CN114180343A - Method for improving ash conveying system - Google Patents
Method for improving ash conveying system Download PDFInfo
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- CN114180343A CN114180343A CN202111285409.9A CN202111285409A CN114180343A CN 114180343 A CN114180343 A CN 114180343A CN 202111285409 A CN202111285409 A CN 202111285409A CN 114180343 A CN114180343 A CN 114180343A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005243 fluidization Methods 0.000 claims abstract description 54
- 239000004744 fabric Substances 0.000 claims abstract description 33
- 239000002699 waste material Substances 0.000 claims abstract description 23
- 238000003860 storage Methods 0.000 claims abstract description 10
- 230000001131 transforming effect Effects 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims abstract description 9
- 230000009471 action Effects 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 7
- 230000005484 gravity Effects 0.000 claims abstract description 7
- 239000000835 fiber Substances 0.000 claims description 30
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 30
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 29
- 238000003756 stirring Methods 0.000 claims description 27
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims description 24
- 239000002994 raw material Substances 0.000 claims description 18
- 239000000126 substance Substances 0.000 claims description 18
- 238000005520 cutting process Methods 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 15
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 230000003712 anti-aging effect Effects 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 238000007598 dipping method Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 12
- 229920001684 low density polyethylene Polymers 0.000 claims description 12
- 239000004702 low-density polyethylene Substances 0.000 claims description 12
- 239000000314 lubricant Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 9
- 238000009941 weaving Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 229910021536 Zeolite Inorganic materials 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 239000002759 woven fabric Substances 0.000 claims description 3
- 230000006872 improvement Effects 0.000 claims description 2
- 238000006477 desulfuration reaction Methods 0.000 abstract description 10
- 230000023556 desulfurization Effects 0.000 abstract description 10
- 238000001125 extrusion Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/16—Gas pressure systems operating with fluidisation of the materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/38—Modification of material containing walls to facilitate fluidisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/20—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the material of the fibres or filaments constituting the yarns or threads
- D03D15/292—Conjugate, i.e. bi- or multicomponent, fibres or filaments
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The application provides a method for improving an ash conveying system, and belongs to the technical field of desulfurization, denitrification and dust removal. The method comprises the following steps: s1, transforming a fluidization chute, namely transforming the size of the fluidization chute into 280mm in height and 230mm in width; s2, arranging fluidization cloth, wherein the position of the fluidization cloth is 92mm away from the bottom of the fluidization chute, the lower part of the fluidization cloth is provided with a fluidization air channel, and the upper layer of the fluidization cloth is an actual effective ash discharge space; s3, mounting a fluidization chute, namely mounting the fluidization chute at a mounting inclination angle of 6 degrees; and S4, conveying the desulfurized waste ash into the waste ash storage under the combined action of fluidizing air, gravity and dust collecting air suction force of the ash storage after the desulfurized waste ash falls into the fluidizing chute. A large amount of backlog condition before desulfurization waste ash falls into behind the new fluidization chute through this application transformation, can be carried to the waste ash storehouse fast under the combined action of fluidization wind, gravity, ash storehouse dust collection wind suction in, avoided the extrusion to block up, reduced the condition that partial desulfurization ash is long-term to be built up, increased the fluidization effect when unloading the ash, make things convenient for the staff to overhaul in addition, increased personal safety.
Description
Technical Field
The application relates to the technical field of desulfurization, denitrification and dust removal, in particular to a method for improving an ash conveying system.
Background
The original ash conveying chute is large in volume (4.5 meters in the north side and 1.5 meters in the south side), because the ash storage is small in volume, the chute bears part of ash storage function in the early stage, the bottom fluidized cloth is squeezed by waste ash after the chute is full of ash, the fluidization effect during ash unloading is greatly reduced, so that part of desulfurized ash is accumulated for a long time, when the chute shell is corroded, aged and cracked, and the waste ash is damped and hardened after rain, the hardness is large, meanwhile, the manhole opening of the chute is small, the chute is not provided with a construction and maintenance platform, the operation height is 15 meters, the personal safety of maintainers is difficult to guarantee, and after congestion, a large amount of cleaned waste ash can be blown to the ground, and the environmental sanitation of a plant area is seriously affected.
Disclosure of Invention
In order to make up for the defects, the application provides a method for modifying an ash conveying system.
The embodiment of the application provides a method for transforming an ash conveying system, which comprises the following steps:
s1, transforming a fluidization chute, namely transforming the size of the fluidization chute into 280mm in height and 230mm in width;
s2, arranging fluidization cloth, wherein the position of the fluidization cloth is 92mm away from the bottom of the fluidization chute, the lower part of the fluidization cloth is provided with a fluidization air channel, and the upper layer of the fluidization cloth is an actual effective ash discharge space;
s3, mounting a fluidization chute, namely mounting the fluidization chute at a mounting inclination angle of 6 degrees;
and S4, conveying the desulfurized waste ash into the waste ash storage under the combined action of fluidizing air, gravity and dust collecting air suction force of the ash storage after the desulfurized waste ash falls into the fluidizing chute.
In a particular embodiment, the fluidization chute includes a bottom plate and a side plate, the side plate and the bottom plate being fixedly connected via a cutting and welding process.
In a specific embodiment, the cutting and welding process comprises the following specific steps:
s101, taking a raw material plate for manufacturing a bottom plate and raw material plates for a plurality of groups of side plates;
s102, cutting the raw material plates into required sizes by using a cutting machine respectively;
s103, arranging the bottoms of the groups of cut side plates on the outer surface of the cut bottom plate, and welding the bottom plates around the cut bottom plate by a welding machine;
and S104, welding and fixing the end parts of the plurality of groups of cut side plates.
In a specific embodiment, the fluidized arrangement is an air-permeable polyester staple fiber cloth.
In a specific embodiment, the method for preparing the fluidized cloth comprises the following steps:
s201, preparing raw materials, namely taking carbon fibers and master batches, and uniformly stirring and mixing to obtain a mixture for later use;
s202, merging and expanding the mixture, widening the mixed fibers by utilizing ultrasonic waves and an electromagnetic super effect, and ensuring that the mixed fiber tows are uniformly arranged in a specified range;
s203, winding the processed mixed fibers;
s204, gum dipping, namely releasing the mixed fiber roll, and uniformly dipping resin glue to ensure the positioning of the mixed fiber and roll the mixed fiber after gum dipping;
s205, slitting and coiling, namely slitting and coiling the mixed fiber cloth after gum dipping according to the width requirement;
s206, weaving, namely mounting the single-disc expanded tows on a weaving machine, weaving according to the specified requirements, and rolling the woven mixed fiber woven cloth;
and S207, shaping and cutting, wherein the mixed fiber woven fabric is shaped according to needs and cut according to the size to obtain a finished product of the fluidized fabric.
In a specific embodiment, the master batch comprises the following raw materials in parts by weight: 8-32 parts of low-density polyethylene, 18-36 parts of EVA (ethylene-vinyl acetate), 4-10 parts of lubricant, 4-12 parts of porous inorganic substance and 1-3 parts of anti-aging agent.
In a particular embodiment, the EVA is selected from ethylene-vinyl acetate copolymers.
In a specific embodiment, the porous inorganic substance is selected from one or more of silica, diatomite and zeolite.
In a specific embodiment, the preparation method of the master batch comprises the following steps:
s301, sequentially adding low-density polyethylene, EVA, a lubricant and a porous inorganic substance in parts by weight into a high-speed mixing machine;
s302, stirring for 15-30 minutes;
s303, adding an anti-aging agent, stirring for 4-8 minutes, and discharging;
s304, granulating by using a double-screw extruder or an internal mixer, and discharging to obtain master batches.
In a specific embodiment, the stirring speed in S302 is 1000-1500r/min, and the stirring speed in S303 is 500-700 r/min.
Has the advantages that: a large amount of backlog condition before desulfurization waste ash falls into behind the new fluidization chute through this application transformation, can be carried to the waste ash storehouse fast under the combined action of fluidization wind, gravity, ash storehouse dust collection wind suction in, avoided the extrusion to block up, reduced the condition that partial desulfurization ash is long-term to be built up, increased the fluidization effect when unloading the ash, make things convenient for the staff to overhaul in addition, increased personal safety.
Drawings
In order to more clearly explain the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that for those skilled in the art, other related drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a flow chart provided in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example 1
Referring to fig. 1, the present application provides a method for transforming an ash conveying system, comprising the following steps:
s1, transforming a fluidization chute, namely transforming the size of the fluidization chute into 280mm in height and 230mm in width;
s2, arranging fluidization cloth, wherein the position of the fluidization cloth is 92mm away from the bottom of the fluidization chute, the lower part of the fluidization cloth is provided with a fluidization air channel, and the upper layer of the fluidization cloth is an actual effective ash discharge space;
s3, mounting a fluidization chute, namely mounting the fluidization chute at a mounting inclination angle of 6 degrees;
and S4, conveying the desulfurized waste ash into the waste ash storage under the combined action of fluidizing air, gravity and dust collecting air suction force of the ash storage after the desulfurized waste ash falls into the fluidizing chute.
In this embodiment, the fluidization chute includes a bottom plate and a side plate, and the side plate and the bottom plate are fixedly connected through a cutting and welding process; the cutting and welding process comprises the following specific steps:
s101, taking a raw material plate for manufacturing a bottom plate and raw material plates for a plurality of groups of side plates;
s102, cutting the raw material plates into required sizes by using a cutting machine respectively;
s103, arranging the bottoms of the groups of cut side plates on the outer surface of the cut bottom plate, and welding the bottom plates around the cut bottom plate by a welding machine;
and S104, welding and fixing the end parts of the plurality of groups of cut side plates.
In this embodiment, the fluidized bed cloth is a breathable polyester staple fiber cloth; the preparation method of the fluidization cloth comprises the following steps:
s201, preparing raw materials, namely taking carbon fibers and master batches, and uniformly stirring and mixing to obtain a mixture for later use;
s202, merging and expanding the mixture, widening the mixed fibers by utilizing ultrasonic waves and an electromagnetic super effect, and ensuring that the mixed fiber tows are uniformly arranged in a specified range;
s203, winding the processed mixed fibers;
s204, gum dipping, namely releasing the mixed fiber roll, and uniformly dipping resin glue to ensure the positioning of the mixed fiber and roll the mixed fiber after gum dipping;
s205, slitting and coiling, namely slitting and coiling the mixed fiber cloth after gum dipping according to the width requirement;
s206, weaving, namely mounting the single-disc expanded tows on a weaving machine, weaving according to the specified requirements, and rolling the woven mixed fiber woven cloth;
and S207, shaping and cutting, wherein the mixed fiber woven fabric is shaped according to needs and cut according to the size to obtain a finished product of the fluidized fabric.
In this embodiment, the masterbatch comprises the following raw materials in parts by weight: 8 parts of low-density polyethylene, 18 parts of EVA (ethylene-vinyl acetate), 4 parts of lubricant, 4 parts of porous inorganic substance and 1 part of anti-aging agent; the EVA is selected from ethylene-vinyl acetate copolymer; the porous inorganic substance is selected from silicon dioxide.
In this embodiment, the preparation method of the masterbatch includes the following steps:
s301, sequentially adding low-density polyethylene, EVA, a lubricant and a porous inorganic substance in parts by weight into a high-speed mixing machine;
s302, stirring for 15 minutes;
s303, adding an anti-aging agent, stirring for 4 minutes, and discharging;
s304, granulating by using a double-screw extruder or an internal mixer, and discharging to obtain master batches.
In this embodiment, the stirring speed in S302 is 1500r/min, and the stirring speed in S303 is 700 r/min.
Example 2
The difference from example 1 is that:
the master batch comprises the following raw materials in parts by weight: 8-32 parts of low-density polyethylene, 36 parts of EVA (ethylene-vinyl acetate), 10 parts of lubricant, 12 parts of porous inorganic substance and 3 parts of anti-aging agent; the EVA is selected from ethylene-vinyl acetate copolymer; the porous inorganic substance is selected from diatomite.
In this embodiment, the preparation method of the masterbatch includes the following steps:
s301, sequentially adding low-density polyethylene, EVA, a lubricant and a porous inorganic substance in parts by weight into a high-speed mixing machine;
s302, stirring for 30 minutes;
s303, adding an anti-aging agent, stirring for 8 minutes, and discharging;
s304, granulating by using a double-screw extruder or an internal mixer, and discharging to obtain master batches.
In this embodiment, the stirring speed in S302 is 1000r/min, and the stirring speed in S303 is 500 r/min.
Example 3
The difference from example 2 is that:
the master batch comprises the following raw materials in parts by weight: 20 parts of low-density polyethylene, 20 parts of EVA (ethylene-vinyl acetate), 8 parts of lubricant, 8 parts of porous inorganic substance and 2 parts of anti-aging agent; the EVA is selected from ethylene-vinyl acetate copolymer; the porous inorganic substance is selected from zeolites.
In this embodiment, the preparation method of the masterbatch includes the following steps:
s301, sequentially adding low-density polyethylene, EVA, a lubricant and a porous inorganic substance in parts by weight into a high-speed mixing machine;
s302, stirring for 20 minutes;
s303, adding an anti-aging agent, stirring for 6 minutes, and discharging;
s304, granulating by using a double-screw extruder or an internal mixer, and discharging to obtain master batches.
In this embodiment, the stirring speed in S302 is 1200r/min, and the stirring speed in S303 is 600 r/min.
Example 4
The difference from example 3 is that:
the master batch comprises the following raw materials in parts by weight: 24 parts of low-density polyethylene, 24 parts of EVA (ethylene-vinyl acetate), 6 parts of lubricant, 6 parts of porous inorganic substance and 2 parts of anti-aging agent; the EVA is selected from ethylene-vinyl acetate copolymer; the porous inorganic substance is selected from silica, diatomite and zeolite.
In this embodiment, the preparation method of the masterbatch includes the following steps:
s301, sequentially adding low-density polyethylene, EVA, a lubricant and a porous inorganic substance in parts by weight into a high-speed mixing machine;
s302, stirring for 25 minutes;
s303, adding an anti-aging agent, stirring for 7 minutes, and discharging;
s304, granulating by using a double-screw extruder or an internal mixer, and discharging to obtain master batches.
In this embodiment, the stirring speed in S302 is 1300r/min, and the stirring speed in S303 is 550 r/min.
The principle of the method for modifying the ash conveying system comprises the following steps: after the desulfurization waste ash is transformed by the method, a large amount of accumulated pressure does not exist before the desulfurization waste ash falls into a new fluidization chute, and the desulfurization waste ash can be quickly conveyed into a waste ash bin under the combined action of fluidizing air, gravity and dust collecting air suction force of the ash bin, so that extrusion congestion is avoided, the condition that part of desulfurization ash is accumulated for a long time is reduced, the fluidization effect during ash discharge is improved, in addition, the convenience is brought to staff for maintenance, and the personal safety is improved; the fluidization step that makes through this application has the characteristics that high strength is wear-resistant, and the gas permeability is great.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The method for improving the ash conveying system is characterized by comprising the following steps of:
s1, transforming a fluidization chute, namely transforming the size of the fluidization chute into 280mm in height and 230mm in width;
s2, arranging fluidization cloth, wherein the position of the fluidization cloth is 92mm away from the bottom of the fluidization chute, the lower part of the fluidization cloth is provided with a fluidization air channel, and the upper layer of the fluidization cloth is an actual effective ash discharge space;
s3, mounting a fluidization chute, namely mounting the fluidization chute at a mounting inclination angle of 6 degrees;
and S4, conveying the desulfurized waste ash into the waste ash storage under the combined action of fluidizing air, gravity and dust collecting air suction force of the ash storage after the desulfurized waste ash falls into the fluidizing chute.
2. The method of claim 1, wherein the fluidization chute comprises a bottom plate and a side plate, and the side plate and the bottom plate are fixedly connected through a cutting and welding process.
3. The method for modifying an ash conveying system according to claim 2, wherein the cutting and welding process comprises the following specific steps:
s101, taking a raw material plate for manufacturing a bottom plate and raw material plates for a plurality of groups of side plates;
s102, cutting the raw material plates into required sizes by using a cutting machine respectively;
s103, arranging the bottoms of the groups of cut side plates on the outer surface of the cut bottom plate, and welding the bottom plates around the cut bottom plate by a welding machine;
and S104, welding and fixing the end parts of the plurality of groups of cut side plates.
4. The method for modifying an ash conveying system according to claim 1, wherein the fluidized bed is an air-permeable polyester staple fiber cloth.
5. The method for modifying an ash conveying system according to claim 4, wherein the method for preparing the fluidized cloth comprises the following steps:
s201, preparing raw materials, namely taking carbon fibers and master batches, and uniformly stirring and mixing to obtain a mixture for later use;
s202, merging and expanding the mixture, widening the mixed fibers by utilizing ultrasonic waves and an electromagnetic super effect, and ensuring that the mixed fiber tows are uniformly arranged in a specified range;
s203, winding the processed mixed fibers;
s204, gum dipping, namely releasing the mixed fiber roll, and uniformly dipping resin glue to ensure the positioning of the mixed fiber and roll the mixed fiber after gum dipping;
s205, slitting and coiling, namely slitting and coiling the mixed fiber cloth after gum dipping according to the width requirement;
s206, weaving, namely mounting the single-disc expanded tows on a weaving machine, weaving according to the specified requirements, and rolling the woven mixed fiber woven cloth;
and S207, shaping and cutting, wherein the mixed fiber woven fabric is shaped according to needs and cut according to the size to obtain a finished product of the fluidized fabric.
6. The improvement method of the ash conveying system according to claim 5, wherein the master batch comprises the following raw materials in parts by weight: 8-32 parts of low-density polyethylene, 18-36 parts of EVA (ethylene-vinyl acetate), 4-10 parts of lubricant, 4-12 parts of porous inorganic substance and 1-3 parts of anti-aging agent.
7. The method of claim 6, wherein the EVA is selected from ethylene-vinyl acetate copolymer.
8. The method for modifying an ash conveying system according to claim 6, wherein the porous inorganic substance is selected from one or more of silica, diatomite and zeolite.
9. The method for modifying an ash conveying system according to claim 6, wherein the method for preparing the master batch comprises the following steps:
s301, sequentially adding low-density polyethylene, EVA, a lubricant and a porous inorganic substance in parts by weight into a high-speed mixing machine;
s302, stirring for 15-30 minutes;
s303, adding an anti-aging agent, stirring for 4-8 minutes, and discharging;
s304, granulating by using a double-screw extruder or an internal mixer, and discharging to obtain master batches.
10. The method as claimed in claim 9, wherein the stirring speed in S302 is 1500r/min and the stirring speed in S303 is 700r/min and 1000-.
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