CN213221318U - Dust remover for treating potassium chloride drying waste gas - Google Patents
Dust remover for treating potassium chloride drying waste gas Download PDFInfo
- Publication number
- CN213221318U CN213221318U CN202021278142.1U CN202021278142U CN213221318U CN 213221318 U CN213221318 U CN 213221318U CN 202021278142 U CN202021278142 U CN 202021278142U CN 213221318 U CN213221318 U CN 213221318U
- Authority
- CN
- China
- Prior art keywords
- pipe
- air inlet
- ash bucket
- waste gas
- bag
- 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
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
A dust remover for treating potassium chloride drying waste gas comprises an air inlet pipe, an ash bucket, a shell, an exhaust pipe and a heater, wherein the air inlet pipe is used for conveying the waste gas to the ash bucket; the ash bucket is communicated with the air inlet pipe through an air inlet arranged on the side wall of the ash bucket; a bag chamber is arranged in the shell and is communicated with the ash hopper through a through hole arranged on a bottom plate of the shell; a filter bag with an opening at one end is arranged in the bag chamber, the closed end of the filter bag is fixed at the top of the bag chamber, and the opening end of the filter bag is sleeved on the through hole of the bottom plate of the shell; the heater is arranged on the outer surface of the ash bucket, and the heat-insulating layer is arranged outside the heater. The ash bucket sets up heater and heat preservation and can heat and keep warm for the waste gas that gets into the ash bucket, makes the waste gas temperature be greater than the dew point temperature of waste gas all the time, prevents waste gas dewfall and dust caking, prevents that the filter bag from blockking up, prevents that ash bucket and casing from corroding.
Description
Technical Field
The utility model relates to a dust remover field, more specifically relates to a dust remover for handling potassium chloride stoving waste gas.
Background
In the production of potassium chloride fertilizer, a large amount of waste gas is generated in the drying process of potassium chloride, and the waste gas contains dust such as potassium chloride, magnesium chloride, sodium chloride and the like and carries a large amount of moisture. In the prior art, a primary cyclone dust removal and a secondary pulse type bag-type dust remover are generally adopted for waste gas treatment, the dust remover runs stably in summer, the dust removal effect is good, but when the temperature is lower in winter, the phenomenon of condensation can occur, the shell is corroded, a filter bag is hardened, the air entraining amount is reduced, and even the bag-type dust remover can not run. If only a primary cyclone dust collector is adopted for dust removal in winter production, the concentration of the discharged waste gas and dust is too high.
The dew condensation is caused by low temperature in winter, overhigh water content in the dried waste gas, the relationship between the dew point and factors such as gas pressure, water content and the like, the dew point temperature of the potassium chloride dried waste gas is less than or equal to 60 ℃, when the temperature in the dust remover is lower than the dew point temperature, the waste gas in the dust remover can be subjected to the dew condensation phenomenon, dust adhered to the filter bag can be agglomerated, and finally, the filter holes of the filter bag are blocked.
The dew condensation causes dissolution of chloride ions in the dust attached to the housing of the dust collector, causing corrosion of the housing, and finally causing damage to the housing. In addition, when the compressed air is used for carrying out back flushing and dust cleaning on the filter bag, the temperature in an injection area is sharply reduced due to the injection of the compressed air, and the condensation of waste gas around the filter bag and the agglomeration of dust are accelerated.
Therefore, how to overcome the defects of equipment loss and low waste gas purification efficiency caused by dew formation generated by the bag-type dust remover in low air temperature and back-blowing dust removal is a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model discloses a dust remover for treating potassium chloride drying waste gas, which comprises an air inlet pipe 1, an ash bucket 2, a shell 3, an exhaust pipe 4 and a heater 5, wherein the air inlet pipe 1 is used for conveying the waste gas to the ash bucket 2; the ash hopper 2 is communicated with the air inlet pipe 1 through an air inlet arranged on the side wall of the ash hopper 2; a bag chamber 6 is arranged in the shell 3, and the bag chamber 6 is communicated with the ash bucket 2 through a through hole 7 arranged on a bottom plate of the shell 3; a filter bag 8 with an opening at one end is arranged in the bag chamber 6, the closed end of the filter bag 8 is fixed at the top of the bag chamber 6, and the opening end of the filter bag 8 is sleeved on a through hole 7 of the bottom plate of the shell 3; the exhaust pipe 4 is communicated with the bag chamber 6 through an air outlet arranged on the side wall of the bag chamber 6 and is used for exhausting filtered clean gas; the heater 5 is installed on the outer surface of the ash bucket 2, and a heat preservation layer is installed outside the heater 5.
According to an embodiment of the present invention, the exhaust gas purification device further comprises a bypass pipe 9, a bypass valve 10, a temperature sensor 11, and an air inlet valve 12, wherein the bypass pipe 9 communicates the air inlet pipe 1 and the exhaust pipe 4; the bypass valve 10 is provided on the bypass pipe 9; the temperature sensor 11 is arranged on the air inlet pipe 1 and is positioned at the front end of the communication part of the air inlet pipe 1 and the bypass pipe 9; the air inlet valve 12 is arranged on the air inlet pipe 1 and is positioned at the rear end of the communication part of the air inlet pipe 1 and the bypass pipe 9.
According to one embodiment of the present invention, the ash discharging device further comprises an ash discharging valve 13, wherein the ash discharging valve 13 comprises an upper ash discharging valve 131 and a lower ash discharging valve 132; the upper ash discharge valve 131 is arranged at the discharge port of the ash bucket 2; the lower ash discharge valve 132 is arranged at the bottom of the upper ash discharge valve 131; and a heat insulation layer is arranged between the ash bucket 2 and the upper ash discharge valve 131.
According to an embodiment of the present invention, the bag-type air-conditioning system further comprises an induced draft fan 14, a back-blowing fan 15 and a back-blowing pipe 16, wherein the induced draft fan 14 is communicated with the bag chamber 6 through the exhaust pipe 4; the back-blowing fan 15 is communicated with the bag chamber 6 through the back-blowing pipe 16; the back-blowing pipe 16 is communicated with the bag chamber 6 through a back-blowing opening arranged on the side wall of the bag chamber 6; and the outer surfaces of the induced draft fan 14, the back blowing fan 15 and the back blowing pipe 16 are all provided with heat insulation layers.
According to the utility model discloses an embodiment still includes compressed air storage tank 17, compressed air storage tank 17 communicates intake pipe 1 through compressed air pipeline 18.
According to an embodiment of the present invention, the bag-shaped air bag further comprises a pressure sensor 21, wherein the pressure sensor 21 is disposed at the air outlet of the bag chamber 6.
According to one embodiment of the present invention, the device further comprises a bracket 19, wherein the bracket 19 is installed on the bottom plate of the housing 3; and a heat insulation layer is arranged between the shell 3 and the bracket 19.
According to the utility model discloses an embodiment, the heat preservation is all installed to the surface of casing 3, intake pipe 1, blast pipe 4, bypass pipe 9.
According to one embodiment of the present invention, the bag chamber 6 is provided in plurality, and is arranged symmetrically in two rows; an interlayer 20 is also arranged in the shell 3; the interlayer 20 is arranged between the two rows of bag chambers 6; the air inlet pipe 1, the air outlet pipe 4, the bypass pipe 9 and the blowback pipe 16 in the shell 3 are all arranged in the interlayer 20.
Compared with the prior art, the heater is arranged outside the ash bucket and can heat the waste gas entering the ash bucket, so that the temperature of the waste gas is always higher than the dew point temperature of the waste gas, the waste gas is prevented from dewing and dust caking, the filter bag is prevented from being blocked, the ash bucket and the shell are prevented from being corroded, the heat loss can be reduced by arranging the heat-insulating layers on the outer surfaces of the ash bucket, the shell, the pipeline and the like, and the temperature of the waste gas is further kept to be higher than the dew point temperature of; when the temperature of the waste gas is too high, a bypass pipe is arranged, so that the filter bag can be prevented from being damaged by high-temperature gas; the filtered high-temperature clean gas is used for blowing and cleaning the filter bag, so that the phenomenon of condensation caused by overlarge gas temperature difference around the filter bag can be prevented; the ash discharge valve is provided with two layers to prevent external low-temperature air from entering the ash hopper; the interlayer can reduce the heat loss of the pipeline, and when the access door is opened during equipment maintenance, cold air is prevented from entering the dust remover; the purifier has the advantages of simple structure, reasonable layout and high working efficiency.
Drawings
FIG. 1 is a schematic view of the overall construction of a dust collector;
FIG. 2 is a schematic view of the overall structure of a dust collector including a blowback fan and the like;
fig. 3 is a schematic side view of a precipitator.
In the figure, 1, an air inlet pipe, 2, an ash hopper, 3, a shell, 4, an air outlet pipe, 5, a heater, 6, a bag chamber, 7, a through hole, 8, a filter bag, 9, a bypass pipe, 10, a bypass valve, 11, a temperature sensor, 12, an air inlet valve, 13, an ash discharge valve, 131, an upper ash discharge valve, 132, a lower ash discharge valve, 14, an induced draft fan, 15, a back blowing fan, 16, a back blowing pipe, 17, an air storage tank, 18, a compressed air pipeline, 19, a support, 20, an interlayer and 21, a pressure sensor.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like elements and techniques of the present invention so that advantages and features of the present invention may be more readily understood when implemented in a suitable environment. The following description is an embodiment of the present invention, and other embodiments related to the claims that are not explicitly described also fall within the scope of the claims.
Fig. 1 shows a schematic view of the overall structure of the dust removing device.
As shown in fig. 1, a dust remover for treating potassium chloride drying waste gas comprises an air inlet pipe 1, an ash bucket 2, a shell 3, an air outlet pipe 4 and a heater 5, wherein the air inlet pipe 1 is used for conveying waste gas; the ash hopper 2 is communicated with the air inlet pipe 1 through an air inlet arranged on the side wall of the ash hopper 2; a bag chamber 6 is arranged in the shell 3, and the bag chamber 6 is communicated with the ash bucket 2 through a through hole 7 arranged on a bottom plate of the shell 3; a filter bag 8 with an opening at one end is arranged in the bag chamber 6, the closed end of the filter bag 8 is fixed at the top of the bag chamber 6, and the opening end of the filter bag 8 is sleeved on a through hole 7 of the bottom plate of the shell 3; the exhaust pipe 4 is communicated with the bag chamber 6 through an air outlet arranged on the side wall of the bag chamber 6 and is used for exhausting filtered clean gas; the heater 5 is installed on the outer surface of the ash bucket 2, and a heat preservation layer is installed outside the heater 5.
The potassium chloride waste gas contains dust such as potassium chloride, magnesium chloride, sodium chloride and the like and carries a large amount of moisture, if the temperature of the waste gas entering the dust remover is lower than the dew point temperature of the waste gas, a condensation phenomenon can be generated, the condensation can cause dust agglomeration, if the dust agglomeration is carried out on the filter bag 8, the filter bag 8 can be blocked or even damaged, and if the dust agglomeration is carried out on the ash bucket 2, the ash bucket 2 can be corroded or even damaged.
The intake pipe 1 is used for conveying waste gas to the ash bucket 2, for example, one end of the intake pipe 1 is communicated with a waste gas outlet of the potassium chloride drying device, the other end is communicated with a gas inlet of the ash bucket 2, and potassium chloride drying waste gas is conveyed into the ash bucket 2.
The ash bucket 2 is fixed on the bottom plate of the shell 3, and the ash bucket 2 can adopt a quadrangular pyramid structure and can also be other structures which are easy to collect dust, such as cones, triangular pyramids and the like.
Be provided with the air inlet on the 2 lateral walls of ash bucket for intercommunication intake pipe 1 makes waste gas get into ash bucket 2 from the air inlet in, 2 tippy portions of ash bucket set up the discharge opening and be used for excreting the dust.
An inlet valve is arranged at the air inlet of the ash bucket 2,
The bag chamber 6 is a cavity used for arranging the filter bag 8 in the shell 3, the upper part of the side wall of the bag chamber 6 is provided with an air outlet, the bag chamber 6 is communicated with the exhaust pipe 4 through the air outlet, and clean air filtered by the filter bag 8 enters the bag chamber 6 and then is exhausted into the atmosphere through the air outlet pipe.
An outlet valve is arranged at the air outlet of the bag chamber 6.
The bag chamber 6 is communicated with the ash bucket 2 through a through hole 7 arranged on the bottom plate of the shell 3, the through hole 7 is provided with a plurality of through holes, and the number of the through holes is the same as that of the filter bags 8.
A plurality of filter bags 8 are arranged in the bag chamber 6, the closed ends of the filter bags 8 are fixed at the top of the bag chamber 6, the opening is downward, the opening ends are fixed at the through holes 7 of the bottom plate of the shell 3, and the through holes 7 on the bottom plate of the shell 3 are communicated with the ash hopper 2.
Be provided with heater 5 on ash bucket 2's the surface, heater 5 can be arbitrary heater, the utility model discloses preferred adoption PTC heater, PTC heater have the advantage that the thermal resistance is little, heat exchange efficiency is high, are automatic constant temperature, electric heater of power saving.
The heater 5 can continuously heat the exhaust gas entering the ash bucket 2, and can also automatically heat, for example, when the temperature of the exhaust gas in the ash bucket 2 is lower than 100 ℃, the heater 5 automatically heats, and when the temperature of the exhaust gas is higher than or equal to 100 ℃, the heater 5 stops heating.
The surface of heater 5 still is provided with the heat preservation, and the heat preservation can be the insulation material who has the thermal-insulated effect of heat preservation wantonly, the utility model discloses preferred adoption silicate insulation material has that the coefficient of heat conductivity is low, the heat waste is little, the advantage that materials thickness is few.
The dust remover during operation, inlet valve and outlet valve are opened, potassium chloride stoving waste gas is at first along intake pipe 1 in the air inlet gets into ash bucket 2, great dust particle can directly subside in ash bucket 2, fall into ash bucket 2 bottom, less granule filters in 7 entering filter bag 8 along with the air current through the through-hole, under the filtration of filter bag 8, clean gas passes filter bag 8 and gets into bag room 6, discharge into the atmosphere through gas outlet through blast pipe 4, it falls into ash bucket 2 bottom under the action of gravity to be blockked by filter bag 8 to stay the dust in filter bag 8, discharge through the discharge opening. The heater 5 on the ash bucket 2 automatically heats the waste gas entering the ash bucket 2, so that the temperature of the waste gas is always higher than the dew point temperature of the waste gas.
The heater is arranged on the outer surface of the ash bucket, and can heat the waste gas entering the ash bucket, so that the temperature of the waste gas is always higher than the dew point temperature of the waste gas, thereby preventing the waste gas from dewing and dust caking when the temperature of the waste gas is low, and preventing the filter bag from being blocked and the ash bucket and the shell from being corroded; the heater is externally provided with the heat preservation layer, so that the heater can be prevented from heating the outside air when heating the ash bucket, the heat emission of the ash bucket is reduced, the temperature of waste gas entering the dust remover is prevented from being reduced, energy can be saved, and the working efficiency is improved. The dust remover has the advantages of reasonable layout, simple purification process and high working efficiency.
Fig. 2 shows a schematic view of a dust separator comprising a blowback fan or the like.
As shown in fig. 2, the system further comprises a bypass pipe 9, a bypass valve 10, a temperature sensor 11 and an air inlet valve 12, wherein the bypass pipe 9 is communicated with the air inlet pipe 1 and the air outlet pipe 4; the bypass valve 10 is provided on the bypass pipe 9; the temperature sensor 11 is arranged on the air inlet pipe 1 and is positioned at the front end of the communication part of the air inlet pipe 1 and the bypass pipe 9; the air inlet valve 12 is arranged on the air inlet pipe 1 and is positioned at the rear end of the communication part of the air inlet pipe 1 and the bypass pipe 9.
The bypass pipe 9 is a vent pipe that communicates the intake pipe 1 and the exhaust pipe 4.
The front end of the communication part of the air inlet pipe 1 and the bypass pipe 9 refers to the end from the communication part of the air inlet pipe 1 and the potassium chloride drying device to the communication part of the air inlet pipe 1 and the bypass pipe 9.
The rear end of the connection part of the air inlet pipe 1 and the bypass pipe 9 refers to the end from the connection part of the air inlet pipe 1 and the bypass pipe 9 to the connection part of the air inlet pipe 1 and the ash bucket 2.
When potassium chloride drying device normally worked, drying temperature in the drying device cavity was unchangeable, if drying device did not throw when expecting, can cause the exhaust temperature of waste gas too high in the drying device, inside if high temperature waste gas got into the dust remover through intake pipe 1, can lead to filter bag 8 to damage. In order to prevent the high-temperature waste gas from damaging the filter bag 8, the waste gas is prevented from entering the dust remover, when the temperature of the waste gas exhausted by the drying device is too high, the air inlet pipe 1 is closed, the bypass pipe 9 is opened, and the high-temperature waste gas is directly exhausted into the atmosphere through the bypass pipe 9 and the exhaust pipe 4.
When the temperature of the waste gas is normal, the air inlet valve 12 is opened, the bypass valve 10 is closed, and the waste gas enters the dust remover through the air inlet pipe 1 to be filtered; when the temperature sensor 11 detects that the temperature of the exhaust gas is too high, the temperature is fed back to the control system, the control system controls the air inlet valve 12 to be closed and the bypass valve to be opened, and at the moment, the exhaust gas does not enter the dust remover and is directly discharged into the atmosphere through the bypass pipe 9 and the exhaust pipe 4.
The beneficial effects that set up the temperature-sensing ware are that the temperature that can real-time supervision waste gas, according to the operating condition of the temperature of waste gas in time adjustment clarifier, set up the bypass pipe and can prevent that high temperature waste gas from damaging the filter bag, this structural design is reasonable, and the flow is simple, and the practicality is good.
According to one embodiment of the present invention, the ash discharging device further comprises an ash discharging valve 13, wherein the ash discharging valve 13 comprises an upper ash discharging valve 131 and a lower ash discharging valve 132; the upper ash discharge valve 131 is arranged at the discharge port of the ash bucket 2; the lower ash discharge valve 132 is arranged at the bottom of the upper ash discharge valve 131; and a heat insulation layer is arranged between the ash bucket 2 and the upper ash discharge valve 131.
The capacity of the upper dust discharging valve 131 is smaller than or equal to that of the lower dust discharging valve 132, and a certain amount of dust is always reserved inside the lower dust discharging valve 132.
The dust in the dust hopper 2 enters the upper dust discharging valve 131 through the discharging opening, and when the weight of the dust accumulated in the upper dust discharging valve 131 reaches a certain weight, the material is automatically discharged, for example, when the weight of the dust reaches 50kg, the material is discharged to the lower dust discharging valve 13, and when the weight of the dust in the lower dust discharging valve 13 reaches a certain weight, the material is automatically discharged, for example, when the weight of the dust reaches 100 kg. The upper ash discharging valve 131 and the lower ash discharging valve 132 discharge materials at different times, and a certain amount of dust is always reserved in the lower ash discharging valve 132, for example, 50kg of dust is always reserved in the lower ash discharging valve 132, so that the tightness of the ash discharging valve 13 is ensured, and external air cannot enter into a dust removing chamber during discharging.
The beneficial effects that set up thermal insulation layer between ash bucket and the unloading valve are that, block heat-conduction between ash bucket and the discharge valve, prevent that the waste gas temperature in the ash bucket from reducing, the unloading valve sets up two-layer beneficial effect and has guaranteed the seal of unloading valve, prevents that outside air from getting into the ash bucket, prevents that the temperature of waste gas from reducing and producing the dewfall phenomenon.
According to an embodiment of the present invention, the bag-type air-conditioning system further comprises an induced draft fan 14, a back-blowing fan 15 and a back-blowing pipe 16, wherein the induced draft fan 14 is communicated with the bag chamber 6 through the exhaust pipe 4; the back-blowing fan 15 is communicated with the bag chamber 6 through the back-blowing pipe 16; the back-blowing pipe 16 is communicated with the bag chamber 6 through a back-blowing opening arranged on the side wall of the bag chamber 6; and the outer surfaces of the induced draft fan 14, the back blowing fan 15 and the back blowing pipe 16 are all provided with heat insulation layers.
One end of the induced draft fan 14 is communicated with the exhaust port of the exhaust pipe 4, the other end of the induced draft fan is communicated with the chimney, when the induced draft fan 14 works, clean gas in the exhaust pipe 4 is blown to the chimney and then is exhausted into the atmosphere, and negative pressure is generated in the exhaust pipe 4 and the dust remover to enable the gas to circulate.
One end of the back flushing pipe 16 is communicated with the chimney, the other end is communicated with the bag chamber 6 through a back flushing opening arranged on the side wall of the bag chamber 6, and a back flushing valve is arranged at the back flushing opening.
When the filter bag 8 filters waste gas, a part of dust left in the filter bag 8 can be adhered to the inner wall of the filter bag 8, the dust cannot be caked after long-time cleaning, the filter bag 8 is blocked or even damaged, and therefore the filter bag 8 needs to be dedusted and cleaned in time.
When the dust remover works, the induced draft fan 14 is opened to blow clean gas in the exhaust pipe 4 into the chimney, the clean gas is discharged into the atmosphere through the chimney, and the gas in the exhaust pipe 4 and the dust remover generates negative pressure under the action of the induced draft fan, so that waste gas is continuously and rapidly filtered, flows and is discharged into the atmosphere; when dust adheres to the filter bag 8, the blowback valve is opened, the inlet valve and the outlet valve are closed, the blowback fan 15 blowbacks the filtered clean gas into the bag chamber 6, and the filtered clean gas is used for blowing and dedusting the filter bag 8.
The heat preservation layer is arranged on the outer surfaces of the induced draft fan, the back-blowing pipe and the back-blowing fan, and the heat preservation layer has the advantages that heat preservation can be performed on clean gas, so that the temperature difference between the clean gas back blown into the bag chamber and the temperature of the internal waste gas of the filter bag is not large, and the phenomenon of condensation caused by the large temperature difference of the gas around the filter bag when the filter bag is subjected to back-blowing and dust removal is prevented.
According to the utility model discloses an embodiment still includes compressed air storage tank 17, compressed air storage tank 17 communicates intake pipe 1 through compressed air pipeline 18.
The compressed air storage tank 17 is used for blowing dust in the air inlet pipe 1, and an air compressor can also be used for providing high-pressure air to blow dust in the air inlet pipe 1.
The compressed air storage tank 17 is communicated with a compressed air pipeline 18, an air outlet of the compressed air pipeline 18 is arranged in the air inlet pipe 1, and a compressed air spray head is arranged at an air outlet of the compressed air pipeline 18.
When dust is deposited in the air inlet pipe 1, compressed air in the compressed air storage tank 17 enters a compressed air nozzle through a compressed air pipeline 18 to perform dust cleaning treatment on the air inlet pipe 1.
The beneficial effect of setting up the compressed air storage tank and carrying out jetting to the dust in the inlet duct is that, can prevent that the dust in the inlet duct from piling up, prevents to block up the pipeline, improves the work efficiency of dust remover.
According to one embodiment of the present invention, the device further comprises a bracket 19, wherein the bracket 19 is installed on the bottom plate of the housing 3; a heat insulation layer is arranged between the shell 3 and the bracket 19.
The bracket 19 is mounted on the bottom plate of the housing 3 of the precipitator for supporting the precipitator.
The support 19 and the shell 3 can be connected through threads, bolts, welding and the like, in the embodiment, flange connection is preferably adopted, and the heat insulation layer is arranged in the flange, so that heat transfer generated between steel connection is reduced.
The beneficial effects that support and casing junction set up the heat preservation are that, can effectively prevent the heat transfer between casing and the support, prevent casing calorific loss, prevent that the exhaust gas temperature from reducing and producing the dewfall phenomenon, avoid the emergence of dust caking phenomenon.
According to the utility model discloses an embodiment, the heat preservation is all installed to the surface of casing 3, intake pipe 1, blast pipe 4, bypass pipe 9.
The beneficial effects that set up the insulation material layer at the surface of casing, intake pipe, blast pipe are that, can reduce calorific loss, prevent that exhaust gas temperature is less than the dew point temperature of waste gas to produce the dewfall scene, avoid the dust to produce the caking phenomenon, prevent that the filter bag from blockking up and ash bucket and casing corruption.
Fig. 3 shows a schematic side view of a precipitator.
As shown in fig. 3, a pressure sensor 21 is further included, and the pressure sensor 21 is disposed at the air outlet of the pouch compartment 6.
A pressure sensor 21 is arranged at the air outlet of the dust removal chamber and used for monitoring the air pressure at the air outlet of the bag chamber.
The pressure sensor 21 can set a pressure value, for example, the pressure value can be set to be less than or equal to 1500 Pa, when the cloth bag in the dust removing chamber falls off and breaks, the pressure exceeds the set value, the phenomenon alarm automatically alarms at the moment, and the pressure mutation signal is also transmitted to the main control operator station to alarm. At the moment, the air inlet valve 12, the exhaust valve and the blowback valve are all closed through PLC automatic control, the dust removal chamber starts off-line work, and maintainers can enter the dust removal chamber to be maintained to replace and maintain the cloth bag.
The beneficial effect of setting up pressure sensors in sack room gas vent department is that, can be through the operating condition of the atmospheric pressure monitoring filter bag in the sack room, when the filter bag damaged, can in time discover, in time change prevents that unpurified waste gas from discharging into the atmosphere.
According to one embodiment of the present invention, the bag chamber 6 is provided in plurality, and is arranged symmetrically in two rows; an interlayer 20 is also arranged in the shell 3; the interlayer 20 is arranged between the two rows of bag chambers 6; the air inlet pipe 1, the air outlet pipe 4, the bypass pipe 9 and the blowback pipe 16 in the shell 3 are all arranged in the interlayer 20.
The bag rooms 6 are arranged in two rows and are symmetrically arranged, each bag room 6 is correspondingly provided with one ash bucket 2, and the ash buckets 2 corresponding to the bag rooms 6 are also arranged in two rows and are symmetrically arranged.
An interlayer 20 is arranged between the two rows of bag chambers 6, and the interlayer 20 is positioned in the shell 3.
In the intermediate layer 20 was all arranged to the access door, access hole, access passage of dust remover, the pipeline in the intermediate layer 20 was arranged by layer, and the bottom was intake pipe 1, and the centre is blowback pipe 16, and the top is blast pipe 4.
The interlayer 20 is subjected to heat preservation sealing treatment, heat generated by the pipeline is in the sealed interlayer 20, the pipeline and the like are ensured to be in a space with a temperature higher than a dew point temperature by utilizing the emitted waste heat, and the influence of cold air generated in the opening process of an access door and an access hole on the work of a dust remover is avoided.
The beneficial effect that sets up the intermediate layer is, can make the pipeline be in the intermediate layer, reduces calorific loss, when overhaul of the equipments opened the access door, prevents that cold air from getting into inside waste gas dewfall, the dust caking that leads to of dust remover, prevents that the filter bag from blockking up and ash bucket and casing are corroded.
The heater is arranged outside the ash bucket to heat the waste gas entering the ash bucket, so that the temperature of the waste gas is always higher than the dew point temperature of the waste gas, the condensation and the agglomeration of the waste gas are prevented, the filter bag is prevented from being blocked, the ash bucket and the shell are prevented from being corroded, the heat loss can be reduced by arranging the heat insulation layers on the outer surfaces of the ash bucket, the shell, the pipeline and the like, and the temperature of the waste gas is further kept higher than the dew point temperature of the waste gas; when the temperature of the waste gas is too high, a bypass pipe is arranged, so that the filter bag can be prevented from being damaged by high-temperature gas; the filtered high-temperature clean gas is used for blowing and cleaning the filter bag, so that the phenomenon of condensation caused by overlarge gas temperature difference around the filter bag can be prevented; the ash discharge valve is provided with two layers to prevent external low-temperature air from entering the ash hopper; the interlayer can reduce the heat loss of the pipeline, and when the access door is opened during equipment maintenance, cold air is prevented from entering the dust remover; the purifier has the advantages of simple structure, reasonable layout and high working efficiency.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.
Claims (9)
1. A dust remover for treating potassium chloride drying waste gas is characterized by comprising an air inlet pipe (1), an ash bucket (2), a shell (3), an exhaust pipe (4) and a heater (5),
the air inlet pipe (1) is used for conveying waste gas to the ash bucket (2);
the ash bucket (2) is communicated with the air inlet pipe (1) through an air inlet arranged on the side wall of the ash bucket (2);
a bag chamber (6) is arranged in the shell (3), and the bag chamber (6) is communicated with the ash bucket (2) through a through hole (7) arranged on a bottom plate of the shell (3);
a filter bag (8) with an opening at one end is arranged in the bag chamber (6), the closed end of the filter bag (8) is fixed at the top of the bag chamber (6), and the open end of the filter bag (8) is sleeved on a through hole (7) of the bottom plate of the shell (3);
the exhaust pipe (4) is communicated with the bag chamber (6) through an air outlet formed in the side wall of the bag chamber (6) and used for exhausting filtered clean gas;
the heater (5) is installed on the outer surface of the ash bucket (2), and a heat insulation layer is installed outside the heater (5).
2. A precipitator in accordance with claim 1, further comprising a bypass pipe (9), a bypass valve (10), a temperature sensor (11), an inlet valve (12),
the bypass pipe (9) is communicated with the air inlet pipe (1) and the air outlet pipe (4);
the bypass valve (10) is arranged on the bypass pipe (9);
the temperature sensor (11) is arranged on the air inlet pipe (1) and is positioned at the front end of the communication part of the air inlet pipe (1) and the bypass pipe (9);
and the air inlet valve (12) is arranged on the air inlet pipe (1) and is positioned at the rear end of the communicated part of the air inlet pipe (1) and the bypass pipe (9).
3. A precipitator in accordance with claim 1, further comprising an ash discharge valve (13),
the ash discharge valve (13) comprises an upper ash discharge valve (131) and a lower ash discharge valve (132);
the upper ash discharge valve (131) is arranged at the discharge port of the ash bucket (2);
the lower ash discharge valve (132) is arranged at the bottom of the upper ash discharge valve (131);
and a heat insulation layer is arranged between the ash hopper (2) and the upper ash discharge valve (131).
4. A precipitator in accordance with claim 1, further comprising an induced draft fan (14), a blowback fan (15), and a blowback pipe (16),
the induced draft fan (14) is communicated with the bag chamber (6) through the exhaust pipe (4);
the back-blowing fan (15) is communicated with the bag chamber (6) through the back-blowing pipe (16);
the back-blowing pipe (16) is communicated with the bag chamber (6) through a back-blowing opening arranged on the side wall of the bag chamber (6);
and the outer surfaces of the induced air fan (14), the back blowing fan (15) and the back blowing pipe (16) are all provided with heat insulation layers.
5. A precipitator in accordance with claim 1, further comprising a compressed air storage tank (17),
the compressed air storage tank (17) is communicated with the air inlet pipe (1) through a compressed air pipeline (18).
6. A precipitator in accordance with claim 1, further comprising a pressure sensor (21),
the pressure sensor (21) is arranged at the air outlet of the bag chamber (6).
7. A precipitator in accordance with claim 1, further comprising a bracket (19),
the bracket (19) is arranged on the bottom plate of the shell (3);
and a heat insulation layer is arranged between the shell (3) and the bracket (19).
8. A precipitator according to claim 2, wherein the outer surfaces of the casing (3), the inlet pipe (1), the outlet pipe (4) and the bypass pipe (9) are provided with insulating layers.
9. A precipitator in accordance with any one of claims 1-8, wherein the bag chambers (6) are provided in plurality, arranged symmetrically in two rows;
an interlayer (20) is also arranged in the shell (3);
the interlayer (20) is arranged between the two rows of bag chambers (6);
an air inlet pipe (1), an air outlet pipe (4), a bypass pipe (9) and a back flushing pipe (16) in the shell (3) are all arranged in the interlayer (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021278142.1U CN213221318U (en) | 2020-07-02 | 2020-07-02 | Dust remover for treating potassium chloride drying waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021278142.1U CN213221318U (en) | 2020-07-02 | 2020-07-02 | Dust remover for treating potassium chloride drying waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213221318U true CN213221318U (en) | 2021-05-18 |
Family
ID=75887592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021278142.1U Active CN213221318U (en) | 2020-07-02 | 2020-07-02 | Dust remover for treating potassium chloride drying waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213221318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113967396A (en) * | 2021-10-25 | 2022-01-25 | 株洲火炬工业炉有限责任公司 | High-temperature dust collection and waste heat utilization device for flue gas of zinc volatilization kiln |
-
2020
- 2020-07-02 CN CN202021278142.1U patent/CN213221318U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113967396A (en) * | 2021-10-25 | 2022-01-25 | 株洲火炬工业炉有限责任公司 | High-temperature dust collection and waste heat utilization device for flue gas of zinc volatilization kiln |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101260322A (en) | Blast furnace gas dust removing device and technique by dry method | |
| CN213221318U (en) | Dust remover for treating potassium chloride drying waste gas | |
| CN108434883A (en) | The pocket type pulsed dust collector that can cool down | |
| CN106178739A (en) | A kind of horizontally loaded type hot precipitator | |
| CN108786301A (en) | The cooling pocket type pulsed dust collector of energy | |
| CN214148874U (en) | Lime kiln flue gas waste heat recovery device | |
| CN201482350U (en) | Pulse-jetting purifying and dust removing system of alkali recovering furnace with multiple black liquor processing capacities | |
| CN211536916U (en) | Cloth bag dust removal device suitable for catching low-temperature high-humidity waste gas of dried material | |
| CN209771611U (en) | Dry type dust removal system | |
| CN114345060A (en) | Full-automatic intelligent dust remover | |
| CN210814344U (en) | Dust remover | |
| CN211987598U (en) | Cloth bag dust removal system | |
| CN215336302U (en) | Heat storage device of heat storage type burner | |
| CN215491140U (en) | Roasting equipment for producing oyster shell powder | |
| CN219848601U (en) | Bag type dust collector bin ash removal control system | |
| CN202186992U (en) | Dust removing device for high-temperature coal gas | |
| CN116294645B (en) | Aluminum melting furnace flue gas treatment device and process | |
| CN101664616B (en) | Alkali recovery boiler pulse spay-blow purifying and dedusting system with various black liquid processing abilities | |
| CN216223361U (en) | Anti-exposure cloth bag dust remover | |
| CN214030866U (en) | Pneumatic ash conveying device with reverse blowing cleaning mechanism | |
| CN212299972U (en) | Flue gas waste heat recovery device with spark capture function | |
| CN217773548U (en) | Bag-type dust collector with anti-condensation device | |
| CN215462668U (en) | Dust removal system for removing water vapor in high-temperature flue gas | |
| CN220276508U (en) | Kiln tail dust collector with filter bag blocking prevention structure | |
| CN219942117U (en) | Novel air inlet structure of bag-type dust collector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |