Sublimation device
By introducing a reaction tank, a feeding structure and a stirring mechanism into the sublimation device, the problems of uneven heating and material accumulation in existing sublimation equipment are solved, and an efficient and low-cost sublimation process is achieved, which is suitable for different temperature conditions.
Patent Information
- Application Number
- CN202422890654.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-10-17
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Existing sublimation equipment has problems such as limited heating area, material accumulation, complex equipment, high processing technology requirements, and low heating efficiency. In particular, the selection of conveyor belt materials is limited under high temperature conditions.
The reaction tank, feeding structure and stirring mechanism are adopted. The reaction tank includes a tank body and a heat exchange jacket. The feeding structure sprays the material on the inner wall of the tank through a conveying pipe. The stirring mechanism ensures that the material is evenly heated through a stirring shaft and a scraper. Combined with flow detection and a draft mechanism, uniform spraying of the material and effective discharge of the gas are achieved.
It achieves uniform heating of materials, improves sublimation efficiency, reduces production costs and energy consumption, is suitable for different temperature conditions, has a simple structure and is easy to operate.
Smart Images
Figure CN223439202U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sublimer technical field especially relates to a sublimation device. BACKGROUND
[0002] Some substances have quite high vapor pressure in solid state, when heated, can directly become gaseous state without passing through liquid state, this process is called sublimation process. The sublimation process can be used to separate the sublimable substances from the non-sublimable substances, or separate the solid mixtures with different volatility; sublimation is also one of the methods for purifying solid substances, if the easily sublimable substances contain non-volatile impurities, the non-volatile impurities can be removed by sublimation, and higher purity products can be often obtained. The sublimation process is widely used in industry, and is more important in chemical and biological pharmaceutical industries,
[0003] The sublimation equipment on the market now mainly adopts screw extrusion sublimation or horizontal flat heating sublimation. For the screw extrusion sublimation device, the heating area is limited, the material has the accumulation phenomenon, and the equipment structure is complex, the processing technology requirement is high, and the cost is high. For the sublimation mode of the flat heating plate, for the fixed heating plate type equipment, the solid feed cannot be uniformly laid open; for the conveying belt type equipment, due to the material selection problem of the conveying belt, high temperature operation cannot be carried out, and only the material for low temperature sublimation can be used, and the heating efficiency is low.
[0004] Therefore, a sublimation device is needed to solve the above problems. UTILITY MODEL CONTENT
[0005] The utility model aims at providing a sublimation device, simple structure, low manufacturing cost, can be applicable to the sublimation of different temperature conditions, high heating efficiency.
[0006] In order to achieve this purpose, the utility model adopts the following technical scheme:
[0007] Provide a kind of sublimation device, comprising:
[0008] Reaction tank, the reaction tank includes tank body and heat exchange jacket, the heat exchange jacket is covered in the tank body, the tank body is formed sublimation cavity in, the tank body is provided with feed inlet and gas outlet;
[0009] Feed structure, the feed structure includes conveying pipe, the conveying pipe is worn in the feed inlet and is communicated with the sublimation cavity, the outlet of the conveying pipe is towards the side wall of the sublimation cavity and is provided;
[0010] Stirring mechanism, the stirring mechanism includes stirring shaft, first scraper and driving part, the driving part power connection is in the stirring shaft and the conveying pipe, the stirring shaft and the first scraper are located in the sublimation cavity, the first scraper is connected to the stirring shaft and is in abutment with the side wall of the sublimation cavity.
[0011] As an optional solution of the sublimation device, the stirring mechanism further comprises a connecting piece connected between the stirring shaft and the first scraper, and the angle between the projection of the conveying pipe and the projection of the connecting piece is 15-20 degrees in the projection plane perpendicular to the stirring shaft.
[0012] As an optional solution of the sublimation device, the first scraper has a spiral structure.
[0013] As an optional solution of the sublimation device, the feeding structure further comprises a flow detection piece, and the conveying pipe further comprises a first feeding pipe, and the flow detection piece is arranged in the first feeding pipe.
[0014] As an optional solution of the sublimation device, the feeding structure further comprises a storage bin, and the conveying pipe further comprises a second feeding pipe, and the second feeding pipe is communicated with the storage bin.
