CN109506495B - Quadrangle loose material layer filler - Google Patents
Quadrangle loose material layer filler Download PDFInfo
- Publication number
- CN109506495B CN109506495B CN201811559345.5A CN201811559345A CN109506495B CN 109506495 B CN109506495 B CN 109506495B CN 201811559345 A CN201811559345 A CN 201811559345A CN 109506495 B CN109506495 B CN 109506495B
- Authority
- CN
- China
- Prior art keywords
- material layer
- filler
- supporting columns
- reinforcing plates
- gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000945 filler Substances 0.000 title claims abstract description 38
- 239000000463 material Substances 0.000 title abstract description 70
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 27
- 230000008093 supporting effect Effects 0.000 claims abstract description 13
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910000640 Fe alloy Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 37
- 239000007787 solid Substances 0.000 abstract description 20
- 238000011084 recovery Methods 0.000 abstract description 17
- 239000002918 waste heat Substances 0.000 abstract description 16
- 239000007789 gas Substances 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 8
- 239000008187 granular material Substances 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000012216 screening Methods 0.000 abstract description 2
- 240000004282 Grewia occidentalis Species 0.000 description 10
- 239000011800 void material Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 239000000112 cooling gas Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000013590 bulk material Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/005—Other direct-contact heat-exchange apparatus one heat-exchange medium being a solid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/082—Heat exchange elements made from metals or metal alloys from steel or ferrous alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F7/00—Elements not covered by group F28F1/00, F28F3/00 or F28F5/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Furnace Details (AREA)
Abstract
The invention relates to a filler for a four-corner-body loosening material layer, which comprises supporting columns and reinforcing plates, wherein four supporting columns are fixedly connected to the same end point, the included angle between every two adjacent supporting columns is 109.47 degrees, and any two supporting columns are fixedly connected by the reinforcing plates. The filler structure can effectively loosen the material layer, improve the porosity of the material layer and improve the gas flow resistance of the solid particle material layer. When the waste heat recovery shaft furnace process is used for heat recovery, the energy consumption of the air supply fan is greatly reduced; the cooling process is more uniform and efficient; the invention has good heat conductivity, heat stability and larger specific surface area, thereby improving the heat exchange efficiency between gas and solid and effectively reducing the cooling height of the material layer. The invention has the structural characteristics that the granular materials and the loose material layer filler are more easily separated by adopting a mechanical screening method in the subsequent working section.
Description
Technical Field
The invention relates to the field of solid material waste heat recovery, in particular to a tetragonal loose material layer filler for gas-solid contact waste heat recovery.
Background
At present, the waste heat recovery shaft furnace is common gas-solid contact heat transfer equipment, and has the advantages of high heat exchange efficiency, environment-friendly operation and the like, and is widely used, such as a dry quenching furnace, a sintering shaft furnace and the like. In the waste heat shaft furnace, high-temperature (500-1100 ℃) solid particles and circulating cooling gas flow reversely to complete the convection heat exchange process. The high-temperature gas after heat exchange enters a subsequent working section through an exhaust port for waste heat recovery, and the cooled low-temperature (50-200 ℃) solid particles are discharged from the bottom of the shaft furnace.
The operation energy consumption of the waste heat recovery shaft furnace mainly depends on the resistance of circulating cooling gas when passing through a solid particle material layer. When the circulating cooling gas passes through the solid particle material layer, the narrow circulation space of the material layer generates larger flow resistance to the gas. Experiments and theoretical analysis show that the unit sectional area passes through the same gas flow, the average particle diameter of the same particles is the smaller the porosity of the material layer is, the larger the gas flow resistance is; the unit sectional area passes through the same gas flow rate, the porosity of the same material layer is the same, and the smaller the average particle size of the solid particles is, the larger the gas flow resistance is. Therefore, when the principle of the waste heat recovery shaft furnace is utilized to recover the heat of the high-temperature granular materials with smaller porosity and average grain diameter, higher gas circulation resistance can be generated, the operation energy consumption is too high, and even the air supply system can not provide rated circulating air quantity, so that the waste heat recovery shaft furnace can not normally operate.
Disclosure of Invention
The invention provides a filler for a four-corner loosening material layer, which is filled between high-temperature material solid particles for recovering waste heat in gas-solid contact, and can effectively loosen the material layer, improve the porosity of the material layer and improve the gas circulation resistance of the solid particle material layer.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the utility model provides a four corners body pine material layer filler, includes support column, reinforcing plate, and four support columns are connected and are fixed in same extreme point, and the contained angle between two adjacent support columns is 109.47, is connected fixedly by the reinforcing plate between arbitrary two support columns, during the use, the filler equipartition is in the high temperature material solid particle of gas-solid contact waste heat recovery.
The specification and the size of the four support columns are the same.
The support column is a cylinder or a prism.
The number of the reinforcing plates is 6, the specifications and the sizes of the 6 reinforcing plates are the same, one reinforcing plate is fixed between every two supporting columns, and an isosceles triangle is formed between each supporting column and each reinforcing plate.
The support columns and the reinforcing plates are made of steel, iron or iron alloy.
Compared with the prior art, the invention has the beneficial effects that:
the filler of the four-corner loose material layer is uniformly mixed with the high-temperature particles, so that the void ratio of the particle material layer is improved, the void ratio uniformity degree of the material layer is improved, the gas flow resistance between unit material layers is reduced, and the energy consumption of a gas supply fan is greatly reduced when a waste heat recovery shaft furnace technology is used for heat recovery; the four-corner structure is not easy to generate uneven distribution of void ratio of the section of the material layer caused by rolling aggregation in the process of distributing materials at the top of the shaft furnace, so that the cooling process is more uniform and efficient; the invention has good heat conductivity, heat stability and larger specific surface area, thereby improving the heat exchange efficiency between gas and solid and effectively reducing the cooling height of the material layer. The design structure is firm, wear-resistant, simple and practical, is suitable for mass production, overhauling and maintenance, and can be recycled. The structure is characterized in that the method is easier to separate the granular materials from the loose material layer filler in the subsequent working section by adopting a mechanical screening method.
Drawings
FIG. 1 is a schematic perspective view of a filler of a four-corner-body loosening material layer according to the present invention.
FIG. 2 is a top view of a tetragonal bulk material layer filler of the present invention.
FIG. 3 is a schematic diagram of the prior art air flow distribution of a particulate material layer.
Fig. 4 is a schematic view showing the air flow distribution of the granular material layer filled with the tetragonal bulk material layer filler according to the present invention.
In the figure: 1-supporting columns; 2-reinforcing plates; 3-a high temperature particulate layer; 4-particle bed gaps; 5-direction of gas flow; 6-four corners loosen the gaps around the filler of the material layer.
Detailed Description
The following describes the embodiments of the present invention further:
as shown in figures 1-4, the filler for the four-corner loose material layer comprises support columns 1 and reinforcing plates 2, wherein the four support columns 1 are fixedly connected to the same end point, the included angle between every two adjacent support columns 1 is 109.47 degrees, and any two support columns 1 are fixedly connected by the reinforcing plates 2, and when the filler is used, the filler is uniformly distributed in high-temperature material solid particles for gas-solid contact waste heat recovery.
The specification and the size of the four support columns 1 are the same.
The support column 1 is a cylinder or a prism.
The number of the reinforcing plates 2 is 6, the specifications and the sizes of the 6 reinforcing plates are the same, one reinforcing plate 2 is fixed between every two supporting columns 1, and isosceles triangles are formed between the supporting columns 1 and the reinforcing plates 2.
The support column 1 and the reinforcing plate 2 are made of steel, iron or iron alloy. The support column 1 and the reinforcing plate 2 have good thermal conductivity and thermal stability.
The support column 1 and the reinforcing plate 2 can be integrally manufactured at one time by a method of punching, shearing, casting and the like of a grinding tool, and can also be manufactured by other methods (such as welding, cutting and the like).
The use method of the tetragonal loose material layer filler comprises the steps of uniformly mixing the tetragonal loose material layer filler into a high-temperature particle material layer according to the mass ratio of 0.2-5, wherein the tetragonal loose material layer filler has a supporting effect on the particle material, and promotes the distance between high-temperature particles or particle groups to be increased, so that the void ratio of the material layer is improved;
the small particles and the powdery high-temperature materials are concentrated between the supporting columns 1 and the reinforcing plates 2, so that the accumulation amount of the powdery materials among the large-particle high-temperature materials is correspondingly reduced, gaps among the large-particle high-temperature particle materials are increased, and the fluidity of air flow among the large-particle high-temperature particle layers is increased;
the small particles and powdery high-temperature materials piled between the support column 1 and the reinforcing plate 2 are fully thermally conductive with the tetragonal loose material layer filler, so that the heat exchange efficiency of the tetragonal loose material layer filler is improved.
The porosity change of the material layer can be regulated by changing the mixing proportion of the filler of the tetragonal loose material layer and the high-temperature particles.
Referring to fig. 3, the particle bed gap 4 is typically smaller and the gas of the same mass has a greater resistance through the bed per unit section. Referring to fig. 4, after the high-temperature granular material layer 3 is uniformly added with the tetragonal loose material layer filler, the gaps 4 of the granular material layer are increased due to the supporting effect of the filler structure, and the air flow can smoothly pass through the gaps 6 around the tetragonal loose material layer filler and the inner space of the tetragonal loose material layer filler, so that the air flow resistance of the unit material layer is effectively reduced. Meanwhile, smaller particles can enter the filler of the tetragonal loose material layer, so that the inter-particle gaps 4 are increased, and the void ratio distribution of the material layer is more uniform. When the shaft furnace is used for recycling waste heat of mixed materials consisting of the four-corner loose material layer filler and the hot particle material layer, the four-corner structure is not easy to roll and gather in the material distribution process at the top of the shaft furnace, so that the void ratio of the material layer section is uneven, and the cooling process is more uniform and efficient.
The addition of the filler of the four-corner loose material layer increases the gas-solid heat exchange area between the high-temperature particle material layers 3, and the filler of the four-corner loose material layer has good heat conductivity, and the high-temperature particle material layers 3 and the filler of the four-corner loose material layer conduct heat transfer through the modes of heat conduction, heat radiation and the like between solids, so that the gas-solid heat exchange efficiency between the mixture layers is improved. The filler of the tetragonal loose material layer has good structural strength performance and can be repeatedly used.
The mixing proportion of the tetragonal loose material layer filler and the high-temperature particle material layer 3 can be adjusted according to the specific condition of the operation of the shaft furnace, so that the operation energy consumption of an air supply system in the process of the waste heat recovery shaft furnace is reduced, and the processing capacity and the heat recovery efficiency of the waste heat recovery shaft furnace are improved. According to different particle material shapes and sizes and different requirements of operation of the heat recovery shaft furnace, the structural sizes of all parts of the filler of the four-corner loosening material layer are different, the length of the support column 1 can be 10-200 mm, usually 20-100 mm, and the specific size is designed according to the shape and size characteristics of the particle material.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (2)
1. The filler is characterized by comprising support columns and reinforcing plates, wherein the four support columns are fixedly connected to the same end point, the included angle between every two adjacent support columns is 109.47 degrees, and any two support columns are fixedly connected by the reinforcing plates;
the specification and the size of the four support columns are the same;
the support column is a cylinder or a prism;
the number of the reinforcing plates is 6, the specifications and the sizes of the 6 reinforcing plates are the same, one reinforcing plate is fixed between every two supporting columns, and an isosceles triangle is formed between each supporting column and each reinforcing plate.
2. A tetragonal bulk filler according to claim 1, wherein the support columns and reinforcing plates are steel, iron or iron alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559345.5A CN109506495B (en) | 2018-12-19 | 2018-12-19 | Quadrangle loose material layer filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559345.5A CN109506495B (en) | 2018-12-19 | 2018-12-19 | Quadrangle loose material layer filler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109506495A CN109506495A (en) | 2019-03-22 |
| CN109506495B true CN109506495B (en) | 2024-03-19 |
Family
ID=65753886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811559345.5A Active CN109506495B (en) | 2018-12-19 | 2018-12-19 | Quadrangle loose material layer filler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109506495B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220913A (en) * | 1997-08-25 | 1999-06-30 | 气体产品与化学公司 | Stackable structural packing with controlled symmetry |
| DE10021258A1 (en) * | 2000-04-26 | 2001-10-31 | Helmut Stach | Packing, used for carrying out material and heat exchange processes in fixed beds in heaters, air conditioners and ventilation devices, has reaction chambers filled with granules arranged in column |
| CN1552511A (en) * | 2003-05-31 | 2004-12-08 | 中国石油化工股份有限公司 | Operating method for fixed bed gas-liquid counter current reactor |
| DE10140276A1 (en) * | 2001-08-16 | 2005-01-05 | Pfeiffer, Wolfdietrich | Apparatus for producing homogeneous particle packing, e.g. for chromatography, comprises sealed sleeve with pyramidal porous caps ends, with sleeve being made from porous or roughened plates and as polygonal prism |
| CN108435123A (en) * | 2018-04-28 | 2018-08-24 | 中冶焦耐(大连)工程技术有限公司 | A kind of diamond filler |
| CN209512565U (en) * | 2018-12-19 | 2019-10-18 | 中冶焦耐(大连)工程技术有限公司 | A kind of quadrangle body pine material layer filler |
-
2018
- 2018-12-19 CN CN201811559345.5A patent/CN109506495B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1220913A (en) * | 1997-08-25 | 1999-06-30 | 气体产品与化学公司 | Stackable structural packing with controlled symmetry |
| DE10021258A1 (en) * | 2000-04-26 | 2001-10-31 | Helmut Stach | Packing, used for carrying out material and heat exchange processes in fixed beds in heaters, air conditioners and ventilation devices, has reaction chambers filled with granules arranged in column |
| DE10140276A1 (en) * | 2001-08-16 | 2005-01-05 | Pfeiffer, Wolfdietrich | Apparatus for producing homogeneous particle packing, e.g. for chromatography, comprises sealed sleeve with pyramidal porous caps ends, with sleeve being made from porous or roughened plates and as polygonal prism |
| CN1552511A (en) * | 2003-05-31 | 2004-12-08 | 中国石油化工股份有限公司 | Operating method for fixed bed gas-liquid counter current reactor |
| CN108435123A (en) * | 2018-04-28 | 2018-08-24 | 中冶焦耐(大连)工程技术有限公司 | A kind of diamond filler |
| CN209512565U (en) * | 2018-12-19 | 2019-10-18 | 中冶焦耐(大连)工程技术有限公司 | A kind of quadrangle body pine material layer filler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109506495A (en) | 2019-03-22 |
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