CN209735199U - Special built-in filter cartridge type dust remover for ash silo and slag silo discharging system - Google Patents
Special built-in filter cartridge type dust remover for ash silo and slag silo discharging system Download PDFInfo
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- CN209735199U CN209735199U CN201821999419.2U CN201821999419U CN209735199U CN 209735199 U CN209735199 U CN 209735199U CN 201821999419 U CN201821999419 U CN 201821999419U CN 209735199 U CN209735199 U CN 209735199U
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- ash
- clean gas
- dust remover
- filter cartridge
- filter
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Abstract
The utility model relates to a dust remover especially relates to a special built-in cartridge type dust remover of unloading of ash storehouse and sediment storehouse, including interconnect's last casing and lower casing, install ash falling pipe, clean gas outlet, filtration and blowback structure on last casing and install the dirty gas inlet on the casing down, it forms a clean gas channel to go up between casing inside wall and the lower casing outer wall, filtration's the end of giving vent to anger is through a return bend and clean gas channel intercommunication, clean gas channel and clean gas outlet intercommunication, ash falling pipe bottom passes dirty gas inlet. The utility model discloses compact structure, area are little, and equipment running cost is low, and the equipment consumptive material is few, and whole low in manufacturing cost, filtration efficiency is high, the filtration rate of allowwing is big, long service life, and corresponding change cycle length, the air consumption is few, maintains convenient to use, and the maintenance work volume is few, the fault rate is low when moving.
Description
Technical Field
the utility model relates to a dust remover especially relates to an ash storehouse and special built-in filter cartridge type dust remover of unloading of sediment storehouse.
Background
The ash and slag formed after coal firing in the thermal power plant can be used as the ingredients for producing cement, hollow bricks and red bricks, and also can be used as the fillers for roads for repairing roads, making roadbeds or paving roads, and having certain use value, so that the power plant can sell ash and slag to obtain considerable economic benefit.
The ash and slag formed by burning coal enter the warehouse from the top of the warehouse through the ash conveying and discharging device, and the ash in the warehouse is discharged into an ash loading vehicle or a ship through the ash discharging device at the bottom of the warehouse, so that the device for realizing the function is a dry ash bulk loader. In the process of unloading the ash, the dry ash bulk machine needs to ensure that the unloading head and all parts of the connected dust cover do not emit ash, and a draught fan needs to be arranged to absorb dusty gas from the inside of the telescopic cylinder, so that the inside of the dry ash bulk machine is always in a negative pressure state. The absorbed dust-containing gas is subjected to dust removal and filtration, and can be discharged into the atmosphere after reaching the national pollutant discharge standard, and the built-in filter cartridge type dust remover is special equipment for realizing the function.
The early stage of dust discharging and removing is to use cloth bags as filter elements of the dust remover, the number of the cloth bags is large, the size is large, the dust remover and the dry dust bulk machine are separately arranged, and the occupied area is large.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a compact structure, area are little, and equipment running cost is low, and the equipment consumptive material is few, and whole low in manufacturing cost, filtration efficiency is high, the filtration rate of allowwing is big, long service life, and corresponding change cycle length is long, and the air consumption is few, maintains convenient to use, and the ash storehouse that maintenance work volume is few, the trouble rate is low when moving and the special built-in filter cartridge type dust remover of unloading of sediment storehouse.
The technical scheme of the utility model: the utility model provides an ash storehouse and special built-in filter cartridge type dust remover of unloading of sediment storehouse, includes interconnect's last casing and lower casing, install ash falling pipe, clean gas outlet, filtration and blowback structure on last casing and install the dirty gas inlet on the casing down, it forms a clean gas passageway to go up between casing inside wall and the lower casing lateral wall, filtration's the end of giving vent to anger is through a return bend and clean gas passageway intercommunication, clean gas passageway and clean gas outlet intercommunication, ash falling pipe bottom passes dirty gas inlet.
Preferably, the filtering structure comprises a plurality of filter cartridge seats and a filter cartridge which are matched with each other, the filter cartridge is positioned between the upper shell and the lower shell, the filter cartridge seat is positioned above the upper shell, and the filter cartridge seat is connected with the clean gas channel through an elbow.
Preferably, the back-blowing structure comprises a back-blowing hose, an electromagnetic valve, an annular air bag and a controller, the annular air bag and the controller are installed at the bottom of the upper shell, the back-blowing hose is connected with the annular air bag and the filter cartridge seat, and the electromagnetic valve is installed on the back-blowing hose.
The annular air bag is used for storing back-blowing air with certain pressure, and the volume of the annular air bag is large enough to reduce the pressure fluctuation of the annular air bag caused by back-blowing air outlet. When the controller sends a back blowing signal, the electromagnetic valve is opened, back blowing gas passes through the hose and is sprayed into the filter cylinder through the spray head connected to the tail end of the hose, the filter cylinder is filled with gas with the volume which is multiple times of the volume of the filter cylinder, and dust attached to the outer side of the cloth bag is blown down. And after the primary blowing is finished, the filter drum restarts to filter the dust filtering gas. When the back-blowing signal is received next time, the back-blowing is started again, the back-blowing frequency of the electromagnetic valve is controlled by the pulse controller, the back-blowing frequency is low when the resistance on the two sides of the filter cylinder is small, the back-blowing frequency is increased when the dust deposition on the outer part of the filter cylinder increases after the filter cylinder runs for a period of time, and the service life of the filter cylinder is prolonged.
Preferably, the upper end of the ash falling pipe is fixed at the central position of the upper shell, a flange connected with a feeding pipe at the bottom of the ash storage is arranged at the top of the ash falling pipe, and the ash falling pipe is made of a seamless steel pipe.
The ash falling pipe is made of a seamless steel pipe, the thickness of the ash falling pipe not only needs to meet the strength requirement, but also considers the abrasion caused by the abrasion of the pipeline due to the ash falling.
Preferably, the lower shell is a conical shell with a large upper part and a small lower part, an inner flanging matched with the lower shell is arranged at the bottom of the upper shell, the clean gas channel is located between the inner flanging and the upper part of the lower shell, and the upper shell and the lower shell are formed by splicing steel plates.
The structural strength of the upper shell and the lower shell meets the use requirement, the inclination angle of the conical shell part of the lower shell is larger than the repose angle of ash, and the ash after the filter drum is backflushed can fall into the bulk machine along the conical shell.
Preferably, the upper shell is provided with a dust falling pipe hole matched with the dust falling pipe and a plurality of filter cylinder seat holes matched with the filter cylinder seats.
Preferably, the airflow channel of the dust remover is composed of the dust-containing gas inlet, the filter cylinder seat, the bent pipe, the clean gas channel and the clean gas outlet, and the draught fan is installed at the clean gas outlet.
Preferably, a loose flange connected with a bulk machine is arranged on the dust-containing gas inlet, and the filter cylinder seat is connected with the upper shell through bolts.
The induced draft fan is used for absorbing gas in the dust remover and the discharging head of the bulk machine, so that the induced draft fan is under negative pressure, and ash leakage in the whole ash discharging process is avoided. The dust-containing gas enters the dust remover from the gas inlet under the action of the induced draft fan. The dust-containing gas inlet is connected with the bulk machine by adopting a loop flange, thereby avoiding the dislocation of bolt holes caused by machining errors and increasing the installation difficulty. The filter cartridge seat is connected with the shell through bolts, and the filter cartridge is convenient and quick to replace. The dust-containing gas is filtered by the filter cylinder to become clean gas, the clean gas enters the filter cylinder seat from the inside of the filter cylinder and then is guided out by a bent pipe arranged on the filter cylinder seat to enter a clean gas cavity formed by enclosing a dust remover shell and a conical shell, a hole is formed in a certain position of the clean gas cavity, the clean gas is led out from the hole, and the clean gas is directly discharged into the atmosphere after passing through a draught fan.
Preferably, the filter cartridges are arranged in an inclined mode, a maximum of 8 filter cartridges are arranged along the circumference of the lower shell, the filtering area reaches 33m2, and the air flow speed is reduced to be below 0.5 m/min.
meanwhile, in order to secure the filtering efficiency of the filter cartridge, the gas filtering speed of the filter cartridge must be reduced, and thus the filtering area must be increased. In order to meet the requirement, the filter cartridges are arranged in an inclined mode, at most 8 filter cartridges are arranged along the circumference of the conical shell, the filtering area is 33m2, the air flow speed is reduced to be below 0.5m/min, the filtering efficiency of the filter cartridges is greatly improved, and the service life of the filter cartridges is prolonged. The filter cartridge adopts a high-efficiency filter cartridge, the discharge concentration can reach the requirement of ultralow discharge of 10mg/m3, and the filter cartridge has no pollution to the environment.
Compare with the bag collector of present usefulness, the utility model discloses there is following advantage:
1. Compact structure and small occupied area. The filter element with the same size has the filter area of the filter cartridge far larger than that of the filter bag, so that the filter cartridge type dust remover has small overall dimension and more compact arrangement under the condition of the same filter area. The built-in filter cartridge type dust remover can be directly installed on the dry ash bulk machine through the flange, so that the floor area of the cloth bag type dust remover which is independently arranged is saved.
2. The equipment running cost is low. The dust remover has the advantages that the dust remover is small in overall size, low in equipment material consumption and low in overall manufacturing cost; compared with cloth bag filtration, the filter cartridge has the advantages of high filtration efficiency, high allowable filtration speed, long service life and long corresponding replacement period. Finally, because the size of a single filter cylinder is small, and the electromagnetic valve and the filter cylinder are configured in a one-to-one mode, the air consumption is reduced when the electromagnetic valve is used for blowing, and the consumption of instrument air is saved.
3. the maintenance and the use are convenient. The quick-wear parts of the dust remover are a filter element and an electromagnetic valve. The filter element is damaged or needs to be replaced in time after the service life of the filter element is over. The sack type dust remover sack is in large quantity, and the quantity that needs to be changed is big, and changes the sack and operate at the dust remover top, need set up the maintenance platform, changes and wastes time and energy. When the built-in filter cartridge type dust remover is replaced, the filter cartridge can be drawn out for replacement only by unscrewing the bolts for connecting the filter cartridge seat and the dust remover shell, and the replacement is convenient and fast. Compared with a bag-type dust collector, the electromagnetic valves of the built-in filter cartridge type dust collector are less in configuration quantity, so that the overhauling workload is less, and the failure rate is low during operation.
Drawings
FIG. 1 is a schematic structural diagram I of the present invention;
FIG. 2 is a schematic structural diagram II of the present invention;
In the figure, 1, a dust falling pipe, 2, an upper shell, 3, a clean gas outlet, 4, an annular air bag, 5, a controller, 6, a lower shell, 7, a dust-containing gas inlet, 8, a filter cylinder seat, 9, a back-blowing hose, 10, a bent pipe, 11, an electromagnetic valve and 12, filter cylinders are arranged.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in figures 1 and 2, the special built-in filter cartridge type dust remover for discharging ash and slag warehouses comprises an ash falling pipe 1, a dust-containing gas inlet 7, an upper shell 2, a lower shell 3, a filtering structure and a back flushing structure.
The filter device comprises a filter cartridge seat 8 arranged on the outer side of the dust remover shell 2 and a filter cartridge 12 arranged on the inner side, under the action of external fan draught force, dust-containing gas enters the dust remover from a dust-containing gas inlet 7, after being filtered by the filter cartridge 12, dust is filtered, and the filtered clean gas enters the filter cartridge seat 8 from the inside of the filter cartridge. The side part of the filter cylinder 8 is provided with a hole, and is matched with a welding installation bent pipe 10, and clean gas enters a clean gas annular channel which is formed by enclosing the dust remover shell 2 and the dust remover conical shell 3 through the bent pipe 10. One side cooperation trompil installation clean gas export 3 on the dust remover casing 2, the clean gas after the filtration is derived from this, and the atmosphere is directly arranged behind the fan.
The back blowing structure comprises an annular air bag 4, a controller 5, a back blowing hose 9, a bent pipe 10 and an electromagnetic valve 11. The electromagnetic valve 11 is arranged outside the annular air bag 4, one end of the back-blowing hose 9 is connected to the electromagnetic valve 11, and the other end of the back-blowing hose is communicated with the filter cartridge seat 8 to spray back-blowing air into the filter cartridge 12. The controller 5 is bound on the annular air bag 4 through a hoop. The annular air bag 4 stores gas for back blowing, when the controller 5 sends back blowing signals, the electromagnetic valve 11 is opened, back blowing gas is sprayed into the interior of the filter cylinder 12 through a spray head connected to the tail end of the hose after passing through the back blowing hose 9, the filter cylinder 12 is filled with gas volume which is multiple times of the volume of the filter cylinder 12 in short time, and dust attached to the outer side of the filter cylinder is blown down. After the completion of one blow, the filter cartridge 12 again starts to filter the dust-filtered gas. When the dust remover starts to operate, the controller 5 can properly reduce the back-blowing frequency when the resistance on two sides of the filter cylinder 12 is small, and the back-blowing frequency is increased when the dust deposition outside the filter cylinder 12 increases after the filter cylinder operates for a period of time. The back-flushing structure improves the filtering efficiency of the filter cartridge 12 and prolongs the service life of the filter cartridge.
Claims (9)
1. The utility model provides a special built-in type dust remover of straining of ash storehouse and sediment storehouse system of unloading which characterized in that: it includes interconnect's last casing and lower casing, installs ash falling pipe, clean gas export, filtration and blowback structure on last casing and installs the dirty gas inlet on the casing down, go up and form a clean gas passageway between casing inside wall and the lower casing outside wall, filtration's the end of giving vent to anger is through a return bend and clean gas passageway intercommunication, clean gas passageway and clean gas export intercommunication, ash falling pipe bottom passes dirty gas inlet.
2. The special built-in filter cartridge type dust remover for the ash storehouse and the slag storehouse discharging system according to claim 1, is characterized in that: the filter structure comprises a plurality of filter cartridge seats and filter cartridges, wherein the filter cartridges are matched with each other, the filter cartridges are positioned between the upper shell and the lower shell, the filter cartridge seats are positioned above the upper shell, and the filter cartridge seats are connected with a clean gas channel through bent pipes.
3. The special built-in filter cartridge type dust remover for the ash storehouse and the slag storehouse discharging system according to claim 2, is characterized in that: the back-blowing structure comprises a back-blowing hose, an electromagnetic valve, an annular air bag and a controller, wherein the annular air bag and the controller are installed at the bottom of the upper shell, the back-blowing hose is connected with the annular air bag and a filter cartridge seat, and the electromagnetic valve is installed on the back-blowing hose.
4. The special built-in filter cartridge type dust remover for the ash storehouse and the slag storehouse discharging system according to claim 1, is characterized in that: the upper end of the ash falling pipe is fixed at the central position of the upper shell, a flange connected with an inlet pipe at the bottom of the ash storehouse is arranged at the top of the ash falling pipe, and the ash falling pipe is made of a seamless steel pipe.
5. The special built-in filter cartridge type dust remover for the ash storehouse and the slag storehouse discharging system according to claim 3, is characterized in that: the lower shell is a conical shell with a large upper part and a small lower part, an inner flanging matched with the lower shell is arranged at the bottom of the upper shell, the clean gas channel is located between the inner flanging and the upper part of the lower shell, and the upper shell and the lower shell are formed by splicing steel plates.
6. The special built-in filter cartridge type dust remover for the ash storehouse and the slag storehouse discharging system according to claim 5, is characterized in that: the upper shell is provided with a dust falling pipe hole matched with the dust falling pipe and a plurality of filter cylinder seat holes matched with the filter cylinder seat.
7. The special built-in filter cartridge type dust remover for the ash storehouse and the slag storehouse discharging system according to claim 6, is characterized in that: the dust remover comprises a dust-containing gas inlet, a filter cylinder seat, a bent pipe, a clean gas channel and a clean gas outlet, wherein the dust-containing gas inlet, the filter cylinder seat, the bent pipe, the clean gas channel and the clean gas outlet form an airflow channel of the dust remover, and a draught fan is installed at the clean gas outlet.
8. The special built-in filter cartridge type dust remover for the ash storehouse and the slag storehouse discharging system according to claim 7, is characterized in that: the dust-containing gas inlet is provided with a loose flange connected with the bulk machine, and the filter cylinder seat is connected with the upper shell through bolts.
9. The special built-in filter cartridge type dust remover for the ash storehouse and the slag storehouse discharging system according to claim 2, is characterized in that: the filter cartridges are arranged in an inclined mode, at most 8 filter cartridges are arranged along the circumference of the lower shell, the filtering area reaches 33m2, and the air flow speed is reduced to be below 0.5 m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821999419.2U CN209735199U (en) | 2018-11-30 | 2018-11-30 | Special built-in filter cartridge type dust remover for ash silo and slag silo discharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821999419.2U CN209735199U (en) | 2018-11-30 | 2018-11-30 | Special built-in filter cartridge type dust remover for ash silo and slag silo discharging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209735199U true CN209735199U (en) | 2019-12-06 |
Family
ID=68702306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821999419.2U Expired - Fee Related CN209735199U (en) | 2018-11-30 | 2018-11-30 | Special built-in filter cartridge type dust remover for ash silo and slag silo discharging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209735199U (en) |
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2018
- 2018-11-30 CN CN201821999419.2U patent/CN209735199U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191206 Termination date: 20211130 |