Alkali liquor spray tower in rotational flow liquid distribution mode for graphene production
By employing an oscillating swirl nozzle array and an eccentric wheel mechanism in the alkali spray tower for graphene production, the problems of uneven liquid distribution and low mass transfer efficiency were solved, achieving efficient contact between the alkali solution and graphene, and improving the purification effect of graphene and the stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional graphene production alkaline spray towers suffer from uneven liquid distribution, low mass transfer efficiency, poor structural flexibility, and high maintenance costs, making it difficult to meet the high purity requirements of graphene in high-end fields.
The system employs an oscillating swirl nozzle array, combined with an eccentric wheel mechanism, universal joint, and telescopic rod design, to achieve a dynamic swirling trajectory of the alkali solution inside the tower body. This enhances the contact frequency and contact area between the alkali solution and graphene. Furthermore, the atomization and dispersion of the alkali solution are improved through spiral guide vanes and a conical nozzle structure.
It significantly increases the contact frequency and contact area between alkali solution and graphene, enhances mass transfer efficiency, ensures equipment structural stability and flexibility, reduces maintenance costs, and improves production efficiency and product quality.
Smart Images
Figure CN224100725U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to lye spray tower technical field, concretely, relate to a kind of lye spray tower of cyclone liquid distribution mode of graphene production. BACKGROUND
[0002] Graphene is an important industrial material, widely used in new energy, semiconductor, aerospace and other high-end fields. In the production process of graphene, lye spray tower is one of the key equipment to realize graphite purification. The working principle of lye spray tower is to use the chemical reaction between lye and impurities in graphite to dissolve or convert impurities into separable substances, thereby improving the purity of graphite. In the traditional lye spray tower of graphene production, its structure usually includes tower body, liquid distribution device, filler layer, liquid inlet and liquid outlet and other basic components. The liquid distribution device usually uses fixed nozzles or simple liquid distribution plates. After the lye enters the tower body through the liquid inlet, it is sprayed out from the fixed nozzles or distributed through the liquid distribution plates by gravity or simple pressure. The lye contacts and reacts with the graphite material in the filler layer, and finally the reacted lye is discharged from the liquid outlet.
[0003] However, the traditional lye spray tower for graphene production has many drawbacks. First of all, in terms of uniformity of liquid distribution, due to the limitations of fixed nozzles or simple liquid distribution plates, the lye is difficult to be evenly distributed in the cross section of the tower body. This results in that part of the graphite cannot be fully contacted with the lye, and the lye concentration in some areas is too high, which not only causes waste of lye, but also makes the graphite purity improvement effect unsatisfactory, and it is difficult to meet the strict requirements of high-end fields on the purity of graphene. Secondly, in terms of mass transfer efficiency, under the fixed nozzle spraying mode, the contact between lye and graphite mainly depends on the natural diffusion under the action of gravity, with low contact frequency, short contact time and slow mass transfer process. In order to achieve a certain purification effect, it is often necessary to prolong the reaction time or increase the amount of lye, which undoubtedly increases the production cost and energy consumption. Thirdly, the structure flexibility of traditional spray tower is poor, and it is difficult to adjust according to different production processes and graphite raw material characteristics. When producing graphene with different purity requirements or processing graphite raw materials with different impurity contents, it is difficult to accurately control the amount and mode of lye spraying, which affects the production efficiency and product quality. In addition, the traditional spray tower also has the problems of easy wear of parts and high maintenance cost during long-term operation. For example, the fixed nozzles are easily clogged by graphite particles or impurities, affecting the spraying effect; the connection parts between the liquid distribution plate and the tower body are easily loosened and leaked under the long-term erosion of lye, which not only affects the normal operation of the equipment, but also has safety hazards. SUMMARY
[0004] Therefore, the utility model provides a kind of lye spray tower of cyclone liquid distribution mode of graphene production, solves the problem of uneven liquid distribution of traditional lye spray tower for graphene production, and improves the mass transfer efficiency.
[0005] This utility model is implemented as follows:
[0006] This utility model provides an alkaline spray tower for graphene production using a swirling liquid distribution method. The tower includes a tower body, inside which is arranged an array of oscillating swirling nozzles. The oscillating swirling nozzle array includes multiple swirling nozzles, universal joints, oscillating connecting rods, and an eccentric wheel mechanism. Each swirling nozzle is connected to one end of the oscillating connecting rod via the universal joint, and the other end of the oscillating connecting rod is connected to the eccentric wheel mechanism. The eccentric wheel mechanism is located on the inner wall of the top of the tower body, and the oscillating connecting rod extends through the top of the tower body into the interior of the tower body. The multiple swirling nozzles are distributed circumferentially along the interior of the tower body.
[0007] The technical advantages of this utility model for an alkaline spray tower with a swirling liquid distribution method for graphene production are as follows: By setting an array of oscillating swirling nozzles inside the tower body, with multiple swirling nozzles circumferentially distributed, and cooperating with an eccentric wheel mechanism to drive the oscillating connecting rod and universal joint, the swirling nozzles generate periodic oscillations. This creates a dynamic swirling trajectory for the alkaline solution during spraying, which, compared to fixed nozzles, greatly increases the contact frequency and contact area between the alkaline solution and graphene, significantly enhancing mass transfer efficiency. Simultaneously, the clear connection and positional relationships of each component ensure structural stability and reliable movement, facilitating equipment installation and maintenance.
[0008] Based on the above technical solution, the alkaline spray tower for graphene production using a swirl-distribution method can be further improved as follows:
[0009] The swirl nozzle includes a nozzle body, and a spiral guide vane is provided at the liquid spray port of the nozzle body. The spiral guide vane is distributed in a spiral shape around the liquid spray port.
[0010] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: A spiral guide vane is installed at the spray nozzle of the swirl nozzle body, spirally distributed around the spray nozzle. When the alkali solution is sprayed from the spray nozzle, guided by the spiral guide vane, a stable swirl can be formed more quickly, improving the atomization and dispersion effect of the alkali solution, allowing the alkali solution to cover the graphene surface more evenly, further enhancing the uniformity and completeness of the reaction.
[0011] Furthermore, the nozzle body has a conical structure, and the spray nozzle is located at the tip of the cone of the nozzle body.
[0012] The beneficial effects of the above improvement scheme are that the nozzle body is in a conical structure, and the liquid injection port is located at the tip of the cone. This structure design gradually accelerates the flow of lye inside the nozzle, and the lye has greater injection pressure and speed when it is sprayed out of the liquid injection port. In combination with the spiral guide vane, the range of the rotating flow lye is farther, and the coverage is wider. In the case of limited internal space of the tower body, it ensures that the lye can effectively act on the graphene material at each position.
[0013] Further, the universal joint comprises a first connecting part and a second connecting part hingedly connected to each other, the first connecting part is fixedly connected with the rotating flow nozzle, and the second connecting part is fixedly connected with the swing connecting rod.
[0014] The beneficial effects of the above improvement scheme are that the universal joint comprises a first connecting part and a second connecting part hingedly connected to each other, and is fixedly connected with the rotating flow nozzle and the swing connecting rod respectively. This structure gives the rotating flow nozzle the freedom to swing in multiple directions, so that the nozzle can flexibly swing according to the driving track of the eccentric mechanism, ensuring the diversity and complexity of the lye spraying track, thereby more comprehensively contacting the graphene.
[0015] Further, the swing connecting rod is a telescopic rod, comprising an outer sleeve and an inner slide rod, the inner slide rod is slidably arranged in the outer sleeve, the inner slide rod is connected with the universal joint, and the outer sleeve is connected with the eccentric mechanism.
[0016] The beneficial effects of the above improvement scheme are that the swing connecting rod is designed as a telescopic rod, which is composed of an outer sleeve and an inner slide rod, and the inner slide rod can slide in the outer sleeve. During the driving of the swing connecting rod by the eccentric mechanism, the telescopic rod can automatically adjust the length according to the swing amplitude, avoiding damage to the equipment caused by component interference or tensile deformation during the swing process, ensuring the long-term stable operation of the swing rotating flow nozzle array, and also facilitating the adjustment of the swing amplitude according to the actual working condition.
[0017] Further, the eccentric mechanism comprises an eccentric wheel, a drive shaft and a bearing seat, the drive shaft passes through the center hole of the eccentric wheel and is fixedly connected with the eccentric wheel, the drive shaft is rotatably installed on the inner wall of the top of the tower body through the bearing seat, and the swing connecting rod is in contact with the outer periphery of the eccentric wheel.
[0018] The beneficial effects of the above improvement scheme are that the eccentric mechanism is composed of an eccentric wheel, a drive shaft and a bearing seat, the drive shaft passes through the center hole of the eccentric wheel and is fixedly connected, and is installed on the inner wall of the top of the tower body through the bearing seat, and the swing connecting rod is in contact with the outer periphery of the eccentric wheel. This structure converts the circular motion of the drive shaft into the reciprocating swing of the swing connecting rod through simple mechanical transmission, and has the advantages of simple and reliable structure, low cost, easy installation and maintenance, and stable swing driving force for the rotating flow nozzle.
[0019] Further, the end of the swing link in contact with the eccentric wheel is provided with a roller, which is rotatably mounted on the end of the swing link and in rolling contact with the outer peripheral surface of the eccentric wheel.
[0020] The beneficial effects of the above improvement scheme are that the end of the swing link in contact with the eccentric wheel is provided with a roller, which is rotatably mounted on the end of the swing link and in rolling contact with the outer peripheral surface of the eccentric wheel. The sliding friction is converted into rolling friction, greatly reducing the friction between the swing link and the eccentric wheel, reducing the wear of the parts, prolonging the service life of the equipment, and at the same time making the movement of the swing link more smooth, ensuring the stability and accuracy of the swing of the swirl nozzle.
[0021] Further, a support frame is arranged inside the tower body, and a plurality of swirl nozzles are mounted on the support frame, which is fixedly connected to the inner wall of the tower body.
[0022] The beneficial effects of the above improvement scheme are that a support frame is arranged inside the tower body, and a plurality of swirl nozzles are mounted on the support frame, which is fixedly connected to the inner wall of the tower body. The support frame provides a stable mounting basis for the swirl nozzles, ensuring that the nozzles are fixed in position during swinging and will not be displaced due to their own swinging or the impact force of the alkali solution, ensuring the accuracy and stability of the alkali solution spraying, and facilitating the centralized installation and maintenance of the swirl nozzles.
[0023] Further, the support frame comprises a plurality of arc-shaped support bars distributed circumferentially along the tower body, and adjacent arc-shaped support bars are fixedly connected by connecting rods, and the swirl nozzles are mounted on the arc-shaped support bars.
[0024] The beneficial effects of the above improvement scheme are that the support frame comprises a plurality of arc-shaped support bars distributed circumferentially along the tower body, and adjacent arc-shaped support bars are fixedly connected by connecting rods, and the swirl nozzles are mounted on the arc-shaped support bars. This structure rationally utilizes the internal space of the tower body, and the arc-shaped support bars are adapted to the shape of the internal space of the tower body, which can uniformly disperse the weight of the swirl nozzles and the acting force generated by the swinging, enhancing the overall strength and stability of the support frame and ensuring reliable operation of the swirl nozzles.
[0025] Further, a drain port is arranged at the bottom of the tower body, and a filter screen is arranged at the drain port.
[0026] The beneficial effects of the above improvement scheme are that a drain port is arranged at the bottom of the tower body and a filter screen is installed, which can intercept graphene materials and other impurities when the reacted alkali solution is discharged from the drain port, preventing them from entering the subsequent waste liquid treatment system and avoiding pipe blockage or equipment damage, and facilitating the separation and recovery of the reacted materials.
[0027] Compared with the prior art, the alkali liquor spraying tower for graphene production in a rotational flow liquid distribution mode has the following beneficial effects:
[0028] The alkali liquor spraying tower for graphene production in a rotational flow liquid distribution mode has the following beneficial effects:
[0029] In terms of structural stability and reliability, the alkali liquor spraying tower for graphene production in a rotational flow liquid distribution mode has the following beneficial effects:
[0030] In terms of structural stability and reliability, the alkali liquor spraying tower for graphene production in a rotational flow liquid distribution mode has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS
[0031] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.
[0032] Figure 1 A kind of alkali liquor spraying tower for graphene production in a rotational flow liquid distribution mode example diagram;
[0033] Figure 2 It is a kind of graphene production's whirl flow cloth liquid mode's lye spray tower plan view;
[0034] Figure 3 It is the example drawing of the swing type whirl flow spray head array of the utility model;
[0035] Figure 4 It is the example drawing of the whirl flow spray head of the utility model;
[0036] In the drawing, the component list represented by each sign is as follows:
[0037] 10, tower body;11, support frame;12, liquid discharge port;20, swing type whirl flow spray head array;21, whirl flow spray head;211, liquid injection port;212, spiral guide vane;22, universal joint;23, swing connecting rod;24, eccentric mechanism. DETAILED DESCRIPTION
[0038] To make the purpose, technical scheme and advantages of the utility model embodiment clearer, the technical scheme in the utility model embodiment will be clearly and completely described below in conjunction with the drawings in the utility model embodiment.
[0039] As Figures 1-4 shown, it is the first embodiment of a kind of graphene production's whirl flow cloth liquid mode's lye spray tower provided by the utility model, in the embodiment, including tower body 10, tower body 10 inside is provided with swing type whirl flow spray head array 20, swing type whirl flow spray head array 20 includes multiple whirl flow spray heads 21, universal joint 22, swing connecting rod 23 and eccentric mechanism 24;Whirl flow spray head 21 is connected with swing connecting rod 23 one end by universal joint 22, swing connecting rod 23 other end is connected with the cooperation of eccentric mechanism 24;Eccentric mechanism 24 is arranged in the inner wall of the top of tower body 10, swing connecting rod 23 extends to the inside of tower body 10 by the top of tower body 10, and multiple whirl flow spray heads 21 are distributed along the circumference of the inside of tower body 10.
[0040] Wherein, in the above technical scheme, whirl flow spray head 21 includes spray head body, and spiral guide vane 212 is arranged at liquid injection port 211 of spray head body, and spiral guide vane 212 is distributed in spiral around liquid injection port 211.
[0041] Further, in the above technical scheme, the spray head body is conical structure, and the liquid injection port 211 is located at the tapered tip end of the spray head body.
[0042] Further, in the above technical scheme, the universal joint 22 includes a first connecting part and a second connecting part hingedly connected to each other, the first connecting part is fixedly connected with the whirl flow spray head 21, and the second connecting part is fixedly connected with the swing connecting rod 23.
[0043] Further, in the above technical solution, the swing link 23 is a telescopic rod, the swing link 23 comprises an outer sleeve and an inner slide rod, the inner slide rod is slidably arranged in the outer sleeve, the inner slide rod is connected with the universal joint 22, and the outer sleeve is connected with the eccentric mechanism 24 in a matched mode.
[0044] Further, in the above technical solution, the eccentric mechanism 24 comprises an eccentric wheel, a driving shaft and a bearing seat, the driving shaft is fixedly connected with the eccentric wheel through a center hole of the eccentric wheel, the driving shaft is rotatably installed on an inner wall of a top of the tower body 10 through the bearing seat, and the swing link 23 is in matched contact with an outer periphery of the eccentric wheel.
[0045] Further, in the above technical solution, one end of the swing link 23 in contact with the eccentric wheel is provided with a roller, the roller is rotatably installed on an end of the swing link 23, and the roller is in rolling contact with the outer periphery of the eccentric wheel.
[0046] Further, in the above technical solution, the tower body 10 is internally provided with a support frame 11, a plurality of rotational flow nozzles 21 are installed on the support frame 11, and the support frame 11 is fixedly connected to the inner wall of the tower body 10.
[0047] Further, in the above technical solution, the support frame 11 comprises a plurality of arc-shaped support strips distributed in the circumferential direction of the tower body 10, adjacent arc-shaped support strips are fixedly connected through connecting rods, and the rotational flow nozzles 21 are installed on the arc-shaped support strips.
[0048] Further, in the above technical solution, the bottom of the tower body 10 is provided with a liquid discharge port 12, and a filter screen is arranged at the liquid discharge port 12.
[0049] Specifically, the principle of the utility model is as follows:
[0050] The technical principle of the utility model is based on mechanical transmission, fluid mechanics and mass transfer theory, the alkali liquor spraying tower component structure is innovatively designed, the alkali liquor spraying process is optimized, and efficient purification of graphene is realized. In terms of mechanical transmission, the eccentric mechanism is a core component for driving the rotational flow nozzle to swing. The eccentric mechanism is composed of an eccentric wheel, a driving shaft and a bearing seat, the driving shaft is fixedly connected through a center hole of the eccentric wheel, and is installed on an inner wall of a top of the tower body through the bearing seat. When the driving shaft is rotated under the driving of external power (such as a motor), the eccentric wheel rotates, the outer periphery of the eccentric wheel is in matched contact with the swing link due to the fact that the geometric center of the eccentric wheel is not coincident with the rotation center, and the swing link is pushed to reciprocating swing. The swing link is connected with the rotational flow nozzle through the universal joint, the universal joint adopts a first connecting part and a second connecting part that are hingedly connected with each other, the rotational flow nozzle is given multiple directional swing degrees of freedom, and thus the linear reciprocating motion of the swing link is converted into the periodic swing of the rotational flow nozzle, and dynamic motion basis is provided for alkali liquor spraying;
[0051] In fluid mechanics, the design of the cyclone nozzle is the key to achieve efficient dispersion and uniform distribution of lye. The nozzle body is conical structure and the liquid outlet is located at the tip of the cone, when the lye flows in the nozzle, due to the conical structure, the flow area gradually decreases, according to Bernoulli's principle, the flow rate of lye gradually increases, and when it is sprayed from the liquid outlet, it has a large jet pressure and speed. At the same time, the spiral guide vane arranged at the liquid outlet is distributed in a spiral around the liquid outlet, when the high-speed sprayed lye passes through the spiral guide vane, under the guidance of the guide vane, the lye produces rotating motion and forms stable cyclone. This rotating lye has good atomization and dispersion effect, and can cover the graphene material more uniformly inside the tower. In addition, the arrangement of the swing type cyclone nozzle array makes the spray trajectory of the lye change constantly during the swing of the cyclone nozzle, further expanding the coverage of the lye and enhancing the uniformity of the distribution of the lye on the cross section of the tower;
[0052] In the mass transfer theory, the utility model improves the contact frequency and contact area of lye and graphene, and strengthens the mass transfer process. Under the traditional fixed nozzle spraying mode, the mass transfer between lye and graphite mainly relies on natural diffusion under the action of gravity, and the mass transfer efficiency is low. In the utility model, the swing type cyclone nozzle array makes the lye form a dynamic cyclone trajectory, and the lye constantly contacts, separates and recontacts with the surface of the graphite, greatly increasing the contact frequency. At the same time, the good atomization and dispersion effect of the rotating lye and the enlarged coverage range of the nozzle swing significantly increase the contact area. According to the mass transfer theory, the mass transfer rate is proportional to the contact area and contact frequency, so the utility model effectively improves the mass transfer rate of impurities in lye and graphite, accelerates the chemical reaction, and improves the purification efficiency of graphite.
Claims
1. An alkaline spray tower using a swirl-distribution method for graphene production, characterized in that, The tower body is internally provided with a swing type rotating flow nozzle array, which comprises a plurality of rotating flow nozzles, a universal joint, a swing connecting rod and an eccentric wheel mechanism.
2. The spray tower according to claim 1, wherein the spray tower is a spray tower for producing graphene, and the spray tower is characterized by comprising: a spray tower body; a liquid supply device; a spray nozzle; and a rotating device. The rotating flow nozzle is connected with one end of the swing connecting rod through the universal joint, and the other end of the swing connecting rod is connected with the eccentric wheel mechanism in a matched mode.
3. The graphene production alkaline liquid spraying tower of the cyclone liquid distribution method according to claim 2, characterized in that, The eccentric wheel mechanism is arranged on the inner wall of the top of the tower body, and the swing connecting rod extends through the top of the tower body to the inside of the tower body.
4. The graphene production alkaline liquid spraying tower of the cyclone liquid distribution method according to claim 3, characterized in that, The rotating flow nozzle comprises a nozzle body, and a spiral guide vane is arranged at a liquid injection port of the nozzle body.
5. The graphene production alkaline liquid spraying tower of the cyclone liquid distribution method according to claim 4, characterized in that, The nozzle body is in a conical structure, and the liquid injection port is located at one end of the conical tip of the nozzle body.
6. The graphene production alkaline liquid spraying tower of the cyclone liquid distribution method according to claim 5, characterized in that, The universal joint comprises a first connecting part and a second connecting part which are hingedly connected with each other.
7. The graphene production alkaline liquid spraying tower of cyclone liquid distribution mode according to claim 6, characterized in that, The swing connecting rod is a telescopic rod, and comprises an outer sleeve and an inner slide rod.
8. The graphene production alkaline liquid spraying tower of the cyclone liquid distribution method according to claim 7, characterized in that, The inner slide rod is slidably arranged in the outer sleeve, and the inner slide rod is connected with the universal joint.
9. The graphene production alkaline liquid spraying tower of the cyclone liquid distribution method according to claim 8, characterized in that, The outer sleeve is connected with the eccentric wheel mechanism in a matched mode.
10. The graphene production alkaline liquid spraying tower of the cyclone liquid distribution method according to claim 9, characterized in that, The eccentric wheel mechanism comprises an eccentric wheel, a driving shaft and a bearing seat. The driving shaft is fixedly connected with the eccentric wheel through a central hole of the eccentric wheel. The driving shaft is rotatably installed on the inner wall of the top of the tower body through the bearing seat. The end of the swing connecting rod in contact with the eccentric wheel is provided with a roller. The roller is rotatably installed on the end of the swing connecting rod. The inside of the tower body is provided with a support frame. A plurality of rotating flow nozzles are installed on the support frame. The support frame is fixedly connected with the inner wall of the tower body. The support frame comprises a plurality of arc-shaped support strips which are distributed along the circumference of the tower body. Adjacent arc-shaped support strips are fixedly connected through connecting rods. The bottom of the tower body is provided with a liquid discharge port. A filter screen is arranged at the liquid discharge port.