CN211570120U - Hydrogenation tower for producing hydrogen peroxide - Google Patents
Hydrogenation tower for producing hydrogen peroxide Download PDFInfo
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- CN211570120U CN211570120U CN201922369563.9U CN201922369563U CN211570120U CN 211570120 U CN211570120 U CN 211570120U CN 201922369563 U CN201922369563 U CN 201922369563U CN 211570120 U CN211570120 U CN 211570120U
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Abstract
The utility model discloses a hydrogenation tower of production hydrogen peroxide, including hydrogenation tower body, the top fixedly connected with intake pipe and the blow-down pipe of hydrogenation tower body, the bottom fixedly connected with fluid-discharge tube of hydrogenation tower body, the side of hydrogenation tower body is close to top position fixedly connected with feed liquor pipe, and the inside fixed mounting of hydrogenation tower body has the gas-liquid distributor, and gas-liquid distributor and feed liquor pipe intercommunication, hydrogenation tower body distribute from last to down have porcelain ball layer, wire grid mechanism, palladium catalyst layer, wire grid mechanism. The utility model discloses the structure is ingenious, can stop palladium catalyst layer and leak to porcelain ball layer from the inside edge of hydrogenation tower body, causes catalyst and porcelain ball to produce the dust because of the different frictions of intensity, causes catalyst bed resistance to increase, prevents that the catalyst from producing because of wearing and tearing and consuming and influence production, prevents to lead to hydrogenation tower reaction unbalance, bed pressure differential grow, and the accessory substance increases.
Description
Technical Field
The utility model belongs to the technical field of the hydrogenation tower, concretely relates to hydrogenation tower of production hydrogen peroxide.
Background
The production process of hydrogen peroxide is mainly a palladium catalyst anthraquinone process, and the domestic production process of hydrogen peroxide by the palladium catalyst anthraquinone process comprises five procedures of hydrogenation, oxidation, extraction, purification and post-treatment.
The structure of the domestic original hydrogenation tower is as follows: the working liquid and hydrogen enter from the upper part of the hydrogenation tower, gas and liquid are uniformly distributed through a gas-liquid distributor, the liquid trickles to a catalyst layer in the tower, under the catalytic action of a palladium catalyst, 2-ethyl anthraquinone in the working liquid and the hydrogen undergo hydrogenation reaction under the catalytic action of the palladium catalyst to generate anthraquinone, the anthraquinone undergoes oxidation reaction to generate hydrogen peroxide, and the hydrogen peroxide is extracted by desalted water in an extraction tower to form a hydrogen peroxide product.
When the catalyst of hydrogenation tower is filled, for one deck ceramic ball one deck palladium catalyst then one deck ceramic ball bears down on the top, because ceramic ball and palladium catalyst intensity are different, can not direct contact, so need lay 14 mesh stainless steel silk screen between ceramic ball and palladium catalyst and keep apart, and the silk screen needs to be fastened with the clamping ring, makes silk screen edge and tower wall closely laminate, prevents that the palladium catalyst from leaking to the ceramic ball layer from the edge.
However, in the practical application process, because the tower and the clamping ring are not regularly round, a gap can be formed between the clamping ring and the tower wall, so that the palladium catalyst leaks to the ceramic ball layer in the production process, dust is generated by friction with the ceramic ball, the dust is brought to the next catalyst layer by the working solution, the catalyst can form bias flow and agglomeration, the reaction of the hydrogenation tower is unbalanced, the pressure difference of a bed layer is increased, and byproducts are increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydrogenation tower of production hydrogen peroxide to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: including hydrogenation tower body, the top fixedly connected with intake pipe and the blow-down pipe of hydrogenation tower body, the bottom fixedly connected with fluid-discharge tube of hydrogenation tower body, the side of hydrogenation tower body is close to top position fixedly connected with feed liquor pipe, the inside fixed mounting of hydrogenation tower body has the gas-liquid distributor, gas-liquid distributor and feed liquor pipe intercommunication, hydrogenation tower body distributes from last to having porcelain ball layer, wire grid mechanism, palladium catalyst layer, wire grid mechanism, gas-liquid distributor, reserve empty layer, porcelain ball layer, wire grid mechanism, palladium catalyst layer and wire grid mechanism, wire grid mechanism includes grid plate, four mesh silk screen and fourteen mesh silk screens, grid plate, four mesh silk screen and fourteen mesh silk screens are closely arranged from bottom to top.
