A gas rapid mixing device for high temperature pyrolysis

Abstract

This utility model discloses a rapid gas mixing device for high-temperature pyrolysis, including a housing, an inlet pipe I, an inlet pipe II, an outlet pipe, a premixing chamber, a mixing chamber, and a temporary storage chamber. The housing is divided into a premixing chamber, a mixing chamber, and a temporary storage chamber by baffles I and II. Baffle I has two through slots, and baffle II has one through slot, limiting the cross-sectional area for gas flow. Inlet pipes I and II are fixedly connected to one end of the housing and communicate with the premixing chamber. Inlet pipe I is located at one end of the housing containing the premixing chamber, and inlet pipe II is located at the top of the premixing chamber. The outlet pipe is fixedly connected to the other end of the housing and communicates with the temporary storage chamber. A baffle box is located inside the mixing chamber and is fixedly connected inside the housing. The baffle box has a channel in its center, and a motor bracket is located in the channel. An exhaust fan is located on the motor bracket.

Description

Technical Field

[0001] This invention belongs to the field of gas mixing technology, and specifically relates to a rapid gas mixing device for high-temperature pyrolysis. Background Technology

[0002] In the process of refining animal fats from heat transfer oil, the heat transfer oil needs to be heated by burning fuel in a heat transfer oil boiler to provide a stable heat source for the refining pot. This process is accompanied by two main types of waste gas: First, a large amount of hot flue gas generated by the combustion of boiler fuel, which, if directly emitted, is not only a waste of energy but also causes thermal pollution to the local environment; Second, the oil refining evaporation waste gas formed by the evaporation of moisture and volatile substances in the oil in the high-temperature heat transfer oil pot, which not only emits a foul odor but also pollutes the environment if directly emitted.

[0003] A search revealed a gas mixing device with the existing technology announcement number CN223221291U. This device, by setting up a cleaning and mixing mechanism, can clean impurities on the filter plate while filtering the gas, and also increase the mixing area. This device mainly relies on two fixed guide plates to change the gas flow direction for mixing, but this method can only cause the gas flow to undergo simple turning and merging, and cannot disperse and mix the gas.

[0004] A search revealed a high-efficiency gas mixing device with prior art publication number CN 221906534 U. This device uses two sets of perforated plates to initially mix the gas, and during the rotation of the impeller, a drive mechanism drives the two sets of perforated plates to slide in opposite directions to further mix the gas. However, this device cannot control the gas flow rate, resulting in unstable impeller speed. At the same time, if the flow rate is too high, the gas will pass through the device quickly, affecting the mixing effect of the device.

[0005] Therefore, a rapid gas mixing device for high-temperature pyrolysis is needed to create a fast-in, slow-out flow field for the gas within the device, effectively extending the residence and turbulence time of the gas in the mixing chamber, thereby achieving thorough mixing. At the same time, rapid and uniform gas mixing can be achieved by changing the direction of the airflow. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rapid gas mixing device for high-temperature pyrolysis. This invention divides the internal chamber into a premixing chamber, a mixing chamber, and a temporary storage chamber through baffle I and baffle II. Combined with the initial disturbance mixing of the shield and the guiding mixing of the inertial mixing mechanism, a highly efficient multi-stage mixing process is formed, which significantly improves the uniformity and speed of gas mixing.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A rapid gas mixing device for high-temperature pyrolysis includes a housing, an inlet pipe I, an inlet pipe II, an outlet pipe, a premixing chamber, a mixing chamber, and a temporary storage chamber. The housing is divided into the premixing chamber, the mixing chamber, and the temporary storage chamber by baffles I and II. Baffle I has two through slots, and baffle II has one through slot, limiting the cross-sectional area for gas flow and increasing the mixing time of the gas entering through inlet pipes I and II. Inlet pipes I and II are fixedly connected to one end of the housing and communicate with the premixing chamber. Inlet pipe I is located at one end of the housing containing the premixing chamber, and inlet pipe II is located at the top of the premixing chamber. The outlet pipe is fixedly connected to the other end of the housing and communicates with the temporary storage chamber. A baffle box is located inside the mixing chamber and is fixedly connected inside the housing. The baffle box has a channel in its center, and a motor bracket is located in the channel. An exhaust fan is mounted on the motor bracket.

[0009] Preferably, the shield is located inside the premixing chamber and is fixedly connected to the box body. The shield has an opening on its side wall, which corresponds to the side wall of the box body. The gas entering through the air inlet pipe I flows around in the premixing chamber through the opening of the shield. The air inlet pipe II is located at the top of the premixing chamber, and the gas entering through the air inlet pipe II at the top of the premixing chamber is fully mixed with the gas entering through the air inlet pipe I.

[0010] Preferably, an inertial mixing mechanism is provided on one side of the baffle box. The mixed gas drawn by the exhaust fan enters the inertial mixing mechanism. The inertial mixing mechanism is provided with a flow guide hood, a flow guide cylinder, a flow guide groove, and a flow guide plate. One side of the flow guide groove is fixedly connected to the baffle box, and the other side is fixedly connected to the flow guide cylinder. The inner wall of the flow guide hood is fixedly connected to two sets of flow guide plates fixedly connected to the outside of the flow guide cylinder.

[0011] Preferably, the side wall of the enclosure is provided with several inspection doors, through which the interior of the enclosure can be inspected regularly.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] 1) The internal chamber is divided into a premixing chamber, a mixing chamber and a temporary storage chamber by baffle I and baffle II. Combined with the initial disturbance mixing of the shield and the flow guidance mixing of the inertial mixing mechanism, a highly efficient multi-stage mixing process is formed, which significantly improves the uniformity and speed of gas mixing.

[0014] 2) By controlling the number of channels on baffle I and baffle II, a fast-in, slow-out flow field is formed in the device, which effectively prolongs the residence and disturbance time of the gas in the mixing chamber, thereby achieving full mixing. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of a rapid gas mixing device for high-temperature pyrolysis according to the present invention.

[0016] Appendix Figure 2This is a schematic diagram of the internal structure of a rapid gas mixing device for high-temperature pyrolysis according to this utility model.

[0017] Appendix Figure 3 This is a schematic diagram of one side of the structure of the blocking box and the inertial mixing mechanism;

[0018] Appendix Figure 4 This is a schematic diagram of the other side of the barrier box and inertia mixing mechanism;

[0019] Appendix Figure 5 This is a cross-sectional view of the connection structure between the blocking box and the inertial mixing mechanism;

[0020] In the diagram: 1. Housing; 101. Inlet pipe I; 102. Inlet pipe II; 103. Outlet pipe; 104. Premixing chamber; 105. Mixing chamber; 106. Temporary storage chamber; 2. Inspection door;

[0021] 201. Motor bracket; 202. Exhaust fan; 203. Baffle box; 204. Inertial mixing mechanism; 2041. Drainage cover; 2042. Flow guide tube; 2043. Flow guide groove; 2044. Flow guide plate; 3. Through groove; 4. Shield cover; 5. Baffle I; 6. Baffle II. Detailed Implementation

[0022] To facilitate understanding by those skilled in the art, the following is a detailed explanation in conjunction with the appendix. Figure 1-5 The technical solution of this utility model will be further described in detail below.

[0023] A rapid gas mixing device for high-temperature pyrolysis includes a housing 1, an inlet pipe I 101, an inlet pipe II 102, an outlet pipe 103, a premixing chamber 104, a mixing chamber 105, and a temporary storage chamber 106. The housing 1 is divided into the premixing chamber 104, the mixing chamber 105, and the temporary storage chamber 106 by baffles I 5 and II 6. Baffles I 5 are provided with two through slots 3, and baffles II 6 are provided with one through slot 3, which limits the cross-sectional area for the flow of mixed gas, thereby increasing the mixing time of the gas entering through the inlet pipes I 101 and II 102. Intake pipe I 101 and intake pipe II 102 are fixedly connected to one end of the housing 1 and communicate with the premixing chamber 104. Intake pipe I 101 is located at one end of the housing where the premixing chamber 104 is located, and intake pipe II 102 is located at the top of the premixing chamber 104. Exhaust pipe 103 is fixedly connected to the other end of the housing 1 and communicates with the temporary storage chamber 106. Barrier box 203 is located inside the mixing chamber 105. Barrier box 203 is fixedly connected inside the housing 1. A channel is provided in the center of barrier box 203. A motor bracket 201 is provided in the channel. An exhaust fan 202 is provided on the motor bracket 201.

[0024] Furthermore, the shield 4 is located inside the premixing chamber 104 and is fixedly connected to the box body 1. The shield 4 has an opening on its side wall, which corresponds to the side wall of the box body 1. The gas entering through the air inlet pipe I 101 flows around in the premixing chamber 104 through the opening of the shield 4. The air inlet pipe II 102 is located at the top of the premixing chamber 104. The gas entering through the air inlet pipe II 102 at the top of the premixing chamber is fully mixed with the gas entering through the air inlet pipe I 101.

[0025] Furthermore, an inertial mixing mechanism 204 is provided on one side of the blocking box 203. The mixed gas guided by the exhaust fan 202 enters the inertial mixing mechanism 204. The inertial mixing mechanism 204 is provided with a flow guide hood 2041, a flow guide cylinder 2042, a flow guide groove 2043, and a flow guide plate 2044. One side of the flow guide groove 2043 is fixedly connected to the blocking box 203, and the other side is fixedly connected to the flow guide cylinder 2042. The inner wall of the flow guide hood 2041 is fixedly connected to two sets of flow guide plates 2044 fixedly connected to the outside of the flow guide cylinder 2042.

[0026] Furthermore, the side wall of the enclosure 1 is provided with several inspection doors 2, through which the interior of the enclosure can be inspected regularly.

[0027] A rapid gas mixing device for high-temperature pyrolysis operates as follows:

[0028] First, two external gas sources are opened to supply gas. When the two gas sources enter the premixing chamber 104 through inlet pipe I 101 and inlet pipe II 102 respectively, the gas entering through inlet pipe I 101 flows around inside the premixing chamber 104 through the opening of the shield 4. Inlet pipe II 102 is located at the top of the premixing chamber 104, and the gas entering through inlet pipe II 102 at the top of the premixing chamber is fully and initially mixed with the gas entering through inlet pipe I 101. Then the gas passes through the two sets of through slots 3 on the baffle I 5. The gas enters the mixing chamber 105, where the exhaust fan in the baffle box guides the mixed gas through the inertial mixing mechanism 204. The guide tube 2042 in the inertial mixing mechanism 204 impacts the guide hood 2041, and then the gas impacts the guide groove 2043 again along the interlayer between the guide tube 2042 and the guide hood 2041, thus achieving a second mixing process. The mixed gas is then discharged from the gas rapid mixing device through a set of through grooves 3 on the baffle II 6 and the gas outlet pipe 103.

[0029] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," "top," "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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 the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this invention, the connection methods are divided into fixed connection and movable connection. Fixed connection methods include, but are not limited to, welding and bolting; movable connection methods include, but are not limited to, sliding connection, rotating connection and threaded connection. The connection method to achieve the desired effect should be selected according to the application of the solution.

[0031] In summary, the power systems, including but not limited to exhaust fans and their respective transmission systems, are equipped with protective covers according to their actual installation locations to prevent wear or damage to the power and transmission systems caused by the external environment, thereby ensuring the normal operation of the power and transmission systems.

[0032] In summary, the electronic or electrical components, including but not limited to exhaust fans, are existing components that are custom-made or purchased. The electrical connections between these components are conventional circuit or electrical connections in the prior art, and the power for each component is provided by an external power source. Therefore, they are not within the scope of protection of this utility model.

[0033] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A rapid gas mixing device for high-temperature pyrolysis, comprising a housing, an inlet pipe I, an inlet pipe II, an outlet pipe, a premixing chamber, a mixing chamber, and a temporary storage chamber; characterized in that... The housing is divided into a premixing chamber, a mixing chamber, and a temporary storage chamber by baffles I and II. Baffle I has two through slots, and baffle II has one through slot, which limits the cross-sectional area for the flow of the mixed gas. Inlet pipes I and II are fixedly connected to one end of the housing and communicate with the premixing chamber. Inlet pipe I is located at one end of the housing where the premixing chamber is located, and inlet pipe II is located at the top of the premixing chamber. Outlet pipe is fixedly connected to the other end of the housing and communicates with the temporary storage chamber.

2. The rapid gas mixing device for high-temperature pyrolysis according to claim 1, characterized in that... The shield is located inside the premixing chamber and is fixedly connected to the box body. The shield has an opening on its side wall, which corresponds to the side wall of the box body. The gas entering through the air inlet pipe I flows around in the premixing chamber through the opening of the shield. The air inlet pipe II is located at the top of the premixing chamber. The gas entering through the air inlet pipe II at the top of the premixing chamber is fully mixed with the gas entering through the air inlet pipe I.

3. The rapid gas mixing device for high-temperature pyrolysis according to claim 1, characterized in that... The baffle box is located inside the mixing chamber and is fixedly connected to the inside of the chamber. The baffle box has a channel in the center, and a motor bracket is installed in the channel. An exhaust fan is installed on the motor bracket. An inertial mixing mechanism is installed on one side of the baffle box. The mixed gas guided by the exhaust fan enters the inertial mixing mechanism. The inertial mixing mechanism is equipped with a flow guide hood, a flow guide cylinder, a flow guide groove, and a flow guide plate. One side of the flow guide groove is fixedly connected to the baffle box, and the other side is fixedly connected to the flow guide cylinder. The inner wall of the flow guide hood is fixedly connected to two sets of flow guide plates fixedly connected to the outside of the flow guide cylinder.

4. A rapid gas mixing device for high-temperature pyrolysis according to claim 1, characterized in that... The side wall of the enclosure is equipped with several inspection doors.

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