[0015] As an optional solution of the sublimation device, the feeding structure further comprises a first control valve, and the first control valve is connected to the second feeding pipe.
[0016] As an optional solution of the sublimation device, the bottom wall of the tank body is provided with a discharge port.
[0017] As an optional solution of the sublimation device, the stirring mechanism further comprises a second scraper, and the second scraper is arranged in the sublimation cavity and connected to the stirring shaft, and the second scraper abuts against the bottom wall of the sublimation cavity.
[0018] As an optional solution of the sublimation device, the sublimation device further comprises a material collecting mechanism, and the material collecting mechanism is correspondingly arranged below the discharge port.
[0019] As an optional solution of the sublimation device, the sublimation device further comprises an air guiding mechanism, and the air guiding mechanism is communicated with the air outlet.
[0020] The beneficial effects of the utility model are as follows:
[0021] The utility model provides a kind of sublimation device, including reaction tank, feed structure and stirring mechanism.Reaction tank includes jar body and heat exchange jacket, heat exchange jacket is covered in the outer surface of jar body, heat exchange medium is placed in heat exchange jacket, can heat jar body to the temperature required for sublimation reaction.Jar body is provided with feed inlet and gas outlet, gas outlet is exported after sublimation, and the outlet of conveying pipe of feed structure is set to the side wall of sublimation chamber, can be sprayed to the inner wall of jar body, material is attached on the inner wall of jar body and temperature rises to realize sublimation.Stirring mechanism includes stirring shaft, first scraper and driving part, driving part drives stirring shaft to rotate, and then drives first scraper to rotate, and the material that is not completely reacted and is attached on the side wall of sublimation chamber is cleaned, guarantee the cleanness of new material, can also reduce the influence of remaining material adsorbed in jar body on heating efficiency.Driving part can also drive conveying pipe to rotate, so that material can be evenly sprayed on the side wall of sublimation chamber, guarantee that material can be evenly heated, and then guarantee the production efficiency of the sublimation device.The sublimation device is simple in structure, low in manufacturing cost, low in maintenance cost in later period, easy to operate, can realize continuous production process, and heating efficiency is high, energy consumption is low, conducive to improving production efficiency and reducing production cost. BRIEF DESCRIPTION OF DRAWINGS
[0022] Fig. 1 It is the first structure schematic view of the sublimation device provided by the utility model;
[0023] Fig. 2 It is the second structure schematic view of the sublimation device provided by the utility model;
[0024] Fig. 3 It is the third structure schematic view of the sublimation device provided by the utility model.
[0025] In the drawing:
[0026] 100, reaction tank;110, jar body;111, sublimation chamber;112, feed inlet;113, gas outlet;114, discharge port;120, heat exchange jacket;
[0027] 200, feed structure;210, conveying pipe;211, outlet;212, first feeding pipe;213, second feeding pipe;220, flow detection piece;230, storage bin;240, first control valve;
[0028] 300, stirring mechanism;310, stirring shaft;320, first scraper;330, driving part;340, connecting piece;350, second scraper;
[0029] 400, material collecting mechanism;410, material collecting hopper;420, second control valve;
[0030] 500, air leading mechanism; 510, air fan; 520, air leading pipe. DETAILED DESCRIPTION
[0031] The utility model will be described in further detail below in connection with the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the utility model, but not to limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for the convenience of description, not all the structures.
[0032] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0033] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0034] In the description of the embodiment, the terms "up", "down", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in description, and have no special meaning.
[0035] As Figs. 1 to 3As shown, the sublimation device of the embodiment includes a reaction tank 100, a feeding structure 200 and a stirring mechanism 300. The reaction tank 100 includes a tank body 110 and a heat exchange jacket 120, the heat exchange jacket 120 is wrapped outside the tank body 110, the tank body 110 forms a sublimation cavity 111 inside, and the tank body 110 is provided with a feeding port 112 and a gas outlet 113. The feeding structure 200 includes a conveying pipe 210, the conveying pipe 210 is arranged in the feeding port 112 and communicates with the sublimation cavity 111, and the outlet 211 of the conveying pipe 210 is arranged towards the side wall of the sublimation cavity 111. The stirring mechanism 300 includes a stirring shaft 310, a first scraper 320 and a driving member 330, the driving member 330 is power-connected to the stirring shaft 310 and the conveying pipe 210, the stirring shaft 310 and the first scraper 320 are located in the sublimation cavity 111, and the first scraper 320 is connected to the stirring shaft 310 and abuts against the side wall of the sublimation cavity 111.
[0036] Based on the above design, the reaction tank 100 includes the tank body 110 and the heat exchange jacket 120, the heat exchange jacket 120 is wrapped outside the outer surface of the tank body 110, a heat exchange medium is placed in the heat exchange jacket 120, and the tank body 110 can be heated to the required temperature of the sublimation reaction. When the material to be sublimated is different, the heat exchange medium in the heat exchange jacket 120 can be replaced according to the different sublimation reaction temperatures, so as to improve the heating efficiency. For example, when the sublimation temperature is-15℃-7℃, the heat exchange medium can use glycol water; when the sublimation temperature is 7℃-80℃, the heat exchange medium can use desalted water; and when the heat exchange temperature is 80℃-200℃, the heat exchange medium can use heat-conducting oil.
[0037] The tank body 110 is provided with the feeding port 112 and the gas outlet 113, the gas outlet 113 is used for the outflow of the sublimated gas, and the gas outlet 113 can be externally connected to a collecting device for collecting the gas.
[0038] The conveying pipe 210 of the feeding structure 200 is arranged in the feeding port 112, and the outlet 211 of the conveying pipe 210 is arranged towards the side wall of the sublimation cavity 111, so as to be capable of spraying the feed to the inner wall of the tank body, and the material adheres to the inner wall of the tank body to achieve sublimation. In the embodiment, a nozzle is connected at the outlet 211, and the nozzle with a proper size can be selected according to the particle size of the solid material and the material feeding speed, so as to ensure that the material can adhere to the inner wall of the tank body 110, thereby ensuring the feeding effect of the feeding structure 200. As a preferred, the feeding structure 200 further includes a sealing ring, the sealing ring is sleeved on the conveying pipe 210 and sealingly connected to the feeding port 112, so as to ensure the sealing of the sublimation cavity 111.
[0039] The stirring mechanism 300 comprises a stirring shaft 310, a first scraper 320 and a driving member 330. The driving member 330 drives the stirring shaft 310 to rotate, and in turn drives the first scraper 320 to rotate, so as to clean the unreacted material attached to the sidewall of the sublimation chamber 111, ensure the cleanliness of the new material, and reduce the influence of the residual material adsorbed on the tank body 110 on the heating efficiency. The driving member 330 can also drive the conveying pipe 210 to rotate, so that the material can be uniformly sprayed on the sidewall of the sublimation chamber 111 with the rotation of the conveying pipe 210, so as to ensure that the material can be uniformly heated, and in turn ensure the production efficiency of the sublimation device. The sublimation device has simple structure, low manufacturing cost, high heating efficiency and low energy consumption, and is conducive to improving the production efficiency and reducing the production cost. In the embodiment, the driving member 330 is a motor and a speed reducer, both of which are existing products, and will not be described here.
[0040] Further, the conveying pipe 210 further comprises a first feeding pipe 212 and a second feeding pipe 213. The first feeding pipe 212 and the second feeding pipe 213 are both in communication with the outlet 211. The first feeding pipe 212 is used for feeding the gaseous material for sublimation reaction into the sublimation chamber 111. The gas can be a protective gas to prevent the material from decomposing, or an inert gas as a carrier gas for sublimation reaction. The inlet temperature can be adjusted according to the temperature requirement, and the inlet pressure ranges from 2 to 6 bar(A). The second feeding pipe 213 is used for conveying the solid material to be sublimated into the sublimation chamber 111. By arranging the first feeding pipe 212 and the second feeding pipe 213, the gaseous material and the solid material can be conveyed separately, the use amount and sequence of different materials can be controlled, and the progress of the sublimation reaction can be easily controlled.
[0041] As a preferred embodiment, the feeding structure 200 further comprises a flow detection member 220 connected to the first feeding pipe 212, which is used for detecting the flow of the gas conveyed by the first feeding pipe 212 into the sublimation chamber 111, so as to calculate the gas pressure in the sublimation chamber 111 and control the gas pressure in the sublimation chamber 111 within a reasonable range, so as to ensure the effect of the sublimation reaction and the safety of the tank body 110. In the embodiment, the flow detection member 220 is a Venturi tube arranged in the first feeding pipe 212. The Venturi tube is a pipe that is first contracted and then gradually expanded. The pressure difference at the inlet cross section and the minimum cross section is measured, and the flow can be calculated by using Bernoulli's theorem.
[0042] As a preferred embodiment, the feeding structure 200 further comprises a storage bin 230 and a first control valve 240. The second feeding pipe 213 is in communication with the storage bin 230, and the storage bin 230 is used for storing the solid material. The first control valve 240 is connected to the second feeding pipe 213 and is used for controlling the opening or closing of the second feeding pipe 213. As an example, the first control valve 240 can be a star-shaped discharge valve, and the frequency conversion motor can be used to adjust the appropriate feeding speed.
[0043] Further, the stirring mechanism 300 further comprises a connecting piece 340 connected between the stirring shaft 310 and the first scraper 320. The stirring shaft 310 drives the conveying pipe 210 and the first scraper 320 to move in the same direction and make circumferential motion. Before spraying, the first scraper 320 scrapes the material that may not have completely sublimed and adheres to the inner wall of the tank 110 and accumulates under the sublimation cavity 111, and then makes the newly sprayed material uniformly sprayed on the inner wall of the tank 110 for the next round of sublimation.
[0044] Preferably, the contact surface between the side wall of the sublimation cavity 111 and the first scraper 320 has a surface roughness Ra≤0.4, which prevents the size of the pit defects of the metal surfaces of the sublimation cavity 111 and the first scraper 320 from being too large, thereby affecting the sublimation efficiency.
[0045] It should be noted that, in the rotation direction of the stirring shaft 310, the outlet 211 of the conveying pipe 210 is located behind the connecting piece 340 and the first scraper 320, so as to ensure that the first scraper 320 can clean the inner wall of the tank 110 before the conveying pipe 210 sprays the material.
[0046] Optionally, in the projection plane perpendicular to the stirring shaft 310, the angle between the projection of the conveying pipe 210 and the projection of the connecting piece 340 is 15°-20°, which ensures that the material has sufficient sublimation reaction time on the inner wall of the tank 110, ensures the cleaning effect of the first scraper 320 on the inner wall of the tank 110, and at the same time avoids the waste caused by the nozzle spraying the material onto the first scraper 320 and the connecting piece 340. Illustratively, the angle between the projection of the conveying pipe 210 and the projection of the connecting piece 340 is 15°, 16°, 17°, 18°, 19°, or 20°.
[0047] Optionally, the first scraper 320 has a spiral structure, which reduces the resistance received by the first scraper 320 and makes it more convenient to remove the un-sublimed material.
[0048] Further, the bottom wall of the tank 110 is provided with a discharge port 114. After the material scraped by the first scraper 320 accumulates at the bottom of the sublimation cavity 111, it can flow out from the discharge port 114.
[0049] Optionally, the stirring mechanism 300 further comprises a second scraper 350, which is arranged in the sublimation cavity 111 and connected to the stirring shaft 310, and abuts against the bottom wall of the sublimation cavity 111. The stirring shaft 310 can drive the second scraper 350 to rotate, thereby pushing the material at the bottom of the sublimation cavity 111 to the discharge port 114, and realizing the cleaning of the material.
[0050] Further, the sublimation device further comprises a material collecting mechanism 400, which is correspondingly arranged below the discharge port 114 and used for collecting the material cleaned out by the discharge port 114. Specifically, the material collecting mechanism 400 comprises a material collecting hopper 410 and a second control valve 420, the opening of the material collecting hopper 410 is communicated with the discharge port 114 and used for collecting the material, and the second control valve 420 is connected to the material collecting hopper 410 and used for opening or closing the material collecting mechanism 400.
[0051] Further, the sublimation device further comprises an air guiding mechanism 500, which is communicated with the gas outlet 113 and used for discharging the gas in the sublimation cavity 111 and improving the collection efficiency of the gas. Specifically, the air guiding mechanism 500 comprises a fan 510 and an air guiding pipe 520, the air guiding pipe 520 is communicated with the gas outlet 113, and the fan 510 is connected to the air guiding pipe 520 and used for inhaling the gas from the gas outlet 113 to the air guiding pipe 510.
