Device for uniformly mixing multiple strands of gas in gas-making furnace

Abstract

The utility model discloses a device for uniformly mixing multi-strand gas of a gas-making furnace, which comprises a mixing tank and a gas inlet header, and the gas inlet header consists of an annular main pipe and a plurality of branch pipes connected with the annular main pipe; the mixing tank is provided with a tank body, the top of the tank body is provided with a gas outlet connected with a hearth of the gas-making furnace, the bottom of the tank body is provided with a gas inlet connected with the annular main pipe, the lower part of the tank body is provided with a turbulent flow mechanism, and the middle part of the tank body is provided with a Pall ring packing layer; and the guide plate is arranged in a spiral ascending or descending manner along the circumferential direction of the inner wall of the tank body. According to the utility model, the gas inlet and collecting pipe with the annular main pipe is arranged, so that multiple strands of gas can enter the mixing tank from different directions, and the contact opportunity among the gas is increased; by arranging the turbulent flow mechanism and the Pall ring packing layer, gas forms a complex flow field in the mixing tank, so that full and uniform mixing of multiple strands of inlet gas is realized, and the efficiency and the stability of gas-making reaction are improved.

Description

Technical Field

[0001] This utility model relates to a mixing device, and more particularly to a device for uniformly mixing multiple streams of gas in a gasifier. Background Technology

[0002] Currently, some gasifiers use simple pipe connections to mix multiple gas streams. This method merely combines pipes from different gas sources, lacking effective disturbance and mixing mechanisms within the pipes. Each gas stream often enters the gasifier furnace as a relatively independent stream, making sufficient diffusion and fusion difficult. This results in uneven gas distribution within the furnace, preventing the gasification reaction from proceeding in a homogeneous gaseous environment. For example, the concentration of a certain gas may be too high in some areas and too low in others, affecting the reaction process, reducing efficiency, and potentially leading to unstable product quality and significant compositional deviations. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a device with a reasonable design, high mixing efficiency, and uniform mixing of multiple gases in a gasifier, which addresses the shortcomings of the existing technology.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A device for uniformly mixing multiple streams of gas in a gasifier is characterized in that the device is located at the gas inlet of the gasifier and includes a mixing tank and an inlet manifold. The inlet manifold consists of a main annular pipe arranged circumferentially along the mixing tank and multiple branch pipes connected to the main annular pipe.

[0006] The mixing tank has a tank body, with an outlet at the top connected to the gasifier furnace, an inlet at the bottom connected to the annular main pipe, a flow-turbing mechanism at the bottom, and a Pall ring packing layer in the middle.

[0007] The turbulence-disrupting mechanism includes several guide plates arranged horizontally along the radial direction of the tank body, with the guide plates spiraling upwards or downwards along the inner wall of the tank body.

[0008] The technical problem to be solved by this utility model can also be achieved through the following technical solution: each branch pipe is equipped with a flow regulating valve for precisely controlling the intake air volume and a one-way valve for preventing gas backflow.

[0009] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the Pall ring packing layer includes a number of Pall rings and a bracket for placing the Pall rings. The bracket consists of a lower support plate, an upper pressure plate and a connecting rod connecting the upper pressure plate and the lower support plate. A ring of overlapping plates for supporting the lower support plate is fixed on the inner wall of the tank.

[0010] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the guide plate is arranged in a fan shape, and the radius of the fan-shaped guide plate is greater than or equal to the radius of the tank.

[0011] The technical problem to be solved by this utility model can also be achieved through the following technical solution: each branch pipe is provided with an air inlet pipe section and an air outlet pipe section connected to the tank body, and the annular main pipe is located between the air inlet pipe section and the air outlet pipe section, and both the air inlet pipe section and the air outlet pipe section are arranged along the circumference of the annular main pipe.

[0012] Compared with existing technologies, this invention, by incorporating an inlet gas collecting pipe with a ring-shaped main pipe, allows multiple gas streams to enter the mixing tank from different directions, increasing the contact opportunities between gases. Furthermore, by adding a flow-disrupting mechanism and a Pall ring packing layer, the gas flow direction is further disrupted, creating a complex flow field within the mixing tank. This achieves thorough and uniform mixing of multiple gas streams, improving the efficiency and stability of the gasification reaction. The overall structure of this invention is relatively simple, without complex mechanical parts, reducing manufacturing costs and maintenance difficulty. The design of the mixing tank and its components facilitates disassembly and cleaning, allowing for regular maintenance and extending the device's service life. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the device for uniformly mixing multiple streams of gas in a gasifier according to the present invention;

[0014] Figure 2 for Figure 1 Top view.

[0015] In the diagram: 1-tank body, 2-air inlet, 3-air outlet, 4-guide plate, 5-Pall ring packing layer, 6-ring main pipe, 7-branch pipe, 8-air outlet section. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0018] Reference Figure 1 and Figure 2 A device for uniformly mixing multiple streams of gas in a gasifier, the device being installed at the gas inlet of the gasifier, comprising a mixing tank and an inlet manifold, the inlet manifold consisting of an annular main pipe 6 arranged circumferentially along the mixing tank and multiple branch pipes 7 connected to the annular main pipe 6.

[0019] The mixing tank includes a tank body 1, with an outlet 3 at the top of the tank body 1 connected to the furnace of the gasifier, an inlet 2 at the bottom of the tank body 1 connected to the annular main pipe, a turbulence-inducing mechanism at the bottom of the tank body 1, and a Pall ring packing layer 5 in the middle of the tank body 1.

[0020] The turbulence-disrupting mechanism includes several guide plates 4 arranged horizontally along the radial direction of the tank body. The guide plates 4 are arranged in a spiral manner, rising or falling along the inner circumference of the tank body. The guide plates 4 are arranged in a fan shape, and the radius of the fan-shaped guide plates is greater than or equal to the radius of the tank body.

[0021] Each branch pipe 7 is equipped with a flow regulating valve for precise control of the intake air volume and a one-way valve for preventing gas backflow. Each branch pipe 7 has an intake pipe section and an outlet pipe section 8 connected to the tank body. The annular main pipe is located between the intake pipe section and the outlet pipe section. Both the intake pipe section and the outlet pipe section 8 are arranged circumferentially along the annular main pipe, allowing multiple streams of gas to enter the mixing tank from different directions, increasing the contact opportunities between the gases.

[0022] The Pall ring packing layer 5 includes several Pall rings and a bracket for placing the Pall rings. The bracket consists of a lower support plate, an upper pressure plate, and a connecting rod connecting the upper pressure plate and the lower support plate. A ring of overlapping plates for supporting the lower support plate is fixed on the inner wall of the tank, which facilitates installation, disassembly, and replacement.

[0023] Compared with the prior art, the advantages or positive effects of this utility model are as follows:

[0024] First, it achieves excellent mixing: the design of the annular main pipe and multiple branch pipes allows multiple gas streams to enter the mixing tank from different directions, increasing the contact opportunities between the gases. The placement of baffles and Pall ring packing further disrupts the gas flow direction, creating a complex flow field within the mixing tank. This ensures thorough and uniform mixing of the multiple gas streams, improving the efficiency and stability of the gasification reaction.

[0025] Second, precise flow control: The flow regulating valve installed on each branch pipe can precisely control the flow rate of each gas stream according to the requirements of the gasification process, ensuring that the proportion of different gases meets the reaction requirements and improving the quality of the product.

[0026] Third, preventing backflow: The one-way valve effectively prevents gas backflow, avoids mutual interference between different gas sources, and ensures the safe and reliable operation of the intake system.

[0027] Fourth, the structure is simple and easy to maintain: The overall structure of this device is relatively simple, with no complex mechanical parts, which reduces manufacturing costs and maintenance difficulty. The design of the mixing tank and other components facilitates disassembly and cleaning, allowing for regular maintenance and extending the service life of the device.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An apparatus for uniformly mixing multiple streams of gas in a gasifier, characterized in that, The device is located at the gas inlet of the gasifier and includes a mixing tank and an inlet manifold. The inlet manifold consists of a ring-shaped main pipe arranged around the circumference of the mixing tank and multiple branch pipes connected to the ring-shaped main pipe. The mixing tank has a tank body, with an outlet at the top connected to the gasifier furnace, an inlet at the bottom connected to the annular main pipe, a flow-turbation mechanism at the bottom, and a Pall ring packing layer in the middle. The turbulence-disrupting mechanism includes several guide plates arranged horizontally along the radial direction of the tank body, with the guide plates spiraling upwards or downwards along the inner wall of the tank body.

2. The device for uniform mixing of multiple gas streams in a gasification furnace according to claim 1, characterized in that, Each branch pipe is equipped with a flow regulating valve for precise control of the intake air volume and a one-way valve for preventing gas backflow.

3. The device for uniform mixing of multiple gas streams in a gasification furnace according to claim 1, characterized in that, The Pall ring packing layer includes several Pall rings and a bracket for placing the Pall rings. The bracket consists of a lower support plate, an upper pressure plate, and a connecting rod connecting the upper pressure plate and the lower support plate. A ring of overlapping plates for supporting the lower support plate is fixed on the inner wall of the tank.

4. The device for uniform mixing of multiple gas streams in a gasification furnace according to claim 1, characterized in that, The guide vane is arranged in a fan shape, and the radius of the fan-shaped guide vane is greater than or equal to the radius of the tank.

5. The device for uniform mixing of multiple gas streams in a gasification furnace according to claim 1, wherein, Each branch pipe is equipped with an inlet pipe section and an outlet pipe section connected to the tank body. The annular main pipe is located between the inlet pipe section and the outlet pipe section, and both the inlet pipe section and the outlet pipe section are arranged along the circumference of the annular main pipe.

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