CN111503654A - Efficient coal powder mixer and using method - Google Patents
Efficient coal powder mixer and using method Download PDFInfo
- Publication number
- CN111503654A CN111503654A CN202010371544.4A CN202010371544A CN111503654A CN 111503654 A CN111503654 A CN 111503654A CN 202010371544 A CN202010371544 A CN 202010371544A CN 111503654 A CN111503654 A CN 111503654A
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- Prior art keywords
- flange
- mixer
- coal
- coal powder
- guide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K3/00—Feeding or distributing of lump or pulverulent fuel to combustion apparatus
- F23K3/02—Pneumatic feeding arrangements, i.e. by air blast
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2201/00—Pretreatment of solid fuel
- F23K2201/50—Blending
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2203/00—Feeding arrangements
- F23K2203/20—Feeding/conveying devices
- F23K2203/201—Feeding/conveying devices using pneumatic means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses an efficient coal powder mixer, which comprises a pipeline and a coal powder mixer shell, wherein the end part of the coal powder mixer shell is provided with first flanges which are symmetrically distributed, the pipeline is provided with a second flange matched with the first flange, the second flange and the first flange are provided with a guide assembly, the guide assembly comprises a fixed block, a fixed port, a guide groove, an insertion block and a guide pillar, the surface of the first flange is provided with the guide groove, and the fixed block is fastened in the guide groove; the invention also discloses a use method of the high-efficiency pulverized coal mixer; the invention has the beneficial effects that: by the designed guide assembly, the guide of the second flange and the first flange during connection is increased, so that the second flange and the first flange are fastened more quickly through bolts; the inner walls of the powder falling pipe and the shell of the coal powder mixer are fixed with ceramics, so that the wear-resisting effect is further improved, the labor intensity of operators is reduced, and the economic benefit is further improved.
Description
Technical Field
The invention belongs to the technical field of pulverized coal mixers, and particularly relates to an efficient pulverized coal mixer and a using method of the pulverized coal mixer.
Background
The coal powder mixer is one of the devices arranged on the coal powder wear-resistant pipeline of the coal-fired boiler and is applied to a coal conveying system of an intermediate storage type coal-fired boiler. The coal powder injection device is important equipment for conveying coal powder in an injection tank to a blast furnace in a blast furnace coal injection system, and is used for uniformly mixing the coal powder and compressed air.
The structural form of the coal powder mixer determines whether the coal powder and the compressed air can be uniformly mixed, the concentration of the conveyed coal powder and the use benefit of the mixed coal powder. The uneven mixing of the pulverized coal affects the operation of the boiler, and even the coal breaking phenomenon can be generated in serious conditions, so that the operation parameters of the boiler are unstable, the air pressure and the air temperature are reduced, and the load is forced to be reduced in a short time. The full negative pressure coal powder mixer is the main product of the boiler coal powder pipeline. Principle of full negative pressure coal powder mixer: the original double-layer supporting plate is changed into a single supporting plate, and an arc-shaped wear-resisting plate is added on the rear wall of the joint of the powder dropping pipe and the mixer, so that primary air flowing through has a drainage effect on the powder dropping pipe, and the powder supporting phenomenon is thoroughly eliminated. The full negative pressure pulverized coal mixer is widely used as a high efficiency mixer.
When the pulverized coal mixer is connected by using a flange, the guiding is lacked, and the connecting efficiency is reduced.
Disclosure of Invention
The invention aims to provide a high-efficiency coal powder mixer and a using method thereof, and aims to solve the problems that the coal powder mixer in the background art is lack of guide and the connecting efficiency is reduced when flange connection is used.
In order to achieve the purpose, the invention provides the following technical scheme: the end of the coal powder mixer shell is provided with first flanges which are symmetrically distributed, the pipeline is provided with second flanges matched with the first flanges, the second flanges and the first flanges are provided with guide assemblies, each guide assembly comprises a fixing block, a fixing port, a guide groove, an insert block and a guide pillar, the surface of each first flange is provided with the guide groove, the fixing block is fastened inside the guide groove, the surface of each fixing block is provided with the fixing port, the second flange is provided with the guide pillar capable of being placed in the guide groove, and the guide pillar is provided with the insert block matched with the fixing port.
As a preferable technical solution of the present invention, the two guide grooves are provided, and the two guide grooves are symmetrically distributed.
As a preferable technical scheme of the invention, the fixing block is of a cuboid structure, and a fixing opening is formed in the middle of the side surface of the fixing block.
As a preferable technical solution of the present invention, the guide post is a U-shaped structure with an opening facing one side, and the cross section of the insertion block is trapezoidal.
The powder mixing device comprises a shell, a powder mixing device shell and a powder falling pipe, wherein the shell is provided with a plurality of holes, and the powder falling pipe is arranged on the shell and communicated with the powder mixing device shell.
As a preferable technical scheme of the invention, the powder dropping pipe and the shell of the coal powder mixer are cast by rare earth wear-resistant alloy; the coal powder mixer is characterized in that a single supporting plate is installed on the shell of the coal powder mixer, and an arc-shaped wear-resisting plate is arranged on the rear wall of the joint of the powder falling pipe and the shell of the coal powder mixer.
In a preferred embodiment of the present invention, the powder dropping pipe and the inner wall of the casing of the coal powder mixer are fixed with ceramic.
The invention also discloses a use method of the efficient coal powder mixer, which comprises the following steps:
the method comprises the following steps: inserting a guide post on the second flange into a guide groove on the first flange, inserting an insertion block on the guide post into a fixing hole on the fixing block, increasing the guide when the second flange is connected with the first flange, and fastening the second flange with the first flange through a bolt;
step two: the pulverized coal from the powder feeder falls into a powder dropping pipe and falls into a shell of a pulverized coal mixer through the powder dropping pipe;
step three: enters the hearth under the carrying of the powder feeding air.
Compared with the prior art, the invention has the beneficial effects that:
(1) by the designed guide assembly, the guide of the second flange and the first flange during connection is increased, so that the second flange and the first flange are fastened more quickly through bolts;
(2) the inner walls of the powder falling pipe and the shell of the coal powder mixer are fixed with ceramics, so that the wear-resisting effect is further improved, the labor intensity of operators is reduced, and the economic benefit is further improved.
Drawings
FIG. 1 is a schematic structural diagram of embodiment 1 of the present invention;
FIG. 2 is an enlarged view of the area D of FIG. 1 according to the present invention;
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 5 is a schematic diagram of the structure of the M region in FIG. 4 according to the present invention;
in the figure: 1. a powder dropping pipe; 2. a first flange; 3. a second flange; 4. a pipeline; 5. a pulverized coal mixer housing; 6. a fixed block; 7. a fixed port; 8. a guide groove; 9. inserting a block; 10. a guide post; 11. a ceramic; 12. a magnet I; 13. a groove; 14. a protrusion; 15. and a second magnet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, fig. 2 and fig. 3, the present invention provides a technical solution: a high-efficiency coal powder mixer comprises a pipeline 4 and a coal powder mixer shell 5, wherein the end part of the coal powder mixer shell 5 is provided with first flanges 2 which are symmetrically distributed, the pipeline 4 is provided with a second flange 3 which is matched with the first flange 2, the second flange 3 and the first flange 2 are provided with guide components, each guide component comprises a fixed block 6, a fixed port 7, a guide groove 8, an insert block 9 and a guide pillar 10, the surface of the first flange 2 is provided with the guide groove 8, the fixed block 6 is fastened in the guide groove 8, the surface of the fixed block 6 is provided with the fixed port 7, the second flange 3 is provided with the guide pillar 10 which can be placed in the guide groove 8, and the guide pillar 10 is provided with the insert block 9 which is matched with the fixed port 7; two guide grooves 8 are formed, and the two guide grooves 8 are symmetrically distributed; the fixing block 6 is of a cuboid structure, and a fixing opening 7 is formed in the middle of the side surface of the fixing block 6; the guide post 10 is of a U-shaped structure with an opening facing one side, and the section of the insertion block 9 is trapezoidal; the guide post 10 on the second flange 3 is inserted into the guide groove 8 on the first flange 2, the trapezoidal insertion block 9 on the guide post 10 is inserted into the fixing port 7 on the fixing block 6, the guiding direction when the second flange 3 is connected with the first flange 2 is increased, and the second flange 3 and the first flange 2 are fastened more quickly through bolts.
In this embodiment, it is preferable that the pulverized coal mixer further includes a pulverized coal dropping pipe 1, the pulverized coal dropping pipe 1 is disposed on the pulverized coal mixer housing 5, the pulverized coal dropping pipe 1 is communicated with the inside of the pulverized coal mixer housing 5, and the pulverized coal falls into the pulverized coal dropping pipe 1 and falls into the pulverized coal mixer housing 5 through the pulverized coal dropping pipe 1 for transportation.
In the embodiment, the powder dropping pipe 1 and the coal powder mixer shell 5 are preferably cast by rare earth wear-resistant alloy, which is beneficial to prolonging the service life; the single supporting plate is arranged on the shell 5 of the coal powder mixer, and the arc-shaped wear-resisting plate is arranged on the rear wall of the joint of the powder falling pipe 1 and the shell 5 of the coal powder mixer, so that primary air flowing through can have a drainage effect on the powder falling pipe 1, and the powder supporting phenomenon can be thoroughly eliminated.
In the embodiment, preferably, the ceramic 11 is fixed on the inner walls of the powder dropping pipe 1 and the coal powder mixer shell 5, which is beneficial to further increasing the wear-resisting effect, reducing the labor intensity of operators and further improving the economic benefit.
A use method of an efficient coal powder mixer comprises the following steps:
the method comprises the following steps: inserting a guide post 10 on the second flange 3 into a guide groove 8 on the first flange 2, inserting an insertion block 9 on the guide post 10 into a fixing port 7 on the fixing block 6, increasing the guide when the second flange 3 is connected with the first flange 2, and fastening the second flange 3 with the first flange 2 through bolts;
step two: the coal powder from the powder feeder falls into a powder dropping pipe 1 and falls into a shell 5 of a coal powder mixer through the powder dropping pipe 1;
step three: enters the hearth under the carrying of the powder feeding air.
Example 2
Referring to fig. 3, fig. 4 and fig. 5, the present invention provides a technical solution: a high-efficiency coal powder mixer comprises a pipeline 4 and a coal powder mixer shell 5, wherein a first flange 2 which is symmetrically distributed is arranged at the end part of the coal powder mixer shell 5, a second flange 3 which is matched with the first flange 2 is arranged on the pipeline 4, a guide component is arranged on the second flange 3 and the first flange 2, the guide component comprises a first magnet 12, a groove 13, a bulge 14 and a second magnet 15, the surface of the first flange 2 is provided with the groove 13, the first magnet 12 which is symmetrically distributed is fixed in the groove 13, the second flange 3 is provided with the bulge 14 which can be arranged in the groove 13, the end part of the bulge 14 is fixed with the second magnet 15 which can be adsorbed with the first magnet 12, the bulge 14 on the second flange 3 is inserted into the groove 13 on the first flange 2, the second magnet 15 at the end part of the bulge 14 is adsorbed with the first magnet 12 in the groove 13, and the guide when the second flange 3 is connected with the first flange 2 is increased, so that the fastening of the second flange 3 and the first flange 2 by means of bolts is faster.
In this embodiment, it is preferable that the pulverized coal mixer further includes a pulverized coal dropping pipe 1, the pulverized coal dropping pipe 1 is disposed on the pulverized coal mixer housing 5, the pulverized coal dropping pipe 1 is communicated with the inside of the pulverized coal mixer housing 5, and the pulverized coal falls into the pulverized coal dropping pipe 1 and falls into the pulverized coal mixer housing 5 through the pulverized coal dropping pipe 1 for transportation.
In the embodiment, the powder dropping pipe 1 and the coal powder mixer shell 5 are preferably cast by rare earth wear-resistant alloy, which is beneficial to prolonging the service life; the single supporting plate is arranged on the shell 5 of the coal powder mixer, and the arc-shaped wear-resisting plate is arranged on the rear wall of the joint of the powder falling pipe 1 and the shell 5 of the coal powder mixer, so that primary air flowing through can have a drainage effect on the powder falling pipe 1, and the powder supporting phenomenon can be thoroughly eliminated.
In the embodiment, preferably, the ceramic 11 is fixed on the inner walls of the powder dropping pipe 1 and the coal powder mixer shell 5, which is beneficial to further increasing the wear-resisting effect, reducing the labor intensity of operators and further improving the economic benefit.
A use method of an efficient coal powder mixer comprises the following steps:
the method comprises the following steps: inserting the protrusion 14 on the second flange 3 into the groove 13 on the first flange 2, enabling the second magnet 15 at the end of the protrusion 14 to be adsorbed to the first magnet 12 in the groove 13, increasing the guiding of the second flange 3 when being connected with the first flange 2, and fastening the second flange 3 and the first flange 2 through bolts;
step two: the coal powder from the powder feeder falls into a powder dropping pipe 1 and falls into a shell 5 of a coal powder mixer through the powder dropping pipe 1;
step three: enters the hearth under the carrying of the powder feeding air.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides an efficient coal powder blender, includes pipeline (4) and coal powder blender casing (5), the tip of coal powder blender casing (5) is provided with first flange (2) of symmetric distribution, be provided with on pipeline (4) with first flange (2) assorted second flange (3), its characterized in that: the guide assembly is arranged on the second flange (3) and the first flange (2) and comprises a fixing block (6), a fixing port (7), a guide groove (8), an insert block (9) and a guide pillar (10), the guide groove (8) is formed in the surface of the first flange (2), the fixing block (6) is fastened in the guide groove (8), the fixing port (7) is formed in the surface of the fixing block (6), the guide pillar (10) capable of being placed in the guide groove (8) is arranged on the second flange (3), and the insert block (9) matched with the fixing port (7) is arranged on the guide pillar (10).
2. A high efficiency coal powder mixer as set forth in claim 1 wherein: two guide slots (8) are formed, and the two guide slots (8) are symmetrically distributed.
3. A high efficiency coal powder mixer as set forth in claim 1 wherein: the fixing block (6) is of a cuboid structure, and a fixing opening (7) is formed in the middle of the side surface of the fixing block (6).
4. A high efficiency coal powder mixer as set forth in claim 1 wherein: the guide post (10) is of a U-shaped structure with an opening facing one side, and the section of the insertion block (9) is trapezoidal.
5. A high efficiency coal powder mixer as set forth in claim 1 wherein: the pulverized coal mixer is characterized by further comprising a pulverized coal dropping pipe (1), wherein the pulverized coal dropping pipe (1) is arranged on the pulverized coal mixer shell (5), and the pulverized coal dropping pipe (1) is communicated with the inside of the pulverized coal mixer shell (5).
6. A high efficiency coal powder mixer as set forth in claim 5 wherein: the powder dropping pipe (1) and the coal powder mixer shell (5) are cast by rare earth wear-resistant alloy; the coal powder mixer is characterized in that a single supporting plate is arranged on the coal powder mixer shell (5), and an arc-shaped wear-resisting plate is arranged on the rear wall of the joint of the powder falling pipe (1) and the coal powder mixer shell (5).
7. A high efficiency coal powder mixer as set forth in claim 6 wherein: and ceramics (11) are fixed on the inner walls of the powder falling pipe (1) and the coal powder mixer shell (5).
8. The use of a high efficiency coal powder mixer as claimed in any one of claims 1 to 7, wherein: the using method comprises the following steps:
the method comprises the following steps: inserting a guide post (10) on the second flange (3) into a guide groove (8) on the first flange (2), inserting an inserting block (9) on the guide post (10) into a fixing hole (7) on a fixing block (6), increasing the guide when the second flange (3) is connected with the first flange (2), and fastening the second flange (3) with the first flange (2) through bolts;
step two: the pulverized coal from the powder feeder falls into the powder dropping pipe (1) and falls into the shell (5) of the pulverized coal mixer through the powder dropping pipe (1);
step three: enters the hearth under the carrying of the powder feeding air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010371544.4A CN111503654A (en) | 2020-05-04 | 2020-05-04 | Efficient coal powder mixer and using method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010371544.4A CN111503654A (en) | 2020-05-04 | 2020-05-04 | Efficient coal powder mixer and using method |
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| Publication Number | Publication Date |
|---|---|
| CN111503654A true CN111503654A (en) | 2020-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010371544.4A Pending CN111503654A (en) | 2020-05-04 | 2020-05-04 | Efficient coal powder mixer and using method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2701535A1 (en) * | 1993-02-16 | 1994-08-19 | Tecmi | Device for coupling pipes, especially pipes used for the pneumatic transportation of powdery products |
| CN204805781U (en) * | 2015-08-12 | 2015-11-25 | 张素香 | Novel flange connects |
| CN205781556U (en) * | 2016-06-23 | 2016-12-07 | 中国石油天然气股份有限公司 | Sealing flange |
| CN108592076A (en) * | 2018-04-02 | 2018-09-28 | 安徽蓝天盈丰环保科技有限公司 | Injection type coal, pulverulent fuel mixer with negative pressure regulatory function and coal dust mixed method |
| CN208041384U (en) * | 2018-03-02 | 2018-11-02 | 无锡雷迪特换热器有限公司 | A kind of connecting tube applied to heat exchanger |
| CN208237289U (en) * | 2018-05-29 | 2018-12-14 | 常州凌天环境科技有限公司 | A kind of increase in pipeline connecting flange of good seal performance |
| CN209100829U (en) * | 2018-07-24 | 2019-07-12 | 山东淄博汉能薄膜太阳能有限公司 | Flange assembly |
-
2020
- 2020-05-04 CN CN202010371544.4A patent/CN111503654A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2701535A1 (en) * | 1993-02-16 | 1994-08-19 | Tecmi | Device for coupling pipes, especially pipes used for the pneumatic transportation of powdery products |
| CN204805781U (en) * | 2015-08-12 | 2015-11-25 | 张素香 | Novel flange connects |
| CN205781556U (en) * | 2016-06-23 | 2016-12-07 | 中国石油天然气股份有限公司 | Sealing flange |
| CN208041384U (en) * | 2018-03-02 | 2018-11-02 | 无锡雷迪特换热器有限公司 | A kind of connecting tube applied to heat exchanger |
| CN108592076A (en) * | 2018-04-02 | 2018-09-28 | 安徽蓝天盈丰环保科技有限公司 | Injection type coal, pulverulent fuel mixer with negative pressure regulatory function and coal dust mixed method |
| CN208237289U (en) * | 2018-05-29 | 2018-12-14 | 常州凌天环境科技有限公司 | A kind of increase in pipeline connecting flange of good seal performance |
| CN209100829U (en) * | 2018-07-24 | 2019-07-12 | 山东淄博汉能薄膜太阳能有限公司 | Flange assembly |
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Application publication date: 20200807 |
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