CN106975305B - Granular bed filtering and dust removing system - Google Patents
Granular bed filtering and dust removing system Download PDFInfo
- Publication number
- CN106975305B CN106975305B CN201710251310.4A CN201710251310A CN106975305B CN 106975305 B CN106975305 B CN 106975305B CN 201710251310 A CN201710251310 A CN 201710251310A CN 106975305 B CN106975305 B CN 106975305B
- Authority
- CN
- China
- Prior art keywords
- main
- gas
- dust
- pipe
- bed filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a particle bed filtering and dust removing system, which comprises at least one main particle bed filtering and dust removing device, a secondary particle bed filtering and dust removing device and a dust-containing gas main pipe, the dust-containing gas main pipe conveys dust-containing gas to the main particle bed filter dust remover, the dust-containing gas main pipe outputs the clean gas filtered by the main particle bed filter dust remover, the bottom of the main particle bed filter dust remover is provided with a main ash hopper, the back-blowing gas main pipe conveys back-blowing gas to the main particle bed filter dust remover, the secondary particle bed filter dust remover is provided with a dust-containing gas inlet pipe communicated with the upper part of the main ash hopper, the dust-containing gas inlet pipe conveys fine dust-containing gas to the secondary particle bed filter dust remover, the clean gas main pipe outputs the clean gas filtered by the secondary particle bed filter dust remover, the back-blowing gas main pipe conveys back-blowing gas to the secondary particle bed filter dust remover, and the bottom of the secondary particle bed filter dust remover is provided with a secondary ash hopper; the advantage is that fine dust which is difficult to settle can be removed efficiently and reliably.
Description
Technical Field
The invention relates to a filtering and dust removing system, in particular to a particle bed filtering and dust removing system.
Background
The particle bed filtering and dust removing system has unique advantages in the field of high-temperature gas dust removal.
The invention patent as "a particle bed filter dust collector" (application date is 31/01/2007, publication number is CN101036846A, patent number is ZL 200710067109.7), which comprises an outer shell and at least one layer of filter device arranged in the outer shell along the height direction, the upper part of the outer shell is provided with a dust-containing gas inlet, the lower end of the outer shell is provided with a dust outlet, the filter device is provided with an independent gas reversing device, and the gas reversing device is connected with a gas purifying header pipe and a back blowing header pipe. When the particle bed filter dust remover is used for filtering and removing dust, the inner shell is surrounded by hot air flow, all parts of the inner shell expand with heat and contract with cold uniformly, and the particle bed filter dust remover has good heat deformation resistance, can be used in high-temperature and temperature-variable occasions, and has strong temperature adaptability and wide application range; when the filtering device comprises a plurality of filtering units which are arranged in parallel, the continuous filtering of the gas can be realized, and the effect is better.
However, the above particulate bed filter dust collector has the following problems in implementation: because the blowback airflow when the grained layer blowback deashing in an inner shell is 1.5 ~ 2.5 times of the average filtration airflow of the grained layer in this inner shell, consequently can cause the blowback of the grained layer in the inner shell on minimum second floor to accept by the grained layer in the inner shell on minimum first floor, thereby can cause the blowback to carry the dust upwards against the current, and the blowback of the grained layer in the inner shell on minimum first floor among this granule bed filter collector is more can only upwards against the current, cause fine dust to spin at minimum first floor to minimum third interlaminar, influence fine dust and subside the discharge. In order to make the back-blowing air flow downwards, although a circulating fan can be used to pump air at the lower part of the granular bed filter dust remover to force the back-blowing air and dust to be pumped out from the lower part and circulated back to the dust-containing air inlet of the granular bed filter dust remover, when the temperature is high and the hardness of the dust is high, the abrasion of blades in the circulating fan is serious, and especially when the air contains a large amount of tar, the tar and dust deposition prevention in the circulating fan is a difficult problem.
Disclosure of Invention
The invention aims to provide a particle bed filtering and dust removing system which can efficiently and reliably remove fine dust which is difficult to settle.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a granule bed filters dust pelletizing system, includes at least one main granule bed filters dust remover, dust-laden gas house steward, clean gas house steward and blowback gas house steward, main granule bed filter dust remover the top with dust-laden gas house steward connect, dust-laden gas house steward to main granule bed filter dust remover in carry dust-laden gas, main granule bed filter dust remover respectively with clean gas house steward with blowback gas house steward connect, clean gas house steward export the clean gas that main granule bed filter dust remover obtained after to dust-laden gas filtration, the bottom of main granule bed filter dust remover be provided with the straight main ash bucket of main granule bed filter dust remover, its characterized in that: the back-blowing gas main pipe conveys back-blowing gas into the main particle bed filter dust remover to back-blow fluidization for ash removal, the particle bed filter dust removal system also comprises at least one secondary particle bed filter dust remover, the secondary particle bed filter dust remover is provided with a dust-containing gas inlet pipe which is communicated with the secondary particle bed filter dust remover and the upper part of the main dust hopper, the dust-containing gas inlet pipe conveys fine dust-containing gas containing fine dust which is not settled in the main particle bed filter dust remover into the secondary particle bed filter dust remover, the secondary particle bed filter dust remover is respectively connected with the clean gas main pipe and the back-blowing gas main pipe, the clean gas main pipe outputs clean gas obtained by filtering the fine dust-containing gas by the secondary particle bed filter dust remover, and the back-blowing gas main pipe conveys back-blowing gas into the secondary particle bed filter dust remover to back-blow fluidization for ash removal, and a secondary ash bucket communicated with the secondary particle bed filter dust remover is arranged at the bottom of the secondary particle bed filter dust remover.
The upper part of the secondary dust hopper is connected with a dust-containing back-blowing gas outlet pipe used for outputting dust-containing back-blowing gas, the gas outlet end of the dust-containing back-blowing gas outlet pipe is connected with a purifying device used for purifying the dust-containing back-blowing gas, or the gas outlet end of the dust-containing back-blowing gas outlet pipe is connected with a gas outlet valve in series and then is connected with the dust-containing gas main pipe. The dust-containing blowback gas led out from the secondary dust hopper through the dust-containing blowback gas leading-out pipe can be efficiently purified by the purifying equipment, and the purified blowback gas can be sent to the downstream equipment of the clean gas main pipe, so that the clean blowback gas loss does not exist; the dust-containing blowback gas led out from the secondary dust hopper through the dust-containing blowback gas leading-out pipe can also be directly led into the dust-containing gas main pipe and then filtered; under the condition that no dust-containing back-blowing gas outlet pipe is arranged, when each secondary particle bed in the secondary particle bed filter dust remover is subjected to back-blowing fluidization dust removal in turn, dust-containing back-blowing gas is returned to the main dust hopper through the dust-containing gas inlet pipe and then enters the main particle bed for filtration.
