CN107233989B - Baking, grinding, spraying and burning integrated coal powder machine - Google Patents
Baking, grinding, spraying and burning integrated coal powder machine Download PDFInfo
- Publication number
- CN107233989B CN107233989B CN201710557538.6A CN201710557538A CN107233989B CN 107233989 B CN107233989 B CN 107233989B CN 201710557538 A CN201710557538 A CN 201710557538A CN 107233989 B CN107233989 B CN 107233989B
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- coal
- pipeline
- furnace
- conveying belt
- conveyor belt
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
- B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
Abstract
The invention provides a baking, grinding, spraying and burning integrated coal powder machine which comprises a feeding machine, wherein the feeding machine is connected with a conveying belt, the tail end of the conveying belt is connected to a coal bunker, the coal bunker is connected to a plurality of spiral screw machines through a plurality of discharging hoppers, the plurality of spiral screw machines are connected to a plurality of crushers, each crusher is connected to a coal powder furnace through a pipeline, and the baking, grinding, spraying and burning integrated coal powder machine further comprises a plurality of blowers, and each blower is connected with the pipeline through an air pipe and used for blowing coal materials to the coal powder furnace. The conveyor belt is characterized in that a fan housing is arranged above the conveyor belt and is provided with a heat energy air inlet and a heat energy air outlet respectively, a protective shed is further arranged on the outer side of the conveyor belt and is used for housing the conveyor belt, the fan housing is arranged in the protective shed, a plurality of coal ash collecting pipes are arranged at the bottom of the protective shed, and each coal ash collecting pipe is connected with a blower to collect coal ash. The invention saves cost, has simple structure, reduces failure rate, improves the safety of equipment in the use process, and is energy-saving and environment-friendly.
Description
Technical Field
The invention relates to the technical field of ceramic machinery, in particular to a baking, grinding, spraying and burning integrated pulverized coal machine.
Background
The most used ceramic hot blast stove is a coal water slurry stove and a chain grate stove. The coal water slurry furnace is characterized in that coal is ground into coal dust, 50% of water is added into the coal dust to be used as a mixed fuel for combustion, and the fuel consumes excessive energy to gasify water during combustion due to the fact that 50% of water is added into the fuel and the water content is high, so that the energy utilization rate is reduced, and more than 30% of energy is wasted; the chain grate furnace burns small coal in a chain grate rotating mode, and when the small coal burns, the general coal has heat energy of 5200-5500 large calorie under normal conditions, wherein about 1500 large calorie of heat energy burns incompletely, so that the energy waste is caused, the coal consumption is increased, and the production cost is increased; aiming at the combustion phenomenon of a ceramic hot blast stove, coal materials are required to be crushed and then sent to a coal powder furnace for combustion, the traditional method is that at the front end of conveying, coal is crushed into powder through a ball mill and then is placed in a coal powder storage tank, and then is conveyed to the coal powder furnace through a pipeline through a Raymond mill, the pipeline is long and even is as long as 200 meters, in addition, the water content of coal used in the south is about 11-12%, the water content of coal used in the north is about 10-11%, when the Raymond mill is used, the water content requirement on the coal is particularly high, the coal with the water content not higher than 6% can be used, the coal with the water content requirement of the coal is not up to standard, the coal is easy to be blocked and slag in the Raymond mill, when the pipeline is blocked, the pipeline is long, the overhaul is difficult, and the safety hidden danger exists during the overhaul; in addition, in the use, the pulverized coal storage tank is added, and the pulverized coal storage tank is easy to explode in a sealed state, so that the pulverized coal storage tank is a great potential safety hazard.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the baking, grinding, spraying and burning integrated pulverized coal machine which is cost-saving, simple in structure, low in failure rate, energy-saving and environment-friendly, and improves the safety of equipment in the use process.
In order to achieve the above purpose, the technical scheme provided by the invention is as follows: the utility model provides a baking, grinding, spraying and burning integrated coal powder machine, includes feeding machine, its characterized in that: the feeding machine is connected with a conveying belt, the tail end of the conveying belt is connected to a coal bunker, the coal bunker is connected to a plurality of screw machines through a plurality of discharging hoppers, the screw machines are connected to a plurality of crushers, each crusher is connected to a coal dust furnace through a pipeline, the feeding machine further comprises a plurality of blowers, and each blower is connected with the pipeline through an air pipe and used for blowing coal to the coal dust furnace.
Preferably, a fan cover is arranged above the conveyor belt to cover the conveyor belt, and the fan cover is respectively provided with a heat energy air inlet and a heat energy air outlet.
Preferably, a protection shed is further arranged on the outer side of the conveying belt to cover the conveying belt, the fan housing is located in the protection shed, a plurality of coal ash collecting pipes are arranged at the bottom of the protection shed, and each coal ash collecting pipe is connected with a blower to collect coal ash in the coal ash collecting pipe.
Preferably, a heater is arranged on the outer wall of each spiral screw machine.
Preferably, a plurality of the pipes are uniformly connected to the pulverized coal furnace so that pulverized coal is uniformly scattered into the pulverized coal furnace.
The invention has the following beneficial effects:
according to the invention, the conveying belt is adopted to convey the coal, so that the pipeline for conveying is shortened, the difficulty in overhauling the pipeline is avoided, the maintenance rate of equipment is reduced, an automatic drying device is additionally arranged at the same time of conveying, the coal is automatically dried, the dried coal is crushed, the water content of the coal is low, the coal is not easy to slag and block the pipeline, a fan housing is further arranged outside the conveying belt to prevent coal dust from drifting around, and a protective shed is further arranged at the periphery of the fan housing to ensure that the conveying belt is sealed and separated from other equipment, so that coal ash does not fly out of the protective shed, and a coal ash collecting pipe is arranged at the lower end of the protective shed to collect the coal ash; the coal material is crushed and then fed by the screw machine, and the blower is additionally arranged to blow the coal material during feeding, so that the feeding efficiency is improved, the accumulation of the coal material in a pipeline is reduced, the blockage is caused, a coal powder storage tank for placing coal powder is also omitted, the coal material is immediately pushed into a coal powder furnace for spraying and burning after being ground into powder, the potential safety hazard of the coal powder storage tank is avoided, in addition, the original ball mill is omitted, and the equipment cost is saved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
fig. 3 is a schematic view of the structure of the screw machine 31, the hopper 7 and the heater 71;
fig. 4 is a schematic structural view of the conveyor belt 2, the hood 21 and the protective shed 22;
in the figure: 1-feeding machine, 2-conveyer belt, 21-fan housing, 21 a-heat energy air inlet, 21 b-heat energy air outlet, 22-protection shed, 22 a-coal dust collecting pipe, 3-crusher, 31-screw machine, 4-pipeline, 5-coal dust furnace, 6-blower, 61-air pipe, 7-blanking hopper, 71-heater and 8-coal bunker.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments:
referring to fig. 1 to 4, a baking, grinding, spraying and burning integrated coal powder machine comprises a feeder 1, wherein the feeder 1 is connected with a conveying belt 2, the tail end of the conveying belt 2 is connected to a coal bin 8, a plurality of crushers 3 can be adopted for processing simultaneously in order to improve crushing efficiency, a plurality of discharging hoppers 7 are arranged at the tail end of the conveying belt 2 to divide coal materials into a plurality of screw machines 31, the coal materials are pushed to a plurality of crushers 3 through the screw machines 31 to be crushed, an electronic scale is additionally arranged at each discharging hopper 7 to weigh the coal quantity, and the crushers 3 crush the coal materials to 100-120 meshes because of potential safety hazards caused by too thin coal materials. In addition, in order to ensure the broken particle standard of the crusher 3, the discharging end of the feeder 1 is provided with a mesh screen for allowing the coal with the diameter smaller than 2cm to pass through, the tail end of the crusher 3 is connected to the pulverized coal furnace 5 through a pipeline 4, and the pulverized coal crusher further comprises a plurality of blowers 6, each blower 6 is connected with the pipeline 4 through an air pipe 61 for blowing the coal to the pulverized coal furnace 5, the plurality of pipelines 4 are preferably uniformly connected to the pulverized coal furnace 5, and the plurality of air pipes 61 can be respectively connected to each position of the pipeline 4, so that the blowers 6 can more effectively blow the coal from the pulverized coal furnace 5.
Specifically, a fan housing 21 is disposed above the conveyor belt 2 to cover the conveyor belt 2, the fan housing 21 is respectively provided with a heat energy air inlet 21a and a heat energy air outlet 21b, the heat energy air inlet 21a is filled with hot air, the coal in the conveyor belt 2 is dried, and the hot air is discharged from the heat energy air outlet 21b, so that the hot air can be conveniently obtained, an air outlet pipe can be externally connected in the pulverized coal furnace 5, the air outlet pipe is communicated with the heat energy air inlet 21a, and an induced draft fan is additionally arranged at the air outlet pipe, so that the hot air can be easily obtained.
In addition, in order to avoid the coal dust to fly around and make the working environment cleaner, a protection shed 22 is further arranged on the outer side of the conveying belt 2 to cover the coal dust, the wind cover 21 is positioned in the protection shed 22, and because the coal dust is easy to fly, the coal dust has a great influence on the health of a human body and serious environmental pollution, the protection shed 22 can well separate the coal dust from the conveying belt 2, in addition, in order to enable the collected coal dust to be timely disposed of and not to be accumulated in the conveying belt 2, a plurality of coal dust collecting pipes 22a are arranged at the bottom of the protection shed 22, each coal dust collecting pipe 22a is connected with a blower 6 for blowing the coal dust at the coal dust collecting pipe 22a into the coal dust furnace 5 to burn, so that the coal dust can be fully utilized, the waste is not caused, and the working environment is cleaner.
Specifically, in order to improve the drying effect, a heater 71 is provided on the outer wall of each screw machine 31, and the heater 71 may control the maximum temperature thereof by a temperature controller.
When the coal feeder works, coal from the feeder 1 enters the conveyer belt 2, the discharging end of the feeder 1 is provided with a mesh screen, the coal with the diameter smaller than 2cm passes through the conveyer belt 2, the conveyer belt 2 is provided with the fan housing 21 so as to be conveniently fed with hot air, the hot air enters from the heat energy air inlet 21a and dries the coal, the coal is discharged from the heat energy air outlet 21b, the dried coal falls into the coal bunker 8, the coal bunker 8 then passes through the plurality of screw machines 31 to send the coal into the plurality of crushers 3 for crushing processing, the outer wall of the screw machines 31 is provided with the heater 71 to heat the coal, the coal is dried and then enters the plurality of crushers 3 for crushing, the crushers 3 process the coal into powder, the pipeline 4 is blown by the blower 6, the coal of the pipeline 4 is blown into the coal furnace 5, in addition, a protection shed 22 is further built outside the working platform of the conveyer belt 2, the protection shed 22 and the air housing 21 are respectively arranged on the outer sides of the conveyer belt 2, and the protection shed 22 and the dust is fully separated from the coal furnace 2 by the blower housing 2, and the dust is fully collected from the dust is blown from the bottom of the coal furnace 2 by the blower housing 2, and the dust is fully prevented from being blown from the bottom of the coal furnace 2 by the protection shed 2.
The invention adopts the conveyor belt 2 to convey the coal, shortens the pipeline for conveying, reduces the maintenance rate of the pipeline, also avoids the difficulty of overhauling when the pipeline is blocked, simultaneously increases hot air drying while conveying the coal, increases the heater 71 at the screw machine 31 to dry the coal, ensures that the moisture content of the dried coal is 6-8 percent, ensures that the moisture content of the coal is low, and the dried coal is crushed and ground by the crusher 3, thus the crushed coal is not easy to slag and block the pipeline 4, has low failure rate, ensures the production efficiency, blows the coal by the blower 6 after crushing the coal, ensures that the blower 6 can be connected at a plurality of positions of the pipeline 4, has high feeding efficiency, reduces the accumulation of the coal in the pipeline 4 to cause the blocking, further saves the coal powder storage tank for placing the coal powder, and immediately feeds the coal into the coal powder furnace for combustion after grinding the coal powder, the coal dust storage tank has the advantages that potential safety hazards existing in the coal dust storage tank are avoided, meanwhile, the ball mill is not used any more, because the particle size of the ball mill is generally about 120-150 meshes, the potential safety hazards exist when the particle size is too small, the particle size is generally less than 200 meshes, the crusher can grind to 100-120 meshes, the dried coal is sufficiently small, the ball mill is omitted, the equipment cost is greatly saved, in addition, when the traditional coal water slurry is used, about 50% of water is needed to be added for use, and when the traditional coal water slurry is used, energy is needed to be vaporized, and the energy is not needed to be added in the vaporization process.
The above embodiments of the present invention are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, so variations in shape and principles of the present invention should be covered.
Claims (1)
1. The utility model provides a baking, grinding, spraying and burning integrated coal powder machine, includes feeding machine, its characterized in that: the feeding machine is connected with a conveying belt, the tail end of the conveying belt is connected to a coal bunker, the coal bunker is connected to a plurality of screw machines through a plurality of discharging hoppers, the screw machines are connected to a plurality of crushers, each crusher is connected to a pulverized coal furnace through a pipeline, the feeding machine further comprises a plurality of blowers, each blower is connected with the pipeline through an air pipe and used for blowing coal to the pulverized coal furnace, the air pipes are respectively connected to all positions of the pipeline, and the pipelines are uniformly connected to the pulverized coal furnace; a fan cover is arranged above the conveyor belt to cover the conveyor belt, and two ends of the fan cover are respectively provided with a heat energy air inlet and a heat energy air outlet; the pulverized coal furnace is externally connected with an air outlet pipe, the air outlet pipe is communicated with the heat energy air inlet, and an induced draft fan is additionally arranged at the air outlet pipe; the coal ash collecting device is characterized in that a protective shed is further arranged on the outer side of the conveying belt to cover the conveying belt, the fan housing is arranged in the protective shed, a plurality of coal ash collecting pipes are arranged at the bottom of the protective shed, and each coal ash collecting pipe is connected with a blower to collect coal ash in the coal ash collecting pipe and blow the coal ash into the pulverized coal furnace to burn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710557538.6A CN107233989B (en) | 2017-07-10 | 2017-07-10 | Baking, grinding, spraying and burning integrated coal powder machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710557538.6A CN107233989B (en) | 2017-07-10 | 2017-07-10 | Baking, grinding, spraying and burning integrated coal powder machine |
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| Publication Number | Publication Date |
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| CN107233989A CN107233989A (en) | 2017-10-10 |
| CN107233989B true CN107233989B (en) | 2023-09-22 |
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| CN201710557538.6A Active CN107233989B (en) | 2017-07-10 | 2017-07-10 | Baking, grinding, spraying and burning integrated coal powder machine |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107716081A (en) * | 2017-11-10 | 2018-02-23 | 无锡宇能选煤机械厂 | Possesses the belt coal pulverizer of hot drying function |
| CN108970794A (en) * | 2018-08-11 | 2018-12-11 | 中国电建集团贵州电力设计研究院有限公司 | A kind of anti-blocking coal breaker |
| CN114100782A (en) * | 2021-11-29 | 2022-03-01 | 北京丰润铭科贸有限责任公司 | Spindle-shaped deep pulverized coal grinding and power generation device |
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