Catalyst dilute phase conveying device

Abstract

The utility model provides a catalyst dilute phase conveying device. The catalyst dilute phase conveying device comprises a gas phase conveying cabin, a material tray, a rotational flow gas cylinder, a gas phase mixing assembly and the like. According to the device, the tangential air inlet, the first air inlet and the second air inlet are formed, the rotational flow guiding device is used for guiding the rotary blades, rotational flow is generated in the gas phase conveying cabin, and the mixing effect of the air flow and the catalyst powder is effectively improved. Meanwhile, through the gas phase mixing assembly and the rotational flow gas cylinder, the gas flow generates secondary power in rotational flow, the content of gas in the gas phase is further increased, and more efficient dilute phase conveying is achieved. Specifically, after passing through the micropores in the bottom surface of the material tray, the airflow drives the catalyst powder to move upwards, and is guided by the flow guide cover to enter the area of the guide conical cylinder, so that catalyst particles are uniformly distributed and stably conveyed. Besides, in the process of optimizing mixing and conveying of airflow and catalyst particles, the gas phase conveying efficiency is remarkably improved, and deposition and aggregation of the particles are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of dilute phase conveying, specifically to a catalyst dilute phase conveying device. BACKGROUND

[0002] The existing catalyst dilute phase conveying device generally adopts the mode of air flow driving catalyst particles to carry out material conveying. The traditional catalyst dilute phase conveying device is usually composed of a gas source, a conveying pipeline, a gas-solid separator and a catalyst storage device. The air flow provided by the gas source enters the catalyst conveying system through the air inlet pipeline, and under the action of the air flow, the catalyst particles are driven and conveyed to the reaction area. In the traditional design, the air flow is mixed with the catalyst through a simple air inlet or air flow pipeline, and then is transmitted through the conveying pipeline. The mixing of the air flow and the catalyst particles often depends on natural diffusion or a relatively single air flow design. Due to uneven distribution of the air flow, the catalyst particles are unevenly distributed, which leads to deposition or uneven conveying of the catalyst particles in the conveying process, affecting the overall conveying efficiency and the effect of the catalytic reaction.

[0003] Insufficient mixing of air flow and catalyst particles: the existing traditional catalyst dilute phase conveying device usually does not have an effective air flow guiding system, and the mixing of the air flow and the catalyst powder is relatively simple and uneven, which limits the ability of the air flow to drive the catalyst particles and cannot achieve the best dilute phase conveying effect. This not only reduces the conveying efficiency of the catalyst particles, but also may cause problems such as catalyst deposition and accumulation, thereby affecting the stability and efficiency of the catalytic reaction.

[0004] Insufficient air flow power and low gas content: the air flow in the traditional technology usually relies on single air flow input, lacks the guidance of cyclone air flow and the enhancement of secondary power, and the power of the air flow is relatively weak, which leads to insufficient gas content in the gas phase, so that more catalyst particles cannot be effectively driven to participate in the conveying. The dilute phase conveying device of such structure is prone to air flow weakening and poor conveying of catalyst particles after a long time of work, which affects the continuity and stability in the production process. SUMMARY

[0005] The utility model aims at solving the technical problems existing in the prior art or related technology.

[0006] The utility model relates to a catalyst dilute phase conveying device, specifically including gas phase conveying cabin, material tray, cyclone air cylinder and gas phase mixing assembly, and can effectively improve the mixing effect of the air flow and the catalyst powder, enhance the ability of the air flow to drive the catalyst particles, and thus optimize the dilute phase conveying process of the catalyst. The utility model is described in detail below in combination with the drawings and specific embodiments.

[0007] The utility model provides a kind of catalyst dilute phase conveying device, including: gas phase conveying cabin, material tray, cyclone gas cylinder and gas phase mixing component, the bottom surface of the gas phase conveying cabin is detachably installed with gas guide seat, and the surface of gas phase conveying cabin and gas guide seat is respectively provided with first gas inlet and second gas inlet, the top end of the gas phase conveying cabin is connected with dilute phase conveying pipe, the outer periphery of the material tray is in interference with the inner wall of gas phase conveying cabin, the inner side of the cyclone gas cylinder is fixed in gas phase conveying cabin and the gap between the outer periphery of cyclone gas cylinder and the inner wall of gas phase conveying cabin, the surface of the cyclone gas cylinder is fixedly installed with guide vane, and the surface of cyclone gas cylinder is provided with air-permeable mesh, the gas phase mixing component includes spacer sleeve and a plurality of guide cone fixed to the inner side of spacer sleeve, the bottom surface of the spacer sleeve is provided with cyclone gas passage tangentially communicated with each guide cone, and the top end of the guide cone is provided with beam jet nozzle opposite to dilute phase conveying pipe.The first gas inlet and the second gas inlet are provided as air inlet, to form air flow channel in the gas phase conveying cabin, air flow is input through the first gas inlet and the second gas inlet, to promote the mixing of air flow and catalyst powder, optimize the ability of air flow to drive catalyst particles, thereby improving dilute phase conveying efficiency.

[0008] In a preferred example, the utility model can be further configured as: the end of the first gas inlet and the second gas inlet is communicated with high-pressure gas pump for air input, and the first gas inlet is communicated with the surface of the gas phase conveying cabin in tangential direction.By connecting high-pressure gas pump to the end of the first gas inlet and the second gas inlet, and guiding air flow to the inner side of the gas phase conveying cabin, rotational flow is generated by tangential input of air flow, to further improve the mixing effect of air flow and catalyst particles, and promote dilute phase conveying efficiency.

[0009] In a preferred example, the utility model can be further configured as: the material tray is used for holding catalyst powder, and the bottom surface of the material tray is provided with densely distributed micropores for air flow, and the top surface of the material tray is detachably installed with flow guide cover, and the top end of the flow guide cover extends to the inner side of each guide cone.Specifically, the outer periphery of the material tray is sealingly abutted with the inner wall of the gas phase conveying cabin, after gas is introduced into the inner part of the gas guide seat, the catalyst powder is lifted and moves to the inner part of each guide cone through the micropores on the bottom surface of the material tray after the gas is permeated through the micropores, to realize preliminary mixing and conveying movement of gas phase, and realize dense phase conveying.By providing micropores on the bottom surface of the material tray, catalyst powder is lifted and conveyed after air is permeated through the micropores.Catalyst powder enters the inner side of the guide cone under the guidance of the flow guide cover, and is preliminarily mixed with air flow, to effectively improve the uniform distribution of catalyst particles in the dilute phase conveying process.

[0010] In a preferred embodiment, this invention can be further configured such that a gap is provided between the outer periphery of the partition sleeve and the inner wall of the swirling air cylinder, and airflow through the permeable mesh is input into the guide cone through the swirling air channel. Specifically, airflow is introduced into the inner side of the gas phase transport chamber through the first air inlet, and swirling is generated under the tangential guidance of the first air inlet and the guidance of the guide vanes. After passing through the permeable mesh, the airflow moves in a swirling motion between the outer periphery of the partition sleeve and the swirling air cylinder, and is then tangentially introduced into the inner side of the guide cone through the swirling air channel, moving in a swirling motion along the inner wall of the guide cone. It then mixes again with the initial gas phase mixed airflow output from the top of the guide cover, providing secondary power for gas phase transport and increasing the gas content in the gas phase, thus achieving dilute phase transport. Airflow introduced into the swirling air channel through the permeable mesh forms a swirling motion between the outer periphery of the partition sleeve and the swirling air cylinder. The airflow enters the inner side of the guide cone through the swirling air channel, mixing again with the initial airflow output from the guide cover, increasing the gas content in the gas phase, and further improving the efficiency and stability of dilute phase transport.

[0011] In a preferred embodiment, this invention can be further configured such that the surface cylinder of the flow guide cover is arranged in a one-to-one correspondence with the guide cone, and is coaxially arranged with each guide cone. By arranging the flow guide cover and the guide cone coaxially, it is possible to ensure that the catalyst powder is evenly distributed inside the guide cone, avoiding uneven distribution, thereby ensuring the stability and uniformity of the catalyst particles during the conveying process.

[0012] In a preferred embodiment, this invention can be further configured such that each of the swirling gas channels is arranged tangentially along the guide cone, and the diameter of each jet nozzle is smaller than the diameter of the bottom port of the guide cone. By tangentially arranging the swirling gas channels and designing the jet nozzle diameter to be smaller than the diameter of the bottom port of the guide cone, the jetting effect of the airflow is effectively improved, thereby further optimizing the ability of the airflow to carry the catalyst powder and improving the efficiency and effect of dilute phase transport.

[0013] In a preferred embodiment, this invention can be further configured such that the micropores on the bottom surface of the material tray have a diameter of 0.5-0.8 mm, allowing airflow while preventing catalyst powder from passing through. By rationally designing the diameter range (0.5-0.8 mm) of the micropores on the bottom surface of the material tray, the airflow rate is effectively controlled, preventing catalyst powder from escaping through the micropores, thereby ensuring effective catalyst delivery and smooth airflow.

[0014] Through the above structural design and working principle, this utility model can provide an efficient and stable solution for catalyst dilute phase delivery, which is widely applicable to material delivery and mixing in catalytic reaction processes, and significantly improves production efficiency and the stability of catalytic reactions.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] 1.The utility model discloses, through the setting tangential air inlet and airflow guiding device, cyclone is generated in the gas phase conveying cabin, thereby effectively improve the mixing effect of airflow and catalyst material powder, enhance the ability of airflow driving catalyst particle, optimize the dilute phase conveying process.

[0017] 2.The utility model discloses, through the setting gas phase mixing subassembly and cyclone air cylinder, make airflow produce secondary power in cyclone movement, further improve the content of gas in gas phase, and guarantee catalyst particle uniform distribution, realize higher efficiency dilute phase conveying. DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of an embodiment of the utility model;

[0019] Figure 2 It is the inside structure schematic diagram of gas phase conveying cabin of an embodiment of the utility model;

[0020] Figure 3 It is the cross section structure schematic diagram of gas phase conveying cabin and material tray of an embodiment of the utility model;

[0021] Figure 4 It is the structure schematic diagram of material tray, cyclone air cylinder and gas phase mixing subassembly of an embodiment of the utility model;

[0022] Figure 5 It is the bottom surface structure schematic diagram of gas phase mixing subassembly of an embodiment of the utility model.

[0023] Reference signs:

[0024] 100, gas phase conveying cabin; 110, gas guide seat; 120, first air inlet; 130, second air inlet; 140, dilute phase conveying pipe; 200, material tray; 210, flow guide cover; 300, cyclone air cylinder; 310, guide vane; 320, air-permeable mesh; 400, gas phase mixing subassembly; 410, spacer sleeve; 420, guide cone cylinder; 421, cyclone air duct; 422, beam air nozzle. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is explained in further detail below in combination with specific implementation manners and with reference to the drawings. It should be explained that the embodiment of the utility model and the features in the embodiment can be combined mutually without conflict.

[0026] It is understood that the description is only exemplary, and is not intended to limit the scope of the utility model.

[0027] The utility model discloses a kind of catalyst dilute phase conveying devices provided by some embodiments of the description. Figures 1-5 ​

[0028] Embodiment 1

[0029] The catalyst dilute phase conveying device described in this embodiment comprises a gas phase conveying cabin 100, a material tray 200, a cyclone gas cylinder 300 and a gas phase mixing assembly 400, and adopts a set of air flow guiding and catalyst conveying system.

[0030] Air flow guiding and catalyst conveying device

[0031] The gas phase conveying cabin 100 is a gas phase conveying cabin, the bottom surface of which is detachably installed with a gas guiding seat 110, and the surface of the gas guiding seat 110 is provided with a first gas inlet 120 and a second gas inlet 130. The high-pressure gas pump inputs air flow through the ports of the first gas inlet 120 and the second gas inlet 130. The air flow enters the gas phase conveying cabin 100 through the tangential gas inlet of the first gas inlet 120, preliminarily mixes with the catalyst powder in the gas phase conveying cabin 100, passes through the micropores on the bottom surface of the material tray 200, and then the air flow drives the catalyst powder to move upwards and enter the guiding area of the flow guiding cover 210.

[0032] Air flow mixing and cyclone generation

[0033] The air flow entering the cyclone gas cylinder 300 forms a cyclone through the guiding vane 310, which helps the further mixing of the air flow and the catalyst powder, and then enters the area of the spacer sleeve 410 through the air permeable mesh 320. In the gap between the outer periphery of the spacer sleeve 410 and the inner wall of the cyclone gas cylinder 300, the air flow continues to rotate and is tangentially guided into the inner side of the guiding cone cylinder 420 through the cyclone gas duct 421. After the air flow enters the guiding cone cylinder 420, it rotates along the inner wall of the guiding cone cylinder 420 and mixes again with the preliminarily mixed air flow in the area of the flow guiding cover 210, thereby generating secondary power and further increasing the gas content in the gas phase.

[0034] Catalyst powder conveying and distribution

[0035] Through the cyclone motion of the guiding cone cylinder 420, the catalyst powder is fully mixed with the air flow and is uniformly distributed to the inner side of the guiding cone cylinder 420. The mixed air flow and catalyst powder are further conveyed to the reaction area through the dilute phase conveying pipe 140.

[0036] Implementation effect

[0037] The double design of the cyclone air flow guiding and gas phase mixing assembly adopted in this embodiment significantly improves the mixing effect of the air flow and the catalyst particles. The cyclone of the air flow and the secondary power effectively avoid the deposition and aggregation of the catalyst particles, ensure the uniform distribution of the catalyst particles in the conveying process, and optimize the dilute phase conveying effect.

[0038] Embodiment 2

[0039] In this embodiment, the configuration of the catalyst dilute phase conveying device is similar to the first embodiment, but is partially optimized and improved in structure.

[0040] Gas flow guiding and catalyst powder conveying

[0041] The gas phase conveying cabin 100 is a gas phase conveying cabin, the bottom surface of which is installed and sealedly connected with the material tray 200 through the gas guide seat 110. The gas flow is introduced by the high-pressure gas pump through the first gas inlet 120 and the second gas inlet 130, and the tangential input of the first gas inlet 120 guides the gas flow to rotate in the gas phase conveying cabin 100, forming a local cyclone. The bottom surface of the material tray 200 is distributed with micropores with a pore diameter of 0.5-0.8 mm, and the gas flow carries the catalyst powder after passing through the micropores and is guided to the inside of the guide cone cylinder 420 through the flow guide cover 210.

[0042] Cyclone gas flow guiding design

[0043] The cyclone gas cylinder 300 further optimizes the guiding effect of the gas flow. The gas flow is guided in the cyclone gas cylinder 300 through the guide of the guide vane 310, forming a strong cyclone, enhancing the power of the gas flow, and entering the spacer sleeve 410 area after passing through the air holes of the air mesh 320. In the gap between the outer periphery of the spacer sleeve 410 and the inner wall of the cyclone gas cylinder 300, the gas flow is fully mixed with the catalyst powder, the gas flow enters the inside of the guide cone cylinder 420 through the tangential inlet of the cyclone gas duct 421, rotates along the inner wall of the guide cone cylinder 420, and mixes with the preliminary mixed gas flow at the flow guide cover 210 again.

[0044] Improved gas flow and catalyst particle mixing

[0045] The guide cone cylinder 420 is provided with a beam jet nozzle 422 opposite to the dilute phase conveying pipe 140 at the top end, and the gas flow is output through the beam jet nozzle, further ensuring the uniformity of the catalyst powder in the conveying process. Through this improvement, the mixing of the gas flow and the catalyst particles is more uniform, effectively avoiding uneven distribution of particles, and ensuring smooth conveying of the catalyst.

