Solvent recovery device for production of carbon fiber reinforced epoxy resin composite material

Abstract

The invention relates to the field of carbon fiber reinforced epoxy resin composite material production, in particular to a solvent recovery device for carbon fiber reinforced epoxy resin composite material production, which comprises a tank body, support legs are mounted below the tank body, a heater is mounted at the bottom of the tank body, and a heating pipe is mounted below the inner wall of the tank body. In the distillation process, steam is conveyed along the multiple sets of butt joint pipes, meanwhile, the butt joint pipes are cooled through condensate water, so that the condensation effect is generated in the butt joint pipes, meanwhile, a connecting disc is driven by a motor to rotate, a solvent can fall onto the connecting disc, and meanwhile, a rubber scraper blade rotates along with the connecting disc, so that the solvent can fall into the butt joint pipes. And the turbofan is driven by the motor to synchronously rotate to stir the condensate water, so that the condition that the condensation effect of the butt joint pipe is reduced due to the fact that the condensate water is static is avoided, and the distillation recovery efficiency and quality are improved.

Description

Technical Field

[0001] The invention relates to the field of production of carbon fiber reinforced epoxy resin composite materials, and in particular to a solvent recovery device for production of carbon fiber reinforced epoxy resin composite materials. Background Art

[0002] Carbon fiber reinforced epoxy resin composite material is a new type of composite material composed of carbon fiber material and epoxy resin material, also known as carbon fiber reinforced plastic, mainly composed of carbon fiber and epoxy resin matrix. Carbon fiber as a reinforcing material has the characteristics of high strength, high modulus, low density, etc., while epoxy resin as a matrix material plays the role of bonding and supporting carbon fiber.

[0003] The patent application with announcement number CN212741199U, a carbon fiber reinforced resin-based composite material recovery device, relates to the technical field of carbon fiber recovery equipment. The device includes an atmosphere control system, a microwave pyrolysis system, a cracking oil collection system, and a cracking gas recovery system. The microwave pyrolysis system includes a microwave heating box, a microwave generator, a control system, and a quartz tube for holding materials. A thermocouple is arranged in the quartz tube for holding materials, and an infrared temperature measuring device is arranged on the top of the quartz tube for holding materials. The atmosphere control system keeps the quartz tube for holding materials in a vacuum, oxygen-free or oxygen-containing environment. The cracked gas enters the inclined condenser tube, and the condensed cracking oil enters the cracking oil collection bottle. The remaining gas enters the cracking gas collection bottle through the filter purification tube. The temperature of the reaction material is accurately obtained by the thermocouple and the infrared temperature measuring device, so that the heating temperature of the microwave can be more reasonably controlled; the cracking oil can be fully recovered by using the gravity of the cracking oil through the inclined condenser tube.

[0004] In the production process of the existing carbon fiber reinforced epoxy resin composite material, no matter what waste is generated and needs to be recycled, a large amount of waste solvents, such as benzyl alcohol, ethyl acetate, nitric acid aqueous solution and hydrogen supply solvent, are also generated in the fusion processing of the two materials, and most of the solvents need to be recycled to avoid impact on the environment and effectively reuse them. Among them, ethyl acetate is generally recovered by distillation during the recovery process, but the existing distillation method cannot ensure that all steam can be condensed evenly after heating is completed, thereby affecting the quality of recovery, and after heating, most of the steam will adhere to the wall of the heating kettle to produce water droplets, thereby causing reflux, ultimately affecting the recovery efficiency, thereby affecting the entire solvent recovery process.

[0005] Therefore, it is necessary to invent a solvent recovery device for producing carbon fiber reinforced epoxy resin composite materials to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to provide a solvent recovery device for the production of carbon fiber reinforced epoxy resin composite materials. The device can rotate a connecting disk and collect solvent droplets by driving a motor during distillation. At the same time, a turbofan can ensure that condensed water effectively cools the connecting pipe to avoid a decrease in the condensation effect, so as to solve the problem in the prior art that the condensation effect and efficiency after distillation cannot be guaranteed, thereby reducing the overall recovery efficiency.

[0007] In order to achieve the above-mentioned object, the present invention provides the following technical solution: a solvent recovery device for the production of carbon fiber reinforced epoxy resin composite materials, comprising a tank body, a support leg is installed below the tank body, a heater is installed at the bottom of the tank body, a heating pipe is installed below the inner wall of the tank body, and the heating pipe is fixedly connected to the heater;

[0008] The distillation heat recovery assembly disposed in the tank body comprises a partition plate 1, the partition plate 1 is mounted on the inner wall of the tank body, a partition plate 2 is mounted on the inner wall of the tank body, a condensation space is formed between the partition plate 2 and the partition plate 1, an air flow space is formed between the partition plate 1 and the upper part of the tank body, and a heating space is formed between the partition plate 2 and the lower part of the tank body;

[0009] The solvent recovery assembly arranged in the tank body comprises a rotating shaft, which is rotatably connected in the tank body and penetrates the first partition and the second partition. A connecting plate is installed below the rotating shaft and is located below the second partition.

[0010] As a preferred embodiment of the present invention, the distillation heat recovery component also includes a butt joint pipe, which is connected between partition one and partition two, and multiple groups of butt joint pipes are installed in a ring-shaped distribution, and the butt joint pipes are connected with the heating space and the airflow space, and multiple groups of conical rings are installed downward in sequence on the inner wall of each group of butt joint pipes.

[0011] As a preferred solution of the present invention, a water inlet pipe is installed on one side of the tank body, a water outlet pipe is installed on the side of the tank body away from the water inlet pipe, and the water inlet pipe and the water outlet pipe are connected to the inside of the condensation space.

[0012] As a preferred embodiment of the present invention, an exhaust pipe is installed above the tank body, and the exhaust pipe is connected to the air flow space above, an inlet pipe is installed on one side of the tank body, an outlet pipe is installed on the side of the tank body away from the inlet pipe, and the water inlet pipe and the water outlet pipe are connected to the interior of the heating space.

[0013] As a preferred solution of the present invention, the solvent recovery component also includes a motor, which is installed above the tank body, and the motor output end is connected to the shaft, a turbofan is sleeved and fixed on the shaft, and the turbofan is located in the condensation space.

[0014] As a preferred solution of the present invention, an annular groove is provided on the inner wall of the tank body, a positioning ring is sleeved and fixed on the connecting plate, and the positioning ring is slidably connected to the annular groove.

[0015] As a preferred solution of the present invention, a plurality of groups of through holes are provided in a ring shape on the surface of the connecting plate, a plurality of groups of partition frames are installed in a ring shape above the connecting plate, and the interior of each group of partition frames is covered with the corresponding through holes, a rubber scraper is installed at the upper edge of each group of partition frames, and the rubber scraper is fitted under the second partition.

[0016] As a preferred solution of the present invention, through grooves are symmetrically opened on the inner wall of the partition frame, and L-shaped baffles are symmetrically installed on the inner wall of the partition frame, and the L-shaped baffles are located at the lower edge of the through grooves.

[0017] As a preferred solution of the present invention, a plurality of connecting holes are arranged in a ring-shaped distribution at the connection between the rotating shaft and the connecting disk, and the connecting holes are connected to the interior of the rotating shaft. A fixing frame is installed on the inner wall of the tank body, and a recovery pipe is installed on the fixing frame, and the recovery pipe is connected to the interior of the rotating shaft.

[0018] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are as follows:

[0019] During the distillation process, steam is transported along multiple groups of docking tubes and the docking tubes are cooled by condensed water, thereby producing a condensation effect inside the docking tubes. At the same time, the connecting disk is rotated by the drive of a motor, so that the solvent can fall onto the connecting disk. At the same time, the rubber scraper rotates along the bottom of the second partition with the rotation of the connecting disk to collect the attached solvent droplets. The turbofan rotates synchronously under the drive of the motor to stir the condensed water to avoid the condensed water from stagnating, which causes the condensation effect of the docking tube to decrease, thereby improving the efficiency and quality of distillation recovery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal layout structure of the tank body of the present invention;

[0023] Figure 3 It is a schematic diagram of the tank body planing structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the layout structure of the butt-joint pipes of the present invention;

[0025] Figure 5 It is a schematic diagram of the installation structure of the tapered ring and the butt pipe of the present invention;

[0026] Figure 6 It is a schematic diagram of the layout structure of the connection disk of the present invention;

[0027] Figure 7 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0028] Figure 8 For the present invention Figure 2 Enlarged structural diagram at B in the middle.