The purification equipment comprises a washing tower and an induced draft fan, wherein the air outlet end of the dust-containing back-blowing air outlet pipe is connected with the air inlet of the washing tower, the air outlet of the washing tower is connected with an outlet valve in series and then is connected with the inlet end of the induced draft fan, and the outlet end of the induced draft fan outputs purified clean back-blowing air; when each secondary particle bed in the secondary particle bed filter dust remover is subjected to back-blowing fluidization dust removal in turn, dust-containing back-blowing gas led out through the dust-containing back-blowing gas outlet pipe is washed by the washing tower, and clean back-blowing gas output by the washing tower is sent to downstream equipment of a clean gas main pipe through the induced draft fan; the extraction valve can also be connected in series between the air outlet end of the dust-containing back-blowing gas extraction pipe and the air inlet of the washing tower during actual treatment, and only because the temperature of the dust-containing back-blowing gas extracted by the dust-containing back-blowing gas extraction pipe is relatively high, the temperature requirement on the extraction valve is also high, the price of the valve suitable for high temperature is relatively high, so that the extraction valve can be arranged between the air outlet of the washing tower and the inlet end of the induced draft fan, and the price of the extraction valve is reduced.
Or the purifying equipment comprises a gas cooler, a bag-type dust remover and an induced draft fan, wherein the gas outlet end of the dust-containing back-blowing gas outlet pipe is connected with the input end of the gas cooler, the output end of the gas cooler is connected with the input end of the bag-type dust remover, the output end of the bag-type dust remover is connected with the inlet end of the induced draft fan after being connected with an outlet valve in series, and the outlet end of the induced draft fan outputs purified clean back-blowing gas; when each secondary particle bed in the secondary particle bed filter dust remover is subjected to alternate back-blowing fluidization dust removal, the dust-containing back-blowing gas led out by the dust-containing back-blowing gas outlet pipe is purified by the gas cooler and the bag-type dust remover in turn to obtain clean back-blowing gas, and the clean back-blowing gas is sent to downstream equipment of a clean gas main pipe by the induced draft fan; the extraction valve can also be connected in series between the air outlet end of the dust-containing back-blowing gas extraction pipe and the input end of the gas cooler during actual treatment, and only because the temperature of the dust-containing back-blowing gas extracted by the dust-containing back-blowing gas extraction pipe is relatively high, the temperature requirement on the extraction valve is also high, the price of the valve suitable for high temperature is relatively high, so that the extraction valve can be arranged between the output end of the bag-type dust collector and the inlet end of the induced draft fan, and the price of the extraction valve is reduced.
The upper reaches of blowback air house steward be connected with blowback fan, blowback fan's entrance point let in clean gas, blowback fan's exit end with blowback air house steward the inlet end between be provided with the heater that is used for heating clean gas, perhaps blowback fan's exit end with blowback air house steward the inlet end between be provided with the blender that is used for mixing clean gas and high temperature flue gas, the blender be connected with the combustor that provides high temperature flue gas. The heater can be used for heating low-temperature clean air to enable the heated clean air to reach the temperature required by back flushing; the low-temperature clean gas can be increased to the temperature required by back flushing by mixing the high-temperature flue gas, and the combustor can adopt oxygen-enriched combustion to reduce the mixing amount of the high-temperature flue gas.
The upper stream of the back-blowing main pipe is connected with a back-blowing fan, and the inlet end of the back-blowing fan is filled with high-temperature flue gas. The inlet end of the back-blowing fan can be communicated with the high-temperature flue gas pipeline, and high-temperature flue gas is directly introduced, so that the high-temperature flue gas with the temperature meeting the back-blowing requirement is used as back-blowing air.
The main particle bed filter dust remover is internally provided with at least one main particle bed, the main particle bed is provided with a main vent pipe for leading out clean air obtained after filtering the main particle bed filter dust remover, the outer end of the main vent pipe extends out of the main particle bed filter dust remover, and is respectively communicated with a main gas purification branch pipe and a main back-blowing gas branch pipe through a main back-blowing gas valve which are connected in series, the main gas main pipe is communicated with the main gas purification branch pipe through the main back-blowing gas branch pipe which is connected in series, the main gas purification branch pipe is communicated with the main back-blowing gas branch pipe, the back-blowing gas main pipe is communicated with the main back-blowing gas branch pipe through the main back-blowing gas branch pipe which is connected in series, and the main back-blowing gas branch pipe is communicated with the main back-blowing gas branch pipe; and a main impact dust falling plate for strengthening dust settlement is arranged in the main dust hopper. In the method, by opening the main gas purification valve and the main gas purification branch pipe valve, clean gas obtained after being filtered by the main particle bed in the main particle bed filter dust remover can be output through the main gas pipe, the main gas purification branch pipe and the clean gas main pipe in sequence; by opening the main back-blowing gas branch pipe valve and the main back-blowing gas valve, the back-blowing gas can be input through the back-blowing gas main pipe, the main back-blowing gas branch pipe and the main vent pipe in sequence.
The secondary particle bed filter dust remover is internally provided with at least one secondary particle bed, the secondary particle bed is provided with a secondary vent pipe for leading out clean gas obtained after filtering the secondary particle bed filter dust remover, the outer end of the secondary vent pipe extends out of the secondary particle bed filter dust remover, and is communicated with a secondary clean gas branch pipe and a secondary back-blowing gas branch pipe through secondary back-blowing gas valves which are connected in series respectively, the clean gas main pipe is communicated with the secondary clean gas branch pipe through the secondary clean gas branch pipe valve which is connected in series, the secondary clean gas branch pipe is communicated with the secondary clean gas branch pipe, the back-blowing gas main pipe is communicated with the secondary back-blowing gas branch pipe through the secondary back-blowing gas branch pipe valve which is connected in series, and the secondary back-blowing gas branch pipe is communicated with the secondary back-blowing gas branch pipe; and a secondary impact dust falling plate for strengthening dust settlement is arranged in the secondary ash hopper. The opening of the secondary air purifying valve and the secondary clean air branch pipe valve can output the clean air obtained after being filtered by the secondary particle bed in the secondary particle bed filter dust remover through the secondary air pipe, the secondary clean air branch pipe and the clean air main pipe in sequence; by opening the secondary back-blowing gas branch pipe valve and the secondary back-blowing gas valve, back-blowing gas can be input through the back-blowing gas main pipe, the secondary back-blowing gas branch pipe and the secondary vent pipe in sequence to carry out back-blowing fluidization dust removal on the secondary particle bed in the secondary particle bed filter dust remover.
Clean air manifold on have inferior clean air branch pipe through the inferior clean air branch pipe valve intercommunication that concatenates, back-blowing air manifold on have inferior back-blowing air branch pipe through the inferior back-blowing air branch pipe valve intercommunication that concatenates, inferior granule bed filter dust remover in be provided with at least one inferior granule bed, inferior granule bed on be provided with and be used for filtering the inferior breather pipe that the clean gas that obtains after draws, the outer end of inferior breather pipe stretch out inferior granule bed filter dust remover outside, and through the breather pipe valve that concatenates respectively with inferior clean air branch pipe with inferior back-blowing air branch pipe intercommunication. The secondary air cleaning valve and the secondary clean air branch pipe are omitted, the secondary back-blowing air valve and the secondary back-blowing air branch pipe are omitted, and pipelines are simplified; by opening the vent pipe valve and the secondary clean air branch pipe valve and closing the secondary blowback air branch pipe valve, clean air obtained after being filtered by the secondary particle bed in the secondary particle bed filter dust remover can be output through the secondary vent pipe, the secondary clean air branch pipe and the clean air main pipe in sequence; by opening the secondary back-blowing gas branch pipe valve and the vent pipe valve and closing the secondary clean gas branch pipe valve, back-blowing gas can be input through the back-blowing gas main pipe, the secondary back-blowing gas branch pipe and the secondary vent pipe in sequence, and back-blowing fluidization ash removal is carried out on the secondary particle bed in the secondary particle bed filter dust remover.
Main clean gas branch pipe on lie in main clean gas branch pipe valve's upper reaches department be connected with the main exhaust duct who has concatenated main discharge valve, dust-containing air main through concatenating main dust-containing air inlet valve's main dust-containing air inlet branch pipe with main granule bed filter dust remover's top intercommunication, main dust-containing air inlet branch pipe on lie in main dust-containing air inlet valve's low reaches department be connected with the main air inlet duct who has concatenated main inlet valve. When the main particle bed filter dust remover needs to be preheated or replaced, a heat medium or replacement gas enters the main particle bed filter dust remover through the main gas inlet pipeline and is discharged out of the main particle bed filter dust remover through the main gas exhaust pipeline and the main ash discharge port.
Inferior clean gas branch pipe on be located inferior clean gas branch pipe valve's upper reaches department be connected with the inferior exhaust duct who has concatenated inferior discharge valve, dusty gas inlet pipe on have concatenated inferior dusty gas admission valve, dusty gas inlet pipe on be located inferior dusty gas admission valve's low reaches department be connected with the inferior admission line who has concatenated inferior admission valve. When the secondary particle bed filter dust remover needs to be preheated or replaced, the heat medium or the replacement gas enters the secondary particle bed filter dust remover through the secondary gas inlet pipeline and is discharged out of the secondary particle bed filter dust remover through the secondary gas exhaust pipeline and the secondary ash discharge port.
Compared with the prior art, the invention has the advantages that:
1) each main particle bed in the main particle bed filter dust remover adopts on-line back-blowing fluidization dust removal, namely the main particle bed filter dust remover filters dust-containing gas and alternately back-blows fluidization dust removal to each main particle bed, so that the fluctuation of the air flow of a dust-containing gas main pipe is small in the back-blowing process, and the influence on the stable work of upstream equipment or downstream equipment of the particle bed filter dust removal system is small.
2) At least one secondary particle bed filter dust remover is additionally arranged, and dust-containing gas inlet pipes are utilized to timely bring fine dust which is not settled in the main particle bed filter dust remover into the secondary particle bed filter dust remover for filtering, so that dust settlement in the main particle bed filter dust remover can be promoted, fine dust is prevented from beating and being enriched between all main particle beds at the lower part of the main particle bed filter dust remover, fine dust which is difficult to settle in the main particle bed filter dust remover is efficiently and reliably removed, all main particle beds at the lower part of the main particle bed filter dust remover can be ensured to be uniformly filtered with all main particle beds at the upper part of the main particle bed filter dust remover, the upper-lower temperature difference of the main particle bed filter dust remover is reduced, and condensate (such as tar) is prevented from being separated out at the lower part of the main particle bed filter dust remover.
3) Clean gas obtained after being filtered by the secondary particle bed filter dust remover is sent to a clean gas main pipe, so that no clean gas loss exists; the sub-particle bed filter dust remover adopts on-line back-blowing fluidization dust removal or off-line back-blowing fluidization dust removal, the on-line back-blowing fluidization dust removal is that the sub-particle bed filter dust remover filters dust-containing gas and alternately back-blowing fluidization dust removal for each sub-particle bed is carried out simultaneously, the off-line back-blowing fluidization dust removal is that the sub-particle bed filter dust remover filters dust-containing gas firstly and alternately back-blowing fluidization dust removal for each sub-particle bed in the sub-particle bed filter dust remover is carried out later.
Drawings
FIG. 1 is a schematic view of a granular bed filter dust-removing system according to a first embodiment;
FIG. 2 is a schematic structural view of a granular bed filter dust-removing system according to the second embodiment;
FIG. 3 is a schematic view showing the structure of a granular bed filter dust collecting system according to the third embodiment;
FIG. 4 is a schematic view showing the structure of a granular bed filter dust collecting system according to a fourth embodiment;
FIG. 5 is a schematic illustration of a granular bed filter dust removal system of example five;
FIG. 6 is a schematic view of the granular bed filter dust collecting system of the sixth embodiment;
FIG. 7 is a schematic view of a granular bed filter dust removal system of the seventh embodiment;
Fig. 8 is a schematic structural view of a granular bed filter dust removal system of an example eight.
Detailed Description
The invention is described in further detail below with reference to the following examples of the drawings.
The first embodiment is as follows:
the particle bed filtering and dust removing system provided by this embodiment includes, as shown in fig. 1, three main particle bed filtering and dust removing devices 1, one sub-particle bed filtering and dust removing device 2, a dust-containing gas main pipe 3, a clean gas main pipe 4 and a blowback gas main pipe 5, where one main particle bed filtering and dust removing device 1 is provided with six layers, and each layer has twelve main particle beds 11, the top of the main particle bed filtering and dust removing device 1 is connected with the dust-containing gas main pipe 3, specifically, the dust-containing gas main pipe 3 is communicated with the top of the main particle bed filtering and dust removing device 1 through a main dust-containing gas inlet branch pipe 32 connected in series with a main dust-containing gas inlet valve 31, the dust-containing gas main pipe 3 conveys dust-containing gas into the main particle bed filtering and dust removing device 1, the main particle bed filtering and dust removing device 1 is respectively connected with the clean gas main pipe 4 and the blowback gas main pipe 5, the clean gas main pipe 4 outputs clean gas obtained by the main particle bed filtering and dust removing device 1 after filtering dust-containing gas, the bottom of the main particle bed filter dust collector 1 is provided with a main ash bucket 61 communicated with the main particle bed filter dust collector 1, the bottom of the main ash bucket 61 is provided with a main ash discharge port 62, a plurality of main impact dust fall plates 65 for strengthening dust settlement are arranged below the lowest layer main particle bed 11 in the main particle bed filter dust collector 1 in a staggered mode, the main impact dust fall plates 65 are positioned in the main ash bucket 61, a back-blowing header pipe 5 conveys back-blowing gas into the main particle bed filter dust collector 1 for back-blowing and fluidized ash removal in an online mode, four layers of secondary particle beds 21 are arranged in one secondary particle bed filter dust collector 2, the top of the secondary particle bed filter dust collector 2 is provided with a dust-containing gas inlet pipe 7 for communicating the top of the secondary particle bed filter dust collector 2 with the upper portion of the main ash bucket 61, and the gas inlet end of the dust-containing gas inlet pipe 7 extending into the upper portion of the main ash bucket 61 is specifically positioned right below the lowest layer main particle bed 11 in the main particle bed filter dust collector 1, a secondary dust-containing gas inlet valve 71 is connected in series on the dust-containing gas inlet pipe 7, the dust-containing gas inlet pipe 7 conveys fine dust-containing gas containing fine dust which is not settled in the primary particle bed filter dust collector 1 into the secondary particle bed filter dust collector 2, the secondary particle bed filter dust collector 2 is respectively connected with the clean gas main pipe 4 and the blowback gas main pipe 5, the clean gas main pipe 4 outputs clean gas obtained by filtering the fine dust-containing gas by the secondary particle bed filter dust collector 2, the blowback gas main pipe 5 conveys blowback gas into the secondary particle bed filter dust collector 2 for blowback fluidization dust cleaning, the bottom of the secondary particle bed filter dust collector 2 is provided with a secondary dust hopper 63 which is communicated with the secondary particle bed filter dust collector 2, the bottom of the secondary dust hopper 63 is provided with a secondary dust discharge port 64, a plurality of secondary impact plates 66 which are arranged in a staggered way and used for dust strengthening settlement are arranged below the secondary particle bed 21 at the lowest layer in the secondary particle bed filter dust collector 2, the secondary impact dust fall plate 66 is located in the secondary ash bucket 63. Each main particle bed 11 in the main particle bed filter dust remover 1 in the particle bed filter dust removal system adopts online back-blowing fluidization dust removal, namely the main particle bed filter dust remover 1 filters dust-containing gas and performs back-blowing fluidization dust removal on each main particle bed 11 in turn at the same time, thus causing small fluctuation of gas flow of the dust-containing gas main pipe 3 in the back-blowing process, and further having small influence on the stable operation of upstream equipment or downstream equipment of the particle bed filter dust removal system; the secondary particle bed filter dust remover 2 is additionally arranged, and fine dust which is not settled in the main particle bed filter dust remover 1 is brought into the secondary particle bed filter dust remover 2 in time by utilizing the dust-containing gas inlet pipe 7 for filtering, so that dust settlement in the main particle bed filter dust remover 1 can be promoted, the fine dust is prevented from rotating and gathering among all the main particle beds 11 at the lower part of the main particle bed filter dust remover 1, namely, the fine dust which is difficult to settle in the main particle bed filter dust remover 1 is efficiently and reliably removed, each main particle bed 11 at the lower part of the main particle bed filter dust remover 1 can be ensured to be uniformly filtered with each main particle bed 11 at the upper part of the main particle bed filter dust remover 1, the upper and lower temperature difference of the main particle bed filter dust remover 1 is reduced, and condensate (such as tar) precipitation at the lower part of the main particle bed filter dust remover 1 is prevented; clean gas obtained after being filtered by the secondary particle bed filter dust collector 2 is sent to a clean gas main pipe 4, and no clean gas loss exists; the sub-particle bed filter dust remover 2 adopts on-line back-blowing fluidization dust removal or off-line back-blowing fluidization dust removal, the on-line back-blowing fluidization dust removal is that the sub-particle bed filter dust remover 2 filters dust-containing gas and alternately back-blowing fluidization dust removal to each sub-particle bed 21 is carried out simultaneously, the off-line back-blowing fluidization dust removal is that the sub-particle bed filter dust remover 2 filters dust-containing gas firstly and alternately back-blowing fluidization dust removal to each sub-particle bed 21 in the sub-particle bed filter dust remover 2 is carried out later, and the dust removal effect is good.
In this embodiment, the upstream of the back blowing main pipe 5 is connected with a back blowing fan 91, clean air is introduced into the inlet end of the back blowing fan 91, during actual processing, the inlet end of the back blowing fan 91 is communicated with the outlet end of an external clean air induced fan (not shown in the figure), or is communicated with an external clean air cabinet (not shown in the figure), or is communicated with the clean air main pipe 4 to introduce the clean air, a heater 92 for heating the clean air is arranged between the outlet end of the back blowing fan 91 and the air inlet end of the back blowing main pipe 5, and the heater 92 is used for heating the low-temperature clean air to make the heated clean air reach the temperature required for back blowing.
In this embodiment, the upper portion of the sub-ash bucket 63 is connected with a dust-containing blowback gas outlet pipe 81 for outputting dust-containing blowback gas, the air inlet end of the dust-containing blowback gas outlet pipe 81 extending into the upper portion of the sub-ash bucket 63 is specifically located under the lowermost sub-particle bed 21 in the sub-particle bed filter dust collector 2, the air outlet end of the dust-containing blowback gas outlet pipe 81 is connected with a purifying device for purifying dust-containing blowback gas, the dust-containing blowback gas led out from the sub-ash bucket 63 through the dust-containing blowback gas outlet pipe 81 can be efficiently purified by the purifying device, the purified blowback gas can be sent to the downstream device of the clean air main pipe 4, and thus, no clean blowback gas loss exists. The purifying device comprises a washing tower 83 and an induced draft fan 84, the air outlet end of the dust-containing blowback air outlet pipe 81 is connected with the air inlet of the washing tower 83, the air outlet of the washing tower 83 is connected with the inlet end of the induced draft fan 84 after being connected with an outlet valve 82 in series, and the outlet end of the induced draft fan 84 outputs purified clean blowback air; when each secondary particle bed 21 in the secondary particle bed filter dust remover 2 is subjected to back-blowing fluidization ash removal in turn, dust-containing back-blowing gas led out through the dust-containing back-blowing gas leading-out pipe 81 is washed by the washing tower 83, and clean back-blowing gas output by the washing tower 83 is sent to downstream equipment of the clean gas main pipe 4 through the induced draft fan 84; during actual treatment, the leading-out valve 82 can also be connected in series between the air outlet end of the dust-containing blowback air leading-out pipe 81 and the air inlet of the washing tower 83, and only because the temperature of the dust-containing blowback air led out by the dust-containing blowback air leading-out pipe 81 is relatively high, the temperature requirement on the leading-out valve 82 is also high, and the price of the valve suitable for high temperature is relatively high, so that the leading-out valve 82 can be arranged between the air outlet of the washing tower 83 and the inlet end of the induced draft fan 84, and the price of the leading-out valve 82 is reduced.
In this embodiment, a main vent pipe 12 for guiding out the filtered clean air is disposed on the main particle bed 11, the outer end of the main vent pipe 12 extends out of the main particle bed filter dust collector 1, and is communicated with a main air-purifying branch pipe 41 and a main blowback branch pipe 54 through a main blowback air valve 53, respectively, the main air-purifying branch pipe 42 is communicated with a main air-purifying branch pipe 43, the main air-purifying branch pipe 43 is communicated with the main air-purifying branch pipe 41, the main blowback branch pipe 56 is communicated with the main blowback branch pipe 54, respectively. Here, by opening the main clean air valve 44 and the main clean air branch pipe valve 42, the clean air obtained by filtering through the main particle bed 11 in the main particle bed filter dust collector 1 can be output through the main vent pipe 12, the main clean air branch pipe 41, the main clean air branch pipe 43, and the clean air main pipe 4 in sequence; by opening the main blowback gas branch valve 55 and the main blowback gas valve 53, blowback gas can be fed in through the blowback gas header pipe 5, the main blowback gas branch pipe 56, the main blowback gas branch pipe 54, and the main vent pipe 12 in sequence.
In this embodiment, the sub-particle bed 21 is provided with a sub-vent pipe 22 for guiding out the filtered clean air, the outer end of the sub-vent pipe 22 extends out of the sub-particle bed filter dust collector 2, and is respectively communicated with a sub-clean air branch pipe 46 and a sub-blowback air branch pipe 58 through a sub-clean air valve 45 connected in series, the clean air main pipe 4 is communicated with a sub-clean air branch pipe 48 through a sub-clean air branch pipe valve 47 connected in series, the sub-clean air branch pipe 48 is communicated with the sub-clean air branch pipe 46, the blowback air main pipe 5 is communicated with a sub-blowback air branch pipe 51 through a sub-blowback air branch pipe valve 59 connected in series, and the sub-blowback air branch pipe 51 is communicated with the sub-blowback air branch pipe 58. Here, by opening the sub clean gas valve 45 and the sub clean gas branch pipe valve 47, the clean gas obtained after being filtered by the sub particle bed 21 in the sub particle bed filter dust collector 2 can be output through the sub vent pipe 22, the sub clean gas branch pipe 46, the sub clean gas branch pipe 48, and the clean gas main pipe 4 in sequence; by opening the sub-blowback gas branch valve 59 and the sub-blowback gas valve 57, the blowback gas can be input through the blowback gas main pipe 5, the sub-blowback gas branch pipe 51, the sub-blowback gas branch pipe 58 and the sub-vent pipe 22 in sequence, and the sub-particle bed 21 in the sub-particle bed filter dust collector 2 is subjected to blowback fluidization ash removal.
In this embodiment, the dirty air inlet pipe 7 is composed of a dirty air outlet branch pipe 72 and a dirty air collecting pipe 73, an air inlet end of the dirty air outlet branch pipe 72 extends into an upper portion of the main dust hopper 61 and is located right below the lowermost main particle bed 11 in the main particle bed filter dust collector 1, a branch pipe valve 74 is connected in series to the dirty air outlet branch pipe 72, an air outlet end of the dirty air outlet branch pipe 72 is communicated with the dirty air collecting pipe 73, a sub-dirty air inlet valve 71 is connected in series to the dirty air collecting pipe 73, and an air outlet end of the dirty air collecting pipe 73 is communicated with a top portion of the sub-particle bed filter dust collector 2.
The working process of the particle bed filtering and dust removing system of the embodiment is as follows: thirty-six main particle beds 11 in three main particle bed filter dust collectors 1 are used for filtering dust-containing gas from a dust-containing gas main pipe 3 in parallel, and the filtered clean gas is collected in a clean gas main pipe 4 through a main vent pipe 12, a main clean gas branch pipe 41 and a main clean gas branch pipe 43 and is output; the blowback gas introduced by the blowback gas main pipe 5 passes through the main blowback gas branch pipe 56, the main blowback gas branch pipe 54 and the main vent pipe 12 and then carries out blowback fluidization ash removal on the main particle bed 11, the blowback gas is mixed with the dust-containing gas, coarser particles in the dust-containing gas and particles which are carried out agglomeration thickening by the blowback gas from the main particle bed 11 settle into the main ash bucket 61 to be discharged, fine dust which is not settled in the dust-containing gas and the blowback gas is carried into the secondary particle bed filter dust collector 2 through the dust falling of the main impact dust falling plate 65 to be filtered, the fine dust is effectively prevented from being rotated and enriched between the main particle bed 11 at the lower part of the main particle bed filter dust collector 1, and the clean gas obtained after being filtered by the secondary particle bed filter dust collector 2 is collected in the dry gas main pipe 4 through the secondary vent pipe 22, the secondary clean gas branch pipe 46 and the secondary clean gas branch pipe 48 to be output; the blowback gas introduced by the blowback gas header pipe 5 is input through the sub blowback gas branch pipe 51, the sub blowback gas branch pipe 58 and the sub vent pipe 22 to perform blowback fluidization ash removal on the sub-granule bed 21, the dust-containing blowback gas of the sub-granule bed filter dust collector 2 is taken out from the dust-containing blowback gas outlet pipe 81, and the clean blowback gas washed by the washing tower 83 is sent to the downstream equipment of the clean gas header pipe 4 through the induced draft fan 84.
The particle bed filtering and dedusting system of the embodiment is suitable for filtering dust-containing gas with condensate (such as tar) separated out during temperature reduction, such as low-temperature pyrolysis gas of coal, biomass and the like.
Example two:
the particle bed filtering and dust removing system provided in this embodiment, as shown in fig. 2, has substantially the same structure as the particle bed filtering and dust removing system of the first embodiment, except that: the upstream of blowback gas house steward 5 is connected with blowback fan 91, the entrance point of blowback fan 91 lets in clean gas, during actual processing the entrance point of blowback fan 91 and the exit end intercommunication of outside clean gas blower (not drawn) or with outside clean gas cabinet intercommunication in order to let in clean gas, be provided with the blender 93 that is used for mixing clean gas and high temperature flue gas between the exit end of blowback fan 91 and the inlet end of blowback gas house steward 5, blender 93 is connected with the combustor 94 that provides the high temperature flue gas, improve the required temperature of blowback with microthermal clean gas through sneaking into the high temperature flue gas, for reducing the volume of sneaking into of high temperature flue gas, combustor 94 can adopt the oxygen boosting burning. The purifying equipment comprises a gas cooler 85, a bag-type dust remover 86 and an induced draft fan 84, wherein the gas outlet end of a dust-containing back-blowing gas outlet pipe 81 is connected with the input end of the gas cooler 85, the output end of the gas cooler 85 is connected with the input end of the bag-type dust remover 86, the output end of the bag-type dust remover 86 is connected with an outlet valve 82 in series and then is connected with the inlet end of the induced draft fan 84, and the outlet end of the induced draft fan 84 outputs purified clean back-blowing gas; when each secondary particle bed 21 in the secondary particle bed filter dust collector 2 is subjected to alternate blowback fluidization ash removal, the dust-containing blowback gas led out through the dust-containing blowback gas leading-out pipe 81 is purified through the gas cooler 85 and the bag-type dust collector 86 in sequence to obtain clean blowback gas, and the clean blowback gas is sent to downstream equipment of the clean gas main pipe 4 through the induced draft fan 84; in practical treatment, the extraction valve 82 can also be connected in series between the air outlet end of the dust-containing blowback gas extraction pipe 81 and the input end of the gas cooler 85, but the temperature of the dust-containing blowback gas extracted by the dust-containing blowback gas extraction pipe 81 is relatively high, so that the temperature requirement on the extraction valve 82 is also high, and the price of the valve suitable for high temperature is relatively high, so that the extraction valve 82 can be arranged between the output end of the bag-type dust collector 86 and the inlet end of the induced draft fan 84, and the price of the extraction valve 82 is reduced.
Because the adopted purifying devices are different, the particle bed filtering and dedusting system of the embodiment is suitable for filtering the dust-containing gas without condensate (such as tar) during temperature reduction.
Example three:
a particle bed filtering and dust removing system proposed in this embodiment is substantially the same as the structure of the particle bed filtering and dust removing system in the first embodiment or the structure of the particle bed filtering and dust removing system in the second embodiment, as shown in fig. 3, and the differences are only that: the upstream of the back-blowing main pipe 5 is connected with a back-blowing fan 91, the inlet end of the back-blowing fan 91 is fed with high-temperature flue gas, during actual treatment, the inlet end of the back-blowing fan 91 is communicated with a high-temperature flue gas pipeline (not shown in the figure), and the high-temperature flue gas is directly fed in, so that the high-temperature flue gas with the temperature meeting the back-blowing requirement is used as the back-blowing gas. The air outlet end of the dust-containing blowback air outlet pipe 81 is connected with the outlet valve 82 in series and then is connected with the dust-containing air main pipe 3, the secondary clean air branch valve 47 and the secondary dust-containing air inlet valve 71 are closed during blowback, dust-containing blowback air led out from the secondary dust hopper 63 through the dust-containing blowback air outlet pipe 81 is directly led into the dust-containing air main pipe 3 after dust fall through a plurality of secondary impact dust fall plates 66 in the secondary dust hopper 63, and then filtration is carried out.
Because the air outlet end of the dust-containing blowback air outlet pipe 81 is connected in series with the outlet valve 82 and then is directly connected with the dust-containing air main pipe 3, the particle bed filtering and dust removing system of the embodiment is suitable for dust which is easy to agglomerate into coarse particles and is easy to settle during filtering.
Example four:
the particle bed filtering and dust removing system proposed in this embodiment, as shown in fig. 4, has substantially the same structure as the particle bed filtering and dust removing system of the third embodiment, except that: the dust-containing blowback gas outlet pipe 81 and the outlet valve 82 connected in series with the outlet end are omitted, when each secondary particle bed 21 in the secondary particle bed filter dust collector 2 is subjected to offline (the secondary clean gas branch pipe valve 47 is closed) alternate blowback fluidization dust removal, the dust-containing blowback gas is returned to the main dust hopper 61 through the dust-containing gas inlet pipe 7, and enters the main particle bed 11 for filtration after the dust settling is strengthened through the main impact dust-settling plate 65 in the main dust hopper 61.
The particle bed filter dust removal system of the embodiment is suitable for dust which is easy to agglomerate into coarse particles and settle during filtering.
Example five:
as shown in fig. 5, the particle bed filtering and dust removing system proposed in this embodiment has substantially the same structure as the particle bed filtering and dust removing system of the second embodiment, except that: the purifying equipment comprises a washing tower 83 and an induced draft fan 84, the air outlet end of the dust-containing back-blowing air outlet pipe 81 is connected with the air inlet of the washing tower 83, the air outlet of the washing tower 83 is connected with the inlet end of the induced draft fan 84 after being connected with an outlet valve 82 in series, and the outlet end of the induced draft fan 84 outputs purified clean back-blowing air; when each secondary particle bed 21 in the secondary particle bed filter dust collector 2 is subjected to alternate blowback fluidization ash removal, dust-containing blowback gas led out through the dust-containing blowback gas leading-out pipe 81 is washed by the washing tower 83, and clean blowback gas output by the washing tower 83 is sent to downstream equipment of the clean gas main pipe 4 through the induced draft fan 84.
Example six:
the particle bed filter dust removing system proposed in this embodiment, as shown in fig. 6, has substantially the same structure as the particle bed filter dust removing system of the first embodiment, except that: the upstream of the back-blowing main pipe 5 is connected with a back-blowing fan 91, the inlet end of the back-blowing fan 91 is filled with high-temperature flue gas, the inlet end of the back-blowing fan 91 is communicated with a high-temperature flue gas pipeline (not shown in the figure) during actual treatment, the high-temperature flue gas is directly filled, and the high-temperature flue gas with the temperature meeting the back-blowing requirement is used as the back-blowing gas.
The purification devices in the first, second, fifth and sixth embodiments can be replaced by other existing mature purification devices; the technology for obtaining the back blowing air with the required temperature in each embodiment can be replaced by other existing mature technologies; the technique of obtaining the back-blowing gas with the required temperature and the purification equipment or directly leading the dust-containing back-blowing gas into the dust-containing gas main pipe 3 again can be combined in any pairs.
Example seven:
in the above embodiments, the sub-clean air valve 45 and the sub-clean air branch pipe 46, and the sub-blowback air valve 57 and the sub-blowback air branch pipe 58 are omitted to simplify the piping, as shown in fig. 7, the sub-clean air branch pipe 48 is connected to the clean air main pipe 4 through the sub-clean air branch pipe valve 47 connected in series, the sub-blowback air branch pipe 51 is connected to the blowback air main pipe 5 through the sub-blowback air branch pipe valve 59 connected in series, the sub-particle bed 21 is provided with the sub-breather pipe 22 for leading out the filtered clean air, the outer end of the sub-breather pipe 22 extends out of the sub-particle bed filter dust collector 2, and is connected to the sub-clean air branch pipe 48 and the sub-blowback air branch pipe 51 through the breather pipe valve 23 connected in series. Here, by opening the vent pipe valve 23 and the sub-clean air branch pipe valve 47 and closing the sub-blowback air branch pipe valve 59, the clean air obtained after being filtered by the sub-particle bed 21 in the sub-particle bed filter dust collector 2 can be output through the sub-vent pipe 22, the sub-clean air branch pipe 48 and the clean air main pipe 4 in sequence; by opening the sub blowback gas branch pipe valve 59 and the vent pipe valve 23 and closing the sub clean gas branch pipe valve 47, blowback gas can be input through the blowback gas main pipe 5, the sub blowback gas branch pipe 51 and the sub vent pipe 22 in sequence, and the sub particle bed 21 in the sub particle bed filter dust collector 2 is blowback fluidized for ash removal.
Example eight:
in the above embodiments, considering that the primary particle bed filter dust collector 1 needs to be preheated or replaced and the secondary particle bed filter dust collector 2 needs to be preheated or replaced, additional components are added, as shown in fig. 8, specifically: a main exhaust pipeline 94 connected with a main exhaust valve 93 in series is connected to the main purified gas branch pipe 43 at the upstream of the main purified gas branch pipe valve 42, a heat medium or a displacement gas is discharged out of the main particle bed filter dust remover 1 through the main exhaust pipeline 94 and the main ash discharge port 62, a main inlet pipeline 96 connected with a main inlet valve 95 in series is connected to the main dust-containing gas inlet branch pipe 32 at the downstream of the main dust-containing gas inlet valve 31, and the heat medium or the displacement gas enters the main particle bed filter dust remover 1 through the main inlet pipeline 96; the sub-exhaust pipeline 98 connected with the sub-exhaust valve 97 in series is connected to the sub-clean air branch pipe 48 at the upstream of the sub-clean air branch pipe valve 47, the heat medium or the replacement air is discharged out of the sub-particle bed filter dust collector 2 through the sub-exhaust pipeline 98 and the sub-ash discharge port 64, the sub-intake pipeline 90 connected with the sub-intake valve 99 in series is connected to the dust-laden air intake pipe 7 at the downstream of the sub-dust-laden air intake valve 71, and the heat medium or the replacement air enters the sub-particle bed filter dust collector 2 through the sub-intake pipeline 90.
Claims (7)
1. The utility model provides a granule bed filters dust pelletizing system, includes at least one main granule bed filters dust remover, dust-laden gas house steward, clean air house steward and blowback gas house steward, main granule bed filter dust remover the top with dust-laden gas house steward connect, dust-laden gas house steward to main granule bed filter dust remover in carry the dust-laden gas, main granule bed filter dust remover respectively with clean air house steward with blowback gas house steward connect, clean air house steward export the clean gas that main granule bed filter dust remover obtained after to the dust-laden gas filtration, main granule bed filter dust remover the bottom be provided with main granule bed filter dust remover straight main ash bucket, its characterized in that: the back-blowing gas main pipe conveys back-blowing gas into the main particle bed filter dust remover to back-blow fluidization for ash removal, the particle bed filter dust removal system also comprises at least one secondary particle bed filter dust remover, the secondary particle bed filter dust remover is provided with a dust-containing gas inlet pipe which is communicated with the secondary particle bed filter dust remover and the upper part of the main dust hopper, the dust-containing gas inlet pipe conveys fine dust-containing gas containing fine dust which is not settled in the main particle bed filter dust remover into the secondary particle bed filter dust remover, the secondary particle bed filter dust remover is respectively connected with the clean gas main pipe and the back-blowing gas main pipe, the clean gas main pipe outputs clean gas obtained by filtering the fine dust-containing gas by the secondary particle bed filter dust remover, and the back-blowing gas main pipe conveys back-blowing gas into the secondary particle bed filter dust remover to back-blow fluidization for ash removal, the bottom of the secondary particle bed filter dust remover is provided with a secondary ash bucket which is communicated with the secondary particle bed filter dust remover;
The upper part of the secondary ash bucket is connected with a dust-containing back-blowing gas outlet pipe for outputting dust-containing back-blowing gas, the gas outlet end of the dust-containing back-blowing gas outlet pipe is connected with a purifying device for purifying the dust-containing back-blowing gas, or the gas outlet end of the dust-containing back-blowing gas outlet pipe is connected with a gas outlet valve in series and then is connected with the dust-containing gas main pipe;
the main particle bed filter dust remover is internally provided with at least one main particle bed, the main particle bed is provided with a main vent pipe for leading out clean gas obtained after the main particle bed filter dust remover is filtered, the outer end of the main vent pipe extends out of the main particle bed filter dust remover, and is communicated with a main gas purification branch pipe and a main back-blowing gas branch pipe through main back-blowing gas valves which are connected in series respectively, the main gas main pipe is communicated with the main gas purification branch pipe through the main gas purification branch pipe which is connected in series, the main gas purification branch pipe is communicated with the main back-blowing gas branch pipe, the back-blowing gas main pipe is communicated with the main back-blowing gas branch pipe through the main back-blowing gas branch pipe which is connected in series, and the main back-blowing gas branch pipe is communicated with the main back-blowing gas branch pipe; a main impact dust falling plate for strengthening dust settlement is arranged in the main dust hopper;
The secondary particle bed filter dust remover is internally provided with at least one secondary particle bed, the secondary particle bed is provided with a secondary vent pipe for leading out clean air obtained after filtering the secondary particle bed filter dust remover, the outer end of the secondary vent pipe extends out of the secondary particle bed filter dust remover, and is respectively communicated with a secondary clean air branch pipe and a secondary back-blowing air branch pipe through secondary clean air valves connected in series, the clean air main pipe is communicated with the secondary clean air branch pipe through the secondary clean air branch pipe valves connected in series, the secondary clean air branch pipe is communicated with the secondary clean air branch pipe, the back-blowing air main pipe is communicated with the secondary back-blowing air branch pipe through the secondary back-blowing air branch pipe valves connected in series, and the secondary back-blowing air branch pipe is communicated with the secondary back-blowing air branch pipe; and a secondary impact dust falling plate for strengthening dust settlement is arranged in the secondary ash hopper.
2. The granular bed filter dust removal system of claim 1, wherein: the purification equipment comprises a washing tower and an induced draft fan, wherein the air outlet end of the dust-containing back-blowing air outlet pipe is connected with the air inlet of the washing tower, the air outlet of the washing tower is connected with an outlet valve in series and then is connected with the inlet end of the induced draft fan, and the outlet end of the induced draft fan outputs purified clean back-blowing air;
Or clarification plant include gas cooler, sack cleaner and draught fan, the dust-laden blowback eduction tube give vent to anger the end with gas cooler's input connect, gas cooler's output with the input of sack cleaner connect, the output of sack cleaner concatenate after the extraction valve with the entrance point connection of draught fan, the exit end output of draught fan purify the clean blowback gas after.
3. A granular bed filter dust removal system as claimed in claim 1 or 2, wherein: the upper reaches of blowback air house steward be connected with blowback fan, blowback fan's entrance point let in clean gas, blowback fan's exit end with blowback air house steward's inlet end between be provided with the heater that is used for heating clean gas, perhaps blowback fan's exit end with blowback air house steward's inlet end between be provided with the blender that is used for mixing clean gas and high temperature flue gas, the blender be connected with the combustor that provides the high temperature flue gas.
4. A granular bed filter dust removal system as claimed in claim 1 or 2, wherein: the upper stream of the back-blowing main pipe is connected with a back-blowing fan, and the inlet end of the back-blowing fan is filled with high-temperature flue gas.
5. The granular bed filter dust removal system of claim 1, wherein: clean air manifold on have inferior clean air branch pipe through the inferior clean air branch pipe valve intercommunication that concatenates, back-blowing air manifold on have inferior back-blowing air branch pipe through the inferior back-blowing air branch pipe valve intercommunication that concatenates, inferior granule bed filter dust remover in be provided with at least one inferior granule bed, inferior granule bed on be provided with and be used for filtering the inferior breather pipe that the clean gas that obtains after draws, the outer end of inferior breather pipe stretch out inferior granule bed filter dust remover outside, and through the breather pipe valve that concatenates respectively with inferior clean air branch pipe with inferior back-blowing air branch pipe intercommunication.
6. A granular bed filter dust removal system as claimed in claim 1 or 5, wherein: main clean gas branch pipe on lie in main clean gas branch pipe valve's upper reaches department be connected with the main exhaust duct who has concatenated main discharge valve, dust-containing air main through concatenating main dust-containing air inlet valve's main dust-containing air inlet branch pipe with main granule bed filter dust remover's top intercommunication, main dust-containing air inlet branch pipe on lie in main dust-containing air inlet valve's low reaches department be connected with the main air inlet duct who has concatenated main inlet valve.
7. The granular bed filter dust removal system of claim 6, wherein: inferior clean gas branch pipe on be located inferior clean gas branch pipe valve's upper reaches department be connected with the inferior exhaust duct who has concatenated inferior discharge valve, dusty gas inlet pipe on have concatenated inferior dusty gas admission valve, dusty gas inlet pipe on be located inferior dusty gas admission valve's low reaches department be connected with the inferior admission line who has concatenated inferior admission valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251310.4A CN106975305B (en) | 2017-04-18 | 2017-04-18 | Granular bed filtering and dust removing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710251310.4A CN106975305B (en) | 2017-04-18 | 2017-04-18 | Granular bed filtering and dust removing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106975305A CN106975305A (en) | 2017-07-25 |
| CN106975305B true CN106975305B (en) | 2022-07-15 |
Family
ID=59345315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710251310.4A Active CN106975305B (en) | 2017-04-18 | 2017-04-18 | Granular bed filtering and dust removing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106975305B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497202A (en) * | 2017-10-09 | 2017-12-22 | 李金栋 | A kind of road sweeper of counter-pressure filtration device and the application device |
| CN108404557A (en) * | 2018-02-13 | 2018-08-17 | 宁波大学 | A kind of grain bed dust pelletizing system configured with pre- Hot swapping cooling system |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0572356A1 (en) * | 1992-05-26 | 1993-12-01 | Niro-Aeromatic Ag | Apparatus and process for cleaning with a liquid of filter cartridges in fluidised powder apparatus or in spray-dryers |
| DE59610421D1 (en) * | 1995-12-29 | 2003-06-12 | Glatt Gmbh | Device for dedusting gas |
| CN2897405Y (en) * | 2006-05-16 | 2007-05-09 | 高元松 | Double-sectional and circulating dust-collecting desulfurizer |
| CN101036846A (en) * | 2007-01-31 | 2007-09-19 | 宁波大学 | Granular-layer dust precipitator |
| CN101396629A (en) * | 2007-09-27 | 2009-04-01 | 贵阳铝镁设计研究院 | Cloth bag dust remover and production method |
| CN101934177A (en) * | 2010-09-14 | 2011-01-05 | 宁波大学 | Granular bed gas filtering purifying device |
| CN203123802U (en) * | 2013-01-23 | 2013-08-14 | 沈阳环境科学研究院 | System for eliminating dioxin and heavy metals in incineration gas |
| CN203494237U (en) * | 2013-08-28 | 2014-03-26 | 天津科技大学 | Novel continuous filtering device of particle moving bed |
| CN103673643A (en) * | 2013-11-22 | 2014-03-26 | 宝钢集团广东韶关钢铁有限公司 | High-temperature flue gas waste heat recovery and dust extraction all-in-one device |
| CN104474821A (en) * | 2014-11-26 | 2015-04-01 | 广西南宁华国环境科技有限公司 | Dust removal system |
| CN104785049A (en) * | 2014-01-16 | 2015-07-22 | 苏州亿都建材科技有限公司 | Boiler flue dust purification system |
| CN104913656A (en) * | 2015-06-29 | 2015-09-16 | 安徽省安庆市皖清环保科技有限公司 | De-dusting and heat-absorbing device for high-temperature fuel gas |
| CN205235661U (en) * | 2015-11-23 | 2016-05-18 | 成都易态科技有限公司 | Spray drying tower gas cleaning system |
| CN205653419U (en) * | 2016-03-29 | 2016-10-19 | 新疆广汇中化能源技术开发有限公司 | Blowback device of raw coke oven gas dust remover |
| CN205832868U (en) * | 2016-06-30 | 2016-12-28 | 赣州新盛稀土实业有限公司 | A kind of rare earth waste gas and waste liquid Integrated Processing Unit |
| CN208130734U (en) * | 2017-04-18 | 2018-11-23 | 宁波大学 | A kind of Bed Filtration dust pelletizing system |
-
2017
- 2017-04-18 CN CN201710251310.4A patent/CN106975305B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0572356A1 (en) * | 1992-05-26 | 1993-12-01 | Niro-Aeromatic Ag | Apparatus and process for cleaning with a liquid of filter cartridges in fluidised powder apparatus or in spray-dryers |
| DE59610421D1 (en) * | 1995-12-29 | 2003-06-12 | Glatt Gmbh | Device for dedusting gas |
| CN2897405Y (en) * | 2006-05-16 | 2007-05-09 | 高元松 | Double-sectional and circulating dust-collecting desulfurizer |
| CN101036846A (en) * | 2007-01-31 | 2007-09-19 | 宁波大学 | Granular-layer dust precipitator |
| CN101396629A (en) * | 2007-09-27 | 2009-04-01 | 贵阳铝镁设计研究院 | Cloth bag dust remover and production method |
| CN101934177A (en) * | 2010-09-14 | 2011-01-05 | 宁波大学 | Granular bed gas filtering purifying device |
| CN203123802U (en) * | 2013-01-23 | 2013-08-14 | 沈阳环境科学研究院 | System for eliminating dioxin and heavy metals in incineration gas |
| CN203494237U (en) * | 2013-08-28 | 2014-03-26 | 天津科技大学 | Novel continuous filtering device of particle moving bed |
| CN103673643A (en) * | 2013-11-22 | 2014-03-26 | 宝钢集团广东韶关钢铁有限公司 | High-temperature flue gas waste heat recovery and dust extraction all-in-one device |
| CN104785049A (en) * | 2014-01-16 | 2015-07-22 | 苏州亿都建材科技有限公司 | Boiler flue dust purification system |
| CN104474821A (en) * | 2014-11-26 | 2015-04-01 | 广西南宁华国环境科技有限公司 | Dust removal system |
| CN104913656A (en) * | 2015-06-29 | 2015-09-16 | 安徽省安庆市皖清环保科技有限公司 | De-dusting and heat-absorbing device for high-temperature fuel gas |
| CN205235661U (en) * | 2015-11-23 | 2016-05-18 | 成都易态科技有限公司 | Spray drying tower gas cleaning system |
| CN205653419U (en) * | 2016-03-29 | 2016-10-19 | 新疆广汇中化能源技术开发有限公司 | Blowback device of raw coke oven gas dust remover |
| CN205832868U (en) * | 2016-06-30 | 2016-12-28 | 赣州新盛稀土实业有限公司 | A kind of rare earth waste gas and waste liquid Integrated Processing Unit |
| CN208130734U (en) * | 2017-04-18 | 2018-11-23 | 宁波大学 | A kind of Bed Filtration dust pelletizing system |
Non-Patent Citations (1)
| Title |
|---|
| 《双层滤料颗粒床高温除尘技术及其在冶金炉窑中的应用》;杨国华;《环境工程》;20090430;第27卷(第二期);第15-17页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106975305A (en) | 2017-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105698550B (en) | The sintering smoke purifying system and method for a kind of energy-saving and emission-reduction | |
| CN103373822B (en) | Light calcined magnesia powder calcination device | |
| CN104927925B (en) | Biomass synthesis gas super-pressure cooling and purifying technique and its equipment for liquefaction | |
| CN203837196U (en) | Fresh air filtering system | |
| CN108355420A (en) | A kind of limekiln flue gas recirculation system | |
| CN106975305B (en) | Granular bed filtering and dust removing system | |
| CN106196123A (en) | A kind of boiler smoke dust pelletizing system | |
| CN101721175B (en) | Bag type dust collector with novel air inlet mode and airflow distribution structure | |
| CN115585454A (en) | Automatically controlled burning smoke and dust purifies biomass fuel boiler | |
| CN214261231U (en) | High-efficient dust collector of ground phosphate rock pelletizing production system | |
| CN208320222U (en) | A kind of limekiln flue gas recirculation system | |
| CN101816865B (en) | Dust cleaning control method and device for pulse bag type dust collector | |
| CN208130734U (en) | A kind of Bed Filtration dust pelletizing system | |
| CN106807175A (en) | A kind of Novel dust collection device | |
| CN109701323A (en) | The axis stream Combined dust removal system and method for the high ash-laden gas of high temperature | |
| CN201380026Y (en) | High-temperature filter | |
| CN209092956U (en) | A kind of hot precipitator using flowable particle filter layer dedusting | |
| CN204973358U (en) | Catalytic cracking regeneration flue gas pocket type dust collecting equipment | |
| CN209828585U (en) | Calcium carbide furnace gas purifying and dust removing device | |
| CN209714543U (en) | High temperature resistant sintered plate dust-extraction unit | |
| CN210171077U (en) | Water film dust remover | |
| CN208824177U (en) | Filtration system is used in a kind of processing of dust-laden exhaust gas | |
| CN206746225U (en) | A kind of Novel dust collection device | |
| CN201537597U (en) | Combined type dry coal preparation apparatus | |
| CN219111158U (en) | Needle coke calcining kiln flue gas continuous filtering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |