Coal tar dehydration heating device

Abstract

The utility model relates to the field of coal tar treatment equipment, in particular to a coal tar dehydration heating device. The coal tar dehydration heating device comprises a raw material storage tank, wherein a heating coil is arranged in the raw material storage tank; the heat-conducting oil furnace is filled with heat-conducting oil, and a conveying pipeline and a circulating pipeline are arranged between the heat-conducting oil furnace and the heating coil; the conveying pipeline is configured to convey heat conduction oil into the heating coil; the circulating pipeline is configured to circulate the heat-conducting oil in the heating coil into the heat-conducting oil furnace; and a regulating valve is arranged on the conveying pipeline and is configured to be capable of regulating the flow of the heat-conducting oil. According to the coal tar dehydration heating device, heat conduction oil is adopted to heat coal tar, the temperature rise of the heat conduction oil is fast, the heat conduction oil can be recycled, cost can be saved, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the field of coal tar processing equipment, in particular to a coal tar dehydration heating device. Background Art

[0002] Coal tar is a black or dark brown viscous liquid with a pungent odor generated during coal distillation. It is generally used as a refined raw material to produce various chemical products. It can also be used directly, such as as an ingredient component of industrial coal briquette, coke and binder for coal-based activated carbon. It can also be used as fuel oil, blast furnace injection fuel, wood preservative oil and raw material for carbon black. The water content of raw coal tar circulating in the market is generally around 4%. It needs to be dehydrated before producing various chemical products to reduce the heat consumption of the subsequent distillation process, increase the production capacity of the equipment, and reduce the system resistance of continuous distillation heating; at the same time, dehydration of coal tar is also conducive to reducing the content of fixed ammonium salts in coal tar.

[0003] The existing coal tar dehydration usually adopts the static dehydration heating method, the principle of which is that under heating conditions, tar and water are naturally separated due to different densities, and part of the water is separated from the tar. This method can remove some water and impurities and make the coal tar uniform. The tar is heated and statically dehydrated in the tar storage tank, and the tar temperature is maintained at 70-80°C and is left to stand for more than 36 hours. If the tar is heated to 90-95°C for dehydration, it is beneficial to quickly separate the water in the emulsified part, but when the temperature is too high, it is easy to cause the loss of light oil and the evaporation of naphthalene. Static dehydration can initially remove the water content of the tar to 2%-3%. However, the existing dehydration equipment often uses electric heating for heating, and the operation of the equipment depends entirely on electricity, and the dehydration cost is relatively high.

[0004] Therefore, this field needs a new technical solution to solve the above problems. Summary of the invention

[0005] In order to improve or solve the technical problem of high cost of electric heating dehydration in the prior art, the utility model provides a coal tar dehydration heating device.

[0006] The coal tar dehydration and heating device includes: a raw material storage tank, in which a heating coil is arranged; a thermal oil furnace, in which thermal oil is filled, and a delivery pipeline and a circulation pipeline are arranged between the thermal oil furnace and the heating coil; the delivery pipeline is configured to deliver thermal oil to the heating coil; the circulation pipeline is configured to circulate the thermal oil in the heating coil to the thermal oil furnace; a regulating valve is arranged on the delivery pipeline, and the regulating valve is configured to adjust the flow rate of the thermal oil.

[0007] The utility model coal tar dehydration and heating device includes a raw material storage tank and a thermal oil furnace. The thermal oil furnace is filled with thermal oil for heating the thermal oil. The raw material storage tank is used to store undehydrated coal tar, and a heating coil is arranged in the raw material storage tank. The heating coil is connected to the thermal oil furnace through a delivery pipeline and a regulating valve, which is used to deliver the heated thermal oil to the heating coil; the thermal oil in the heating coil heats the coal tar in the raw material storage tank, thereby separating the coal tar and water layers and reducing the water content of the coal tar. Through the above-mentioned arrangement, the utility model coal tar dehydration and heating device uses thermal oil to heat the coal tar, and the thermal oil heats up quickly and can be recycled, which can save costs and reduce energy consumption.

[0008] In the preferred technical solution of the above-mentioned coal tar dehydration and heating device, a refueling port is arranged on the thermal oil furnace. Through the above-mentioned arrangement, thermal oil can be added into the thermal oil furnace through the refueling port.

