Carbon fiber sizing agent waste liquid treatment device
By designing a carbon fiber sizing agent waste liquid treatment device, using hot oil and steam to promote the polymerization of the sizing agent and the solid-liquid separation, the problem of high cost of sizing agent waste liquid treatment is solved, and efficient and low-cost waste liquid treatment effect is achieved.
Patent Information
- Application Number
- CN202421651808.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The waste liquid of carbon fiber sizing agent is costly to be treated, and it is difficult for the prior art to effectively reduce organic matter concentration to meet emission standards.
A carbon fiber sizing agent waste liquid treatment device is designed, including a container, a waste liquid tank and an inner coil. It is heated by hot oil and introduced into the steam through the inner coil. Heat is transferred to the sizing agent, which promotes its polymerization reaction and solid-liquid separation. The bottom of the waste liquid tank is arranged inclined to discharge the liquid part.
Through this device, the cost of waste liquid treatment can be greatly reduced, the overall structure is compact, the space is small, it is easy to layout and operation, and it is highly practical.
Smart Images
Figure CN222821274U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste liquid treatment, in particular to a carbon fiber sizing agent waste liquid treatment device. Background Art
[0002] Carbon fiber is an inorganic fiber material with a carbon mass fraction of more than 90%. It has the advantages of high strength, high specific modulus, high temperature corrosion resistance, good electrical and thermal conductivity, etc. It is widely used in various industries such as aerospace, transportation, etc.
[0003] During the production and processing of carbon fiber, since carbon fiber precursor is a brittle material, it is easy to fluff and break, which leads to a decrease in the mechanical properties of the obtained carbon fiber product. It is necessary to select and replace different sizing agents for sizing the surface of the carbon fiber precursor according to the precursor preparation process or the parameter requirements of the downstream composite products, such as polyacrylonitrile precursor prepared by wet and dry-jet wet spinning processes, so that the surface of the carbon fiber is coated with a layer of organic film material, thereby improving the bundling and wear resistance of the carbon fiber precursor, reducing the occurrence of fluffing and breakage, and at the same time improving the wettability of the resin to the carbon fiber, enhancing the interface adhesion, and improving the mechanical properties of the carbon fiber composite material, especially the interlaminar shear strength.
[0004] Since the sizing agent used contains about 5% organic matter, it cannot be discharged directly into sewage. The waste liquid needs to be treated so that the organic matter concentration reaches the discharge standard before it can be discharged.
[0005] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or any form of implication that the information constitutes the prior art known to those skilled in the art. Utility Model Content
[0006] The technical problem to be solved by the utility model is to provide a carbon fiber sizing agent waste liquid treatment device to reduce the cost of carbon fiber sizing agent waste liquid treatment.
[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a carbon fiber sizing agent waste liquid treatment device, comprising: a container, a waste liquid tank and an inner coil, the inner cavity of the container receives hot oil, the waste liquid tank is arranged at the top of the container, and the bottom and side walls of the waste liquid tank are both located in the inner space of the container, the waste liquid tank receives sizing agent, the inner coil is spirally coiled in the height direction and arranged in the container, and hot steam is circulated in the inner coil;
[0008] Among them, a drain port is arranged on the side wall of the container, and the drain port passes through the side wall of the waste liquid tank close to the bottom and is connected with the inside of the waste liquid tank, and the bottom of the waste liquid tank is inclined toward the side where the drain port is located to form a height difference.
[0009] Furthermore, an air inlet and an air outlet are provided on the side wall of the container opposite to the liquid discharge port. The air inlet is located at one end of the container close to the bottom of the tank, and the air outlet is located at one end of the container close to the waste liquid tank. The air inlet and the air outlet are respectively connected to the two ends of the inner coil.
[0010] Furthermore, the inner coil includes an inner ring layer and an outer ring layer, and the spiral radius of the inner ring layer is smaller than the spiral radius of the outer ring layer; an air inlet switching pipe and an air outlet switching pipe are respectively provided at the air inlet and the air outlet, and the switching pipe is located inside the container, the air inlet switching pipe connects the inner ring layer, the outer ring layer and the air inlet, and the air outlet switching pipe connects the inner ring layer, the outer ring layer and the air outlet.
[0011] Furthermore, a bracket is fixedly arranged in the container, and the bracket includes a cross bar, a first vertical bar and a second vertical bar, the cross bar is arranged in a horizontal direction, and one end is fixedly connected to the inner wall of the container, the first vertical bar and the second vertical bar are both arranged in a vertical direction, the two ends of the first vertical bar are respectively fixedly connected to the other end of the cross bar and the inner wall of the groove bottom of the container, the two ends of the second vertical bar are respectively fixedly connected to the middle part of the cross bar and the inner wall of the groove bottom of the container, the outer side wall of the inner circle layer is fixedly connected to the side of the first vertical bar away from the second vertical bar, and the outer side wall of the outer circle layer is fixedly connected to the side of the second vertical bar facing the first vertical bar.
[0012] Furthermore, an oil overflow port and an oil overflow groove are provided on the top side wall of the container. The oil overflow port is communicated with the interior of the container, and one end located outside the container is connected to the oil overflow groove through a flange.
[0013] Furthermore, the bottom of the oil overflow groove is arranged to be in an inverted cone shape, and the bottom of the oil overflow groove is connected to the oil overflow port.
[0014] Furthermore, a temperature measuring port is provided at the top of the container, and the axis of the temperature measuring port is parallel to the axis of the container.
[0015] Furthermore, a drain port is provided on the side wall of the bottom of the container, the drain port is communicated with the internal cavity of the container, and the axis of the drain port and the axis of the liquid discharge port are arranged parallel to each other.
[0016] Furthermore, the outer side wall of the bottom of the container is provided with wheels, four wheels are provided, and the bottom of the container is rotatably connected.
[0017] Furthermore, a handle is fixedly provided on the outer side wall of the container, and two handles are provided and located at two ends of the container in a radial direction.
[0018] The beneficial effects of the utility model are as follows: when the carbon fiber sizing agent waste liquid treatment device is used to treat the sizing agent waste liquid, the sizing agent is introduced into the waste liquid tank, and steam with a set temperature is introduced into the container through the inner coil to heat the hot oil, so that the heat of the hot oil is transferred to the sizing agent through the bottom and side walls of the waste liquid tank, so that the sizing agent undergoes a polymerization reaction and solid-liquid separation, and the liquid part of the sizing agent formed by the separation can be directly discharged through the drain port through the inclined bottom of the waste liquid tank, thereby greatly reducing the cost of waste liquid treatment, and the overall device has a compact structure, occupies a small space, is easy to layout and operate, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 This is a front view of a carbon fiber sizing agent waste liquid treatment device in an embodiment of the utility model;
[0021] Figure 2 It is a top view of a carbon fiber sizing agent waste liquid treatment device in an embodiment of the utility model;
[0022] Figure 3 for Figure 2 Sectional view at AA in the middle;
[0023] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0024] Figure numerals: 1. container; 2. waste liquid tank; 3. inner coil; 3a. inner ring layer; 3b. outer ring layer; 4. drain port; 5. air inlet; 5a. air inlet transfer tube; 6. air outlet; 6a. air outlet transfer tube; 7. bracket; 7a. cross bar; 7b. first vertical bar; 7c. second vertical bar; 8. oil overflow port; 9. oil overflow tank; 10. temperature measuring port; 11. drain port; 12. wheels; 13. handle. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0026] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.
[0028] like Figures 1 to 4 The carbon fiber sizing agent waste liquid treatment device shown comprises: a container 1, a waste liquid tank 2 and an inner coil 3, the inner cavity of the container 1 is connected with hot oil, the waste liquid tank 2 is arranged on the top of the container 1, and the bottom and side walls of the waste liquid tank 2 are both located in the inner space of the container 1, the waste liquid tank 2 holds sizing agent, the inner coil 3 is spirally coiled in the height direction and arranged in the container 1, and hot steam is circulated in the inner coil 3;
[0029] Among them, a drain port 4 is arranged on the side wall of the container 1, and the drain port 4 passes through the side wall of the waste liquid tank 2 close to the bottom and is connected with the inside of the waste liquid tank 2, and the bottom of the waste liquid tank 2 is inclined toward the side where the drain port 4 is located to form a height difference.
[0030] The utility model uses a carbon fiber sizing agent waste liquid treatment device to treat the sizing agent waste liquid. When the sizing agent is treated with waste liquid, the sizing agent is introduced into a waste liquid tank 2, and steam with a set temperature is introduced into a container 1 through an inner coil 3 to heat the hot oil, so that the heat of the hot oil is transferred to the sizing agent through the bottom and side walls of the waste liquid tank 2, so that the sizing agent undergoes a polymerization reaction and solid-liquid separation. Through the inclined bottom of the waste liquid tank 2, the separated sizing agent liquid part can be directly discharged through the drain port 4, thereby greatly reducing the cost of waste liquid treatment. The overall device has a compact structure, occupies a small space, is easy to layout and operate, and has strong practicality.
[0031] It should be noted that the temperature of the hot steam introduced into the inner coil 3 is about 100° C. At this temperature, the sizing agent can undergo polymerization reaction, thereby ensuring solid-liquid separation and separating the liquid portion of the sizing agent from the drain port 4 .
[0032] On the basis of the above embodiment, an air inlet 5 and an air outlet 6 are provided on the side wall of the container 1 opposite to the discharge port 4. The air inlet 5 is located at the end of the container 1 close to the bottom of the tank, and the air outlet 6 is located at the end of the container 1 close to the waste liquid tank 2. The air inlet 5 and the air outlet 6 are respectively connected to the two ends of the inner coil 3; by controlling the opening and closing of the air inlet 5 and the air outlet 6, the hot steam content and flow rate entering the container 1 can be accurately controlled to achieve uniform heat exchange, provide suitable conditions for the polymerization reaction of the sizing agent in the waste liquid tank 2, and promote the polymerization reaction.
[0033] On the basis of the above embodiment, the inner coil 3 includes an inner ring layer 3a and an outer ring layer 3b, and the spiral radius of the inner ring layer 3a is smaller than the spiral radius of the outer ring layer 3b; an air inlet switching pipe 5a and an air outlet switching pipe 6a are respectively arranged at the air inlet 5 and the air outlet 6, and the switching pipes are located inside the container 1, the air inlet switching pipe 5a connects the inner ring layer 3a, the outer ring layer 3b and the air inlet 5, and the air outlet switching pipe 6a connects the inner ring layer 3a, the outer ring layer 3b and the air outlet 6; by setting the inner ring layer 3a and the outer ring layer 3b with different spiral radii, the heat exchange area between the hot steam in the inner coil 3 and the hot oil in the container 1 can be increased, so that the heat exchange effect is more uniform, reducing the risk of local overheating, thereby further improving the heat exchange efficiency; the setting of the air inlet switching pipe 5a and the air outlet switching pipe 6a only requires setting a separate air inlet 5 and the air outlet 6 to control the entry and exit of hot steam in the inner ring layer 3a and the outer ring layer 3b, simplifying the operation process.
[0034] On the basis of the above embodiment, a bracket 7 is fixedly arranged in the container 1, and the bracket 7 includes a cross bar 7a, a first vertical bar 7b and a second vertical bar 7c. The cross bar 7a is arranged in the horizontal direction, and one end is fixedly connected to the inner wall of the container 1, and the first vertical bar 7b and the second vertical bar 7c are both arranged in the vertical direction. The two ends of the first vertical bar 7b are respectively fixedly connected to the other end of the cross bar 7a and the inner wall of the groove bottom of the container 1, and the two ends of the second vertical bar 7c are respectively fixedly connected to the middle part of the cross bar 7a and the inner wall of the groove bottom of the container 1, the outer side wall of the inner ring layer 3a is fixedly connected to the side of the first vertical bar 7b away from the second vertical bar 7c, and the outer side wall of the outer ring layer 3b is fixedly connected to the side of the second vertical bar 7c toward the first vertical bar 7b.
[0035] The setting of the bracket 7 provides stable support for the inner coil 3, ensures the stability of the inner ring layer 3a and the outer ring layer 3b during the heating process, and prevents deformation or dislocation caused by thermal expansion or pressure changes; by setting the first vertical rod 7b and the second vertical rod 7c, it helps to distribute the inner ring layer 3a and the outer ring layer 3b more evenly in the container 1, so that the heat of the hot oil can be more evenly transferred to the sizing agent in the waste liquid tank 2; it can also protect the inner coil 3 from mechanical shock and vibration, thereby extending the service life of the equipment.
[0036] On the basis of the above embodiment, an oil overflow port 8 and an oil overflow groove 9 are provided on the top side wall of the container 1. The oil overflow port 8 is communicated with the interior of the container 1, and one end located outside the container 1 is connected to the oil overflow groove 9 through a flange. The design of the oil overflow port 8 can guide the excess volume of hot oil into the oil overflow groove 9 through the oil overflow port 8 when the internal pressure or liquid level of the container 1 is too high, thereby preventing the internal high-temperature liquid from overflowing the container 1 and causing environmental pollution or equipment damage, thereby ensuring the safety of operation.
[0037] On the basis of the above-mentioned embodiment, the bottom of the oil overflow groove 9 is set to be an inverted cone, and the bottom of the oil overflow groove 9 is connected to the oil overflow port 8; the inverted cone bottom design helps to concentrate the waste liquid to flow to the oil overflow port 8, so that when the liquid level inside the container 1 drops, the hot oil in the oil overflow groove 9 can be automatically replenished into the container 1, avoiding the need for additional manual operation and reducing risks.
[0038] On the basis of the above embodiment, a temperature measuring port 10 is arranged on the top of the container 1, and the axis of the temperature measuring port 10 is arranged parallel to the axis of the container 1. The temperature inside the container 1 can be monitored in real time through the temperature measuring port 10, and abnormal conditions can be discovered in time and measures can be taken to prevent safety accidents caused by excessively high temperature or the polymerization reaction of the sizing agent cannot proceed smoothly due to excessively low temperature, thereby ensuring the stability and reliability of the waste liquid treatment process.
[0039] On the basis of the above embodiment, a drain port 11 is provided on the bottom side wall of the container 1, the drain port is connected to the internal cavity of the container 1, and the axis of the drain port 11 is arranged parallel to the axis of the drain port 4; the setting of the drain port 11 helps to completely drain the hot oil inside the container 1 after the waste liquid treatment process is completed, so as to thoroughly clean the inside of the container 1, ensure the cleanliness of the container 1, and prepare for the next waste liquid treatment process.
[0040] On the basis of the above-mentioned embodiment, wheels 12 are arranged on the outer side wall at the bottom of the container 1, four wheels 12 are arranged, and the bottom of the container 1 is rotatably connected; the need for manual handling is reduced, so that the container 1 can be conveniently moved inside the factory, the flexibility and mobility of the equipment are improved, and the operating efficiency of the entire production line is improved.
[0041] On the basis of the above embodiment, a handle 13 is fixedly provided on the outer wall of the container 1, and two handles 13 are provided, which are located at the radial ends of the container 1; the handle 13 can be used as a gripping point for the operator when transferring the container 1, so that the operator can grasp the container 1 more stably, reduce accidents caused by hand slippage, and avoid direct contact with the side wall of the cylinder to cause burns and other injuries, thereby ensuring the safety of the operation process.
[0042] Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the description are only for explaining the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A carbon fiber sizing agent waste liquid treatment device, characterized in that: include: A container, a waste liquid tank and an inner coil, wherein the inner cavity of the container receives hot oil, the waste liquid tank is arranged at the top of the container, and the bottom and side walls of the waste liquid tank are both located in the inner space of the container, the waste liquid tank receives sizing agent, the inner coil is spirally wound in the height direction and arranged in the container, and hot steam is circulated in the inner coil; Among them, a drain port is arranged on the side wall of the container, and the drain port passes through the side wall of the waste liquid tank close to the bottom and is connected with the inside of the waste liquid tank, and the bottom of the waste liquid tank is inclined toward the side where the drain port is located to form a height difference.
2. The carbon fiber sizing agent waste liquid treatment device according to claim 1, characterized in that: An air inlet and an air outlet are provided on the side wall of the container opposite to the liquid discharge port. The air inlet is located at one end of the container close to the bottom of the tank, and the air outlet is located at one end of the container close to the waste liquid tank. The air inlet and the air outlet are respectively connected to the two ends of the inner coil.
3. The carbon fiber sizing agent waste liquid treatment device according to claim 2, characterized in that: The inner coil includes an inner ring layer and an outer ring layer, and the spiral radius of the inner ring layer is smaller than the spiral radius of the outer ring layer; an air inlet switching pipe and an air outlet switching pipe are respectively provided at the air inlet and the air outlet, and the switching pipe is located inside the container. The air inlet switching pipe connects the inner ring layer, the outer ring layer and the air inlet, and the air outlet switching pipe connects the inner ring layer, the outer ring layer and the air outlet.
4. The carbon fiber sizing agent waste liquid treatment device according to claim 3, characterized in that: A bracket is fixedly arranged in the container, and the bracket includes a cross bar, a first vertical bar and a second vertical bar, the cross bar is arranged in the horizontal direction, and one end is fixedly connected to the inner wall of the container, the first vertical bar and the second vertical bar are both arranged in the vertical direction, the two ends of the first vertical bar are respectively fixedly connected to the other end of the cross bar and the inner wall of the groove bottom of the container, the two ends of the second vertical bar are respectively fixedly connected to the middle part of the cross bar and the inner wall of the groove bottom of the container, the outer side wall of the inner circle layer is fixedly connected to the side of the first vertical bar facing away from the second vertical bar, and the outer side wall of the outer circle layer is fixedly connected to the side of the second vertical bar facing the first vertical bar.
5. The carbon fiber sizing agent waste liquid treatment device according to claim 1, characterized in that: An oil overflow port and an oil overflow groove are arranged on the top side wall of the container. The oil overflow port is communicated with the interior of the container, and one end located outside the container is connected with the oil overflow groove through a flange.
6. The carbon fiber sizing agent waste liquid treatment device according to claim 5, characterized in that: The bottom of the oil overflow groove is arranged in an inverted cone shape, and the bottom of the oil overflow groove is connected to the oil overflow port.
7. The carbon fiber sizing agent waste liquid treatment device according to claim 1, characterized in that: A temperature measuring port is arranged on the top of the container, and the axis of the temperature measuring port and the axis of the container are arranged parallel to each other.
8. The carbon fiber sizing agent waste liquid treatment device according to claim 1, characterized in that: A drain port is arranged on the side wall of the bottom of the container, the drain port is communicated with the inner cavity of the container, and the axis of the drain port is arranged parallel to the axis of the liquid discharge port.
9. The carbon fiber sizing agent waste liquid treatment device according to claim 1, characterized in that: The outer side wall of the bottom of the container is provided with wheels, four wheels are provided, and the bottom of the container is rotatably connected.
10. The carbon fiber sizing agent waste liquid treatment device according to claim 1, characterized in that: A handle is fixedly arranged on the outer side wall of the container, and two handles are arranged and located at two ends of the container in the radial direction.