Crystallization and purification equipment for Y-type molecular sieve
By designing a crystal purification equipment of Y-type molecular sieve including a drying chamber, a gas heater, a barrel and a transfer chamber, the problems of insufficient drying of the molecular sieve and low air purification efficiency of the equipment are solved, and a more efficient molecular sieve purification process is achieved.
Patent Information
- Application Number
- CN202422180660.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-05
AI Technical Summary
The Y-type molecular sieve is not dry enough during the drying and purification process, and additional air in the purification equipment is required, resulting in low working efficiency of the purification equipment.
A crystal purification device including a Y-type molecular sieve including a drying chamber, a gas heater, a barrel and a transfer chamber is designed. The dirty nitrogen is heated through a gas heater and a drying cycle is carried out through a circulation pump and a gas dryer in the drying chamber to ensure that the molecular sieve is fully dry. At the same time, dirt nitrogen is extracted through the relay chamber and the negative pressure tube to prevent air impurities from entering the drying chamber.
The Y-type molecular sieve is fully dried, the purity of the molecular sieve is improved, and the working efficiency of the purification equipment is improved by purifying air impurities.
Smart Images
Figure CN222993443U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field related to the production of molecular sieves, and particularly relates to a crystallization and purification device for Y-type molecular sieves. Background Technique
[0002] The Y-type molecular sieve is a FAU-structured molecular sieve with a silica-alumina ratio of 1.5 to 3. It has good thermal stability, a relatively large pore diameter, a high silica-alumina ratio, excellent adsorption properties, and a large specific surface area. The pore diameter of the Y-type molecular sieve is approximately 0.74 nm. This characteristic enables it to have a wide range of applications in the fields of environmental protection, petrochemical industry, etc. After the production and treatment of the molecular sieve, it needs to be dried by a crystallization and purification device to remove the water in the molecular sieve and increase the purity of the molecular sieve. However, it still has the following disadvantages in actual use:
[0003] 1. When the Y-type molecular sieve is dried and purified, the molecular sieve is directly transported into the purification device. During the operation process, it is directly heated, and the air flow is blown onto the molecular sieve, or the molecular sieve is contained in a container and then blown by the air flow. It is easy to cause insufficient drying, which affects the purity of the finally prepared molecular sieve.
[0004] 2. During the processing of the Y-type molecular sieve, the purification device needs to be opened, and then the molecular sieve is put in. Subsequently, during the work, the molecular sieve is placed in the case of contaminated nitrogen gas, and after drying, the molecular sieve also needs to be taken out, resulting in air entering the purification device. It is necessary to additionally purify the air in the purification device, resulting in low working efficiency of the purification device. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a crystallization and purification device for Y-type molecular sieves. By setting a drying chamber, a gas heater, a material cylinder, and a transfer chamber, the problems that the Y-type molecular sieve is prone to insufficient drying and the air in the purification device needs to be additionally purified, resulting in low working efficiency of the purification device are solved.
[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:
[0007] The utility model relates to a crystallization purification device for Y-type molecular sieve, which includes a drying chamber, a gas heater, a material cylinder and a transfer chamber. A fixing ring is fixed on the inner wall of the drying chamber. A material cylinder is fixedly penetrated in the fixing ring. A conical net is fixed at the bottom end of the material cylinder. A concentrated hopper is fixed at the bottom end of the drying chamber. Transfer chambers are arranged below the concentrated hopper and above the drying chamber. A gas heater is arranged on one side of the drying chamber. A circulating pump is fixed at the top end of the gas heater. The output end of the circulating pump is fixedly communicated with the gas heater. A gas dryer is fixed at the top end of the circulating pump. The output end of the circulating pump is fixedly connected to the input end of the gas dryer. During operation, the molecular sieve material passing through the drying chamber is dried, the waste nitrogen gas passing through the gas heater is heated, so that the waste nitrogen gas can dry the molecular sieve material more quickly during the process of circulating in the drying chamber. The molecular sieve material entering the material cylinder is concentrated in the conical net, and the material is transferred through the transfer chamber to prevent air impurities from being brought into the waste nitrogen gas in the drying chamber when the material is input into the drying chamber.
[0008] Further, the output end of the gas heater is fixedly communicated with a circulating pipe, and the input end of the gas dryer is fixedly communicated with an input pipe. The gas heater transports the heated waste nitrogen gas therein to the drying chamber through the circulating pipe, and the gas dryer inputs the waste nitrogen gas in the drying chamber into it through the input pipe.
[0009] Further, one end of the circulating pipe away from the gas heater is fixedly communicated with the periphery of the drying chamber below the fixing ring, and one end of the input pipe away from the gas dryer is fixedly communicated with the periphery of the drying chamber above the fixing ring. The circulating pipe and the input pipe are both communicated with the drying chamber to carry out the circulation of waste nitrogen gas.
[0010] Further, a delivery pipe is fixedly communicated with the bottom end of the conical net, and an electric control valve I is fixed on the periphery of the delivery pipe. The conical net transports the molecular sieve material therein through the delivery pipe.
[0011] Further, a fixing hole is opened at the center of the top end of the drying chamber. The discharge pipe at the bottom end of the transfer chamber above the drying chamber is fixed in the fixing hole. The feed pipe is fixedly communicated with the center of the top end of the transfer chamber. The feed pipe at the top end of the transfer chamber below the drying chamber is fixedly communicated with the bottom end of the concentrated hopper. Electric control valves II are fixed on the peripheries of the discharge pipe and the feed pipe. The drying chamber fixes the discharge pipe through the fixing hole, and the on-off of the discharge pipe and the feed pipe are both controlled by the electric control valves II.
[0012] Further, a negative pressure pipe is fixedly communicated with the front part of the top end of the transfer chamber above the drying chamber, and a gas supplement pipe is fixedly communicated with the top end of the transfer chamber on one side of the negative pressure pipe. The drying chamber is communicated with the device for extracting waste nitrogen gas through the negative pressure pipe, and waste nitrogen gas is supplemented into the drying chamber through the gas supplement pipe.
[0013] The utility model has the following beneficial effects:
[0014] 1. By setting up a drying chamber and a gas heater, the utility model solves the problem that Y-type molecular sieves are prone to insufficient drying. When the circulation pump is started, the waste nitrogen gas in the drying chamber is transported to the gas dryer through the input pipe. After being dried by the gas dryer, it is transported to the gas heater by the circulation pump. After being heated by the gas heater, it is transported to the lower part of the drying chamber through the circulation pipe. At this time, the waste nitrogen gas rises, passes through the conical mesh, dries the molecular sieve in the conical mesh, rises above the fixed ring, and then is input into the input pipe again for drying circulation, so that the molecular sieve is quickly dried and the Y-type molecular sieve can be fully dried.
[0015] 2. By setting up a drying chamber, a feed cylinder and a transfer chamber, the utility model solves the problem that Y-type molecular sieves need to additionally purify the air in the purification equipment, resulting in low working efficiency of the purification equipment. When materials are input into the transfer chamber above the drying chamber, the negative pressure equipment connected to the negative pressure pipe is started to extract the waste nitrogen gas in the transfer chamber. After the waste nitrogen gas in the transfer chamber is extracted, the waste nitrogen gas is transported to the transfer chamber through the air supply equipment connected to the air supply pipe, so that the air pressure in the transfer chamber is restored, and no additional impurity gas is brought in when the molecular sieve material is input into the drying chamber, enabling continuous operation during the purification process of the molecular sieve and higher working efficiency of the purification equipment. Description of the Drawings
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 It is a partial cross-sectional structure three-dimensional view of a crystallization purification device for Y-type molecular sieves;
[0018] Figure 2 It is a three-dimensional view of the drying chamber structure;
[0019] Figure 3 It is a three-dimensional view of the gas heater structure;
[0020] Figure 4 It is a three-dimensional view of the feed cylinder structure;
[0021] Figure 5 It is a three-dimensional view of the transfer chamber structure.
[0022] Reference Signs:
[0023] 1. Drying chamber; 101. Fixed hole; 102. Concentrating hopper; 2. Gas heater; 201. Circulation pipe; 202. Circulation pump; 203. Gas dryer; 204. Input pipe; 3. Cylinder; 301. Fixed ring; 302. Conical screen; 303. Delivery pipe; 304. Electric control valve I; 4. Transfer chamber; 401. Discharge pipe; 402. Feed pipe; 403. Electric control valve II; 404. Negative pressure pipe; 405. Gas supply pipe. Detailed implementation mode
[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Specific embodiment 1
[0026] Please refer to Figures 1-5 , the present invention is a crystallization purification device for Y-type molecular sieve, including a drying chamber 1, a gas heater 2, a cylinder 3 and a transfer chamber 4. A fixed ring 301 is fixed on the inner wall of the drying chamber 1. When the drying chamber 1 works, the incoming Y-type molecular sieve raw material is dried. The cylinder 3 is fixed therein through the fixed ring 301. The cylinder 3 is fixedly penetrated in the fixed ring 301. The Y-type molecular sieve is received through the cylinder 3 and falls into the conical screen 302. The bottom end of the cylinder 3 is fixed with the conical screen 302. Through the conical screen 302, the dried waste nitrogen gas can pass through it and be transported into the cylinder 3, and then transported to the upper part in the drying chamber 1. The bottom end of the drying chamber 1 is fixed with a concentrating hopper 102. Transfer chambers 4 are arranged below the concentrating hopper 102 and above the drying chamber 1. The dried molecular sieve material in the drying chamber 1 is transferred and output through the transfer chamber 4 below the concentrating hopper 102. A gas heater 2 is arranged on one side of the drying chamber 1. The waste nitrogen gas in the drying chamber 1 is heated by the gas heater 2. A circulation pump 202 is fixed at the top of the gas heater 2. The waste nitrogen gas is pumped by the circulation pump 202 to make the waste nitrogen gas circulate and dry. It continuously circulates and dries. The output end of the circulation pump 202 is fixedly communicated with the gas heater 2. A gas dryer 203 is fixed at the top of the circulation pump 202. The output end of the circulation pump 202 is fixed to the input end of the gas dryer 203. The circulation pump 202 pumps the dried waste nitrogen gas in the gas dryer 203 into it and then transports it to the gas heater 2.
[0027] Specifically, the output end of the gas heater 2 is fixedly communicated with a circulation pipe 201, and the input end of the gas dryer 203 is fixedly communicated with an input pipe 204. The gas heater 2 transports the contaminated nitrogen gas heated therein to the drying chamber 1 through the circulation pipe 201, and transports the contaminated nitrogen gas in the drying chamber 1 to the gas dryer 203 through the input pipe 204.
[0028] Further, one end of the circulation pipe 201 away from the gas heater 2 is fixedly communicated with the peripheral side of the drying chamber 1 below the fixing ring 301, and one end of the input pipe 204 away from the gas dryer 203 is fixedly communicated with the peripheral side of the drying chamber 1 above the fixing ring 301, so that the contaminated nitrogen gas output from the circulation pipe 201 is transported to the drying chamber 1 and then output to the gas dryer 203 through the input pipe 204.
[0029] Further, the bottom end of the conical net 302 is fixedly communicated with a delivery pipe 303, and an electromagnetic control valve 304 is fixed on the peripheral side of the delivery pipe 303. The conical net 302 transports the Y-type molecular sieve dried and purified therein to the centralized hopper 102 through the delivery pipe 303, and controls the on-off of the delivery of the delivery pipe 303 through the electromagnetic control valve 304.
[0030] The operation process of this embodiment is as follows: During operation, when the Y-type molecular sieve is transported into the drying chamber 1, it enters the material cylinder 3 and then falls into the conical net 302. Immediately, the circulation pump 202 is started, so that the contaminated nitrogen gas in the drying chamber 1 is transported to the gas dryer 203 through the input pipe 204. After being dried by the gas dryer 203, it is transported to the gas heater 2 by the circulation pump 202. After being heated by the gas heater 2, it is transported to the lower part inside the drying chamber 1 through the circulation pipe 201. At this time, the contaminated nitrogen gas rises, passes through the conical net 302, dries the molecular sieve in the conical net 302, rises above the fixing ring 301, and then is immediately input into the input pipe 204 for drying circulation, so that the molecular sieve is quickly dried, the water in the molecular sieve is removed. After completion, the electromagnetic control valve 304 is opened, so that the molecular sieve in the conical net 302 is transported to the centralized hopper 102 through the delivery pipe 303. Specific Embodiment Two
[0032] Please refer to Figure 1 、 2, 5. On the basis of the first specific embodiment, a fixing hole 101 is provided in the center of the top end of the drying chamber 1. A discharge pipe 401 is fixedly connected to the bottom end of the transfer chamber 4. The discharge pipe 401 at the bottom end of the transfer chamber 4 above the drying chamber 1 is fixed in the fixing hole 101. A feed pipe 402 is fixedly connected to the center of the top end of the transfer chamber 4. The top end of the feed pipe 402 above the drying chamber 1 is connected to the pipeline for externally transporting Y-type molecular sieve, so that the Y-type molecular sieve that needs to be dried by removing moisture can be transported into the transfer chamber 4. The feed pipe 402 at the top end of the transfer chamber 4 below the drying chamber 1 is fixedly connected to the bottom end of the concentrated hopper 102. Electric control valves II 403 are fixed on the circumferences of the discharge pipe 401 and the feed pipe 402. During operation, the transfer chamber 4 at the top end of the drying chamber 1 starts to work first. The feed pipe 402 at the top end of the transfer chamber 4 at the top end of the drying chamber 1 transports the Y-type molecular sieve into it. After the transportation is completed, the electric control valve II 403 on the feed pipe 402 is closed, and the air extraction equipment connected to the negative pressure pipe 404 is started. After the air in the transfer chamber 4 is extracted, after supplementing the transfer chamber 4 with contaminated nitrogen through the air supply pipe 405, the electric control valve II 403 on the discharge pipe 401 is opened, so that the Y-type molecular sieve in the transfer chamber 4 is transported into the drying chamber 1. After the molecular sieve in the drying chamber 1 is dried, the electric control valve I 304 is opened, so that the molecular sieve in the conical net 302 is transported into the concentrated hopper 102 through the conveying pipe 303, concentrated into the feed pipe 402 at the top end of the transfer chamber 4 below the drying chamber 1, and transported into the transfer chamber 4 below the drying chamber 1 through the feed pipe 402. The electric control valve II 403 on this feed pipe 402 is closed, and then the electric control valve II 403 on the circumference of the discharge pipe 401 below the drying chamber 1 is started, and the molecular sieve is transported to the equipment for the next processing through the discharge pipe 401.
[0033] Specifically, a negative pressure pipe 404 is fixedly connected to the front part of the top end of the transfer chamber 4 above the drying chamber 1. The negative pressure pipe 404 is connected to the equipment for extracting contaminated nitrogen. An air supply pipe 405 is fixedly connected to the top end of the transfer chamber 4 on one side of the negative pressure pipe 404. The air supply pipe 405 is connected to the equipment for supplementing contaminated nitrogen. After the material is input into the transfer chamber 4 above the drying chamber 1, the negative pressure equipment connected to the negative pressure pipe 404 is started, and the contaminated nitrogen in the transfer chamber 4 is extracted by the negative pressure equipment. After the contaminated nitrogen in the transfer chamber 4 is extracted, the contaminated nitrogen is transported into the transfer chamber 4 through the air supply equipment connected to the air supply pipe 405, so that the air pressure in the transfer chamber 4 is restored.
