sealing rings 232 are movably embedded in the inner walls of the adjacent support concentric rings 212 to improve the sealing effect at the rotating connection and reduce the overflow of gas. The support end ring 217 is connected to the T-shaped pipe 202. The support end ring 217 is 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 a driving plate 224. The driving motors 215 are all bolted to the driving plate 224. 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 welded. At the top ends 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, feeding ports 231 are provided. 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 support concentric ring 212 near the driving plate 224, an observation hole 228 is provided. 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 protective cylinder 207 to facilitate the circulation of air and ensure the heating and drying effect.

[0022] The support frame 1 is equipped 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 slider 307, a limit installation 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 material port 316, a sliding clamping opening 317, a sliding seat 318, a vertical plate 319, a pull handle 320, and an extrusion pipe 321; 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. One side of the feeding fixed pipe 301 is hinged and connected 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 being combined. 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 as to close the middle part of the feeding fixed pipe 301 when the rotating plate 304 is horizontal. 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. 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 pulling 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.

[0023] Working principle and usage process of the present invention: Open the feeding movable pipe 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 pipe 301. Close the feeding movable pipe 305 so that the feeding movable pipe 305 and the feeding fixed pipe 301 are recombined into a cylinder. Start the leveling motor 315. The leveling motor 315 drives the slider 307 to reciprocate along the guiding port 306 through the lead screw 314. After repeating several times, the vibrating plate 310 fits against the inner end face of the feeding fixed pipe 301, and the micro-vibrating motor 311 is embedded in the limit card 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 crystallized mother liquor solid, it will continuously level the piled material until the crystallized mother liquor solid is evenly distributed on the top surface of the rotating plate 304. Uniformly distributing the crystallized mother liquor solid before feeding will also make it easier to disperse during drying, improving the subsequent drying effect.

[0024] 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 pipe 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 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.

[0025] 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 air vent holes 218 on one side, and the annular air inlet groove 216, and enters the space on one side inside the outer hollow rotating cylinder 208, the middle hollow rotating cylinder 209, and the inner hollow rotating cylinder 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 air vent holes 218 on the other side, 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 rotating cylinder 208, the middle hollow rotating cylinder 209, and the inner hollow rotating cylinder 210 are heated to heat and dry the crystallized 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 rotating cylinder 208, the middle hollow rotating cylinder 209, and the inner hollow rotating cylinder 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 rotating cylinder 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 rotating cylinder 208, the middle hollow rotating cylinder 209, and the inner hollow rotating cylinder 210, is discharged from the other side and then recirculated into it to complete the drying process.

[0026] 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 rotating cylinder 208, the middle hollow rotating cylinder 209, and the inner hollow rotating cylinder 210 are independently controlled, the rotation speeds of the outer hollow rotating cylinder 208, the middle hollow rotating cylinder 209, and the inner hollow rotating cylinder 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.

[0027] After the preliminary drying is completed, the observation plates 229 are arranged on the same vertical line. The height of the adjustment vertical plate 319 is adjusted to align the extrusion pipe 321. 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 recycling, 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.

[0028] After drying is completed, adjust each feed inlet 231 to the downward position, and draw out the movable draw plate 226 in the feed inlet 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 reciprocally to discharge the remaining dried raw materials until the dried raw materials are discharged from the bottom material outlet 316, thus completing the collection operation.

[0029] In summary, the partition drying assembly 2 partitions 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 vaporized mother liquor, making the overall equipment more environmentally friendly and efficient.

[0030] 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, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, 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 sieves by circulating a crystallization mother liquid, 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) comprises a top limiting frame (201); Top limit frames (201) are welded to the tops of both ends of the support frame (1); a T-shaped tube (202) is fixedly mounted on 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 tube (202); an air supply pipe (204) is installed through the middle of the top of the T-shaped tube (202); a heating wire (205) is installed inside the T-shaped tube (202); and a bottom support plate (206) is welded to the bottom end of the support frame (1); The support frame (1) is rotatably mounted with an outer protective cylinder (207) between the bottom support plate (206) and the top limit frame (201); an outer hollow rotating cylinder (208) is rotatably embedded inside the outer protective cylinder (207); a 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 hollow rotating cylinder (209); and the inner walls of the outer protective cylinder (207), the outer hollow rotating cylinder (208) and the hollow rotating cylinder (209) are uniformly welded with a material distributor. The outer hollow rotating cylinder (208), the inner hollow rotating cylinder (209) and the inner hollow rotating cylinder (210) are welded with supporting concentric rings (212) at both ends; the inner edges of the supporting concentric rings (212) of the outer protective cylinder (207), the outer hollow rotating cylinder (208) and the inner hollow rotating cylinder (209) are fixedly mounted with racks (213); gears (214) are meshed on both sides of the racks (213); and the gears (214) are connected to the output shaft of the driving motor (215).

2. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquid according to claim 1, characterized in that: An annular air inlet groove (216) is provided in the middle of each of the supporting concentric rings (212) near one end of the T-shaped tube (202), and a supporting end ring (217) is rotatably embedded and installed inside each of the annular air inlet grooves (216). The supporting end ring (217) is connected to the T-shaped tube (202), and the supporting end ring (217) is symmetrically provided with air exchange holes (218); A second middle partition plate (219) is welded through the middle of the air supply pipe (204); an air supply box (220) is fixedly mounted on 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 mounted on one end of the second middle partition plate (219); and the bottom ends of the filter box (222) and the air supply box (220) are connected via an arc-shaped tube (223).

3. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquid according to claim 2, characterized in that: A drive plate (224) is symmetrically welded to the other end of the support frame (1), and the drive motors (215) are connected to the drive plate (224) via bolts.

4. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquid according to claim 3, characterized in that: The inner bottom ends of the outer hollow rotating cylinder (208), the inner hollow rotating cylinder (209) and the inner hollow rotating cylinder (210) are all welded with a third middle partition plate (225); the top ends of the outer protective cylinder (207), the outer hollow rotating cylinder (208), the inner hollow rotating cylinder (209) and the inner hollow rotating cylinder (210) are all provided with a feed port (231); a movable draw plate (226) is slidably embedded in the feed port (231); the outer side of the outer hollow rotating cylinder (208) is fixedly sleeved with a heat insulating cylinder (227); the outer side of the heat insulating 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 port (231) of the supporting concentric ring (212) close to the driving plate (224), an observation plate (229) is embedded in the observation hole (228), a pressure relief valve (230) is embedded in the middle of the observation plate (229), and the length of the third intermediate partition plate (225) is two-thirds of the length of the outer protective tube (207).

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

6. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquid according to claim 4, characterized in that: A sealing ring (232) is inlaid in the middle of the outer side of each of the supporting concentric rings (212), and the outer side of the sealing ring (232) is movably embedded in the inner wall of the adjacent supporting concentric ring (212).

7. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquid according to claim 4, characterized in that: The support frame (1) is equipped with an auxiliary material inlet and outlet assembly (3), and the auxiliary material inlet and outlet assembly (3) comprises a fixed feed pipe (301); The top end of the top limiting frame (201) is fixedly connected to the bottom end of the feed fixed tube (301), the bottom end of the feed fixed tube (301) is provided with a feed opening (302), one end of the feed fixed tube (301) is provided with a feed motor (303), the output shaft of the feed motor (303) passes through the feed fixed tube (301) and is connected to a rotating plate (304); One side of the fixed feed tube (301) is hingedly connected to a movable feed tube (305); a guide opening (306) is provided at the top of the movable feed tube (305); a slider (307) is slidably mounted inside the guide opening (306); a limit mounting plate (308) is welded to the bottom end of the slider (307) inside the movable feed tube (305); a rubber strip (309) is bonded to the bottom end of the limit mounting plate (308); and a rubber strip (309) is bonded to the bottom end of the rubber strip (309). A vibration plate (310) is provided, a micro vibration motor (311) is installed on one side of the vibration plate (310), a limit clamping hole (313) is provided at one end of the feed fixed tube (301) near the micro vibration motor (311), the slider (307) is sleeved on the middle part of the screw rod (314) through a screw hole, one end of the screw rod (314) is connected to the leveling motor (315), and the two ends of the screw rod (314) are respectively rotated to penetrate the two ends of the top of the feed movable tube (305); The bottom surface of the bottom supporting plate (206) is provided with a bottom material opening (316).

8. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquid according to claim 7, characterized in that: A sliding slot (317) is provided at one end of the bottom support plate (206), and a sliding seat (318) is slidably engaged inside the sliding slot (317). A vertical plate (319) is slidably engaged at one end of the sliding seat (318) near the observation plate (229), and a handle (320) is welded at the middle of the vertical plate (319). An extrusion tube (321) is installed through the vertical plate (319) at a position corresponding to the observation plate (229), and an end cover (312) is installed at one end of the extrusion tube (321).

9. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquid according to claim 7, characterized in that: The input end of the micro-vibration motor (311) is electrically connected to the output end of the external power supply, and the micro-vibration motor (311) and the limit clamping hole (313) are transitionally matched.

10. The drying and separation equipment for preparing molecular sieve by circulating crystallization mother liquid according to claim 7, characterized in that: The internal longitudinal section of the fixed feeding tube (301) and the movable feeding tube (305) is circular after being combined, and the edges on both sides of the rotating plate (304) fit the inner walls of the fixed feeding tube (301) and the movable feeding tube (305).

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