Epoxy resin solid waste resin extraction device

Abstract

An epoxy resin solid waste resin extraction device comprises a reaction kettle (1), an extraction device (2) is arranged on the side edge of the reaction kettle (1), the extraction device (2) comprises a connecting pipe (21) arranged on the side edge of the reaction kettle (1), and a buffer tank (22) is arranged at the end of the connecting pipe (21); due to the fact that the connecting pipe (21) is arranged on the side edge of the reaction kettle (1), aged resin and a toluene solution can be directly extracted from the upper layer, waste water on the lower layer can be discharged through the discharging pipe (4) at the bottom end of the reaction kettle (1) after the aged resin and the toluene solution are extracted, the toluene solution does not need to be recycled in a distillation mode, and the cost is reduced. Clean production of epoxy resin is achieved, energy waste is reduced, and an observation structure (3) is arranged on a connecting pipe (21); and the observation structure (3) is used for judging the material flowing into the connecting pipe (21).

Description

Technical Field

[0001] The utility model belongs to the technical field of epoxy resins, and specifically relates to an epoxy resin solid waste resin extraction device. Background Art

[0002] In the production process of epoxy resin, the epoxy resin in the aged resin can be effectively extracted by toluene extraction, while the toluene in the aged resin is usually recovered by distillation.

[0003] Patent No. 202110968129.1, a public specification published on November 26, 2021, discloses an epoxy resin composite material and its preparation method and application. The preparation steps of the epoxy resin composite material are as follows: (1) nano oxide particles MO, template and ammonia water are subjected to microwave reaction with tetraethyl orthosilicate to obtain MO / SiO2 particles; (2) MO / SiO2 particles are reacted with 3-aminopropyltriethoxysilane to obtain amino-modified NH2-MO / SiO2 particles; (3) NH2-MO / SiO2 particles are dispersed in AgNO3 aqueous solution to obtain dispersion 1; (4) bisphenol A and epichlorohydrin are heated and stirred until they are mutually soluble to obtain dispersion 2; (5) dispersion 1 is slowly added dropwise to dispersion 2 and heated to react until the polycondensation reaction is completed. The preparation method of the epoxy resin composite material provided by the utility model has the advantages of simple process, mild conditions, energy saving and environmental protection. In addition, the coating made of the epoxy resin composite material prepared by the utility model not only has high mechanical properties, but also has good antibacterial activity, and the photocatalytic degradation efficiency of methyl orange can reach up to 96% within 45 minutes.

[0004] In the prior art, after toluene extraction, the toluene in the aged resin is usually recovered by distillation. However, the distillation method requires high energy consumption and is prone to risks such as leakage and environmental pollution. Utility Model Content

[0005] The utility model aims to provide an epoxy resin solid waste resin extraction device which is simple and convenient for recovering toluene solution.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an epoxy resin solid waste resin extraction device, including a reactor, the extraction device is arranged on the side of the reactor, the extraction device includes a connecting pipe arranged on the side of the reactor, and a buffer tank is provided at the end of the connecting pipe.

[0007] An observation structure is provided on the connecting pipe.

[0008] The observation structure comprises a channel-in-tube arranged on the connecting pipe, and an observation window is arranged on the channel-in-tube.

[0009] A discharge pipe is arranged at the bottom of the reaction kettle, and a return pipe is arranged between the discharge pipe and the connecting pipe.

[0010] The connecting pipe is provided with a main valve and a control valve.

[0011] The return pipe is provided with a reflux valve.

[0012] The return pipe is located on a side of the observation structure close to the reactor.

[0013] One end of the connecting pipe inserted into the reactor is provided with a feeding hopper.

[0014] A sealing plate is provided at one end of the connecting pipe inserted into the reactor, and the sealing plate is attached to the inner wall surface of the reactor.

[0015] The technical effect of the utility model is that the aged resin and toluene solution in the reaction kettle can be extracted into a buffer tank for storage by means of an extraction device, thereby achieving the purpose of recovering the toluene solution. There is no need to recover the toluene solution by distillation, thereby achieving clean production of epoxy resin and reducing energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] This specification includes the following drawings, which show the following contents:

[0017] Figure 1 This is a schematic diagram of the structure of an epoxy resin solid waste resin extraction device of the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the feed hopper of an epoxy resin solid waste resin extraction device.

[0019] The markings in the figure are: 1. Reactor; 2. Extraction device; 21. Connecting pipe; 22. Buffer tank; 3. Observation structure; 31. Mid-channel pipe; 32. Observation window; 4. Discharge pipe; 5. Return pipe; 6. Main valve; 7. Control valve; 8. Reflux valve; 9. Feed hopper; 10. Sealing plate. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the specific implementation methods of the utility model by describing the embodiments with reference to the accompanying drawings, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution of the utility model and facilitating its implementation.

[0021] See also Figure 1-2A device for extracting epoxy resin solid waste resin comprises a reactor 1, an extraction device 2 is arranged on the side of the reactor 1, the extraction device 2 comprises a connecting pipe 21 arranged on the side of the reactor 1, and a buffer tank 22 is arranged at the end of the connecting pipe 21; since the connecting pipe 21 is arranged on the side of the reactor 1, the aged resin and the toluene solution can be directly extracted from the upper layer, and the waste water in the lower layer can be discharged through the discharge pipe 4 at the bottom end of the reactor 1 after the aged resin and the toluene solution are extracted, which can effectively avoid the situation where a large amount of materials are wasted in the pipeline when the aged resin and the toluene solution are recovered from the bottom end of the reactor 1.

[0022] An observation structure 3 is provided on the connecting pipe 21 ; the observation structure 3 is used to determine what the material flowing into the connecting pipe 21 is.

[0023] The observation structure 3 comprises a channel-in-tube 31 arranged on the connecting pipe 21 , and an observation window 32 is provided on the channel-in-tube 31 ; the material in the channel-in-tube 31 is observed through the observation window 32 .

[0024] A discharge pipe 4 is provided at the bottom of the reactor 1 , and a return pipe 5 is provided between the discharge pipe 4 and the connecting pipe 21 ; waste water in the reactor 1 is discharged through the discharge pipe 4 , and waste water in the connecting pipe 21 is re-sent into the inlet and outlet pipes 4 through the return pipe 5 .

[0025] A main valve 6 and a control valve 7 are provided on the connecting pipe 21; the main valve 6 is used to control whether the connecting pipe 21 and the reactor 1 are connected, and the control valve 7 is used to control whether the connecting pipe 21 and the buffer tank 22 are connected, so as to control the toluene solution and the aged resin to flow into the buffer tank 22 for storage, thereby preventing waste water from entering the buffer tank 22.

[0026] The return pipe 5 is provided with a reflux valve 8; opening the reflux valve 8 allows the waste water in the connecting pipe 21 to flow into the inlet and outlet pipes 4, and closing the reflux valve 8 can prevent the aged resin and toluene solution from entering the outlet pipe 4.

[0027] The return pipe 5 is located on the side of the observation structure 3 close to the reactor 1, which can reduce the amount of waste water in the connecting pipe 21.

[0028] One end of the connecting pipe 21 inserted into the reactor 1 is provided with a feeding hopper 9 , which can better feed the materials in the reactor 1 into the connecting pipe 21 .

[0029] A sealing plate 10 is provided at one end of the connecting pipe 21 inserted into the reactor 1 , and the sealing plate 10 is attached to the inner wall surface of the reactor 1 , thereby reducing gaps and avoiding waste, while maintaining the stability of the reaction in the reactor 1 .

[0030] The technical effect of the utility model is: through the extraction device 2, the aged resin and toluene solution in the reactor 1 can be extracted into the buffer tank 22 for storage, so as to achieve the purpose of recovering the toluene solution. There is no need to recover the toluene solution by distillation, thereby realizing the clean production of epoxy resin and reducing energy waste.

[0031] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. An epoxy resin solid waste resin extraction device, comprising a reaction kettle (1), characterized in that: The extraction device (2) is arranged on the side of the reaction kettle (1), and the extraction device (2) comprises a connecting pipe (21) arranged on the side of the reaction kettle (1), and a buffer tank (22) is provided at the end of the connecting pipe (21).

2. The epoxy resin solid waste resin extraction device according to claim 1, characterized in that: An observation structure (3) is provided on the connecting pipe (21).

3. The epoxy resin solid waste resin extraction device according to claim 2, characterized in that: The observation structure (3) comprises a channel-in-tube (31) arranged on the connecting tube (21), and an observation window (32) is provided on the channel-in-tube (31).

4. An epoxy resin solid waste resin extraction device according to claim 1, 2 or 3, characterized in that: A discharge pipe (4) is provided at the bottom end of the reaction kettle (1), and a return pipe (5) is provided between the discharge pipe (4) and the connecting pipe (21).

5. The epoxy resin solid waste resin extraction device according to claim 2, characterized in that: The connecting pipe (21) is provided with a main valve (6) and a control valve (7).

6. The epoxy resin solid waste resin extraction device according to claim 4, characterized in that: The return pipe (5) is provided with a reflux valve (8).

7. The epoxy resin solid waste resin extraction device according to claim 4, characterized in that: The return pipe (5) is located on a side of the observation structure (3) close to the reaction kettle (1).

8. The epoxy resin solid waste resin extraction device according to claim 1, characterized in that: One end of the connecting pipe (21) inserted into the reaction kettle (1) is provided with a feed hopper (9).

9. An epoxy resin solid waste resin extraction device according to claim 1 or 8, characterized in that: One end of the connecting pipe (21) inserted into the reaction kettle (1) is provided with a sealing plate (10), and the sealing plate (10) is attached to the inner wall surface of the reaction kettle (1).

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