[0034] The operation process of this embodiment is as follows: During operation, the transfer chamber 4 at the top of the drying chamber 1 starts to work first. The feed pipe 402 at the top of the transfer chamber 4 at the top of the drying chamber 1 conveys the Y-type molecular sieve into it. After the conveyance is completed, the second electric control valve 403 on the feed pipe 402 is closed, and the air extraction device connected to the negative pressure pipe 404 is started. After air is extracted from the transfer chamber 4, after supplementing the dirty nitrogen gas into the transfer chamber 4 through the air supply pipe 405, the second electric control valve 403 on the discharge pipe 401 is opened, so that the Y-type molecular sieve in the transfer chamber 4 is conveyed into the drying chamber 1. When the molecular sieve in the drying chamber 1 is dried, the first electric control valve 304 is opened, so that the molecular sieve in the conical mesh 302 is conveyed into the centralized hopper 102 through the conveying pipe 303, concentrated into the feed pipe 402 at the top of the transfer chamber 4 below the drying chamber 1, and conveyed into the transfer chamber 4 below the drying chamber 1 through the feed pipe 402. The second electric control valve 403 on this feed pipe 402 is closed, and then the second electric control valve 403 on the periphery of the discharge pipe 401 below the drying chamber 1 is started, and the molecular sieve is conveyed into the equipment for the next processing through the discharge pipe 401. When materials are input into the transfer chamber 4 above the drying chamber 1, the negative pressure device connected to the negative pressure pipe 404 is started, and the dirty nitrogen gas in the transfer chamber 4 is extracted through the negative pressure device. After the dirty nitrogen gas in the transfer chamber 4 is extracted, the air supply device connected to the air supply pipe 405 conveys the dirty nitrogen gas into the transfer chamber 4, so that the air pressure in the transfer chamber 4 is restored, so that when the molecular sieve material is input into the drying chamber 1, no additional impurity gas will be brought in.
[0035] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0036] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not elaborate all the details, nor do they limit the present invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.
Claims
1. A crystallization purification device for a Y-type molecular sieve, comprising a drying chamber (1), a gas heater (2), a barrel (3) and a transfer chamber (4), characterized in that: A fixing ring (301) is fixed on the inner wall of the drying chamber (1), a barrel (3) is fixed through the fixing ring (301), a conical net (302) is fixed at the bottom end of the barrel (3), a focusing bucket (102) is fixed at the bottom end of the drying chamber (1), a transfer chamber (4) is provided below the focusing bucket (102) and above the drying chamber (1), a gas heater (2) is provided on one side of the drying chamber (1), a circulating pump (202) is fixed at the top end of the gas heater (2), an output end of the circulating pump (202) is fixedly connected to the gas heater (2), a gas dryer (203) is fixed at the top end of the circulating pump (202), and the output end of the circulating pump (202) is fixed to the input end of the gas dryer (203).
2. The crystallization purification device of a Y-type molecular sieve according to claim 1, characterized in that: The output end of the gas heater (2) is fixedly connected to a circulation pipe (201), and the input end of the gas dryer (203) is fixedly connected to an input pipe (204).
3. The crystallization purification device of a Y-type molecular sieve according to claim 2, characterized in that: One end of the circulation pipe (201) away from the gas heater (2) is fixedly connected to the peripheral side of the drying chamber (1) below the fixed ring (301), and one end of the input pipe (204) away from the gas dryer (203) is fixedly connected to the peripheral side of the drying chamber (1) above the fixed ring (301).
4. The crystallization purification device of a Y-type molecular sieve according to claim 1, characterized in that: The bottom end of the conical net (302) is fixedly connected to a delivery pipe (303), and an electric control valve (304) is fixed on the peripheral side of the delivery pipe (303).
5. The crystallization purification device of a Y-type molecular sieve according to claim 1, characterized in that: A fixing hole (101) is provided at the center of the top of the drying chamber (1); a discharge pipe (401) is fixedly connected to the bottom of the transfer chamber (4); the discharge pipe (401) at the bottom of the transfer chamber (4) above the drying chamber (1) is fixed in the fixing hole (101); a feed pipe (402) is fixedly connected to the center of the top of the transfer chamber (4); the feed pipe (402) at the top of the transfer chamber (4) below the drying chamber (1) is fixedly connected to the bottom of the central bucket (102); and electric control valves (403) are fixedly provided on the sides of the discharge pipe (401) and the feed pipe (402).
6. The crystallization purification device of a Y-type molecular sieve according to claim 1, characterized in that: The front portion of the top end of the transfer chamber (4) above the drying chamber (1) is fixedly connected to a negative pressure pipe (404), and the top end of the transfer chamber (4) on one side of the negative pressure pipe (404) is fixedly connected to an air supply pipe (405).