CN88203216U - Chain worked grate trembler for turn over the coal fired in a boiler - Google Patents
Chain worked grate trembler for turn over the coal fired in a boiler Download PDFInfo
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- CN88203216U CN88203216U CN198888203216U CN88203216U CN88203216U CN 88203216 U CN88203216 U CN 88203216U CN 198888203216 U CN198888203216 U CN 198888203216U CN 88203216 U CN88203216 U CN 88203216U CN 88203216 U CN88203216 U CN 88203216U
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- boiler
- main shaft
- grate
- chain
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Abstract
The utility model relates to a chain worked grate trembler for turn over the coal fired in a boiler, which comprises an agitator, a spindle and a holdfast, etc. The agitator is sleeved on the spindle and positioned on the chain grate of the boiler, both ends of the spindle positioned in the outside of the boiler wall are separately supported by the holdfast. When the burning coal bed in the boiler follows the fire grate to move, the agitator can make the coal bed turned over up, down, right, and left by using of own blade-plough shape and fixed angle, so that the sufficient burning of the coal bed is realized and the calorific efficiency of the boiler is improved. The device of utility model has simple structure, reliable function and low cost, convenient installation and maintenance, so the device is applicable to the chain worked boiler having various formats to realize improvement.
Description
The utility model relates to a kind of boiler improvement device, particularly a kind of device that the boiler fired coal layer is stirred, thus improve its efficiency of combustion, be suitable for the chain-grate boiler transformation of all size.
Adopt grate firing type chain-grate boiler the most widely at present, its coal combustion efficient is low, to the colm bad adaptability.Reason is: 1, the fuel single face width of cloth that can only accept furnace wall and high-temperature flue gas is penetrated heat, and ignition condition is poor; 2, fuel advances with travel(l)ing grate, does not have bigger relative motion between them, thereby does not well combine condition between fire coal and the oxygen, because ash is lighter than coal, so the combustion ash is topped above the right bed of material, hampers the right bed of material and fully burns, and causes its efficiency of combustion low.As burning low grade coal, because its caloric value is low, must increase fuel, make coal-fired layer thickening, increased flowing resistance.Take manually to disclose fire, labor strength is big, and working condition is poor.
For a change above-mentioned condition adopts coal dust firing mode and Boiling Combustion mode usually, but coal-powder boiler need increase the complicated big powder manufacturing apparatus of power consumption of a cover, moreover the coal-powder boiler rotating mechanism is many, and maintenance of equipment work amount is big, under the underload situation, combustion instability, and boiler cost height.Though the fluidized bed furnace structure is simpler, mechanical driving device is few, and the flying dust amount is big, and environmental pollution is serious, and total power consumption is big, and equipment attrition is fast, needs religion high managerial skills and operating technology, and this kind boiler total cost is also than higher.
The purpose of this utility model just is in small investment, under the prerequisite convenient for installation and maintenance, for improving the combustion case in chain-grate boiler coal seam, improves efficiency of combustion and the fire coal a kind of simple in structure that designs stirs device.
Device of the present utility model is made up of parts such as stirring device, main shaft, support.Stirring device is to be sleeved on one by one on the main shaft, inserts in the burner hearth from the boiler peephole, is positioned on the traveling-grate stoker, and bracket supports is used at the main shaft two ends that are exposed to the furnace wall outside respectively.When the coal seam of burning is mobile with fire grate, stir device and the coal seam is stirred up and down by self ploughshare-like shape and arrangement angle, it is fully burnt, to reach the purpose that improves coal combustion efficient.Stir device and can install 2～4 groups according to the boiler size, and the angle of stirring of stirring device between its two adjacent groups is settled on the contrary, arrangement position staggers.Like this, coal-fired layer stirs evenly, and it is more abundant to burn.
Specifically describe structure of the present utility model and effect embodiment below in conjunction with accompanying drawing.
Fig. 1 is position, the structure chart that the utility model device is installed in boiler.
Fig. 2 is assembling mode and the structure cutaway view that stirs device and main shaft.
