The big sack cleaner of high temperature
Technical field
The utility model relates to a kind of smoke dust-removing equipment, the big sack cleaner of especially a kind of high temperature.
Background technology
At present, the machine shaft kiln dust removal problem one in cement plant is to being difficult problem, and this is because the machine shaft kiln has three height, more than two, characteristics that fluctuate, i.e. dust concentration height, and the water capacity height, the gas temperature height, fine dust is many, and pernicious gas is many, and all parameter fluctuations are all bigger.Want to resolve machine shaft kiln dust removal problem, must solve problems such as dewfall, burning bag, the sticking bag of dust.The high-efficiency dust remover that is fit to these class industrial and mining enterprises of China, the effect that the glass fiber bag type deduster uses is relatively good.But the pre-separation weak effect that also has dust; When too high the or Mars particle of flue-gas temperature enters dust settling pocket, cause and burn bag; When ambient temperature is low, cause dewfall, the sticking bag of dust.
The utility model content
For the pre-separation weak effect that overcomes existing glass fiber bag type deduster dust, the deficiency of burning the sticking bag of bag, dewfall and dust.The utility model provides a kind of high temperature big sack cleaner, and this deduster can effectively improve the pre-separation effect of dust, eliminates that the Mars particle enters dust settling pocket and the burning bag phenomenon that causes; When ambient temperature is low, can not cause the sticking bag of dewfall and dust simultaneously.
The technical scheme that its technical problem that solves the utility model adopts is: contain blast pipe, reverse-blow pipe, discharge pipe, exhaust chamber, dust settling pocket, dust settling pocket chamber, housing, ash bucket, unloading valve, blast pipe top is provided with cool air hose, the interior bottom of blast pipe is provided with pre-separate device, pre-separate device is made of last break-in flow plug, following break-in flow plug and equal flow cone, blast pipe is provided with temperature-detecting device, discharge pipe is provided with temperature-detecting device, and the lateral surface of housing and ash bucket is provided with heat-insulation layer.
Dust settling pocket is made by glass buiky yarn filtrate.
The last break-in flow plug of pre-separate device and following break-in flow plug can be set up one to two respectively.
The beneficial effects of the utility model are, owing to adopt pre-separate device, when high-temperature flue gas installs by this, the conical surface of high-temperature flue gas and upper and lower break-in flow plug and equal wind awl collides, the dust granules of high-temperature flue gas directly falls in the ash bucket after losing kinetic energy, thereby the dust concentration in the high-temperature flue gas reduces greatly, speed in the high-temperature flue gas greatly reduces simultaneously, processes such as Mars bulky grain are above-mentioned repeatedly change direction and collision after, directly fall into ash bucket after losing kinetic energy, avoided the Mars bulky grain directly to contact the phenomenon that causes dust settling pocket to burn out with dust settling pocket.
Because the lateral surface of housing and ash bucket is provided with heat-insulation layer and has guaranteed that the deduster internal temperature is not subjected to the influence of ambient temperature, therefore avoided dewfall, thereby eliminated the generation of the sticking bag of dust phenomenon.
Because blast pipe and discharge pipe is provided with temperature-detecting device, blast pipe top is provided with cool air hose, the serviceability temperature scope that surpasses deduster when the temperature-dawn of blast pipe and discharge pipe, then open cool air hose and enter cold wind, to reduce the temperature in the deduster, guaranteed that the dust settling pocket of deduster can not burnt out.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present utility model.
1. blast pipes among the figure, 2. cool air hose, 3. reverse-blow pipe, 4. discharge pipe, 5. exhaust chamber, 6. dust settling pocket, 7. dust settling pocket chamber, 8. housing, 9. heat-insulation layer is 10. gone up the break-in flow plug, 11. times break-in flow plugs, 12. Air Heaters, 13. ash buckets, 14. unloading valves.
The specific embodiment
Among Fig. 1, housing 8 is a tubular construction, and housing 8 inside are divided into four to eight dust settling pocket chambers 7, are provided with dust settling pocket 6 in the dust settling pocket chamber 7, and 7 tops, dust settling pocket chamber are provided with exhaust chamber 5.The top of housing 8 is provided with discharge pipe 4, reverse-blow pipe 3.Discharge pipe 4 is provided with temperature-detecting device.The below of housing 8 is provided with ash bucket 13, and the lateral surface of housing 8 and ash bucket 13 is provided with heat-insulation layer 9, and ash bucket 13 belows are provided with unloading valve 14.Blast pipe 1 is arranged on the center of top of barrel-type casing 8 and passes housing 8 inside and enters ash bucket 13 inside.The top of blast pipe 1 is provided with cool air hose 2, and blast pipe 1 is provided with temperature-detecting device.The bottom of blast pipe 1 is respectively equipped with break-in flow plug 10, following break-in flow plug 11 and equal wind awl 12.
During operation, the dust-laden high-temperature flue gas of cement in vertical kiln discharging enters through blast pipe 1.At first pass through the last break-in flow plug 10 of this device, after the conical surface of high-temperature flue gas and last break-in flow plug 10 collides, change direction and speed and slow down, after the conical surface of particle in the high-temperature flue gas and last break-in flow plug 10 collides, lose the conical surface whereabouts of kinetic energy along last break-in flow plug 10; After colliding, the high-temperature flue gas of change direction and slow-down and blast pipe 1 inwall change direction once more, enter down break-in flow plug 11, after colliding, the conical surface of particle in the high-temperature flue gas and following break-in flow plug 11 changes direction again, speed slows down again, after the conical surface of particle in the high-temperature flue gas and following break-in flow plug 11 collides, lose the conical surface whereabouts of kinetic energy along following break-in flow plug 11; After another changes the high-temperature flue gas of direction and blast pipe 1 inwall and collides, change direction, collide at last, after the dust granules in the high-temperature flue gas loses kinetic energy, bottom entering along ash bucket 13 inwalls with ash bucket 13 inwalls with equal wind awl 12 back that collides.Processes such as Mars bulky grain are above-mentioned repeatedly change direction and collision after, directly fall into ash bucket after losing kinetic energy, the dust content of high-temperature flue gas is reduced, dust obtains pre-separation.In order to improve the pre-separation effect of dust, the last break-in flow plug 10 and the following break-in flow plug 11 of pre-separate device can be set up one to two respectively.High-temperature flue gas speed after colliding with ash bucket 13 slows down greatly, concentration reduces greatly, evenly enter the dust settling pocket 6 in the dust settling pocket chamber 7, dust is trapped in dust settling pocket 6 inner surfaces, and dusty gas then filters through dust settling pocket 6 and is purified, and purified gas enters discharge pipe 4 through exhaust chamber 5 and discharges.Can at high temperature normally movingly go in order to ensure dust settling pocket 6, dust settling pocket 6 is made by glass buiky yarn filtrate.Deduster is after operation a period of time, the dust layer that dust settling pocket 6 inner surfaces capture thickens, the running resistance of deduster increases, after being increased to certain value, just need carry out deashing to the dust settling pocket 6 in certain dust settling pocket chamber 7, the opposite gas of airflow direction when reverse-blow pipe 3 is blown into air-out enters in the dust settling pocket chamber 7, and the dust settling pocket 6 that expands is originally shriveled distortion, dispose the dust that dust settling pocket 6 inner surfaces adhere to, the dust under falls in the ash bucket 13 clearly.The lateral surface of housing 8 and ash bucket 13 is provided with heat-insulation layer 9 and has guaranteed that the deduster internal temperature is not subjected to the influence of ambient temperature, has therefore avoided dewfall, thereby has eliminated the generation of the sticking bag of dust phenomenon.Blast pipe 1 and discharge pipe 4 are provided with temperature-detecting device, blast pipe 1 top is provided with cool air hose 2, in a single day the safe handling temperature range that surpasses deduster when the temperature of blast pipe 1 and discharge pipe 4, then open cool air hose 2 and enter cold wind, to reduce the temperature in the deduster, guaranteed that the dust settling pocket 6 of deduster can not burnt out.Guarantee the normal operation of deduster.