CN107576217B - Screen plate type powder flow heat exchanger - Google Patents
Screen plate type powder flow heat exchanger Download PDFInfo
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- CN107576217B CN107576217B CN201710938624.1A CN201710938624A CN107576217B CN 107576217 B CN107576217 B CN 107576217B CN 201710938624 A CN201710938624 A CN 201710938624A CN 107576217 B CN107576217 B CN 107576217B
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- heat transfer
- transfer plate
- heat exchange
- plate group
- plates
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- 239000000843 powder Substances 0.000 title claims abstract description 32
- 238000012546 transfer Methods 0.000 claims abstract description 94
- 239000000463 material Substances 0.000 claims abstract description 61
- 238000002955 isolation Methods 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 6
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 2
- 241001233242 Lontra Species 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 20
- 238000001035 drying Methods 0.000 abstract description 14
- 238000001816 cooling Methods 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000005192 partition Methods 0.000 abstract description 4
- 239000002912 waste gas Substances 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000010926 purge Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 235000011293 Brassica napus Nutrition 0.000 description 1
- 240000002791 Brassica napus Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- -1 building Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000009700 powder processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000003039 volatile agent Substances 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a screen plate type powder flow heat exchanger which comprises a feeding bin, a heat transfer plate group and a discharging bin which are sequentially and correspondingly arranged from top to bottom, wherein a feeding hole is formed in the top of the feeding bin, the heat transfer plate group is provided with an upper heat transfer plate group and a lower heat transfer plate group, the upper heat transfer plate group and the lower heat transfer plate group comprise a first heat transfer plate group and a second heat transfer plate group, heat transfer plates respectively arranged in the first heat transfer plate group and the second heat transfer plate group comprise a first heat transfer plate and a second heat transfer plate, the first heat transfer plate and the second heat transfer plate are separated from each other up and down, the first heat transfer plate is sequentially arranged with two groups and is arranged in the first heat transfer plate group in an inverted V-shaped structure, and the second heat transfer plate is sequentially arranged with two groups and is arranged in the second heat transfer plate group in a V-shaped structure. The invention is applied to the drying, cooling or heating of powder materials, and the partition wall type drying, heating and cooling materials can dry, heat and cool the powder materials, so that no waste gas is discharged, the energy consumption is low and the operation cost is low.
Description
Technical Field
The invention relates to a mesh plate type powder flow heat exchanger suitable for powder cooling, powder heating or powder drying.
Background
In the chemical, building, plastics and biological industries, many particulate materials are dried, cooled or heated before being put into industrial production. Such as drying processes, require removal of moisture from the feedstock by heating to obtain a solid material of a specified moisture content or further processing requirements. In addition, the dried materials are convenient to transport and store, and the rice and the rapeseeds can be dried to be below a certain moisture content so as to prevent mildew. However, the drying and natural drying of these materials can not meet the needs of industrial and practical production development, and various mechanized drying devices are increasingly widely used. In the field of fertilizers, the fertilizers need to be cooled before being packaged and put in storage to prevent caking. In addition, in the field of starch, lime or other powder processing and manufacturing, the materials are often heated for heat treatment modification, so that certain influence can be caused on the materials, and the use effect is poor.
Disclosure of Invention
The invention aims to provide the mesh plate type powder flow heat exchanger which is applied to drying, cooling or heating of powder materials, and partition wall type drying, heating and cooling of the materials, so that the powder materials can be dried, heated and cooled, no waste gas is discharged, the energy consumption is low and the operation cost is low.
The technical scheme of the invention is that the screen plate type powder flow heat exchanger comprises a feeding bin, a heat transfer plate group and a discharging bin which are sequentially and correspondingly arranged from top to bottom, wherein a feeding hole is formed in the top of the feeding bin, the heat transfer plate group is provided with an upper heat transfer plate group and a lower heat transfer plate group, the heat transfer plate group comprises a first heat transfer plate group and a second heat transfer plate group, heat transfer plates respectively arranged in the first heat transfer plate group and the second heat transfer plate group comprise a first heat transfer plate sheet and a second heat transfer plate sheet, the first heat transfer plates and the second heat transfer plates are arranged up and down in a separated mode, a plurality of first heat transfer plates are arranged in the first heat transfer plate group, two groups of heat transfer plates are sequentially arranged in the second heat transfer plate group and are arranged in a V-shaped structure, and the inner sides of the first heat transfer plates and the second heat transfer plates form a diamond structure together.
In a preferred embodiment of the invention, the two sides in the feeding bin are respectively provided with a drainage plate, and the lower ends of the drainage plates at the two sides are obliquely arranged inwards.
In a preferred embodiment of the invention, the heat exchange plates are stacked by two metal plates, are welded together by laser penetration, and then an internal heat exchange channel is formed between the plates by expansion of high-pressure fluid, and the side edges of the heat exchange plates are respectively provided with an upper pipe outlet and a lower pipe inlet correspondingly.
In a preferred embodiment of the invention, the outer side of the first heat exchange plate is provided with a first material isolation grid with an upper part inclined inwards.
In a preferred embodiment of the invention, the outer side of the second heat exchanger plate is provided with a lower inwardly inclined second material separation grid.
In a preferred embodiment of the present invention, a diamond-shaped third material isolation grid is disposed at the diamond-shaped structure.
In a preferred embodiment of the present invention, the inlet openings of the plurality of first heat exchange plates are arranged in the shell of the first heat transfer plate group in a protruding manner and are correspondingly provided with a first heat exchange medium inlet header, the first heat exchange medium inlet header is correspondingly provided with a first heat exchange medium inlet, the outlet openings of the plurality of first heat exchange plates are arranged in the shell of the first heat transfer plate group in a protruding manner and are correspondingly provided with a first heat exchange medium outlet header, the first heat exchange medium outlet header is correspondingly provided with a first heat exchange medium outlet, the shell of the first heat transfer plate group is correspondingly provided with a first air inlet and two first air outlets, the first air inlet is positioned above the first heat exchange medium inlet header and is positioned in the third material isolation grating, and the first air outlet is positioned at two sides of the first heat exchange medium outlet header and is positioned between the inner wall of the shell of the first heat exchange medium outlet header and the first material isolation grating.
In a preferred embodiment of the present invention, the inlet openings of the plurality of second heat exchange plates are arranged in the shell of the second heat transfer plate group in a protruding manner and are correspondingly provided with a second heat exchange medium inlet header, the second heat exchange medium inlet header is correspondingly provided with a second heat exchange medium inlet, the outlet openings of the plurality of second heat exchange plates are arranged in the shell of the second heat transfer plate group in a protruding manner and are correspondingly provided with a second heat exchange medium outlet header, the second heat exchange medium outlet header is correspondingly provided with a second heat exchange medium outlet, the shell of the second heat transfer plate group is correspondingly provided with two second air inlets and a second air outlet, and the second air inlets are positioned at two sides of the second heat exchange medium inlet header and are positioned between the inner wall of the shell of the second heat transfer plate group and the second material isolation grating, and the second air outlets are positioned below the second heat exchange medium outlet header and are positioned in the third material isolation grating.
The invention relates to a screen plate type powder flow heat exchanger which is applied to drying, cooling or heating of powder materials, and partition wall type drying, heating and cooling of the materials, so that the powder materials can be dried, heated and cooled, no waste gas is discharged, the energy consumption is low, and the operation cost is low.
Drawings
FIG. 1 is a perspective view of a mesh plate type powder flow heat exchanger according to a preferred embodiment of the present invention;
FIG. 2 is a rear cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of a heat exchanger plate in a preferred embodiment of a mesh plate type powder flow heat exchanger according to the present invention;
FIG. 4 is a schematic view illustrating the installation of a first heat exchanger plate in a preferred embodiment of a mesh plate type powder flow heat exchanger according to the present invention;
FIG. 5 is a schematic view of a portion of the air flow of portion of FIG. 4A;
FIG. 6 is a perspective view of a first heat exchanger plate and a material isolation grid in a preferred embodiment of a mesh plate type powder flow heat exchanger according to the present invention;
Fig. 7 is a schematic material blanking diagram of the third material isolation grating of fig. 6.
Detailed Description
The following detailed description of the preferred embodiments of the invention is provided to enable those skilled in the art to more readily understand the advantages and features of the invention and to make a clear and concise definition of the scope of the invention.
The invention relates to a mesh plate type powder flow heat exchanger, as shown in fig. 1 and 2-7, comprising a feeding bin 1, a heat transfer plate group and a discharging bin 2 which are sequentially and correspondingly arranged from top to bottom, wherein the top of the feeding bin is provided with a feeding port 3, the heat transfer plate group is provided with an upper heat transfer plate group 4 and a lower heat transfer plate group 5, the first heat transfer plate group 4 and the second heat transfer plate group 5 are respectively provided with a heat transfer plate sheet comprising a first heat transfer plate sheet 6 and a second heat transfer plate sheet 7, the first heat transfer plate sheet 6 and the second heat transfer plate sheet 7 are separated from each other, the first heat transfer plate 4 is internally provided with a plurality of first heat transfer plates 6, the first heat transfer plate 6 is sequentially provided with two groups in an inverted V-shaped structure and is arranged in the first heat transfer plate group 4, the second heat transfer plate 5 is internally provided with a plurality of second heat transfer plates 7, the second heat exchange plates 7 are sequentially arranged in two groups and are arranged in the second heat transfer plate group 5 in a V-shaped structure, the inner sides of the first heat exchange plates 6 and the second heat exchange plates 7 jointly form a diamond structure, the two sides in the feeding bin 1 are respectively provided with a drainage plate 8, the lower ends of the drainage plates 8 on the two sides are obliquely arranged inwards, the heat exchange plates are overlapped by two metal plates and are welded together by laser penetration, then the plates are expanded by high-pressure fluid to form an internal heat exchange channel, the side edges of the heat exchange plates are respectively correspondingly provided with an upper outlet pipe 9 and a lower inlet pipe orifice 10, the outer side of the first heat exchange plates 6 is provided with a first material isolation grid 11 with an upper part inclined inwards, the outer side of the second heat exchange plates 7 is provided with a second material isolation grid 12 with a lower part inclined inwards, the diamond-shaped structure is provided with a diamond-shaped third material isolating grating 13, the inlet openings 10 of the first heat exchange plates 6 are arranged on the shell of the first heat exchange plate group 4 in a protruding mode and are correspondingly provided with a first heat exchange medium inlet header 14, the first heat exchange medium inlet header 14 is correspondingly provided with a first heat exchange medium inlet 15, the outlet openings 9 of the first heat exchange plates 6 are arranged on the shell of the first heat exchange plate group 6 in a protruding mode and are correspondingly provided with a first heat exchange medium outlet header 16, the first heat exchange medium outlet header 16 is correspondingly provided with a first heat exchange medium outlet 17, the shell of the first heat exchange plate group 4 is correspondingly provided with a first air inlet 18 and two first air outlets 19, the first air inlet 18 is positioned above the first heat exchange medium inlet header 14 and is positioned in the third material isolating grating 13, the first air inlet header 19 is positioned on two sides of the first heat exchange medium outlet header 16 and is positioned between the inner wall of the shell of the first heat exchange plate group 4 and the first material isolating grating 11, the second heat exchange plates 7 are arranged on the shell of the second heat exchange plate group 6 and are correspondingly provided with a second heat exchange medium outlet 17, the second heat exchange plate group 5 is correspondingly provided with a second heat exchange medium outlet 22, the second heat exchange plate group 20 is correspondingly provided with a second heat exchange medium inlet opening 20 and a plurality of heat exchange medium outlet openings 20, the first heat exchange plate group 20 is correspondingly arranged on the second heat exchange plate group 5 and is correspondingly provided with a second heat exchange medium inlet opening 20, the second heat exchange plate group 20 is correspondingly provided with a second heat exchange medium inlet opening 20, and a heat exchange medium inlet opening 20 is correspondingly arranged on the second heat exchange plate group 5, and is correspondingly provided with a second heat exchange medium inlet opening 20, the second inlet port 24 is located on both sides of the second heat exchange medium inlet header 20 between the inner shell wall of the second group of heat transfer plates 5 and the second material barrier rib 12, and the second outlet port 25 is located below the second heat exchange medium outlet header 22 and within the third material barrier rib 13.
And (3) drying:
The material flows between the heat exchange plates under the action of gravity, the heating medium flows through the heat exchange plates, so that the material flowing outside the heat exchange plates is indirectly heated, and the indirectly heated material is purged, so that moisture generated by indirectly heating the material is introduced, and meanwhile, the material isolation grating is introduced, and the heating medium of the heat exchange plates is isolated from the material.
A method for removing volatiles from a powder material comprising the steps of:
The material is introduced between a plurality of heat exchange plates which are arranged in a crossed way, the material flows through the heat exchange plates under the action of gravity, so that a heating medium flows through the heat exchange plates, and meanwhile, the material flowing through the heat exchange plates is purged, the material isolation grid is introduced, and the wall surface of the heat exchange plates isolates the heating fluid from the material outside the plates, so that the material cannot enter. The purge fluid may be air or a gas, such as nitrogen. The purge fluid may be superheated steam. The steam may be at a low pressure, such as below atmospheric pressure, or at atmospheric or superatmospheric pressure. In order to increase the efficiency, waste heat after heat treatment can be utilized, namely, the waste heat can be used for heating materials or used as purge air, and air flows cross-flow among holes of the heat exchange plates so as to improve the efficiency.
Heating or cooling:
As shown in fig. 7, the material is isolated by the third material isolation grating during the falling process, and slides down on the surface of the third material isolation grating.
The material flows between the heat exchange plates under the action of gravity, and a heating or cooling medium flows through the heat exchange plates, so that the material flowing through the outside of the heat exchange plates is indirectly heated or cooled; and simultaneously purging the indirectly heated or cooled material, promoting the flow property of the powder material and avoiding bridging.
The invention relates to a screen plate type powder flow heat exchanger which is applied to drying, cooling or heating of powder materials, and partition wall type drying, heating and cooling of the materials, so that the powder materials can be dried, heated and cooled, no waste gas is discharged, the energy consumption is low, and the operation cost is low.
The foregoing is merely illustrative of the embodiments of the present invention, and the scope of the present invention is not limited thereto, and any changes or substitutions that may be made by those skilled in the art without departing from the inventive concept are intended to be included within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.
Claims (6)
1. The utility model provides a otter board formula powder flows heat exchanger, includes feeding storehouse, heat transfer plate group and the lower feed bin that top-down corresponds the setting in proper order, its characterized in that: the feeding bin comprises a feeding bin, wherein a feeding hole is formed in the top of the feeding bin, an upper heat transfer plate group and a lower heat transfer plate group are respectively arranged, a first heat transfer plate group and a second heat transfer plate group are respectively arranged, heat transfer plates are respectively arranged in the first heat transfer plate group and the second heat transfer plate group, the first heat transfer plates and the second heat transfer plates are respectively arranged in an up-down separation mode, a plurality of first heat transfer plates are arranged in the first heat transfer plate group, the first heat transfer plates are sequentially arranged in two groups and are arranged in the first heat transfer plate group in an inverted V-shaped structure, a plurality of second heat transfer plates are arranged in the second heat transfer plate group, the second heat transfer plates are sequentially arranged in two groups and are arranged in the second heat transfer plate group in a V-shaped structure, and the inner sides of the first heat transfer plates and the second heat transfer plates jointly form a diamond structure;
The two sides in the feeding bin are respectively provided with a drainage plate, and the lower end parts of the drainage plates at the two sides are obliquely arranged inwards; the heat exchange plates are stacked by two metal plates and welded together by laser penetration, then an internal heat exchange channel is formed between the plates by expansion of high-pressure fluid, and the side edges of the heat exchange plates are respectively and correspondingly provided with an upper pipe outlet and a lower pipe inlet.
2. The mesh-plate type powder flow heat exchanger according to claim 1, wherein: the outside of first heat transfer board is provided with the first material isolation bars of upper portion inwards slope.
3. The mesh-plate type powder flow heat exchanger according to claim 2, wherein: the outer side of the second heat exchange plate is provided with a second material isolation grid with the lower part inclined inwards.
4. A mesh-plate type powder flow heat exchanger according to claim 3, wherein: and a diamond-shaped third material isolation grid is arranged at the diamond-shaped structure.
5. The mesh-plate type powder flow heat exchanger according to claim 4, wherein: the inlet pipe openings of the first heat exchange plates are arranged on the shell of the first heat transfer plate group in a protruding mode and are correspondingly provided with a first heat exchange medium inlet header pipe, the first heat exchange medium inlet header pipe is correspondingly provided with a first heat exchange medium inlet, the outlet pipe openings of the first heat exchange plates are arranged on the shell of the first heat transfer plate group in a protruding mode and are correspondingly provided with a first heat exchange medium outlet header pipe, the first heat exchange medium outlet header pipe is correspondingly provided with a first heat exchange medium outlet, the shell of the first heat transfer plate group is also correspondingly provided with a first air inlet and two first air outlets, the first air inlet is located above the first heat exchange medium inlet header pipe and is located in a third material isolation grating, and the first air outlets are located on two sides of the first heat exchange medium outlet header pipe and between the inner wall of the shell of the first heat transfer plate group and the first material isolation grating.
6. The mesh-plate type powder flow heat exchanger according to claim 5, wherein: the inlet pipe openings of the second heat exchange plates are arranged on the shell of the second heat transfer plate group in a protruding mode, a second heat exchange medium inlet header pipe is correspondingly arranged on the second heat exchange medium inlet header pipe, a second heat exchange medium inlet is correspondingly arranged on the second heat exchange medium inlet header pipe, the outlet pipe openings of the second heat exchange plates are arranged on the shell of the second heat transfer plate group in a protruding mode, a second heat exchange medium outlet is correspondingly arranged on the second heat exchange medium outlet header pipe, two second air inlets and a second air outlet are correspondingly arranged on the shell of the second heat transfer plate group, the second air inlets are located on two sides of the second heat exchange medium inlet header pipe and are located between the inner wall of the shell of the second heat transfer plate group and the second material isolation grating, and the second air outlets are located below the second heat exchange medium outlet header pipe and in the third material isolation grating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710938624.1A CN107576217B (en) | 2017-10-11 | 2017-10-11 | Screen plate type powder flow heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710938624.1A CN107576217B (en) | 2017-10-11 | 2017-10-11 | Screen plate type powder flow heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107576217A CN107576217A (en) | 2018-01-12 |
| CN107576217B true CN107576217B (en) | 2024-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710938624.1A Active CN107576217B (en) | 2017-10-11 | 2017-10-11 | Screen plate type powder flow heat exchanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN107576217B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539833B (en) * | 2018-12-26 | 2023-09-15 | 中冶焦耐(大连)工程技术有限公司 | '0' leakage type cooler and working method thereof |
| CN112066767B (en) * | 2020-07-30 | 2021-08-13 | 西安交通大学 | Heat exchange device and method for periodically regulating and controlling velocity gradient and velocity directional regulation and control particle flow |
| CN111895726B (en) * | 2020-08-24 | 2022-03-08 | 安徽华星化工有限公司 | Anti-caking drying method for cartap |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2357303Y (en) * | 1998-11-13 | 2000-01-05 | 大连理工大学 | Powder solid flow plate type heat-exchanger |
| US6328099B1 (en) * | 1999-04-21 | 2001-12-11 | Mississippi Chemical Corporation | Moving bed dryer |
| CN102425965A (en) * | 2011-12-01 | 2012-04-25 | 兰州节能环保工程有限责任公司 | Plate type heat exchanger for granular solid materials |
| CN207395540U (en) * | 2017-10-11 | 2018-05-22 | 苏州协宏泰节能科技有限公司 | A kind of screen plate powder flow heat exchanger |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8578624B2 (en) * | 2006-05-05 | 2013-11-12 | Solex Thermal Science Inc. | Indirect-heat thermal processing of particulate material |
-
2017
- 2017-10-11 CN CN201710938624.1A patent/CN107576217B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2357303Y (en) * | 1998-11-13 | 2000-01-05 | 大连理工大学 | Powder solid flow plate type heat-exchanger |
| US6328099B1 (en) * | 1999-04-21 | 2001-12-11 | Mississippi Chemical Corporation | Moving bed dryer |
| CN102425965A (en) * | 2011-12-01 | 2012-04-25 | 兰州节能环保工程有限责任公司 | Plate type heat exchanger for granular solid materials |
| CN207395540U (en) * | 2017-10-11 | 2018-05-22 | 苏州协宏泰节能科技有限公司 | A kind of screen plate powder flow heat exchanger |
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| CN107576217A (en) | 2018-01-12 |
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