[0052] Next, the use method of the sublimation device is described by taking the sublimation purification of the solid pentanediamine carbonate as an example.
[0053] Firstly, the CO2 is introduced into the first feeding pipe 212, the gas temperature is 120 DEG C, the pressure is 3 bar (A), and the gas pressure in the sublimation cavity 111 reaches 80 kPa (A) until the gas flow is 72 m 3 ;
[0054] Secondly, the heat exchange medium is added into the heat exchange jacket 120, and the heat exchange medium is 140 DEG C heat conducting oil.
[0055] Thirdly, the driving member 330 is opened, the temperature, pressure and stirring operation of the tank body 110 are checked, and the stirring speed is determined as 150 r / min.
[0056] Fourthly, the first control valve 240 and the air guiding mechanism 500 are opened, the sublimation rate of the gas outlet 113 is observed, and the solid feeding rate is adjusted as 100 kg / h.
[0057] Fifthly, the material collecting device 400 is opened to collect the solid material.
[0058] Obviously, the above embodiments of the present application are merely illustrative, and are not intended to limit the embodiments of the present application. Based on the above description, those skilled in the art can make other different forms of changes or modifications. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A sublimation device, characterized in that: include: A reaction tank (100), the reaction tank (100) comprising a tank body (110) and a heat exchange jacket (120), the heat exchange jacket (120) being coated on the outside of the tank body (110), a sublimation chamber (111) being formed in the tank body (110), and the tank body (110) being provided with a feed port (112) and an air outlet (113); A feeding structure (200), the feeding structure (200) comprising a delivery pipe (210), the delivery pipe (210) being arranged through the feeding port (112) and communicating with the sublimation chamber (111), the outlet (211) of the delivery pipe (210) being arranged toward the side wall of the sublimation chamber (111); A stirring mechanism (300) comprises a stirring shaft (310), a first scraper (320) and a driving member (330), wherein the driving member (330) is dynamically connected to the stirring shaft (310) and the delivery pipe (210), the stirring shaft (310) and the first scraper (320) are located in the sublimation chamber (111), and the first scraper (320) is connected to the stirring shaft (310) and abuts against a side wall of the sublimation chamber (111).
2. The sublimation device according to claim 1, characterized in that The stirring mechanism (300) further comprises a connecting member (340), wherein the connecting member (340) is connected between the stirring shaft (310) and the first scraper (320), and an angle between a projection of the conveying pipe (210) and a projection of the connecting member (340) on a projection plane perpendicular to the stirring shaft (310) is 15°-20°.
3. The sublimation device according to claim 1, characterized in that The first scraper (320) has a spiral structure.
4. The sublimation device according to claim 1, characterized in that The feeding structure (200) further includes a flow detection component (220), the delivery pipe (210) includes a first feeding pipe (212), and the flow detection component (220) is connected to the first feeding pipe (212).
5. The sublimation device according to claim 1, characterized in that The feeding structure (200) further includes a storage bin (230), and the delivery pipe (210) further includes a second feeding pipe (213), wherein the second feeding pipe (213) is connected to the storage bin (230).
6. The sublimation device according to claim 5, characterized in that The feeding structure (200) further comprises a first control valve (240), wherein the first control valve (240) is connected to the second feeding pipe (213).
7. The sublimation device according to claim 1, characterized in that A discharge port (114) is provided on the bottom wall of the tank body (110).
8. The sublimation device according to claim 7, characterized in that The stirring mechanism (300) further includes a second scraper (350), which is disposed in the sublimation chamber (111) and connected to the stirring shaft (310), and the second scraper (350) abuts against the bottom wall of the sublimation chamber (111).
9. The sublimation device according to claim 7, characterized in that The sublimation device further comprises a material receiving mechanism (400), and the material receiving mechanism (400) is correspondingly arranged below the material outlet (114).
10. The sublimation device according to claim 1, characterized in that The sublimation device further comprises an air induction mechanism (500), and the air induction mechanism (500) is connected to the air outlet (113).