Petroleum coke raw material pretreatment device

Abstract

The utility model relates to the technical field of petroleum coke processing, and discloses a petroleum coke raw material pretreatment device which comprises a sleeve, a heating piece is arranged in the sleeve, a liquid inlet pipe and a liquid outlet pipe which are matched with the heating piece are arranged on the outer wall of the sleeve, a control panel is fixedly connected to the outer wall of the sleeve, and a plurality of internal pipelines are arranged in the heating piece. A liquid inlet pipe is arranged at the inner end of the heating piece, a liquid outlet pipe is arranged at the output end of the liquid inlet pipe, a connecting piece is arranged at the output end of the inner pipeline, and an oil outlet pipe is arranged at the output end of the connecting piece. The material oil is dispersed into four branches by the internal pipeline to be matched with heat exchange liquid with heat in the heating piece for heat exchange, so that the material oil can be preheated, and the problem that a common double-pipe heat exchanger is poor in heating efficiency on the central part of fluid in the internal pipeline is solved; and the preheating effect on the material oil in the internal pipeline is better.

Description

Technical Field

[0001] This utility model relates to the field of petroleum coke processing technology, specifically to a petroleum coke raw material pretreatment device. Background Technology

[0002] Petroleum coke is a solid carbonaceous material produced by the thermal cracking of heavy oilseeds (such as bitumen) during the petroleum refining process. It is black or dark gray, has a porous structure, and its main component is carbon, with small amounts of hydrogen, sulfur, oxygen, and metallic elements. In the processing of petroleum coke, the heavy oilseed material can undergo heat pretreatment. This pretreatment typically uses devices such as shell-and-tube heat exchangers, multi-tube heat exchangers, or direct heating furnaces to reduce the viscosity of the raw material, facilitating subsequent transportation and processing.

[0003] Existing shell-and-tube heat exchangers in petroleum coke feedstock pretreatment devices typically have a cylindrical shell with connecting pipes for linking the heating medium and the material oil pipeline to be heated. The material oil pipeline usually runs horizontally through both ends of the shell. In this case, the shell-and-tube heat exchanger utilizes the heat exchange fluid in conjunction with the material oil pipeline for heat exchange. However, during heating, when the diameter of the material oil pipeline is large, the periphery of the oil inside is more easily heated than the center, making it difficult for the oil in the center to exchange heat with the heat exchange fluid. This hinders uniform heating of the oil inside the material oil pipeline, making it inconvenient to use a shell-and-tube heat exchanger for pretreatment of petroleum coke feedstock. Therefore, we propose a petroleum coke feedstock pretreatment device. Utility Model Content

[0004] The purpose of this invention is to provide a petroleum coke feedstock pretreatment device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a petroleum coke raw material pretreatment device, including a sleeve, a heating element is provided inside the sleeve, an inlet pipe and an outlet pipe that cooperate with the heating element are provided on the outer wall of the sleeve, a control panel is fixedly connected to the outer wall of the sleeve, a plurality of internal pipes are provided inside the heating element, a connector is provided at the output end of the internal pipes, and an oil outlet pipe is provided at the output end of the connector.

[0006] Preferably, the sleeve is provided with outer sleeves at both ends, and the sidewalls of the outer sleeves are provided with oil inlet pipes.

[0007] Preferably, a heating pipe is provided on the side wall of the internal pipe, and a fixing block is provided between the heating pipe and the internal pipe.

[0008] Preferably, a heating drum is provided inside the heating tube, and the heating tube is disposed inside the heating element.

[0009] Preferably, the heating tube sidewall is provided with a screw cap, which fits into the sidewall of the heating element.

[0010] Preferably, a locking ring is provided between the connector and the internal pipe, and the connector is located inside the outer casing.

[0011] Preferably, the outer sleeve is fitted over the outside of the oil outlet pipe, and the outer sleeve has a frustum-shaped structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this invention, when material oil is introduced into the internal pipe of the heating element through the oil inlet pipe, a heat exchange liquid with heat is simultaneously introduced into the heating element through the liquid inlet pipe. This causes the material oil to be dispersed into four branches by the internal pipe, where it exchanges heat with the heat exchange liquid inside the heating element. This achieves preheating of the material oil and solves the problem of poor heating efficiency of the central part of the internal pipe fluid in common shell-and-tube heat exchangers. This results in better preheating effect of the material oil in the internal pipe. At the same time, the arc-shaped structure of the connector can mix the heated material oil when it enters the oil outlet pipe at the output end of the internal pipe, thereby making the temperature of the heated material oil more uniform.

[0014] 2. In this invention, when the material oil is preheated, the heating drum inside the heating tube is energized to heat the heat exchange liquid, thereby providing a supplementary heating effect on the heat exchange liquid inside the heating element. This makes the heat loss rate of the heat exchange liquid slower when it flows and exchanges heat inside the heating element, which helps to improve the heating efficiency of the heat exchange liquid inside the heating element. At the same time, when the heating drum needs to be inspected and maintained, the screw cap can be unscrewed and the heating drum can be taken out, which allows for convenient disassembly and maintenance of the heating drum. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the present invention when the outer jacket is removed;

[0017] Figure 3 This is a schematic diagram of the side wall structure of the heating element of this utility model;

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of the heating element of this utility model;

[0019] Figure 5 This is a schematic diagram showing the disassembled structure of the heating tube and screw cap of this utility model.

[0020] In the diagram: 100, sleeve; 101, control panel; 102, inlet pipe; 103, outlet pipe; 110, outer sleeve; 111, oil inlet pipe; 112, oil outlet pipe; 120, heating element; 121, internal pipe; 113, connector; 114, locking ring; 130, heating tube; 131, fixing block; 132, heating drum; 133, tightening cap. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example

[0023] Please see Figures 1-5The illustration shows a petroleum coke feedstock pretreatment device, including a sleeve 100. A heating element 120 is installed inside the sleeve 100. The sleeve 100 can be made of commercially available heat-insulating foam, while the heating element 120 is made of stainless steel. An inlet pipe 102 and an outlet pipe 103, which are fitted to the heating element 120, are provided on the outer wall of the sleeve 100. An external liquid pump is connected to the input end of the inlet pipe 102. The external liquid pump is powered by an external power source via a push-button switch and a power cord. The pump delivers heat exchange liquid with heat from an external thermal oil heater to the outside of the internal pipe 121 of the heating element 120. The heat exchange liquid can be common thermal oil. The outlet pipe 103 is used to connect to the thermal oil heater for circulating the thermal oil. This is prior art. A control panel 101 is fixed to the outer wall of the thermal oil heater sleeve 100. The control panel 101 uses a commercially available electronic temperature control switch with an electric heating wire. The electronic temperature control switch consists of a control circuit, a display, and a switch driver. The heating element 120 is composed of a dynamic circuit that monitors the temperature of the electric heating wire in real time through a thermocouple temperature sensor. The measured temperature signal is transmitted to the control circuit, which compares it with the target temperature set by the user. When the actual temperature reaches the set value, the switch drive circuit cuts off the power and stops heating. When the temperature is lower than the set value, the switch drive circuit reconnects the power and starts heating again. This is existing technology. The control panel 101 is powered by an external power supply connected to a power cord. The heating element 120 has multiple internal pipes 121. The internal pipes 121 are made of commonly available copper pipes. The output end of the internal pipes 121 is provided with a connector 113. The output end of the connector 113 is provided with an oil outlet pipe 112. The input end of the internal pipes 121 is also provided with a connector 113 connected to the oil inlet pipe 111. The material oil enters the internal pipes 121 through the connector 113 of the oil inlet pipe 111, and then is discharged to the oil outlet pipe 112 through the connector 113 at the right end of the internal pipes 121.

[0024] Specifically, sleeve 100 is provided with outer sleeves 110 at both ends. The outer sleeves 110 are made of common heat-insulating foam board by bending. The side wall of the outer sleeves 110 is provided with oil inlet pipes 111. The raw material pretreatment device can be connected to the material oil conveying oil line by using the oil inlet pipes 111 and oil outlet pipes 112.

[0025] Furthermore, a heating tube 130 is provided on the side wall of the internal pipe 121. The heating tube 130 is made of copper pipe. A fixing block 131 is provided between the heating tube 130 and the internal pipe 121. A connecting block is fixed between the internal pipe 121 and the inner wall of the heating element 120.

[0026] Furthermore, a heating drum 132 is provided inside the heating tube 130. The heating drum 132 uses an electric heating wire, which is mainly composed of a nickel-chromium alloy wire, a copper outer sheath, and a thermocouple, and is connected to the control panel 101. When the electric heating belt 123 is energized, the nickel-chromium alloy wire generates heat. At the same time, the thermocouple is used to detect the temperature and cooperate with the control panel 101 to adjust the temperature. The heating tube 130 is located inside the heating element 120.

[0027] Furthermore, a screw cap 133 is provided on the side wall of the heating tube 130, and the screw cap 133 is fitted to the side wall of the heating element 120.

[0028] It is worth noting that a locking ring 114 is provided between the connector 113 and the internal pipe 121. The locking ring 114 is a pipe connector with threads on its inner wall. The internal pipe 121 and the outer wall of the connector 113 are threaded to fit the locking ring 114.

[0029] In some embodiments, a common connecting flange can be used to replace the locking ring 114 to achieve the connection between the connector 113 and the internal pipe 121.

[0030] The connector 113 is located inside the outer casing 110.

[0031] It is worth noting that the outer sleeve 110 is fitted onto the outside of the oil outlet pipe 112, and the outer sleeve 110 has a frustum-shaped structure.

[0032] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0033] Working principle: When material oil is introduced into the internal pipe 121 of the heating element 120 through the oil inlet pipe 111, a heat-exchange liquid with heat is simultaneously introduced into the heating element 120 through the liquid inlet pipe 102. This causes the material oil to be dispersed into four branches by the internal pipe 121, where it exchanges heat with the heat-exchange liquid inside the heating element 120. This achieves preheating of the material oil, solving the problem of poor heating efficiency in the central part of the internal pipe fluid in common shell-and-tube heat exchangers, resulting in better preheating of the material oil in the internal pipes. During preheating, the heating drum 132 inside the heating tube 130 is energized, which can heat the heat exchange liquid with heat, thereby providing a supplementary heating effect on the heat exchange liquid inside the heating element 120. This makes the heat loss rate of the heat exchange liquid slower when it flows and exchanges heat inside the heating element 120, which helps to improve the heating efficiency of the heat exchange liquid inside the heating element 120. At the same time, when it is necessary to inspect and maintain the heating drum 132, the screw cap 133 can be unscrewed and the heating drum 132 can be taken out, which can facilitate the removal and maintenance of the heating drum 132.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A petroleum coke feedstock pretreatment apparatus comprising a sleeve (100), characterized in that: The sleeve (100) is internally provided with a heating element (120), the outer wall of the sleeve (100) is provided with a liquid inlet pipe (102) and a liquid outlet pipe (103) matched with the heating element (120), the outer wall of the sleeve (100) is fixedly connected with a control panel (101), the heating element (120) is internally provided with a plurality of internal pipes (121), the output end of the internal pipe (121) is provided with a connecting piece (113), and the output end of the connecting piece (113) is provided with an oil outlet pipe (112).

2. A petroleum coke feedstock pretreatment apparatus according to claim 1, characterized in that: The sleeve (100) is provided with an outer sleeve (110) at both ends, and the side wall of the outer sleeve (110) is provided with an oil inlet pipe (111).

3. A petroleum coke feedstock pretreatment apparatus as claimed in claim 1, characterized in that: The side wall of the internal pipe (121) is provided with a heating pipe (130), and the heating pipe (130) and the internal pipe (121) are provided with a fixed block (131) therebetween.

4. A petroleum coke feedstock pretreatment apparatus according to claim 3, characterized in that: The heating pipe (130) is internally provided with a heating drum (132), and the heating pipe (130) is arranged in the heating element (120).

5. A petroleum coke feedstock pretreatment apparatus as claimed in claim 3, characterized in that: The side wall of the heating pipe (130) is provided with a screw cap (133), and the screw cap (133) is matched with the side wall of the heating element (120).

6. A petroleum coke feedstock pretreatment apparatus according to claim 1, characterized by: The connecting piece (113) and the internal pipe (121) are provided with a locking ring (114) therebetween, and the connecting piece (113) is arranged in the internal pipe (121).

7. A petroleum coke feedstock pretreatment apparatus as claimed in claim 2, characterized in that: The outer sleeve (110) is arranged outside the oil outlet pipe (112), and the outer sleeve (110) is in a circular truncated cone structure.

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