Waste heat recovery device for coal chemical industry

Abstract

The utility model discloses a coal chemical industry waste heat recovery device which comprises a recovery box, a supporting assembly is installed on the bottom face of the recovery box, an induction assembly is installed on the front face of the recovery box, a transmission assembly is installed in the recovery box, and an air exhaust assembly is installed on the back face of the recovery box. And a filtering assembly is mounted at the bottom end of the air exhaust assembly and comprises a filtering cylinder, the filtering cylinder is located on the back face of the recycling box, and a mounting frame is mounted on the outer surface of the filtering cylinder. According to the device, coal dust in coal gas can be filtered out under the action of a metal fiber filter plate in the filter assembly through the mounted filter assembly, so that the coal dust is prevented from flowing out along with the gas and adhering to the inner wall of a pipeline; therefore, by means of the device, the problem that according to an existing device, due to the fact that coal dust in coal gas can adhere to the inner wall of the spiral pipe, the interior of the spiral pipe is thickened, and the heat exchange efficiency is affected is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of coal chemical industry, and in particular to a waste heat recovery device for coal chemical industry. Background Technology

[0002] Coal chemical industry refers to the process of using coal as raw material and chemically processing it into gaseous, liquid, and solid fuels and chemicals. It mainly includes coal gasification, liquefaction, dry distillation, as well as tar processing and calcium carbide acetylene chemical industry. In the coal chemical processing process, waste heat recovery devices are required to recover and utilize the waste heat when the waste gas is discharged.

[0003] Chinese patent CN106825250B discloses a waste heat recovery device for coal chemical industry, including a vessel. The vessel has channels at both ends and at the front and back, with a sliding connection mechanism installed at the front end of each channel. A storage cavity is located in the middle of the top of the vessel, and a gas inlet is located at the upper interior of the vessel. A liquid cavity is located at the lower interior of the vessel, with a guide plate installed on the inner side of the liquid cavity. The end wall of the guide plate has perforations. However, the aforementioned patent has some shortcomings. The coal gas contains a large amount of coal dust, which adheres to the inner wall of the spiral tube, thickening the interior and affecting the efficiency of heat exchange. Therefore, we propose a waste heat recovery device for coal chemical industry to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a waste heat recovery device for coal chemical industry to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A waste heat recovery device for coal chemical industry includes a recovery box, a support assembly installed on the bottom surface of the recovery box, a sensing assembly installed on the front surface of the recovery box, a transmission assembly installed inside the recovery box, an air extraction assembly installed on the back surface of the recovery box, and a filter assembly installed at the bottom of the air extraction assembly.

[0007] In a further embodiment, the filtration assembly includes a filter cartridge located on the back of the recycling bin, an mounting frame being installed on the outer surface of the filter cartridge, and a metal fiber filter plate being installed inside the mounting frame.

[0008] In a further embodiment, the inner wall of the mounting frame is provided with multiple slots, and the outer surface of the metal fiber filter plate is provided with multiple blocks, each slot being adapted to a block.

[0009] In a further embodiment, the air extraction assembly includes an air extraction pump located on the outer surface of the recycling bin, with the input end of the air extraction pump connected to a first connecting pipe, the bottom end of which is connected to the top end of the filter cartridge.

[0010] In a further embodiment, the transfer assembly includes a spiral tube located inside the recycling bin, with a second connecting pipe at the top end of the spiral tube connected to the output end of a vacuum pump.

[0011] In a further embodiment, the sensing component includes a temperature display and a liquid temperature sensor, the temperature display being located on the front of the recycling bin and the liquid temperature sensor being located inside the recycling bin.

[0012] In a further embodiment, the upper surface of the recycling bin is connected to a liquid injection cylinder, the top of the liquid injection cylinder is fitted with a protective cover, and the bottom surface of the recycling bin is fitted with a drain valve.

[0013] In a further embodiment, the bottom end of the filter cartridge and the bottom end of the spiral tube are respectively connected to an air injection pipe and an exhaust pipe, and both the bottom end of the air injection pipe and the bottom end of the exhaust pipe are equipped with connecting flanges.

[0014] In a further embodiment, a control panel is mounted on the front of the recycling bin, and the control panel is electrically connected to the device via wires.

[0015] In a further embodiment, the support assembly includes a plurality of support legs, each of which is located on the bottom surface of the recycling bin, and each of the support legs has an anti-slip pad installed on its bottom surface.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model discloses a waste heat recovery device for coal chemical industry. By installing a filter assembly in front of the recovery box, the coal dust in the coal gas can be filtered out by the metal fiber filter plate in the filter assembly, thereby preventing the coal dust from flowing out with the gas and adhering to the inner wall of the pipe. Therefore, this device effectively solves the problem in existing devices where coal dust in the coal gas adheres to the inner wall of the spiral tube, causing the spiral tube to thicken and thus affecting the efficiency of heat exchange. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a waste heat recovery device for coal chemical industry.

[0019] Figure 2 This is a rear view schematic diagram of a waste heat recovery device for coal chemical industry.

[0020] Figure 3This is a side-section diagram of a waste heat recovery device for coal chemical industry.

[0021] Figure 4 This is a schematic diagram of the front section of the mounting frame in a coal chemical waste heat recovery device.

[0022] Figure 5 This is a bottom view schematic diagram of a waste heat recovery device for coal chemical industry.

[0023] In the diagram: 1. Recycling bin; 2. Support assembly; 3. Sensing assembly; 4. Vacuum assembly; 5. Filter assembly; 6. Transfer assembly; 7. Protective cover; 8. Control panel; 9. Injection cylinder; 10. Temperature display; 11. Vacuum pump; 12. First connecting pipe; 13. Mounting frame; 14. Injection pipe; 15. Metal fiber filter plate; 16. Filter cylinder; 17. Second connecting pipe; 18. Liquid temperature sensor; 19. Spiral tube; 20. Locking block; 21. Locking slot; 22. Exhaust pipe; 23. Anti-slip pad; 24. Support leg; 25. Drain valve. Detailed Implementation

[0024] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] 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.

[0027] Please see Figure 1-5 In this utility model, a waste heat recovery device for coal chemical industry includes a recovery box 1. A support component 2 is installed on the bottom surface of the recovery box 1, a sensing component 3 is installed on the front surface of the recovery box 1, a transmission component 6 is installed inside the recovery box 1, an exhaust component 4 is installed on the back surface of the recovery box 1, and a filter component 5 is installed at the bottom end of the exhaust component 4. The filter component 5 includes a filter cylinder 16, which is located on the back surface of the recovery box 1. An installation frame 13 is installed on the outer surface of the filter cylinder 16, and a metal fiber filter plate 15 is installed inside the installation frame 13. By installing the filter component 5 in front of the recovery box 1, coal dust in the coal gas is filtered out, thereby preventing coal dust from flowing out with the gas and adhering to the inner wall of the pipe.

[0028] The inner wall of the mounting frame 13 is provided with multiple slots 21, and the outer surface of the metal fiber filter plate 15 is provided with multiple blocks 20. Each slot 21 is adapted to the block 20. Through the mutual interlocking action of multiple slots 21 and blocks 20, the metal fiber filter plate 15 can be fixed, ensuring the stability of the metal fiber filter plate 15. The metal fiber filter plate 15 is a filter medium made of woven metal fibers. Dust particles are intercepted when passing through, and it is resistant to high temperature, making it suitable for gas purification in high temperature and high pressure environments.

[0029] The gas extraction assembly 4 includes a gas extraction pump 11, which is located on the outer surface of the recovery box 1. The input end of the gas extraction pump 11 is connected to a first connecting pipe 12, and the bottom end of the first connecting pipe 12 is connected to the top end of the filter cylinder 16. Through the gas extraction pump 11, the gas can be easily extracted into the recovery box 1.

[0030] The transfer component 6 includes a spiral tube 19, which is located inside the recovery box 1. The top end of the spiral tube 19 is connected to a second connecting pipe 17, and the top end of the second connecting pipe 17 is connected to the output end of the air pump 11. The spiral tube 19 comes into contact with the solution in the recovery box 1, and the heat of the gas can be transferred.

[0031] The sensing component 3 includes a temperature display 10 and a liquid temperature sensor 18. The temperature display 10 is located on the front of the recycling bin 1, and the liquid temperature sensor 18 is located inside the recycling bin 1. A control panel 8 is installed on the front of the recycling bin 1. The control panel 8 is electrically connected to the device via wires. The liquid temperature sensor 18 is a device used to measure the temperature of a liquid, commonly referred to as a temperature sensor. It detects the temperature of the liquid and transmits this information to a relevant control system or display device for appropriate adjustments and control. It is connected to the temperature display 10 to display the temperature. The device can be easily controlled through the control panel 8.

[0032] The upper surface of the recycling tank 1 is connected to the liquid injection cylinder 9, and the top of the liquid injection cylinder 9 is equipped with a protective cover 7. The bottom surface of the recycling tank 1 is equipped with a drain valve 25. The bottom end of the filter cylinder 16 and the bottom end of the spiral tube 19 are respectively connected to the air injection pipe 14 and the exhaust pipe 22. The bottom ends of the air injection pipe 14 and the exhaust pipe 22 are both equipped with connecting flanges. Through the liquid injection cylinder 9 and the liquid injection valve 25, liquid can be easily injected or discharged. Through the air injection pipe 14 and the exhaust pipe 22, gas can be easily injected or discharged.

[0033] The support assembly 2 includes multiple support legs 24, each of which is located on the bottom surface of the recycling bin 1. Each support leg 24 has an anti-slip pad 23 installed on its bottom surface to ensure the stability of the device during operation.

[0034] The working principle of this utility model is as follows:

[0035] When using this coal chemical waste heat recovery device, the staff first places the device in a suitable position and checks all components to ensure normal operation. Then, the gas injection pipe 14 and exhaust pipe 22 are connected to the gas supply and exhaust devices, respectively, so that coal gas can enter the device. Next, the solution to be used is poured into the recovery tank 1 through the liquid injection cylinder 9. At the same time, the gas extraction component 4 in the device is activated to draw the coal gas into the recovery tank 1. After the recovery operation is completed, the liquid drain valve 25 is opened to drain and collect the liquid in the recovery tank 1. Finally, the staff removes the metal fiber filter plate 15 and cleans or replaces it.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waste heat recovery device for coal chemical industry, characterized in that: The system includes a recycling bin (1), a support assembly (2) installed on the bottom surface of the recycling bin (1), a sensing assembly (3) installed on the front surface of the recycling bin (1), a transmission assembly (6) installed inside the recycling bin (1), an air extraction assembly (4) installed on the back surface of the recycling bin (1), and a filter assembly (5) installed at the bottom end of the air extraction assembly (4).

2. The waste heat recovery device for coal chemical industry according to claim 1, characterized in that: The filter assembly (5) includes a filter cylinder (16) located on the back of the recycling bin (1). A mounting frame (13) is installed on the outer surface of the filter cylinder (16), and a metal fiber filter plate (15) is installed inside the mounting frame (13).

3. The waste heat recovery device for coal chemical industry according to claim 2, characterized in that: The inner wall of the mounting frame (13) is provided with multiple slots (21), and the outer surface of the metal fiber filter plate (15) is provided with multiple blocks (20), each slot (21) being adapted to a block (20).

4. The waste heat recovery device for coal chemical industry according to claim 1, characterized in that: The air extraction assembly (4) includes an air extraction pump (11), which is located on the outer surface of the recycling box (1). The input end of the air extraction pump (11) is connected to a first connecting pipe (12), and the bottom end of the first connecting pipe (12) is connected to the top end of the filter cylinder (16).

5. A waste heat recovery device for coal chemical industry according to claim 1, characterized in that: The transfer assembly (6) includes a spiral tube (19) located inside the recycling bin (1). The top end of the spiral tube (19) is connected to a second connecting pipe (17), and the top end of the second connecting pipe (17) is connected to the output end of the air pump (11).

6. The waste heat recovery device for coal chemical industry according to claim 1, characterized in that: The sensing component (3) includes a temperature display (10) and a liquid temperature sensor (18), the temperature display (10) being located on the front of the recycling bin (1) and the liquid temperature sensor (18) being located inside the recycling bin (1).

7. A waste heat recovery device for coal chemical industry according to claim 1, characterized in that: The upper surface of the recycling box (1) is connected to a liquid injection cylinder (9), a protective cover (7) is installed at the top of the liquid injection cylinder (9), and a drain valve (25) is installed on the bottom surface of the recycling box (1).

8. A waste heat recovery device for coal chemical industry according to claim 2, characterized in that: The bottom end of the filter cylinder (16) and the bottom end of the spiral tube (19) are respectively connected to an air injection pipe (14) and an exhaust pipe (22), and both the bottom end of the air injection pipe (14) and the bottom end of the exhaust pipe (22) are equipped with connecting flanges.

9. A waste heat recovery device for coal chemical industry according to claim 1, characterized in that: The front of the recycling bin (1) is equipped with a control panel (8), which is electrically connected to the device via wires.

10. A waste heat recovery device for coal chemical industry according to claim 1, characterized in that: The support assembly (2) includes multiple support legs (24), each of which is located on the bottom surface of the recycling bin (1), and each of the support legs (24) is fitted with an anti-slip pad (23).

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