CN206656338U - A kind of waste spinning fuel rod thermodynamic cycle boiler plant - Google Patents

Abstract

The utility model discloses a kind of waste spinning fuel rod thermodynamic cycle boiler plant, is transformed by prototype of DZL series coal-fired steam boiler：The burner hearth face arch vertical angle that preceding thorax combustion zone is set in burner hearth is improved between 45 70 °；The burner hearth rear arch end system lower arc bending in 90 ° that breech combustion zone is set, while the length of the burner hearth rear arch shortens than prototype；The burner hearth brick baffle that the burner hearth rear arch top is set is moved back to burner hearth rear wall side, rear distance of moving is former burner hearth brick baffle to the 20 30% of burner hearth rear wall distance；Secondary blast system is set up in burner hearth.The utility model, for high heating value waste spinning fuel bar fuel, realizes the environmentally friendly disposal of waste spinning dust, the regeneration of waste spinning fuel rod, the comprehensive utilization of boiler generating and heating, waste spinning thing sterilization in waste spinning thing regenerative process by transforming industry coal-boiler.

Description

A kind of waste spinning fuel rod thermodynamic cycle boiler plant

Technical field

A kind of boiler plant is the utility model is related to, more particularly to the regeneration techniques using waste textile fabric, is applied to A kind of thermodynamic cycle Industrial Boiler equipment by the use of the fuel rod that waste spinning dust makes as fuel.

Background technology

China is promoting the disposal of waste textile fabric environment-friendly garbage, and as the industrialization regenerative process of weaving regenerated resources In, it is necessary to solve and make up at any time the application technology and novel device of this regeneration field.Such as：First, it is directed to waste and old clothes Rubbish, before being processed and regenerating, it should meet and meet the civilian Clothing sanitation standard of country, it is necessary to enter to waste textile fabric Row industrialization sterilization, this just needs the substantial amounts of energy to solve sterilization problems.Second, waste textile fabric is in regenerative process, such as Except button, except solid foreign materials, the shredding of waste spinning thing machinery, the separation for mixing waste spinning fiber, go micronic dust, impurity elimination and fibre bundle to comb etc. By the substantial amounts of waste textile fabric dust of related association and chopped fiber in production process, obtain regenerated fiber, regenerated resources it is same When, bring waste spinning dust and mixing chopped fiber to need environmentally friendly the problem of disposing again.Waste spinning dust and mixing chopped fiber and waste and old spinning Fabric is same attribute material, and buried same a century in underground can not degrade.Only progressively solve waste textile fabric and regenerate industrial chain In each technology and novel device, waste spinning thing is regenerated, being converted into regenerated resources can just be possibly realized.

Waste spinning dust can change into and combustible fuel rod.Waste spinning fuel rod detects through authoritative institution to sample, and it is most Low burn value reaches 4800 kilocalories.Waste spinning fuel rod belongs to non-mineral matter fuel, (is more than critical 820 DEG C of nothings two under certain condition Evil English discharges), the noxious gas emission such as without phosphorus, sulphur, carbon, belong to clean fuel.

All kinds of fuel energies of present, such as：Coal, coke, electric power, gasoline, diesel oil, heavy oil, liquefied gas, biomass Fuel etc., all it is corresponding with relative burning boiler.In other words, for different combustion mediums, different heat condition, there is inhomogeneity The burning boiler of type, different operating principle.Existing all kinds of burning boilers such as coal-burning boiler (all types of), gas fired-boiler, diesel oil pot Stove, heavy oil boiler, electric boiler, including biomass fuel boiler etc., it can not all use and be adapted to waste spinning fuel rod fully to burn, Play the conversion of its maximum thermal efficiency.We need to find a kind of New-type boiler, or after being changed a social system to existing boiler, can be applicable concurrent Maximum efficiency, maximum thermal exchange efficiency are waved, is available for the New-type boiler equipment of waste spinning fuel rod thermodynamic cycle.

Utility model content

After analogy is carried out with existing each class A fuel A with reference to waste spinning fuel rod, such as：Fuel physical state, fuel combustion heat Value, fuel combustion operation principle etc., or fuel solid-state, liquid are different, and to hazardous emission and waste spinning fuel rod, there may be two The factor analyses such as 820 DEG C of temperature of Evil English critical value, the utility model proposes it is a kind of it is new suitable for waste spinning fuel rod burning Thermodynamic cycle Industrial Boiler equipment, the boiler can make waste spinning fuel rod fully burn, nontoxic discharge.

It is as follows that the utility model solves the technical scheme that above technical problem is taken：A kind of waste spinning fuel rod thermodynamic cycle pot Furnace apparatus, transformed by prototype of DZL series coal-fired steam boiler：

The burner hearth face arch vertical angle that preceding thorax combustion zone is set in burner hearth is improved between 45-70 °；Breech combustion zone is set The burner hearth rear arch end system lower arc bending in 90 ° put, while the length of the burner hearth rear arch shortens than prototype；After the burner hearth The burner hearth brick baffle that arch top is set is moved back to burner hearth rear wall side, and rear distance of moving is former burner hearth brick baffle to burner hearth rear wall distance 20-30%；Secondary blast system is set up in burner hearth.

Further, waste spinning fuel rod conveyer belt and hopper are set up on existing equipment, the hopper is engaged on described defeated The transport end of material strip, the hopper lower section set chain-grate；Waste spinning fuel rod conveyer belt, fire grate and the burner hearth fire-separated door Three's mutual induction links.

Further, the air-supply region set in former burner hearth is expanded.

Further, the secondary blast system set up, the preceding thorax graded of thorax combustion zone setting is secondary before being included in send Wind pipeline and the breech graded secondary blast pipeline set in breech combustion zone；The preceding thorax graded secondary blast pipeline is arranged on At the top of burner hearth face arch, dried against preceding thorax combustion zone；The breech graded secondary blast pipeline is arranged on below burner hearth rear arch Burner hearth bottom, dried against breech combustion zone.

Further, it is total that the secondary blast system oxygen supply total amount set up is equal to a supply air system oxygen supply Amount.

Further, former clinker electric trowelling is changed to manual blade.

Further, in former boiler tail cigarette comb to setting up boiler feedwater heat exchanger, flue dust mistake between boiler main air blower Filter, tail cigarette water curtain clarifier.

The utility model is provided by transforming industry coal-boiler using high heating value waste spinning fuel rod as novel biomass Fuel, caused by waste spinning fuel rod boiler high temperature and high pressure steam can for waste spinning thing regenerate base provide industrial heating power, generating, Heating and life heat, while thermal disinfection can be carried out before regeneration is processed to waste textile fabric.Realize that waste spinning thing regenerates During the environmentally friendly disposal of waste spinning dust, the comprehensive utilization that sterilizes of the regeneration of waste spinning fuel rod, boiler generating and heating, waste spinning thing.

Compared with the prior art, the utility model significantly has the beneficial effect that：

The 1st, independent fuel rod hopper and conveying mechanism is set, avoid in transmission, transfer, cargo handling process it is broken, Decompose, powdered, easily cause secondary pollution problems.

2nd, by being moved after transforming burner hearth face arch and rear arch, burner hearth brick baffle, combustion space is increased, while adjust fire grate in good time Speed (chain-grate can adjust speed) is carried out, adapting it to combustion reaction, (waste spinning fuel rod detects burning minimum up to 4800 Kilocalorie, less than standard coal carbon burning calorific value (4800~5500 kilocalorie), but higher than stalk, wood chip, rice husk biolobic material fuel rod Combustion heat value (2600~2800 kilocalorie)).

3rd, an air-supply region is expanded, adds secondary blast, waste spinning fuel rod is accelerated and is fully burnt, completes to release Heat release value process.

4th, to utilizing fluid mechanics principle after preceding thorax enlarged area, an ajutage carry out non-equally, not etc. caliber, match somebody with somebody Not isometrical air port is put, realizes the isobaric oxygen supply air output that burner hearth is once blown, it is ensured that after the enlarged area of preceding thorax combustion zone once Blow as uniform, equivalent.

5th, the breech combustion zone of boiler is transformed, the combustion slag of thorax combustion zone, combustion end, burning smoke, combustion gas, secondary combustion before can continuing Burn.

6th, heat exchanger and clarifier are added in the discharge of tail cigarette, can fully recycles tail cigarette heat, and flue gas is net Change is handled.

7th, clinker electric trowelling is removed, expands fire grate bottom space, the leakage of breech airtight passage is reduced, improves boiler tail The burning and purification of cigarette, tail gas.

Brief description of the drawings

Accompanying drawing is only used for showing the purpose of specific embodiment, and is not considered as to limitation of the present utility model, whole In accompanying drawing, identical reference symbol represents identical part.

Fig. 1 is equipment main sectional view；

Fig. 2 is the burner hearth face arch elevation angle and preceding thorax graded secondary blast pipeline location figure；

Fig. 3 is secondary blast system layout.

1- waste spinning fuel rod conveyer belts, 2- fire grates, 3- hoppers, 4- burner hearth fire-separated doors, thorax combustion zone before 5-, 6- burner hearths see fire Mouthful, 7- burner hearth face arch, air supply duct of 8- burner hearths, thorax graded secondary blast pipeline before 9-, 10- burner hearth brick baffles, 11- burner hearths Rear arch, 12- breech combustion zone, 13- breech graded secondary blast pipelines, 14- boiler slag mouths, 15- boiler tail cigarette combs, 16- Boiler feedwater heat exchanger, 17- smoke filters, 18- tail cigarette water curtain clarifiers, 19- boiler main air blowers, 20- boiler chimneys, 21- secondary blast blower fans.

Embodiment

The utility model is described in detail with reference to the accompanying drawings and examples, wherein, accompanying drawing forms the application one Part, and for explaining the utility model together with embodiment of the present utility model.But it will be appreciated by those skilled in the art that Following examples are not the unique restriction made to technical solutions of the utility model, every in technical solutions of the utility model spirit The lower any equivalents done of essence or change, are regarded as belonging to the scope of protection of the utility model.

As shown in figure 1, waste spinning fuel rod thermodynamic cycle boiler plant provided by the utility model, is coal-fired in DZL series Transformed on the basis of steam boiler, DZL series coal-fired steam boiler uses：Single drum, vertical amount formula, water-fire pipe, smaller hard flour pancake boiler, Traveling-grate stoker (parallel enter) formula combustion chamber, watering cycle, it is enterprising on go out, Natural Circulation adds injection (water-cooling wall over-heat-exchanger), There are economizer, air preheater etc..The radiation of left and right side water cooled wall type is heated in burner hearth, and burner hearth both wings are heated for convection current, in drum Arrangement feedwater threaded flue convective heat exchange (steam bubble).

The utility model transformed feed system, burner hearth, fire grate, supply air system, smoke evacuation system etc. on this basis, Dilatation, increase configuration, can meet the heat supply of the thermodynamic cycle biomass boiler of waste spinning dust fuel rod burning.

Concrete measure is as follows：

1st, equipment sets up waste spinning fuel rod conveyer belt 1 and hopper 3, and hopper 3 is engaged on the transport end of material-conveying belt, hopper 3 Lower section sets chain-grate 2, and burner hearth fire-separated door 4 is set in front of burner hearth.Waste spinning fuel rod conveyer belt 1, fire grate 2, burner hearth fire-separated door 4 Three's mutual induction links, as long as waste spinning fuel rod conveyer belt 1 is run, fire grate 2 is just dynamic, and burner hearth fire-separated door 4 turns on, chain-conveyer furnace Row 2 enters burner hearth through burner hearth fire-separated door 4.This arrangement provides automatic continuous feed, waste spinning fuel rod conveyer belt 1 is by fuel Rod is continuously introduced into hopper 3, fuel rod not stacking pressure, by hopper 3 it is straight enter fire grate 2.

2nd, thorax combustion zone 5 and breech combustion zone 12 before equipment is distinguished in burner hearth, before in preceding thorax combustion zone 5, burner hearth is set Arch 7, burner hearth face arch 7 inwardly arches up from stove gate, and improvement is the vertical angle α for improving burner hearth face arch 7 herein, such as Fig. 2 institutes Show, its angle between fire grate 2 is reached more than 45 °, scope is about between 45-70 °, and thorax combustion zone becomes big before making.

3rd, burner hearth rear arch 11 is set in breech combustion zone 12, burner hearth rear arch 11 is extended inward by burner hearth afterbody, herein stove Thorax rear arch 11 have also been made improvement, is changed system into front end and is bent in 90 ° of lower arcs, forms " trunnion nest shape " intermediate zone, meanwhile, The length of burner hearth rear arch 11 is also shortened, breech combustion zone is become big.

The 4th, burner hearth brick baffle 10 is set on the top of burner hearth rear arch 11, after the position of burner hearth brick baffle 10 is relative to prior art Move, the distance moved after burner hearth brick baffle 10 is about the 20-30% that former burner hearth brick baffle 10 arrives burner hearth rear wall distance, expands burning Area, reduce tail cigarette district.

5th, along with the expansion of combustion zone, supply air system is improved on the original basis：Set first, expanding former burner hearth bottom An air-supply region of air supply duct 8 and air output, using fluid mechanics principle, an ajutage carry out non-equally, Caliber, the not isometrical air port of configuration, realize the isobaric oxygen supply air output that burner hearth is once blown, it is ensured that after the enlarged area of preceding thorax combustion zone Once air-supply be uniform, equivalent；Second, as shown in figure 3, setting up secondary blast system, thorax is passed before being set up in preceding thorax combustion zone 5 Level secondary blast pipeline 9, it is especially to be arranged on the top of burner hearth face arch 7, is dried against preceding thorax combustion zone 5；In breech combustion zone 12 set up breech graded secondary blast pipeline 13, are especially the burner hearth bottom for being arranged on the lower section of burner hearth rear arch 11, against breech Dry combustion zone 12；Thorax combustion zone before secondary graded air-supply oxygen supply total amount (preceding thorax secondary blast+breech secondary blast) is equal to Once air-supply oxygen supply total amount.The secondary blast of preceding thorax and breech can be by the same air feed of secondary blast blower fan 21.

6th, former clinker electric trowelling system is removed, manual blade scarfing cinder is used instead at boiler slag mouth 14, after simplifying the internal structure of an organization Fire grate bottom space breech secondary blast pipe arrangement can be greatly simplified.Because waste spinning fuel rod is after normal combustion, combustion slag, combustion End is complete ashes, and this is different from cinder and other forms biomass fuel clinker, only normally start in boiler, shut down therefore Barrier, maintenance fashion have a small amount of slag charge in fire grate, and this can need not use electric trowelling by manual blade scarfing cinder.Simplify and subtract Few clinker electric trowelling system, to reducing the airtight passage leakage of breech combustion zone, it is greatly improved boiler tail cigarette, exhaust combustion effect The thermal efficiency of rate and boiler entirety.

7th, former boiler tail cigarette comb 15 is to setting up boiler feedwater heat exchanger 16, filtrating smoke dust between boiler main air blower 19 Device 17, tail cigarette water curtain clarifier 18, it is ensured that the environment protection emission of waste spinning dust fuel rod thermodynamic cycle boiler, while be also exhaust gas heat By boiler feedwater heat exchanger 16 heat exchange occurs for the cycling and reutilization of amount, hot tail cigarette, and hot water recycles.Tail cigarette water Curtain clarifier 18 port of export sets boiler main air blower 19, blower fan connection boiler chimney 20.

In addition, as general facilities, equipment sets burner hearth to see burner 6, is approximately at burner hearth centre position, front and rear burner hearth outside Equal observable.

Under normal production status, fuel rod is freely fallen into fire grate 2 by waste spinning fuel rod conveyer belt 1 through hopper 3, burner hearth every Vent 4 is linkage with waste spinning fuel rod conveyer belt 1, fire grate 2, and hopper 3 not open by stacking pressure fuel rod, burner hearth fire-separated door 4, fuel rod Advanced with fire grate, and enter preceding thorax combustion zone 5 necessarily to carry out speed.Burner hearth fire-separated door 4 is to the preceding air line distance of thorax combustion zone 5 Short, high-temp combustion in fuel rod self-ignition to burner hearth is short across critical-temperature (820 DEG C) time, produces bioxin pernicious gas Possibility is small, even if trace harmful gases be present, will be fired in preceding thorax combustion zone 5 and breech combustion zone 12 more than 1000 DEG C of temperature To the greatest extent and purify.

Accumulate certain thickness waste spinning fuel rod to advance with fire grate, once sent in the preceding volume enlargement of thorax combustion zone 5, burner hearth Wind, preceding thorax graded secondary blast synthesis power-assisted under, and the angle of burner hearth face arch 7 increases, and the heated increase in face is penetrated in boiler both sides In the case of, fuel rod obtains fully burning and heat exchange.

Five basic fired state areas are presented in burner hearth internal combustion charge bar in combustion, as shown in figure 1, preceding thorax combustion zone 5 Including three fired state areas, i.e. Ith area is heating Zhe Ran areas, fuel rod start to warm up and combustion.IIth area is high temperature combustion zone, combustion Charge bar accelerates and fully burnt, and temperature is rapidly increased to 1000 DEG C of high temperature above.IIIth area is radiation high-temperature area, and fuel rod is fully simultaneously Completely burned, fire box temperature is close to radiation high-temperature.Rear hearth combustion zone 12 includes Liang Ge fired states area, i.e. IVth area fires for wake flame Area is burnt, with fuel rod after-flame, bar residue is remained under breech graded secondary blast, the stirring of boiler exit gas stream, forms " aditus laryngis Nest shape " air-flow.It is burner hearth " aditus laryngis " between IIIth area and IVth area, flammable residue, combustible gas stream, flammable ashes form " α " shape flame With wake flame burning shape.Vth area is tail cigarette cooling area, and afterburnt ashes, dust are because of burning-point, ignition point disappearance, temperature decrease, gas Stream departs from boiler with boiler tail cigarette negative pressure.

Waste spinning dust fuel rod is because it mixes chopped fiber and Dust Characteristics, and under abundant, completely burned state, the afterburnt is residual Slag remains little, only remaining very small amount ashes.Boiler slag mouth 14 is almost without " clinker " phenomenon of discharge.Boiler slag mouth 14 Retain and used only for boiler controller system startup, parking, maintenance, inspection socket.

Fired state, heat exchanger effectiveness of the waste spinning dust fuel rod in forward and backward burner hearth, by waste spinning fuel rod conveyer belt 1 Feeding speed, the gait of march of fire grate 2, burner hearth are once blown oxygen supply air quantity, preceding thorax graded secondary blast oxygen supply air quantity, breech graded The synthesis of secondary blast oxygen supply air quantity, boiler main air blower 19 and the factor such as the negative-pressure air power of boiler chimney 20 and piping sealing state Control and adjust to complete.Meanwhile burner hearth sees the instrument of burner 6 and the configuration of original steam boiler, instrument operational factor, such as：Preceding thorax The temperature value of combustion zone 5, the temperature value of breech combustion zone 12, boiler tail cigarette temperature value, boiler air preheating temperature value, boiler feedwater temperature Angle value, feed pressure value, boiler pressure value, vapor (steam) temperature value, and the parameter such as boiler associated motor voltage, current value is According to structure adjusting and control is carried out, come progressively summing up experience and reach boiler operatiopn optimum state.

The tail cigarette temperature of boiler tail cigarette comb 15 sets up boiler feedwater heat exchanger 16, enters one still up to 140~180 DEG C of residual temperatures Step improves boiler feed temperature.Ashes, residual powder and flying dust are sufficiently cleaned up by two-stage cloth-bag type smoke filter 17 in tail cigarette, tail Trickleer flying dust and tail cigarette peculiar smell, different cigarette in cigarette, finally by tail cigarette water curtain clarifier 18, by hydrone in water curtain to tail The peculiar smell of cigarette, different cigarette molecule are decomposed and fully absorbed, and reach the purification of boiler tail cigarette, finally by boiler main air blower 19, boiler Chimney 20 is to air environment protection emission.

The utility model is transformed existing boiler, adapt it to it is waste and old weaving dust, it is waste and old weaving mixing chopped fiber, The waste and old non-renewable recovery for mixing the waste spinning rubbish of association in a series of waste textile fabric regenerative processes such as chopped fiber of weaving is again Utilize, both ensure that the recycling of fuel, and in turn ensure that environmental sanitation.Then the high temperature for being again converted into thermodynamic cycle boiler is high Steam is pressed, is sterilized for industrial heating, generating, waste spinning clothes and waste spinning raw material in production practices.

Claims (7)

1. A kind of 1. waste spinning fuel rod thermodynamic cycle boiler plant, it is characterised in that：It is using DZL series coal-fired steam boiler as base Plinth,

   The burner hearth face arch vertical angle that preceding thorax combustion zone is set in burner hearth is improved between 45-70 °；

   The burner hearth rear arch end system lower arc bending in 90 ° that breech combustion zone is set, while the length of the burner hearth rear arch is than former Type shortens；

   The burner hearth brick baffle that the burner hearth rear arch top is set is moved back to burner hearth rear wall side, rear shifting distance is former burner hearth every cigarette 20-30% of the wall to burner hearth rear wall distance；

   Secondary blast system is set up in burner hearth.
2. 2. waste spinning fuel rod thermodynamic cycle boiler plant according to claim 1, it is characterised in that：Set up waste spinning fuel rod Conveyer belt and hopper, the hopper are engaged on the transport end of the waste spinning fuel rod material-conveying belt, chain are set below the hopper Formula fire grate.
3. 3. waste spinning fuel rod thermodynamic cycle boiler plant according to claim 1, it is characterised in that：Expand and set in former burner hearth The air-supply region put.
4. 4. waste spinning fuel rod thermodynamic cycle boiler plant according to claim 1, it is characterised in that：That sets up is described secondary Supply air system, the preceding thorax graded secondary blast pipeline and passed in the breech that breech combustion zone is set that thorax combustion zone is set before being included in Level secondary blast pipeline；The preceding thorax graded secondary blast pipeline is arranged at the top of burner hearth face arch, is dried against preceding thorax combustion zone； The breech graded secondary blast pipeline is arranged on the burner hearth bottom below burner hearth rear arch, is dried against breech combustion zone.
5. 5. the waste spinning fuel rod thermodynamic cycle boiler plant according to claim 1 or 3 or 4, it is characterised in that：The institute set up State secondary blast system oxygen supply total amount and be equal to former supply air system oxygen supply total amount of boiler.
6. 6. waste spinning fuel rod thermodynamic cycle boiler plant according to claim 1, it is characterised in that：Scrape former clinker is electronic Plate is changed to manual blade.
7. 7. waste spinning fuel rod thermodynamic cycle boiler plant according to claim 1, it is characterised in that：Arranged in former boiler tail cigarette Pipe is to setting up boiler feedwater heat exchanger, smoke filter, tail cigarette water curtain clarifier between boiler main air blower.