CN208130734U - A kind of Bed Filtration dust pelletizing system - Google Patents
A kind of Bed Filtration dust pelletizing system Download PDFInfo
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- CN208130734U CN208130734U CN201720408051.7U CN201720408051U CN208130734U CN 208130734 U CN208130734 U CN 208130734U CN 201720408051 U CN201720408051 U CN 201720408051U CN 208130734 U CN208130734 U CN 208130734U
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Abstract
The utility model discloses a kind of Bed Filtration dust pelletizing systems,It includes at least one host grain bed filter collector and time granular-layer dust precipitator,Ash-laden gas general pipeline,Clean gas general pipeline and blowback air general pipeline,Ash-laden gas general pipeline conveys ash-laden gas into host grain bed filter collector,Clean gas general pipeline exports the filtered clean gas of host grain bed filter collector,The bottom of host grain bed filter collector is equipped with main ash bucket,Blowback air general pipeline conveys blowback air into host grain bed filter collector,Secondary granular-layer dust precipitator is equipped with the ash-laden gas introducing pipe for being connected to itself and the top of main ash bucket,Ash-laden gas is introduced into conveying dust and gas containing fine powder in Guan Xiangci granular-layer dust precipitator,Clean gas general pipeline exports time filtered clean gas of granular-layer dust precipitator,Blowback air general pipeline conveys blowback air into secondary granular-layer dust precipitator,The bottom of secondary granular-layer dust precipitator is equipped with time ash bucket；Advantage is can to remove to high efficient and reliable the fine dust for being difficult to settle.
Description
Technical field
The utility model relates to a kind of dust removal by filtration systems, more particularly, to a kind of Bed Filtration dust pelletizing system.
Background technique
Bed Filtration dust pelletizing system has unique advantage in gas cleaning at high temperature field.
Such as a kind of patent of invention " granular-layer dust precipitator " of China's bulletin（The applying date is on 01 31st, 2007, public
Announcement number is CN101036846A, Patent No. ZL200710067109.7）Comprising outer housing and along short transverse setting outside
The intracorporal at least one layer of filter device of shell, the top of outer housing are provided with ash-laden gas import, and the lower end of outer housing is provided with dust
Outlet, filter device are provided with independent gas reversing arrangement, net gas general pipeline are connected on gas reversing arrangement and blowback air is total
Pipe, feature is that filter device includes at least one filter element, and filter element includes inner housing, is provided with blow vent on inner housing
And snorkel, be provided with stratum granulosum and air distribution plate in inner housing, blow vent is arranged in the top of stratum granulosum, snorkel setting
The lower section of granulosa, snorkel are laterally pierced by outer housing and connect with gas reversing arrangement.The granular-layer dust precipitator is filtered out excessively
When dirt, inner housing is surrounded by hot air, and inner housing each section is expanded with heat and contract with cold uniformly, and thermal deformation resistant performance is good, so that the grain bed
Filter collector can be used in high temperature and the changeable occasion of temperature, and thermal adaptability is strong, applied widely；When filter device includes simultaneously
, it can be achieved that the continuous filtering of gas, effect are more preferable when multiple filter elements of connection arrangement.
But above-mentioned granular-layer dust precipitator has the following problems in implementation process：Since an inner casing is intracorporal
Blowback throughput when stratum granulosum reverse gas cleaning is 1.5~2.5 times of the average filtration throughput of the intracorporal stratum granulosum of the inner casing,
Therefore the blowback air for the intracorporal stratum granulosum of inner casing that will cause the minimum second layer cannot be intracorporal by the inner casing of minimum first layer
Granulosa is received, thus will cause blowback air carrying dust upruss, and the minimum first layer in the granular-layer dust precipitator
The intracorporal stratum granulosum of inner casing blowback air be even more can only upruss, cause fine dust in minimum first layer to minimum third layer
Between spin, influence fine dust sedimentation discharge.To make blowback air flow downward, although can be using circulating fan in the grain bed mistake
The pumping of filtering dust remover lower part forces blowback air and dust to extract the ash-laden gas for being circulated back to the granular-layer dust precipitator out from lower part
Import, but when temperature is high, dust hardness is big, the blade wear in circulating fan can be very serious, especially contains when in gas
When a large amount of tar, anti-caking tar and dust stratification in circulating fan are a problems.
Summary of the invention
The technical problem to be solved by the utility model is to provide one kind can remove to high efficient and reliable be difficult to settle it is thin
The Bed Filtration dust pelletizing system of dust.
The utility model solves technical solution used by above-mentioned technical problem：A kind of Bed Filtration dust pelletizing system,
Including at least one host grain bed filter collector, ash-laden gas general pipeline, clean gas general pipeline and blowback air general pipeline, the host grain
The top of bed filter collector is connect with the ash-laden gas general pipeline, and the ash-laden gas general pipeline is filtered to the host grain bed
Convey ash-laden gas in deduster, the host grain bed filter collector respectively with the clean gas general pipeline and the blowback
Gas general pipeline connection, the clean gas general pipeline output host grain bed filter collector are dry to obtaining after ash-laden gas filtering
Net gas, the bottom of the host grain bed filter collector are provided with the main ash led directly to the host grain bed filter collector
Bucket, it is characterised in that：The blowback air general pipeline conveys blowback air into the host grain bed filter collector with blowback stream
Change deashing, which further includes at least one granular-layer dust precipitator, the secondary grain bed mistake
The ash-laden gas that the top of the connection secondary granular-layer dust precipitator and the main ash bucket is provided on filtering dust remover introduces
Pipe, the ash-laden gas, which is introduced into pipe and conveys the host grain bed described in being contained in into the secondary granular-layer dust precipitator, to be crossed and filters out
The dust and gas containing fine powder for the fine dust not settled in dirt device, the secondary granular-layer dust precipitator are total with the clean gas respectively
Pipe is connected with the blowback air general pipeline, and the clean gas general pipeline output secondary granular-layer dust precipitator is to containing fine powder
The clean gas obtained after dust and gas filtering, the blowback air general pipeline convey blowback air into the secondary granular-layer dust precipitator
Deashing is fluidized with blowback, the bottom of the secondary granular-layer dust precipitator is provided with and the secondary granular-layer dust precipitator
Straight-through secondary ash bucket.
The top of the secondary ash bucket is connected with the dust-laden blowback air fairlead for exporting dust-laden blowback air, and described contains
The outlet side of dirt blowback air fairlead is connected with cleaning equipment for purifying dust-laden blowback air or the dust-laden blowback air draws
The outlet side concatenation of outlet pipe is connect after drawing valve with the ash-laden gas general pipeline.Here, by dust-laden blowback air fairlead from secondary
The dust-laden blowback air drawn in ash bucket can be sent under clean gas general pipeline by cleaning equipment high-efficient purification, purified blowback air
Equipment is swum, thus there is no clean blowback airs to lose；The dust-laden drawn out of secondary ash bucket by dust-laden blowback air fairlead is anti-
Air blowing can also be introduced directly into ash-laden gas general pipeline, then be filtered；In the case where not set dust-laden blowback air fairlead, right
When each secondary grain bed in secondary granular-layer dust precipitator carries out the fluidisation deashing of blowback in turn, dust-laden blowback air draws through ash-laden gas
Enter pipe and be transmitted back to main ash bucket, enters back into the filtering of host grain bed.
The cleaning equipment includes scrubbing tower and air-introduced machine, the outlet side of the dust-laden blowback air fairlead with it is described
Scrubbing tower air inlet connection, the gas outlet concatenation of the scrubbing tower connects after drawing valve with the input end of the air-introduced machine
It connects, the outlet end of the air-introduced machine exports purified clean blowback air；To each in secondary granular-layer dust precipitator
When secondary grain bed carries out the fluidisation deashing of blowback in turn, the dust-laden blowback air drawn through dust-laden blowback air fairlead is washed by scrubbing tower
It washs, the clean blowback air of scrubbing tower output is sent to the upstream device of clean gas general pipeline by air-introduced machine；Valve is drawn in actual treatment
It can also be serially connected between the outlet side of dust-laden blowback air fairlead and the air inlet of scrubbing tower, only because dust-laden blowback air is drawn
The temperature for the dust-laden blowback air that pipe is drawn is relatively high, also higher to the temperature requirement for drawing valve in this way, and is suitable for high temperature
The price of valve is relatively high, therefore can will draw valve and be set between the gas outlet of scrubbing tower and the input end of air-introduced machine, reduces
Draw the price of valve.
Or the cleaning equipment includes gas cooler, bag filter and air-introduced machine, the dust-laden blowback air draws
The outlet side of outlet pipe is connect with the input terminal of the gas cooler, the output end of the gas cooler and the cloth
The input terminal of bag dust collector connects, the import after the output end concatenation extraction valve of the bag filter with the air-introduced machine
The outlet end of end connection, the air-introduced machine exports purified clean blowback air；In to secondary granular-layer dust precipitator
When each secondary grain bed carries out the fluidisation deashing of blowback in turn, the dust-laden blowback air drawn through dust-laden blowback air fairlead is passed sequentially through
Clean blowback air is obtained after gas cooler and bag filter purification, then by air-introduced machine clean blowback air to be sent to clean gas total
The upstream device of pipe；Outlet side and gas cooler that valve can also be serially connected with dust-laden blowback air fairlead are drawn in actual treatment
Input terminal between, only because the temperature for the dust-laden blowback air that dust-laden blowback air fairlead is drawn is relatively high, in this way to drawing
The temperature requirement of valve is also higher out, and the price for being suitable for the valve of high temperature is relatively high, therefore can will draw valve and be set to cloth bag
Between the output end of deduster and the input end of air-introduced machine, the price for drawing valve is reduced.
The upstream of the blowback air general pipeline is connected with back blowing machine, and the input end of the back blowing machine is passed through completely
Gas is provided between the outlet end of the back blowing machine and the inlet end of the blowback air general pipeline for heating clean gas
It is provided between the outlet end of heater or the back blowing machine and the inlet end of the blowback air general pipeline dry for mixing
The mixer of net gas and high-temperature flue gas, the mixer connection are provided with the burner of high-temperature flue gas.Here, using heating
Device heats the clean gas of low temperature, temperature needed for the clean gas after making heating reaches blowback；It can also be by being mixed into high-temperature flue gas
Temperature needed for the clean gas of low temperature is increased to blowback, for the mixed volume for reducing high-temperature flue gas, oxygen-enriched combustion is can be used in burner
It burns.
The upstream of the blowback air general pipeline is connected with back blowing machine, and the input end of the back blowing machine is passed through high temperature cigarette
Gas.Here, can be connected to the input end of back blowing machine with high-temperature flue gas pipeline, it is passed directly into high-temperature flue gas, is met instead with temperature
Required high-temperature flue gas is blown as blowback air.
It is provided at least one host grain bed in the host grain bed filter collector, is arranged on the host grain bed
The master is stretched out in the outer end of the main channel for having the clean gas for obtaining after being filtered to draw, the main channel
Grain bed filter collector outside, and respectively by concatenation the net air valve of master be communicated with the net gas branched pipe of trunk and by the master of concatenation it is anti-
Purge valve is communicated with main blowback air branched pipe, is communicated with master by the net gas branch pipe valve of trunk concatenated on the clean gas general pipeline
Clean gas branch pipe, the net gas branch pipe of the trunk are connected to the net gas branched pipe of the trunk, are led on the blowback air general pipeline
The main blowback air manifold valve for crossing concatenation is communicated with main blowback gas branch pipe, the main blowback gas branch pipe and the main blowback air point
Branch pipe connection；The main shock depositing dust plate for strengthening dust settling is provided in the main ash bucket.Here, utilizing main net air valve
With the unlatching of the net gas branch pipe valve of trunk, the clean gas that can will be obtained after the host grain bed filtering in host grain bed filter collector
Pass sequentially through the net gas branched pipe of main channel, trunk, the net gas branch pipe of trunk and clean gas general pipeline output；Utilize main blowback gas branch pipe
Blowback air can be passed sequentially through blowback air general pipeline, main blowback gas branch pipe, main blowback air branch by the unlatching of valve and main blowback air valve
Pipe, main channel input.
It is provided at least one grain bed in the secondary granular-layer dust precipitator, is arranged on the secondary grain bed
Described secondary is stretched out in the secondary snorkel for having the clean gas for obtaining after being filtered to draw, the outer end of the secondary snorkel
Outside grain bed filter collector, and respectively by time net air valve of concatenation be communicated with time clean gas branched pipe and by concatenation time instead
Purge valve is communicated with time blowback air branched pipe, is communicated on the clean gas general pipeline by time clean gas branch pipe valve of concatenation secondary
Clean gas branch pipe, time clean gas branch pipe are connected to time clean gas branched pipe, lead on the blowback air general pipeline
The secondary blowback air manifold valve for crossing concatenation is communicated with time blowback gas branch pipe, the secondary blowback gas branch pipe and the secondary blowback air point
Branch pipe connection；The secondary shock depositing dust plate for strengthening dust settling is provided in the secondary ash bucket.Here, utilizing time net air valve
With the unlatching of secondary clean gas branch pipe valve, the clean gas that can will be obtained after the secondary Bed Filtration in time granular-layer dust precipitator
Pass sequentially through time snorkel, secondary clean gas branched pipe, secondary clean gas branch pipe and clean gas general pipeline output；Utilize secondary blowback gas branch pipe
Blowback air, can be passed sequentially through blowback air general pipeline, secondary blowback gas branch pipe, secondary blowback air branch by the unlatching of valve and time blowback air valve
Pipe, the input of secondary snorkel, fluidize deashing to the secondary grain bed blowback in secondary granular-layer dust precipitator.
Time clean gas branch pipe is communicated with by time clean gas branch pipe valve of concatenation on the clean gas general pipeline, described is anti-
Time blowback gas branch pipe, the secondary granular-layer dust precipitator are communicated with by the secondary blowback air manifold valve concatenated on air blowing general pipeline
In be provided at least one time grain bed, the clean gas extraction for obtaining after being filtered is provided on secondary grain bed
Secondary snorkel, the outer end of the secondary snorkel is stretched out outside secondary granular-layer dust precipitator, and leading to by concatenation
Tracheae valve is connected to time clean gas branch pipe and the secondary blowback gas branch pipe respectively.Here, eliminate time net air valve and
Secondary clean gas branched pipe, and time blowback air valve and time blowback air branched pipe are eliminated, simplify pipeline；Using Ventilating duct valve and time
The unlatching of clean gas branch pipe valve and the closing of secondary blowback air manifold valve can will pass through the secondary grain bed in time granular-layer dust precipitator
The clean gas obtained after filtering passes sequentially through time snorkel, secondary clean gas branch pipe and clean gas general pipeline output；Utilize secondary blowback air
Blowback air can be passed sequentially through blowback air general pipeline, secondary by the unlatching of manifold valve and Ventilating duct valve and the closing of secondary clean gas branch pipe valve
Blowback gas branch pipe and time snorkel input, fluidize deashing to the secondary grain bed blowback in secondary granular-layer dust precipitator.
Upstream end on the net gas branch pipe of the trunk positioned at the net gas branch pipe valve of trunk, which is connected with, has concatenated main row
The main exhaust pipeline of air valve, the ash-laden gas general pipeline by be serially connected with the main ash-laden gas air intake branch of main ash-laden gas intake valve with
The top of the host grain bed filter collector is connected to, and the main ash-laden gas is located on the main ash-laden gas air intake branch
The main air inlet pipe road for having concatenated master air suction valve is connected at the downstream of intake valve.When host grain bed filter collector need preheat or
When displacement, thermal medium or displacement gas are entered in host grain bed filter collector by main air inlet pipe road, by main exhaust pipeline and
Outside main ash discharging hole discharge host grain bed filter collector.
The upstream end for being located at time clean gas branch pipe valve on time clean gas branch pipe, which is connected with, has concatenated time row
The secondary exhaust pipe of air valve, the ash-laden gas, which introduces on pipe, is serially connected with time ash-laden gas intake valve, and the ash-laden gas introduces pipe
It is upper that the secondary admission line for having concatenated time intake valve is connected at the downstream of the secondary ash-laden gas intake valve.When secondary grain bed
When filter collector needs to preheat or replace, thermal medium or displacement gas pass through time admission line and enter time granular-layer dust precipitator
In, it is discharged outside time granular-layer dust precipitator by secondary exhaust pipe and time ash discharging hole.
Compared with prior art, the utility model has the advantage of：
1）Each host grain bed in host grain bed filter collector fluidizes deashing, i.e. host grain bed mistake using online blowback
Filtering dust remover carries out the filtering of ash-laden gas and the fluidisation deashing of blowback in turn to each host grain bed simultaneously, in this way in blowback
The throughput of ash-laden gas general pipeline is caused to fluctuate in journey small, so that the upstream equipment or downstream to the Bed Filtration dust pelletizing system are set
Standby steady operation influences small.
2）At least one granular-layer dust precipitator is added, and introducing pipe using ash-laden gas in time will be in host grain bed
The fine dust not settled in filter collector is brought into time granular-layer dust precipitator and is filtered, and can promote the filtering of host grain bed in this way
Dust settling in deduster prevents fine dust from spinning between each host grain bed of the lower part of host grain bed filter collector
And enrichment, i.e., it eliminates to high efficient and reliable in host grain bed filter collector and is difficult to the fine dust settled, and can ensure that host grain
Each host grain bed of the lower part of bed filter collector balanced with each host grain bed of upper part can filter, and reduce host grain bed
The upper and lower temperature difference of filter collector prevents the lower part of host grain bed filter collector from condensate occurs（Such as tar）Precipitation.
3）For the clean pneumatic transmission obtained after the filtering of secondary granular-layer dust precipitator to clean gas general pipeline, there is no clean gas to damage
It loses；Secondary granular-layer dust precipitator fluidizes deashing using online blowback fluidisation deashing or offline blowback, and online blowback fluidizes deashing
Deashing is fluidized simultaneously with the blowback in turn to each secondary grain bed to the filtering of the dust and gas containing fine powder for secondary granular-layer dust precipitator
It carries out, offline blowback fluidisation deashing is that time granular-layer dust precipitator is first to the filtering of the dust and gas containing fine powder, to secondary grain bed mistake
The fluidisation deashing of blowback in turn of each secondary grain bed in filtering dust remover is rear.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the Bed Filtration dust pelletizing system of embodiment one；
Fig. 2 is the structural schematic diagram of the Bed Filtration dust pelletizing system of embodiment two；
Fig. 3 is the structural schematic diagram of the Bed Filtration dust pelletizing system of embodiment three；
Fig. 4 is the structural schematic diagram of the Bed Filtration dust pelletizing system of example IV；
Fig. 5 is the structural schematic diagram of the Bed Filtration dust pelletizing system of embodiment five；
Fig. 6 is the structural schematic diagram of the Bed Filtration dust pelletizing system of embodiment six；
Fig. 7 is the structural schematic diagram of the Bed Filtration dust pelletizing system of embodiment seven；
Fig. 8 is the structural schematic diagram of the Bed Filtration dust pelletizing system of embodiment eight.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
Embodiment one：
A kind of Bed Filtration dust pelletizing system that the present embodiment proposes, as shown in Figure 1 comprising three host grain bed filterings
1, one granular-layer dust precipitator 2 of deduster, ash-laden gas general pipeline 3, clean gas general pipeline 4 and blowback air general pipeline 5, a master
Six layers, two every layer totally ten two host grain beds 11 are provided in grain bed filter collector 1, host grain bed filter collector 1
Top is connect with ash-laden gas general pipeline 3, specially ash-laden gas general pipeline 3 by be serially connected with the main ash-laden gas of main ash-laden gas intake valve 31 into
Gas branch pipe 32 is connected to the top of host grain bed filter collector 1, and ash-laden gas general pipeline 3 is defeated into host grain bed filter collector 1
Ash-laden gas is sent, host grain bed filter collector 1 is connect with clean gas general pipeline 4 and blowback air general pipeline 5 respectively, and clean gas general pipeline 4 is defeated
Host grain bed filter collector 1 is to the clean gas obtained after ash-laden gas filtering, the bottom setting of host grain bed filter collector 1 out
There is the main ash bucket 61 led directly to host grain bed filter collector 1, be provided with main ash discharging hole 62 on the bottom of main ash bucket 61, at main
The muti-piece that the lower section of undermost host grain bed 11 in grain bed filter collector 1 is provided with staggered arrangement is heavy for strengthening dust
The main shock depositing dust plate 65 of drop, main shock depositing dust plate 65 is located in main ash bucket 61, and blowback air general pipeline 5 is to host grain bed dust removal by filtration
Blowback air is conveyed in device 1, deashing is fluidized with online blowback, be provided with four layers, every layer one in one granular-layer dust precipitator 2
A secondary grain bed 21, the top of secondary granular-layer dust precipitator 2 are provided with the top for being connected to time granular-layer dust precipitator 2 and master
The ash-laden gas on the top of ash bucket 61 introduces pipe 7, and ash-laden gas introduces the inlet end that pipe 7 protrudes into the top of main ash bucket 61 and is particularly located at
The underface of undermost host grain bed 11 in host grain bed filter collector 1, ash-laden gas, which introduces on pipe 7, is serially connected with time dust-laden
Gas intake valve 71, ash-laden gas, which is introduced into pipe 7 and conveys into secondary granular-layer dust precipitator 2, to be contained in host grain bed filter collector 1
The dust and gas containing fine powder for the fine dust not settled, secondary granular-layer dust precipitator 2 respectively with clean gas general pipeline 4 and blowback air general pipeline 5
Connection, clean gas general pipeline 4 export time granular-layer dust precipitator 2 to the clean gas obtained after the filtering of dust and gas containing fine powder, blowback air
General pipeline 5 conveys blowback air into secondary granular-layer dust precipitator 2 and fluidizes deashing, the bottom of secondary granular-layer dust precipitator 2 with blowback
Portion is provided with the secondary ash bucket 63 straight-through with time granular-layer dust precipitator 2, and time ash discharging hole 64 is provided on the bottom of secondary ash bucket 63,
The lower section of undermost secondary grain bed 21 in secondary granular-layer dust precipitator 2 is provided with the muti-piece of staggered arrangement for strengthening
The secondary shock depositing dust plate 66 of dust settling, secondary shock depositing dust plate 66 are located in time ash bucket 63.In the Bed Filtration dust pelletizing system
Host grain bed filter collector 1 in each host grain bed 11 using online blowback fluidize deashing, i.e., host grain bed, which is crossed, filters out
Dirt device 1 carries out the filtering of ash-laden gas and the fluidisation deashing of blowback in turn to each host grain bed 11 simultaneously, in this way in blowback
The throughput of ash-laden gas general pipeline 3 is caused to fluctuate in journey small, thus upstream equipment or downstream to the Bed Filtration dust pelletizing system
The steady operation of equipment influences small；One granular-layer dust precipitator 2 is added, and introduces pipe 7 using ash-laden gas and in time will
The fine dust not settled in host grain bed filter collector 1 is brought into time granular-layer dust precipitator 2 and is filtered, and can promote in this way
Dust settling in host grain bed filter collector 1 prevents fine dust in each master of the lower part of host grain bed filter collector 1
It spins and is enriched between grain bed 11, i.e., eliminate to high efficient and reliable in host grain bed filter collector 1 and be difficult to the fine powder settled
Dirt, and can ensure that each host grain bed 11 of the lower part of host grain bed filter collector 1 can be with each host grain bed of upper part
11 balanced filterings, reduce the upper and lower temperature difference of host grain bed filter collector 1, prevent the lower part of host grain bed filter collector 1 from sending out
Raw and cold condensate（Such as tar）Precipitation；Obtained clean pneumatic transmission is to clean gas general pipeline after the filtering of secondary granular-layer dust precipitator 2
4, there is no clean gas to lose；Secondary granular-layer dust precipitator 2 fluidizes deashing using online blowback fluidisation deashing or offline blowback,
Online blowback fluidisation deashing is time granular-layer dust precipitator 2 filtering and the wheel to each secondary grain bed 21 to the dust and gas containing fine powder
Stream blowback fluidisation deashing carries out simultaneously, and offline blowback fluidisation deashing is mistake of time granular-layer dust precipitator 2 to the dust and gas containing fine powder
Filter formerly, to the blowback in turn of each secondary grain bed 21 in secondary granular-layer dust precipitator 2 fluidizes deashing in rear, ash-removal effect
It is good.
In the present embodiment, the upstream of blowback air general pipeline 5 is connected with back blowing machine 91, and the input end of back blowing machine 91 is passed through
Clean gas, the input end of back blowing machine 91 and external clean gas air-introduced machine when actual treatment（It is not shown in the figure）Outlet end connect
Clean gas gas holder logical or with outside（It is not shown in the figure）Connection is connected to clean gas general pipeline 4 to be passed through clean gas, back-blowing
It is provided with the heater 92 for heating clean gas between the outlet end of machine 91 and the inlet end of blowback air general pipeline 5, utilizes heating
Device 92 heats the clean gas of low temperature, temperature needed for the clean gas after making heating reaches blowback.
In the present embodiment, the top of secondary ash bucket 63 is connected with the dust-laden blowback air fairlead for exporting dust-laden blowback air
81, the inlet end that dust-laden blowback air fairlead 81 protrudes into the top of time ash bucket 63 is particularly located at time granular-layer dust precipitator 2
In undermost secondary grain bed 21 underface, the outlet side of dust-laden blowback air fairlead 81 is connected with anti-for purifying dust-laden
The cleaning equipment of air blowing, can be by cleaning equipment by the dust-laden blowback air that dust-laden blowback air fairlead 81 is drawn out of secondary ash bucket 63
High-efficient purification, purified blowback air can be sent to the upstream device of clean gas general pipeline 4, and thus there is no clean blowback airs to damage
It loses.Here, cleaning equipment includes scrubbing tower 83 and air-introduced machine 84, outlet side and the scrubbing tower 83 of dust-laden blowback air fairlead 81
Air inlet connection, the gas outlet concatenation of scrubbing tower 83 are connect after drawing valve 82 with the input end of air-introduced machine 84, and air-introduced machine 84 goes out
Mouth end exports purified clean blowback air；It is carried out in turn to each secondary grain bed 21 in secondary granular-layer dust precipitator 2
When blowback fluidizes deashing, the dust-laden blowback air drawn through dust-laden blowback air fairlead 81 is washed by scrubbing tower 83, and scrubbing tower 83 is defeated
Clean blowback air out is sent to the upstream device of clean gas general pipeline 4 by air-introduced machine 84；Valve 82 is drawn in actual treatment to go here and there
It is connected between the outlet side of dust-laden blowback air fairlead 81 and the air inlet of scrubbing tower 83, only because dust-laden blowback air fairlead
The temperature of the 81 dust-laden blowback airs drawn is relatively high, also higher to the temperature requirement for drawing valve 82 in this way, and is suitable for high temperature
Valve price it is relatively high, therefore can by draw valve 82 be set to scrubbing tower 83 gas outlet and air-introduced machine 84 input end it
Between, reduce the price for drawing valve 82.
In the present embodiment, the main ventilation that the clean gas for obtaining after being filtered is drawn is provided on host grain bed 11
The outer end of pipe 12, main channel 12 is stretched out outside host grain bed filter collector 1, and is connected to respectively by the net air valve 44 of master of concatenation
There is the net gas branched pipe 41 of trunk and main blowback air branched pipe 54, clean gas general pipeline 4 are communicated with by the main blowback air valve 53 of concatenation
The upper net gas branch pipe valve 42 of trunk by concatenation is communicated with the net gas branch pipe 43 of trunk, the net gas branch pipe 43 of trunk and trunk Jing Qi branch
Pipe 41 is connected to, and is communicated with main blowback gas branch pipe 56, main blowback air by the main blowback air manifold valve 55 of concatenation on blowback air general pipeline 5
Branch pipe 56 is connected to main blowback air branched pipe 54.Here, the unlatching of utilization main net air valve 44 and the net gas branch pipe valve 42 of trunk, can incite somebody to action
The clean gas obtained after the host grain bed 11 in host grain bed filter collector 1 filters passes sequentially through main channel 12, trunk
Net gas branched pipe 41, the net gas branch pipe 43 of trunk and clean gas general pipeline 4 are exported；Utilize main blowback air manifold valve 55 and main blowback air valve
Blowback air can be passed sequentially through blowback air general pipeline 5, main blowback gas branch pipe 56, main blowback air branched pipe 54, main ventilation by 53 unlatching
Pipe 12 inputs.
In the present embodiment, the secondary ventilation that the clean gas for obtaining after being filtered is drawn is provided on secondary grain bed 21
The outer end of pipe 22, secondary snorkel 22 is stretched out outside time granular-layer dust precipitator 2, and is connected to respectively by time net air valve 45 of concatenation
There is time clean gas branched pipe 46 and time blowback air branched pipe 58, clean gas general pipeline 4 are communicated with by the secondary blowback air valve 57 of concatenation
The upper time clean gas branch pipe valve 47 by concatenation is communicated with time clean gas branch pipe 48, secondary clean gas branch pipe 48 and time clean gas branch
Pipe 46 is connected to, and is communicated with time blowback gas branch pipe 51, secondary blowback air by the secondary blowback air manifold valve 59 of concatenation on blowback air general pipeline 5
Branch pipe 51 is connected to time blowback air branched pipe 58.It, can will here, using the unlatching of time net air valve 45 and time clean gas branch pipe valve 47
Obtained clean gas passes sequentially through time snorkel 22, secondary dry after the secondary grain bed 21 in secondary granular-layer dust precipitator 2 filters
Net gas branched pipe 46, secondary clean gas branch pipe 48 and clean gas general pipeline 4 are exported；Utilize secondary blowback air manifold valve 59 and time blowback air valve
Blowback air can be passed sequentially through blowback air general pipeline 5, secondary blowback gas branch pipe 51, secondary blowback air branched pipe 58, secondary ventilation by 57 unlatching
Pipe 22 inputs, and fluidizes deashing to 21 blowback of secondary grain bed in secondary granular-layer dust precipitator 2.
In the present embodiment, ash-laden gas introduces pipe 7 and is made of ash-laden gas extraction branch pipe 72 and ash-laden gas gathering tube 73, dust-laden
The inlet end that gas draws branch pipe 72 protrudes into the top of main ash bucket 61 and is located at undermost in host grain bed filter collector 1
The underface of host grain bed 11, ash-laden gas draw and are serially connected with branch pipe valve 74 on branch pipe 72, and ash-laden gas draws the outlet of branch pipe 72
End is connected to ash-laden gas gathering tube 73, and secondary ash-laden gas intake valve 71 is serially connected on ash-laden gas gathering tube 73, ash-laden gas gathering tube 73
Outlet side be connected to the top of time granular-layer dust precipitator 2.
The course of work of the Bed Filtration dust pelletizing system of the present embodiment is：By in three host grain bed filter collectors 1
Totally three ten six 11 pairs of host grain bed ash-laden gas from ash-laden gas general pipeline 3 carry out parallel filtering, what is obtained after filtering is clean
Gas is come together in clean gas general pipeline 4 and is exported by main channel 12, the net gas branched pipe 41 of trunk, the net gas branch pipe 43 of trunk；Blowback
The blowback air that gas general pipeline 5 is introduced is after main blowback gas branch pipe 56, main blowback air branched pipe 54, main channel 12 to host grain bed 11
Carry out blowback and fluidize deashing, blowback air mixes with ash-laden gas, relatively coarse granule in ash-laden gas and by blowback air from host grain bed 11
The particle of the reunion thickening taken out of is deposited to main ash bucket 61 and is discharged, and the fine dust not settled in ash-laden gas and blowback air is hit through master
It hits after the depositing dust of depositing dust plate 65 to be introduced into pipe 7 by ash-laden gas and take in time granular-layer dust precipitator 2 and filter, effectively prevent thin
Dust is spinned and is enriched between the host grain bed 11 of the lower part of host grain bed filter collector 1, through secondary granular-layer dust precipitator 2
The clean gas obtained after filtering passes through time snorkel 22, secondary clean gas branched pipe 46, secondary clean gas branch pipe 48 and comes together in clean gas
It is exported in general pipeline 4；The blowback air that blowback air general pipeline 5 is introduced is through time blowback gas branch pipe 51, secondary blowback air branched pipe 58, secondary snorkel
22 inputs carry out blowback to secondary grain bed 21 and fluidize deashing, and the dust-laden blowback air of secondary granular-layer dust precipitator 2 is from dust-laden blowback
Gas fairlead 81 is taken out of, and the clean blowback air after washed tower 83 washs is set by the downstream that air-introduced machine 84 is sent to clean gas general pipeline 4
It is standby.
The Bed Filtration dust pelletizing system of the present embodiment is suitable for having condensate when filtering cooling（Such as tar）What is be precipitated contains
Dust and gas, such as the Low Temperature Thermal of coal, biomass.
Embodiment two：
A kind of Bed Filtration dust pelletizing system that the present embodiment proposes, as shown in Fig. 2, the grain bed mistake of itself and embodiment one
The structure of filtering dust collecting system is essentially identical, the difference is that only：The upstream of blowback air general pipeline 5 is connected with back blowing machine 91, instead
The input end of hair dryer 91 is passed through clean gas, the input end and external clean gas air-introduced machine of back blowing machine 91 when actual treatment
（It is not drawn into）Outlet end connection or be connected to external clean gas gas holder to be passed through clean gas, the outlet end of back blowing machine 91 and
The mixer 93 for mixing clean gas and high-temperature flue gas is provided between the inlet end of blowback air general pipeline 5, mixer 93 connects
It is provided with the burner 94 of high-temperature flue gas, temperature needed for the clean gas of low temperature is increased to blowback by being mixed into high-temperature flue gas,
For the mixed volume for reducing high-temperature flue gas, oxygen-enriched combusting is can be used in burner 94.Cleaning equipment includes that gas cooler 85, cloth bag remove
The outlet side of dirt device 86 and air-introduced machine 84, dust-laden blowback air fairlead 81 is connect with the input terminal of gas cooler 85, and gas is cold
But the output end of device 85 is connect with the input terminal of bag filter 86, the output end of bag filter 86 concatenation draw after valve 82 with
The input end of air-introduced machine 84 connects, and the outlet end of air-introduced machine 84 exports purified clean blowback air；To secondary Bed Filtration
When each secondary grain bed 21 in deduster 2 carries out the fluidisation deashing of blowback in turn, contain through what dust-laden blowback air fairlead 81 was drawn
Dirt blowback air obtains clean blowback air after passing sequentially through gas cooler 85 and the purification of bag filter 86, then will by air-introduced machine 84
Clean blowback air is sent to the upstream device of clean gas general pipeline 4；Valve 82 is drawn in actual treatment can also be serially connected with dust-laden blowback air
Between the outlet side of fairlead 81 and the input terminal of gas cooler 85, only because the extraction of dust-laden blowback air fairlead 81 contains
The temperature of dirt blowback air is relatively high, also higher to the temperature requirement for drawing valve 82 in this way, and is suitable for the price of the valve of high temperature
It is relatively high, therefore can will draw valve 82 and be set between the output end of bag filter 86 and the input end of air-introduced machine 84, it drops
The low price for drawing valve 82.
Since used cleaning equipment is different, the Bed Filtration dust pelletizing system of the present embodiment is suitable for filtering drop
Frozen-free object when warm（Such as tar）The ash-laden gas of precipitation.
Embodiment three：
A kind of Bed Filtration dust pelletizing system that the present embodiment proposes, as shown in figure 3, the grain bed mistake of itself and embodiment one
The structure of the Bed Filtration dust pelletizing system of the structure or embodiment two of filtering dust collecting system is essentially identical, the difference is that only：
The upstream of blowback air general pipeline 5 is connected with back blowing machine 91, and the input end of back blowing machine 91 is passed through high-temperature flue gas, and when actual treatment will
The input end and high-temperature flue gas pipeline of back blowing machine 91（It is not shown in the figure）Connection, is passed directly into high-temperature flue gas, is met with temperature
High-temperature flue gas needed for blowback is as blowback air.Dust-laden blowback air fairlead 81 outlet side concatenation draw valve 82 after with ash-laden gas
The connection of general pipeline 3 closes time clean gas branch pipe valve 47 and time ash-laden gas intake valve 71 when blowback, passes through dust-laden blowback air fairlead 81
The dust-laden blowback air drawn out of secondary ash bucket 63 is introduced directly into after the muti-piece time in secondary ash bucket 63 hits 66 depositing dust of depositing dust plate
In ash-laden gas general pipeline 3, then it is filtered.
It is directly connect with ash-laden gas general pipeline 3 after drawing valve 82 due to the outlet side concatenation of dust-laden blowback air fairlead 81, because
The Bed Filtration dust pelletizing system of this present embodiment is suitable for being easy when filter being agglomerated into coarse granule and the dust that is easy to sedimentation.
Example IV：
A kind of Bed Filtration dust pelletizing system that the present embodiment proposes, as shown in figure 4, the grain bed mistake of itself and embodiment three
The structure of filtering dust collecting system is essentially identical, the difference is that only：It eliminates dust-laden blowback air fairlead 81 and is serially connected with it
The extraction valve 82 at gas end carries out offline to each secondary grain bed 21 in secondary granular-layer dust precipitator 2（Close time clean gas
Manifold valve 47）In turn when blowback fluidisation deashing, dust-laden blowback air introduces pipe 7 through ash-laden gas and is transmitted back to main ash bucket 61, through main ash bucket
After main shock depositing dust plate 65 in 61 strengthens dust settling, the filtering of host grain bed 11 is entered back into.
The Bed Filtration dust pelletizing system of the present embodiment is suitable for being easy when filtering being agglomerated into coarse granule and being easy to sedimentation
Dust.
Embodiment five：
A kind of Bed Filtration dust pelletizing system that the present embodiment proposes, as shown in figure 5, the grain bed mistake of itself and embodiment two
The structure of filtering dust collecting system is essentially identical, the difference is that only：Cleaning equipment includes scrubbing tower 83 and air-introduced machine 84, and dust-laden is anti-
The outlet side of air blowing fairlead 81 is connect with the air inlet of scrubbing tower 83, the gas outlet of scrubbing tower 83 concatenation draw after valve 82 with draw
The input end of blower 84 connects, and the outlet end of air-introduced machine 84 exports purified clean blowback air；It is removed to secondary Bed Filtration
When each secondary grain bed 21 in dirt device 2 carries out the fluidisation deashing of blowback in turn, the dust-laden through the extraction of dust-laden blowback air fairlead 81
Blowback air is washed by scrubbing tower 83, and the clean blowback air that scrubbing tower 83 exports is sent to the downstream of clean gas general pipeline 4 by air-introduced machine 84
Equipment.
Embodiment six：
A kind of Bed Filtration dust pelletizing system that the present embodiment proposes, as shown in fig. 6, the grain bed mistake of itself and embodiment one
The structure of filtering dust collecting system is essentially identical, the difference is that only：The upstream of blowback air general pipeline 5 is connected with back blowing machine 91, instead
The input end of hair dryer 91 is passed through high-temperature flue gas, by the input end of back blowing machine 91 and high-temperature flue gas pipeline when actual treatment（Figure
In be not shown）Connection, is passed directly into high-temperature flue gas, and high-temperature flue gas needed for meeting blowback using temperature is as blowback air.
Cleaning equipment in above-described embodiment one, two, five and six can also be substituted by the cleaning equipment of existing other maturations；
The technology that the blowback air of required temperature is obtained in above-mentioned each embodiment can also be by the technical substitution of existing other maturations；It obtains
The technology and cleaning equipment of the blowback air of required temperature or dust-laden blowback air is directly passed through ash-laden gas general pipeline 3 again can be any
Combination of two.
Embodiment seven：
In above-mentioned each embodiment, time net air valve 45 and time clean gas branched pipe 46 can be saved, and save time blowback air valve
57 and time blowback air branched pipe 58, to simplify pipeline, as shown in fig. 7, passing through time clean gas branch pipe of concatenation on clean gas general pipeline 4
Valve 47 is communicated with time clean gas branch pipe 48, and the secondary blowback air manifold valve 59 for passing through concatenation on blowback air general pipeline 5 is communicated with time blowback
Gas branch pipe 51 is provided with the secondary snorkel 22 that the clean gas for obtaining after being filtered is drawn, secondary ventilation on secondary grain bed 21
The outer end of pipe 22 is stretched out outside time granular-layer dust precipitator 2, and by the Ventilating duct valve 23 of concatenation respectively with secondary clean gas branch pipe
48 are connected to time blowback gas branch pipe 51.Here, unlatching and secondary blowback air using Ventilating duct valve 23 and secondary clean gas branch pipe valve 47
The closing of manifold valve 59, can be by the clean gas obtained after the secondary grain bed 21 in time granular-layer dust precipitator 2 filters successively
It is exported by secondary snorkel 22, secondary clean gas branch pipe 48 and clean gas general pipeline 4；Utilize secondary blowback air manifold valve 59 and Ventilating duct valve
Blowback air, can be passed sequentially through blowback air general pipeline 5, secondary blowback gas branch pipe 51 by 23 unlatching and the closing of secondary clean gas branch pipe valve 47
It is inputted with secondary snorkel 22, deashing is fluidized to 21 blowback of secondary grain bed in secondary granular-layer dust precipitator 2.
Embodiment eight：
In above-mentioned each embodiment, consider that host grain bed filter collector 1 needs preheating or displacement and secondary Bed Filtration
Deduster 2 needs to preheat or replace, and adds component, as shown in figure 8, being specially：It is located at the net gas of trunk on the net gas branch pipe 43 of trunk
The upstream end of manifold valve 42 is connected with the main exhaust pipeline 94 for having concatenated main exhaust valve 93, and thermal medium or displacement gas pass through main exhaust
Pipeline 94 and main ash discharging hole 62 are discharged outside host grain bed filter collector 1, and main ash-laden gas is located on main ash-laden gas air intake branch 32
The main air inlet pipe road 96 for having concatenated master air suction valve 95 is connected at the downstream of intake valve 31, thermal medium or displacement gas pass through main air inlet
Pipeline 96 enters in host grain bed filter collector 1；It is located at time upstream end of clean gas branch pipe valve 47 on secondary clean gas branch pipe 48
It is connected with the secondary exhaust pipe 98 for having concatenated time exhaust valve 97, thermal medium or displacement gas pass through time exhaust pipe 98 and time ash discharging hole
64 are discharged outside time granular-layer dust precipitator 2, and ash-laden gas is introduced on pipe 7 to be located at time downstream of ash-laden gas intake valve 71 and is connected with
The secondary admission line 90 of time intake valve 99 is concatenated, thermal medium or displacement gas pass through time admission line 90 and enter time Bed Filtration
In deduster 2.
Claims (10)
1. a kind of Bed Filtration dust pelletizing system, including at least one host grain bed filter collector, ash-laden gas general pipeline, clean gas
The top of general pipeline and blowback air general pipeline, the host grain bed filter collector are connect with the ash-laden gas general pipeline, described
Ash-laden gas general pipeline conveys ash-laden gas, the host grain bed filter collector difference into the host grain bed filter collector
It is connect with the clean gas general pipeline and the blowback air general pipeline, the clean gas general pipeline output host grain bed mistake
Obtained clean gas after filtering dust remover filters ash-laden gas, the bottom of the host grain bed filter collector be provided with it is described
The straight-through main ash bucket of host grain bed filter collector, it is characterised in that：The blowback air general pipeline is to the host grain bed
Blowback air being conveyed in filter collector, deashing being fluidized with blowback, which further includes at least one particle
Bed filter collector is provided with secondary granular-layer dust precipitator and institute described in connection on secondary granular-layer dust precipitator
The ash-laden gas on the top for the main ash bucket stated introduces pipe, and the ash-laden gas is introduced into pipe into the secondary granular-layer dust precipitator
Conveying is contained in the dust and gas containing fine powder for the fine dust not settled in the host grain bed filter collector, the secondary grain bed mistake
Filtering dust remover is connect with the clean gas general pipeline and the blowback air general pipeline respectively, described in the clean gas general pipeline output
Secondary granular-layer dust precipitator to obtained clean gas after the filtering of dust and gas containing fine powder, the blowback air general pipeline is to time
Blowback air is conveyed in granular-layer dust precipitator, and deashing, the bottom setting of the secondary granular-layer dust precipitator are fluidized with blowback
There is the secondary ash bucket led directly to the secondary granular-layer dust precipitator.
2. a kind of Bed Filtration dust pelletizing system according to claim 1, it is characterised in that：The top of the secondary ash bucket
It is connected with the dust-laden blowback air fairlead for exporting dust-laden blowback air, the outlet side connection of the dust-laden blowback air fairlead
Have the cleaning equipment or the dust-laden blowback air fairlead for purifying dust-laden blowback air outlet side concatenation draw valve after with
The ash-laden gas general pipeline connection.
3. a kind of Bed Filtration dust pelletizing system according to claim 2, it is characterised in that：The cleaning equipment includes
The outlet side of scrubbing tower and air-introduced machine, the dust-laden blowback air fairlead is connect with the air inlet of the scrubbing tower, described
Scrubbing tower gas outlet concatenation draw valve after connect with the input end of the air-introduced machine, the outlet end of the air-introduced machine is defeated
Purified clean blowback air out；
Or the cleaning equipment includes gas cooler, bag filter and air-introduced machine, the dust-laden blowback air fairlead
Outlet side connect with the input terminal of the gas cooler, the output end of the gas cooler is removed with the cloth bag
The input terminal of dirt device connects, and connects after the output end concatenation extraction valve of the bag filter with the input end of the air-introduced machine
It connects, the outlet end of the air-introduced machine exports purified clean blowback air.
4. a kind of Bed Filtration dust pelletizing system according to any one of claim 1 to 3, it is characterised in that：Described
The upstream of blowback air general pipeline is connected with back blowing machine, and the input end of the back blowing machine is passed through clean gas, the back-blowing
The heater or described for heating clean gas is provided between the outlet end of machine and the inlet end of the blowback air general pipeline
It is provided between the outlet end of back blowing machine and the inlet end of the blowback air general pipeline for mixing clean gas and high-temperature flue gas
Mixer, the described mixer connection is provided with the burner of high-temperature flue gas.
5. a kind of Bed Filtration dust pelletizing system according to any one of claim 1 to 3, it is characterised in that：Described
The upstream of blowback air general pipeline is connected with back blowing machine, and the input end of the back blowing machine is passed through high-temperature flue gas.
6. a kind of Bed Filtration dust pelletizing system according to claim 1, it is characterised in that：The host grain bed filtering
It is provided at least one host grain bed in deduster, is provided on the host grain bed clean for what is obtained after being filtered
The outer end of the main channel that gas is drawn, the main channel is stretched out outside the host grain bed filter collector, and is led to respectively
The net air valve of master for crossing concatenation is communicated with the net gas branched pipe of trunk and is communicated with main blowback air branch by the main blowback air valve of concatenation
It manages, the net gas branch pipe of trunk is communicated with by the net gas branch pipe valve of trunk concatenated on the clean gas general pipeline, the trunk is net
Gas branch pipe is connected to the net gas branched pipe of the trunk, is connected on the blowback air general pipeline by the main blowback air manifold valve of concatenation
It is connected with main blowback gas branch pipe, the main blowback gas branch pipe is connected to the main blowback air branched pipe；In the main ash bucket
It is provided with the main shock depositing dust plate for strengthening dust settling.
7. a kind of Bed Filtration dust pelletizing system according to claim 6, it is characterised in that：The secondary Bed Filtration
It is provided at least one grain bed in deduster, is provided on the secondary grain bed clean for what is obtained after being filtered
The outer end of the secondary snorkel that gas is drawn, the secondary snorkel is stretched out outside the secondary granular-layer dust precipitator, and is led to respectively
Time net air valve for crossing concatenation is communicated with time clean gas branched pipe and is communicated with time blowback air branch by the secondary blowback air valve of concatenation
It manages, time clean gas branch pipe valve on the clean gas general pipeline by concatenation is communicated with time clean gas branch pipe, and described is secondary clean
Gas branch pipe is connected to time clean gas branched pipe, is connected on the blowback air general pipeline by the secondary blowback air manifold valve of concatenation
It is connected with time blowback gas branch pipe, the secondary blowback gas branch pipe is connected to the secondary blowback air branched pipe；In the secondary ash bucket
It is provided with the secondary shock depositing dust plate for strengthening dust settling.
8. a kind of Bed Filtration dust pelletizing system according to claim 6, it is characterised in that：On the clean gas general pipeline
It is communicated with time clean gas branch pipe by time clean gas branch pipe valve of concatenation, passes through the secondary blowback of concatenation on the blowback air general pipeline
Gas branch pipe valve is communicated with time blowback gas branch pipe, at least one grain bed is provided in the secondary granular-layer dust precipitator,
The secondary snorkel that the clean gas for obtaining after being filtered is drawn, the secondary snorkel are provided on the secondary grain bed
Outer end stretch out outside secondary granular-layer dust precipitator, and by the Ventilating duct valve of concatenation respectively with the secondary clean gas
Branch pipe is connected to the secondary blowback gas branch pipe.
9. a kind of Bed Filtration dust pelletizing system according to claim 7 or 8, it is characterised in that：The net gas of the trunk
Upstream end on branch pipe positioned at the net gas branch pipe valve of trunk is connected with the main exhaust pipeline for having concatenated main exhaust valve, described
Ash-laden gas general pipeline by be serially connected with main ash-laden gas intake valve main ash-laden gas air intake branch and the host grain bed dust removal by filtration
The top of device is connected to, and is located at the downstream of the main ash-laden gas intake valve on the main ash-laden gas air intake branch and is connected with
Concatenate the main air inlet pipe road of master air suction valve.
10. a kind of Bed Filtration dust pelletizing system according to claim 9, it is characterised in that：Time clean gas branch
The upstream end for being located at time clean gas branch pipe valve on pipe is connected with the secondary exhaust pipe for having concatenated time exhaust valve, and described contains
Dust and gas, which introduces on pipe, is serially connected with time ash-laden gas intake valve, and the ash-laden gas, which introduces, is located at the secondary ash-laden gas intake valve on pipe
Downstream at be connected with the secondary admission line for having concatenated time intake valve.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106975305A (en) * | 2017-04-18 | 2017-07-25 | 宁波大学 | A kind of Bed Filtration dust pelletizing system |
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| CN106975305A (en) * | 2017-04-18 | 2017-07-25 | 宁波大学 | A kind of Bed Filtration dust pelletizing system |
| CN106975305B (en) * | 2017-04-18 | 2022-07-15 | 宁波大学 | Granular bed filtering and dust removing system |
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