CN204324909U - The prussic acid reactor of built-in mixing tank - Google Patents
The prussic acid reactor of built-in mixing tank Download PDFInfo
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- CN204324909U CN204324909U CN201420431249.3U CN201420431249U CN204324909U CN 204324909 U CN204324909 U CN 204324909U CN 201420431249 U CN201420431249 U CN 201420431249U CN 204324909 U CN204324909 U CN 204324909U
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Abstract
The utility model discloses a kind of prussic acid reactor of built-in mixing tank, comprise reactor body, the two ends of described reactor body are respectively equipped with gas inlet and pneumatic outlet, catalyzer is provided with in described reactor body, interchanger is provided with between described catalyzer and described pneumatic outlet, mixing tank is provided with, the filler that described mixing tank comprises the back up pad at two ends and is filled between two pieces of described back up pads between described catalyzer and described gas inlet; Described back up pad is provided with ventilating pit in array and is fixedly mounted in described reactor body.By arranging mixing tank between catalyzer and gas inlet, utilize the filler be filled in mixing tank, the reactant gases of prussic acid (Sweet natural gas, ammonia and air) can be made to mix full and uniform in mixing tank, then the reactant gases after mixing is passed into catalyst reaction prepare prussic acid; Therefore, prussic acid reactor of the present utility model can meet the requirement of abundant hybrid reaction gas.
Description
Technical field
The utility model belongs to the preparing technical field of prussic acid, is specifically related to a kind of prussic acid reactor of built-in mixing tank.
Background technology
Existing commercial synthesis prussic acid mainly adopts iS-One method to produce, and prussic acid reactor is the core apparatus in the prussic acid technological process of production.The principle that iS-One method produces prussic acid is: the reaction gas mixtures of methane or the Sweet natural gas containing methane, ammonia and oxygen is passed through catalyst gauze in the reactor, and transforms at the temperature of about 1000 DEG C.Wherein, oxygen generally uses with the form of air or oxygen-rich air, and catalyzer generally adopts platinum-rhodium alloy or platinum-rhodium-palldium alloy.In the process preparing prussic acid, reaction gas mixtures needs to mix.Existing iS-One is produced in the production system of prussic acid, and mixing tank is generally arranged on outside the entrance of prussic acid reactor, passes in reactor again react by methane, ammonia and oxygen after mixing in a mixer.Although such hydrocyanic acid production system can meet preparation requirement, the defect that floor space is large can be caused.
In addition, because temperature is very high, and in reaction gas mixtures, there is inflammable and explosive prussic acid, methane, ammonia, therefore, in existing prussic acid production unit, generally establish independent spark arrester in the outside of prussic acid reactor, although this spark arrester can play the object stoping propagation of flame to a certain extent, but, because spark arrester is arranged on outside reactor, flame can spread in reactor, causes unstripped gas ignition to explode, not only increase the back-fire relief difficulty of spark arrester, but also safety performance and the work-ing life of reactor can be reduced.
Summary of the invention
In view of this, the purpose of this utility model is the prussic acid reactor providing a kind of built-in mixing tank, can meet the well-mixed requirement of reactant gases.
For achieving the above object, the utility model provides following technical scheme:
A kind of prussic acid reactor of built-in mixing tank, comprise reactor body, the two ends of described reactor body are respectively equipped with gas inlet and pneumatic outlet, catalyzer is provided with in described reactor body, interchanger is provided with between described catalyzer and described pneumatic outlet, mixing tank is provided with, the filler that described mixing tank comprises the back up pad at two ends and is filled between two pieces of described back up pads between described catalyzer and described gas inlet; Described back up pad is provided with ventilating pit in array and is fixedly mounted in described reactor body.
Further, described filler comprises at least one deck packing layer, is filled with porcelain ring filler or metallic stuffing in described packing layer.
Further, be provided with ceramic cover plate between described mixing tank and described catalyzer, described ceramic cover plate is covered on described catalyzer, and described ceramic cover plate is provided with the perforate of passing for priming bar.
Further, the porcelain ring sparger making gas uniform by interchanger is provided with between described catalyzer and described interchanger.
Further, the axis of described gas inlet is vertical with the end face of described mixing tank inlet end; Or the axis of described gas inlet is parallel with the end face of described mixing tank inlet end, and the inwall of described gas inlet and described reactor body is tangent.
Further, spark arrester is provided with between described mixing tank and described catalyzer.
Further, described spark arrester is metal mesh type spark arrester, and described metal mesh type spark arrester comprises at least one stacked Stainless Steel Wire Mesh be combined, and described Stainless Steel Wire Mesh is provided with mesh in array.
Further, described metal mesh type spark arrester comprises 1-10 layer Stainless Steel Wire Mesh, and the size of described mesh is 16-300 order.
Further, described spark arrester is ripple type spark arrester, and described ripple type spark arrester comprises at least one deck ripple type flame retardant bed, and described in every one deck, the wave height of ripple type flame retardant bed is 0.3-0.6mm, and the thickness of ripple type flame retardant bed is 60-90mm.
Further, the inwall of corresponding with described spark arrester and catalyzer described reactor body is provided with the thermofin adopting heat-stable material to make.
The beneficial effects of the utility model are:
The prussic acid reactor of the built-in mixing tank of the utility model, by arranging mixing tank between catalyzer and gas inlet, utilize the filler be filled in mixing tank, the reactant gases of prussic acid (Sweet natural gas, ammonia and air) can be made to mix full and uniform in mixing tank, then the reactant gases after mixing is passed into catalyst reaction prepare prussic acid; Therefore, prussic acid reactor of the present utility model can meet the requirement of abundant hybrid reaction gas, and compared to the existing prussic acid production equipment be arranged on by mixing tank outside reactor, can also reduce floor space.
By arranging ceramic cover plate between mixing tank and catalyzer, on the one hand can hybrid reaction gas further, on the other hand, reactant gases also can be made to enter catalyst reaction equably.
By arranging spark arrester between catalyzer and mixing tank, even if when there is burning in reaction gas mixtures, flame also can be limited between spark arrester and catalyzer by spark arrester, can effectively prevent flame from playing a reversed role and spread the unstripped gas ignition blast caused, improve safety performance and the work-ing life of reactor; Reaction gas mixtures, can be dispersed by spark arrester refuge floor, reduces radial air flow speed difference, improves reaction effect; In addition, spark arrester is set by square on a catalyst, can stops that the impurity in reaction gas mixtures and equipment pipe takes on catalyzer, avoid poisoning of catalyst, and then can stabilizing catalyst activity, improve catalyst life, ensure the long-period stable operation of production system.
Accompanying drawing explanation
In order to make the purpose of this utility model, technical scheme and beneficial effect clearly, the utility model provides following accompanying drawing to be described:
Fig. 1 is the structural representation of prussic acid reactor first embodiment of the built-in mixing tank of the utility model;
Fig. 2 is the structural representation of prussic acid reactor second embodiment of the built-in mixing tank of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, and to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
first embodiment
As shown in Figure 1, be the structural representation of prussic acid reactor first embodiment of the built-in mixing tank of the utility model.The prussic acid reactor of the built-in mixing tank of the present embodiment, comprise reactor body 1, the two ends of reactor body 1 are respectively equipped with gas inlet 2 and pneumatic outlet 3, catalyzer 4 is provided with in reactor body 1, interchanger 5 is provided with between catalyzer 4 and pneumatic outlet 3, mixing tank 6 is provided with, the filler 8 that mixing tank 6 comprises the back up pad 7 at two ends and is filled between two pieces of back up pads 7 between catalyzer 4 and gas inlet 2; Back up pad 7 is provided with ventilating pit in array and is fixedly mounted in reactor body 1.Filler 8 comprises at least one deck packing layer, be filled with structured packing in packing layer, structured packing is porcelain ring filler or metallic stuffing, and the filler 8 of the present embodiment comprises two-layer packing layer, all be filled with porcelain ring filler in two-layer packing layer, the mixing requirement of reactant gases can be met.
The prussic acid reactor of the built-in mixing tank of the present embodiment, by arranging mixing tank 6 between catalyzer 4 and gas inlet 2, utilize the filler 8 be filled in mixing tank 6, the reactant gases of prussic acid (Sweet natural gas, ammonia and air) can be made to mix in mixing tank 6 full and uniform, then the reactant gases after mixing be passed into catalyzer 4 reaction and prepare prussic acid; Therefore, the prussic acid reactor of the present embodiment can meet the requirement of abundant hybrid reaction gas, and compared to the existing prussic acid production equipment be arranged on by mixing tank outside reactor, can also reduce floor space.
Further, be provided with ceramic cover plate 9 between mixing tank 6 and catalyzer 4, ceramic cover plate 9 is covered on catalyzer 4, and ceramic cover plate 9 is provided with the perforate of passing for priming bar 10.By arranging ceramic cover plate 9 between mixing tank 6 and catalyzer 4, on the one hand can hybrid reaction gas further, on the other hand, reactant gases also can be made to enter catalyzer 4 equably and to react.
Further, between catalyzer 4 and interchanger 5, be provided with porcelain ring sparger 11, gas uniform can be made by interchanger 5.
Further, the axis of gas inlet 2 is vertical with the end face of mixing tank 6 inlet end, and the gas inlet 2 of the present embodiment is arranged on the top of reactor body 1, and mixing tank 6 is arranged on immediately below gas inlet 2.Spark arrester 12 is provided with between the mixing tank 6 of the present embodiment and catalyzer 4.Concrete, the reactor body 1 of the present embodiment comprises kettle 1a, and the two ends of kettle 1a are respectively equipped with upper cover 1b and lower cover 1c, and gas inlet 2 is arranged on the top of upper cover 1b, pneumatic outlet 3 is arranged on lower cover 1c, and the dead in line of the axis of gas inlet 2 and kettle 1a.The spark arrester of the present embodiment is metal mesh type spark arrester, and metal mesh type spark arrester comprises at least one stacked Stainless Steel Wire Mesh be combined, and Stainless Steel Wire Mesh is provided with mesh in array.When the size of mesh is 16-300 order, metal mesh type spark arrester can be set to comprise 1-10 layer Stainless Steel Wire Mesh, can reach enough Fire resistances; When the size of mesh is 80-200 order, metal mesh type spark arrester can be set to comprise 3-8 layer Stainless Steel Wire Mesh.The metal mesh type spark arrester of the present embodiment is provided with the 5 layers of Stainless Steel Wire Mesh be superimposed together, and the mesh size that stainless steel metal is arranged on the net is 150 orders, can meet service requirements.Distance between metal mesh type spark arrester and catalyzer 4 is greater than 100mm, and be preferably at least 150mm, the distance between the metal mesh type spark arrester of the present embodiment and catalyzer 4 is 180mm.Preferably, the inwall of the reactor body 1 corresponding with spark arrester 12 and catalyzer 4 is provided with the thermofin 13 adopting heat-stable material to make, and prevents reactor body 1 from damaging.
By arranging spark arrester 12 between catalyzer 4 and mixing tank 6, even if when there is burning in reaction gas mixtures, flame also can be limited between spark arrester 12 and catalyzer 4 by spark arrester, can effectively prevent flame from playing a reversed role and spread the unstripped gas ignition blast caused, improve safety performance and the work-ing life of reactor; Reaction gas mixtures, can be dispersed by after spark arrester, reduces radial air flow speed difference, improves reaction effect; In addition, by arranging spark arrester 12 above catalyzer 4, can stop that the impurity in reaction gas mixtures and equipment pipe takes on catalyzer 4, avoid catalyzer 4 poisoning, and then can rugged catalyst 4 active, improve catalyzer 4 life-span, ensure the long-period stable operation of production system.
second embodiment
As shown in Figure 2, be the structural representation of prussic acid reactor second embodiment of the built-in mixing tank of the utility model.The prussic acid reactor of the built-in mixing tank of the present embodiment, comprise reactor body 1, the two ends of reactor body 1 are respectively equipped with gas inlet 2 and pneumatic outlet 3, catalyzer 4 is provided with in reactor body 1, interchanger 5 is provided with between catalyzer 4 and pneumatic outlet 3, mixing tank 6 is provided with, the filler 8 that mixing tank 6 comprises the back up pad 7 at two ends and is filled between two pieces of back up pads 7 between catalyzer 4 and gas inlet 2; Back up pad 7 is provided with ventilating pit in array and is fixedly mounted in reactor body 1.Filler 8 comprises at least one deck packing layer, structured packing is filled with in packing layer, structured packing is porcelain ring filler or metallic stuffing, the filler 8 of the present embodiment comprises three layers of packing layer, be filled with porcelain ring filler in the packing layer of the superiors, in undermost packing layer, be filled with porcelain ring filler, be positioned at middle packing layer and be filled with metallic stuffing, the height of three layers of packing layer is arranged as required, can meet the mixing requirement of reactant gases.
The axis of the gas inlet 2 of the present embodiment is parallel with the end face of mixing tank 5 inlet end, and gas inlet 2 is tangent with the inwall of reactor body 1, is provided with spark arrester 12 between mixing tank 6 and catalyzer 4.Concrete, the reactor body 1 of the present embodiment comprises kettle 1a, and the two ends of kettle 1a are respectively equipped with upper cover 1b and lower cover 1c, and gas inlet 2 is arranged on upper cover 1b, and pneumatic outlet 3 is arranged on lower cover 1c, and gas inlet 2 is tangent with the periphery of upper cover 1b.By being set to the inwall of reactor body 1 tangent by gas inlet 2, after reactant gases enters and forms the preliminary mixing of turbulent flow after reactor body 1, then enter mixing tank 6 equably and mix, mixed effect is better.
The spark arrester 12 of the present embodiment is ripple type spark arrester, ripple type spark arrester comprises at least one deck ripple type flame retardant bed, the wave height of every one deck ripple type flame retardant bed is 0.3-0.6mm, and the thickness of ripple type flame retardant bed is 60-90mm, and the distance between ripple type spark arrester and catalyzer 4 is greater than 30mm.The ripple type spark arrester of the present embodiment comprises two-layer ripple type flame retardant bed, and the wave height of every one deck ripple type flame retardant bed is 0.5mm, and the thickness of ripple type flame retardant bed is 75mm, and the distance between ripple type spark arrester and catalyzer 4 is 50mm.
Spark arrester also can adopt other to meet the spark arrester type preventing propagation of flame in prussic acid preparation process, and its principle is suitable, is not repeated.
Other structures of the present embodiment are identical with the first embodiment, tire out no longer one by one and state.
The above embodiment is only for absolutely proving the preferred embodiment that the utility model is lifted, and protection domain of the present utility model is not limited thereto.The equivalent alternative or conversion that those skilled in the art do on the utility model basis, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (10)
1. the prussic acid reactor of a built-in mixing tank, comprise reactor body, the two ends of described reactor body are respectively equipped with gas inlet and pneumatic outlet, catalyzer is provided with in described reactor body, interchanger is provided with between described catalyzer and described pneumatic outlet, it is characterized in that: between described catalyzer and described gas inlet, be provided with mixing tank, the filler that described mixing tank comprises the back up pad at two ends and is filled between two pieces of described back up pads; Described back up pad is provided with ventilating pit in array and is fixedly mounted in described reactor body.
2. the prussic acid reactor of built-in mixing tank according to claim 1, is characterized in that: described filler comprises at least one deck packing layer, is filled with porcelain ring filler or metallic stuffing in described packing layer.
3. the prussic acid reactor of built-in mixing tank according to claim 1, it is characterized in that: between described mixing tank and described catalyzer, be provided with ceramic cover plate, described ceramic cover plate is covered on described catalyzer, and described ceramic cover plate is provided with the perforate of passing for priming bar.
4. the prussic acid reactor of built-in mixing tank according to claim 1, is characterized in that: be provided with the porcelain ring sparger making gas uniform by interchanger between described catalyzer and described interchanger.
5. the prussic acid reactor of built-in mixing tank according to any one of claim 1-4, is characterized in that: the axis of described gas inlet is vertical with the end face of described mixing tank inlet end; Or the axis of described gas inlet is parallel with the end face of described mixing tank inlet end, and the inwall of described gas inlet and described reactor body is tangent.
6. the prussic acid reactor of built-in mixing tank according to claim 5, is characterized in that: be provided with spark arrester between described mixing tank and described catalyzer.
7. the prussic acid reactor of built-in mixing tank according to claim 6, it is characterized in that: described spark arrester is metal mesh type spark arrester, described metal mesh type spark arrester comprises at least one stacked Stainless Steel Wire Mesh be combined, and described Stainless Steel Wire Mesh is provided with mesh in array.
8. the prussic acid reactor of built-in mixing tank according to claim 7, it is characterized in that: described metal mesh type spark arrester comprises 1-10 layer Stainless Steel Wire Mesh, and the size of described mesh is 16-300 order.
9. the prussic acid reactor of built-in mixing tank according to claim 6, it is characterized in that: described spark arrester is ripple type spark arrester, described ripple type spark arrester comprises at least one deck ripple type flame retardant bed, described in every one deck, the wave height of ripple type flame retardant bed is 0.3-0.6mm, and the thickness of ripple type flame retardant bed is 60-90mm.
10. the prussic acid reactor of built-in mixing tank according to claim 6, is characterized in that: the inwall of the described reactor body corresponding with described spark arrester and catalyzer is provided with the thermofin adopting heat-stable material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201420431249.3U CN204324909U (en) | 2014-08-01 | 2014-08-01 | The prussic acid reactor of built-in mixing tank |
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| CN201420431249.3U CN204324909U (en) | 2014-08-01 | 2014-08-01 | The prussic acid reactor of built-in mixing tank |
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| CN204324909U true CN204324909U (en) | 2015-05-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113267076A (en) * | 2021-06-04 | 2021-08-17 | 四川能投建工集团设计研究院有限公司 | Hydrocyanic acid oxidation reactor and tube plate cooling structure thereof |
| CN115371047A (en) * | 2021-05-19 | 2022-11-22 | 武汉氢阳能源有限公司 | Novel anti-backfire hydrogen catalytic combustion reactor |
-
2014
- 2014-08-01 CN CN201420431249.3U patent/CN204324909U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115371047A (en) * | 2021-05-19 | 2022-11-22 | 武汉氢阳能源有限公司 | Novel anti-backfire hydrogen catalytic combustion reactor |
| CN113267076A (en) * | 2021-06-04 | 2021-08-17 | 四川能投建工集团设计研究院有限公司 | Hydrocyanic acid oxidation reactor and tube plate cooling structure thereof |
| CN113267076B (en) * | 2021-06-04 | 2022-08-23 | 四川能投建工集团设计研究院有限公司 | Hydrocyanic acid oxidation reactor and tube plate cooling structure thereof |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20210801 |
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| CF01 | Termination of patent right due to non-payment of annual fee |