[0029] Description of reference numerals:

[0030] 001, tank body; 101, supporting legs; 102, heater; 103, heating tube; 002, distillation heat recovery assembly; 201, partition one; 202, partition two; 203, docking tube; 204, conical ring; 205, water inlet pipe; 206, water outlet pipe; 207, exhaust pipe; 208, inlet pipe; 209, outlet pipe; 003, solvent recovery assembly; 301, motor; 302, rotating shaft; 303, turbofan; 304, annular groove; 305, connecting plate; 306, positioning ring; 307, through hole; 308, partition frame; 309, through groove; 310, L-shaped baffle; 311, connecting hole; 312, fixing frame; 313, recovery pipe; 314, rubber scraper. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] The present invention provides Figure 1-8 A solvent recovery device for the production of carbon fiber reinforced epoxy resin composite materials is shown, comprising a tank body 001, a support leg 101 is installed below the tank body 001, a heater 102 is installed at the bottom of the tank body 001, a heating pipe 103 is installed below the inner wall of the tank body 001, and the heating pipe 103 is fixedly connected to the heater 102;

[0033] The heater 102 can electrically heat the heating tube 103, so that the heating tube 103 can heat the solvent;

[0034] The distillation heat recovery assembly 002 disposed in the tank body 001 includes a partition 1 201, which is mounted on the inner wall of the tank body 001, and a partition 202 is mounted on the inner wall of the tank body 001, and a condensation space is formed between the partition 202 and the partition 1 201, and an air flow space is formed between the partition 1 201 and the upper part of the tank body 001, and a heating space is formed between the partition 202 and the lower part of the tank body 001;

[0035] The tank body 001 can be divided into three parts by partition 1 201 and partition 2 202 .

[0036] The solvent recovery assembly 003 disposed in the tank body 001 includes a rotating shaft 302, which is rotatably connected in the tank body 001 and penetrates the partition 1 201 and the partition 2 202. A connecting plate 305 is installed below the rotating shaft 302, and the connecting plate 305 is located below the partition 202.

[0037] The connecting plate 305 can be driven to rotate under the second partition plate 202 by the rotating shaft 302, and a sealing setting is adopted when the rotating shaft 302 rotates, so as to ensure the sealing inside the three groups of spaces.

[0038] Furthermore, in the above structure, the distillation heat recovery component 002 also includes a docking tube 203, which is connected between the partition 1 201 and the partition 2 202, and multiple groups of the docking tubes 203 are installed in a ring-shaped distribution, and the docking tubes 203 are connected with the heating space and the airflow space, and multiple groups of conical rings 204 are installed downward in sequence on the inner wall of each group of docking tubes 203.

[0039] The butt joint 203 allows the steam in the heating space to flow upward and eventually move into the airflow space, and under the action of the conical ring 204, the steam can fully contact the conical ring 204, so that the solvent can be recovered, and the butt joint 203 is affected by the condensed water inside the condensation space, which will make the space passing through it at a lower temperature.

[0040] Furthermore, in the above structure, a water inlet pipe 205 is installed on one side of the tank body 001, and a water outlet pipe 206 is installed on the side of the tank body 001 away from the water inlet pipe 205, and the water inlet pipe 205 and the water outlet pipe 206 are connected to the inside of the condensation space.

[0041] Through the arrangement of the water outlet pipe 206 and the water outlet pipe 206 , the condensed water can flow uninterruptedly in the condensation space through external power.

[0042] Furthermore, in the above structure, an exhaust pipe 207 is installed above the tank body 001, and the exhaust pipe 207 is connected to the air flow space above, an inlet pipe 208 is installed on one side of the tank body 001, an outlet pipe 209 is installed on the side of the tank body 001 away from the inlet pipe 208, and the water inlet pipe 205 and the water outlet pipe 206 are connected to the interior of the heating space.

[0043] The recovered solvent can be transported to the interior of the heating space through the water inlet pipe 205 and the water outlet pipe 206 by external power.

[0044] Furthermore, in the above structure, the solvent recovery component 003 also includes a motor 301, which is installed above the tank body 001, and the output end of the motor 301 is axially connected to the rotating shaft 302, and a turbofan 303 is sleeved and fixed on the rotating shaft 302, and the turbofan 303 is located in the condensation space.

[0045] The motor 301 can drive the rotating shaft 302 to rotate, so that the turbofan 303 rotates in the condensation space, so that the condensed water is stirred, thereby preventing the condensed water temperature around the butt joint 203 from rising and affecting the condensation effect inside the butt joint 203.

[0046] Furthermore, in the above structure, an annular groove 304 is provided on the inner wall of the tank body 001 , a positioning ring 306 is sleeved and fixed on the connecting plate 305 , and the positioning ring 306 is slidably connected to the annular groove 304 .

[0047] Through the cooperation between the positioning ring 306 and the annular groove 304 , the connecting disk 305 can stably rotate in the tank body 001 .

[0048] Furthermore, in the above structure, a plurality of groups of through holes 307 are provided in a ring shape on the surface of the connecting plate 305, a plurality of groups of partition frames 308 are installed in a ring shape above the connecting plate 305, and the interior of each group of partition frames 308 is covered with the corresponding through holes 307, and a rubber scraper 314 is installed at the upper edge of each group of partition frames 308, and the rubber scraper 314 is fitted under the second partition plate 202.

[0049] By rotating the connecting disk 305, the rubber scraper 314 can be fitted with the surface of the partition 202, so that the water droplets condensed under the partition 202 can be collected and finally fall into the space formed by each group of partitions 202, and then be collected by the connecting disk 305, and the solvent water droplets inside the connecting tube 203 also need to be collected by the connecting disk 305.

[0050] Furthermore, in the above structure, through grooves 309 are symmetrically opened on the inner wall of the partition frame 308 , and L-shaped baffles 310 are symmetrically installed on the inner wall of the partition frame 308 , and the L-shaped baffles 310 are located at the lower edge of the through grooves 309 .

[0051] The solvent droplets falling into the bulkhead 308 can be collected by the L-shaped baffle 310 and finally fall into the connecting disk 305, thereby avoiding the solvent backflow.

[0052] Furthermore, in the above structure, a plurality of connection holes 311 are arranged in a ring-shaped distribution at the connection between the rotating shaft 302 and the connecting plate 305, and the connection holes 311 are communicated with the interior of the rotating shaft 302, a fixing frame 312 is installed on the inner wall of the tank body 001, a recovery pipe 313 is installed on the fixing frame 312, and the recovery pipe 313 is communicated with the interior of the rotating shaft 302.

[0053] The solvent collected in the connection disk 305 can flow into the recovery pipe 313 along the connection hole 311 through the connection hole 311 .

[0054] like Figure 1-8 As shown, the solvent generated during production is transported to the inside of the tank body 001 through the inlet pipe 208, and the condensed water is transported between the partition 1 201 and the partition 2 202 along the water inlet pipe 205. At this time, the heating tube 103 is heated by the heater 102, so that the recovered solvent generates steam after being heated, and the steam is transported upward at the same time. At this time, the steam will continue to be transported upward through the docking tube 203, and because the temperature inside the docking tube 203 is relatively low, it condenses with the conical ring 204 in the process, and finally the water droplets of the solvent drip down along the docking tube 203 onto the connecting disk 305, and the motor 301 drives the rotating shaft 302 to rotate, so that the rubber scraper 314 and the partition 2 202 are rotated while the connecting disk 305 rotates. The bottom is fitted together, so that the solvent water droplets under the partition 202 are scraped off and fall into the connecting plate 305, and finally the recovery operation is completed along the recovery pipe 313. At the same time, the rotating shaft 302 will drive the turbofan 303 to rotate, so that the condensed water can be in an active state, avoiding the condensed water temperature around the connecting pipe 203 to increase and affect the recovery effect, and the L-shaped baffle 310 can ensure that the dripping water droplets can be recovered without affecting the rising of steam to avoid reflux. By rotating the connecting plate 305 during distillation recovery, the dripping of water droplets can be reduced, and the solvent recovery can be completed at the same time. The stirring of the condensed water can avoid the stagnation of water flow and improve the condensation effect, thereby improving the efficiency and quality of distillation recovery.

[0055] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A solvent recovery device for the production of carbon fiber reinforced epoxy resin composite materials, comprising a tank body (001), characterized in that: A support leg (101) is installed below the tank body (001), a heater (102) is installed at the bottom of the tank body (001), a heating pipe (103) is installed below the inner wall of the tank body (001), and the heating pipe (103) is fixedly connected to the heater (102); The distillation heat recovery assembly (002) disposed in the tank body (001) comprises a partition plate 1 (201), wherein the partition plate 1 (201) is mounted on the inner wall of the tank body (001), a partition plate 2 (202) is mounted on the inner wall of the tank body (001), a condensation space is formed between the partition plate 2 (202) and the partition plate 1 (201), an air flow space is formed between the partition plate 1 (201) and the upper part of the tank body (001), and a heating space is formed between the partition plate 2 (202) and the lower part of the tank body (001); The solvent recovery assembly (003) disposed in the tank body (001) includes a rotating shaft (302), wherein the rotating shaft (302) is rotatably connected in the tank body (001), and the rotating shaft (302) penetrates the partition plate 1 (201) and the partition plate 2 (202), and a connecting plate (305) is installed below the rotating shaft (302), and the connecting plate (305) is located below the partition plate 2 (202).

2. The solvent recovery device for producing carbon fiber reinforced epoxy resin composite materials according to claim 1, characterized in that: The distillation heat recovery component (002) also includes a butt joint (203), which is connected between the partition plate 1 (201) and the partition plate 2 (202), and is installed in multiple groups in a ring-shaped distribution. The butt joint (203) is connected with the heating space and the air flow space, and multiple groups of conical rings (204) are installed downward in sequence on the inner wall of each group of the butt joint (203).

3. The solvent recovery device for producing carbon fiber reinforced epoxy resin composite materials according to claim 1, characterized in that: A water inlet pipe (205) is installed on one side of the tank body (001), and a water outlet pipe (206) is installed on the side of the tank body (001) away from the water inlet pipe (205), and the water inlet pipe (205) and the water outlet pipe (206) are connected to the interior of the condensation space.

4. The solvent recovery device for producing carbon fiber reinforced epoxy resin composite materials according to claim 3, characterized in that: An exhaust pipe (207) is installed above the tank body (001), and the exhaust pipe (207) is connected to the air flow space above. An inlet pipe (208) is installed on one side of the tank body (001), and an outlet pipe (209) is installed on the side of the tank body (001) away from the inlet pipe (208), and the water inlet pipe (205) and the water outlet pipe (206) are connected to the interior of the heating space.

5. The solvent recovery device for producing carbon fiber reinforced epoxy resin composite materials according to claim 1, characterized in that: The solvent recovery component (003) further comprises a motor (301), wherein the motor (301) is mounted above the tank body (001), and the output end of the motor (301) is axially connected to a rotating shaft (302), a turbofan (303) is sleeved and fixed on the rotating shaft (302), and the turbofan (303) is located in the condensation space.

6. The solvent recovery device for producing carbon fiber reinforced epoxy resin composite materials according to claim 5, characterized in that: An annular groove (304) is provided on the inner wall of the tank body (001), a positioning ring (306) is sleeved and fixed on the connecting plate (305), and the positioning ring (306) is slidably connected to the annular groove (304).

7. The solvent recovery device for producing carbon fiber reinforced epoxy resin composite materials according to claim 6, characterized in that: The surface of the connection plate (305) is provided with a plurality of groups of through holes (307) in a ring shape, and a plurality of groups of partition frames (308) are installed in a ring shape above the connection plate (305), and the interior of each group of partition frames (308) is covered with the corresponding through holes (307), and a rubber scraper (314) is installed at the upper edge of each group of the partition frames (308), and the rubber scraper (314) is fitted with the lower side of the partition plate 2 (202).

8. The solvent recovery device for producing carbon fiber reinforced epoxy resin composite materials according to claim 7, characterized in that: The inner wall of the partition frame (308) is symmetrically provided with through grooves (309), and the inner wall of the partition frame (308) is symmetrically provided with L-shaped baffles (310), and the L-shaped baffles (310) are located at the lower edge of the through grooves (309).

9. The solvent recovery device for producing carbon fiber reinforced epoxy resin composite materials according to claim 1, characterized in that: A plurality of connection holes (311) are arranged in an annular arrangement at the connection point between the rotating shaft (302) and the connection disk (305), and the connection holes (311) are connected to the interior of the rotating shaft (302). A fixing frame (312) is installed on the inner wall of the tank body (001), and a recovery pipe (313) is installed on the fixing frame (312), and the recovery pipe (313) is connected to the interior of the rotating shaft (302).

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