[0009] In the preferred technical solution of the above-mentioned coal tar dehydration and heating device, a level gauge for detecting the liquid level of the heat transfer oil is arranged in the heat transfer oil furnace. Through the above-mentioned arrangement, the level gauge can facilitate the staff to observe the liquid level of the heat transfer oil in the heating oil furnace, so as to replenish the heat transfer oil in the heating oil furnace in time.

[0010] In the preferred technical solution of the above-mentioned coal tar dehydration and heating device, a temperature sensor for detecting the temperature of the coal tar is arranged in the raw material storage tank. Through the above-mentioned setting, the arrangement of the temperature sensor can facilitate the staff to obtain the temperature of the coal tar, so as to control the dehydration process and obtain a better dehydration effect.

[0011] In the preferred technical solution of the above-mentioned coal tar dehydration and heating device, the temperature sensor is arranged in linkage with the regulating valve, and the regulating valve is configured to adjust the opening according to the reading of the temperature sensor. Through the above-mentioned setting, the temperature sensor is arranged in linkage with the regulating valve, so that the regulating valve can be automatically adjusted, which is convenient for controlling the temperature of the coal tar.

[0012] In the preferred technical solution of the above-mentioned coal tar dehydration and heating device, a moisture content detector for detecting the moisture content of the coal tar in the raw material storage tank is arranged on the raw material storage tank. Through the above-mentioned arrangement, the arrangement of the moisture content detector is convenient for obtaining the moisture content of the coal tar, thereby judging whether the coal tar meets the conditions for entering the next process.

[0013] In the preferred technical solution of the above-mentioned coal tar dehydration and heating device, a circulation pump is arranged on the above-mentioned conveying pipeline. Through the above-mentioned arrangement, the arrangement of the circulation pump facilitates the circulation of the heat transfer oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0015] Figure 1 It is a schematic diagram of an embodiment of the coal tar dehydration and heating device of the utility model.

[0016] List of reference numerals: 1. Raw material storage tank; 2. Thermal oil furnace; 21. Delivery pipeline; 22. Circulation pipeline; 23. Control valve; 24. Circulation pump; 3. Heating coil. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0018] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" 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 direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In order to improve or solve the technical problem of high cost of electric heating dehydration in the prior art, the utility model provides a coal tar dehydration heating device. The coal tar dehydration heating device comprises: a raw material storage tank 1, in which a heating coil 3 is arranged; a thermal oil furnace 2, in which thermal oil is filled, and a delivery pipeline 21 and a circulation pipeline 22 are arranged between the thermal oil furnace 2 and the heating coil 3; the delivery pipeline 21 is configured to deliver thermal oil to the heating coil 3; the circulation pipeline 22 is configured to circulate the thermal oil in the heating coil 3 to the thermal oil furnace 2; a regulating valve 23 is arranged on the delivery pipeline 21, and the regulating valve 23 is configured to adjust the flow rate of the thermal oil.

[0021] Figure 1 Schematic diagram of an embodiment of the utility model coal tar dehydration heating device. Figure 1 As shown, in one or more embodiments, the coal tar dehydration and heating device of the utility model includes a thermal oil furnace 2 and a raw material storage tank 1.

[0022] Continue to see Figure 1 The utility model coal tar dehydration heating device adopts a heating static dehydration method. The raw material storage tank 1 is used to store coal tar circulating on the market, and its water content is generally greater than 4%. The coal tar is heated in the raw material storage tank 1 and maintained at 70°C-80°C, and is static for more than 36 hours. Water and coal tar are separated due to different densities, thereby dehydrating the water in the coal tar to about 2%-3%. In one or more embodiments, a heating coil 3 is arranged in the raw material storage tank 1. The heating coil 3 is fixed in the raw material storage tank 1 and is roughly serpentine to increase the contact area with the coal tar. Further, the heating coil 3 has an oil inlet and an oil outlet, and the oil inlet and the oil outlet both extend out of the raw material storage tank 1. Further, a wastewater outlet and a coal tar outlet are provided on the raw material storage tank 1. Among them, the wastewater outlet is connected to a water storage tank for the reuse of wastewater. The coal tar outlet is connected to a distillation system so that the next process is performed on the coal tar. Preferably, a water flow purifier is arranged in the water tank or between the wastewater outlet and the water tank, and the purifier is used to purify the wastewater. For example, the wastewater is filtered, acidified and hydrolyzed, anaerobically treated, aerobic treated, settled, adsorbed, etc. Further, a moisture content detector is arranged in the raw material storage tank 1, and the moisture content detector is used to detect the moisture content of the coal tar in the raw material storage tank 1. Exemplarily, the moisture content detector includes an instrument body and a probe connected to the instrument body. The instrument body is fixed on the raw material storage tank 1 or on a rack around the raw material storage tank 1, and the probe is inserted into the raw material storage tank 1. Further, a temperature sensor is arranged in the raw material storage tank 1, and the temperature sensor is used to detect the temperature of the coal tar. Exemplarily, the temperature detector is a platinum resistance temperature sensor.

[0023] Continue to see Figure 1In one or more embodiments, the thermal oil furnace 2 is filled with thermal oil, and the thermal oil furnace 2 is connected to the heating coil 3 through a delivery pipeline 21 and a circulation pipeline 22. Specifically, the delivery pipeline 21 is connected to the oil inlet of the heating coil 3, and the circulation pipeline 22 is connected to the oil outlet of the heating coil 3. The thermal oil is transported from the thermal oil furnace 2 to the heating coil 3 through the delivery pipeline 21, and then flows back to the thermal oil furnace 2 from the heating coil 3 through the circulation pipeline 22. In one or more embodiments, a refueling port is provided on the thermal oil furnace 2. The thermal oil will be lost during use, and the thermal oil can be replenished through the refueling port. Further, a liquid level gauge is arranged in the thermal oil furnace 2, and the liquid level gauge is used to detect the liquid level of the thermal oil in the thermal oil furnace 2. Exemplarily, the liquid level gauge can be a glass plate two-color water level gauge with distinct colors, which is convenient for staff to observe the liquid level and has high accuracy. Preferably, the heat transfer oil can be replenished regularly or according to the consumption, that is, the liquid level of the heat transfer oil. In one or more embodiments, a circulating pump 24 is provided on the delivery pipeline 21, and the circulating pump 24 provides power for the flow of the heat transfer oil. Further, a regulating valve 23 is provided on the delivery pipeline 21, and the regulating valve 23 can adjust the flow rate of the heat transfer oil in the delivery pipeline 21. Further, the temperature sensor and the regulating valve 23 are arranged in linkage, and the regulating valve 23 can adjust the opening according to the indication of the temperature sensor. Specifically, when the indication of the temperature sensor is less than the predetermined temperature range, the regulating valve 23 increases the opening, and the coal tar temperature increases; when the indication of the temperature sensor is greater than the predetermined temperature range, the regulating valve 23 reduces the opening, and the coal tar temperature decreases. Among them, the predetermined temperature range can be 70℃-80℃.

[0024] So far, the technical scheme of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical schemes after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A coal tar dehydration and heating device, characterized in that: include: A raw material storage tank (1), wherein a heating coil (3) is arranged in the raw material storage tank (1); A heat transfer oil furnace (2) is provided, wherein the heat transfer oil furnace (2) is filled with heat transfer oil, and a delivery pipeline (21) and a circulation pipeline (22) are arranged between the heat transfer oil furnace (2) and the heating coil (3); the delivery pipeline (21) is configured to deliver the heat transfer oil to the heating coil (3); the circulation pipeline (22) is configured to circulate the heat transfer oil in the heating coil (3) into the heat transfer oil furnace (2); and a regulating valve (23) is arranged on the delivery pipeline (21), and the regulating valve (23) is configured to adjust the flow rate of the heat transfer oil.

2. The coal tar dehydration and heating device according to claim 1, characterized in that: An oil filling port is arranged on the thermal oil furnace (2).

3. The coal tar dehydration and heating device according to claim 2, characterized in that: A liquid level meter for detecting the liquid level of the heat transfer oil is arranged in the heat transfer oil furnace (2).

4. The coal tar dehydration and heating device according to claim 1, characterized in that: A temperature sensor for detecting the temperature of coal tar is arranged in the raw material storage tank (1).

5. The coal tar dehydration and heating device according to claim 4, characterized in that: The temperature sensor is arranged in linkage with the regulating valve (23), and the regulating valve (23) is configured to adjust the opening according to the reading of the temperature sensor.

6. The coal tar dehydration and heating device according to claim 5, characterized in that: The raw material storage tank (1) is provided with a moisture content detector for detecting the moisture content of the coal tar in the raw material storage tank (1).

7. The coal tar dehydration and heating device according to claim 1, characterized in that: A circulation pump (24) is arranged on the conveying line (21).

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