CN202973115U - Lifting spiral feeding device - Google Patents
Lifting spiral feeding device Download PDFInfo
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- CN202973115U CN202973115U CN 201220664024 CN201220664024U CN202973115U CN 202973115 U CN202973115 U CN 202973115U CN 201220664024 CN201220664024 CN 201220664024 CN 201220664024 U CN201220664024 U CN 201220664024U CN 202973115 U CN202973115 U CN 202973115U
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- mud
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- sludge
- hopper
- shaft sleeve
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Abstract
The utility model discloses a lifting spiral feeding device, which relates to the treatment of sludge. The lifting spiral feeding device comprises a feeding conveyor, a hopper, a feeding motor, a spiral lifter, a lifting rod, a spiral chute, a descending limit shaft sleeve, a descending limit switch, an ascending limit switch and an ascending limit shaft sleeve; the material outlet of the feeding conveyor is arranged above the hopper; the hopper is arranged in a top opening of a furnace body; the spiral lifter is connected with the motor; the upper part of the lifting rod is provided with a lead screw; the lead screw is meshed with the spiral lifter; the spiral chute is arranged at the lower part of the lifting rod; the descending limit shaft sleeve, the descending limit switch and the ascending limit switch are arranged at the upper part of the lifting rod; and the ascending limit shaft sleeve is arranged between the bottom of the lead screw and the spiral chute. According to the lifting spiral feeding device, materials are not crushed and are uniformly distributed in a hearth, so that the feeding efficiency and the ventilation effect are improved.
Description
Technical field
The utility model relates to the processing of mud, especially relates to a kind of elevating screws formula feed arrangement.
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 a kind of elevating screws formula feed arrangement.
The utility model 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.
Compare with existing feed arrangement, the utlity model has following outstanding advantages and technique effect:
Adopt elevating screws formula feed arrangement, 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.The utility model 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 the utility model device, spheroid is not broken, the spheroid gap is large, ventilation effect good, guarantee the completing combustion of material energy, improve burning velocity.
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 800 ~ 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 the use view that the utility model embodiment is used for sludge incineration.
In Fig. 1 and 2, respectively be labeled as:
Elevating screws formula feed arrangement 2, hopper 22, charging motor 23, helical riser 24, elevating lever 25, screw mandrel 251, spiral slide 26, descending spacing axle sleeve 27, descending spacing switch 28, lifting position-limit switch 29, upper limit limit shaft sleeve 210;
Body of heater 31, furnace grate tube 32, air inlet pipe 321, air valve 322, blast pipe 33, discharging opening 34, peep hole 35.
The specific embodiment
Following examples are take the mud of Xiamen sewage treatment plant as example, and 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.）。
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.
Referring to Fig. 1 and 2, the utility model embodiment is provided with feeding conveyor (not drawing in the drawings), 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 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;
During use, elevating screws formula feed arrangement 2 described in the utility model is located at the incinerator top, described incinerator is provided with body of heater 31, 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 the body of heater body of wall is 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 air inlet pipe 321 of hollow angle of repose furnace grate tube 32 is connected with the gas outlet of inlet duct, can be provided with air valve 322 between described hollow angle of repose furnace grate tube 32 and air inlet pipe 321; 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.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.
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%.
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 (1)
1. an elevating screws formula feed arrangement, is characterized in that being 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 201220664024 CN202973115U (en) | 2012-12-03 | 2012-12-03 | Lifting spiral feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664024 CN202973115U (en) | 2012-12-03 | 2012-12-03 | Lifting spiral feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202973115U true CN202973115U (en) | 2013-06-05 |
Family
ID=48514185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220664024 Expired - Fee Related CN202973115U (en) | 2012-12-03 | 2012-12-03 | Lifting spiral feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202973115U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966962A (en) * | 2012-12-03 | 2013-03-13 | 厦门荣惠盛新材料有限公司 | Lifting and spiral feeding device |
| CN106482129A (en) * | 2016-12-02 | 2017-03-08 | 宁波平海建材有限公司 | Charging dissipates even engagement positions |
-
2012
- 2012-12-03 CN CN 201220664024 patent/CN202973115U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966962A (en) * | 2012-12-03 | 2013-03-13 | 厦门荣惠盛新材料有限公司 | Lifting and spiral feeding device |
| CN102966962B (en) * | 2012-12-03 | 2015-10-28 | 厦门荣惠盛新材料有限公司 | Elevating screws formula feed arrangement |
| CN106482129A (en) * | 2016-12-02 | 2017-03-08 | 宁波平海建材有限公司 | Charging dissipates even engagement positions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |