Petroleum coke calcination flue gas cooler

Abstract

The utility model discloses a petroleum coke calcination flue gas cooler, which relates to the technical field of petroleum coke calcination process and comprises a steel structure support frame, a platform ladder is fixedly mounted on the right side of the steel structure support frame, and a first cooler is fixedly mounted in an inner cavity of the steel structure support frame. A second cooler located on the right side of the first cooler is fixedly installed in an inner cavity of the steel structure supporting frame. By means of the design of the first cooler and the second cooler, high-temperature smoke can flow through inner cavities of the first cooler and the second cooler, and in the flowing process, external cold air can be conveyed to pipeline inner cavities of the upper transverse pipe set and the lower transverse pipe set through the design of the axial flow fan; and cold air and flue gas can exchange heat through pipelines of the upper transverse pipe group and the lower transverse pipe group, so that the temperature of the cold air can be increased for heating equipment to use, the function of recycling heat of the flue gas is realized, and the utilization efficiency of energy is improved.

Description

Technical Field

[0001] This utility model relates to the field of petroleum coke calcination process technology, specifically to a petroleum coke calcination flue gas cooler. Background Technology

[0002] Petroleum coke calcination is a process in which crude oil is refined through distillation and other treatments, followed by a series of heating and cooling steps to obtain petroleum coke. Petroleum coke is a high-carbon solid fuel, commonly used as both fuel and raw material in steel production and aluminum smelting.

[0003] During the intermittent calcination of petroleum coke, a large amount of high-temperature flue gas is generated. This high-temperature flue gas cannot be directly discharged into the atmosphere and needs to be treated for environmental protection. However, due to the large amount of heat inside the flue gas, direct environmental treatment would result in poor treatment efficiency and waste of heat. Utility Model Content

[0004] The purpose of this invention is to provide a petroleum coke calcination flue gas cooler to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A petroleum coke calcination flue gas cooler includes a steel structure support frame. A platform ladder is fixedly installed on the right side of the steel structure support frame. A first cooler is fixedly installed in the inner cavity of the steel structure support frame. A second cooler is fixedly installed in the inner cavity of the steel structure support frame, located to the right of the first cooler. An upper horizontal pipe assembly is fixedly installed in the inner cavity of both the first and second coolers. A lower horizontal pipe assembly located below the upper horizontal pipe assembly is fixedly installed in the inner cavity of both the first and second coolers. An axial flow fan is fixedly installed on the back of both the first and second coolers.

[0007] Preferably, a transfer pipe is fixedly connected to the bottom of the first cooler, and the end of the transfer pipe away from the first cooler is fixedly connected to the bottom of the second cooler.

[0008] Preferably, the number of axial flow fans is set to four, and the four axial flow fans are respectively arranged on the back of the upper horizontal pipe group and the lower horizontal pipe group.

[0009] Preferably, the bottom of both the No. 1 cooler and the No. 2 cooler are fixedly connected to ash hoppers, and the bottom of the ash hoppers is fixedly connected to ash discharge valves.

[0010] Preferably, a soot blower is fixedly installed on the outer wall of both the No. 1 and No. 2 coolers.

[0011] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0012] This utility model provides a petroleum coke calcination flue gas cooler to address the problem of poor direct treatment effect of existing environmental protection equipment on flue gas. Through the design of a primary and secondary cooler, high-temperature flue gas can flow through its internal cavity. During this flow, an axial flow fan delivers cool air from the outside into the upper and lower horizontal pipe groups. The cool air and flue gas exchange heat through the pipe groups, raising the temperature of the cool air for use in heating equipment. This achieves the function of recovering and utilizing the heat from the flue gas, increasing energy efficiency. Simultaneously, it lowers the flue gas temperature, facilitating better treatment by subsequent environmental protection equipment and improving the environmental performance of this structure. Furthermore, the vertical layout of this structure minimizes its footprint and is suitable for actual site conditions. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a side view of the present invention.

[0015] Figure 3 This is a schematic diagram of the top structure of this utility model.

[0016] In the diagram: 1. Steel structure support frame; 2. Platform ladder; 3. Cooler No. 1; 4. Cooler No. 2; 5. Upper horizontal pipe assembly; 6. Lower horizontal pipe assembly; 7. Ash hopper; 8. Ash discharge valve; 9. Soot blower; 10. Axial flow fan. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to embodiments:

[0018] like Figures 1-3As shown, this utility model provides a petroleum coke calcination flue gas cooler, including a steel structure support frame 1. A platform ladder 2 is fixedly installed on the right side of the steel structure support frame 1. A first cooler 3 is fixedly installed in the inner cavity of the steel structure support frame 1. A second cooler 4 located to the right of the first cooler 3 is fixedly installed in the inner cavity of the steel structure support frame 1. An upper horizontal pipe assembly 5 is fixedly installed in the inner cavity of both the first cooler 3 and the second cooler 4. A lower horizontal pipe assembly 6 located below the upper horizontal pipe assembly 5 is fixedly installed in the inner cavity of both the first cooler 3 and the second cooler 4. An axial flow fan 10 is fixedly installed on the back of both the first cooler 3 and the second cooler 4. The flue gas enters from the top of the first cooler 3, passes through the inner cavity of the first cooler 3, and then enters the second cooler 4 from the bottom. Next, the flue gas is output from the top of the No. 2 cooler 4. During the process, the axial flow fan 10 absorbs cold air from the outside and then delivers it to the pipes of the upper horizontal pipe group 5 and the lower horizontal pipe group 6. The cold air exchanges heat with the flue gas through the pipes of the upper horizontal pipe group 5 and the lower horizontal pipe group 6, turning the cold air into hot air. The output ends of the upper horizontal pipe group 5 and the lower horizontal pipe group 6 are connected to heating equipment, and the hot air can be used by the heating equipment to reduce energy waste. At the same time, the temperature of the flue gas is reduced, which makes it easier for the subsequent environmental protection equipment to treat the flue gas better. The environmental protection equipment is pre-connected to the top of the No. 2 cooler 4 through pipes, so that the treated flue gas can directly enter the environmental protection equipment. The design of the steel structure support frame 1 and the platform ladder 2 makes it easy for workers to carry out maintenance on this structure.

[0019] Furthermore, such as Figures 1-3 As shown, a transfer pipe is fixedly connected to the bottom of the No. 1 cooler 3. The end of the transfer pipe away from the No. 1 cooler 3 is fixedly connected to the bottom of the No. 2 cooler 4. The number of axial flow fans 10 is set to four. The four axial flow fans 10 are respectively set on the back of the upper horizontal pipe group 5 and the lower horizontal pipe group 6. Through the design of the transfer pipe, the inner cavity of the No. 1 cooler 3 and the No. 2 cooler 4 are connected, which facilitates the transfer of the gas treated in the No. 1 cooler 3 to the interior of the No. 2 cooler 4 for secondary treatment, thereby improving the adequacy of heat recovery and the cooling effect of the flue gas. The output end of the axial flow fan 10 is aligned with the inner cavity of the pipe of the upper horizontal pipe group 5 and the lower horizontal pipe group 6. When the axial flow fan 10 is working, it can deliver air into the pipe of the upper horizontal pipe group 5 and the lower horizontal pipe group 6 to facilitate the heat exchange operation.

[0020] Furthermore, such as Figures 1-3As shown, ash hoppers 7 are fixedly connected to the bottom of both cooler 3 and cooler 4. Ash discharge valves 8 are fixedly connected to the bottom of ash hoppers 7. Soot blowers 9 are fixedly installed on the outer walls of coolers 3 and cooler 4. Through the design of soot blowers 9, the accumulated ash on the surface of the pipes of the upper horizontal pipe group 5 and the lower horizontal pipe group 6 can be blown away to ensure the heat exchange rate and realize the function of automatic cleaning, reducing the consumption of manpower. The accumulated ash will fall into the inner cavity of ash hopper 7 under the action of gravity. The ash is temporarily stored in ash hopper 7. During maintenance, the ash discharge valve 8 is opened to discharge the accumulated ash inside ash hopper 7.

[0021] The working principle of this petroleum coke calcination flue gas cooler will be explained in detail below.

[0022] like Figures 1-3 As shown, during use, the flue gas generated from the calcination of petroleum coke is introduced from the top of the No. 1 cooler 3. After passing through the inner cavity of the No. 1 cooler 3, it enters the interior of the No. 2 cooler 4 through the transfer pipe below, and then exits from the top of the No. 2 cooler 4. During the flue gas flow, the operation of the axial flow fan 10 is controlled to absorb cold air from the outside and then deliver it to the pipes of the upper horizontal pipe group 5 and the lower horizontal pipe group 6. The cold air will exchange heat with the flue gas through the pipes of the upper horizontal pipe group 5 and the lower horizontal pipe group 6, processing the cold air into hot air. The output ends of the upper horizontal pipe group 5 and the lower horizontal pipe group 6 are connected to heating equipment, and the hot air can be used by the heating equipment, while also achieving the function of cooling the flue gas.

[0023] It should be noted that, in the description of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0024] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A petroleum coke calcination flue gas cooler, characterized in that: The system includes a steel structure support frame, a platform ladder fixedly installed on the right side of the steel structure support frame, a first cooler fixedly installed in the inner cavity of the steel structure support frame, a second cooler fixedly installed to the right of the first cooler in the inner cavity of the steel structure support frame, upper horizontal pipe assemblies fixedly installed in the inner cavities of both the first and second coolers, lower horizontal pipe assemblies fixedly installed below the upper horizontal pipe assemblies in the inner cavities of both the first and second coolers, and axial flow fans fixedly installed on the back of both the first and second coolers.

2. The petroleum coke calcination flue gas cooler according to claim 1, characterized in that: A transfer pipe is fixedly connected to the bottom of the No. 1 cooler, and the end of the transfer pipe away from the No. 1 cooler is fixedly connected to the bottom of the No. 2 cooler.

3. A petroleum coke calcination flue gas cooler according to claim 1, characterized in that: The number of axial flow fans is set to four, and the four axial flow fans are respectively installed on the back of the upper horizontal pipe group and the lower horizontal pipe group.

4. A petroleum coke calcination flue gas cooler according to claim 1, characterized in that: Both the No. 1 and No. 2 coolers are fixedly connected to the bottom of an ash hopper, and the bottom of the ash hopper is fixedly connected to an ash discharge valve.

5. A petroleum coke calcination flue gas cooler according to claim 1, characterized in that: Soot blowers are fixedly installed on the outer walls of both the No. 1 and No. 2 coolers.

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