Continuous crystallization type crude anthracene purification device

Abstract

The utility model discloses a continuous crystallization type crude anthracene purification device which comprises an industrial naphthalene distillation device which comprises carbolic oil, an oil-water separator, a primary distillation tower reflux tank, a primary distillation tower reflux pump, a water condensation cooler, a primary distillation tower heating furnace, a primary distillation tower bottom circulating pump and a primary distillation tower; the primary distillation tower bottom circulating pump is connected to one side of the outer surface of the primary distillation tower, the primary distillation tower heating furnace is connected to the bottom of the primary distillation tower, the oil-water separator is connected to one end of the water condensation cooler, and the primary distillation tower reflux pump is connected to a branch at the discharging end of the primary distillation tower. The utility model solves the problems that the existing dephenolization and industrial naphthalene distillation unit in crude anthracene purification is not provided with a primary tower for pre-separation, all separation work is concentrated on a rectifying tower, the separation effect of the rectifying tower is possibly poor, the purity and the yield of a final product are influenced, the pre-separation effect of the primary tower is lacked, and the cost is high. A rectifying tower needs to treat more components, which may lead to problems of higher energy consumption and operation cost.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous crystallization type crude anthracene purification device, in particular to a continuous crystallization type crude anthracene purification device. Background Art

[0002] The production process equipment of the continuous crystallization crude anthracene purification device includes a finished oil depot unit, a raw oil depot unit, a tar distillation unit, a dephenolization and industrial naphthalene distillation unit, and a modified asphalt unit; the auxiliary facilities include a production complex building, an administrative office building and a R&D building, a central control room, an integrated electrical room, a circulating water system, a foam station, a condensate recovery station and a heat exchange station, an initial rainwater pool and an accident water pool, a rainwater lifting pump station, a truck scale, a hazardous waste temporary storage warehouse, etc.

[0003] However, it still has the following disadvantages in actual use:

[0004] The existing dephenolization and industrial naphthalene distillation units in crude anthracene purification do not have a primary distillation tower for pre-separation. All separation work is concentrated on the distillation tower, which may result in poor separation effect of the distillation tower and affect the purity and yield of the final product. Due to the lack of the pre-separation function of the primary distillation tower, the distillation tower needs to process more components, which may lead to higher energy consumption and operating costs.

[0005] Therefore, a new continuous crystallization type crude anthracene purification device is proposed to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a continuous crystallization type crude anthracene purification device to solve the problem proposed in the above background technology that the existing dephenolization and industrial naphthalene distillation units in the crude anthracene purification do not have a primary distillation tower for pre-separation, and all separation work is concentrated on the distillation tower, which may lead to poor separation effect of the distillation tower, affecting the purity and yield of the final product. Due to the lack of the pre-separation effect of the primary distillation tower, the distillation tower needs to process more components, which may lead to higher energy consumption and operating costs.

[0007] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0008] The utility model is a continuous crystallization type crude anthracene purification device, comprising:

[0009] Industrial naphthalene distillation, the industrial naphthalene distillation comprising phenol oil, an oil-water separator, a primary distillation tower reflux tank, a primary distillation tower reflux pump, a hydrocondensate cooler, a primary distillation tower heating furnace, a primary distillation tower bottom circulation pump, and a primary distillation tower;

[0010] The primary distillation tower bottom circulation pump is connected to one side of the outer surface of the primary distillation tower, the primary distillation tower heating furnace is connected to the bottom of the primary distillation tower, the condensate cooler is connected to the discharge end of the primary distillation tower, the oil-water separator is connected to one end of the condensate cooler, the primary distillation tower reflux pump is connected to a branch of the discharge end of the primary distillation tower, the primary distillation tower reflux tank is connected to one side of the primary distillation tower reflux pump, and phenol oil is connected to one side of the primary distillation tower reflux tank.

[0011] Furthermore, the industrial naphthalene distillation also includes a distillation tower heating furnace, a distillation tower bottom circulating pump, a distillation tower, a raw material heat exchanger, an industrial steam cooler, a distillation tower reflux tank, and liquid industrial naphthalene;

[0012] The distillation tower heating furnace is connected to one side of the distillation tower, the distillation tower bottom circulation pump is connected to one side of the outer surface of the distillation tower, the raw material heat exchanger is connected to the discharge end of the distillation tower, the industrial vaporization cooler is connected to one end of the outer surface of the raw material heat exchanger, the distillation tower reflux tank is connected to the industrial vaporization cooler, and the liquid industrial naphthalene is connected to the distillation tower reflux tank.

[0013] Furthermore, the industrial naphthalene distillation also includes a rectifying tower reflux pump, a wash oil cooler, methyl naphthalene oil, and washed naphthalene oil;

[0014] The rectifying tower reflux pump is connected to the branch of the discharge end of the rectifying tower, the wash oil cooler is connected to one end of the rectifying tower bottom circulation pump, the methyl naphthalene oil is connected to one end of the wash oil cooler, and the washed naphthalene oil is connected to one end of the primary distillation tower.

[0015] Further, naphthalene oil from the tar distillation unit is pumped to a scrubbing tower to react with sodium hydroxide to produce a phenate product.

[0016] Furthermore, it also includes a hydrocondensate cooler body;

[0017] The hydrocondenser cooler includes a water inlet, a water outlet, an oil inlet, an oil outlet, a cold flow pipe, a connecting pipe, a motor, 381, a screw rod, and a movable plate;

[0018] The water inlet is connected to one end of the outer surface of the hydrocondenser body, the water outlet is connected to the other end of the hydrocondenser body, the oil inlet is connected to the upper end of one side of the outer surface of the hydrocondenser body, the oil outlet is connected to the lower end of one side of the outer surface of the hydrocondenser body, the cold flow pipe runs through the inside of the hydrocondenser body, the motor is fixedly installed on one side of the inside of the hydrocondenser body, the screw is connected to the output end of the motor, and the movable plate runs through the outer surface of the cold flow pipe.

[0019] Furthermore, the movable plate penetrates the outer surface of the connecting tube and the screw rod, and the movable plate moves horizontally on the outer surface of the screw rod.

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] 1. The utility model comprises the following steps: phenol oil, oil-water separator, primary distillation tower reflux tank, primary distillation tower reflux pump, hydrocondenser, primary distillation tower heating furnace, primary distillation tower bottom circulation pump, primary distillation tower, rectifying tower heating furnace, rectifying tower bottom circulation pump, rectifying tower, raw material heat exchanger, industrial steaming cooler, rectifying tower reflux tank, liquid industrial naphthalene, rectifying tower reflux pump, wash oil cooler, methyl naphthalene oil, washed naphthalene oil, naphthalene oil from tar distillation unit is pumped to 1#, 2#, 3# washing towers, and reacted with sodium hydroxide to generate phenolate products. Naphthalene oil after dephenolization is pumped to industrial naphthalene primary distillation tower, and phenol oil products are separated at the top of the tower after being heated by a tubular heating furnace. Naphthalene wash oil mixed fraction at the bottom of the tower is pumped to the rectifying tower, and heated by a tubular heating furnace. Industrial naphthalene products are extracted at the top of the tower, and wash oil products are extracted at the bottom of the tower.

[0022] 2. Based on beneficial effect 1, by setting the water inlet, water outlet, oil inlet, oil outlet, cold flow pipe, connecting pipe, motor, 381, screw; movable plate, when the hydrocondensate cooler cools the raw materials inside the primary distillation tower, phenol oil will enter the inside of the hydrocondensate cooler body from the oil inlet and flow out through the oil outlet. The water inlet continuously supplies cold water and flows out from the water outlet. To prevent the phenol oil from adhering to the outer surface of the connecting pipe, the staff starts the motor through the external control module, and the motor drives the screw to rotate, and synchronously drives the movable plate to move horizontally on the screw, cleans the outer surface of the connecting pipe, and keeps the heat transfer surface between the cooling medium and the cooled oil clean, which can ensure effective heat transfer, thereby improving the overall heat transfer efficiency.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a flow chart of the purification device of the utility model;

[0026] Figure 2 This is the structural diagram of the hydrocondensate cooler of the utility model;

[0027] Figure 3 This is the internal structure diagram of the hydrocondensate cooler of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 11. Phenol oil; 12. Oil-water separator; 13. Reflux tank of primary distillation tower; 14. Reflux pump of primary distillation tower; 15. Condensate cooler; 16. Heating furnace of primary distillation tower; 17. Circulating pump at the bottom of primary distillation tower; 18. Primary distillation tower; 19. Heating furnace of distillation tower;

[0030] 20. Circulation pump at the bottom of the distillation tower; 21. Distillation tower; 22. Raw material heat exchanger; 23. Industrial steam cooler; 24. Reflux pump of the distillation tower; 25. Reflux tank of the distillation tower; 26. Wash oil cooler; 27. Methyl naphthalene oil; 28. Liquid industrial naphthalene; 29. ​​Washed naphthalene oil;

[0031] 31. Hydrocondenser body; 32. Water inlet; 33. Water outlet; 34. Oil inlet; 35. Oil outlet; 36. Cold flow pipe; 37. Connecting pipe; 38. Motor; 381. Screw rod; 39. Movable plate. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0035] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] See also Figure 1 As shown, this embodiment is a continuous crystallization type crude anthracene purification device, comprising:

[0037] Industrial naphthalene distillation, the industrial naphthalene distillation comprises phenol oil 11, an oil-water separator 12, a primary distillation tower reflux tank 13, a primary distillation tower reflux pump 14, a hydrocondensate cooler 15, a primary distillation tower heating furnace 16, a primary distillation tower bottom circulation pump 17, and a primary distillation tower 18;

[0038] A primary distillation tower bottom circulation pump 17 is connected to one side of the outer surface of the primary distillation tower 18, a primary distillation tower heating furnace 16 is connected to the bottom of the primary distillation tower 18, a hydrocondensate cooler 15 is connected to the discharge end of the primary distillation tower 18, an oil-water separator 12 is connected to one end of the hydrocondensate cooler 15, a primary distillation tower reflux pump 14 is connected to a branch of the discharge end of the primary distillation tower 18, a primary distillation tower reflux tank 13 is connected to one side of the primary distillation tower reflux pump 14, and phenol oil 11 is connected to one side of the primary distillation tower reflux tank 13;

[0039] Industrial naphthalene distillation also includes a distillation tower heating furnace 19, a distillation tower bottom circulating pump 20, a distillation tower 21, a raw material heat exchanger 22, an industrial steam cooler 23, a distillation tower reflux tank 25, and liquid industrial naphthalene 28;

[0040] The distillation tower heating furnace 19 is connected to one side of the distillation tower 21, the distillation tower bottom circulating pump 20 is connected to one side of the outer surface of the distillation tower 21, the raw material heat exchanger 22 is connected to the discharge end of the distillation tower 21, the industrial vaporization cooler 23 is connected to one end of the outer surface of the raw material heat exchanger 22, the distillation tower reflux tank 25 is connected to the industrial vaporization cooler 23, and the liquid industrial naphthalene 28 is connected to the distillation tower reflux tank 25;

[0041] Industrial naphthalene distillation also includes a rectifying tower reflux pump 24, a wash oil cooler 26, methyl naphthalene oil 27, and washed naphthalene oil 29;

[0042] A rectifying tower reflux pump 24 is connected to a branch of a discharge end of a rectifying tower 21, a wash oil cooler 26 is connected to one end of a rectifying tower bottom circulating pump 20, methyl naphthalene oil 27 is connected to one end of the wash oil cooler 26, and washed naphthalene oil 29 is connected to one end of a primary distillation tower 18;

[0043] Working principle:

[0044] The coal tar from the crude oil depot is pumped to the tar intermediate tank of the tar distillation unit after static dehydration, and then pumped to the pre-dehydration tower to remove part of the water and light oil. The coal tar flows from the pre-dehydration tower to the dehydration tower to remove water and light oil. The dehydrated coal tar is pumped to the tubular heating furnace, and after heating, it enters the bottom of the main tower for one-time flash evaporation to separate medium-temperature asphalt, anthracene oil, anthracene oil, washing oil, naphthalene oil, and phenol oil products. The medium-temperature asphalt at the bottom of the tower is pumped to the modified asphalt unit for further processing. The naphthalene oil produced from the side line is pumped to the dephenolization industrial naphthalene unit for further processing;

[0045] The naphthalene oil from the tar distillation unit is pumped to the 1#, 2#, and 3# washing towers to react with sodium hydroxide to generate phenol salt products. The dephenolized naphthalene oil is pumped to the industrial naphthalene primary distillation tower, heated by a tubular heating furnace, and the phenol oil product is separated at the top of the tower. The mixed fraction of naphthalene wash oil at the bottom of the tower is pumped to the distillation tower, heated by a tubular heating furnace, and the industrial naphthalene product is produced at the top of the tower, and the wash oil product is produced at the bottom of the tower;

[0046] The medium-temperature asphalt from tar distillation is pumped to the 1# and 2# reactors and the reforming tower in sequence, and is heated in a tubular heating furnace to undergo an asphalt reforming reaction to generate a modified asphalt product. The intermediate product flash oil is mixed with anthracene oil and anthracene oil to produce a carbon black oil product;

[0047] This step.

[0048] See also Figure 2-Figure 3 As shown, this embodiment is based on the above embodiment 1 and also includes:

[0049] Hydrocondenser body 31;

[0050] The hydrocondenser 31 includes a water inlet 32, a water outlet 33, an oil inlet 34, an oil outlet 35, a cold flow pipe 36, a connecting pipe 37, motors 38, 381, a screw rod, and a movable plate 39;

[0051] The water inlet 32 ​​is connected to one end of the outer surface of the hydrocondenser body 31, the water outlet 33 is connected to the other end of the hydrocondenser body 31, the oil inlet 34 is connected to the upper end of one side of the outer surface of the hydrocondenser body 31, the oil outlet 35 is connected to the lower end of one side of the outer surface of the hydrocondenser body 31, the cold flow pipe 36 runs through the inside of the hydrocondenser body 31, the motor 38 is fixedly installed on one side of the inside of the hydrocondenser body 31, the screw rod 381 is connected to the output end of the motor 38, and the movable plate 39 runs through the outer surface of the cold flow pipe 36;

[0052] The movable plate 39 penetrates the outer surface of the connecting tube 37 and the screw rod 381, and the movable plate 39 moves horizontally on the outer surface of the screw rod 381;

[0053] Working principle:

[0054] When the hydrocondenser 15 cools the raw materials inside the primary distillation tower 18;

[0055] The phenol oil 11 will enter the hydrocondenser body 31 from the oil inlet 34 and flow out through the oil outlet 35. The water inlet 32 ​​continuously delivers cold water and flows out from the water outlet 33. To prevent the phenol oil 11 from adhering to the outer surface of the connecting pipe 37;

[0056] The staff starts the motor 38 through the external control module, and the motor 38 drives the screw rod 381 to rotate, and synchronously drives the movable plate 39 to move horizontally on the screw rod 381 to clean the outer surface of the connecting pipe 37;

[0057] This step keeps the heat transfer surface between the cooling medium such as water and the cooled oil such as phenol oil clean, which can ensure effective heat transfer and thus improve the overall heat transfer efficiency.

[0058] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A continuous crystallization type crude anthracene purification device, characterized in that: include: Industrial naphthalene distillation, the industrial naphthalene distillation comprising phenol oil (11), an oil-water separator (12), a primary distillation tower reflux tank (13), a primary distillation tower reflux pump (14), a hydrocondenser cooler (15), a primary distillation tower heating furnace (16), a primary distillation tower bottom circulation pump (17), and a primary distillation tower (18); The primary distillation tower bottom circulation pump (17) is connected to one side of the outer surface of the primary distillation tower (18), the primary distillation tower heating furnace (16) is connected to the bottom of the primary distillation tower (18), the hydrocondensate cooler (15) is connected to the discharge end of the primary distillation tower (18), the oil-water separator (12) is connected to one end of the hydrocondensate cooler (15), the primary distillation tower reflux pump (14) is connected to a branch of the discharge end of the primary distillation tower (18), the primary distillation tower reflux tank (13) is connected to one side of the primary distillation tower reflux pump (14), and the phenol oil (11) is connected to one side of the primary distillation tower reflux tank (13).

2. A continuous crystallization type crude anthracene purification device according to claim 1, characterized in that: The industrial naphthalene distillation also includes a rectifying tower heating furnace (19), a rectifying tower bottom circulating pump (20), a rectifying tower (21), a raw material heat exchanger (22), an industrial steaming cooler (23), a rectifying tower reflux tank (25), and liquid industrial naphthalene (28); The distillation tower heating furnace (19) is connected to one side of the distillation tower (21), the distillation tower bottom circulation pump (20) is connected to one side of the outer surface of the distillation tower (21), the raw material heat exchanger (22) is connected to the discharge end of the distillation tower (21), the industrial steaming cooler (23) is connected to one end of the outer surface of the raw material heat exchanger (22), the distillation tower reflux tank (25) is connected to the industrial steaming cooler (23), and the liquid industrial naphthalene (28) is connected to the distillation tower reflux tank (25).

3. A continuous crystallization type crude anthracene purification device according to claim 1, characterized in that: The industrial naphthalene distillation further comprises a rectifying tower reflux pump (24), a wash oil cooler (26), methyl naphthalene oil (27), and washed naphthalene oil (29); The distillation tower reflux pump (24) is connected to a branch at the discharge end of the distillation tower (21), the wash oil cooler (26) is connected to one end of the distillation tower bottom circulation pump (20), the methyl naphthalene oil (27) is connected to one end of the wash oil cooler (26), and the washed naphthalene oil (29) is connected to one end of the primary distillation tower (18).

4. A continuous crystallization type crude anthracene purification device according to claim 1, characterized in that: Naphthalene oil from the tar distillation unit is pumped to a scrubber where it reacts with sodium hydroxide to produce a phenate product.

5. The continuous crystallization type crude anthracene purification device according to claim 1, characterized in that: It also includes a hydrocondenser body (31); The hydrocondenser cooler body (31) comprises a water inlet (32), a water outlet (33), an oil inlet (34), an oil outlet (35), a cold flow pipe (36), a connecting pipe (37), a motor (38), 381, a screw rod; and a movable plate (39); The water inlet (32) is connected to one end of the outer surface of the hydrocondenser body (31), the water outlet (33) is connected to the other end of the hydrocondenser body (31), the oil inlet (34) is connected to the upper end of one side of the outer surface of the hydrocondenser body (31), the oil outlet (35) is connected to the lower end of one side of the outer surface of the hydrocondenser body (31), the cold flow pipe (36) passes through the inside of the hydrocondenser body (31), the motor (38) is fixedly installed on one side of the inside of the hydrocondenser body (31), the screw rod (381) is connected to the output end of the motor (38), and the movable plate (39) passes through the outer surface of the cold flow pipe (36).

6. A continuous crystallization type crude anthracene purification device according to claim 5, characterized in that: The movable plate (39) penetrates the outer surface of the connecting tube (37) and the screw rod (381), and the movable plate (39) moves horizontally on the outer surface of the screw rod (381).

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