CN201748467U - Fire stirring device in chain-grate stocker boiler - Google Patents
Fire stirring device in chain-grate stocker boiler Download PDFInfo
- Publication number
- CN201748467U CN201748467U CN 201020206923 CN201020206923U CN201748467U CN 201748467 U CN201748467 U CN 201748467U CN 201020206923 CN201020206923 CN 201020206923 CN 201020206923 U CN201020206923 U CN 201020206923U CN 201748467 U CN201748467 U CN 201748467U
- Authority
- CN
- China
- Prior art keywords
- boiler
- rake
- coal
- responsible
- water supply
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a fire stirring device in a chain-grate stocker boiler, which is widely used in the industries of paper making, sugar refining, heat supply, dyeing and spinning, pharmacy, hotels and sheet processing, and is characterized in that the device comprises a water supply main pipe for cooling which is arranged at the forwards arched rear end of the boiler, a rake which can lift coal at the bottom layer to the upper surface and is arranged under the water supply main pipe, a special-shaped joint for connecting the water supply main pipe and the rake, and a transmission part for driving the water supply main pipe and the rake and regulating the speed of the water supply main pipe and the rake. The utility model provides a fire stirring device in a chain-grate stocker boiler, which can realize automatic fire stirring, can increase the combustion efficiency of coal in the boiler and is convenient to install.
Description
Technical field
The utility model belongs to the equipment in field in the Industrial Boiler, the poker mechanism in particularly a kind of chain grate boiler that is widely used in papermaking, sugaring, heat supply, dyeing textile, pharmacy, hotel, machining sheet industry.
Background technology
The phenomenon that China's coal-burned industrial boiler ubiquity operational efficiency is low, energy consumption is high.At present, account for more than 80% of Industrial Boiler quantity at the chain grate boiler that occurs on the market, for the characteristics during coal combustion in this chain grate boiler be: coal is along with in the process of fire grate operation from the coal bunker to the mucking machine, coal is from preheating, catch fire, be burned to after-flame and all be below beginning is penetrated into gradually above the coal seam again, can following coal depend on coal seam thickness by after-flame, the speed of service of fire grate, whether the chimney arch design is reasonable, coal, multiple factor such as whether air distribution is reasonable, the fireman is difficult to hold the appropriate degree of burning control, cause the easy coking of coal, difficult after-flame, be obliged to go manually to poke fire to improve the after-flame of coal, not only labour intensity is big for it, and a large amount of cold airs are scurried into boiler in the combustion chamber draft district, reduce boiler hearth temperature, not only influence boiler combustion but also reduce boiler efficiency.So in chain grate boiler, fixed carbon incomplete combustion loss q
4Account for 15%～20% of boiler efficiency, make chain grate boiler efficient 70%～75%, far below the efficient of oil burner, gas furnace, coal-powder boiler and CFBB.Fixed carbon incomplete combustion loss rate is the principal element of decision boiler efficiency height in the chain grate boiler, how to improve the burn-off rate of fixed carbon in the chain grate boiler, and the efficient that improves chain grate boiler is had important meaning.
The utility model content
In order to address the above problem, the purpose of this utility model has been to provide a kind of poker mechanism that can realize poking fire automatically, improve in burning of coal efficient in the boiler and the chain grate boiler easy for installation.
For achieving the above object, the technical scheme that the utility model adopted is: the poker mechanism in a kind of chain grate boiler, it is characterized in that the water supply that rear end that this device is included in the boiler face arch has been provided with cooling effect be responsible for, supply water be responsible for below be provided with rake above the coal of bottom can being lifted, connect to supply water and be responsible for and the compromise joint of rake, and be responsible for supplying water, rake plays and drives and the drive disk assembly of speed governing effect.
More excellent, described drive disk assembly is included in to supply water and is responsible for motor, the reduction box that is connected with motor that the below is provided with, is provided with the eccentric wheel that matches with rake on reduction box, and an end is connected the connecting rod that the other end is connected with the water supply person in charge with eccentric wheel.
More excellent, the described water supply person in charge and rake, compromise joint three are respectively seamless steel pipe.
More excellent, described water supply is responsible for two ends and is connected to metal hose in addition, and this metal hose is circumscribed with cold water pipes.
After adopting technique scheme, solved the after-flame difficult problem of fixed carbon in the chain grate boiler well, be responsible for owing to supply water (material is the seamless steel pipe of Φ 65 * 5), compromise joint (the seamless steel pipe joint of Φ 51/ Φ 38), rake (material is the pipe composition that the riffled tube of Φ 28 * 7 inserts Φ 38 * 4) is assembled into the parts that poke fire, drive disk assembly is by motor, reduction box, track, connecting rod constitutes drive disk assembly, poke fire parts and drive disk assembly constitutes poker mechanism together, during work, move back and forth by the movement means parts that poke fire, its speed is controlled by regulating the Frequency Converter Control rotating speed of motor; When on the furnace wall of the burner hearth both sides that this device are installed in chain grate boiler, see about its direction of motion is from the boiler front and to move back and forth, and fire grate is to rotate backward in the past, both directions are vertical, like this when coal when coal bunker is fallen on the fire grate, following fire grate moves backward, at a touch poker mechanism pokes fire during parts, the coal of bottom is lifted top, to accelerate the after-flame of coal, simultaneously because of the parts side-to-side movement that pokes fire, be equivalent to and stir about the coal seam, quicken coal and mixes with air, form the coke button of bulk when preventing coal combustion again and make phenomenon appearance such as the coal that wraps in inside the coke button can't burn to accelerate its burning, by install the test of poker mechanism additional on chain grate boiler, its boiler efficiency improves 8%～10%.With 10 tons of boilers is example, consumption coal (5000 kilocalorie II class bituminous coal) per hour 1.7 tons, efficient is as improving 10%, then Yi Nian economizes coal 1.7 * 20 * 300 * 10%=1020 ton, its direct economic benefit is calculated as 71.4 ten thousand yuan/every year by 700 yuan/ton of coal prices, be achieved as follows three effects (1) and add strong coal and Air mixing, improve burning of coal speed; (2) prevent the high temperature combustion zone coal seam rapid coking, improve the burn-off rate of fixed carbon in the coal; (3) in burner hearth, play middle arch action, can be with the coal of heat radiation below face arch, play and ignite and accelerate the burning of coal effect, coal effect especially high to water content and that fugitive constituent is low is more obvious.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, how the moving poker mechanism of this practical chain-grate boiler is applied to realize poking fire automatically in the chain grate boiler in the Industrial Boiler, can in hot environment, keep the technical scheme that stable operation takes and be elaborated.
As shown in Figure 1, poker mechanism in a kind of chain grate boiler, the rear end that this device is included in the boiler face arch has been provided with the water supply person in charge 1 of cooling effect, has been provided with the compromise joint 3 of rake 2, the connection water supply person in charge 1 and rake 2 above the coal of bottom can being lifted below the person in charge 1 that supplies water, and the drive disk assembly 4 that the person in charge 1 that supplies water, rake 2 is played driving and speed governing effect.Described drive disk assembly 4 is included in motor 41, the reduction box 42 that is connected with motor 41 that supply water to be responsible for 1 below and to be provided with, is provided with the eccentric wheel 43 that matches with rake 2 on reduction box 42, and one end be connected the other end and supply water to be responsible for 1 connecting rod that is connected 44 with eccentric wheel 43.The described described water supply person in charge 1 and rake 2, compromise joint 3 threes are respectively seamless steel pipe, and the person in charge 1 two ends of supplying water are connected to metal hose in addition, and this metal hose is circumscribed with cold water pipes.
Use principle is as follows:
At first according to the width of the fire grate of chain grate boiler, select the water supply of appropriate length to be responsible for 1, width design pitch according to fire grate is the rake 2 of 140mm, the width of the quantity=fire grate of rake 2/140, assemble poke fire parts and drive disk assembly according to accompanying drawing again, the parts that poke fire are installed in apart from about the rear end 500mm of boiler face arch, the bottom of rake 2 is apart from about the grate surface 20mm, again at the person in charge 1 the one section metal hose of two terminations that supplies water, the external cold water pipes of metal hose, the whole like this component system that pokes fire installs.When having cooling water to pass through continuously among the water supply person in charge 1 who guarantees the system that pokes fire, boiler can move.Like this when coal when coal bunker is fallen on the fire grate, follow fire grate and move backward, during the rake 2 of the parts that at a touch poke fire, the coal of bottom is lifted top, to accelerate the after-flame of coal; Because of the parts side-to-side movement that pokes fire, be equivalent to and stir about the coal seam simultaneously, quicken coal and mix with air to accelerate its burning, the coke button of forming bulk when preventing coal combustion again.For preventing that rake 2 from burning out in the high-temperature region, rake 2 spies are designed to the heavy wall riffled tube, can solve the vaporization of being heated of water in the rake 2 like this and make, and local vapour, water stratification can not occur and can not cool off the phenomenon that burns out rake 2.The parts that poke fire guarantee not burnt out by thermal-flame by water cooling, drive reduction box 42 by motor 41 and drive rake 2 side-to-side movements, thereby realize the stable operation and the function that pokes fire.
Above-described only is the preferred implementation of the poker mechanism in the utility model chain grate boiler; should be understood that; for the person of ordinary skill of the art; under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (4)
1. the poker mechanism in the chain grate boiler, it is characterized in that the water supply that rear end that this device is included in the boiler face arch has been provided with cooling effect be responsible for, supply water be responsible for below be provided with rake above the coal of bottom can being lifted, connect to supply water and be responsible for and the compromise joint of rake, and be responsible for supplying water, rake plays and drives and the drive disk assembly of speed governing effect.
2. the poker mechanism in the chain grate boiler according to claim 1, it is characterized in that described drive disk assembly is included in motor, the reduction box that is connected with motor that supply water to be responsible for the below and to be provided with, is provided with the eccentric wheel that matches with rake on reduction box, and one end be connected with eccentric wheel, the other end with supply water to be responsible for the connecting rod that is connected.
3. the poker mechanism in the chain grate boiler according to claim 1 is characterized in that the described water supply person in charge and rake, compromise joint three are respectively seamless steel pipe.
4. according to the poker mechanism in claim 1 or the 3 described chain grate boilers, it is characterized in that described water supply person in charge two ends are connected to metal hose in addition, this metal hose is circumscribed with cold water pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020206923 CN201748467U (en) | 2010-05-24 | 2010-05-24 | Fire stirring device in chain-grate stocker boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020206923 CN201748467U (en) | 2010-05-24 | 2010-05-24 | Fire stirring device in chain-grate stocker boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201748467U true CN201748467U (en) | 2011-02-16 |
Family
ID=43583142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020206923 Expired - Fee Related CN201748467U (en) | 2010-05-24 | 2010-05-24 | Fire stirring device in chain-grate stocker boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201748467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256622A (en) * | 2012-02-17 | 2013-08-21 | 吴舒克 | Device for adjusting thickness of coal seam of boiler |
-
2010
- 2010-05-24 CN CN 201020206923 patent/CN201748467U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256622A (en) * | 2012-02-17 | 2013-08-21 | 吴舒克 | Device for adjusting thickness of coal seam of boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202993221U (en) | Reciprocating grate furnace with grate including two reverse pushing-type sections and one forward pushing-type section | |
| CN108105757A (en) | A kind of novel anti-coking intelligent and high-efficiency type biomass heating furnace | |
| CN102901108A (en) | Reciprocating grate furnace with two-section-reverse-acting and one-section-forward-acting grate | |
| CN102620306B (en) | Solid fuel furnace and stepped combined fire grate for same | |
| CN207298918U (en) | It is a kind of to mix the circulating fluidized bed boiler for burning the fuel gas such as producer gas | |
| CN201748467U (en) | Fire stirring device in chain-grate stocker boiler | |
| CN1776337A (en) | Calcining method for belt sintering machine | |
| CN105650618A (en) | Water gas production and combustion integrated combustion method and equipment | |
| CN100596327C (en) | Discharge reducing, consumption lowering, smoke prevention and dust control combined fire coal tunnel cellar stove | |
| CN201561415U (en) | Steam boiler | |
| CN204922956U (en) | Circulating fluidized bed boiler of burning offal | |
| CN206768041U (en) | A kind of energy-saving biomass solid fuel gas producer device | |
| CN201652323U (en) | Synchronous combustion chain furnace with function of full coal layer inflammation | |
| CN110375553A (en) | A kind of mineral hot furnace furnace roof preheating automatic charging equipment | |
| CN2793550Y (en) | Boiler with tailed gas of carbon black as fuel | |
| CN201954527U (en) | Spiral automatic feed combustion boiler | |
| CN202581286U (en) | Solid fuel furnace and wet type flat fire grate for same | |
| CN105090934A (en) | Low-temperature clean coal combustion method applied to fixed bed boiler | |
| CN220284122U (en) | Blast furnace gas high-heating value iron mixer baking device | |
| CN202371740U (en) | Layering coal supply device | |
| CN202747334U (en) | Smokeless combustion system for zinc melting furnace | |
| CN100342175C (en) | Movable seam prying squeezing type coal adding machine and middle feeding type first back burning then positive burning coal burning method | |
| CN102455057B (en) | Novel water-coal-slurry fired organic heat carrier boiler | |
| CN201463540U (en) | Burning device of coal powder smelting furnace | |
| CN207334785U (en) | Double fuel counter-burning type water jacket furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20130524 |