Liquid separation device for ethylene glycol production

Abstract

The utility model discloses a liquid separation device for ethylene glycol production, which relates to the technical field of wastewater separation and comprises a body, a heating shell is fixedly arranged on the peripheral surface of the body, a processing chamber is formed between the heating shell and the body, a heating coil is fixedly arranged in the processing chamber, and a filter component is fixedly arranged on the inner wall of the body. The filtering assembly is formed by combining a plurality of baffles fixedly connected with the inner wall of the body in the vertical direction, the baffles are arranged in a downward-inclining mode, the downward-inclining directions of every two adjacent baffles in the vertical direction are opposite, and a collecting opening is formed in the bottom end of the body. The processing device is provided with the body and the processing cavity, raw materials are loaded into the heating shell in the processing device through the feeding port of the processing device, and the heating collar is started to heat the raw materials in the heating shell through the heating coil. The raw materials are screened layer by layer through the baffles to ensure that ethylene glycol in the raw materials is evaporated.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater separation, in particular to a liquid separation device for ethylene glycol production. Background Art

[0002] When ethylene glycol is produced, corresponding wastewater will be generated. Discharging these wastewaters into the environment will cause irreversible harm to the environment. In order to meet the wastewater discharge standards, the factory needs to separate the easily evaporable substances in the ethylene glycol wastewater from the ethylene glycol, and pass the ethylene glycol into the stripping tower to separate the substances inside the ethylene glycol wastewater from the ethylene glycol before proceeding to the next step.

[0003] The published announcement number CN216549706U discloses a glycol wastewater separation and recovery device, comprising a stripping tower shell, a tower plate is installed inside the stripping tower shell, a steam frame is arranged below the tower plate, an inner groove is opened on the inner wall of the steam frame, an insulating inner plate is arranged on the inner wall of the inner groove, a first steam inlet is installed on the lower side of the stripping tower shell, the first steam inlet extends to the inside of the inner groove, and a mounting block is arranged below the steam frame. The utility model is provided with a steam frame and an inner groove, and steam is passed into the inner groove inside the steam frame through the first steam inlet. After the steam in the inner groove reaches a certain volume, the steam enters the interior of the steam frame through the steam hole, so that the steam passed can be effectively gathered, thereby reducing the speed at which the steam temperature drops, and ensuring that the evaporable substances in the glycol wastewater are effectively removed.

[0004] In the above disclosed device, ethylene glycol wastewater flows downward through the tower plate inside the stripping tower shell. At the same time, steam is introduced into the bottom of the stripping tower shell through the steam inlet, the steam enters the inner tank and stays there, and part of the steam enters the bottom of the tower plate through the steam holes and then floats upward. The steam contacts the evaporable substances in the ethylene glycol wastewater and removes the evaporable substances in the ethylene glycol. However, when the device is in use, the ethylene glycol may be cooled and collected together with the evaporating substances, resulting in a waste of raw materials and a certain economic loss. Utility Model Content

[0005] The utility model aims to solve the problem in the prior art that ethylene glycol may be cooled and collected together with evaporating substances, resulting in a waste of raw materials, and proposes a liquid separation device for ethylene glycol production.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A liquid separation device for producing ethylene glycol comprises a body, a heating shell is fixedly arranged on the outer peripheral surface of the body, a processing chamber is formed between the heating shell and the body, a heating coil is fixedly arranged in the processing chamber, a filter assembly is fixedly arranged on the inner wall of the body, the filter assembly is composed of a plurality of baffles fixedly connected to the inner wall of the body in the vertical direction, and the plurality of baffles are arranged to be tilted downward, and the two adjacent baffles in the vertical direction are tilted downward in opposite directions, a collecting port is opened on the bottom end of the body, a collecting mechanism for collecting and processing steam is fixedly arranged on the top of the body, and the heating shell and the body are connected by a liquid infusion pipeline.

[0008] Preferably, a plurality of ribs are fixedly arranged in the horizontal direction on the upper end surface of the baffle, the plurality of ribs are arranged parallel to each other, and the cross-section of the ribs in the vertical direction is triangular, and the angle between the hypotenuse of the rib and the baffle is not less than ninety degrees.

[0009] Preferably, a round cover is fixedly arranged on the top of the main body, a heating tube is rotatably arranged on the top of the round cover, and a spiral blade is fixedly arranged on the bottom end of the heating tube.

[0010] Preferably, the collecting mechanism comprises a condenser tube fixedly arranged on the top of the main body, and a collecting cylinder for collecting the waste solution after cooling is fixedly arranged on the other end of the condenser tube.

[0011] Preferably, the condenser is arranged to be inclined from top to bottom.

[0012] Preferably, a water pump is fixedly arranged at the bottom of the heating shell, the water inlet of the water pump is fixedly connected to the water outlet of the heating shell, and the water outlet of the water pump is fixedly connected to the infusion pipeline.

[0013] Preferably, the collecting port is arranged in a hole shape with a large top and a small bottom.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model is provided with a main body and a processing chamber. The raw material is passed through the feed port of the device to adjust the heating shell in the device, and the heating collar heating coil is started to heat the raw material inside the heating shell. The raw material is screened through the baffle layer by layer to ensure that the ethylene glycol in the raw material is evaporated;

[0016] 2. The spiral blades arranged on the round cover can maintain the rated temperature when the steam floats to the top of the main body, and can liquefy the ethylene glycol gas in the steam, making it convenient for the device to collect it. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1This is a schematic diagram of the overall structure of a liquid separation device for ethylene glycol production proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure heating coil of a liquid separation device for ethylene glycol production proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of a liquid separation device for ethylene glycol production proposed by the utility model;

[0020] Figure 4 A liquid separation device for ethylene glycol production proposed by the utility model Figure 3 Schematic diagram at point A in the middle.

[0021] In the figure: 1. main body; 2. heating shell; 3. processing chamber; 4. heating coil; 5. baffle; 6. collecting port; 7. infusion pipeline; 8. ribs; 9. round cover; 10. heating tube; 11. spiral blade; 12. condenser; 13. water pump; 14. collecting tube. DETAILED DESCRIPTION

[0022] 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.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention.

[0024] Reference Figure 1-3 A liquid separation device for ethylene glycol production includes a main body 1, a heating shell 2 is fixedly arranged on the outer peripheral surface of the main body 1, a processing chamber 3 is formed between the heating shell 2 and the main body 1, and when the device is used, the solution to be processed is stored in the heating shell 2 and is continuously preheated.

[0025] A heating coil 4 is fixedly installed in the processing chamber 3, and a filter assembly is fixedly installed on the inner wall of the main body 1. The filter assembly is composed of a plurality of baffles 5 fixedly connected to the inner wall of the main body 1 in the vertical direction, and the plurality of baffles 5 are arranged to be tilted downward, and the downward tilt directions of two adjacent baffles 5 in the vertical direction are opposite.

[0026] Reference Figure 1-3A plurality of ribs 8 are fixedly arranged in the horizontal direction of the upper end surface of the baffle 5, and the plurality of ribs 8 are arranged parallel to each other, and the cross-section of the ribs 8 in the vertical direction is arranged in a triangular shape, and the angle between the hypotenuse of the ribs 8 and the baffle 5 is not less than ninety degrees. By setting the ribs 8 on the upper end surface of the baffle 5, when the solution drops on the baffle 5 of the device, it can flow from top to bottom along the baffle 5, and can be bumped when flowing through the ribs 8, so that the solution is heated more evenly.

[0027] Reference Figure 2-4 A round cover 9 is fixedly provided on the top of the main body 1, a heating tube 10 is rotatably provided on the top of the round cover 9, a spiral blade 11 is fixedly provided on the bottom end of the heating tube 10, and the round cover 9 arranged on the top of the main body 1 enables the steam generated by the device during operation to be concentrated toward the center along the arc-shaped round cover 9, and the airflow generated by the steam in the process of rising can drive the spiral blade 11 fixedly provided on the heating tube 10 to rotate, and the temperature of the heating tube 10 is set below the boiling point of ethylene glycol, so that the ethylene glycol gas in the steam can be liquefied, and then separated by the centrifugal force generated by the rotation of the spiral blade 11, and fall on the baffle 5 of the device for collection.

[0028] A collecting port 6 is provided on the bottom end of the main body 1 , a collecting mechanism for collecting and processing steam is fixedly provided on the top of the main body 1 , and the heating shell 2 and the main body 1 are connected by a liquid delivery pipe 7 .

[0029] Reference Figure 1-2 The collecting mechanism includes a condenser 12 fixedly arranged on the top of the main body 1, and a collecting tube 14 for collecting the cooled waste solution is fixedly arranged on the other end of the condenser 12. By setting the condenser 12 on the top of the main body 1, when the device is in operation, the steam generated during the evaporation process can be cooled and liquefied through the condenser 12, and then collected by the collecting tube 14, which is simple and convenient.

[0030] Reference Figure 1-3 The condenser 12 is inclined from top to bottom. By arranging the condenser 12 to be inclined, it is avoided that the steam will not flow back when it is liquefied in the condenser 12, thereby affecting the overall operating efficiency of the device.

[0031] Reference Figure 1-2 A water pump 13 is fixedly arranged on the bottom of the heating shell 2, the water inlet of the water pump 13 is fixedly connected to the water outlet of the heating shell 2, and the water outlet of the water pump 13 is fixedly connected to the infusion pipeline 7. By means of the water pump 13 arranged on the bottom end of the heating shell 2, the raw materials preheated by the heating shell 2 can be transported, thereby improving the overall operating efficiency of the device.

[0032] Reference Figure 1-3The collecting port 6 is in the shape of a hole with a large top and a small bottom. By setting the collecting port 6 in the shape of a hole with a large top and a small bottom, when the solution treated by evaporation of the device flows to the collecting port 6 of the device, the treated solution can slide down along the side wall of the collecting port 6, which is convenient for the staff to collect and process it.

[0033] The specific working principle of the utility model is as follows:

[0034] When the device is in use, the solution to be treated is stored in the heating shell 2, and preheating is achieved through the heating coil 4 arranged in the processing chamber 3. The water pump 13 in the starting device transports the solution to the main body 1 in the device. The solution flows along the baffle 5, and the ribs 8 arranged on the upper end surface of the baffle 5 are used to achieve that when the solution drips on the baffle 5 of the device, it can flow from top to bottom along the baffle 5, and can be bumped when flowing through the ribs 8, so that the solution is heated more evenly. The round cover 9 arranged on the top of the main body 1 enables the steam generated by the device during operation to be concentrated toward the center along the arc-shaped round cover 9, and the airflow generated by the steam during the rising process can drive the spiral blade 11 fixedly arranged on the heating tube 10 to rotate, and the temperature of the heating tube 10 is set below the boiling point of ethylene glycol, so that the ethylene glycol gas in the steam can be liquefied, and then separated by the centrifugal force generated by the rotation of the spiral blade 11, and falls on the baffle 5 of the device for collection.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A liquid separation device for producing ethylene glycol, comprising a body (1), characterized in that: A heating shell (2) is fixedly arranged on the outer peripheral surface of the body (1), a processing chamber (3) is formed between the heating shell (2) and the body (1), a heating coil (4) is fixedly arranged in the processing chamber (3), a filter assembly is fixedly arranged on the inner wall of the body (1), the filter assembly is composed of a plurality of baffles (5) fixedly connected to the inner wall of the body (1) in the vertical direction, and the plurality of baffles (5) are arranged to be tilted downward, and two adjacent baffles (5) in the vertical direction are tilted downward in opposite directions, a collecting port (6) is opened on the bottom end of the body (1), a collecting mechanism for collecting and processing steam is fixedly arranged on the top of the body (1), and the heating shell (2) and the body (1) are connected by a transmission pipeline (7).

2. A liquid separation device for ethylene glycol production according to claim 1, characterized in that: A plurality of ribs (8) are fixedly arranged in the horizontal direction on the upper end surface of the baffle (5); the plurality of ribs (8) are arranged parallel to each other, and the cross-section of the ribs (8) in the vertical direction is arranged in a triangular shape, and the angle between the hypotenuse of the ribs (8) and the baffle (5) is not less than ninety degrees.

3. The liquid separation device for ethylene glycol production according to claim 1, characterized in that: A round cover (9) is fixedly arranged on the top of the body (1), a heating tube (10) is rotatably arranged on the top of the round cover (9), and a spiral blade (11) is fixedly arranged on the bottom end of the heating tube (10).

4. The liquid separation device for ethylene glycol production according to claim 1, characterized in that: The collecting mechanism comprises a condenser tube (12) fixedly arranged on the top of the body (1), and a collecting cylinder (14) for collecting the waste solution after cooling is fixedly arranged on the other end of the condenser tube (12).

5. The liquid separation device for ethylene glycol production according to claim 4, characterized in that: The condenser tube (12) is arranged to be inclined from top to bottom.

6. The liquid separation device for ethylene glycol production according to claim 1, characterized in that: A water pump (13) is fixedly arranged at the bottom of the heating shell (2); a water inlet of the water pump (13) is fixedly connected to a water outlet of the heating shell (2); and a water outlet of the water pump (13) is fixedly connected to a liquid infusion pipeline (7).

7. The liquid separation device for ethylene glycol production according to claim 1, characterized in that: The collecting port (6) is arranged in the shape of a hole with a large top and a small bottom.

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