[0046] Implementation effect

[0047] In this embodiment, the bottom surface micropore design of the material tray 200 and the configuration of the beam jet nozzle of the guide cone cylinder 420 are optimized, so that the power of the gas flow is more uniform and stable, and the conveying capacity of the catalyst particles is further enhanced through cyclone guiding, improving the efficiency of dilute phase conveying and ensuring uniform distribution and stable conveying of the catalyst.

[0048] Summary

[0049] Through the design and optimization of the above embodiments, the catalyst dilute phase conveying device can realize efficient mixing and conveying of airflow and catalyst powder. The cyclone airflow guide, gas phase mixing assembly, and beam gas nozzle design elements in the structural design ensure that the catalyst particles do not deposit and aggregate during the conveying process, thereby improving the efficiency and stability of dilute phase conveying. Both embodiments exhibit effective performance under different structural configurations, adapting to a variety of different catalyst dilute phase conveying needs.

[0050] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "a specific embodiment", and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description 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 any one or more embodiments or examples in a suitable manner.

[0051] Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made thereto without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A catalyst dilute phase conveying device, characterized in that, The utility model relates to a kind of gas phase conveying cabin, material tray, cyclone gas cylinder and gas phase mixing assembly, the bottom surface of the gas phase conveying cabin (100) is detachably installed with gas guide seat (110), and the surface of gas phase conveying cabin (100) and gas guide seat (110) is respectively provided with first gas inlet (120) and second gas inlet (130), the top end of the gas phase conveying cabin (100) is connected with dilute phase conveying pipe (140), the outer periphery of the material tray (200) is in interference with the inner wall of gas phase conveying cabin (100), the inner side of the cyclone gas cylinder (300) is fixed in gas phase conveying cabin (100) and the gap between the outer periphery of cyclone gas cylinder (300) and the inner wall of gas phase conveying cabin (100) is equipped, the surface of the cyclone gas cylinder (300) is fixedly installed with guide vane (310), and the surface of cyclone gas cylinder (300) is provided with air-permeable mesh (320), the gas phase mixing assembly (400) includes spacer sleeve (410) and several guide cone (420) fixed to the inner side of spacer sleeve (410), the bottom surface of the spacer sleeve (410) is provided with cyclone air duct (421) tangentially communicated with each guide cone (420), and the top end of the guide cone (420) is provided with beam jet nozzle (422) opposite dilute phase conveying pipe (140). The end of the first gas inlet (120) and the second gas inlet (130) is communicated with high-pressure gas pump for the input of airflow, and the first gas inlet (120) is communicated with the surface of the gas phase conveying cabin (100) in tangential direction.

2. A catalyst lean phase conveying device according to claim 1, characterized in that The material tray (200) is used for catalyst powder storage, and the bottom surface of the material tray (200) is provided with densely distributed micropores for airflow passing, and the top surface of the material tray (200) is detachably installed with flow guide cover (210), and the top end of the flow guide cover (210) extends to the inner side of each guide cone (420).

3. A catalyst lean phase conveying device according to claim 1, characterized in that The gap is provided between the outer periphery of the spacer sleeve (410) and the inner wall of the cyclone gas cylinder (300), and the airflow passing through the air-permeable mesh (320) is input into the inner part of the guide cone (420) by the cyclone air duct (421).

4. A catalyst lean phase conveying device according to claim 1, characterized in that The surface cylinder of the flow guide cover (210) is arranged one by one with the guide cone (420), and is coaxially arranged with each guide cone (420).

5. A catalyst lean phase conveying device according to claim 3, wherein Each cyclone air duct (421) is arranged tangentially along the guide cone (420), and the caliber of each beam jet nozzle (422) is smaller than the caliber of the bottom end of the guide cone (420).

6. A catalyst lean phase conveying device according to claim 1, wherein The pore diameter of the micropores on the bottom surface of the material tray (200) is 0.5-0.8mm, which is used for the passing of airflow to avoid the passing of catalyst powder.

7. A catalyst lean phase conveying device according to claim 3, wherein ​

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