A tubular mixing device
Patent Information
- Application Number
- CN202522136387.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-08-28
- Estimated Expiration
- 2035-10-10
AI Technical Summary
[0002]在煤炭热解前需要对煤炭进行干燥，现有的干燥方式是将低温煤气管道与高温煤气管道进行对接，使低温煤气（200-300℃）和高温煤气（800-900℃）在混合后通入到煤炭的干燥腔室内，低温煤气和高温煤气进行热交换，以平衡混合煤气的干燥温度，使煤炭不易因温度过高而热解或因温度过低而无干燥效果
本申请一种管式混合装置包括低温管道、高温管道、混合组件、导流件和引流管，其中，低温煤气能够在引流管的限制下加速冲击在扇叶上，以驱动扇叶加速旋转，引流管使高温煤气直接流动到导流件的导流面上，导流面能够使高温煤气均匀流向低温煤气，旋转的扇叶对高温煤气和低温煤气进行搅动，以使高温煤气和低温煤气能够进行均匀混合，且在低温煤气对扇叶的加速冲击作用下，能够降低扇叶旋转所损耗的压力能，从而提高了低温煤气和高温煤气的混合均匀性，使得混合煤气的温度能够均匀。
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Figure CN224686624U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of gas mixing, and in particular to a tubular mixing device. Background Technology
[0002] Before coal pyrolysis, it needs to be dried. The existing drying method is to connect a low-temperature gas pipeline with a high-temperature gas pipeline, so that the low-temperature gas (200-300℃) and the high-temperature gas (800-900℃) are mixed and then introduced into the coal drying chamber. The low-temperature gas and the high-temperature gas exchange heat to balance the drying temperature of the mixed gas, so that the coal is not easily pyrolyzed due to excessively high temperature or not dried effectively due to excessively low temperature.
[0003] Direct mixing of low-temperature and high-temperature coal gas results in poor overall uniformity of the mixture, which in turn leads to uneven temperature distribution in the mixed gas. This causes some of the mixed gas to be too hot, leading to coal pyrolysis, while other parts of the gas may be too cold, resulting in no drying effect. Utility Model Content
[0004] In order to improve the mixing uniformity of low-temperature gas and high-temperature gas and make the temperature of the mixed gas uniform, this application provides a tubular mixing device.
[0005] This application provides a tubular mixing device, which adopts the following technical solution: A tubular mixing device includes a cryogenic pipe, a high-temperature pipe, a mixing component, and a flow guide. One end of the cryogenic pipe is used to introduce cryogenic gas, one end of the high-temperature pipe is connected to the side wall of the cryogenic pipe, the other end of the high-temperature pipe is used to introduce high-temperature gas, and the other end of the cryogenic pipe is used to discharge mixed gas. The mixing component is disposed inside the cryogenic pipe and is located near the exhaust end of the cryogenic pipe. The mixing component is used to mix the cryogenic gas and the high-temperature gas. The flow guide is disposed on the mixing component and is used to guide the cryogenic gas and the high-temperature gas to a region close to the inner wall of the cryogenic pipe.
[0006] Optionally, the guide element is provided with a conical guide surface, which is positioned facing the air inlet end of the cryogenic pipeline.
[0007] Optionally, the mixing component includes a mixing block and fan blades. The mixing block is connected to a rotating shaft, and the rotating shaft is rotatably connected to a support. The support is connected to the inner wall of the low-temperature pipeline. Multiple fan blades are arranged around the mixing block and are all connected to the mixing block. The blade surface of the fan blades is set at an angle to the flow direction of the low-temperature gas.
[0008] Optionally, a drainage pipe is provided inside the low-temperature pipeline, with one end of the drainage pipe connected to the high-temperature pipeline and the other end of the drainage pipe facing the guide element.
[0009] Optionally, a gap is left between the outer wall of the drainage pipe and the inner wall of the low-temperature pipeline to allow for the flow of low-temperature gas.
[0010] Optionally, the exhaust end of the low-temperature pipeline is connected to a distribution box, and multiple through-holes are provided on both sides of the distribution box along the flow direction of the mixed gas.
[0011] Optionally, each of the nozzles is provided with a temperature measuring element, which is used to measure the temperature of the gas ejected from the nozzle.
[0012] In summary, this application includes at least one of the following beneficial technical effects: This application discloses a tubular mixing device comprising a cryogenic pipe, a high-temperature pipe, a mixing component, a flow guide, and a diversion pipe. The cryogenic gas, under the constraint of the diversion pipe, accelerates and impacts the fan blades, driving them to rotate rapidly. The diversion pipe allows the high-temperature gas to flow directly onto the flow guide surface of the flow guide, which enables the high-temperature gas to flow evenly towards the cryogenic gas. The rotating fan blades agitate the high-temperature and cryogenic gas, ensuring uniform mixing. Furthermore, the accelerating impact of the cryogenic gas on the fan blades reduces the pressure energy lost during blade rotation, thereby improving the mixing uniformity of the cryogenic and high-temperature gas and ensuring a uniform temperature of the mixed gas. Attached Figure Description
[0013] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a schematic diagram of the hybrid component.
[0014] Explanation of reference numerals in the attached figures: 1. Low-temperature pipeline; 2. High-temperature pipeline; 3. Mixing assembly; 31. Mixing block; 32. Fan blade; 33. Rotating shaft; 34. Support; 4. Flow guide; 41. Flow guide surface; 5. Drain pipe; 6. Distribution box; 61. Spray hole; 7. Temperature measuring element. Detailed Implementation
[0015] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.
[0016] This application discloses a tubular mixing device. (Refer to...) Figure 1 and Figure 2 A tubular mixing device includes a low-temperature pipe 1, a high-temperature pipe 2, a mixing component 3, and a flow guide 4.
[0017] Reference Figure 2 One end of the low-temperature pipeline 1 is used to introduce low-temperature coal gas, one end of the high-temperature pipeline 2 is connected to the side wall of the low-temperature pipeline 1, the other end of the high-temperature pipeline 2 is used to introduce high-temperature coal gas, and the other end of the low-temperature pipeline 1 is used to discharge mixed coal gas.
[0018] The mixing component 3 is installed inside the low-temperature pipeline 1 and is located near the exhaust end of the low-temperature pipeline 1. The mixing component 3 is used to mix low-temperature gas and high-temperature gas. The guide component 4 is installed on the mixing component 3 and is used to guide the low-temperature gas and high-temperature gas to the area near the inner wall of the low-temperature pipeline 1.
[0019] In use, high-temperature coal gas is introduced from high-temperature pipeline 2 into low-temperature pipeline 1. The low-temperature coal gas and high-temperature coal gas in low-temperature pipeline 1 flow together to the guide component 4. The guide component 4 directs the low-temperature coal gas and high-temperature coal gas to the area near the inner wall of low-temperature pipeline 1 to reduce the flow cross-section of the low-temperature coal gas and high-temperature coal gas. The mixing component 3 mixes the low-temperature coal gas and high-temperature coal gas in the area near the inner wall of low-temperature pipeline 1. Because the flow cross-section of the low-temperature coal gas and high-temperature coal gas is reduced, the mixing component 3 can quickly mix the low-temperature coal gas and high-temperature coal gas evenly, thereby improving the mixing uniformity of the low-temperature coal gas and high-temperature coal gas and making the temperature of the mixed coal gas uniform.
[0020] Specifically, refer to Figure 2 The guide member 4 is provided with a conical guide surface 41, which is set towards the gas inlet end of the low temperature pipeline 1. The conical guide surface 41 enables the low temperature gas and high temperature gas flowing towards itself to flow towards the inner wall of the low temperature pipeline 1, so that the low temperature gas and high temperature gas can converge in the area close to the inner wall of the low temperature pipeline 1, thereby reducing the flow cross section of the low temperature gas and high temperature gas.
[0021] In this embodiment, the conical guide surface 41 is coaxially arranged with the low-temperature pipeline 1 to facilitate uniform flow of gas.
[0022] Specifically, refer to Figure 2 The mixing component 3 includes a mixing block 31 and a fan blade 32.
[0023] A rotating shaft 33 is fixedly connected to the mixing block 31, and a bracket 34 is rotatably connected to the rotating shaft 33. The bracket 34 is fixedly connected to the inner wall of the low-temperature pipeline 1. Multiple fan blades 32 are arranged around the mixing block 31 and are all fixedly connected to the mixing block 31. The blade surface of the fan blades 32 is set at an angle to the flow direction of the low-temperature gas.
[0024] In this embodiment, the flow guide 4 is fixedly connected to the mixing block 31 so that the flow guide 4 can guide the low temperature gas and high temperature gas to the fan blade 32.
[0025] Since the blade surface of the fan blade 32 is set at an angle to the flow direction of the low-temperature gas, when the flowing gas impacts the fan blade 32, the flowing gas can apply a driving force to the fan blade 32 to rotate around the axis of the rotating shaft 33, so that the fan blade 32 can rotate. The rotating fan blade 32 can stir the low-temperature gas and the high-temperature gas, thereby making it easy for the low-temperature gas and the high-temperature gas to mix evenly.
[0026] Reference Figure 2 In order to enhance the mixing effect of low-temperature gas and high-temperature gas, a diversion pipe 5 is installed in the low-temperature pipeline 1. One end of the diversion pipe 5 is connected to the high-temperature pipeline 2, and the other end of the diversion pipe 5 is directed towards the guide component 4. The diversion pipe 5 can directly divert the high-temperature gas to the guide component 4, and the guide component 4 can make the high-temperature gas diffuse evenly to the low-temperature gas, thereby helping the high-temperature gas to be evenly mixed into the low-temperature gas.
[0027] In this embodiment, the end of the diversion pipe 5 facing the flow guide 4 is coaxially arranged with the flow guide surface 41 of the flow guide 4, so as to facilitate the uniform flow of high-temperature gas to the inner wall of the low-temperature pipeline 1.
[0028] Reference Figure 2 In order to facilitate the uniform mixing of low-temperature gas and high-temperature gas, a gap is left between the outer wall of the inlet pipe 5 and the inner wall of the low-temperature pipe 1 to allow the low-temperature gas to flow. Because of the gap between the inlet pipe 5 and the low-temperature pipe 1, the low-temperature gas can flow from the gap between the inlet pipe 5 and the low-temperature pipe 1 to the mixing component 3. Before the low-temperature gas and the high-temperature gas are mixed, the low-temperature gas can surround the high-temperature gas in a ring shape. Thus, with the assistance of the guide component 4, the high-temperature gas and the low-temperature gas can be uniformly mixed in the area near the inner wall of the low-temperature pipe 1.
[0029] In this embodiment, the end of the drainage pipe 5 facing the guide member 4 is coaxially arranged with the low-temperature pipe 1, and the distance between the outer wall of the drainage pipe 5 and the inner wall of the low-temperature pipe 1 is uniformly arranged.
[0030] In this embodiment, the diversion pipe 5 reduces the flow cross-section of the low-temperature gas and increases the flow velocity of the low-temperature gas in the low-temperature pipeline 1, enabling the low-temperature gas to accelerate towards the fan blade 32 and drive the fan blade 32 to rotate faster. This allows the fan blade 32 to more effectively agitate the low-temperature gas and the high-temperature gas, and the increased kinetic energy of the low-temperature gas is converted into the mechanical energy of the rotating fan blade 32. This reduces the difference between the average pressure of the low-temperature gas and the high-temperature gas before mixing and the average pressure of the mixed gas, thereby reducing the pressure energy loss of the mixed gas under the condition of fully and uniformly mixing the low-temperature gas and the high-temperature gas.
[0031] Reference Figure 1 and Figure 2 In order to ensure that the mixed gas can be evenly injected into the drying chamber of the coal, the exhaust end of the low temperature pipeline 1 is connected to the distribution box 6. Along the flow direction of the mixed gas, multiple through nozzles 61 are opened on both sides of the distribution box 6.
[0032] The mixed gas can first flow into the distribution box 6, and then be injected into the coal drying chamber from multiple nozzles 61 on the distribution box 6. This allows the mixed gas to be injected into the drying chamber from multiple locations. Compared with the mixed gas being directly injected into the drying chamber from the low-temperature pipeline 1, the distribution of the mixed gas in the drying chamber is more uniform.
[0033] Reference Figure 2 In order to accurately determine the mixing effect of low-temperature gas and high-temperature gas, a temperature measuring element 7 is installed at each nozzle 61. The temperature measuring element 7 is used to measure the temperature of the gas ejected from the nozzle 61.
[0034] The temperature of the mixed gas at each nozzle 61 is measured by the temperature measuring element 7, so that the user can accurately know the temperature of the mixed gas at each nozzle 61. By comparing the temperature values measured by multiple temperature measuring elements 7, it can be determined whether the mixing of low temperature gas and high temperature gas is uniform.
[0035] In this embodiment, the temperature measuring element 7 is a temperature sensor.
[0036] The implementation principle of the tubular mixing device in this application embodiment is as follows: During use, the low-temperature gas impacts each fan blade 32 in a ring state under the restriction of the diversion pipe 5, thereby driving the fan blade 32 to rotate faster. The high-temperature gas directly impacts the guide surface 41 of the guide member 4 under the diversion pipe 5. The guide member 4 makes the high-temperature gas flow evenly to the area near the inner wall of the low-temperature pipe 1 through the guide surface 41, so that the low-temperature gas and the high-temperature gas can be stirred and mixed evenly by the fan blade 32 in the area near the inner wall of the low-temperature pipe 1, thereby improving the mixing uniformity of the low-temperature gas and the high-temperature gas and making the temperature of the mixed gas uniform.
[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A tubular mixing device, characterized in that: It includes a low-temperature pipe (1), a high-temperature pipe (2), a mixing component (3), and a guide component (4). One end of the low-temperature pipe (1) is used to introduce low-temperature gas, one end of the high-temperature pipe (2) is connected to the side wall of the low-temperature pipe (1), the other end of the high-temperature pipe (2) is used to introduce high-temperature gas, and the other end of the low-temperature pipe (1) is used to discharge mixed gas. The mixing component (3) is set inside the low-temperature pipe (1) and is set near the exhaust end of the low-temperature pipe (1). The mixing component (3) is used to mix low-temperature gas and high-temperature gas. The guide component (4) is set on the mixing component (3) and is used to guide the low-temperature gas and high-temperature gas to the area near the inner wall of the low-temperature pipe (1).
2. The tubular mixing device according to claim 1, characterized in that: The guide member (4) is provided with a conical guide surface (41), which is set towards the air inlet end of the low temperature pipe (1).
3. The tubular mixing device according to claim 1, characterized in that: The mixing component (3) includes a mixing block (31) and fan blades (32). The mixing block (31) is connected to a rotating shaft (33), which is rotatably connected to a support (34). The support (34) is connected to the inner wall of the low-temperature pipeline (1). Multiple fan blades (32) are arranged around the mixing block (31) and are all connected to the mixing block (31). The blade surface of the fan blades (32) is set at an angle to the flow direction of the low-temperature gas.
4. A tubular mixing device according to claim 1, characterized in that: The low-temperature pipeline (1) is provided with a drainage pipe (5), one end of which is connected to the high-temperature pipeline (2), and the other end of which is directed toward the guide element (4).
5. A tubular mixing device according to claim 4, characterized in that: A gap is left between the outer wall of the drainage pipe (5) and the inner wall of the low-temperature pipe (1) to allow the flow of low-temperature gas.
6. A tubular mixing device according to claim 1, characterized in that: The exhaust end of the low-temperature pipeline (1) is connected to a distribution box (6). Along the flow direction of the mixed gas, multiple through nozzles (61) are provided on both sides of the distribution box (6).
7. A tubular mixing device according to claim 6, characterized in that: Each of the nozzles (61) is provided with a temperature measuring element (7) for measuring the temperature of the gas ejected from the nozzle (61).