As seen from Figure 1, stir device and penetrate in the furnace chamber, and place on the traveling-grate stoker (2) by the boiler peephole.Stir the medial end portions that device (1) is sleeved on main shaft (4) one by one, stir being unkitted between the two stands (5) on the two ends main shaft (4) of device (1), be set with segment type shaft sleeve (3), form in order to fixedly stirring the axial location of device (1) with the refractory material sintering, and play heat-blocking action for main shaft (4).Be exposed to outer main shaft (4) two ends of furnace wall and use support (5) supporting respectively.On the outside main shaft (4) of two stands (5), be welded with a semi-disc (6) respectively, rotate semi-disc (6) and can make angle of main shaft (4) rotation, be used for regulating sleeve to be contained in the effect angle of stirring device (1) on the main shaft (4).Semi-disc (6) is located with bolt and support (5).Each is connected main shaft (4) both ends with water composite cooling pipe system (8) with a pair of flange (7), reduces the temperature of main shaft (4) with recirculated cooling water.Under the situation of boiler operatiopn, coal-fired layer moves forward with travel(l)ing grate (2), when stirring device (1) and just ploughing as ploughshare, fire coal layer is stirred up and down, is fully burnt in the coal seam, thereby has improved efficiency of combustion.
Stir device (1) among Fig. 2 and be set on the main shaft (4), do radial location, prevent to stir device (1) and when work, do radially to rotate with flat key (9).Stir device (1) and adopt corundum ceramic material sintering and moulding, its heat resisting temperature is 1700～1800 ℃, and fusing point is more than 1950 ℃, and also available high-temperature refractory (as silicon nitride combined silicon carbide) is made.The working face that stirs device (1) make have certain radian and angle the turnplow shape, and become 25～30 angle with the radial direction of main shaft (4).Main shaft (4) is to make with high temperature resistant, corrosion resistant metal pipe material (just managing as heat-resistance seamless), and logical cooling circulating water prevents to be out of shape under its condition of high temperature in the main shaft (4).
The characteristics of this practicality row type are simple in structure, reliable in function, and cost is low, and is convenient for installation and maintenance, transforms the duration weak point. Through the checking of improved boiler, coal combustion is abundant, and the efficiency of combustion height has improved the caloric value of boiler, is applicable to the technological transformation of all types of chain-grate boilers that the department such as small power station uses, and can saves the boiler improvement expense.
Claims (5)
1, a kind of fire coal that is used on the chain-grate boiler stirs device, it is characterized in that this device by place coal-fired layer top and stretch out the both sides furnace wall by the main shaft (4) of bracket supports, be sleeved on main shaft (4) middle part by flat key (9) connect stir device (1), near the segment type shaft sleeve (3) that stirs device (1), be positioned at furnace wall external support main shaft support (5), formed near support (5) and with semi-disc (6) and flange (7) that main shaft (4) welds together.
2, fire coal according to claim 1 stirs device, and it is characterized in that stirring device (1) is to form with corundum ceramic material sintering, also can adopt high-temperature refractory (as silicon nitride combined silicon carbide) to make.
3, stir device according to claim 1 or 2 described fire coals, it is characterized in that main shaft (4) is just to have managed making with heat-resistance seamless, main shaft is connected with recirculated cooling water in (4).
4, fire coal according to claim 1 stirs device, it is characterized in that welding a semi-disc (6) respectively on two stands Outboard Sections main shaft (4), and semi-disc (6) has the Long Circle circular hole, and is fixing with bolt and support (5).
5, fire coal according to claim 1 stirs device, it is characterized in that this device can install 2～4 groups according to the size of chain-grate boiler, and the quantity of stirring device (4) between adjacent set is strange, idol is alternate, and it is opposite to stir stirring about angle of device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198888203216U CN88203216U (en) | 1988-02-01 | 1988-02-01 | Chain worked grate trembler for turn over the coal fired in a boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN198888203216U CN88203216U (en) | 1988-02-01 | 1988-02-01 | Chain worked grate trembler for turn over the coal fired in a boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88203216U true CN88203216U (en) | 1988-11-09 |
Family
ID=4838077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198888203216U Withdrawn CN88203216U (en) | 1988-02-01 | 1988-02-01 | Chain worked grate trembler for turn over the coal fired in a boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88203216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440585A (en) * | 2019-08-12 | 2019-11-12 | 怀仁县金诚高岭土有限责任公司 | A kind of energy saving kiln |
-
1988
- 1988-02-01 CN CN198888203216U patent/CN88203216U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440585A (en) * | 2019-08-12 | 2019-11-12 | 怀仁县金诚高岭土有限责任公司 | A kind of energy saving kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |