CN214039295U - Coal gasification coarse slag dewatering and drying device - Google Patents
Coal gasification coarse slag dewatering and drying device Download PDFInfo
- Publication number
- CN214039295U CN214039295U CN202022938078.1U CN202022938078U CN214039295U CN 214039295 U CN214039295 U CN 214039295U CN 202022938078 U CN202022938078 U CN 202022938078U CN 214039295 U CN214039295 U CN 214039295U
- Authority
- CN
- China
- Prior art keywords
- coarse slag
- feeding
- discharge
- rotary cylinder
- discharge valve
- 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
- Drying Of Solid Materials (AREA)
Abstract
The utility model discloses a coal gasification coarse slag dehydration drying device, which belongs to the technical field of coarse slag dehydration drying and is used for performing dehydration drying treatment on coal gasification coarse slag, wherein the coarse slag drying device comprises a feeding and discharging system, a drying system and a dust removal system; the feeding and discharging system comprises a coarse slag bin, a weighing belt feeder and a feeding auger; the drying system comprises a hot-blast stove, a blower and a rotary cylinder dryer; the dust removal system comprises a discharge buffer tank, an induced draft fan, a discharge belt conveyor, a cyclone separator, a bag-type dust remover and an exhaust fan. The utility model provides a coarse sediment dehydration drying device of coal gasification simple process, convenient operation, the energy consumption is low, can be fast effectual with the moisture desorption in the coarse sediment, it is abominable both to have solved the vehicle and drawn sediment site environment, problem that intensity of labour is big has protected the environment simultaneously, makes the rational utilization of resource.
Description
Technical Field
The utility model belongs to the technical field of coarse residue dehydration, especially, relate to a coal gasification coarse residue dehydration device.
Background
The coarse slag generated by the coal gasification furnace in the prior production is directly fished out from the slag settling tank to a slag car through a slag dragging machine. However, this operation results in a large amount of water in the coarse slag, a small proportion of the coarse slag, and the grey water in the coarse slag cannot be disposed of, which directly results in waste of resources. The vehicle draws sediment site environment abominable, and staff intensity of labour is big, and in the transportation, the slag water in the sediment car constantly leaks to the transportation highway, causes very big destruction to the environment.
In order to overcome the defects of the prior art and realize the dehydration and drying of the coal gasification coarse slag, a device with simple process, convenient operation, low energy consumption, low cost and stable operation is needed to be invented.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a coal gasification coarse slag dehydration drying device with simple process, low energy consumption, low cost, improved production environment and good dehydration effect, which comprises a feeding and discharging system, a drying system and a dust removal system which are connected in sequence;
the feeding and discharging system comprises a coarse slag bin, a weighing belt feeder and a feeding auger, wherein a discharge port of the coarse slag bin is connected with a feed port of a discharge valve a, a discharge port of the discharge valve a is connected with a feed port of the weighing belt feeder, and a discharge port of the weighing belt feeder is connected with a feed port of the feeding auger;
the drying system comprises a hot-blast stove, a blower and a rotary cylinder dryer, wherein an air inlet of the hot-blast stove is connected to an air outlet of the blower, a fuel inlet of the hot-blast stove is connected to a fuel feeding pipe, an air outlet of the hot-blast stove is connected to an air inlet of the rotary cylinder dryer, a feeding hole of the rotary cylinder dryer is connected to a discharging hole of a feeding auger, and an outlet of the rotary cylinder dryer is connected to an inlet of a discharging buffer tank;
the dust pelletizing system includes ejection of compact buffer tank, the draught fan, ejection of compact band conveyer, cyclone, the sack cleaner, the exhaust fan, the air intake of draught fan is connected to the air outlet of ejection of compact buffer tank, the import of discharge valve b is connected to the feed opening of ejection of compact buffer tank, the feed inlet of discharge valve b's exit linkage ejection of compact band conveyer, cyclone's air intake is connected to the air outlet of draught fan, the air intake of sack cleaner is connected to cyclone's air outlet, discharge valve c's feed inlet is connected to cyclone's feed opening, band conveyer's feed inlet is connected to discharge valve c's discharge gate, the air intake of exhaust fan is connected to the air outlet of sack cleaner, discharge valve d's feed inlet is connected to the feed opening of sack cleaner, discharge valve d's discharge gate is connected ejection of compact band conveyer's feed inlet, the export of exhaust fan connects to next workshop section.
The air outlet of the hot blast stove is provided with a temperature detection device.
The feed end of the rotary cylinder dryer is a positive pressure area, and the discharge end of the rotary cylinder dryer is a negative pressure area.
As mentioned above, the external walls of the lower parts of the coarse slag bin, the discharge buffer tank, the cyclone separator and the bag-type dust remover are respectively provided with a vibrator a, a vibrator b, a vibrator c and a vibrator d.
Has the advantages that:
1. the utility model discloses a gyration drum is dry, deviates from the water content in the coarse slag by 35% -50% below 15% -20%, and the effectual vehicle of having solved draws the scene of sediment and the transportation in the bad circumstances, problem that staff intensity of labour is big.
2. The utility model discloses process flow is simple, and the energy consumption is lower, and is with low costs, pollutes for a short time, and the operation is stable.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1-coarse slag bin, 2-weighing belt feeder, 3-feeding auger, 4-rotary cylinder dryer, 5-discharging buffer tank, 6-discharge valve b, 7-discharging belt conveyor, 8-induced draft fan, 9-cyclone separator, 10-bag dust collector, 11-exhaust fan, 12-discharge valve c, 13-discharge valve d, 14-air blower, 15-hot blast furnace, 16-discharge valve a, 17-vibrator a, 18-vibrator b, 19-vibrator c, 20-vibrator d, 21-temperature detection device.
Detailed Description
Referring to fig. 1, a coal gasification coarse slag dewatering and drying device comprises a feeding and discharging system, a drying system and a dust removal system which are connected in sequence;
the feeding and discharging system comprises a coarse slag bin 1, a weighing belt feeder 2 and a feeding auger 3, wherein a discharge hole of the coarse slag bin 1 is connected with a feed inlet of a discharge valve a16, a discharge hole of a discharge valve a16 is connected with a feed inlet of the weighing belt feeder 2, and a discharge hole of the weighing belt feeder 2 is connected with a feed inlet of the feeding auger 3; the discharging valve a16 is preferably a star-shaped discharging valve, the upper part of the coarse slag bin 1 is provided with a radar level gauge, the outer wall of the lower part of the coarse slag bin 1 is provided with a vibrator a17, the level of the coarse slag bin 1 is monitored, and the discharging amount is controlled; the weighing belt feeder 2 is provided with an automatic weighing and deviation preventing device, an iron remover, a pull rope switch and the like, and has the functions of reverse unloading, reverse timing and automatic deviation correction; the feeding auger 3 can be remotely controlled through frequency conversion adjustment;
the drying system comprises a hot-blast stove 15, a blower 14 and a rotary cylinder dryer 4, wherein an air inlet of the hot-blast stove 15 is connected to an air outlet of the blower 14, a fuel inlet of the hot-blast stove 15 is connected to a fuel feeding pipe, an air outlet of the hot-blast stove 15 is connected to an air inlet of the rotary cylinder dryer 4, a feeding hole of the rotary cylinder dryer 4 is connected to a discharging hole of a feeding auger 3, and an outlet of the rotary cylinder dryer 4 is connected to an inlet of a discharging buffer tank 5; the hot blast stove 15 is an oil burner and is lined with refractory materials, and comprises a control system, a valve bank, a combustion system and the like, and a temperature detection device 21 is arranged at the outlet of the hot blast stove 15; the blower 14 introduces combustion-supporting air, the combustion-supporting air, fusel oil and waste liquid are combusted in the hot blast stove 15 to generate high-temperature flue gas, and the temperature control range of the flue gas is 800-1000 ℃. The fusel oil mainly comprises methanol, ethanol, propanol, butanol, etc., and the waste liquid mainly comprises methyl formate, dimethoxymethane, methanol, dimethyl carbonate, dimethyl oxalate, etc. The rotary cylinder dryer 4 is a dryer directly heated by hot smoke, a cylinder body of the rotary cylinder dryer 4 adopts a mode of casting a temperature-resistant anticorrosive layer in a carbon steel main material, a casting layer is composed of three layers, the first layer in contact with the cylinder body adopts high-alumina or aluminum silicate fiber to achieve the basic heat insulation effect of the cylinder body, the thickness of the first layer is about 50mm, the second layer adopts high-temperature-resistant heat insulation casting material to effectively block the heat conduction in the cylinder body, the thickness of the second layer is about 80-100mm, the third layer adopts high-temperature-resistant anticorrosive casting material, the casting material not only has good heat insulation effect but also can bear the severe working condition of high corrosion at high temperature, the thickness of the second layer is about 150 plus 180mm, the multilayer casting effectively prevents heat loss, and achieves good heat preservation and corrosion prevention effects, the temperature outside the cylinder body is effectively controlled within 60 ℃ under the working condition of 800 plus 1000 ℃, gyration cylinder dryer 4 has sufficient volume, and inside adopts the equipartition formula spiral plate, and the discharge end is equipped with the overflow weir plate, and the overflow weir plate that the discharge end set up keeps certain filling rate under certain rotational speed and gradient in order to ensure suitable coarse residue dwell time, guarantees that drying process goes on smoothly, and the coarse residue dehydration with water content 35% -50% is below 15% -20%, and the coarse residue of surely moisturizing is discharged after reaching the requirement. The rotary cylinder dryer 4 is used for preventing coarse slag dust and gas leakage, the feeding end of the rotary cylinder dryer is a positive pressure area, the discharging end of the rotary cylinder dryer is a negative pressure area, the feeding end structure of the rotary cylinder dryer 4 adopts a combined sealing form of packing sealing and labyrinth sealing, and the discharging end adopts a fish scale sealing form.
The dust removal system comprises a discharge buffer tank 5, an induced draft fan 8, a discharge belt conveyor 7, a cyclone separator 9, a bag-type dust collector 10 and an exhaust fan 11, wherein the air outlet of the discharge buffer tank 5 is connected with the air inlet of the induced draft fan 8, the feed opening of the discharge buffer tank 5 is connected with the inlet of a discharge valve b, the outlet of the discharge valve b is connected with the feed inlet of the discharge belt conveyor 7, the air outlet of the induced draft fan 8 is connected with the air inlet of the cyclone separator 9, the air outlet of the cyclone separator 9 is connected with the air inlet of the bag-type dust collector 10, the feed opening of the cyclone separator 9 is connected with the feed inlet of a discharge valve c12, the discharge opening of the discharge valve c12 is connected with the feed inlet of the belt conveyor 7, the air outlet of the bag-type dust collector 10 is connected with the air inlet of the exhaust fan 11, the feed opening of the bag-type dust collector 10 is connected with the feed inlet of a discharge valve d13, the discharge opening of the discharge valve d13 is connected with the feed inlet of the discharge belt conveyor 7, the discharge valve d13 is electrically controlled; the outlet of the exhaust fan 11 is connected to the next station. The discharging buffer tank 5 has a cyclone separation function, a vibrator b18 is arranged on the outer wall of the lower part of the discharging buffer tank 5, and a discharge valve b electrically controls the discharging amount of the discharging buffer tank 5; the cyclone separator 9 is used for collecting dust with the diameter of 5-10 microns, and the vibrator c19 is arranged on the outer wall of the lower part of the cyclone separator 9; in actual operation, proper gas velocity should be controlled, the gas velocity is too low, the separation efficiency is not high, the gas velocity is too high, the phenomena of vortex and back mixing are easy to generate seriously, and the separation efficiency is reduced; the bag-type dust collector 10 mainly comprises an upper box body, a middle box body, a lower box body and an ash bucket, wherein the middle box body comprises a pattern plate, a filter bag, cage ribs, a rectangular induction pipe, a low-pressure air bag, a middle box body inspection door, an air inlet pipe, an air outlet pipe and the like, a vibrator d20 is arranged on the outer wall of the lower part of the bag-type dust collector 10, and the ash bucket comprises an ash bucket inspection door, a transmission motor of the ash bucket inspection door, an ash outlet, supporting legs and the like.
The utility model discloses a theory of operation: the gasified coarse slag material with the moisture content of about 35 percent to 50 percent is sent to a feeding auger 3 in a coarse slag bin 1 through a weighing belt feeder 2, the gasified coarse slag is evenly sent into a rotary cylinder dryer 4 through the feeding auger 3, the gasified coarse slag is fully contacted with hot flue gas sent from a hot blast stove 15 in the rotary cylinder dryer 4 and is dried in a parallel flow manner, the moisture in the gasified coarse slag is continuously evaporated, the gasified coarse slag material moves from a feeding hole to an outlet direction of the rotary cylinder dryer 4, the hot flue gas flows from an air inlet to the outlet to form a parallel flow form, when the coal gasification coarse slag flows to the outlet of the rotary cylinder dryer 4, the moisture content is 15% -20%, the dried coal gasification coarse slag flows out from the outlet of the rotary cylinder dryer 4, enters the discharging buffer tank 5, is conveyed to the next working section by the discharging belt conveyor 7, and the evaporated steam and entrained coal gasification coarse slag dust enter the cyclone separator 9 along with hot flue gas.
Hot flue gas required by the rotary cylinder dryer 4 is generated by an air heating furnace 15, fusel oil and waste liquid are combusted by air blown in by the air heating furnace 15 and an air blower 14 to generate hot flue gas required by the rotary cylinder dryer 4, the hot flue gas enters the rotary cylinder dryer 4 and then flows out from the front end to the rear end together with dried materials to form a parallel flow form, and finally the hot flue gas, steam, coal gasification coarse slag dust and the like flow out from the outlet of the rotary cylinder dryer 4 and enter a discharge buffer tank 5.
Flue gas, steam and coal gasification coarse slag dust in the discharge buffer tank 5 are sucked to a cyclone separator 9 by a draught fan 8 for primary separation, part of the dust is collected by the cyclone separator 9, the separated dust is deposited to the bottom of the cyclone separator 9 and is discharged by a discharger c12, the dust which is not collected enters a bag-type dust collector 10 for gas-solid separation, the separated dust is deposited to the bottom of the bag-type dust collector 10 and is discharged by a discharge valve d13, and the purified flue gas and steam are discharged by an exhaust fan 11 and enter the next working section for treatment.
While the present invention has been described in detail with reference to the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made to the present invention. Therefore, modifications and improvements can be made without departing from the spirit of the invention and the scope of the claims.
Claims (4)
1. A coal gasification coarse slag dehydration drying device is characterized by comprising a feeding and discharging system, a drying system and a dust removal system which are sequentially connected;
the feeding and discharging system comprises a coarse slag bin, a weighing belt feeder and a feeding auger, wherein a discharge port of the coarse slag bin is connected with a feed port of a discharge valve a, a discharge port of the discharge valve a is connected with a feed port of the weighing belt feeder, and a discharge port of the weighing belt feeder is connected with a feed port of the feeding auger;
the drying system comprises a hot-blast stove, a blower and a rotary cylinder dryer, wherein an air inlet of the hot-blast stove is connected to an air outlet of the blower, a fuel inlet of the hot-blast stove is connected to a fuel feeding pipe, an air outlet of the hot-blast stove is connected to an air inlet of the rotary cylinder dryer, a feeding hole of the rotary cylinder dryer is connected to a discharging hole of a feeding auger, and an outlet of the rotary cylinder dryer is connected to an inlet of a discharging buffer tank;
the dust pelletizing system includes ejection of compact buffer tank, the draught fan, ejection of compact band conveyer, cyclone, the sack cleaner, the exhaust fan, the air intake of draught fan is connected to the air outlet of ejection of compact buffer tank, the import of discharge valve b is connected to the feed opening of ejection of compact buffer tank, the feed inlet of discharge valve b's exit linkage ejection of compact band conveyer, cyclone's air intake is connected to the air outlet of draught fan, the air intake of sack cleaner is connected to cyclone's air outlet, discharge valve c's feed inlet is connected to cyclone's feed opening, band conveyer's feed inlet is connected to discharge valve c's discharge gate, the air intake of exhaust fan is connected to the air outlet of sack cleaner, discharge valve d's feed inlet is connected to the feed opening of sack cleaner, discharge valve d's discharge gate is connected ejection of compact band conveyer's feed inlet, the export of exhaust fan connects to next workshop section.
2. The coal gasification coarse slag dewatering and drying device according to claim 1, characterized in that: and a temperature detection device is arranged at an air outlet of the hot blast stove.
3. The coal gasification coarse slag dewatering and drying device according to claim 1, characterized in that: the feeding end of the rotary cylinder dryer is a positive pressure area, and the discharging end of the rotary cylinder dryer is a negative pressure area.
4. The coal gasification coarse slag dewatering and drying device according to claim 1, characterized in that: and the outer walls of the lower parts of the coarse slag bin, the discharge buffer tank, the cyclone separator and the bag-type dust remover are respectively provided with a vibrator a, a vibrator b, a vibrator c and a vibrator d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022938078.1U CN214039295U (en) | 2020-12-10 | 2020-12-10 | Coal gasification coarse slag dewatering and drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022938078.1U CN214039295U (en) | 2020-12-10 | 2020-12-10 | Coal gasification coarse slag dewatering and drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214039295U true CN214039295U (en) | 2021-08-24 |
Family
ID=77334397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022938078.1U Active CN214039295U (en) | 2020-12-10 | 2020-12-10 | Coal gasification coarse slag dewatering and drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214039295U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325775A (en) * | 2022-08-25 | 2022-11-11 | 天华化工机械及自动化研究设计院有限公司 | Coal gasification fine slag quality improvement recycling system and method thereof |
-
2020
- 2020-12-10 CN CN202022938078.1U patent/CN214039295U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325775A (en) * | 2022-08-25 | 2022-11-11 | 天华化工机械及自动化研究设计院有限公司 | Coal gasification fine slag quality improvement recycling system and method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106122980A (en) | A kind of process system for cement kiln synergic processing hazardous waste | |
| CN102173554B (en) | System for drying and handling sludge with waste gas from cement production | |
| CN104819470A (en) | Biomass solid waste and hazardous waste treatment system | |
| CN214039295U (en) | Coal gasification coarse slag dewatering and drying device | |
| CN105854423B (en) | A kind of collision type separator and biomass comprehensive utilize system | |
| CN108105777B (en) | Small-size continuous type domestic waste incineration disposal system | |
| CN104748508B (en) | Coal slurry drying system | |
| CN208042154U (en) | A kind of device of processing incineration flue gas of household garbage | |
| CN204730209U (en) | A kind of living beings class solid waste and the useless treatment system of danger | |
| CN111500322A (en) | Biomass thermal cracking water-cooling carbon-gas co-production gasification system | |
| CN208475335U (en) | A kind of grate-type refuse gasification device with inherent filtration function | |
| CN110436740A (en) | A kind of sludge classification desiccation gasification coupling coal generating system and its process | |
| CN208139284U (en) | A kind of negative-pressure cyclic accumulation of heat recovery system handling high-moisture percentage oily sludge | |
| CN105485691B (en) | Suspension combustion carbonization cracking equipment integrating | |
| CN212051076U (en) | System for utilize steam waste heat mummification mud and granulation incineration disposal | |
| CN209355260U (en) | A kind of residents in rural community pyrolysis incineration device improving treatment effeciency | |
| CN208764935U (en) | Garbage pre-heating desiccation apparatus | |
| CN103436293B (en) | Multifunctional sludge gasification and combustion device | |
| CN207231245U (en) | Fluidized bed furnace cooling collection slag system | |
| CN206901791U (en) | A kind of cement produced with the dry method pre-heating system suspension combustion carbide slag reduction-oxidation calcium device | |
| CN110822434A (en) | Pretreatment system for energy treatment of household garbage | |
| CN205897157U (en) | A process systems that is used for cement kiln to deal with in coordination hazardous waste | |
| CN205838828U (en) | Vertical mobile bed drying system | |
| CN213630467U (en) | Device for cleaning wall-mounted carbon black of high-temperature air preheater | |
| CN209307193U (en) | Greasy filth pretreatment system high temperature dehydration mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |