Device for extracting raw materials from ethylene glycol antimony by-products

Abstract

The utility model relates to the technical field of chemical raw material recovery, in particular to a raw material extraction device in ethylene glycol antimony by-products, which comprises a by-product storage tank and a rectifying tower, a reboiler is arranged at the bottom of the rectifying tower, the bottom of the by-product storage tank is connected to the upper end of the rectifying tower through a pipeline, and a vacuumizing pipeline is arranged at the top of the rectifying tower. The vacuumizing pipeline is connected to the vacuum buffer tank, a first condenser is arranged on the vacuumizing pipeline, the first condenser is connected with the process water storage tank through a pipeline, the bottom of the rectifying tower is connected with the capturing tank through a pipeline, and the middle part of the rectifying tower is connected with the ethylene glycol tank through a pipeline. According to the raw material extraction device for the ethylene glycol antimony by-product, heating and vacuumizing are carried out in the rectifying tower, water in the ethylene glycol antimony by-product is separated, then ethylene glycol is separated from a solid principle, raw material extraction is achieved, energy waste is avoided, the environment is protected, and meanwhile energy consumption is reduced through steam heating and negative pressure extraction.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical raw material recovery technical field especially a kind of raw material extraction device in ethylene glycol antimony by-product. BACKGROUND

[0002] Ethylene glycol antimony is an important catalyst, which often produces a large amount of by-products in the production process. These by-products usually contain unreacted raw materials, such as ethylene glycol. If discarded directly, not only causes resource waste, but also causes environmental pollution. Therefore, a set of extraction device is designed for extracting raw materials in ethylene glycol antimony by-products. SUMMARY

[0003] The utility model discloses in order to solve above-mentioned technical deficiency and provide a kind of raw material extraction device in ethylene glycol antimony by-product, the raw material in ethylene glycol antimony by-product can be effectively extracted separation, to realize recycling, reduce resource waste.

[0004] The utility model discloses a kind of raw material extraction device in ethylene glycol antimony by-product, including by-product storage tank, still including rectifying column, reboiler is arranged at the bottom of rectifying column, steam input pipe and steam output pipe are arranged on the reboiler, the bottom of by-product storage tank is connected to the upper end of rectifying column by pipeline, first solenoid valve and first delivery pump are arranged on the pipeline between by-product storage tank and rectifying column, vacuum extraction pipeline is arranged at the top of rectifying column, the vacuum extraction pipeline is connected to vacuum buffer tank, first condenser is arranged on vacuum extraction pipeline, the first condenser is connected by pipeline process water storage tank, capture tank is connected by pipeline at the bottom of rectifying column, first valve is arranged on the pipeline between rectifying column and capture tank, ethylene glycol tank is connected by pipeline at the intermediate portion of rectifying column, second solenoid valve is arranged on the pipeline between ethylene glycol tank and rectifying column.

[0005] Second delivery pump is connected by pipeline at the bottom of process water storage tank, the output end of second delivery pump is respectively connected by pipeline the upper end of rectifying column and waste water storage tank, third solenoid valve is arranged on the pipeline between second delivery pump and rectifying column, fourth solenoid valve is arranged on the pipeline between second delivery pump and waste water storage tank.

[0006] The bottom of waste water storage tank is connected to accident pool by pipeline, fifth solenoid valve and third delivery pump are sequentially arranged on the pipeline between waste water storage tank and accident pool.

[0007] The number of ethylene glycol tank is two, two ethylene glycol tanks are connected in parallel by pipeline to rectifying column, and ethylene glycol delivery pipe is arranged at the bottom of ethylene glycol tank.

[0008] Second condenser is arranged on steam output pipe.

[0009] The utility model discloses a kind of raw material extraction devices in ethylene glycol antimony by-product, heating, vacuumizing in rectifying tower, moisture in ethylene glycol antimony by-product is separated, then ethylene glycol is separated with solid principle, realizes raw material extraction, avoid energy waste, protect environment, simultaneously by steam heating and negative pressure extraction, reduce energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is the frame schematic diagram of the utility model. DETAILED DESCRIPTION

[0011] To further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model will be described in detail as follows in combination with the drawings and preferred embodiments.

[0012] Example 1:

[0013] As Figure 1 shown, the utility model discloses a kind of raw material extraction devices in ethylene glycol antimony by-product, including by-product storage tank 1, still including rectifying tower 2, is provided with reboiler 3 in the bottom of rectifying tower 2, steam input pipe 6 and steam output pipe 7 are set on reboiler 3, the bottom of by-product storage tank 1 is connected to the upper end of rectifying tower 2 by pipeline, first solenoid valve 5 and first conveying pump 4 are set on the pipeline between by-product storage tank 1 and rectifying tower 2, vacuumizing pipeline 9 is set in the top of rectifying tower 2, vacuumizing pipeline 9 is connected to vacuum buffer tank 10, first condenser 11 is set on vacuumizing pipeline 9, first condenser 11 is connected to process water storage tank 12 by pipeline, capture tank 23 is connected by pipeline in the bottom of rectifying tower 2, first valve 22 is set on the pipeline between rectifying tower 2 and capture tank 23, ethylene glycol tank 17 is connected by pipeline in the middle part of rectifying tower 2, second solenoid valve 19 is set on the pipeline between ethylene glycol tank 17 and rectifying tower 2.

[0014] Flow meter 24 and regulating valve 25 are set on the pipeline between rectifying tower 2 and first conveying pump 4, the amount of by-product conveyed from by-product storage tank 1 to rectifying tower 2 can be controlled by regulating valve 25 and flow meter 24, so that the whole device can extract raw material in by-product, and the process is stable and reliable.

[0015] In the normal operation process, the by-product is transported to the rectifying tower 2 by the first conveying pump 4, and the steam is input into the reboiler 3 through the steam input pipe 6 to heat the rectifying tower 2 to a specified temperature which can be set according to the actual situation. The steam after heating the rectifying tower 2 is transported out through the steam output pipe 7. The vacuum buffer tank 10 is connected to the vacuum system, which is connected to the rectifying tower 2 through a pipeline, so that the rectifying tower 2 can be subjected to negative pressure extraction. Under the action of negative pressure extraction and heating, the water in the by-product is extracted through the vacuum pipe 9. In the process, the water vapor is condensed in the first condenser 11 to form process water which enters the process water storage tank 12. The first condenser 11 is provided with a cooling medium pipeline, and the first condenser 11 is a commercially available product, and its use process is known to those skilled in the art. After the water is separated from the by-product, the remaining liquid phase is ethylene glycol, and the remaining solid phase is solid raw material. The remaining by-product flows down the rectifying tower 2, and the ethylene glycol is first transported to the ethylene glycol tank 17 through the pipeline, while the solid raw material sinks to the bottom of the rectifying tower 2 and enters the capture tank 23.

[0016] Through the above device, the raw material separation of the ethylene glycol antimony by-product can be effectively realized, and the water, ethylene glycol and solid raw material are separated respectively, so that the raw material in the ethylene glycol antimony by-product can be extracted and reused, the resource waste is reduced, and the environmental pollution is also avoided.

[0017] The rectifying tower 2 and the reboiler 3 are known devices, and their specific structure and working principle are known to those skilled in the art, so they will not be described here.

[0018] The bottom of the process water storage tank 12 is connected to the second conveying pump 13 through a pipeline, and the output end of the second conveying pump 13 is connected to the upper end of the rectifying tower 2 and the waste water storage tank 16 through a pipeline respectively. The pipeline between the second conveying pump 13 and the rectifying tower 2 is provided with a third electromagnetic valve 14, and the pipeline between the second conveying pump 13 and the waste water storage tank 16 is provided with a fourth electromagnetic valve 15.

[0019] A device for detecting ethylene glycol can be arranged in the process water storage tank 12, and the ethylene glycol detection device is a commercially available product. It can detect whether the water entering the process water storage tank 12 contains ethylene glycol and the content of ethylene glycol. When the content of ethylene glycol is detected to be lower than the set value, the fourth electromagnetic valve 15 can be opened and the third electromagnetic valve 14 can be closed, and the liquid in the process water storage tank 12 can be transported to the waste water storage tank 16 through the second conveying pump 13. If the content of ethylene glycol is detected to be higher than the set value, the fourth electromagnetic valve 15 can be closed and the third electromagnetic valve 14 can be opened, and the liquid in the process water storage tank 12 can be transported to the rectifying tower 2 through the second conveying pump 13 for repeated rectification to separate the ethylene glycol and water, so that the ethylene glycol can be more completely extracted.

[0020] The bottom of the waste water storage tank 16 is connected to the emergency pool 21 through a pipe, and a fifth electromagnetic valve and a third delivery pump 20 are arranged in sequence on the pipe between the waste water storage tank 16 and the emergency pool 21. When the amount of waste water in the waste water storage tank 16 reaches a certain value, the fifth electromagnetic valve can be opened, and the waste water is delivered to the emergency pool 21 for treatment through the third delivery pump 20.

[0021] The two ethylene glycol tanks 17 are connected in parallel to the rectifying tower 2 through pipes, and an ethylene glycol delivery pipe 18 is arranged at the bottom of each ethylene glycol tank 17. An adjusting valve 25 and a flow meter 24 are arranged on the pipe between the rectifying tower 2 and the ethylene glycol tank 17, for controlling the amount of ethylene glycol entering the corresponding ethylene glycol tank 17. When the amount of ethylene glycol in one of the ethylene glycol tanks 17 reaches a set value, ethylene glycol can be delivered to the other ethylene glycol tank 17. The ethylene glycol tank 17 whose amount reaches the set value delivers ethylene glycol to the workshop through the ethylene glycol delivery pipe 18 at the bottom. The above-mentioned cycle is repeated to ensure that the rectifying tower 2 delivers ethylene glycol to the ethylene glycol tanks 17 and the ethylene glycol in the ethylene glycol tanks 17 is delivered to the workshop without interference, and the stability is high.

[0022] A second condenser 8 is arranged on the steam output pipe 7.

[0023] The second condenser 8 arranged on the steam output pipe 7 can utilize the waste heat of the steam and recycle the water in the steam.

[0024] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0025] In the description of the application, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; can be mechanical connection; can be directly connected, or indirectly connected through intermediate medium, can be the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0026] In the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0027] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the present application, and any simplification, modification, equivalent change and modification of the above embodiment according to the technical essence of the present application still belongs to the scope of the technical solution of the present application.

Claims

1. A raw material extraction device in an ethylene glycol antimony by-product, comprising a by-product storage tank, characterized in that: Also included is a rectification tower, a reboiler is arranged at the bottom of the rectification tower, a steam input pipe and a steam output pipe are arranged on the reboiler, the bottom of the by-product storage tank is connected to the upper end of the rectification tower through a pipeline, a first electromagnetic valve and a first delivery pump are arranged on the pipeline between the by-product storage tank and the rectification tower, a vacuum extraction pipeline is arranged at the top of the rectification tower, the vacuum extraction pipeline is connected to a vacuum buffer tank, a first condenser is arranged on the vacuum extraction pipeline, the first condenser is connected to a process water storage tank through a pipeline, a capture tank is connected to the bottom of the rectification tower through a pipeline, a first valve is arranged on the pipeline between the rectification tower and the capture tank, a glycol tank is connected to the middle part of the rectification tower through a pipeline, and a second electromagnetic valve is arranged on the pipeline between the glycol tank and the rectification tower.

2. The raw material extraction device in ethylene glycol antimony byproducts according to claim 1, characterized in that: A second delivery pump is connected to the bottom of the process water storage tank through a pipeline, the output end of the second delivery pump is respectively connected to the upper end of the rectification tower and a wastewater storage tank through pipelines, a third electromagnetic valve is arranged on the pipeline between the second delivery pump and the rectification tower, and a fourth electromagnetic valve is arranged on the pipeline between the second delivery pump and the wastewater storage tank.

3. The device for extracting raw materials from ethylene glycol antimony by-products according to claim 2, characterized in that: The bottom of the wastewater storage tank is connected to an emergency pool through a pipeline, and a fifth electromagnetic valve and a third delivery pump are arranged on the pipeline between the wastewater storage tank and the emergency pool in sequence.

4. The device for extracting raw materials from ethylene glycol antimony by-products according to claim 1, characterized in that: The number of the glycol tanks is two, and the two glycol tanks are connected to the rectification tower in parallel through pipelines, and a glycol delivery pipe is arranged at the bottom of each glycol tank.

5. The device for extracting raw materials from ethylene glycol antimony by-products according to claim 1, characterized in that: A second condenser is arranged on the steam output pipe.

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