Preferably, the height of the reserved empty layer is 300mm, the ceramic ball layer, the wire grid mechanism, the palladium catalyst layer, the wire grid mechanism and the gas-liquid distributor are one layer, the number of layers in the tower is two to three, and the reserved empty layer is positioned between the layers.
Preferably, the wire grid mechanism is fixed in the hydrogenation tower body through a support beam, the support beam is welded in the hydrogenation tower body, the bottom of a grid plate in the grid mechanism is fixedly connected with the support beam through a bolt, the four-mesh wire mesh is welded at the top end of the grid plate, and the fourteen-mesh wire mesh is welded at the top end of the four-mesh wire mesh.
Preferably, the periphery of the grid plate is embedded with the inner wall of the hydrogenation tower body through a buckle, and the periphery of the grid plate is sealed with the inner wall of the hydrogenation tower body through a soft tetrafluoro belt.
Preferably, the air inlet pipe, the emptying pipe, the liquid inlet pipe and the liquid discharge pipe are all provided with regulating valves.
Preferably, a plurality of solid addition pipes are installed on the outer wall of the hydrogenation column body.
Compared with the prior art, the beneficial effects of the utility model are that:
wire net grid mechanism is sealed with soft tetrafluoro area, the bolt is firm, need not to stack the porcelain ball, can increase hydrogenation tower effective use space 300mm height, can pack the catalyst more in the same volume hydrogenation tower and be used for improving the productivity, and effectual the catalyst that has prevented leaks down, cause the bed to hinder, influence production, stop palladium catalyst layer from the inside edge of hydrogenation tower body leaking to the porcelain ball layer, cause catalyst and porcelain ball to produce the dust because of the different frictions of intensity, cause catalyst bed resistance to increase, prevent that the catalyst from producing because of wearing and tearing and consuming and influence production, prevent to lead to the hydrogenation tower reaction unbalance, bed pressure differential grow, the accessory substance increases.
The utility model discloses the structure is ingenious, can stop palladium catalyst layer and leak to porcelain ball layer from the inside edge of hydrogenation tower body, causes catalyst and porcelain ball to produce the dust because of the different frictions of intensity, causes catalyst bed resistance to increase, prevents that the catalyst from producing because of wearing and tearing and consuming and influence production, prevents to lead to hydrogenation tower reaction unbalance, bed pressure differential grow, and the accessory substance increases.
Drawings
FIG. 1 is a main view cross-sectional view of the hydrogenation column body of the present invention;
FIG. 2 is a schematic structural view of the wire mesh grid mechanism of the present invention;
FIG. 3 is a top view of the wire mesh grid mechanism of the present invention;
FIG. 4 is a top view of the hydrogenation column of the present invention.
In the figure: 1. a hydrogenation column body; 2. an air inlet pipe; 3. a liquid inlet pipe; 4. a gas-liquid distributor; 5. A ceramic ball layer; 6. reserving an empty layer; 7. a palladium catalyst layer; 8. a wire mesh grid mechanism; 9. a solids addition tube; 10. a support beam; 11. four-mesh silk screen; 12. a grid plate; 13. a soft tetrafluoro belt; 14. fourteen-mesh wire mesh; 15. a liquid discharge pipe; 16. an emptying pipe; 17. a solids addition tube.
Detailed Description
The present invention will be further described with reference to the following examples.
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.
Referring to fig. 1-4, the present invention provides a technical solution of a hydrogenation tower for producing hydrogen peroxide: the hydrogenation tower comprises a hydrogenation tower body 1, wherein the top end of the hydrogenation tower body 1 is fixedly connected with an air inlet pipe 2 and an air release pipe 16, the bottom end of the hydrogenation tower body 1 is fixedly connected with a liquid discharge pipe 15, the side edge of the hydrogenation tower body 1 is fixedly connected with a liquid inlet pipe 3 near the top end, the interior of the hydrogenation tower body 1 is fixedly provided with a gas-liquid distributor 4, the gas-liquid distributor 4 is communicated with the liquid inlet pipe 3, the hydrogenation tower body 1 is distributed with a ceramic ball layer 5, a wire grid mechanism 8, a palladium catalyst layer 7, the wire grid mechanism 8, the gas-liquid distributor 4, a reserved hollow layer 6, the ceramic ball layer 5, the wire grid mechanism 8, the palladium catalyst layer 7 and the wire grid mechanism 8 from top to bottom, the wire grid mechanism 8 comprises a grid plate 12, a four-mesh wire screen 11 and a fourteen-mesh wire screen 14, the grid plate 12, the four-mesh wire screen 11 and the fourteen-mesh wire screen 14 are closely arranged, and the fillers such as ceramic balls at the lower part are eliminated, so that the use space of the hydrogenation tower is effectively increased.
Preferably, the height of the reserved hollow layer 6 is 300mm, the ceramic ball layer 5, the wire grid mechanism 8, the palladium catalyst layer 7, the wire grid mechanism 8 and the gas-liquid distributor 4 are one layer, the number of layers in the tower is two to three, the reserved hollow layer 6 is located between layers, and the reserved hollow layer 6 is used for preventing gas-liquid bias flow.
Preferably, the wire mesh grid mechanism 8 is fixed inside the hydrogenation tower body 1 through a support beam 10, the support beam 10 is welded inside the hydrogenation tower body 1, the bottom of a grid plate 12 in the wire mesh grid mechanism 8 is fixedly connected with the support beam 10 through a bolt, a fourteen-mesh wire mesh 11 is welded at the top end of the grid plate 12, and a fourteen-mesh wire mesh 14 is welded at the top end of the fourteen-mesh wire mesh 11.
Preferably, the periphery of grid plate 12 and the inner wall of hydrogenation tower body 1 are inlayed through the buckle, and seal through soft tetrafluoro belt 13 between the periphery of grid plate 12 and the inner wall of hydrogenation tower body 1, stop palladium catalyst layer 7 and leak to ceramic ball layer 5 from the inside edge of hydrogenation tower body 1, cause catalyst and ceramic ball because of the different friction of intensity and produce the dust, cause catalyst bed resistance to increase, prevent that the catalyst from producing because of wearing and tearing and consuming and influencing production, prevent to lead to hydrogenation tower reaction unbalance, bed pressure differential grow, the accessory substance increases.
Preferably, the air inlet pipe 2, the air release pipe 16, the liquid inlet pipe 3 and the liquid outlet pipe 15 are all provided with regulating valves.
Preferably, a plurality of solid addition pipes 17 are attached to the outer wall of the hydrogenation column body 1, and the ceramic ball layer 5 and the palladium catalyst layer 7 can be added to and replaced in the hydrogenation column body 1 through the solid addition pipes 17.
