CN104880031A - Closed-circulation fluidized-bed equipment with continuous discharge function and method for applying closed-circulation fluidized-bed equipment - Google Patents
Closed-circulation fluidized-bed equipment with continuous discharge function and method for applying closed-circulation fluidized-bed equipment Download PDFInfo
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- CN104880031A CN104880031A CN201410841767.7A CN201410841767A CN104880031A CN 104880031 A CN104880031 A CN 104880031A CN 201410841767 A CN201410841767 A CN 201410841767A CN 104880031 A CN104880031 A CN 104880031A
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Abstract
The invention discloses closed-circulation fluidized-bed equipment with a continuous discharge function. The closed-circulation fluidized-bed equipment has the advantages that a dust collector branch of circulation fluidized-bed equipment of the invention 201310748462.7 is disconnected from a negative-pressure circulating pipe, a planetary discharge valve for continuously discharging materials is additionally arranged at a dust discharge outlet of a dust collector, the dust discharge outlet of the cyclone dust collector is connected to the negative-pressure circulating pipe, the cyclone dust collector is used as a primary material and air separating device, accordingly, the viscous materials can be separated from air without being fed into discharge branches, and the problem that viscous materials are adhered on cloth bags of existing dust collectors can be solved; airflow exhausted by a condensing tower is delivered to an air heater and is used as inlet airflow after being heated, so that loss of volatile components in the materials can be prevented; moisture in operation media can be deeply separated from the operation media by a molecular sieve dryer, the saturation deficiency of water in the operation media can be improved, the drying speeds can be increased, existing merits of the circulation fluidized-bed equipment of the invention 201310748462.7 can be kept, and problems in the aspect of processing materials such as maca can be solved.
Description
Technical field
The present invention relates to a kind of closed cycle fluid unit and using method thereof of continuous pulp discharge, belong to recirculating fluidized bed and chemical technology field.
Background technology
Patent of invention 201310748462.7 discloses a kind of circulating fluidised bed apparatus, accompanying drawing 1 is this patent of invention embodiment, comprise blower fan 1, malleation circulation pipe I 2, cyclone dust collectors 3, malleation circulation pipe II 4, sack cleaner branch road 5, negative pressure malleation circulation pipe 6 and condensing tower 7, accompanying drawing 2 is the sack cleaners described in this patent of invention, comprise housing 14, filter material 16 and back-blowing device, housing 14 is tube structures, housing 14 one end is provided with air inlet pipe 13, the other end is provided with ash releasing tube 15, one end of air inlet pipe 13 is arranged on outside housing 14, the other end stretches in housing 14, one end of ash releasing tube 15 is arranged on outside housing 14, the other end stretches in housing 14, housing 14 is also provided with exhaust outlet 17, in a tubular form, two open-ended, is arranged in housing 14 filter material 16, and filter material one end is fixed in air inlet pipe 13, and the other end is fixed on ash releasing tube 15, back-blowing device is for removing the material being deposited under airflow function and filter material 16 affecting filter material 16 gas permeability, the back-blowing device of the present embodiment is made up of back-flushing valve 20, blowback threeway 18 and air bleeding valve 19, a port of blowback threeway 18 connects with the exhaust outlet 17 on housing 14, another port connects with the import of air bleeding valve 19, a port is also had to connect with the outlet of back-flushing valve 20, the import of back-flushing valve 20 connects with high-pressure air source, while air bleeding valve 19 is closed, back-flushing valve 20 is opened, and passes into high pressure draught and carry out blowback to filter material 16 in housing 14, air inlet pipe 13 outside housing 14 is imports of sack cleaner, and the ash releasing tube 15 outside housing 14 is outlets of sack cleaner, and the outlet of air bleeding valve 19 is exhaust outlets of pocket type discharge branch road.This invention utilizes the air-flow of blower fan and generation thereof material dispersion to be formed fluidisation state and realize drying in high-speed circulating flow process in circulation canal, pulverize, mixing, screening, the operations such as evaporative distillation, during for drying operation, material is at draught fan impeller, constantly particulate is ground under tube wall and effect of impact each other, heat between material and drying medium and exchange of moisture speed are brought up to ultimate attainment, there is energy consumption low, quick air drying can be realized, can scale heat energy in air be utilized to carry out drying, structure is simple, evaporation rate advantages of higher, the condensation that condensing tower is used for steam and cut is collected.The drying processing that this equipment is used for the materials such as agate coffee has the following disadvantages, one is that fresh plant material is broken rear in pulpous state, easily stick to normal work dust-collecting bag making the material gas separating power of deduster significantly reduce the equipment of impact, two is that volatile component composition is various, character is complicated, these components of whole collection make the structure of condensing tower and operation become complicated, three are agate coffees etc. containing the material of volatile materials add carry out dry powder process in described patent of invention 201310748462.7 equipment time, wherein volatile component loss greatly, as the glucosinolate in agate coffee can be down to about 0.1% of gained finished product total amount by account for fresh fruit butt 1%, loss amount is about 90%, four is that material needs have operated rear disposable discharge, and continuous charging continuous pulp discharge can not be realized, because moisture constantly reduces in the duty cycle, fluidisation state material density, the change of the operating modes such as mobility causes technological parameter as built-in temperature, blower fan operating current, air intake gas flow temperature needs the change constantly regulating adaptation condition, regulate workload very large.
Mole sieve drier is that one utilizes molecular sieve as adsorbent, to a kind of device that gas dewaters, dissimilar molecular sieve has selective to different gas absorption, utilizes this characteristic, and mole sieve drier is also for separation of specific components from gas.Accompanying drawing 3 is examples for mole sieve drier, is made up of 1# sieve container 95,2# sieve container 96, air inlet pipeline 97, regeneration branch 98 and air outlet pipeline 99, on air inlet pipeline 97, a mouth of threeway is the air inlet 107 of mole sieve drier, on air outlet pipeline 99, a mouth of threeway is the air outlet 120 of mole sieve drier, molecular sieve and heater are equipped with in sieve container inside, when 1# sieve container 95 is in running order, wherein the moisture in gas and/or specific components adsorb with the separation of the drying and/or specific components that realize gas by molecular sieve, simultaneously, heater in 2# molecular sieve starts, 2# sieve container 96 is evacuated and makes wherein regenerating molecular sieve by the vavuum pump in regeneration branch 98, the moisture of absorption and/or specific components desorption, when molecular sieve in 1# sieve container 95 is saturated, change the work of 2# sieve container into, regenerating molecular sieve in 1# sieve container.Mole sieve drier has been widely used in the processed of mesohigh gas, but the utilization in 5000-20000 handkerchief low-pressure gas rarely has and sees.
Summary of the invention
First object of the present invention, to be circulating fluidised bed apparatus described in pin patent of invention 201310748462.7 exist material for the drying processing of the materials such as agate coffee easily sticks to dust-collecting bag, collect condensing tower structure and the complicated operation of volatile component, and can not continuous charging continuous pulp discharge, regulate the deficiency of the large grade of workload, invention one had both retained the existing advantage of circulating fluidised bed apparatus described in patent of invention 201310748462.7, also the problem in the materiel machinings such as agate coffee can be solved, can also a kind of closed cycle fluid unit of continuous pulp discharge of continuous charging continuous pulp discharge, another object of the present invention, be to provide following two kinds of usings method of the closed cycle fluid unit of continuous pulp discharge, 1, the closed cycle fluid unit of continuous pulp discharge is utilized to extract the method for volatile component in material, 2, , the closed cycle fluid unit of continuous pulp discharge is utilized to carry out adding man-hour containing the dry powder process of volatile component material, reduce the method for volatile component loss in material.
The technical measures taked for realizing first object of the present invention are such: a kind of closed cycle fluid unit of continuous pulp discharge, following improvement is carried out on circulating fluidised bed apparatus basis described in patent of invention 201310748462.7 form: the connection 1, disconnecting sack cleaner branch road and negative-pressure cyclic pipe, is used for discharge using sack cleaner branch road as discharge branch road; 2, the ash discharging hole of cyclone dust collectors is received on negative-pressure cyclic pipe, cyclone dust collectors as one-level material air separation by material and flow separation, the material separated enters negative-pressure cyclic pipe, the problem making material no longer enter discharge branch road to adhere on dust-collecting bag to solve pasty material; 3, air heater is increased and the air-flow air supply heater of being discharged by condensing tower with pipeline uses as air intake air-flow, formation closed circuit circulatory system in negative-pressure cyclic pipe air inlet.
The closed cycle fluid unit of the continuous pulp discharge improved, is made up of blower fan, malleation circulation pipe I, cyclone dust collectors, malleation circulation pipe II, discharge branch road, negative-pressure cyclic pipe, pipeline I, condensing tower, pipeline II, air heater, pipeline III, blowback air source pressurizing branch road; Malleation circulation pipe I, malleation circulation pipe II are pipelines; The ash discharging hole of cyclone dust collectors is less than air inlet, and cyclone dust collectors import connects with the outlet of malleation circulation pipe I, and cyclone dust collectors exhaust outlet connects with the import of malleation circulation pipe II; Discharge props up route first sack cleaner, the second sack cleaner and planet blow-off valve and is connected in turn, sack cleaner is identical with sack cleaner described in patent of invention 201310748462.7, the import of the first sack cleaner is the import of discharge branch road, the material that planet blow-off valve is collected for discharging discharge branch road, the import of discharge branch road connects with the outlet of malleation circulation pipe II; Negative-pressure cyclic pipe is pipeline, the head end of negative-pressure cyclic pipe is import, tail end is outlet, cyclone dust collectors ash discharging hole interface and feeding device interface is provided with between export and import, feeding device interface has charging valve and/or atomizer, cyclone dust collectors ash discharging hole interface connects with the ash discharging hole of cyclone dust collectors; The import of condensing tower is connected by the exhaust outlet of pipeline I with the first sack cleaner and the second sack cleaner, the outlet of condensing tower is connected with the import of air heater by pipeline II, the outlet of air heater is connected by the import of pipeline III with negative-pressure cyclic pipe, pipeline III is also provided with blowback air source pressurizing tributary interface, blowback air source pressurizing branch road is the pipeline with gas pressurized device, and blowback air source pressurizing branch road is connected between the back-flushing valve import of blowback air source pressurizing tributary interface and the first sack cleaner and the second sack cleaner on pipeline III; The outlet of negative-pressure cyclic pipe, fan inlet, fan outlet, malleation circulation pipe I import is connected successively, forms two closed circulation canals.
Said modules forms two closed circulation canals, first circulation canal: fan outlet, malleation circulation pipe I, cyclone dust collectors, negative-pressure cyclic pipe, fan inlet, major part material and fraction air-flow are at the first circulation canal internal circulation flow, second circulation canal: fan outlet, malleation circulation pipe I, cyclone dust collectors, malleation circulation pipe II, discharge branch road, pipeline I, condensing tower, pipeline II, air heater, pipeline III, negative-pressure cyclic pipe, fan inlet, major part air-flow is at the second circulation canal internal circulation flow, drying puts in place to be collected in bottom discharge branch road after the material that is dispersed into more small particle enters discharge branch road with the air-flow that cyclone dust collectors are discharged and is discharged continuously by planet blow-off valve.
In order to realize the control of built-in temperature and control rotation speed of fan by technological requirement, present device is also provided with adjusting device, adjusting device comprises air heater wind-warm syndrome adjusting device and rotation speed of fan adjusting device, the hot blast temperature that air heater wind-warm syndrome adjusting device utilizes the output signal of the temperature sensor be arranged on malleation circulation pipe I or malleation circulation pipe II to control air heater output makes built-in temperature be no more than design temperature, the heat that described rotation speed of fan adjusting device is come for regulating rotation speed of fan to control blower fan kinetic transformation, built-in temperature is made to be no more than design temperature.
In order to adapt to the operation of various materials, as a modification of the present invention, described pipeline II arranges the moisture in the air-flow that mole sieve drier discharges for degree of depth separating and condensing tower, poor with water saturation in increase operation medium, improve the vaporization rate of moisture in material, described mole sieve drier is the mole sieve drier described in background technology, and the air inlet or air outlet of mole sieve drier are also provided with gas supply interface.
Further, described pipeline I and pipeline II are provided with condensing tower bypass pipe interface, described pipeline I and pipeline II are provided with between condensing tower bypass pipe interface the condensing tower bypass pipe of band valve; The air inlet and air outlet of described mole sieve drier are provided with mole sieve drier bypass pipe interface, between two interfaces, are provided with the mole sieve drier bypass pipe of band valve.
For realizing another object of the present invention, namely providing the using method of the closed cycle fluid unit of continuous pulp discharge, to illustrate with the present device of mole sieve drier, condensing tower bypass pipe and mole sieve drier bypass pipe, carrying out as follows.
One, utilize the closed cycle fluid unit of described continuous pulp discharge to extract the method for volatile component in material, operate according to the following steps:
S1: technological parameter is determined: consider following three factors and formulate technological parameter, 1, condensing tower temperature schedule is formulated according to the volatile materials admixture characteristic that will extract, 2, according to temperature schedule in the sensitive characteristic making machine of material, 3, be criterion with energy-conservation;
S2: start: start blower fan after equipment energising, close the valve on condensing tower bypass pipe and mole sieve drier bypass pipe, start planet blow-off valve, start condensing tower, start mole sieve drier;
S3: reinforced: according to the character of material, material is added by charging valve or atomizer, what feeding quantity was no more than its rated current with blower fan operating current 95% is advisable;
S4: the operation in operation process and process:
S401: operation process: material is dispersed into particulate under the action of high-speed airflow of blower fan and generation thereof, form fluidisation state and high-speed circulating flowing in circulation canal, water in material and volatile component are volatilized fast, enter condensing tower with air-flow through the cloth bag of sack cleaner to be condensed the mixture being collected in condensing tower and obtaining volatile material, operation medium enters air heater heating and uses as air intake air-flow after mole sieve drier deep dehydration; Major part material is separated by cyclone dust collectors and enter the cycle operation of negative-pressure cyclic pipe through ash discharging hole together with fraction air-flow, fraction particle diameter is less and the particulate that volatile component content is little is separated with cyclone dust collectors most of air-flow enters discharge branch road, is discharged after being deposited to bottom by planet blow-off valve;
S402: the operation in operation process:
S40201, technological parameter regulate: the variations in temperature of observing in condensing tower adjusts in good time and makes it not depart from condensing tower temperature schedule; Observe the temperature value of temperature sensor display, the temperature of adjustment air heater output hot blast makes built-in temperature not depart from built-in temperature system in good time;
S40202, to feed in raw material: along with the volatilization of volatile component and planet blow-off valve constantly discharge material, blower fan load can reduce causes blower fan operating current to decline in good time, when operating current lower than its rated current 90% time, feed in raw material in good time; Feeding quantity accomplishes uniformly continous as far as possible, makes blower fan operating current remain between the 90-95% of rated current;
S40203, the volatile component reclaimed in the moisture of mole sieve drier discharge: also containing volatile component in the moisture that mole sieve drier vavuum pump is discharged, condensation of being pressurizeed is reclaimed;
S5, shutdown: after operation completes, close blower fan, condensing tower and mole sieve drier, shutdown of cutting off the electricity supply.
This law also can be used for adding man-hour containing the dry powder process of volatile component material, reclaims volatile component.
Two, utilize the closed cycle fluid unit of described continuous pulp discharge to carry out adding man-hour containing the dry powder process of volatile component material, reduce the method for volatile component loss in material, operate as follows:
S1: technological parameter is determined: consider following three factors and formulate technological parameter, 1, condensing tower temperature schedule is formulated according to the volatile materials admixture characteristic that will extract, 2, according to temperature schedule in the sensitive characteristic making machine of material, 3, be criterion with energy-conservation;
S2: start: start blower fan after equipment energising, opens the valve on condensing tower other energy pipe, and the valve on Molecular regulator sieve drier bypass pipe, to 50% of aperture, starts mole sieve drier, starts planet blow-off valve, keep condensing tower unimpeded but do not start condensing tower;
S3: reinforced: according to the character of material, material is added by charging valve or atomizer, what feeding quantity was no more than its rated current with blower fan operating current 95% is advisable;
S4: the operation in operation process and process:
S401: operation process: material is dispersed into particulate under the action of high-speed airflow of blower fan and generation thereof, form fluidisation state and high-speed circulating flowing in circulation canal, material is able to rapid draing, and most of air-flow enters condensing tower and condensing tower bypass pipe through the cloth bag of sack cleaner and to enter through pipeline II and enter air heater heating after mole sieve drier deep dehydration and use as air intake air-flow; The moisture degree of depth entered in wherein air-flow is separated by mole sieve drier, increases water saturation in operation medium poor, improves the rate of drying of material; Operation medium high for molecular sieve entrance point volatile component concentration is delivered to negative-pressure cyclic pipe by mole sieve drier bypass pipe, increase the concentration of volatile component in operation medium in the first circulation canal, suppress the volatilization of volatile component, simultaneously, also reduce the concentration of molecular sieve air inlet volatile component, reduce the discharge rate of volatile component during regenerating molecular sieve;
S402: the operation in operation process:
S40201, technological parameter regulate: the temperature value observing temperature sensor display, and the temperature that in good time adjustment air heater exports hot blast makes built-in temperature not depart from built-in temperature system;
S40202, to feed in raw material: along with the volatilization of volatile component and planet blow-off valve constantly discharge material, blower fan load can reduce causes blower fan operating current to decline in good time, when operating current lower than its rated current 90% time, feed in raw material in good time; Feeding quantity accomplishes uniformly continous as far as possible, makes blower fan operating current remain between the 90-95% of rated current;
The process of volatile component in the moisture that S40203, mole sieve drier are discharged: containing volatile component in the moisture that mole sieve drier vavuum pump is discharged, condensation of being pressurizeed when needing is reclaimed;
S5, shutdown: after operation completes, close blower fan, condensing tower and mole sieve drier, shutdown of cutting off the electricity supply.
Part this law that the moisture that in this method material, the loss of volatile component only has mole sieve drier to discharge is taken out of significantly can reduce the loss of volatile component in institute's processing materials.
The closed cycle fluid unit of continuous pulp discharge of the present invention, by disconnecting the connection of circulating fluidised bed apparatus deduster branch road and negative-pressure cyclic pipe described in patent of invention 201310748462.7 and increasing planet blow-off valve for continuous pulp discharge on remover ash discharge dust mouth, by the ash discharging hole of cyclone dust collectors is received negative-pressure cyclic pipe, utilize cyclone dust collectors to make it no longer enter discharge branch road viscous material separation as one-level material air separation and solve its problem adhered on dust-collecting bag, use as air intake air-flow after delivering to air heater heating by the air-flow of being discharged by condensing tower, avoid the loss of volatile component in material, by the moisture in mole sieve drier degree of depth lock out operation medium, increase water saturation difference in operation medium and accelerate rate of drying, both the existing advantage of circulating fluidised bed apparatus described in patent of invention 201310748462.7 had been retained, also problem in the materiel machinings such as agate coffee can be solved.
Accompanying drawing explanation
Fig. 1 is the structure chart of patent of invention 201310748462.7 1 examples.
Fig. 2 is an example block diagram of sack cleaner described in patent of invention 201310748462.7.
Fig. 3 is a kind of structure chart of mole sieve drier example.
Fig. 4 is the structure chart of the closed cycle fluid unit of embodiment 1 one continuous pulp discharge.
Fig. 5 is the structure chart of embodiment 2 one kinds with the closed cycle fluid unit of mole sieve drier continuous pulp discharge.
Fig. 6 is the structure chart of the closed cycle fluid unit of the continuous pulp discharge of embodiment 3 one kinds with bypass pipe.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described, but embodiment is not construed as limiting the invention.
Embodiment 1: a kind of closed cycle fluid unit of continuous pulp discharge
See Fig. 4, a closed cycle fluid unit for continuous pulp discharge, is made up of blower fan 21, malleation circulation pipe I 22, cyclone dust collectors 24, malleation circulation pipe II 23, discharge branch road, negative-pressure cyclic pipe 40, pipeline I 31, condensing tower 32, pipeline II 33, air heater 34, pipeline III 35, blowback air source pressurizing branch road 36 and adjusting device; Malleation circulation pipe I 21, malleation circulation pipe II 22 are pipelines; The ash discharging hole diameter of cyclone dust collectors 24 is 1/5th of its air inlet diameter, and the import of cyclone dust collectors 24 connects with the outlet of malleation circulation pipe I 22, and the exhaust outlet of cyclone dust collectors 24 connects with the import of malleation circulation pipe II 23; Discharge props up route first sack cleaner 27, second sack cleaner 28, planet blow-off valve 30 is connected in turn, first sack cleaner 27, second sack cleaner 28 is identical with sack cleaner described in patent of invention 201310748462.7, the import of the first sack cleaner 27 is imports of discharge branch road, and the import of discharge branch road connects with the outlet of malleation circulation pipe II 23; Negative-pressure cyclic pipe 40 is pipelines, the head end of negative-pressure cyclic pipe 40 is imports, tail end is outlet, cyclone dust collectors ash discharging hole interface and two feeding device interfaces are provided with between export and import, a feeding device interface there is charging valve 38, another feeding device interface has atomizer 37, and cyclone dust collectors ash discharging hole interface connects with the ash discharging hole of cyclone dust collectors 24; the import of condensing tower 32 is connected by the exhaust outlet of pipeline I 31 with the first sack cleaner 27 and the second sack cleaner 28, the outlet of condensing tower 32 is connected by the import of pipeline II 33 with air heater 34, the outlet of air heater 34 is connected by the import of pipeline III 35 with negative-pressure cyclic pipe 40, pipeline III 35 is also provided with blowback air source pressurizing tributary interface, blowback air source pressurizing branch road 36 is the pipelines with gas pressurized device, blowback air source pressurizing branch road 36 to be connected on pipeline III 35 blowback air source pressurizing tributary interface and between the first sack cleaner 27 and the back-flushing valve import of the second sack cleaner 28, adjusting device comprises air intake gas flow temperature adjusting device and rotation speed of fan adjusting device, the temperature that air intake gas flow temperature adjusting device utilizes the temperature sensor 41 output signal control air heater 34 be arranged on malleation circulation pipe I 22 to export hot blast makes built-in temperature be no more than design temperature, the heat that described rotation speed of fan adjusting device is come for regulating rotation speed of fan to control blower fan kinetic transformation, built-in temperature is made to be no more than design temperature, the outlet of negative-pressure cyclic pipe 40, blower fan 21 import, blower fan 21 exports, and malleation circulation pipe I 22 import is connected successively.
Embodiment 2: a kind of closed cycle fluid unit with mole sieve drier continuous pulp discharge
See Fig. 5, a kind of closed cycle fluid unit of the continuous pulp discharge with mole sieve drier, the pipeline II of equipment 45 described in embodiment 1 increases mole sieve drier 46 form, the air inlet of mole sieve drier leans on the outlet of condensing tower, the air outlet of mole sieve drier to lean on the import of air heater.
Embodiment 3: a kind of closed cycle fluid unit of the continuous pulp discharge with bypass pipe
See Fig. 6, a kind of closed cycle fluid unit of the continuous pulp discharge with bypass pipe, below equipment 47 described in embodiment 2 is done, 2 improvement form, 1, on described pipeline I and pipeline II, be provided with condensing tower bypass pipe interface, described pipeline I and pipeline II are provided with between condensing tower bypass pipe interface the condensing tower bypass pipe 48 of band valve; 2, on the air inlet and air outlet of described mole sieve drier, be provided with mole sieve drier bypass pipe interface, between two interfaces, be provided with the mole sieve drier bypass pipe 49 of band valve.
Embodiment 4: utilize the closed cycle fluid unit of the continuous pulp discharge with bypass pipe described in embodiment 3 to extract the method for volatile component in material, operate according to the following steps:
S1: technological parameter is determined: consider following three factors and formulate technological parameter, 1, condensing tower temperature schedule is formulated according to the volatile materials admixture characteristic that will extract, 2, according to temperature schedule in the sensitive characteristic making machine of material, 3, be criterion with energy-conservation;
S2: start: start blower fan after equipment energising, close the valve on condensing tower bypass pipe and mole sieve drier bypass pipe, start planet blow-off valve, start condensing tower, start mole sieve drier;
S3: reinforced: according to the character of material, material is added by charging valve or atomizer, what feeding quantity was no more than its rated current with blower fan operating current 95% is advisable;
S4: the operation in operation process and process:
S401: operation process: material is dispersed into particulate under the action of high-speed airflow of blower fan and generation thereof, form fluidisation state and high-speed circulating flowing in circulation canal, water in material and volatile component are volatilized fast, enter condensing tower with air-flow through the cloth bag of sack cleaner to be condensed the mixture being collected in condensing tower and obtaining volatile material, operation medium enters air heater heating and uses as air intake air-flow after mole sieve drier deep dehydration; Major part material is separated by cyclone dust collectors and enter the cycle operation of negative-pressure cyclic pipe through ash discharging hole together with fraction air-flow, fraction particle diameter is less and the particulate that volatile component content is little is separated with cyclone dust collectors most of air-flow enters discharge branch road, is discharged after being deposited to bottom by planet blow-off valve;
S402: the operation in operation process:
S40201, technological parameter regulate: the variations in temperature of observing in condensing tower adjusts in good time and makes it not depart from condensing tower temperature schedule; Observe the temperature value of temperature sensor display, the temperature of adjustment air heater output hot blast makes built-in temperature not depart from built-in temperature system in good time;
S40202, to feed in raw material: along with the volatilization of volatile component and planet blow-off valve constantly discharge material, blower fan load can reduce causes blower fan operating current to decline in good time, when operating current lower than its rated current 90% time, feed in raw material in good time; Feeding quantity accomplishes uniformly continous as far as possible, makes blower fan operating current remain between the 90-95% of rated current;
S40203, the volatile component reclaimed in the moisture of mole sieve drier discharge: also containing volatile component in the moisture that mole sieve drier vavuum pump is discharged, condensation of being pressurizeed is reclaimed;
S5, shutdown: after operation completes, close blower fan, condensing tower and mole sieve drier, shutdown of cutting off the electricity supply.
This law also can be used for adding man-hour containing the dry powder process of volatile component material, reclaims volatile component.
Embodiment 5: utilize the closed cycle fluid unit of the continuous pulp discharge with bypass pipe described in embodiment 3 to carry out adding man-hour containing the dry powder process of volatile component material, reduce the method for volatile component loss in material, operate according to the following steps:
S1: technological parameter is determined: consider following three factors and formulate technological parameter, 1, condensing tower temperature schedule is formulated according to the volatile materials admixture characteristic that will extract, 2, according to temperature schedule in the sensitive characteristic making machine of material, 3, be criterion with energy-conservation;
S2: start: start blower fan after equipment energising, opens the valve on condensing tower other energy pipe, and the valve on Molecular regulator sieve drier bypass pipe, to 50% of aperture, starts mole sieve drier, starts planet blow-off valve, keep condensing tower unimpeded but do not start condensing tower;
S3: reinforced: according to the character of material, material is added by charging valve or atomizer, what feeding quantity was no more than its rated current with blower fan operating current 95% is advisable;
S4: the operation in operation process and process:
S401: operation process: material is dispersed into particulate under the action of high-speed airflow of blower fan and generation thereof, form fluidisation state and high-speed circulating flowing in circulation canal, material is able to rapid draing, and most of air-flow enters condensing tower and condensing tower bypass pipe through the cloth bag of sack cleaner and to enter through pipeline II and enter air heater heating after mole sieve drier deep dehydration and use as air intake air-flow; The moisture degree of depth entered in wherein air-flow is separated by mole sieve drier, increases water saturation in operation medium poor, improves the rate of drying of material; Operation medium high for molecular sieve entrance point volatile component concentration is delivered to negative-pressure cyclic pipe by mole sieve drier bypass pipe, increase the concentration of volatile component in operation medium in the first circulation canal, suppress the volatilization of volatile component, simultaneously, also reduce the concentration of molecular sieve air inlet volatile component, reduce the discharge rate of volatile component during regenerating molecular sieve;
S402: the operation in operation process:
S40201, technological parameter regulate: the temperature value observing temperature sensor display, and the temperature that in good time adjustment air heater exports hot blast makes built-in temperature not depart from built-in temperature system;
S40202, to feed in raw material: along with the volatilization of volatile component and planet blow-off valve constantly discharge material, blower fan load can reduce causes blower fan operating current to decline in good time, when operating current lower than its rated current 90% time, feed in raw material in good time; Feeding quantity accomplishes uniformly continous as far as possible, makes blower fan operating current remain between the 90-95% of rated current;
The process of volatile component in the moisture that S40203, mole sieve drier are discharged: containing volatile component in the moisture that mole sieve drier vavuum pump is discharged, condensation of being pressurizeed when needing is reclaimed;
S5, shutdown: after operation completes, close blower fan, condensing tower and mole sieve drier, shutdown of cutting off the electricity supply.
Claims (8)
1. the closed cycle fluid unit of the continuous pulp discharge of a continuous pulp discharge, following improvement is carried out on circulating fluidised bed apparatus basis described in patent of invention 201310748462.7 form: the connection 1, disconnecting sack cleaner branch road and negative-pressure cyclic pipe, is used for discharge using sack cleaner branch road as discharge branch road; 2, the ash discharging hole of cyclone dust collectors is received on negative-pressure cyclic pipe, cyclone dust collectors as one-level material air separation by material and flow separation, the material separated enters negative-pressure cyclic pipe, the problem making material no longer enter discharge branch road to adhere on dust-collecting bag to solve pasty material; 3, air heater is increased and the air-flow air supply heater of being discharged by condensing tower with pipeline uses as air intake air-flow, formation closed circuit circulatory system in negative-pressure cyclic pipe air inlet;
It is characterized in that, be made up of blower fan, malleation circulation pipe I, cyclone dust collectors, malleation circulation pipe II, discharge branch road, negative-pressure cyclic pipe, pipeline I, condensing tower, pipeline II, air heater, pipeline III, blowback air source pressurizing branch road; Malleation circulation pipe I, malleation circulation pipe II are pipelines; The ash discharging hole of cyclone dust collectors is less than air inlet, and cyclone dust collectors import connects with the outlet of malleation circulation pipe I, and cyclone dust collectors exhaust outlet connects with the import of malleation circulation pipe II; Discharge props up route first sack cleaner, the second sack cleaner and planet blow-off valve and is connected in turn, sack cleaner is identical with sack cleaner described in patent of invention 201310748462.7, the import of the first sack cleaner is the import of discharge branch road, the material that planet blow-off valve is collected for discharging discharge branch road, the import of discharge branch road connects with the outlet of malleation circulation pipe II; Negative-pressure cyclic pipe is pipeline, the head end of negative-pressure cyclic pipe is import, tail end is outlet, cyclone dust collectors ash discharging hole interface and feeding device interface is provided with between export and import, feeding device interface has charging valve and/or atomizer, cyclone dust collectors ash discharging hole interface connects with the ash discharging hole of cyclone dust collectors; The import of condensing tower is connected by the exhaust outlet of pipeline I with the first sack cleaner and the second sack cleaner, the outlet of condensing tower is connected with the import of air heater by pipeline II, the outlet of air heater is connected by the import of pipeline III with negative-pressure cyclic pipe, pipeline III is also provided with blowback air source pressurizing tributary interface, blowback air source pressurizing branch road is the pipeline with gas pressurized device, and blowback air source pressurizing branch road is connected between the back-flushing valve import of blowback air source pressurizing tributary interface and the first sack cleaner and the second sack cleaner on pipeline III; The outlet of negative-pressure cyclic pipe, fan inlet, fan outlet, malleation circulation pipe I import is connected successively, forms two closed circulation canals.
2. the closed cycle fluid unit of a kind of continuous pulp discharge according to claim 1, it is characterized in that, the closed cycle fluid unit of described continuous pulp discharge is provided with adjusting device, described adjusting device comprises air intake gas flow temperature adjusting device and rotation speed of fan adjusting device, the temperature that air intake gas flow temperature adjusting device utilizes the output signal of the temperature sensor be arranged on malleation circulation pipe I or malleation circulation pipe II to control air heater output hot blast makes built-in temperature be no more than design temperature, the heat that described rotation speed of fan adjusting device is come for regulating rotation speed of fan to control blower fan kinetic transformation, built-in temperature is made to be no more than design temperature.
3. the closed cycle fluid unit of a kind of continuous pulp discharge according to claim 1 and 2, it is characterized in that, described pipeline II arranges the moisture in the air-flow that mole sieve drier discharges for degree of depth separating and condensing tower, poor with water saturation in increase operation medium, improve the vaporization rate of moisture in material; Described mole sieve drier is the mole sieve drier described in background technology, and the air inlet or air outlet of mole sieve drier are also provided with gas supply interface.
4. the closed cycle fluid unit of a kind of continuous pulp discharge according to claim 1 and 2, it is characterized in that, described pipeline I and pipeline II are provided with condensing tower bypass pipe interface, described pipeline I and pipeline II are provided with between condensing tower bypass pipe interface the condensing tower bypass pipe of band valve.
5. the closed cycle fluid unit of a kind of continuous pulp discharge according to claim 1 or 2 or 3, it is characterized in that, the air inlet and air outlet of described mole sieve drier are provided with mole sieve drier bypass pipe interface, between two interfaces, are provided with the mole sieve drier bypass pipe of band valve.
6. the closed cycle fluid unit of a kind of continuous pulp discharge according to claim 1 or 2 or 3, it is characterized in that, described pipeline I and pipeline II are provided with condensing tower bypass pipe interface, described pipeline I and pipeline II are provided with between condensing tower bypass pipe interface the condensing tower bypass pipe of band valve; The air inlet and air outlet of described mole sieve drier are provided with mole sieve drier bypass pipe interface, between two interfaces, are provided with the mole sieve drier bypass pipe of band valve.
7. utilize the closed cycle fluid unit of continuous pulp discharge described in claim 6 to extract the method for volatile component in material, it is characterized in that, operate according to the following steps:
S1: technological parameter is determined: consider following three factors and formulate technological parameter, 1, condensing tower temperature schedule is formulated according to the volatile materials admixture characteristic that will extract, 2, according to temperature schedule in the sensitive characteristic making machine of material, 3, be criterion with energy-conservation;
S2: start: start blower fan after equipment energising, close the valve on condensing tower bypass pipe and mole sieve drier bypass pipe, start planet blow-off valve, start condensing tower, start mole sieve drier;
S3: reinforced: according to the character of material, material is added by charging valve or atomizer, what feeding quantity was no more than its rated current with blower fan operating current 95% is advisable;
S4: the operation in operation process and process:
S401: operation process: material is dispersed into particulate under the action of high-speed airflow of blower fan and generation thereof, form fluidisation state and high-speed circulating flowing in circulation canal, water in material and volatile component are volatilized fast, enter condensing tower with air-flow through the cloth bag of sack cleaner to be condensed the mixture being collected in condensing tower and obtaining volatile material, operation medium enters air heater heating and uses as air intake air-flow after mole sieve drier deep dehydration; Major part material is separated by cyclone dust collectors and enter the cycle operation of negative-pressure cyclic pipe through ash discharging hole together with fraction air-flow, fraction particle diameter is less and the particulate that volatile component content is little is separated with cyclone dust collectors most of air-flow enters discharge branch road, is discharged after being deposited to bottom by planet blow-off valve;
S402: the operation in operation process:
S40201, technological parameter regulate: the variations in temperature of observing in condensing tower adjusts in good time and makes it not depart from condensing tower temperature schedule; Observe the temperature value of temperature sensor display, the temperature of adjustment air heater output hot blast makes built-in temperature not depart from built-in temperature system in good time;
S40202, to feed in raw material: along with the volatilization of volatile component and planet blow-off valve constantly discharge material, blower fan load can reduce causes blower fan operating current to decline in good time, when operating current lower than its rated current 90% time, feed in raw material in good time; Feeding quantity accomplishes uniformly continous as far as possible, makes blower fan operating current remain between the 90-95% of rated current;
S40203, the volatile component reclaimed in the moisture of mole sieve drier discharge: also containing volatile component in the moisture that mole sieve drier vavuum pump is discharged, condensation of being pressurizeed is reclaimed;
S5, shutdown: after operation completes, close blower fan, condensing tower and mole sieve drier, shutdown of cutting off the electricity supply.
8. utilize the closed cycle fluid unit of continuous pulp discharge described in claim 6 to carry out adding man-hour containing the dry powder process of volatile component material, reduce the method for volatile component loss in material, it is characterized in that, operate according to the following steps:
S1: technological parameter is determined: consider following three factors and formulate technological parameter, 1, condensing tower temperature schedule is formulated according to the volatile materials admixture characteristic that will extract, 2, according to temperature schedule in the sensitive characteristic making machine of material, 3, be criterion with energy-conservation;
S2: start: start blower fan after equipment energising, opens the valve on condensing tower other energy pipe, and the valve on Molecular regulator sieve drier bypass pipe, to 50% of aperture, starts mole sieve drier, starts planet blow-off valve, keep condensing tower unimpeded but do not start condensing tower;
S3: reinforced: according to the character of material, material is added by charging valve or atomizer, what feeding quantity was no more than its rated current with blower fan operating current 95% is advisable;
S4: the operation in operation process and process:
S401: operation process: material is dispersed into particulate under the action of high-speed airflow of blower fan and generation thereof, form fluidisation state and high-speed circulating flowing in circulation canal, material is able to rapid draing, and most of air-flow enters condensing tower and condensing tower bypass pipe through the cloth bag of sack cleaner and to enter through pipeline II and enter air heater heating after mole sieve drier deep dehydration and use as air intake air-flow; The moisture degree of depth entered in wherein air-flow is separated by mole sieve drier, increases water saturation in operation medium poor, improves the rate of drying of material; Operation medium high for molecular sieve entrance point volatile component concentration is delivered to negative-pressure cyclic pipe by mole sieve drier bypass pipe, increase the concentration of volatile component in operation medium in the first circulation canal, suppress the volatilization of volatile component, simultaneously, also reduce the concentration of molecular sieve air inlet volatile component, reduce the discharge rate of volatile component during regenerating molecular sieve;
S402: the operation in operation process:
S40201, technological parameter regulate: the temperature value observing temperature sensor display, and the temperature that in good time adjustment air heater exports hot blast makes built-in temperature not depart from built-in temperature system;
S40202, to feed in raw material: along with the volatilization of volatile component and planet blow-off valve constantly discharge material, blower fan load can reduce causes blower fan operating current to decline in good time, when operating current lower than its rated current 90% time, feed in raw material in good time; Feeding quantity accomplishes uniformly continous as far as possible, makes blower fan operating current remain between the 90-95% of rated current;
The process of volatile component in the moisture that S40203, mole sieve drier are discharged: containing volatile component in the moisture that mole sieve drier vavuum pump is discharged, condensation of being pressurizeed when needing is reclaimed;
S5, shutdown: after operation completes, close blower fan, condensing tower and mole sieve drier, shutdown of cutting off the electricity supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410841767.7A CN104880031A (en) | 2014-12-30 | 2014-12-30 | Closed-circulation fluidized-bed equipment with continuous discharge function and method for applying closed-circulation fluidized-bed equipment |
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| CN201410841767.7A CN104880031A (en) | 2014-12-30 | 2014-12-30 | Closed-circulation fluidized-bed equipment with continuous discharge function and method for applying closed-circulation fluidized-bed equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115283A (en) * | 2015-09-15 | 2015-12-02 | 南京大学环境规划设计研究院有限公司 | Airflow energy-saving drying device and airflow energy-saving drying method |
| CN105641961A (en) * | 2015-12-31 | 2016-06-08 | 昆明特康科技有限公司 | Entire closed-loop circulating fluidized bed as well as usage and application method thereof |
| CN112691417A (en) * | 2019-10-07 | 2021-04-23 | 胡鸣群 | Reversible washing floating bed type reverse sewage treatment system and treatment method thereof |
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2014
- 2014-12-30 CN CN201410841767.7A patent/CN104880031A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115283A (en) * | 2015-09-15 | 2015-12-02 | 南京大学环境规划设计研究院有限公司 | Airflow energy-saving drying device and airflow energy-saving drying method |
| CN105641961A (en) * | 2015-12-31 | 2016-06-08 | 昆明特康科技有限公司 | Entire closed-loop circulating fluidized bed as well as usage and application method thereof |
| CN105641961B (en) * | 2015-12-31 | 2020-02-21 | 昆明特康科技有限公司 | Full closed circulation fluidized bed and its using and using method |
| CN112691417A (en) * | 2019-10-07 | 2021-04-23 | 胡鸣群 | Reversible washing floating bed type reverse sewage treatment system and treatment method thereof |
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