WO2022110627A1 - Hydrolysis reaction device and hydrolysis method for organic sulfur in blast furnace gas - Google Patents

Abstract

Disclosed are a hydrolysis reaction device and a hydrolysis method for organic sulfur in blast furnace gas. The device comprises a housing, the housing is internally provided with a catalyst partition plate group in an axial direction, the top surface of the catalyst partition plate group is tightly attached to the top surface of the housing, and an air inlet chamber is formed between the bottom surface of the catalyst partition plate group and the bottom surface of the housing; the partition plate group comprises an inner ring partition plate and an outer ring partition plate which are coaxially provided in a nested manner, a formed annular cavity is filled with a hydrolysis catalyst, and the partition plate group is fixedly provided with an annular bottom plate which seals the bottom of the cavity; and the inner ring partition plate encloses an exhaust passage, an air inlet passage is formed between the outer ring partition plate and the side wall of the housing, and the bottom of the housing is provided with an air inlet.

Description

A kind of hydrolysis reaction device and hydrolysis method of organic sulfur in blast furnace gas technical field

The application belongs to the technical field of blast furnace gas hydrolysis, and relates to a hydrolysis reaction device and a hydrolysis method of organic sulfur in blast furnace gas.

Background technique

Blast furnace gas is a combustible gas produced in the blast furnace ironmaking process. It can be used as fuel and is widely used in boilers, blast furnace hot blast stoves, steelmaking heating furnaces and other processes. The main components of blast furnace gas are: CO, CO ₂ , N ₂ and a small amount of hydrocarbons and sulfur-containing components. The total sulfur content in blast furnace gas is generally 150-300 mg/Nm ³ , of which organic sulfur accounts for 3/4 and inorganic sulfur accounts for 1/4. Inorganic sulfur can be easily removed from coal gas by alkaline washing. Organosulfur is stable in nature, which can cause serious corrosion of equipment and pipelines and pollute the atmospheric environment. It is the primary removal object in blast furnace gas desulfurization. Organosulfur can be directly absorbed and removed or indirectly converted and removed. At present, the main removal technology is the catalytic conversion of organic sulfur into H ₂ S and indirect removal. The conversion method has various technologies such as hydrogenation conversion, oxidative conversion, and hydrolysis conversion. Hydrogenation and oxidative conversion are mainly used for high-concentration organic sulfur conversion, which requires additional feed gas. The hydrolysis conversion has the advantages of not consuming the raw material gas, only consuming the water in the atmosphere, and less side reactions, so it has received great attention.

CN111729493A discloses a gas desulfurization system for blast furnace ironmaking, including a treatment box, a water tank is fixedly connected to the top of the treatment box, and a guide pipe is communicated between the water tank and the treatment tank, and the surface of the guide pipe is A solenoid valve is provided, the bottom of the solenoid valve is connected with a horizontal pipe, the bottom of the horizontal pipe is connected with a spray head, and both sides of the inner cavity of the treatment box are fixedly connected with fixed blocks, and the two fixed blocks are arranged between There is a filter mesh box, the bottom of the filter mesh box is provided with drainage holes, the filter mesh box is movably connected with the surface of the treatment box, and the surrounding area of the filter mesh box is fixedly connected with sealing gaskets. The device cannot remove organic sulfur, and the purification efficiency of inorganic sulfur is not high.

CN111748382A discloses an integrated equipment for fine desulfurization of blast furnace gas, which includes a kettle body, an air inlet is arranged on one side of the kettle body, an air outlet is arranged on the top of the kettle body, and a dehydrator and a filter plate are arranged upwards from the bottom of the kettle body in sequence. , Diaphragm, umbrella cap, pressure equalizing pipe, spray device, the transverse diaphragm divides the kettle body into two parts, and the elbow structure is evenly arranged in the circumferential direction of the kettle body, and the elbow structure is connected to the kettle The upper part of the diaphragm is provided with an umbrella cap, and a water tank is arranged between the umbrella cap and the kettle body. , the bottom of the kettle body is provided with a lower drain port.

CN111500325A discloses a blast furnace gas organic sulfur hydrolysis reaction device, which belongs to the technical field of blast furnace gas fine desulfurization. The device includes an intermediate flue, a baffle, an inlet elbow, an inlet reducing cone, an air distribution plate, a rectifying grid, a reactor, a hydrolysis catalyst, an internal support beam, an outlet reducing cone, an outlet elbow and a sonic blower The ash collector, the intermediate flue is connected with the inlet elbow of the device, the baffle is inside the elbow, the inlet elbow is connected with the inlet reducing cone, the air distribution plate is located in the inlet reducing cone, and the reactor is connected with the inlet reducing cone , the rectification grid is installed at the top of the reactor, the internal support beam is installed in the reactor, the catalyst is placed on the upper part of the internal support beam, the catalyst is placed in the reactor, the spacing of each layer of catalyst is equal, and the sonic sootblower is placed on the upper part of the catalyst to react The device is connected to the external pipe through the outlet reducing cone and elbow of the device.

The blast furnace gas desulfurization device in the current prior art is not perfect, the contact area between the catalyst and the blast furnace gas is small, the system pressure drop is large, and there is still a lot of room for improvement.

SUMMARY OF THE INVENTION

The purpose of this application is to provide a blast furnace gas organic sulfur hydrolysis reaction device and a hydrolysis method, the application provides a blast furnace gas organic sulfur hydrolysis reaction device, the blast furnace gas passes through the hydrolysis catalytic layer in the radial direction, and the more traditional filler Compared with the device, the hydrolysis reaction device provided by the present application increases the contact area between the blast furnace gas and the hydrolysis catalyst, and at the same time greatly reduces the pressure loss of the hydrolysis reaction device, and the hydrolysis catalyst is fully contacted with the gas, and the utilization rate is high; The catalyst layer has high space ratio, good adaptability to working conditions, high operating rate and low pressure drop, which can significantly improve the hydrolysis and conversion efficiency of blast furnace gas, and has considerable economic benefits.

For this purpose, the application adopts the following technical solutions:

In a first aspect, the present application provides a hydrolysis reaction device for organic sulfur in blast furnace gas. The hydrolysis reaction device includes a shell, and a catalyst separator group is arranged in the axial direction inside the shell. The top surface of the plate group is close to the top surface of the casing, and the cavity formed between the bottom surface of the catalyst separator plate group and the bottom surface of the casing is an intake chamber.

The catalyst separator group comprises an inner ring separator member and an outer ring separator member that are coaxially nested from the inside to the outside, and an annular cavity is formed between the inner ring separator member and the outer ring separator member. A hydrolysis catalyst is filled in the inside, an annular bottom plate is fixed on the bottom surface of the catalyst separator group, and the annular bottom plate seals the bottom of the annular cavity.

The cavity enclosed by the inner ring partition member is an exhaust passage, the cavity formed between the outer ring partition member and the side wall of the shell is an air inlet passage, and the air inlet chamber is connected to the inlet. The air passage is connected; the bottom of the casing is provided with an air inlet which is communicated with the air inlet chamber, the blast furnace gas enters the air inlet passage from the air inlet, and is discharged from the exhaust passage after passing through the hydrolysis catalyst layer.

The application provides a hydrolysis reaction device for organic sulfur in blast furnace gas. The blast furnace gas passes through the hydrolysis catalyst layer in the radial direction. Compared with the traditional packing device, the hydrolysis reaction device provided by the application improves the relationship between the blast furnace gas and the hydrolysis catalyst. At the same time, the pressure loss of the hydrolysis reaction device is greatly reduced, and the hydrolysis catalyst is fully in contact with the gas, and the utilization rate is high; the hydrolysis catalyst layer has a high space ratio, good adaptability to working conditions, high operating rate and pressure. The reduction is small, and the hydrolysis conversion efficiency of blast furnace gas can be significantly improved, which has considerable economic benefits.

As an optional technical solution of the present application, a flow guide assembly is provided at the bottom center of the catalyst separator group, and the flow guide assembly is used to guide the blast furnace gas entering the intake chamber into the intake passage.

Optionally, the diversion assembly is a diversion umbrella.

As an optional technical solution of the present application, the casing is a cylindrical cylinder.

Optionally, the bottom of the casing is provided with at least one air inlet.

Optionally, at least two feed ports are opened at the top of the casing where the annular cavity is located, and further optionally, four feed ports are opened.

Optionally, the feed ports are equally spaced along the circumference of the casing where the annular cavity is located.

Optionally, the bottom plate is communicated with at least one discharge pipeline, and the outlet end of the discharge pipeline passes through the air inlet chamber and extends out of the casing.

As an optional technical solution of the present application, the inner ring partition member is cylindrical or prismatic.

Optionally, the outer ring partition member is cylindrical or prismatic.

Optionally, the inner ring partition member and the outer ring partition member have the same shape.

Optionally, the inner ring partition member is surrounded by a perforated plate or a louver plate.

Optionally, the outer ring partition member is surrounded by a perforated plate or a louver plate.

Optionally, the inner ring partition member and the outer ring partition member are both surrounded by porous plates.

Optionally, the inner ring partition member and the outer ring partition member are both cylindrical structures surrounded by porous plates, and the inner ring partition member and the outer ring partition member are sequentially embedded from the inside to the outside. A set of catalyst separator plates formed in a concentric circle structure.

Optionally, the aperture ratio of the perforated plate is >80%, for example, it may be 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88% or 89%, but not only Limitation to the recited values applies equally to other non-recited values within the range of values.

Optionally, both the inner ring partition member and the outer ring partition member are surrounded by louvers.

As an optional technical solution of the present application, the inner ring partition member includes four inner ring louver panels, and the long sides of the four inner ring louver panels are connected in sequence to form a cuboid structure with open ends.

Optionally, the inner ring louver plate includes at least one inner ring plate member that is inclined and parallel to each other, the upper end of the inner ring plate member is inclined to the side of the exhaust passage, and the lower end of the inner ring plate member is inclined to the side of the exhaust passage. The annular cavity is inclined on one side.

Optionally, the included angle between the inner ring plate and the vertical plane is 12° to 43°, for example, 12°, 14°, 16°, 18°, 20°, 22°, 24°, 26° , 28°, 30°, 32°, 34°, 36°, 38°, 40° or 43°, but are not limited to the recited values, and other unrecited values within the numerical range are also applicable.

Optionally, the vertical distance between two adjacent inner ring plates is 90-310mm, for example, 90mm, 100mm, 120mm, 140mm, 160mm, 180mm, 200mm, 220mm, 240mm, 260mm, 290mm, 300mm or 310mm, but is not limited to the recited values, and other unrecited values within this range of values are also applicable.

Optionally, the horizontal plane where the upper end of the inner ring plate is located is denoted as x ₁ , the plane where the lower end of the adjacent upper-level inner ring partition plate is located is denoted as x ₂ , and the vertical distance between x ₁ and x ₂ is 35-70mm, for example, can be 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm or 70mm, but is not limited to the listed numerical values, and other unlisted numerical values within the numerical range are also applicable.

As an optional technical solution of the present application, the outer ring partition member includes four outer ring louver panels, and the long sides of the four outer ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends, so Said outer ring partition member and inner ring partition member are nested in sequence from outside to inside to form a catalyst partition group with a cross-section of a zigzag shape.

Optionally, the outer ring louver plate includes at least one outer ring plate member that is inclined and parallel to each other, the upper end of the outer ring plate member is inclined to the side of the air intake passage, and the lower end of the outer ring plate member is inclined to the side of the intake passage. The annular cavity is inclined on one side.

Optionally, the included angle between the outer ring plate and the vertical plane is 12° to 43°, such as 12°, 14°, 16°, 18°, 20°, 22°, 24°, 26° , 28°, 30°, 32°, 34°, 36°, 38°, 40° or 43°, but are not limited to the recited values, and other unrecited values within the numerical range are also applicable.

Optionally, the vertical distance between two adjacent outer ring plates is 90 to 310 mm, for example, 90 mm, 100 mm, 120 mm, 140 mm, 160 mm, 180 mm, 200 mm, 220 mm, 240 mm, 260 mm, 290 mm, 300 mm or 310mm, but is not limited to the recited values, and other unrecited values within this range of values are also applicable.

Optionally, the horizontal plane where the upper end of the outer ring plate is located is denoted as y ₁ , the plane where the lower end of the upper-level outer ring partition plate adjacent to it is located is denoted as y ₂ , and the vertical distance between y ₁ and y ₂ is 35-70mm, for example, can be 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm or 70mm, but is not limited to the listed numerical values, and other unlisted numerical values within the numerical range are also applicable.

As an optional technical solution of the present application, a guide cone is arranged in the exhaust passage along the axial direction, and the guide cone is used to lead the blast furnace gas entering the exhaust passage out of the casing.

Optionally, the guide cone includes two guide plates, one side of the two guide plates is butted and close to the top of the exhaust channel, and the other opposite sides are respectively pressed against the opposite sides of the bottom of the exhaust channel, and the two The sheet guide plate and the bottom surface of the exhaust channel form a triangular prism-shaped guide structure.

As an optional technical solution of the present application, the hydrolysis catalyst is one or a combination of at least two of spherical, cylindrical, cubic, cuboid or honeycomb shapes.

Second aspect, the application provides a kind of hydrolysis method of organic sulfur in blast furnace gas, adopts the hydrolysis device described in the first aspect to hydrolyze the organic sulfur in blast furnace gas; Described hydrolysis method comprises:

The annular cavity between the inner ring partition member and the outer ring partition member is filled with hydrolysis catalyst to form a fixed bed layer. Hydrolysis of sulfur, the blast furnace gas after hydrolysis is discharged from the shell through the exhaust channel.

As an optional technical solution of the present application, after the blast furnace gas enters the air inlet chamber from the air inlet, it is introduced into the air inlet passage under the guiding action of the air guiding assembly.

Optionally, the blast furnace gas entering the exhaust passage is led out of the casing along the outer surface of the guide cone under the action of the guide cone.

Compared with the prior art, the beneficial effects of the present application are:

The application provides a hydrolysis reaction device for organic sulfur in blast furnace gas. The blast furnace gas passes through the hydrolysis catalyst layer in the radial direction. Compared with the traditional packing device, the hydrolysis reaction device provided by the application improves the relationship between the blast furnace gas and the hydrolysis catalyst. At the same time, the pressure loss of the hydrolysis reaction device is greatly reduced, and the hydrolysis catalyst is fully in contact with the gas, and the utilization rate is high; the hydrolysis catalyst layer has a high space ratio, good adaptability to working conditions, high operating rate and pressure. The reduction is small, and the hydrolysis conversion efficiency of blast furnace gas can be significantly improved, which has considerable economic benefits.

Description of drawings

Fig. 1 is the structural representation of the hydrolysis reaction device provided by the embodiment 1 of the application;

Fig. 2 is the top view of the hydrolysis reaction device provided by the embodiment 1 of the application;

Fig. 3 is the structural representation of the hydrolysis reaction device provided by the embodiment 3-8 of this application;

Fig. 4 is the top view of the hydrolysis reaction device provided by the embodiment 3-8 of this application;

Among them, 1-air inlet; 2-intake chamber; 3-discharge pipeline; 4-guide assembly; 5-intake channel; 6-catalyst; 7-exhaust channel; 8-guide cone; 9- Feed port; 10-outer ring separator; 11-inner ring separator.

Detailed ways

It should be understood that in the description of this application, the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientations or positional relationships indicated by vertical, horizontal, top, bottom, inner, and outer are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the application. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of this application, unless stated otherwise, "plurality" means two or more.

It should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "arranged", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood through specific situations.

It should be understood by those skilled in the art that the present invention must include necessary pipelines, conventional valves and general pump equipment for realizing the complete process, but the above content does not belong to the main invention of the present invention, and those skilled in the art can The layout can be added by itself in the selection of technological process and equipment structure, and the present invention does not make special requirements and specific limitations on this.

The technical solutions of the present application will be further described below with reference to the accompanying drawings and through specific embodiments.

Example 1

This embodiment provides a hydrolysis reaction device for organic sulfur in blast furnace gas. As shown in FIG. 1 , the hydrolysis reaction device includes a shell, and a catalyst separator group is arranged inside the shell along the axial direction. The top surface is close to the top surface of the casing, and the cavity formed between the bottom surface of the catalyst baffle plate group and the bottom surface of the casing is the intake chamber 2 . The catalyst separator group includes an inner ring separator member 11 and an outer ring separator member 10 that are coaxially nested from the inside to the outside, and the annular cavity formed between the inner ring separator member 11 and the outer ring separator member 10 is filled with A spherical hydrolysis catalyst 6 is inserted, and an annular bottom plate is fixed on the bottom surface of the catalyst separator group, and the annular bottom plate seals the bottom of the annular cavity. The cavity enclosed by the inner ring partition member 11 is the exhaust channel 7 , the cavity formed between the outer ring partition member 10 and the side wall of the casing is the intake channel 5 , and the intake chamber 2 is communicated with the intake channel 5 . . The bottom of the shell is provided with an air inlet 1 which communicates with the air inlet chamber 2 . The blast furnace gas enters the air inlet passage 5 through the air inlet 1 , passes through the 6 layers of the hydrolysis catalyst and is discharged from the exhaust passage 7 .

The bottom center of the catalyst baffle plate group is provided with a guide assembly 4, which is used to guide the blast furnace gas entering the intake chamber 2 into the intake passage 5. Specifically, the guide assembly 4 is a guide umbrella.

As shown in FIG. 2 , the casing is a cylindrical cylinder, and an air inlet 1 is provided at the bottom of the casing. The top of the casing where the annular cavity is located is provided with four feed ports 9, and the four feed ports 9 are equally spaced on the circumference of the top surface of the casing where the annular cavity is located. The bottom plate is connected with two independent discharge pipelines 3, and the outlet end of the discharge pipeline 3 passes through the intake chamber 2 and extends out of the casing.

The inner ring partition member 11 and the outer ring partition member 10 are both cylindrical structures surrounded by porous plates, and the inner ring partition member 11 and the outer ring partition member 10 are sequentially nested from the inside to the outside to form a concentric structure. For the catalyst separator group, the porosity of the porous plate is 85%.

A guide cone 8 is arranged in the exhaust channel 7 along the axial direction. The guide cone 8 includes two guide plates. One of the two guide plates is butted and close to the top of the exhaust channel 7, and the other opposite sides are respectively pressed against the top of the exhaust channel 7. On the opposite sides of the bottom of the exhaust channel 7 , two guide plates and the bottom surface of the exhaust channel 7 form a triangular prism-shaped guide structure.

Example 2

This embodiment provides a hydrolysis reaction device for organic sulfur in blast furnace gas. The hydrolysis reaction device includes a shell, and a catalyst separator group is arranged inside the shell along the axial direction, and the top surface of the catalyst separator group is in close contact with the shell. On the top surface, the cavity formed between the bottom surface of the catalyst separator plate group and the bottom surface of the casing is the intake chamber 2 . The catalyst separator group includes an inner ring separator member 11 and an outer ring separator member 10 that are coaxially nested from the inside to the outside, and the annular cavity formed between the inner ring separator member 11 and the outer ring separator member 10 is filled with A cylindrical hydrolysis catalyst 6 is put into the catalyst separator group, and an annular bottom plate is fixed on the bottom surface of the catalyst separator group, and the annular bottom plate seals the bottom of the annular cavity. The cavity enclosed by the inner ring partition member 11 is the exhaust channel 7 , the cavity formed between the outer ring partition member 10 and the side wall of the casing is the intake channel 5 , and the intake chamber 2 is communicated with the intake channel 5 . . The bottom of the shell is provided with an air inlet 1 which communicates with the air inlet chamber 2 . The blast furnace gas enters the air inlet passage 5 through the air inlet 1 , passes through the 6 layers of the hydrolysis catalyst and is discharged from the exhaust passage 7 .

The bottom center of the catalyst baffle plate group is provided with a guide assembly 4, which is used to guide the blast furnace gas entering the intake chamber 2 into the intake passage 5. Specifically, the guide assembly 4 is a guide umbrella.

The casing is a cylindrical cylinder, and two air inlets 1 are symmetrically arranged at the bottom of the casing. The top of the casing where the annular cavity is located is provided with four feed ports 9, and the four feed ports 9 are equally spaced on the circumference of the top surface of the casing where the annular cavity is located. The bottom plate is connected with two independent discharge pipelines 3, and the outlet end of the discharge pipeline 3 passes through the intake chamber 2 and extends out of the casing.

The inner ring partition member 11 and the outer ring partition member 10 are both cuboid structures surrounded by four perforated plates, and the inner ring partition member 11 and the outer ring partition member 10 are sequentially nested from the inside to the outside to form a circular section. The catalyst separator group, the aperture ratio of the porous plate is 90%.

A guide cone 8 is arranged in the exhaust channel 7 along the axial direction. The guide cone 8 includes two guide plates. One of the two guide plates is butted and close to the top of the exhaust channel 7, and the other opposite sides are respectively pressed against the top of the exhaust channel 7. On the opposite sides of the bottom of the exhaust channel 7 , two guide plates and the bottom surface of the exhaust channel 7 form a triangular prism-shaped guide structure.

Example 3

This embodiment provides a hydrolysis reaction device for organic sulfur in blast furnace gas. As shown in FIG. 3 , the hydrolysis reaction device includes a shell, and a catalyst separator group is arranged inside the shell along the axial direction. The top surface is close to the top surface of the casing, and the cavity formed between the bottom surface of the catalyst baffle plate group and the bottom surface of the casing is the intake chamber 2 . The catalyst separator group includes an inner ring separator member 11 and an outer ring separator member 10 that are coaxially nested from the inside to the outside, and the annular cavity formed between the inner ring separator member 11 and the outer ring separator member 10 is filled with A cube-shaped hydrolysis catalyst 6 is inserted, and an annular base plate is fixed on the bottom surface of the catalyst separator group, and the annular base plate seals the bottom of the annular cavity. The cavity enclosed by the inner ring partition member 11 is the exhaust channel 7 , the cavity formed between the outer ring partition member 10 and the side wall of the casing is the intake channel 5 , and the intake chamber 2 is communicated with the intake channel 5 . . The bottom of the shell is provided with an air inlet 1 which communicates with the air inlet chamber 2 . The blast furnace gas enters the air inlet passage 5 through the air inlet 1 , passes through the 6 layers of the hydrolysis catalyst and is discharged from the exhaust passage 7 .

The bottom center of the catalyst baffle plate group is provided with a guide assembly 4, which is used to guide the blast furnace gas entering the intake chamber 2 into the intake passage 5. Specifically, the guide assembly 4 is a guide umbrella.

As shown in FIG. 4 , the casing is a cylindrical body, and two air inlets 1 are symmetrically arranged at the bottom of the casing. The top of the casing where the annular cavity is located is provided with four feed ports 9, and the four feed ports 9 are equally spaced on the circumference of the top surface of the casing where the annular cavity is located. The bottom plate is connected with two independent discharge pipelines 3, and the outlet end of the discharge pipeline 3 passes through the intake chamber 2 and extends out of the casing.

As shown in FIG. 3 and FIG. 4 , the inner ring partition member 11 includes four inner ring louver panels, and the long sides of the four inner ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends. The inner ring louver plate includes a plurality of inner ring plates arranged obliquely and parallel to each other. The included angle between the inner ring plate and the vertical plane is 12°, and the distance between two adjacent inner ring plates in the vertical direction is 90 mm. The horizontal plane where the upper end of the inner ring plate is located is denoted as x ₁ , the plane where the lower end of the adjacent upper inner ring partition is located is denoted as x ₂ , and the vertical distance between x ₁ and x ₂ is 35mm.

As shown in FIG. 3 and FIG. 4 , the outer ring partition member 10 includes four outer ring louver panels, and the long sides of the four outer ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends. The outer ring partition plate The member 10 and the inner ring separator member 11 are sequentially nested from the outside to the inside to form a catalyst separator group with a cross-section. The outer ring louver plate includes a plurality of outer ring plates arranged obliquely and parallel to each other. The angle between the outer ring plate and the vertical plane is 12°, the distance between two adjacent outer ring plates in the vertical direction is 90mm, and the horizontal plane where the upper end of the outer ring plate is located is recorded as y ₁ , and the adjacent The plane where the lower end of the upper outer ring separator is located is denoted as y ₂ , and the vertical distance between y ₁ and y ₂ is 35mm.

A guide cone 8 is arranged in the exhaust channel 7 along the axial direction. The guide cone 8 includes two guide plates. One of the two guide plates is butted and close to the top of the exhaust channel 7, and the other opposite sides are respectively pressed against the top of the exhaust channel 7. On the opposite sides of the bottom of the exhaust channel 7 , two guide plates and the bottom surface of the exhaust channel 7 form a triangular prism-shaped guide structure.

Example 4

This embodiment provides a hydrolysis reaction device for organic sulfur in blast furnace gas. As shown in FIG. 3 , the hydrolysis reaction device includes a shell, and a catalyst separator group is arranged inside the shell along the axial direction. The top surface is close to the top surface of the casing, and the cavity formed between the bottom surface of the catalyst baffle plate group and the bottom surface of the casing is the intake chamber 2 . The catalyst separator group includes an inner ring separator member 11 and an outer ring separator member 10 that are coaxially nested from the inside to the outside, and the annular cavity formed between the inner ring separator member 11 and the outer ring separator member 10 is filled with A cuboid-shaped hydrolysis catalyst 6 is inserted, and an annular bottom plate is fixed on the bottom surface of the catalyst separator group, and the annular bottom plate seals the bottom of the annular cavity. The cavity enclosed by the inner ring partition member 11 is the exhaust channel 7 , the cavity formed between the outer ring partition member 10 and the side wall of the casing is the intake channel 5 , and the intake chamber 2 is communicated with the intake channel 5 . . The bottom of the shell is provided with an air inlet 1 which communicates with the air inlet chamber 2 . The blast furnace gas enters the air inlet passage 5 through the air inlet 1 , passes through the 6 layers of the hydrolysis catalyst and is discharged from the exhaust passage 7 .

The bottom center of the catalyst baffle plate group is provided with a guide assembly 4, which is used to guide the blast furnace gas entering the intake chamber 2 into the intake passage 5. Specifically, the guide assembly 4 is a guide umbrella.

As shown in FIG. 4 , the casing is a cylindrical body, and two air inlets 1 are symmetrically arranged at the bottom of the casing. The top of the casing where the annular cavity is located is provided with four feed ports 9, and the four feed ports 9 are equally spaced on the circumference of the top surface of the casing where the annular cavity is located. The bottom plate is connected with two independent discharge pipelines 3, and the outlet end of the discharge pipeline 3 passes through the intake chamber 2 and extends out of the casing.

As shown in FIG. 3 and FIG. 4 , the inner ring partition member 11 includes four inner ring louver panels, and the long sides of the four inner ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends. The inner ring louver plate includes a plurality of inner ring plates arranged obliquely and parallel to each other. The angle between the inner ring plate and the vertical plane is 18°, and the distance between two adjacent inner ring plates in the vertical direction is 134 mm. The horizontal plane where the upper end of the inner ring plate is located is denoted as x ₁ , and the plane where the lower end of the adjacent upper-level inner ring partition is located is denoted as x ₂ , and the vertical distance between x ₁ and x ₂ is 42mm.

As shown in FIG. 3 and FIG. 4 , the outer ring partition member 10 includes four outer ring louver panels, and the long sides of the four outer ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends. The outer ring partition plate The member 10 and the inner ring separator member 11 are sequentially nested from the outside to the inside to form a catalyst separator group with a cross-section. The outer ring louver plate includes a plurality of outer ring plates arranged obliquely and parallel to each other. The angle between the outer ring plate and the vertical plane is 18°, the distance between two adjacent outer ring plates in the vertical direction is 134 mm, and the horizontal plane where the upper end of the outer ring plate is located is denoted as y ₁ , and the adjacent The plane where the lower end of the upper outer ring separator is located is denoted as y ₂ , and the vertical distance between y ₁ and y ₂ is 42mm.

A guide cone 8 is arranged in the exhaust channel 7 along the axial direction. The guide cone 8 includes two guide plates. One of the two guide plates is butted and close to the top of the exhaust channel 7, and the other opposite sides are respectively pressed against the top of the exhaust channel 7. On the opposite sides of the bottom of the exhaust channel 7 , two guide plates and the bottom surface of the exhaust channel 7 form a triangular prism-shaped guide structure.

Example 5

This embodiment provides a hydrolysis reaction device for organic sulfur in blast furnace gas. As shown in FIG. 3 , the hydrolysis reaction device includes a shell, and a catalyst separator group is arranged inside the shell along the axial direction. The top surface is close to the top surface of the casing, and the cavity formed between the bottom surface of the catalyst baffle plate group and the bottom surface of the casing is the intake chamber 2 . The catalyst separator group includes an inner ring separator member 11 and an outer ring separator member 10 that are coaxially nested from the inside to the outside, and the annular cavity formed between the inner ring separator member 11 and the outer ring separator member 10 is filled with The honeycomb hydrolysis catalyst 6 is put into the catalyst separator group, and an annular bottom plate is fixed on the bottom surface of the catalyst separator group, and the annular bottom plate seals the bottom of the annular cavity. The cavity enclosed by the inner ring partition member 11 is the exhaust channel 7 , the cavity formed between the outer ring partition member 10 and the side wall of the casing is the intake channel 5 , and the intake chamber 2 is communicated with the intake channel 5 . . The bottom of the shell is provided with an air inlet 1 which communicates with the air inlet chamber 2 . The blast furnace gas enters the air inlet passage 5 through the air inlet 1 , passes through the 6 layers of the hydrolysis catalyst and is discharged from the exhaust passage 7 .

A guide assembly 4 is arranged at the bottom center of the catalyst baffle plate group, and the guide assembly 4 is used to guide the blast furnace gas entering the intake chamber 2 into the intake passage 5. Specifically, the guide assembly 4 is a guide umbrella.

As shown in FIG. 4 , the casing is a cylindrical body, and two air inlets 1 are symmetrically arranged at the bottom of the casing. The top of the casing where the annular cavity is located is provided with four feed ports 9, and the four feed ports 9 are equally spaced on the circumference of the top surface of the casing where the annular cavity is located. The bottom plate is connected with three independent discharge pipelines 3, and the outlet end of the discharge pipelines 3 passes through the intake chamber 2 and extends out of the casing.

As shown in FIG. 3 and FIG. 4 , the inner ring partition member 11 includes four inner ring louver panels, and the long sides of the four inner ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends. The inner ring louver plate includes a plurality of inner ring plates arranged obliquely and parallel to each other. The included angle between the inner ring plate and the vertical plane is 24°, and the distance between two adjacent inner ring plates in the vertical direction is 178 mm. The horizontal plane where the upper end of the inner ring plate is located is denoted as x ₁ , and the plane where the lower end of the adjacent upper-level inner ring partition is located is denoted as x ₂ , and the vertical distance between x ₁ and x ₂ is 49mm.

As shown in FIG. 3 and FIG. 4 , the outer ring partition member 10 includes four outer ring louver panels, and the long sides of the four outer ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends. The outer ring partition plate The member 10 and the inner ring separator member 11 are sequentially nested from the outside to the inside to form a catalyst separator group with a cross-section. The outer ring louver plate includes a plurality of outer ring plates arranged obliquely and parallel to each other. The angle between the outer ring plate and the vertical plane is 24°, the distance between two adjacent outer ring plates in the vertical direction is 178mm, the horizontal plane where the upper end of the outer ring plate is located is denoted as y ₁ , and the adjacent The plane where the lower end of the upper outer ring separator is located is denoted as y ₂ , and the vertical distance between y ₁ and y ₂ is 49mm.

A guide cone 8 is arranged in the exhaust channel 7 along the axial direction. The guide cone 8 includes two guide plates. One of the two guide plates is butted and close to the top of the exhaust channel 7, and the other opposite sides are respectively pressed against the top of the exhaust channel 7. On the opposite sides of the bottom of the exhaust channel 7 , two guide plates and the bottom surface of the exhaust channel 7 form a triangular prism-shaped guide structure.

Example 6

This embodiment provides a hydrolysis reaction device for organic sulfur in blast furnace gas. As shown in FIG. 3 , the hydrolysis reaction device includes a shell, and a catalyst separator group is arranged inside the shell along the axial direction. The top surface is close to the top surface of the casing, and the cavity formed between the bottom surface of the catalyst baffle plate group and the bottom surface of the casing is the intake chamber 2 . The catalyst separator group includes an inner ring separator member 11 and an outer ring separator member 10 that are coaxially nested from the inside to the outside, and the annular cavity formed between the inner ring separator member 11 and the outer ring separator member 10 is filled with A spherical hydrolysis catalyst 6 is inserted, and an annular bottom plate is fixed on the bottom surface of the catalyst separator group, and the annular bottom plate seals the bottom of the annular cavity. The cavity enclosed by the inner ring partition member 11 is the exhaust channel 7 , the cavity formed between the outer ring partition member 10 and the side wall of the casing is the intake channel 5 , and the intake chamber 2 is communicated with the intake channel 5 . . The bottom of the shell is provided with an air inlet 1 which communicates with the air inlet chamber 2 . The blast furnace gas enters the air inlet passage 5 through the air inlet 1 , passes through the 6 layers of the hydrolysis catalyst and is discharged from the exhaust passage 7 .

The bottom center of the catalyst baffle plate group is provided with a guide assembly 4, which is used to guide the blast furnace gas entering the intake chamber 2 into the intake passage 5. Specifically, the guide assembly 4 is a guide umbrella.

As shown in FIG. 4 , the casing is a cylindrical body, and two air inlets 1 are symmetrically arranged at the bottom of the casing. The top of the casing where the annular cavity is located is provided with four feed ports 9, and the four feed ports 9 are equally spaced on the circumference of the top surface of the casing where the annular cavity is located. The bottom plate is connected with three independent discharge pipelines 3, and the outlet end of the discharge pipelines 3 passes through the intake chamber 2 and extends out of the casing.

As shown in FIG. 3 and FIG. 4 , the inner ring partition member 11 includes four inner ring louver panels, and the long sides of the four inner ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends. The inner ring louver plate includes a plurality of inner ring plates arranged obliquely and parallel to each other. The included angle between the inner ring plate and the vertical plane is 30°, and the distance between two adjacent inner ring plates in the vertical direction is 222 mm. The horizontal plane where the upper end of the inner ring plate is located is denoted as x ₁ , the plane where the lower end of the adjacent upper inner ring partition is located is denoted as x ₂ , and the vertical distance between x ₁ and x ₂ is 56mm.

As shown in FIG. 3 and FIG. 4 , the outer ring partition member 10 includes four outer ring louver panels, and the long sides of the four outer ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends. The outer ring partition plate The member 10 and the inner ring separator member 11 are sequentially nested from the outside to the inside to form a catalyst separator group with a cross-section. The outer ring louver plate includes a plurality of outer ring plates arranged obliquely and parallel to each other. The angle between the outer ring plate and the vertical plane is 30°, the distance between two adjacent outer ring plates in the vertical direction is 222mm, and the horizontal plane where the upper end of the outer ring plate is located is recorded as y ₁ , and the adjacent The plane where the lower end of the upper outer ring separator is located is denoted as y ₂ , and the vertical distance between y ₁ and y ₂ is 56mm.

A guide cone 8 is arranged in the exhaust channel 7 along the axial direction. The guide cone 8 includes two guide plates. One of the two guide plates is butted and close to the top of the exhaust channel 7, and the other opposite sides are respectively pressed against the top of the exhaust channel 7. On the opposite sides of the bottom of the exhaust channel 7 , two guide plates and the bottom surface of the exhaust channel 7 form a triangular prism-shaped guide structure.

Example 7

This embodiment provides a hydrolysis reaction device for organic sulfur in blast furnace gas. As shown in FIG. 3 , the hydrolysis reaction device includes a shell, and a catalyst separator group is arranged inside the shell along the axial direction. The top surface is close to the top surface of the casing, and the cavity formed between the bottom surface of the catalyst baffle plate group and the bottom surface of the casing is the intake chamber 2 . The catalyst separator group includes an inner ring separator member 11 and an outer ring separator member 10 that are coaxially nested from the inside to the outside, and the annular cavity formed between the inner ring separator member 11 and the outer ring separator member 10 is filled with A cylindrical hydrolysis catalyst 6 is put into the catalyst separator group, and an annular bottom plate is fixed on the bottom surface of the catalyst separator group, and the annular bottom plate seals the bottom of the annular cavity. The cavity enclosed by the inner ring partition member 11 is the exhaust channel 7 , the cavity formed between the outer ring partition member 10 and the side wall of the casing is the intake channel 5 , and the intake chamber 2 is communicated with the intake channel 5 . . The bottom of the shell is provided with an air inlet 1 which communicates with the air inlet chamber 2 . The blast furnace gas enters the air inlet passage 5 through the air inlet 1 , passes through the 6 layers of the hydrolysis catalyst and is discharged from the exhaust passage 7 .

The bottom center of the catalyst baffle plate group is provided with a guide assembly 4, which is used to guide the blast furnace gas entering the intake chamber 2 into the intake passage 5. Specifically, the guide assembly 4 is a guide umbrella.

As shown in FIG. 4 , the casing is a cylindrical body, and two air inlets 1 are symmetrically arranged at the bottom of the casing. The top of the casing where the annular cavity is located is provided with four feed ports 9, and the four feed ports 9 are equally spaced on the circumference of the top surface of the casing where the annular cavity is located. The bottom plate is connected with four independent discharge pipelines 3, and the outlet end of the discharge pipelines 3 passes through the intake chamber 2 and extends out of the casing.

As shown in FIG. 3 and FIG. 4 , the inner ring partition member 11 includes four inner ring louver panels, and the long sides of the four inner ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends. The inner ring louver plate includes a plurality of inner ring plates arranged obliquely and parallel to each other. The included angle between the inner ring plate and the vertical plane is 36°, and the distance between two adjacent inner ring plates in the vertical direction is 266 mm. The horizontal plane where the upper end of the inner ring plate is located is denoted as x ₁ , the plane where the lower end of the adjacent upper inner ring partition is located is denoted as x ₂ , and the vertical distance between x ₁ and x ₂ is 63mm.

As shown in FIG. 3 and FIG. 4 , the outer ring partition member 10 includes four outer ring louver panels, and the long sides of the four outer ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends. The outer ring partition plate The member 10 and the inner ring separator member 11 are sequentially nested from the outside to the inside to form a catalyst separator group with a cross-section. The outer ring louver plate includes a plurality of outer ring plates arranged obliquely and parallel to each other. The angle between the outer ring plate and the vertical plane is 36°, the distance between two adjacent outer ring plates in the vertical direction is 266 mm, and the horizontal plane where the upper end of the outer ring plate is located is recorded as y ₁ , and the adjacent The plane where the lower end of the upper outer ring separator is located is denoted as y ₂ , and the vertical distance between y ₁ and y ₂ is 63mm.

A guide cone 8 is arranged in the exhaust channel 7 along the axial direction. The guide cone 8 includes two guide plates. One of the two guide plates is butted and close to the top of the exhaust channel 7, and the other opposite sides are respectively pressed against the top of the exhaust channel 7. On the opposite sides of the bottom of the exhaust channel 7 , two guide plates and the bottom surface of the exhaust channel 7 form a triangular prism-shaped guide structure.

Example 8

This embodiment provides a hydrolysis reaction device for organic sulfur in blast furnace gas. As shown in FIG. 3 , the hydrolysis reaction device includes a shell, and a catalyst separator group is arranged inside the shell along the axial direction. The top surface is close to the top surface of the casing, and the cavity formed between the bottom surface of the catalyst baffle plate group and the bottom surface of the casing is the intake chamber 2 . The catalyst separator group includes an inner ring separator member 11 and an outer ring separator member 10 that are coaxially nested from the inside to the outside, and the annular cavity formed between the inner ring separator member 11 and the outer ring separator member 10 is filled with A cube-shaped hydrolysis catalyst 6 is inserted, and an annular base plate is fixed on the bottom surface of the catalyst separator group, and the annular base plate seals the bottom of the annular cavity. The cavity enclosed by the inner ring partition member 11 is the exhaust channel 7 , the cavity formed between the outer ring partition member 10 and the side wall of the casing is the intake channel 5 , and the intake chamber 2 is communicated with the intake channel 5 . . The bottom of the shell is provided with an air inlet 1 which communicates with the air inlet chamber 2 . The blast furnace gas enters the air inlet passage 5 through the air inlet 1 , passes through the 6 layers of the hydrolysis catalyst and is discharged from the exhaust passage 7 .

The bottom center of the catalyst baffle plate group is provided with a guide assembly 4, which is used to guide the blast furnace gas entering the intake chamber 2 into the intake passage 5. Specifically, the guide assembly 4 is a guide umbrella.

As shown in FIG. 4 , the casing is a cylindrical body, and two air inlets 1 are symmetrically arranged at the bottom of the casing. The top of the casing where the annular cavity is located is provided with four feed ports 9, and the four feed ports 9 are equally spaced on the circumference of the top surface of the casing where the annular cavity is located. The bottom plate is connected with four independent discharge pipelines 3, and the outlet end of the discharge pipelines 3 passes through the intake chamber 2 and extends out of the casing.

As shown in FIG. 3 and FIG. 4 , the inner ring partition member 11 includes four inner ring louver panels, and the long sides of the four inner ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends. The inner ring louver plate includes a plurality of inner ring plates arranged obliquely and parallel to each other. The included angle between the inner ring plate and the vertical plane is 43°, and the distance between two adjacent inner ring plates in the vertical direction is 310 mm. The horizontal plane where the upper end of the inner ring plate is located is denoted as x ₁ , and the plane where the lower end of the adjacent upper-level inner ring partition is located is denoted as x ₂ , and the vertical distance between x ₁ and x ₂ is 70mm.

As shown in FIG. 3 and FIG. 4 , the outer ring partition member 10 includes four outer ring louver panels, and the long sides of the four outer ring louver panels are connected in sequence to form a rectangular parallelepiped structure with open ends. The outer ring partition plate The member 10 and the inner ring separator member 11 are sequentially nested from the outside to the inside to form a catalyst separator group with a cross-section. The outer ring louver plate includes a plurality of outer ring plates arranged obliquely and parallel to each other. The angle between the outer ring plate and the vertical plane is 12°, the distance between two adjacent outer ring plates in the vertical direction is 90mm, and the horizontal plane where the upper end of the outer ring plate is located is recorded as y ₁ , and the adjacent The plane where the lower end of the upper outer ring separator is located is denoted as y ₂ , and the vertical distance between y ₁ and y ₂ is 35mm.

A guide cone 8 is arranged in the exhaust channel 7 along the axial direction. The guide cone 8 includes two guide plates. One of the two guide plates is butted and close to the top of the exhaust channel 7, and the other opposite sides are respectively pressed against the top of the exhaust channel 7. On the opposite sides of the bottom of the exhaust channel 7 , two guide plates and the bottom surface of the exhaust channel 7 form a triangular prism-shaped guide structure.

Application example

The organic sulfur in the blast furnace gas was hydrolyzed by the hydrolysis reaction device provided in Example 1, and the content of each component in the blast furnace gas treated was such that the COS concentration was 150 mg/Nm ³ , the H ₂ S concentration was 50 mg/Nm ³ , and the CO concentration was 150 mg/Nm 3 . is 22%, the CO ₂ concentration is 18%, the O ₂ concentration is 0.4%, and the temperature is 100 ° C. The hydrolysis process specifically includes:

The annular cavity between the inner ring partition member 11 and the outer ring partition member 10 is filled with the hydrolysis catalyst 6 to form a fixed bed; Under the action of diversion, it is introduced into the intake channel 5; the hydrolysis of organic sulfur is carried out through the fixed bed layer, and the hydrolyzed blast furnace gas enters the exhaust channel 7, and is led out along the outer surface of the diversion cone 8 under the action of the diversion cone 8 case.

The hydrolysis rate of organic sulfur in blast furnace gas was 99.5%.

The applicant declares that the above descriptions are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, but is defined by the claims.

Claims (12)

1. A hydrolysis reaction device for organic sulfur in blast furnace gas, comprising a shell, a catalyst separator group is arranged in the axial direction inside the shell, the top surface of the catalyst separator group is close to the top surface of the shell, and the The cavity formed between the bottom surface of the catalyst separator group and the bottom surface of the shell is the intake chamber;

   The catalyst separator group comprises an inner ring separator member and an outer ring separator member that are coaxially nested from the inside to the outside, and an annular cavity is formed between the inner ring separator member and the outer ring separator member. A hydrolysis catalyst is filled in the interior, an annular base plate is fixed on the bottom surface of the catalyst separator group, and the annular base plate seals the bottom of the annular cavity;

   The cavity enclosed by the inner ring partition member is an exhaust passage, the cavity formed between the outer ring partition member and the side wall of the shell is an air inlet passage, and the air inlet chamber is connected to the inlet. The air passage is connected; the bottom of the casing is provided with an air inlet which is communicated with the air inlet chamber, the blast furnace gas enters the air inlet passage from the air inlet, and is discharged from the exhaust passage after passing through the hydrolysis catalyst layer.
2. The hydrolysis reaction device according to claim 1, wherein the inner ring partition member is surrounded by a perforated plate or a louver plate.
3. The hydrolysis reaction device according to claim 1 or 2, wherein the outer ring partition member is surrounded by a perforated plate or a louver plate.
4. The hydrolysis reaction device according to any one of claims 1-3, wherein a flow guide assembly is provided at the bottom center of the catalyst separator group, and the flow guide assembly is used for the blast furnace entering the air inlet chamber. Gas drainage into the intake channel;

   Optionally, the diversion assembly is a diversion umbrella.
5. The hydrolysis reaction device according to any one of claims 1-4, wherein the casing is a cylindrical cylinder;

   Optionally, the bottom of the casing is provided with at least one air inlet;

   Optionally, the top of the shell where the annular cavity is located is provided with at least two feed ports, optionally four feed ports;

   Optionally, the feed ports are equally spaced along the circumference of the casing where the annular cavity is located;

   Optionally, the bottom plate is communicated with at least one discharge pipeline, and the outlet end of the discharge pipeline passes through the air inlet chamber and extends out of the casing.
6. The hydrolysis reaction device according to any one of claims 1-5, wherein the inner ring partition member is cylindrical or prismatic;

   Optionally, the outer ring partition member is cylindrical or prismatic;

   Optionally, the inner ring partition member and the outer ring partition member have the same shape;

   Optionally, the inner ring partition member and the outer ring partition member are both surrounded by porous plates;

   Optionally, the inner ring partition member and the outer ring partition member are both cylindrical structures surrounded by porous plates, and the inner ring partition member and the outer ring partition member are sequentially embedded from the inside to the outside. A set of catalyst separator plates forming a concentric structure;

   Optionally, the porosity of the porous plate is >80%;

   Optionally, both the inner ring partition member and the outer ring partition member are surrounded by louvers.
7. The hydrolysis reaction device according to any one of claims 1-6, wherein the inner ring partition member comprises four inner ring louver panels, and the long sides of the four inner ring louver panels are butted in turn to form two Cuboid structure with open ends;

   Optionally, the inner ring louver plate includes at least one inner ring plate member that is inclined and parallel to each other, the upper end of the inner ring plate member is inclined to the side of the exhaust passage, and the lower end of the inner ring plate member is inclined to the side of the exhaust passage. One side of the annular cavity is inclined;

   Optionally, the included angle between the inner ring plate and the vertical plane is 12° to 43°;

   Optionally, the distance between two adjacent inner ring plates in the vertical direction is 90-310 mm;

   Optionally, the horizontal plane where the upper end of the inner ring plate is located is denoted as x ₁ , the plane where the lower end of the adjacent upper-level inner ring partition plate is located is denoted as x ₂ , and the vertical distance between x ₁ and x ₂ is 35～70mm.
8. The hydrolysis reaction device according to any one of claims 1-7, wherein the outer ring partition member comprises four outer ring louver plates, and the long sides of the four outer ring louver plates are butted in turn to form two ends an open cuboid structure, the outer ring partition member and the inner ring partition member are sequentially nested from the outside to the inside to form a cross-section of the catalyst separator group;

   Optionally, the outer ring louver plate includes at least one outer ring plate member that is inclined and parallel to each other, the upper end of the outer ring plate member is inclined toward the side of the air inlet passage, and the lower end of the outer ring plate member is inclined toward the side of the air intake passage. One side of the annular cavity is inclined;

   Optionally, the included angle between the outer ring plate and the vertical plane is 12° to 43°;

   Optionally, the distance between two adjacent outer ring plates in the vertical direction is 90-310 mm;

   Optionally, the horizontal plane where the upper end of the outer ring plate is located is denoted as y ₁ , the plane where the lower end of the upper-level outer ring partition plate adjacent to it is located is denoted as y ₂ , and the vertical distance between y ₁ and y ₂ is 35～70mm.
9. The hydrolysis reaction device according to any one of claims 1-8, wherein a guide cone is arranged in the exhaust passage along the axial direction, and the guide cone is used to dispel the blast furnace gas entering the exhaust passage. lead out the shell;

   Optionally, the guide cone includes two guide plates, one side of the two guide plates is butted against and close to the top of the exhaust channel, and the other opposite sides are respectively pressed against the opposite sides of the bottom of the exhaust channel. The sheet guide plate and the bottom surface of the exhaust channel form a triangular prism-shaped guide structure.
10. The hydrolysis reaction device according to any one of claims 1-9, wherein the hydrolysis catalyst is one or a combination of at least two of spherical, cylindrical, cubic, cuboid or honeycomb shapes.
11. A method for hydrolyzing organic sulfur in blast furnace gas, wherein the hydrolysis device according to any one of claims 1-10 is used to hydrolyze the organic sulfur in blast furnace gas; the hydrolysis method comprises:

    The annular cavity between the inner ring partition member and the outer ring partition member is filled with hydrolysis catalyst to form a fixed bed layer. Hydrolysis of sulfur, the blast furnace gas after hydrolysis is discharged from the shell through the exhaust channel.
12. The hydrolysis method according to claim 11, wherein after the blast furnace gas enters the air inlet chamber from the air inlet, it is introduced into the air inlet passage under the guiding action of the air guiding assembly;

    Optionally, the blast furnace gas entering the exhaust passage is led out of the casing along the outer surface of the guide cone under the action of the guide cone.

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