Kidney-shaped fluidized reduction reactor

Abstract

The utility model discloses a kidney-shaped fluidized reduction reactor. The reactor comprises a reaction chamber, the shape of the reaction chamber is similar to a kidney-shaped cylinder, the reaction chamber is erected on a base, a metal breathable net is arranged at the bottom of the reaction chamber, a vertical reaction chamber partition plate is arranged in the reaction chamber, and the upper end and the two side ends of the reaction chamber partition plate are fixedly connected with the inner wall of the reaction chamber in a sealed mode. The bottom end of the reaction chamber partition plate is spaced from the metal breathable net by a certain distance, a first cavity and a second cavity with the bottoms communicated are formed in the two sides of the reaction chamber partition plate respectively, a bearing frame for bearing the metal breathable net is arranged at the bottom of the metal breathable net, an air chamber is arranged at the bottom of the bearing frame, and an air chamber partition plate is vertically arranged in the air chamber. The gas chamber partition plate corresponds to the reaction chamber partition plate in vertical position, a first gas chamber and a second gas chamber are respectively formed on two sides of the gas chamber partition plate, the first gas chamber is communicated with a first gas inlet hole, and the second gas chamber is communicated with a second gas inlet hole. The device avoids crusting and blocking, and is sufficient in reduction.

Description

Technical Field

[0001] The utility model relates to the technical field of fluidized reactors, in particular to a lumber-shaped fluidized reduction reactor. Background Art

[0002] The fluidized reduction reactor is a container where solid particles are evenly piled in the bottom with fluid flowing through it to form a bed. If the reducing fluid passes through from top to bottom, the particles do not move, and this is the fixed bed stage. If the reducing fluid passes through the bed from bottom to top, the situation is the same as the fixed bed at low flow rates. When the flow rate increases, the particles move and expand the bed. When the flow rate increases further, the particles will move away from each other and move in the fluid. The greater the flow rate, the more intense the activity, and the particles move in a single direction in the bed due to the gas pressure difference in the air chamber.

[0003] At present, the fluidized reduction reactor adopts a square cavity, and the fluid ejection device adopts a hood form. The side of the hood has evenly opened holes in a circle, and the reducing fluid is ejected horizontally from the opening to make the particles move. Due to the use of a square cavity, this method will make it difficult for particles with square angles to fluidize. If the particles do not move for a long time, the high temperature in the reactor will overheat the particles for a long time, forming a crust. The crust will become larger and larger over time, reducing the processing capacity of the reactor and seriously causing the reactor to be blocked. At the same time, the reducing fluid is ejected horizontally, which reduces the flow rate of the reducing fluid, weakens the activity of the particles, and increases the amount of reducing fluid. Utility Model Content

[0004] The utility model aims to provide a lumber-shaped fluidized reduction reactor which can avoid crusting and clogging in view of the shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a waist-shaped fluidized reduction reactor, comprising a reaction chamber, the shape of the reaction chamber is approximately a waist-shaped cylinder, the reaction chamber is mounted on a base, a metal air-permeable mesh is provided at the bottom of the reaction chamber, a vertical reaction chamber partition is provided inside the reaction chamber, the upper end and both side ends of the reaction chamber partition are sealed and fixedly connected to the inner wall of the reaction chamber, the bottom end of the reaction chamber partition is spaced a distance from the metal air-permeable mesh, and the two sides of the reaction chamber partition respectively form a first chamber and a second chamber connected at the bottom, a load-bearing frame for supporting the metal air-permeable mesh is provided at the bottom of the metal air-permeable mesh, an air chamber is provided at the bottom of the load-bearing frame, an air chamber is vertically provided inside the air chamber, the air chamber partition corresponds to the upper and lower positions of the air chamber partition, and the two sides of the air chamber partition respectively form a first air chamber and a second air chamber, the first air chamber is connected to a first air inlet, and the second air chamber is connected to a second air inlet.

[0006] Preferably, the metal breathable mesh is formed by pressing multiple layers of metal meshes, and the mesh holes of each layer of meshes are arranged in a staggered manner.

[0007] Preferably, the cross-sectional shapes of the metal air-permeable net, the load-bearing frame, and the air chamber are all oval-shaped. It should be further explained that, compared with the angle of the square, the shape characteristics of the oval-shaped shape and the law of fluid movement can be used to prevent the blockage of the crust during the reduction process, and at the same time make the reduction reaction more sufficient.

[0008] Preferably, a feed inlet is provided directly above the first chamber.

[0009] Preferably, a discharge port is provided above the side wall of the second chamber.

[0010] Preferably, the metal air-permeable mesh is perpendicular to and fixedly connected to the inner wall of the reaction chamber.

[0011] Preferably, the vertical distance between the reaction chamber partition and the metal air-permeable mesh is 200 mm-500 mm.

[0012] Preferably, the first air chamber corresponds to the first cavity in upper and lower positions, and the second air chamber corresponds to the second cavity in upper and lower positions.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The reactor is set to a waist-shaped structure to avoid the risk of crusting and clogging of the reactor.

[0015] 2. The reducing gas is sprayed out using a metal breathable mesh, and the airflow can be sprayed from bottom to top, which can increase the flow rate of the reducing gas and make the particles move more violently. At the same time, the metal breathable mesh has more holes than the air outlet of the hood, so the reducing gas can enter more evenly and the reducing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural schematic diagram of the load-bearing frame in the utility model.

[0018] Figure 3 It is a top view of the reaction chamber in the utility model.

[0019] Among them, 1-base, 201-first air chamber, 202-second air chamber, 211-first air inlet, 212-second air inlet, 22-air chamber partition, 23-load-bearing frame, 24-metal breathable mesh, 3-reaction chamber, 31-reaction chamber partition, 32-feed port, 33-discharge port, 34-first chamber, 35-second chamber. DETAILED DESCRIPTION

[0020] The present invention is further explained below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that these implementation methods are only used to illustrate the present invention and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art all fall within the scope defined by the claims attached to this application.

[0021] like Figures 1 to 3 The oval-shaped fluidized reduction reactor shown comprises a reaction chamber 3, which is shaped like an oval-shaped cylinder. The reaction chamber 3 is mounted on a base 1. A metal air-permeable mesh 24 is provided at the bottom of the reaction chamber 3. The metal air-permeable mesh 24 is vertical and welded to the inner wall of the reaction chamber 3. The metal air-permeable mesh 24 is pressed by multiple layers of metal mesh sheets. The mesh holes of each layer of mesh sheets are arranged in a staggered manner to prevent particles from entering the air chamber. A vertical reaction chamber partition 31 is provided inside the reaction chamber 3. The upper end and both side ends of the reaction chamber partition 31 are sealed and welded to the inner wall of the reaction chamber 3. The bottom end of the reaction chamber partition 31 is spaced 200 mm to 500 mm from the metal air-permeable mesh 24. A first chamber 34 and a second chamber 35 connected at the bottom are formed on both sides of the reaction chamber partition 31. A feed inlet 32 ​​is provided directly above the first chamber 34, and a feed inlet 32 ​​is provided above the side wall of the second chamber 35. There is a discharge port 33, and a feed port 32 is provided with a flange interface for easy connection. A load-bearing frame 23 supporting the metal breathable mesh 24 is installed at the bottom of the metal breathable mesh 24, and an air chamber is welded at the bottom of the load-bearing frame 23. An air chamber partition 22 is vertically welded inside the air chamber. The air chamber partition 22 corresponds to the upper and lower positions of the reaction chamber partition 31. The two sides of the air chamber partition 22 form a first air chamber 201 and a second air chamber 202 respectively. The first air chamber 201 is connected to a first air inlet 211, and the second air chamber 202 is connected to a second air inlet. The first air inlet 211 and the second air inlet 212 are both connected to the reducing gas pipeline. The first air chamber 201 corresponds to the upper and lower positions of the first chamber 34, and the second air chamber 202 corresponds to the upper and lower positions of the second chamber 35. The cross-sectional shapes of the metal breathable mesh 24, the load-bearing frame 23, and the air chamber are all oval.

[0022] The working process and principle of this embodiment are as follows: the base 1 is installed on the platform where the reactor is located, the feed port 32 is connected to the feed pipe through a flange, the discharge port 33 is welded to the discharge pipe, the first air inlet 211 and the second air inlet 212 are respectively connected to the two reducing gas pipelines, after the connection is completed, the heated granular material enters the first chamber 34 through the feed port 32, and when the granular material is spread on the metal air permeable mesh 24 to a certain thickness, the two reducing gas pipelines pass the reducing gas carbon monoxide and hydrogen through the first air inlet 211 to The second air inlet 212 enters the air chamber, the reducing gas flow rate entering the second chamber 35 is higher than the reducing gas flow rate of the first chamber 34, and the reducing gas flow rate is gradually increased. When the particles begin to suspend, a pressure difference is formed between the pressure in the first chamber 34 and the second chamber 35 due to the different reducing gas flow rates. The particles move from the feed end to the discharge end along the notch at the lower end of the reaction chamber partition 31, and are finally discharged from the discharge port 33 into the discharge pipe. A reduction reaction occurs in the particles when they begin to contact with the reducing gas and during the movement of the particles.

[0023] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A round-shaped fluidized reduction reactor, characterized in that: The invention comprises a reaction chamber, wherein the shape of the reaction chamber is approximately a waist-shaped cylinder, the reaction chamber is mounted on a base, a metal air-permeable mesh is provided at the bottom of the reaction chamber, a vertical reaction chamber partition is provided inside the reaction chamber, the upper end and both side ends of the reaction chamber partition are sealed and fixedly connected to the inner wall of the reaction chamber, the bottom end of the reaction chamber partition is spaced a distance from the metal air-permeable mesh, a first chamber and a second chamber connected at the bottom are respectively formed on both sides of the reaction chamber partition, a load-bearing frame supporting the metal air-permeable mesh is provided at the bottom of the metal air-permeable mesh, an air chamber is provided at the bottom of the load-bearing frame, an air chamber is vertically provided inside the air chamber, the air chamber partition corresponds to the upper and lower positions of the reaction chamber partition, a first air chamber and a second air chamber are respectively formed on both sides of the air chamber partition, the first air chamber is connected to a first air inlet, and the second air chamber is connected to a second air inlet.

2. The oval-shaped fluidized reduction reactor according to claim 1, characterized in that: The metal breathable net is formed by pressing multiple layers of metal mesh sheets, and the mesh holes of each layer of mesh sheets are arranged in a staggered manner.

3. The oval-shaped fluidized reduction reactor according to claim 1, characterized in that: The cross-sectional shapes of the metal air-permeable net, the load-bearing frame and the air chamber are all oval.

4. The oval-shaped fluidized reduction reactor according to claim 1, characterized in that: A feed inlet is provided directly above the first chamber.

5. The oval-shaped fluidized reduction reactor according to claim 1, characterized in that: A discharge port is provided above the side wall of the second chamber.

6. The oval-shaped fluidized reduction reactor according to claim 1, characterized in that: The metal air-permeable mesh is vertical to and fixedly connected to the inner wall of the reaction chamber.

7. The oval-shaped fluidized reduction reactor according to claim 1, characterized in that: The vertical distance between the reaction chamber partition and the metal air-permeable mesh is 200 mm to 500 mm.

8. The oval-shaped fluidized reduction reactor according to claim 1, characterized in that: The first air chamber corresponds to the first cavity in vertical position, and the second air chamber corresponds to the second cavity in vertical position.

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