CN204977144U - Preparation is based on mould of honeycomb carrier of stainless steel fiber sintering - Google Patents
Preparation is based on mould of honeycomb carrier of stainless steel fiber sintering Download PDFInfo
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- CN204977144U CN204977144U CN201520412467.7U CN201520412467U CN204977144U CN 204977144 U CN204977144 U CN 204977144U CN 201520412467 U CN201520412467 U CN 201520412467U CN 204977144 U CN204977144 U CN 204977144U
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- die cavity
- stainless steel
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- plate
- steel fiber
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Abstract
The utility model discloses a preparation is based on mould of honeycomb carrier of stainless steel fiber sintering, including bottom plate, die cavity board, clamp plate, the die cavity board is arranged in between bottom plate and the clamp plate, the middle part of die cavity board is equipped with the die cavity, and the position corresponding to the die cavity on the clamp plate is equipped with the boss, the through hole that a plurality of confession fasteners passed is seted up to bottom plate, die cavity board and clamp plate relevant position. Be provided with the slot or the round hole that are used for fixed core in the die cavity. This mould structure is simple, and low cost in its honeycomb carrier technology of being applied to preparation stainless steel fiber sintering, has advantages such as simplifying processing, improve the quality of. The stainless steel fiber honeycomb carrier of preparing out through this mould is except having three -dimensional netted porous structure, aperture that the high accuracy communicates entirely, and the porosity is high, outside the big structural feature of specific surface, still has little access structure. The microchannel can also guarantee that carrier materials at fore -and -aft permeability, is favorable to reducing organic waste gas's pressure drop when increasing the surface area.
Description
Technical field
The utility model relates to the molding device used in catalyst support preparation technique, particularly relates to a kind of mould preparing the honeycomb substrate sintered based on stainless steel fibre.
Background technology
Atmosphere pollution is one of at present the most outstanding in the world environmental problem, and industrial organic exhaust gas is the important sources of atmosphere pollution.A large amount of industrial organic exhaust gas enters air, atmosphere quality must be made to decline, bring serious harm to health.The machine exhaust gas treatment technology applied in the world at present and developing mainly contains condensation method, absorption method, biologic treating technique, absorption process, photocatalysis, directly combustion method, Production by Catalytic Combustion Process etc.Wherein, Production by Catalytic Combustion Process, owing to having lower operating temperature than flame combustion and can operate at very low concentrations, becomes the most promising organic waste gas treatment method at present gradually.
Catalyst carrier is an important component part of catalytic combustion, is the key factor affecting catalyst efficiency.The Main Function of catalyst carrier is for catalytic combustion provides effective ratio area and suitable pore structure, and the mechanical strength that catalyst is obtained and heat endurance, play effect activated centre being provided and saving active component consumption.Therefore require that catalyst carrier material has enough heat endurances and mechanical strength, the center of catalytic reaction can be provided, there is higher specific area, suitable pore structure can be provided, there are lower thermal capacity and the coefficient of expansion etc.Catalyst carrier material at present for catalytic combustion mainly contains ceramic monolith and metallic carrier.
The advantages such as honeycomb ceramic carrier has thin-walled, and percent opening is high, and mechanical strength is large, Heat stability is good, shock-resistant, but large as the cordierite thermal capacitance of ceramic monolith main component, and thermal conductivity is not enough, there is the problem that catalyst light-off is slow.Therefore, this carrier catalysis purification efficiency has certain limitation.The advantages such as metal alloy carrier has good impact resistance and mechanical performance thermal conductivity is good, and thermal capacitance is little.But the research of metallic carrier wants much late compared with the research of ceramic monolith, also has many urgent problems at present: the high temperature oxidation resistance of carrier material is not good; Moulding process is too complicated; Carrier is poor in conjunction with fastness with the active surface layer of catalyst; Cost occupies high (about the twice of ceramic monolith) etc.This also governs the development of metallic carrier to a certain extent.
Therefore, manufacture a kind of mould used in stainless steel fibre sintering honeycomb substrate technique, have its necessity.
Summary of the invention
The purpose of this utility model is the shortcoming and defect overcoming above-mentioned prior art, provides a kind of structure simple, the mould of the honeycomb substrate that preparation easy to use sinters based on stainless steel fibre.
The utility model is achieved through the following technical solutions:
Prepare a mould for the honeycomb substrate based on stainless steel fibre sintering, comprise base plate 2, cavity plate 3, pressing plate 4; Described cavity plate 3 is placed between base plate 2 and pressing plate 4; The middle part of described cavity plate 3 is provided with die cavity 3-1, and the position that pressing plate 4 corresponds to die cavity 3-1 is provided with boss 4-1;
Described base plate 2, cavity plate 3 and pressing plate 4 relevant position offer multiple through hole passed for securing member.
The groove for fixing core or circular hole is provided with in described die cavity 3-1.
Be matched in clearance between described die cavity 3-1 and boss 4-1.
The height of described boss 4-1 is less than the degree of depth of die cavity 3-1.
Described securing member is made up of bolt 1 and nut 5, for base plate 2 and the pressing plate 4 of locking die.
The utility model is provided with die cavity at the middle part of cavity plate, and the position that pressing plate corresponds to die cavity is provided with boss, is provided with the groove for fixing core or circular hole in die cavity; In the honeycomb substrate preparation technology of stainless steel fibre sintering, can cooperatively interacting by die cavity and boss, the stainless steel fibre honeycomb substrate prepared is except having three-dimensional netted loose structure, the aperture of high accuracy full-mesh, porosity is high, outside the design feature that specific area is large, also there is MCA.Microchannel can also ensure the permeability of carrier material in longitudinal direction while increase surface area, is conducive to the pressure drop reducing organic exhaust gas.
The utility model, structure is simple, with low cost, is applied to prepare in the honeycomb substrate technique of stainless steel fibre sintering, has Simplified flowsheet, improves the advantages such as quality.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is more specifically described in detail.
Embodiment
As shown in Figure 1.A kind of mould preparing the honeycomb substrate sintered based on stainless steel fibre of the utility model, comprises base plate 2, cavity plate 3, pressing plate 4; Described cavity plate 3 is placed between base plate 2 and pressing plate 4; The middle part of described cavity plate 3 is provided with die cavity 3-1, and the position that pressing plate 4 corresponds to die cavity 3-1 is provided with boss 4-1; Described base plate 2, cavity plate 3 and pressing plate 4 relevant position offer multiple through hole passed for securing member.
The groove for fixing core or circular hole is provided with in described die cavity 3-1.
Be matched in clearance between described die cavity 3-1 and boss 4-1.
The height of described boss 4-1 is less than the degree of depth of die cavity 3-1.
Described securing member is made up of bolt 1 and nut 5, for base plate 2 and the pressing plate 4 of locking die.
The stainless steel short fiber taken successively uniform filling in the die cavity 3-1 of cavity plate 3, meanwhile corresponding core is filled in the middle of stainless steel fibre.There is in die cavity 3-1 groove or the circular hole of fixing core, the distribution of microchannel can be ensured.Pressing plate 4 applies certain pressure, and there is a boss 4-1 position corresponding to die cavity 3-1 of pressing plate 4, and boss 4-1 matches with die cavity 3-1.Apply power by spanner to bolt 1 and nut 5, clamping platen 4 and base plate 2, it is tighter that nut 5 is twisted, and the extruding force between base plate 2 and pressing plate 4 is larger.According to the principle of symmetrical locked mode, mold-locked the most at last, until by stainless steel fibre compacting.Unclamp nut 5 again after compacting, and on opposite, spray boron nitride releasing agent at base plate 2 and pressing plate 4, and then mold-locked is positioned in sintering furnace.
The honeycomb substrate based on stainless steel fibre sintering adopting this mould to prepare, has the MCA be interconnected, and can also ensure the permeability of carrier material while increasing surface area further, is conducive to the pressure drop reducing organic exhaust gas.Organic exhaust gas easily forms turbulent flow in by carrier material, effectively can improve radial mass-transfer efficiency, and then improves the catalytic efficiency to organic exhaust gas.In addition, longitudinally crosslinked microchannel also helps the heat exchange between gas, and particularly radial heat exchange, can effectively prevent catalyst high temperature failure.
As mentioned above, just the utility model can be realized preferably.
Embodiment of the present utility model is not restricted to the described embodiments; other are any do not deviate from Spirit Essence of the present utility model and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (5)
1. prepare a mould for the honeycomb substrate based on stainless steel fibre sintering, it is characterized in that: comprise base plate (2), cavity plate (3), pressing plate (4);
Described cavity plate (3) is placed between base plate (2) and pressing plate (4);
The middle part of described cavity plate (3) is provided with die cavity (3-1), is provided with boss (4-1) in the upper position corresponding to die cavity (3-1) of pressing plate (4);
Described base plate (2), cavity plate (3) and pressing plate (4) relevant position offer multiple through hole passed for securing member.
2. mould according to claim 1, is characterized in that: be provided with the groove for fixing core or circular hole in described die cavity (3-1).
3. mould according to claim 1, is characterized in that: be matched in clearance between described die cavity (3-1) and boss (4-1).
4. mould according to claim 1, is characterized in that: the height of described boss (4-1) is less than the degree of depth of die cavity (3-1).
5. mould according to claim 1, is characterized in that: described securing member is made up of bolt (1) and nut (5), for base plate (2) and the pressing plate (4) of locking die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520412467.7U CN204977144U (en) | 2015-06-15 | 2015-06-15 | Preparation is based on mould of honeycomb carrier of stainless steel fiber sintering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520412467.7U CN204977144U (en) | 2015-06-15 | 2015-06-15 | Preparation is based on mould of honeycomb carrier of stainless steel fiber sintering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204977144U true CN204977144U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520412467.7U Expired - Fee Related CN204977144U (en) | 2015-06-15 | 2015-06-15 | Preparation is based on mould of honeycomb carrier of stainless steel fiber sintering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204977144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938334A (en) * | 2017-02-28 | 2017-07-11 | 华南理工大学 | A kind of porous metal fiber sintered plate molding device based on numerical optimization |
-
2015
- 2015-06-15 CN CN201520412467.7U patent/CN204977144U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106938334A (en) * | 2017-02-28 | 2017-07-11 | 华南理工大学 | A kind of porous metal fiber sintered plate molding device based on numerical optimization |
| CN106938334B (en) * | 2017-02-28 | 2019-01-15 | 华南理工大学 | A kind of porous metal fiber sintered plate molding device based on numerical optimization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20180615 |