CN105180196A - Boiler feeding device using mobile flat-bottom driven member and disk cam mechanism - Google Patents
Boiler feeding device using mobile flat-bottom driven member and disk cam mechanism Download PDFInfo
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- CN105180196A CN105180196A CN201510687794.8A CN201510687794A CN105180196A CN 105180196 A CN105180196 A CN 105180196A CN 201510687794 A CN201510687794 A CN 201510687794A CN 105180196 A CN105180196 A CN 105180196A
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Abstract
The invention discloses a boiler feeding device using a mobile flat-bottom driven member and disk cam mechanism. Firstly, a disk cam is installed on a rack, the rotation center of the disk cam is connected with the rack through a hinge, a track of a flat-bottom driven member is designed and installed right above the rotation center of the disk cam, besides, the axis of the track is perpendicular to the ground, the bottom plane of the flat-bottom driven member is contacted with the cam, a shaft penetrates through the track, and the upper end of the flat-bottom driven member is connected with a boiler feeding plate. The boiler feeding plate is installed in a fuel storage chamber with a certain gradient, after the boiler feeding plate finishes one feeding period, fuel automatically slides to the boiler feeding plate due to the gravity for preparation for the next feeding period, so that the boiler combustion environment is optimized, the automation level of the boiler feeding device is increased, the personal safety of operators is guaranteed, and the combustion efficiency of the fuel is improved.
Description
Technical field
The present invention relates to smelting iron and steel and manufacture field, particularly a kind of feeding device of boiler utilizing mobile Cam Mechanisms with Flat Follower.
Background technology
Boiler uses power fuel.So-called power fuel refers to except its combustion heat release for except utilization, can not have the fuel of larger economic worth, mainly inferior fuel in other respects.Due to national conditions reason, for many years, China's boiler is limited to use inferior fuel always.The fuel policy of China to heating boiler was mainly tended to based on coal before nineteen ninety, and in the such as end of the year 1988, national coal for replacing oil office also sends replace oil with coal by name, the incentive method of fuel-economizing and the file of subsidy standard.Along with the development of high-rise civil building, the construction of high-new economic and technological development zone, the raising of environmental requirement, and the increase of the natural gas explored of China and coal bed gas reserves and widening of China's import energy policy all impel the corresponding raising of the ratio of heating boiler intermediate fuel oil and combustion gas.Adopt fuel oil or gas heating boiler not only can improve boiler thermal output, and for improving smoke emissioning pollution thing, there is remarkable result.
Boiler while the future development using high-grade fuel, also to the future development using the more inferior fuel of grade.As everyone knows, along with the quickening of process of industrialization and the raising of living standards of the people, municipal refuse has had a strong impact on the living environment of the mankind, has also perplexed the development in city.Traditional waste disposal method is landfill, burning and compost.And the further process to rubbish, be exactly waste energy regeneration.Becoming the focus of our times disposal of refuse this sixth of the twelve Earthly Branches, is wherein the focus that the garbage fired boiler of fuel also becomes in boiler manfacturing industry with rubbish.Rubbish in the boiler directly burning be the Main Means of various countries' waste energy regeneration.Remain at present a difficult problem be the high temperature corrosion of heating surface pipe, and non-combustible material is from the discharge problem in stove.The type of furnace that various countries adopt is various, but mainly contains fluid-bed combustion boiler, rotary kiln type boiler and mechanical grate boiler etc. three kinds.When adopting fluid-bed combustion boiler, rubbish need carry out Pre-sorting and fragmentation, then sends into fluid bed combustion.Costly, the easy stink in stokehold escapes, and affects environment in this type of boiler pretreatment.Mechanical grate boiler be at present with the most a kind of garbage fired boiler, its key is structure and the layout of fire grate.Fire grate segment is generally made with fine finishining after high chrome casting, is arranged to level or inclination.Fire grate can be divided into preheating section, burning zone and after-flame section, and is separated by by fixed grate and motion fire grate and forms.
In view of coal is still boiler main fuel but the serious fact of environmental pollution, each state all competitively develops clean coal technology.So-called clean coal technology refers to from coal exploitation to the overall process utilized, and is intended to the new technologies such as the processing of decreasing pollution discharge and raising utilization ratio, burning, conversion and Environmental capacity.Mainly comprise the content of the aspects such as coal washing, process change, advanced generation technology, gas cleaning.Coal washing refers to the method by physics or chemistry, reduces the content of the impurity such as ash content, sulphur content, spoil in raw coal, and is divided into some grades by Coal rank, ash content, low heat valve and granularity, to meet the needs of different user.Coal can the content of the significantly low ash content of baa and sulphur content after washing, reduces the discharge of the pollutant such as flue dust, sulfur dioxide after burning.
Coal Blending Technology is through screening, fragmentation by the coal of different quality, the process such as proportion, and be aided with certain additive, to change the chemical composition of thermal coal, petrofacies composition, physical characteristic and coal-fired performance, reach and make full use of coal petrography resource, optimization coal product structure, ature of coal complementation, adapt to user's coal combustion equipment to coal quality requirements, improve efficiency of fire coal and the discharge of decreasing pollution thing.Moulded coal is with one or several coals and a certain proportion of binding agent, sulphur-fixing agent etc., shaped size and the patch fuel or the raw material that have certain physicochemical property.Moulded coal also can be the fuel or discarded object that other low heat valves such as fine coal and a certain proportion of coal slime are lower, and add binding agent, additive is processed into moulded coal, some combustion characteristics have also exceeded the combustion characteristics of raw coal.Due to rich coal resources, the processing technology of water-coal-slurry is simple, with Coal Gasification, liquefy compared with, small investment, cost are low.As oil-substituted fuel, many countries consider based on long-term energy strategy, it can be used as the fuel technology of replace oil with coal to carry out studying, develop and laying in, and existing commercialization uses.
In energy supply structure, city heat supply first available energy is coal, and the situation of China's energy resource structure based on coal can not change in a short time; Second the available energy is electric power, and China's gross generation is only second to the U.S., occupies the 2nd, the world, but 50% of per capita household electricity consumption Jin Zhan world per capita share, and it is inadequate to there is peak electricity, the feature that valley power consumption is had a surplus, the general short of electricity phenomenon in the whole nation was also day by day serious over the past two years; 3rd the utilizable energy is natural gas, and its share shared in energy total amount just rises year by year along with the enforcement of West-East National Gas Transmission Project.In addition, the new heat-supplying mode such as earth source heat pump is also brought into use in area with good conditionsi in recent years.
Since reform and opening-up, China's energy industry development rapidly, substantially meets the needs of the national economic development, was once once occurring the situation that supply exceed demand.But China is a developing country, along with the quickening of industrialization and urbanization development speed, particularly the Chinese government proposes to build a well-off society in an all-round way, after the developing goal that the year two thousand twenty quadruples than GDP in 2000, the rate of economic development is accelerated, energy demand increases rapidly, " bottleneck " problem of energy supply deficiency occurs again, electric power, oil, coal supply are comprehensively nervous, more than 20 provinces, municipalities and autonomous regions power cuts to limit consumption in various degree, coal supply is not enough, and price rises on the way, and power price also raises mouth thereupon.In the long run, China faces energy resources deficiency, and supply pressure increases, the significant problems such as environmental protection is particularly thorny, and energy efficiency is low and backward in technique.So energy problem becomes one of focus of various circles of society's concern.In energy consumption system, boiler and heating system occupy very large ratio, and along with the development in city, the heat supply gross area is increasing year by year, energy resource consumption, also by increasing, thus improves the efficiency of city heat supply boiler, reduces the thermal losses of boiler and heating system, economize energy is the vital task of the news imbalance problem alleviating China's energy supply and demand.
Coal-burning boiler heat cost is low, uses the most general in China's district heating system.But because energy conversion efficiency is not high, be the most serious to the pollution of ecological environment in all heating forms, therefore this heat-supplying mode strictly will add resistance control in urban district.In recent years. the separate unit considerable coal-fired boiler technology being applicable to urban area central heating of China's exploitation is increasingly mature, and its operational efficiency is progressively close to station boiler.Meanwhile, along with improving constantly of heating boiler flue gas desulfurization and dedusting technology, make central heating heating plant in urban area in heat cost, scale of investment, plant site selection, the aspect such as construction period and flexibility all has the incomparable superiority of steam power plant.The regional heating of separate unit considerable coal-fired boiler has obvious economic advantages and higher efficiency of energy utilization, also can apply in the city not possessing cogeneration of heat and power condition.
Natural gas be clean, the Gas Energy Source of high-quality, if direct burning supply heating boiler, hot water or the steam of generation are directly used in heat supply, and the parameter of these hot water for heat supply or steam is all very low, belongs to low grade heat energy.Although the low grade heat energy of such generation can be used, this Application way is obviously the waste to high-grade energy.So though gas fired-boiler heat supply is the effective means solving problem of environmental pollution, operating cost is higher, and its heat cost cannot meet the heating industry caloric value of government formulate, and therefore its use should be carried out cautiously.More advanced way natural gas is first used for generating, obtains high-grade electric energy, then low grade residual heat is used further to heat supply, realize cogeneration of heat and power.Natural gas can first be generated electricity by small-sized or micro-gas-turbine unit by one of concrete mode, and hot water produced by the tail gas supply waste heat boiler of gas turbine or steam is used for heat supply, also the tail gas of gas turbine supply residual heat type lithium bromide chiller can be carried out heat supply.Like this, by the cooperation of the equipment such as gas turbine group, heating boiler, lithium bromide chiller, both high-grade electric energy had been obtained, make use of again low-grade heat energy, achieve heat, electric Joint Production and supply, compared with carrying out heat supply with simple heating boiler or the direct gas-firing of direct fired LiBr absorption chiller, using energy source is more reasonable, should give encouragement.And directly deliver to user due to gas distributing system, therefore adopt this energy heat supply based on the mini system of dispersion, as the system heat supply of single building even in units of family, should should not build large-scale centralized gas heating boiler room again.In addition, small gas heating system is Household gas-fired wall-mounted stove especially, can do heating load adjustment at any time, thus decrease the time of system cloud gray model, unit heating area energy consumption can be made to reduce according to the work and rest situation of people.
The manufacture of boiler be unable to do without the welding of boiler, and boiler solder technology will develop from the following aspects future:
1, the production domesticization of welding material:
Along with the development of boiler ultra-high parameter, end user is measured novel C r-Mo heat resisting steel and stainless steel by boiler steel, and these materials are all external developments, and its welding material all relies on import, there is procurement cycle long and spend a large amount of foreign exchange, as the wlding of the materials such as P23, P91 and P92.Therefore the wlding production domesticization of New-type boiler is the responsibility that Boiler Manufacturing Enterprise and wlding manufacturer bear, and organizational strength carry out developing and domesticizing as early as possible.
2, gas shield is welded in the development on boiler:
Gas shielded welding is skill under a kind of efficient, high-quality, energy-conservation welding, widely uses abroad.In order to economize energy, reduce and consume, this technique also has very large usage space, particularly flux-cored arc welding to connect the developing direction connect with automatic gas shielded welding as future, but need solve research and development and the supply of high-grade boiler material flux-cored wire.
3, automatic welding and robot welding:
The solder technology level of boiler header and drum also comparatively backwardness, automatization level is lower, the welding procedure that must automatization level be adopted energetically higher, improves welding efficiency and quality.Robot or robot work station, be the direction of not solving base welding in header, boiler maker should be carried forward vigorously.Narrow-clearance heating wire TIG welds, or narrow-clearance heating wire TIG weldering+submerged-arc welding is the direction of the parts girth weldings such as header, pipeline, steam-water separator.Tube panel system for automatic marker making and annex automatic welding are the technique hands that following Boiler Manufacturing Enterprise needs to consider.
4, the improvement of welding surroundings:
Weld jobs a large amount of on boiler, all rely on the lonely weldering of welding rod electricity or gas shielded arc welding, weld fumes is comparatively large, and operating environment is poor, particularly welding in container.The configuration of local flue dust disposal facility, operation area or whole workshop dust treatment facility is the future directions improving weld job environment.Along with the safety and environmental protection of Boiler Manufacturing Enterprise is collected evidence, the improvement of its welding surroundings mentions agenda.
In a word, heating boiler technology has developed into such level: fuel is to diversification, purifying future development; Water is still the working media of the supply boiler of the status that has comparative advantage, but in recent years, due to the requirement of heating process, has also occurred the boiler taking organic media as boiler working fluid; The scope of operating pressure is widened, in succession there is phase transition of vacuum heating boiler, small-sized supercritical pressure through-flow boiler etc.: the capacity of heating boiler all grows a lot in both direction, the Domestic hanging oil-burning gas-fired boiler of low capacity is rapidly developed in China, simultaneously, due to the requirement of central heating, the capacity of heating boiler increases substantially, and to cogeneration of heat and power, thermoelectric cold cogeneration future development; Due to the pay attention to day by day to raising boiler efficiency, economize energy, the condenser boiler that exhaust gas temperature is very low is developed; Automatic Control of Boiler level, intelligent level are unprecedentedly improved.
Summary of the invention
For China's boiler technology lagging in development; boiler combustion pay-off automaticity is not high; the object of the invention is to propose a kind of feeding device of boiler utilizing mobile Cam Mechanisms with Flat Follower; thus optimize boiler combustion environment; improve the automatization level of feeding device of boiler; the life safety of protection operator, and improve the efficiency of combustion of fuel.
For reaching this object, the present invention by the following technical solutions:
Utilize a feeding device of boiler for mobile Cam Mechanisms with Flat Follower, comprising: disc cam, flat-face follower, flat-face follower track, boiler feeds plate, hinge.
First disc cam is arranged in frame, pivot and the frame of disc cam are connected through the hinge, flat-face follower Track desigh is arranged on directly over disc cam pivot, and the centre-line of track is perpendicular to the ground, flat-face follower soffit plane and cam contact, axle portion is through track, and its upper end is connected with boiler feeds plate.Boiler feeds plate is arranged on to be had in the fuel storage cell of certain slope, and whenever boiler feeds plate completes feeding week after date, fuel slides to boiler feeds plate, for the cycle of feeding next time prepares automatically due to self gravitation.
Detailed description of the invention
Technical scheme of the present invention is further illustrated below by detailed description of the invention.
Embodiment 1
Disc cam is arranged in frame, pivot and the frame of disc cam are connected through the hinge, flat-face follower Track desigh is arranged on directly over disc cam pivot, and the centre-line of track is perpendicular to the ground, flat-face follower soffit plane and cam contact, axle portion is through track, and its upper end is connected with boiler feeds plate.Boiler feeds plate is arranged on to be had in the fuel storage cell of certain slope, and whenever boiler feeds plate completes feeding week after date, fuel slides to boiler feeds plate, for the cycle of feeding next time prepares automatically due to self gravitation.
After installing according to above-mentioned requirements complete design, when cam rotates to lowest part, boiler feeds plate is also in fuel storage cell bottommost, now because fuel is conducted oneself with dignity and the gradient of combustion chamber, automatically boiler feeds plate is slided to, when disc cam rotates to extreme higher position gradually, the flat-face follower be in contact with it also is in extreme higher position, the fuel that boiler feeds plate transports also is in extreme higher position, now by pusher, the fuel in boiler feeds plate is pushed transport pipeline, fuel burns because deadweight and combustion chamber suction force just enter in combustion chamber along pipeline, fuel simultaneously in fuel storage cell slides to the position of boiler feeds plate automatically due to deadweight and the indoor gradient, prepare for transporting the cycle next time, disc cam continues to rotate, when it rotates to extreme lower position, boiler feeds plate arrives fuel storage cell bottommost, such transport cycle completes, this motion iterative motion, fuel is transported endlessly in combustion chamber.
Claims (3)
1. one kind utilizes the feeding device of boiler of mobile Cam Mechanisms with Flat Follower, comprise: disc cam, flat-face follower, flat-face follower track, boiler feeds plate, hinge, is characterized in that, utilize the rotary motion of cam, boiler feeds plate is periodically toward combustion chamber feeding.
2. a kind of feeding device of boiler utilizing mobile Cam Mechanisms with Flat Follower according to claim 1, is characterized in that, flat-face follower and cam contact place are designed to planar structure, thus flat-face follower reciprocating motion running and comparing is steady.
3. a kind of feeding device of boiler utilizing mobile Cam Mechanisms with Flat Follower according to claim 1, it is characterized in that, rotating cam running speed is adjustable, as required filling situation, can regulate the frequency toward boiler feeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510687794.8A CN105180196A (en) | 2015-10-21 | 2015-10-21 | Boiler feeding device using mobile flat-bottom driven member and disk cam mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510687794.8A CN105180196A (en) | 2015-10-21 | 2015-10-21 | Boiler feeding device using mobile flat-bottom driven member and disk cam mechanism |
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| CN105180196A true CN105180196A (en) | 2015-12-23 |
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| CN201510687794.8A Pending CN105180196A (en) | 2015-10-21 | 2015-10-21 | Boiler feeding device using mobile flat-bottom driven member and disk cam mechanism |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1140454A (en) * | 1954-12-06 | 1957-07-23 | Method and device for burning solid fuels in a shaft furnace | |
| CN200982642Y (en) * | 2006-11-14 | 2007-11-28 | 北京机电院高技术股份有限公司 | Waste material feeding device matched with mobile type incinerator |
| CN202613501U (en) * | 2012-05-04 | 2012-12-19 | 王伟 | Multi-function straw particle automatic direct combustion furnace |
| CN203147798U (en) * | 2013-02-04 | 2013-08-21 | 广州迪森热能设备有限公司 | Household water heater with biomass particles serving as fuel |
-
2015
- 2015-10-21 CN CN201510687794.8A patent/CN105180196A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1140454A (en) * | 1954-12-06 | 1957-07-23 | Method and device for burning solid fuels in a shaft furnace | |
| CN200982642Y (en) * | 2006-11-14 | 2007-11-28 | 北京机电院高技术股份有限公司 | Waste material feeding device matched with mobile type incinerator |
| CN202613501U (en) * | 2012-05-04 | 2012-12-19 | 王伟 | Multi-function straw particle automatic direct combustion furnace |
| CN203147798U (en) * | 2013-02-04 | 2013-08-21 | 广州迪森热能设备有限公司 | Household water heater with biomass particles serving as fuel |
Non-Patent Citations (1)
| Title |
|---|
| 石永刚等: "《凸轮机构设计与应用创新》", 30 September 2007, 机械工业出版 * |
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Application publication date: 20151223 |
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