CN111578261A - Bottom material laying chain-row type hot blast stove and operation method thereof - Google Patents
Bottom material laying chain-row type hot blast stove and operation method thereof Download PDFInfo
- Publication number
- CN111578261A CN111578261A CN202010432430.6A CN202010432430A CN111578261A CN 111578261 A CN111578261 A CN 111578261A CN 202010432430 A CN202010432430 A CN 202010432430A CN 111578261 A CN111578261 A CN 111578261A
- Authority
- CN
- China
- Prior art keywords
- hot blast
- coal
- grate
- feeding bin
- blast stove
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000003245 coal Substances 0.000 claims abstract description 106
- 239000002893 slag Substances 0.000 claims abstract description 50
- 238000012216 screening Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 239000012212 insulator Substances 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 description 8
- 239000003818 cinder Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B30/00—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber
- F23B30/02—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts
- F23B30/06—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts with fuel supporting surfaces that are specially adapted for advancing fuel through the combustion zone
- F23B30/08—Combustion apparatus with driven means for agitating the burning fuel; Combustion apparatus with driven means for advancing the burning fuel through the combustion chamber with movable, e.g. vibratable, fuel-supporting surfaces; with fuel-supporting surfaces that have movable parts with fuel supporting surfaces that are specially adapted for advancing fuel through the combustion zone with fuel-supporting surfaces that move through the combustion zone, e.g. with chain grates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B40/00—Combustion apparatus with driven means for feeding fuel into the combustion chamber
- F23B40/06—Combustion apparatus with driven means for feeding fuel into the combustion chamber the fuel being fed along the fuel-supporting surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/02—Apparatus for removing ash, clinker, or slag from ash-pits, e.g. by employing trucks or conveyors, by employing suction devices
-
- 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
- F23K3/22—Controlling thickness of fuel bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/027—Air heaters with forced circulation using solid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
- F24H9/1877—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/189—Arrangement or mounting of combustion heating means, e.g. grates or burners using solid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23K—FEEDING FUEL TO COMBUSTION APPARATUS
- F23K2203/00—Feeding arrangements
- F23K2203/008—Feeding devices for pulverulent fuel
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture Of Iron (AREA)
Abstract
The invention discloses a bottom material laying chain-row type hot blast stove and an operation method thereof, relating to the technical field of hot blast stoves and comprising the following steps: the hot blast stove comprises a hot blast stove body, wherein a feeding bin is arranged at the front end of the hot blast stove body and is perpendicular to the front end of the grate conveyor belt, and a pulverized coal feeding bin and a bedding material feeding bin are arranged in the feeding bin. The furnace slag bedding materials in the bedding bottom feeding bin are paved on the grate conveyor belt to serve as the bedding materials, after the furnace slag bedding materials are paved, a coal bed is paved on the grate conveyor belt through the pulverized coal feeding bin, even if coal is burnt to the bottom, the coal is only contacted with the furnace slag bedding materials on the grate conveyor belt and is not directly contacted with the grate conveyor belt, a thermal insulator is equivalently arranged between the grate conveyor belt and the coal, the direct high-temperature transmission of the coal to the grate conveyor belt is effectively separated, the grate and the driving sheet are prevented from being burnt and broken, hot blast stove parts such as the grate, the driving sheet and the long pin are protected, the service life of the parts is prolonged, and the continuous operation rate of the chain-type hot blast stove is improved.
Description
Technical Field
The invention relates to the technical field of hot blast stoves, in particular to a bottom material laying chain-row type hot blast stove and an operation method thereof.
Background
The chain grate type hot blast stove used at present is a hot blast stove which takes small coal blocks with the particle diameter smaller than phi 25mm and powdery loose coal as fuels and directly distributes the coal on a chain grate stoker grate to fire the coal.
The existing chain grate furnace has the following defects: (1) the fire grate is easy to burn out, and as the fire coal is directly spread on the fire grate to burn, the last fire layer directly contacts with the fire grate along with the combustion of the fuel layer. The grate is most susceptible to heating or overheating. After long-term heating, the fire grate will burn out, so that the furnace is shut down and the fire grate is replaced. More expensive refractory cast iron has to be used instead of the gray cast iron grate in order to increase the life of the grate. But the burning loss of the fire grate can not be got rid of due to the inherent defect of direct coal spreading and burning of the fire grate of the chain grate furnace. (2) The active piece is burnt or broken, the active piece is a part for linking the fire grate, and the chain row is arranged on the same plane. The fire layer of the fuel layer can also directly contact with the active sheet of the linked fire grate, so that the active sheet is damaged and broken due to overheating. (3) The long pin is deformed or broken due to thermal fatigue, and the long pin linking the driving sheet and the grate is also deformed and broken due to thermal fatigue after being heated for a long time. (4) The wind box burns out, and the fire layer directly falls to the wind box for burning after the chain row is broken, so that the wind box can be burnt and leaked. (5) Any one of the components needs to be shut down for replacement, the period of the replacement is 5-7 days, shutdown and start-up cost is increased besides production shutdown in subsequent processes, production efficiency is low, and maintenance cost is high.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a bottom material laying chain grate type hot blast stove and an operation method thereof, so as to solve the problems that in the prior art, chain grate furnace components are easy to damage and have short service life.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a bedding material chain row type hot blast stove comprises: the hot blast stove comprises a hot blast stove body, wherein a grate conveyor belt is arranged in the hot blast stove body along the length direction of the hot blast stove body, a feeding bin which is perpendicular to the front end of the grate conveyor belt is arranged at the front end of the hot blast stove body, a pulverized coal feeding bin and a bedding material feeding bin are arranged in the feeding bin, a coal bed thickness adjusting device is arranged in the pulverized coal feeding bin, a bedding material thickness adjusting device is arranged in the bedding material feeding bin, and a slag pit is vertically arranged below the rear end of the grate conveyor belt; band conveyer, band conveyer one end is equipped with discharge apparatus, discharge apparatus sets up feeding storehouse upper end, the band conveyer other end is equipped with the hopper of vertical setting, the hopper both sides are equipped with fine coal feeder and bedding material feeder respectively, fine coal feeder with bedding material feeder all through feeder conveyor belt with the feed inlet of hopper links to each other.
Further, fine coal thickness adjusting device includes coal seam thickness adjusting plate and fine coal thickness adjusting rod, the vertical setting of coal seam thickness adjusting plate is in keep away from in the fine coal feeding storehouse bed charge feeding storehouse one side, fine coal thickness adjusting rod vertical rotation is worn to establish on the coal seam thickness adjusting plate, and is located fine coal feeding storehouse upper end.
Furthermore, a material baffle plate is arranged on one side of the lower end of the coal seam thickness adjusting plate.
Further, the bedding material thickness adjusting device comprises a bedding material thickness adjusting plate and a bedding material thickness adjusting rod, one side of the bedding material thickness adjusting plate is tightly attached to the inner wall of the bedding material feeding bin, one end of the bedding material thickness adjusting rod is connected with the upper end of the bedding material thickness adjusting plate, and the other end of the bedding material thickness adjusting rod extends to the upper end of the bedding material feeding bin.
Furthermore, a hot air flue communicated with the interior of the hot air furnace body is arranged on the hot air furnace body.
Further, a slag screening machine is connected between the slag falling pit and the bedding material feeder through a conveying belt.
The invention provides a method for operating a bottom-laying chain-grate hot blast stove, which comprises the steps of firstly laying the slag bottom-laying materials in a bottom-laying feeding bin on a grate conveyor belt to serve as bottom materials before the grate conveyor belt spreads the coal, then discharging the materials through a pulverized coal feeding bin, laying the fire coal on the bottom materials formed by the slag bottom-laying materials, feeding the fire coal and the slag bottom-laying materials which are burnt into a slag falling pit along with the grate conveyor belt, screening the fire coal and the slag bottom-laying materials through a slag screening machine, and feeding the slag bottom-laying materials with the diameter of 10mm-25mm into the bottom-laying feeding bin through a conveying belt for recycling.
The technical scheme of the invention has the following advantages:
because the feeding bin is internally provided with the pulverized coal feeding bin and the bedding material feeding bin, the pulverized coal feeding bin is internally provided with the coal bed thickness adjusting device, and the bedding material thickness adjusting device is arranged in the bedding material feeding bin, before the grate conveyor belt spreads the coal, the furnace slag bottom material in the bottom-laying feeding bin is laid on the grate conveyor belt to be used as the bottom material, after the slag bedding material is paved, a coal layer is paved on the grate conveyor belt through the pulverized coal feeding bin, so that even if the coal is burnt to the bottom, the coal is only contacted with the slag bedding material on the grate conveyor belt and is not directly contacted with the grate conveyor belt, the heat insulation body is arranged between the grate conveyor belt and the fire coal, so that direct high-temperature transmission of the fire coal to the grate conveyor belt is effectively prevented, the grate and the driving sheet are prevented from being burnt and broken, hot blast stove components such as the grate, the driving sheet and the long pin are protected, the service life of the components is prolonged, and the continuous operation rate of the chain-grate hot blast stove is improved.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic cross-sectional view taken along the direction A in FIG. 1;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a flow chart illustrating the operation method of the present invention.
In the figure, 10 is a hot blast stove body, and 11 is a grate conveyor belt; 12-a feeding bin; 13-a pulverized coal feeding bin; 131-coal seam thickness adjusting plate; 132-pulverized coal thickness adjusting rod; 133-a striker plate; 14-paving a bottom material feeding bin; 141-a bottom material laying thickness adjusting plate; 142-bedding material thickness adjusting rod; 15-a slag falling pit; 16-hot air flue; 20-a belt conveyor; 21-a discharge device; 22-a receiving hopper; 30-pulverized coal feeder; 40-a bottom material laying feeder; and (5) 50-a slag sieving machine.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 4, a bedding chain grate type hot blast stove includes: a hot blast stove body 10 and a belt conveyor 20. Wherein, a fire grate conveyor belt 11 arranged along the length direction of the hot-blast stove body 10 is arranged in the hot-blast stove body, and the fire grate conveyor belt 11 is formed by connecting a fire grate, a driving sheet and a long pin; be equipped with the feeding storehouse 12 that perpendicular to grate conveyer belt 11 front end set up at hot-blast furnace body 10 front end, be equipped with fine coal feeding storehouse 13 and bedding material feeding storehouse 14 in the feeding storehouse 12, be equipped with coal seam thickness adjusting device in the fine coal feeding storehouse 13, be used for the control to get into the coal seam thickness on the grate conveyer belt 11, be equipped with bedding material thickness adjusting device in the bedding material feeding storehouse 12, be used for the control to get into the slag bedding material thickness on the grate conveyer belt 11, the perpendicular below of grate conveyer belt 11 rear end is equipped with the cinder pit 15 that falls, the cinder that will burn out is sent into the cinder pit 15 that falls and is collected.
One end of the belt conveyor 20 is provided with a discharging device 21, the discharging device 21 is a lifting slag discharger, and the discharging device 21 is arranged at the upper end of the feeding bin 12 and is used for conveying the coal and the slag bedding material to the pulverized coal feeding bin 13 and the bedding material feeding bin 14 respectively. When the belt conveyor 20 conveys the bed charge, the discharge device 21 falls, and the bed charge on the belt conveyor 20 falls into the bed charge feed bin 14. When the belt conveyor 20 conveys the coal, the discharging device 21 is lifted up, and the coal falls into the pulverized coal feeding bin 13.
The other end of the belt conveyor 20 is provided with a vertically arranged receiving hopper 22, two sides of the receiving hopper 22 are respectively provided with a pulverized coal feeder 30 and a bedding material feeder 40, and the pulverized coal feeder 30 and the bedding material feeder 40 are both connected with a feed inlet of the receiving hopper 22 through a conveyor belt of the feeder. During specific conveying, the conveying of the bedding material feeding bin 12 and the conveying of the pulverized coal feeding bin 13 share a set of receiving hopper 22 and a feeder conveying belt, and the bedding material feeder is electrically interlocked with the pulverized coal feeder 30 and the discharging device 21 and is controlled by a program. When the bed charge feeder is started, the slag bed charge is fed by the feeder conveyor belt, and at this time, the discharge device 21 automatically falls to discharge the slag bed charge into the bed charge feed bin 12. After the bedding material feeding bin 12 is full, the conveyor belt of the feeder stops working, and the discharging device 21 is automatically lifted. The pulverized coal feeder 30 operates to start conveying pulverized coal, and circulates in sequence to finish the slag bedding material and the conveying of the pulverized coal.
In this embodiment, fine coal thickness adjusting device includes coal seam thickness adjusting plate 131 and fine coal thickness adjusting rod 132, and the vertical setting of coal seam thickness adjusting plate 131 is in fine coal feeding storehouse 13 and is kept away from bedding material feeding storehouse 14 one side, and fine coal thickness adjusting rod 132 vertical rotation is worn to establish on coal seam thickness adjusting plate 131 to be located fine coal feeding storehouse 13 upper end. This fine coal thickness adjusting rod 132 is adjusting screw, and includes adjusting nut and hand wheel, and adjusting nut fixes on fine coal feeding storehouse upper portion, drives coal seam thickness adjusting plate 131 through rotating the hand wheel of fine coal thickness adjusting rod 132 upper end and reciprocates in fine coal feeding storehouse 13 and goes up and down, controls the thickness of laying of fine coal feeding.
Wherein, coal seam thickness regulating plate 131 lower extreme one side is equipped with striker plate 133, and this striker plate 133's cross section is isosceles triangle, prevents to let the direct whereabouts of fine coal in fine coal feeding storehouse 13, the laying thickness of better control fine coal feeding.
In this embodiment, the bedding material thickness adjusting means includes a bedding material thickness adjusting plate 141 and a bedding material thickness adjusting rod 142, one side of the bedding material thickness adjusting plate 141 is disposed to be closely attached to the inner wall of the bedding material feeding bin 14, one end of the bedding material thickness adjusting rod 142 is connected to the upper end of the bedding material thickness adjusting plate 141, and the other end of the bedding material thickness adjusting rod 142 extends to the upper end of the bedding material feeding bin 12. The bedding material thickness adjusting rod 142 is an adjusting screw rod and comprises an adjusting nut and a hand wheel, the adjusting nut is fixed on the upper portion of the pulverized coal feeding bin, and the hand wheel at the upper end of the bedding material thickness adjusting rod 142 is rotated to drive the bedding material thickness adjusting plate 141 to move up and down in the bedding material feeding bin 14 so as to control the auxiliary thickness of the slag bedding material.
In this embodiment, the hot blast stove body 10 is provided with a hot blast flue 16 communicated with the inside thereof, and the hot blast flue 16 is connected to the drying furnace.
In this embodiment, a slag screening machine 50 is connected between the slag pit 15 and the bed charge feeder 40 via a conveyor belt, so that the burned-out slag can fall into the slag pit 15, be removed by a slag remover and be conveyed to the slag screening machine 50 for screening and then be used as a bed charge.
The invention provides a method for operating a bottom-laying chain-grate hot blast stove, which comprises the steps of firstly laying the slag bottom-laying materials in a bottom-laying feeding bin 12 on a grate conveyor belt 11 as bottom materials before the grate conveyor belt 11 lays coal, then discharging the materials through a pulverized coal feeding bin 13, laying the fire coal on the bottom materials formed by the slag bottom-laying materials, feeding the fire coal and the slag bottom-laying materials which are completely combusted into a slag falling pit 15 along with the grate conveyor belt 11, screening the fire coal and the slag bottom-laying materials through a slag screening machine 50, and feeding the slag bottom-laying materials with the diameter of 10mm-25mm into the bottom-laying feeding bin 12 through a conveying belt for recycling.
Wherein, the thickness that the slag bed charge was laid should be less than or equal to 50mm, the thickness of laying of coal seam is between 100mm to 180mm, make when the coal-fired emergence is abundant heat energy, can also effectual protection grate conveyer belt 11, even if the coal burns to the bottom like this, the coal-fired only contacts with the slag bed charge on the grate conveyer belt 11, it is not direct with grate conveyer belt 11 contact, be an insulator between grate conveyer belt 11 and coal-fired, the effectual direct high temperature transmission of coal-fired to grate conveyer belt 11 that has kept apart, avoid grate and initiative piece to burn to lose the fracture, the grate has been protected, hot-blast furnace parts such as initiative piece and long round pin, the life of part has been increased, the continuous operation rate of chain bar formula hot-blast furnace has been improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (7)
1. The utility model provides a bed charge chain bar formula hot-blast furnace which characterized in that includes:
the hot blast stove comprises a hot blast stove body, wherein a grate conveyor belt is arranged in the hot blast stove body along the length direction of the hot blast stove body, a feeding bin which is perpendicular to the front end of the grate conveyor belt is arranged at the front end of the hot blast stove body, a pulverized coal feeding bin and a bedding material feeding bin are arranged in the feeding bin, a coal bed thickness adjusting device is arranged in the pulverized coal feeding bin, a bedding material thickness adjusting device is arranged in the bedding material feeding bin, and a slag pit is vertically arranged below the rear end of the grate conveyor belt;
band conveyer, band conveyer one end is equipped with discharge apparatus, discharge apparatus sets up feeding storehouse upper end, the band conveyer other end is equipped with the hopper of vertical setting, the hopper both sides are equipped with fine coal feeder and bedding material feeder respectively, fine coal feeder with bedding material feeder all through feeder conveyor belt with the feed inlet of hopper links to each other.
2. The grate type hot blast stove with the bedding material chain as claimed in claim 1, wherein the pulverized coal thickness adjusting device comprises a coal layer thickness adjusting plate and a pulverized coal thickness adjusting rod, the coal layer thickness adjusting plate is vertically arranged in the pulverized coal feeding bin and is far away from one side of the bedding material feeding bin, the pulverized coal thickness adjusting rod is vertically rotated to penetrate through the coal layer thickness adjusting plate and is located at the upper end of the pulverized coal feeding bin.
3. The bottom-laying chain grate type hot blast stove according to claim 2, wherein a material baffle plate is arranged on one side of the lower end of the coal seam thickness adjusting plate.
4. The grate type hot blast stove for bedding material according to claim 1, wherein the bedding material thickness adjusting device comprises a bedding material thickness adjusting plate and a bedding material thickness adjusting rod, one side of the bedding material thickness adjusting plate is arranged to be closely attached to the inner wall of the bedding material feeding bin, one end of the bedding material thickness adjusting rod is connected with the upper end of the bedding material thickness adjusting plate, and the other end of the bedding material thickness adjusting rod extends to the upper end of the bedding material feeding bin.
5. The grate-type hot blast stove with the bottom-laying material according to claim 1, wherein a hot blast flue communicated with the inside of the hot blast stove body is arranged on the hot blast stove body.
6. The grate-type hot blast stove with bedding materials according to claim 1, wherein a slag screening machine is connected between the slag dropping pit and the bedding material feeder through a conveying belt.
7. A method for operating a bottom-laying chain-grate hot blast stove is characterized in that before a grate conveyor belt spreads coal, slag bottom-laying materials in a bottom-laying feeding bin are laid on the grate conveyor belt to serve as bottom materials, then the bottom materials are discharged through a pulverized coal feeding bin, fire coal is laid on the bottom materials formed by the slag bottom-laying materials, the fire coal and the slag bottom-laying materials which are burnt are conveyed to a slag falling pit along with the grate conveyor belt, the slag bottom-laying materials are screened through a slag screening machine, and the slag bottom-laying materials with the diameter of 10mm-25mm are conveyed to the bottom-laying feeding bin through a conveying belt to be recycled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010432430.6A CN111578261A (en) | 2020-05-20 | 2020-05-20 | Bottom material laying chain-row type hot blast stove and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010432430.6A CN111578261A (en) | 2020-05-20 | 2020-05-20 | Bottom material laying chain-row type hot blast stove and operation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111578261A true CN111578261A (en) | 2020-08-25 |
Family
ID=72126798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010432430.6A Pending CN111578261A (en) | 2020-05-20 | 2020-05-20 | Bottom material laying chain-row type hot blast stove and operation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111578261A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555814A (en) * | 2020-12-31 | 2021-03-26 | 河南农业大学 | Biomass burner with crawler-type combustion hearth for flue-cured tobacco and operation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2268854Y (en) * | 1996-07-18 | 1997-11-26 | 牟文应 | Breaking coal hodder |
| CN100467949C (en) * | 2006-12-19 | 2009-03-11 | 北京中科通用能源环保有限责任公司 | Chain furnace grate protecting method for incinerating biomass fuel and its special device |
| CN202166182U (en) * | 2011-07-04 | 2012-03-14 | 李华 | Improved structure of chain-row type pulverized coal hot blast heater |
| CN203758007U (en) * | 2014-02-28 | 2014-08-06 | 大理州大维肥业有限责任公司 | Chain grate type hot-air stove |
| EP2765358A2 (en) * | 2013-02-08 | 2014-08-13 | KWB - Kraft und Wärme aus Biomasse GmbH | Conveyor belt grate and burner including a conveyor belt grate |
| CN203928385U (en) * | 2014-06-12 | 2014-11-05 | 佛山丰汇机械有限公司 | A kind of chain-arranged type coal-fired hot-blast stove |
-
2020
- 2020-05-20 CN CN202010432430.6A patent/CN111578261A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2268854Y (en) * | 1996-07-18 | 1997-11-26 | 牟文应 | Breaking coal hodder |
| CN100467949C (en) * | 2006-12-19 | 2009-03-11 | 北京中科通用能源环保有限责任公司 | Chain furnace grate protecting method for incinerating biomass fuel and its special device |
| CN202166182U (en) * | 2011-07-04 | 2012-03-14 | 李华 | Improved structure of chain-row type pulverized coal hot blast heater |
| EP2765358A2 (en) * | 2013-02-08 | 2014-08-13 | KWB - Kraft und Wärme aus Biomasse GmbH | Conveyor belt grate and burner including a conveyor belt grate |
| CN203758007U (en) * | 2014-02-28 | 2014-08-06 | 大理州大维肥业有限责任公司 | Chain grate type hot-air stove |
| CN203928385U (en) * | 2014-06-12 | 2014-11-05 | 佛山丰汇机械有限公司 | A kind of chain-arranged type coal-fired hot-blast stove |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555814A (en) * | 2020-12-31 | 2021-03-26 | 河南农业大学 | Biomass burner with crawler-type combustion hearth for flue-cured tobacco and operation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20060169181A1 (en) | Method and burner apparatus for injecting a pulverized coal into rotary kilns, method and apparatus for producing cao using them | |
| CN103542415A (en) | Smoke pyrolysis kiln-furnace-combined type sludge incinerator | |
| CN107328099A (en) | Biomass thermal wind furnace and fully-automatic biomass hot-blast stove | |
| CN111578261A (en) | Bottom material laying chain-row type hot blast stove and operation method thereof | |
| CN206269118U (en) | Biological particles combustion apparatus | |
| CN101793391B (en) | Automatic high-efficient biomass granular fuel combustor | |
| CN103712226B (en) | It is applied to the circulation pulverized coal preparation system of middle-size and small-size industrial coal powder boiler | |
| CN207674423U (en) | A kind of particle burning machine | |
| CN208546960U (en) | The furnace grate of incendivity biomass fuel and fossil fuel | |
| CN109855087A (en) | Biological particles combustion stove | |
| CN203731459U (en) | A circulating pulverizing system applied to a small- and medium-size industrial pulverized coal boiler | |
| CN2814286Y (en) | Circulating fluidized bed furnace | |
| CN105042604A (en) | Automatic decoking combustion chamber for combusting biomass fuel | |
| CN211976862U (en) | Boiler with inclined fixed grate | |
| CN103492807A (en) | Incinerator having afterburner grate | |
| JPH0547928Y2 (en) | ||
| CN111911949A (en) | High-efficient coal-fired machine | |
| CN101738081A (en) | Shaft kiln | |
| CN201589285U (en) | Double-roller type residue feeder | |
| CN216790164U (en) | On-line obstacle removing device for return materials of circulating fluidized bed boiler | |
| CN220269356U (en) | Intelligent feeding biomass burner | |
| CN202371740U (en) | Layering coal supply device | |
| CN108844055A (en) | boiler | |
| CN204100279U (en) | Coal feeder for layered burning | |
| CN218455388U (en) | Novel inflammable material preheats structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |