CN202973114U - Rectangular integrated multi-layer hollow repose angle fire grate incinerator - Google Patents
Rectangular integrated multi-layer hollow repose angle fire grate incinerator Download PDFInfo
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- CN202973114U CN202973114U CN 201220657300 CN201220657300U CN202973114U CN 202973114 U CN202973114 U CN 202973114U CN 201220657300 CN201220657300 CN 201220657300 CN 201220657300 U CN201220657300 U CN 201220657300U CN 202973114 U CN202973114 U CN 202973114U
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Abstract
The utility model provides a rectangular integrated multi-layer hollow repose angle fire grate incinerator, and relates to treatment on sludge. At least two rectangular multi-layer hollow repose angle fire grate incinerators are provided; furnace bodies of all the rectangular multi-layer hollow repose angle fire grate incinerators are integrated; the furnace body of each incinerator is rectangular; a fire grate pipe is arranged in each furnace body; an exhaust pipe is arranged at the upper part of each furnace body; a discharge port is formed at the bottom of each furnace body; the fire grate pipes comprise at least two layers of hollow repose angle fire grate pipes; the hollow repose angle fire grate pipes consist of hollow pipes with triangular section; a gas inlet pipe of each incinerator is communicated; the exhaust pipe of each incinerator is communicated; a feeding device is arranged on the top of each furnace body; gas inlet holes of the fire grate pipes are externally connected with a gas outlet of a gas inlet device; an exhaust port of the exhaust pipe is externally connected with a gas inlet of a tail gas collecting and treating device; the feeding device adopts a lifting spiral feeding device; and the lifting spiral feeding device is provided with a feeding conveyor, a hopper, a feeding motor, a spiral elevator, a lifting rod, a spiral slideway, a descending limiting shaft sleeve, a descending limiting switch, an ascending limiting switch and an ascending limiting shaft sleeve.
Description
Technical field
The utility model relates to the processing of mud, especially relates to the hollow angle of repose grate incinerator of the conjuncted multilayer of a kind of rectangle.
Background technology
Usually the moisture content of the mud of sewage treatment plant is about below 85%, about 1000 kilocalories of mud self calorific value generally, and content of organics is more than 50%.
Chinese patent CN2702185 discloses a kind of mud burning treatment apparatus, comprises incinerator main body system, sludge dry system, mud granulizing system and steam and condensate system.Granulation in comminutor after the dry ash mix and blend that pretreated primary sludge and incinerator are discharged then at the drying device inner drying, then is sent in incinerator and is burned.The steam that produces in drying device is sent into the condensing unit condensation, and the condensate water that condensation is got off is discharged through cesspool, and the gas that does not condense advances the incinerator burning.The tail gas that incinerator produces enters atmosphere after purifying and dedusting.Adopt closed cycle between the recirculation heater in drying device and incinerator.The recirculation heater outlet is provided with cooling water temperature control circuit system.
Chinese patent CN102140002A discloses the semi-oriented incineration treatment method of a kind of closed machinery, step 1, and sludge modification utilizes modifier to reduce the adhesion of water in viscosity, mud and the mud of mud and the intensity of mud granule; Step 2, extruding sludge dewatering makes the water content of mud be reduced to 75%, becomes loose graininess mud; Step 3 adopts the further dewatered sludge of used heat, makes the water content of mud be reduced to 55%; Step 4 is that 55% mud and coal mix with the resulting water content of step 3; Step 5, the mixture of mud-coal that step 4 is obtained is delivered to boiler combustion, its tail gas is through dedusting, after desulfurization is processed as the step 2 waste heat source; Step 6 will be through the remaining slag of step 5 burning sludge, coal ash as construction material and additive.
Chinese patent CN1669961 discloses a kind of sludge incineration processing method and Disposal System of Mud Burning.The method is to be that 75%～85% dewatered sludge is delivered in the combustion chamber of recirculating fluidized bed with moisture content, and the dusty gas that dewatered sludge produces in storage is sent in the combustion chamber of recirculating fluidized bed, and dewatered sludge, dusty gas burn together with coal; Burning the tail gas that produces discharges after treatment.This system has CFBB, deduster and mud storeroom, utilize screw pump that dewatered sludge is burned in sludge carrier pipe and sludge spray head are injected into the combustion chamber of recirculating fluidized bed, utilize blower fan that the dusty gas of sludge creation is delivered in the combustion chamber and burn; This system can also have steam blowing equipment and high pressure water cleaning device, cleans screw pump, sludge carrier pipe and sludge spray head with not timing, prevents its dehydrated sludge blockage.
Chinese patent CN2787656 discloses a kind of sludge incineration treatment facility.This equipment has CFBB, deduster and mud storeroom, utilize screw pump dewatered sludge to be injected into from sludge spray head through sludge carrier pipe in the combustion chamber of recirculating fluidized bed and burn, the dusty gas that utilizes blower fan that dewatered sludge is produced in storage is pumped to the combustion chamber and is burned; This equipment can also have steam blowing equipment and high pressure water cleaning device, cleans screw pump, sludge carrier pipe and sludge spray head with not timing, effectively prevents its dehydrated sludge blockage.
Chinese patent CN1931752 discloses the wet mud particle drying, incinerating and treating device of a kind of recirculating fluidized bed, by the circulating fluidized bed incinerator burner hearth, the High Temperature Gas solid separator, back-end ductwork, the grey distributing valve of heat, the mud dispersing device, particle drier, the drier exhaust-gas treatment system forms, the drying and incineration of wet mud is concentrated in single device carry out, wet mud is returning to the burner hearth burning together with circulating ash after completing mummification in particle drier, make the wet contained large quantity of moisture of mud not enter back-end ductwork with the burner hearth high-temperature flue gas, but draw with the particle drier fluidizing gas, the thermal loss of minimizing system, the particle drier exhaust recycles or sends into burner hearth as the particle drier fluidizing gas and burn after the dedusting dehumidifying, does not discharge the gas of peculiar smell in processing procedure.
Summary of the invention
The utility model purpose is to provide the conjuncted multilayer of a kind of rectangle hollow angle of repose grate incinerator.
The utility model is provided with at least 2 hollow angle of repose grate incinerators of rectangular multilayer, and the body of heater of the hollow angle of repose grate incinerator of each rectangular multilayer combines as a whole, the rectangular body of heater of the body of heater of each incinerator; Be provided with furnace grate tube in described body of heater, upper of furnace body is provided with blast pipe, and bottom of furnace body is provided with discharging opening, and the body of heater body of wall is provided with peep hole; Described furnace grate tube is at least 2 layers of hollow angle of repose furnace grate tube, described hollow angle of repose furnace grate tube is that leg-of-mutton hollow pipe forms by the cross section, the gas outlet of the air inlet pipe external air inlet device of hollow angle of repose furnace grate tube is provided with air valve between described hollow angle of repose furnace grate tube and air inlet pipe; Air inlet pipe in each incinerator is communicated with, and the blast pipe in each incinerator is communicated with; The top of described body of heater is provided with feed arrangement; The discharging opening of described bottom of furnace body picks out the charging aperture of material conveyer; The gas outlet of the air admission hole external air inlet device of described furnace grate tube; The air inlet of the external exhaust collection treating apparatus of the exhaust outlet of described blast pipe;
Described feed arrangement can adopt elevating screws formula feed arrangement, and described elevating screws formula feed arrangement is provided with feeding conveyor, hopper, charging motor, helical riser, elevating lever, spiral slide, descending spacing axle sleeve, descending spacing switch, lifting position-limit switch, upper limit limit shaft sleeve; The material outlet of feeding conveyor is located at the top of hopper, hopper is located at the open top of body of heater, helical riser is connected with motor, the top of elevating lever is screw mandrel, screw mandrel and helical riser engagement, spiral slide is located at the bottom of elevating lever, and descending spacing axle sleeve, descending spacing switch and lifting position-limit switch are located at the top of elevating lever, and upper limit limit shaft sleeve is located between screw mandrel bottom and spiral slide;
Form the upper, middle and lower in the body of heater of described incinerator, described upper strata is baking zone, and the middle level is for burning layer, and lower floor is cooling layer; The internal diameter of described body of heater is preferably 1.2 ~ 1.6m, and the height of body of heater is preferably 4 ~ 6 times of body of heater internal diameter; The floor height spacing of described furnace grate tube can be 40 ~ 50cm, and the pipe of described furnace grate tube is apart from being preferably 40 ~ 50cm;
The method that employing the utility model carries out the sludge incineration processing is as follows:
1) mud is mixed with modifier, after stirring the mud powder, the moisture content of mud powder is below 35%, then the mud powder was placed 3 ~ 5 days, and the moisture content of mud powder is down to below 30%; Described stirring is best through 2 stirrings, and the moisture content of mud powder below 40%, adds medium coarse sand during the 2nd stirring after the 1st stirring, makes the moisture content of mud powder below 35%; Described modifier can adopt dry mash, and described dry mash can be selected from flyash, light calcium carbonate powder, dicalcium powder, sludge incineration and process at least a in recrement etc.; The mass ratio of described mud, dry mash, medium coarse sand can be 1: (0.7 ~ 1.2): (0.03 ~ 0.05), the moisture content of described mud can≤80%.Mud and modifier and medium coarse sand are respectively after 2 grades of stirrings, destroy the cell membrane of mud, the mixed material of the interior free surface moisture of table of mud is absorbed, and the temperature of whipping process can reach 40 ~ 60 ℃, can volatilize approximately 5% moisture, make it become the approximately mud powder below 35% of moisture content.After be placed in factory building 3 ~ 5 days, during can produce fermentation (approximately 40 ~ 60 ℃ of temperature) its moisture is volatilized naturally, its moisture content is down to below 30%.
2) the mud powder that step 1) is obtained is sent into extrusion equipment, gets the mud fragment after extruding; Described extruding can be adopted 2 extruding, and the moisture content of described mud fragment is below 25%.
3) with step 2) the mud fragment that obtains sends into the mud forming machine, gets sludge bulking; Described mud forming machine can adopt extruder or ball press, the volume of described sludge bulking can≤1000cm
3Described ball press preferably adopts asymmetric spheroid ball press, and the sludge bulking of gained is sludge ball, and the diameter of sludge ball is beneficial to burn less than 7cm.
4) sludge bulking after moulding is sent into incinerator and burn, the recrement reuse after burning or as the building materials prepared using; The temperature of described burning can be 800 ~ 1000 ℃, and the time of burning can be 0.5 ~ 4h.
5) with the exhaust collection of incinerator, after chemical washing, enter bacteria bed and process, tail gas rear discharging up to standard.
Compare with existing sludge incinerator, the utlity model has following outstanding advantages and technique effect:
1. the burning process of incinerator need not to add any fuel; Recrement after burning is surplus 10% left and right (not containing compound) only.Recrement is as compound reuse and mud mix (the residue recrement can be done the building materials utilization), and is so recycling, reaches the effect of waste recycling, realized Treatment of Sludge energy-saving, minimizing, innoxious, resource.
2. due to the conjuncted incinerator of employing with the hollow angle of repose fire grate of multilayer tracheae, so the cross section of furnace grate tube is triangle, and the furnace grate tube bottom is provided with venthole, and air can be evenly dispersed in burner hearth.Only need add first outside external compound, the recrement reusable edible after burning, burning process integrates mummification, pyrolysis, carbonization, burning, completes in same body of heater, has improved greatly the thermal efficiency of body of heater, and burning process need not to add any fuel.Equipment is few, technological process is short, and processing procedure adopts totally enclosed type, does not produce dust, really reaches the effect of waste recycling, has realized Treatment of Sludge energy-saving, minimizing, innoxious.Recrement after burning is as the Main Function of compound: approximately 80 ~ 120 ℃ of oven-fresh recrement temperature, and with the mud mix, utilize the temperature of recrement can evaporate and adsorb moisture in mud after crushing.The hot high efficiency of body of heater, rational in infrastructure, burn thoroughly, normal pressure operation, long service life, safe and reliable to operation.
3. adopt elevating screws formula feed arrangement, and it is set directly at the incinerator top, due to mud spheroid intensity difference, easily broken, after using lifting, spiral to add the structure of slideway, sludge ball can slowly enter in burner hearth along spiral slide, and along with the increase of material in stove, slideway progressively rises, and therefore can guarantee that material is not broken, evenly distributes in burner hearth, improve the efficient of charging, and improve ventilation effect.This device plays key effect in burning process, because mud spheroid physique is light and soft, is unable to undergo gravity and impacts, and blanking skewness, broken material easily stop up the gap between spheroid, causes burning inhomogeneously maybe can not burning.Adopt the blanking of this device, spheroid is not broken, the spheroid gap is large, ventilation effect good, guarantee the completing combustion of material energy, improve burning velocity.
4. sludge ball enters incinerator through feed arrangement and burns, and during burning on fire first, burns layer and is positioned at bottom of furnace body, along with the passing of the time of burning, burns layer and moves to the body of heater middle part on gradually, and the slag of bottom of furnace body after burning made cooling layer; The hot gas (temperature of burning layer reaches 850 ~ 1000 ℃) that burns layer generation when burning is directly dried the mud on upper strata.Control according to the speed of burning, bottom is slagged tap, burn in the middle level, feed in raw material in the upper strata, so circulation, burns incessantly.Recrement after burning (except original compound) only remains 10%.Recrement enters first technique again and mud mixes, and unnecessary recrement can be used as the building materials utilization.Owing to being block the burning, so the dust that burning process produces is few, if any a small amount of dust, is also most ofly adsorbed by upper baking zone in burner hearth.
Description of drawings
Fig. 1 is that the structure of the utility model embodiment forms schematic diagram.
Fig. 2 is that the structure of the utility model embodiment forms schematic perspective view.
Fig. 3 is that the internal structure of the utility model embodiment forms one of schematic diagram.
Fig. 4 is that the internal structure of the utility model embodiment forms two of schematic diagram.
Fig. 5 is that the structure of the utility model embodiment elevating screws formula feed arrangement forms schematic diagram.
In Fig. 1 ~ 5, respectively be labeled as:
Body of heater 31, baking zone 311, burning layer 312, cooling layer 313, furnace grate tube 32, air inlet pipe 321, air valve 322, blast pipe 33, discharging opening 34, peep hole 35;
Outfeed belt conveyor 4.
The specific embodiment
Following examples are further described the utility model in connection with accompanying drawing.
Take the mud of Xiamen sewage treatment plant as example, its moisture content is about 80%, and mud self calorific value is about 1000～1500Kcal, and content of organics is about more than 50%.
When first igniting was enabled, (for example honeycomb briquette or timber, need not to add fuel again after burning only to need the fuel of tens kilograms.）。
Referring to Fig. 1 ~ 5, the utility model embodiment is provided with at least 6 hollow angle of repose grate incinerators of rectangular multilayer, and the body of heater 31 of the hollow angle of repose grate incinerator of each rectangular multilayer combines as a whole, the rectangular body of heater of body of heater 31 of each incinerator; Be provided with furnace grate tube 32 in described body of heater 31, body of heater 31 tops are provided with blast pipe 33, and body of heater 31 bottoms are provided with discharging opening 34, and body of heater 31 bodies of wall are provided with peep hole 35; Described furnace grate tube 32 is at least 2 layers of hollow angle of repose furnace grate tube, described hollow angle of repose furnace grate tube is that leg-of-mutton hollow pipe forms by the cross section, the gas outlet of air inlet pipe 321 external air inlet devices of hollow angle of repose furnace grate tube is provided with air valve 322 between described hollow angle of repose furnace grate tube and air inlet pipe 321; Air inlet pipe 321 in each incinerator is communicated with, and the blast pipe 33 in each incinerator is communicated with; The top of described body of heater 31 is provided with feed arrangement 2; The discharging opening 34 of described body of heater 31 bottoms picks out the charging aperture of material conveyer; The gas outlet of air admission hole 321 external air inlet devices of described furnace grate tube 32; The air inlet of the external exhaust collection treating apparatus of the exhaust outlet of described blast pipe 33.
Described feed arrangement 2 can adopt elevating screws formula feed arrangement, and described elevating screws formula feed arrangement is provided with feeding conveyor 21, hopper 22, charging motor 23, helical riser 24, elevating lever 25, spiral slide 26, descending spacing axle sleeve 27, descending spacing switch 28, lifting position-limit switch 29, upper limit limit shaft sleeve 210; The material outlet of feeding conveyor 21 is located at the top of hopper 22, hopper 22 is located at the open top of body of heater 31, helical riser 24 is connected with motor 23, the top of elevating lever 25 is screw mandrel 251, screw mandrel 251 and helical riser 24 engagements, spiral slide 26 is located at the bottom of elevating lever 25, and descending spacing axle sleeve 27, descending spacing switch 28 and lifting position-limit switch 29 are located at the top of elevating lever 25, and upper limit limit shaft sleeve 210 is located between screw mandrel 251 bottoms and spiral slide 26;
The interior formation of body of heater 31 the upper, middle and lower of described incinerator, described upper strata is baking zone 311, and the middle level is for burning layer 312, and lower floor is cooling layer 313;
The internal diameter of described body of heater 31 is preferably 1.2 ~ 1.6m, and the height of body of heater 31 is preferably 4 ~ 6 times of body of heater internal diameter; The floor height spacing of described furnace grate tube 32 can be 40 ~ 50cm, and the pipe of described furnace grate tube 32 is apart from being preferably 40 ~ 50cm.
Below provide and adopt the utility model to carry out the concrete steps that sludge incineration is processed:
1) mud is mixed with modifier, after stirring the mud powder, the moisture content of mud powder is below 35%, then the mud powder was placed 3 ~ 5 days, and the moisture content of mud powder is down to below 30%; Described stirring is best through 2 stirrings, and the moisture content of mud powder below 40%, adds medium coarse sand during the 2nd stirring after the 1st stirring, makes the moisture content of mud powder below 35%; Described modifier can adopt dry mash, and described dry mash can be selected from flyash, light calcium carbonate powder, dicalcium powder, sludge incineration and process at least a in recrement etc.; The mass ratio of described mud, dry mash, medium coarse sand can be 1: (0.7 ~ 1.2): (0.03 ~ 0.05), the moisture content of described mud can≤80%.Mud and modifier and medium coarse sand are respectively after 2 grades of stirrings, destroy the cell membrane of mud, the mixed material of the interior free surface moisture of table of mud is absorbed, and the temperature of whipping process can reach 40 ~ 60 ℃, can volatilize approximately 5% moisture, make it become the approximately mud powder below 35% of moisture content.After be placed in factory building 3 ~ 5 days, during can produce fermentation (approximately 40 ~ 60 ℃ of temperature) its moisture is volatilized naturally, its moisture content is down to below 30%.
2) the mud powder that step 1) is obtained is sent into extrusion equipment, gets the mud fragment after extruding; Described extruding can be adopted 2 extruding, and the moisture content of described mud fragment is below 25%.
3) with step 2) the mud fragment that obtains sends into asymmetric spheroid ball press, gets sludge bulking; Described asymmetric spheroid ball press can adopt extruder or ball press, the volume of described sludge bulking can≤1000cm
3Described ball press preferably adopts asymmetric spheroid ball press, and the sludge bulking of gained is sludge ball, and the diameter of sludge ball is beneficial to burn less than 7cm.
4) sludge bulking after moulding is sent into incinerator and burn, the recrement reuse after burning or as the building materials prepared using; The temperature of described burning can be 800 ~ 1000 ℃, and the time of burning can be 0.5 ~ 4h.
5) with the exhaust collection of incinerator, after chemical washing, enter bacteria bed and process, tail gas rear discharging up to standard.
Claims (2)
1. hollow angle of repose grate incinerator of the conjuncted multilayer of rectangle, it is characterized in that being provided with at least 2 hollow angle of repose grate incinerators of rectangular multilayer, the body of heater of the hollow angle of repose grate incinerator of each rectangular multilayer combines as a whole, the rectangular body of heater of the body of heater of each incinerator; Be provided with furnace grate tube in described body of heater, upper of furnace body is provided with blast pipe, and bottom of furnace body is provided with discharging opening, and the body of heater body of wall is provided with peep hole; Described furnace grate tube is at least 2 layers of hollow angle of repose furnace grate tube, described hollow angle of repose furnace grate tube is that leg-of-mutton hollow pipe forms by the cross section, the gas outlet of the air inlet pipe external air inlet device of hollow angle of repose furnace grate tube is provided with air valve between described hollow angle of repose furnace grate tube and air inlet pipe; Air inlet pipe in each incinerator is communicated with, and the blast pipe in each incinerator is communicated with; The top of described body of heater is provided with feed arrangement; The discharging opening of described bottom of furnace body picks out the charging aperture of material conveyer; The gas outlet of the air admission hole external air inlet device of described furnace grate tube; The air inlet of the external exhaust collection treating apparatus of the exhaust outlet of described blast pipe.
2. the hollow angle of repose grate incinerator of the conjuncted multilayer of a kind of rectangle as claimed in claim 1, it is characterized in that described feed arrangement adopts elevating screws formula feed arrangement, described elevating screws formula feed arrangement is provided with feeding conveyor, hopper, charging motor, helical riser, elevating lever, spiral slide, descending spacing axle sleeve, descending spacing switch, lifting position-limit switch, upper limit limit shaft sleeve; The material outlet of feeding conveyor is located at the top of hopper, hopper is located at the open top of body of heater, helical riser is connected with motor, the top of elevating lever is screw mandrel, screw mandrel and helical riser engagement, spiral slide is located at the bottom of elevating lever, and descending spacing axle sleeve, descending spacing switch and lifting position-limit switch are located at the top of elevating lever, and upper limit limit shaft sleeve is located between screw mandrel bottom and spiral slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220657300 CN202973114U (en) | 2012-12-03 | 2012-12-03 | Rectangular integrated multi-layer hollow repose angle fire grate incinerator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220657300 CN202973114U (en) | 2012-12-03 | 2012-12-03 | Rectangular integrated multi-layer hollow repose angle fire grate incinerator |
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| CN202973114U true CN202973114U (en) | 2013-06-05 |
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| CN 201220657300 Withdrawn - After Issue CN202973114U (en) | 2012-12-03 | 2012-12-03 | Rectangular integrated multi-layer hollow repose angle fire grate incinerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966961A (en) * | 2012-12-03 | 2013-03-13 | 厦门荣惠盛新材料有限公司 | Rectangular integrated multi-layer hollow repose angle fire grate incinerator |
-
2012
- 2012-12-03 CN CN 201220657300 patent/CN202973114U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966961A (en) * | 2012-12-03 | 2013-03-13 | 厦门荣惠盛新材料有限公司 | Rectangular integrated multi-layer hollow repose angle fire grate incinerator |
| CN102966961B (en) * | 2012-12-03 | 2015-01-28 | 厦门荣惠盛新材料有限公司 | Rectangular integrated multi-layer hollow repose angle fire grate incinerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20150128 |
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| RGAV | Abandon patent right to avoid regrant |