The utility model discloses a theory of operation and use flow: the silk net grating mechanism 8 is sealed with the soft tetrafluoro belt 13, the bolt is firm, ceramic balls do not need to be stacked, the effective use space of the hydrogenation tower can be increased by 300mm, catalysts can be filled in the hydrogenation tower with the same volume for improving the productivity, the catalysts are effectively prevented from leaking downwards, the bed resistance is caused, the production is influenced, the palladium catalyst layer 7 is prevented from leaking to the ceramic ball layer 5 from the inner edge of the hydrogenation tower body 1, the catalysts and the ceramic balls are rubbed to generate dust due to different strengths, the resistance of a catalyst bed layer is increased, the catalysts are prevented from being consumed due to abrasion and influencing the production, the reaction imbalance of the hydrogenation tower is prevented, the pressure difference of the bed layer is increased, and byproducts are increased.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A hydrogenation column for producing hydrogen peroxide, characterized by: including hydrogenation tower body (1), the top fixedly connected with intake pipe (2) and blow-down pipe (16) of hydrogenation tower body (1), bottom fixedly connected with fluid-discharge tube (15) of hydrogenation tower body (1), the side of hydrogenation tower body (1) is close to top position fixedly connected with feed liquor pipe (3), the inside fixed mounting of hydrogenation tower body (1) has gas-liquid distributor (4), gas-liquid distributor (4) and feed liquor pipe (3) intercommunication, hydrogenation tower body (1) from last to distributing down have porcelain ball layer (5), wire grid mechanism (8), palladium catalyst layer (7), wire grid mechanism (8), gas-liquid distributor (4), reserve sky layer (6), porcelain ball layer (5), wire grid mechanism (8), palladium catalyst layer (7) and wire grid mechanism (8), wire grid mechanism (8) are including grid board (12) grid, The four-mesh screen (11) and the fourteen-mesh screen (14), the grating plate (12), the four-mesh screen (11) and the fourteen-mesh screen (14) are closely arranged from bottom to top.
2. A hydrogenation column for the production of hydrogen peroxide according to claim 1, characterized in that: the height of reserving the empty layer (6) is 300mm, the porcelain ball layer (5), the wire grid mechanism (8), the palladium catalyst layer (7), the wire grid mechanism (8) and the gas-liquid distributor (4) are one layer, the number of layers in the tower is two to three, and the reserving empty layer (6) is positioned between layers.
3. A hydrogenation column for the production of hydrogen peroxide according to claim 1, characterized in that: the wire mesh grid mechanism (8) is fixed in the hydrogenation tower body (1) through a supporting beam (10), the supporting beam (10) is welded in the hydrogenation tower body (1), the bottom of a grid plate (12) in the wire mesh grid mechanism (8) is fixedly connected with the supporting beam (10) through a bolt, a four-mesh wire mesh (11) is welded at the top end of the grid plate (12), and a fourteen-mesh wire mesh (14) is welded at the top end of the four-mesh wire mesh (11).
4. A hydrogenation column for the production of hydrogen peroxide according to claim 1, characterized in that: the periphery of the grid plate (12) is embedded with the inner wall of the hydrogenation tower body (1) through a buckle, and the periphery of the grid plate (12) is sealed with the inner wall of the hydrogenation tower body (1) through a soft tetrafluoro belt (13).
5. A hydrogenation column for the production of hydrogen peroxide according to claim 1, characterized in that: and the air inlet pipe (2), the emptying pipe (16), the liquid inlet pipe (3) and the liquid discharge pipe (15) are all provided with regulating valves.
6. A hydrogenation column for the production of hydrogen peroxide according to claim 1, characterized in that: the outer wall of the hydrogenation tower body (1) is provided with a plurality of solid adding pipes (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922369563.9U CN211570120U (en) | 2019-12-26 | 2019-12-26 | Hydrogenation tower for producing hydrogen peroxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922369563.9U CN211570120U (en) | 2019-12-26 | 2019-12-26 | Hydrogenation tower for producing hydrogen peroxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211570120U true CN211570120U (en) | 2020-09-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922369563.9U Active CN211570120U (en) | 2019-12-26 | 2019-12-26 | Hydrogenation tower for producing hydrogen peroxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211570120U (en) |
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2019
- 2019-12-26 CN CN201922369563.9U patent/CN211570120U/en active Active
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