CN112717613A - Flue gas enhanced water washing pretreatment device for reducing ash and improving quality of fire coal and use method - Google Patents
Flue gas enhanced water washing pretreatment device for reducing ash and improving quality of fire coal and use method Download PDFInfo
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- CN112717613A CN112717613A CN202011590648.0A CN202011590648A CN112717613A CN 112717613 A CN112717613 A CN 112717613A CN 202011590648 A CN202011590648 A CN 202011590648A CN 112717613 A CN112717613 A CN 112717613A
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Abstract
The invention discloses a smoke reinforced water washing pretreatment device for reducing ash and improving quality of fire coal and a using method thereof, the smoke reinforced water washing pretreatment device comprises a water washing tank, one end of the water washing tank is provided with a pretreatment tank, the middle part of the top end of the pretreatment tank is welded with an air inlet pipe, two sides of the top and the bottom of the pretreatment tank are both provided with electric telescopic rods, one end of each electric telescopic rod is provided with a sealing plate, a filter tank is arranged on each sealing plate, and a second filter plate is arranged inside the filter tank. And the water can be filtered, recycled and reused, so that energy is saved.
Description
Technical Field
The invention relates to the field of clean combustion utilization of fire coal, in particular to a flue gas enhanced water washing pretreatment device for ash reduction and quality improvement of the fire coal and a using method thereof.
Background
Coal is used as the fossil energy with the largest reserve in China, and provides great energy support for the economic and social development of China for a long time. According to data published in 'Chinese statistics yearbook 2019', the total energy consumption of China is increased from 155547 ten thousand tons of standard coal to 464000 ten thousand tons of standard coal from 2001 to 2018. Coal consumption accounts for more than 50% of the total energy consumption, wherein the generated energy of the coal-fired power plant in 2019 exceeds 4.56 trillion kilowatts, 63.9% of the total power generation in 2016 in China and 50.2% of the total power generation in the world. China is vast in breadth, mineral resources are abundant, and 13 hundred million-ton coal energy bases are mainly distributed in the middle and western regions. Taking the area of Xinjiang as an example, the coal has the detected reserve of about 2.2 trillion tons at present, wherein the eastern Junggar coal field is the region with the most enriched resources in four coal bases of Xinjiang, the predicted reserve accounts for 17% -18% of the reserve of the whole Xinjiang, and the Xinjiang coal field is the largest whole coal field in the world so far. However, under the influence of multiple factors such as the coal-forming period and the coal-forming environment, the content of alkali metal oxide is generally higher than that of other coal types, and slagging and contamination of the wall surface of the boiler are easily caused in the combustion and utilization process.
The existing technology for inhibiting slagging contamination of coal-fired boilers mainly comprises modes of raw coal deashing pretreatment, coal blending combustion, heating surface modification and the like, wherein the raw coal deashing pretreatment is relatively simple and can change the slagging contamination characteristic of fuels from the source. The traditional raw coal deliming pretreatment relies on coal washing equipment to soak and wash raw coal, so that the grading optimization of coal quality can be realized on one hand, and a certain deliming effect can be realized on the other hand. But current washing technical function is single, and the gas velocity of flow is fast, and the deliming effect is poor, can not reach the effect of energy-conserving deliming moreover, can not clear up adnexed dust in the rose box fast moreover, can not reach emission standard and discharge, causes serious influence to the environment.
Disclosure of Invention
The invention aims to provide a flue gas reinforced water washing pretreatment device for reducing ash and improving quality of fire coal and a using method thereof aiming at the defects of the prior art so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a flue gas reinforced water washing pretreatment device for ash reduction and quality improvement of fire coal comprises a washing tank, wherein one end of the washing tank is provided with a pretreatment tank, an air inlet pipe is welded in the middle of the top end of the pretreatment tank, electric telescopic rods are installed on the top and the bottom of the pretreatment tank, a sealing plate is installed at one end of each electric telescopic rod, a filter tank is installed on each sealing plate, a second filter plate is installed inside the filter tank, a first washing tank, a second washing tank and a third washing tank are arranged inside the washing tank, the second washing tank is separated from the first washing tank and the third washing tank through air guide plates, the first filter plate is installed inside the first washing tank, the second washing tank and the third washing tank, first water spray plates are installed on the two sides of each air guide plate, and second water spray plates are installed on the tops of the first washing tank, the second washing tank and the third washing tank, the top of washing case is installed centrifugal pump, the last raceway that is connected with of centrifugal pump, the bottom of washing case is connected with the blow off pipe, the one end of blow off pipe is connected with the water tank, the internally mounted of water tank has the filter screen, the flue gas detection case is installed at the top of water tank, the chimney is installed at the top of flue gas detection case, install display and switch on the water tank.
As a preferred technical solution of the present invention, the electric telescopic rod is installed on both sides of the top and the bottom of the pretreatment tank by bolts, the sealing plate is installed on one end of the electric telescopic rod by bolts, the filter tank is installed on one side of the sealing plate by bolts, and the sealing plate is fixedly connected to the pretreatment tank by a sealing gasket.
As a preferable technical scheme of the present invention, the rinsing tank is connected to the pretreatment tank through a connection pipe, the air guide plate is installed on the inside of the rinsing tank through bolts, the first water spray plate is installed on both sides of the air guide plate through bolts, and the first filter plate is installed on the inside of the first rinsing tank, the second rinsing tank, and the third rinsing tank through bolts.
As a preferable technical scheme of the invention, the rinsing tank and the pretreatment tank are both mounted on the top of the support base through bolts, and the first rinsing tank, the second rinsing tank and the third rinsing tank are all connected with the water tank through drain pipes.
As a preferred technical scheme of the invention, the centrifugal water pump is respectively connected with the water tank, the first water spraying plate and the second water spraying plate through water conveying pipes, the centrifugal water pump is installed on the top of the water washing tank through bolts, and electromagnetic valves are installed at the connection parts of the first water spraying plate and the second water spraying plate and the water conveying pipes.
As a preferable technical scheme of the invention, the smoke detection box is installed on the top of the water tank through a bolt, the smoke detection box is connected with the top of the third rinsing bath through a connecting pipe, a dust sensor is installed in the smoke detection box, and the dust sensor is connected with a display through a controller.
As a preferred technical scheme of the invention, the power switch is respectively and electrically connected with the smoke detection box, the centrifugal water pump, the electric telescopic rod and the display.
A method for using a flue gas reinforced water washing pretreatment device for reducing ash and improving quality of fire coal comprises the following specific steps;
the method comprises the following steps: the flue gas enters the pretreatment box through the air inlet pipe, and is subjected to primary filtration treatment through a second filter plate in the filter box in the pretreatment box;
step two: then the flue gas enters a first washing tank through a connecting pipe, the centrifugal water pump is switched on to brake by switching on a power supply of the centrifugal water pump, so that water in the water tank is sucked onto the first water spraying plate and the second water spraying plate, and the flue gas is sprayed by the first water spraying plate and the second water spraying plate;
step three: then the flue gas is sprayed through a second rinsing bath and a third rinsing bath, and finally the flue gas is discharged through a chimney after being detected to be qualified through a flue gas detection box, and the waste water generated by spraying is conveyed into a water tank through a blow-off pipe to be filtered;
step four: the dust sensor in the smoke detection box senses the washing quality, so that the controller controls the opening or closing of electromagnetic valves on the first water spray plate and the second water spray plate in the first water wash tank, the second water wash tank and the third water wash tank, and the aim of saving energy is fulfilled;
step five: when the dust in the rose box needs to be cleaned up, the power of the electric telescopic rod is directly switched on through the power switch, so that the electric telescopic rod is braked to stretch out the rose box from the pretreatment box, and the cleaning is convenient.
The invention has the beneficial effects that: the device can remove dust the preliminary treatment to the flue gas, can carry out filtration treatment with large-scale impurity, and the preliminary treatment can be cleared up the dust in the filtration equipment fast, can not produce the phenomenon of jam, can also wash the flue gas after the preliminary treatment, improve and discharge flue gas quality, can let the inside of wash bowl be full of steam, let the flue gas fully contact with steam, thereby dissolve some impurity, and install a plurality of filter screen in the wash bowl, can wash the flue gas in filterable, improve purifying effect, and still detect the flue gas, open different wash bowl work according to emission standard, can also filter the recovery to water and recycle, energy saving, the people of being convenient for operate and use.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. washing case, 2, pretreatment tank, 3, support base, 4, first washing tank, 5, second washing tank, 6, third washing tank, 7, air guide plate, 8, first filter, 9, water tank, 10, flue gas detection case, 11, chimney, 12, centrifugal water pump, 13, intake pipe, 14, electric telescopic handle, 15, rose box, 16, second filter, 17, sealed pad, 18, closing plate, 19, blow off pipe, 20, first spray plate, 21, second spray plate, 22, raceway, 23, display, 24, switch.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention more readily understood by those skilled in the art, and thus will more clearly and distinctly define the scope of the invention.
Example (b): referring to fig. 1, the present invention provides a technical solution: a flue gas reinforced water washing pretreatment device for reducing ash and improving quality of fire coal comprises a washing tank 1, one end of the washing tank 1 is provided with a pretreatment tank 2, an air inlet pipe 13 is welded in the middle of the top end of the pretreatment tank 2, electric telescopic rods 14 are arranged on the top and the bottom of the pretreatment tank 2, one end of each electric telescopic rod 14 is provided with a sealing plate 18, a filter tank 15 is arranged on each sealing plate 18, a second filter plate 16 is arranged inside the filter tank 15, a first washing tank 4, a second washing tank 5 and a third washing tank 6 are arranged inside the washing tank 1, the second washing tank 5 is separated from the first washing tank 4 and the third washing tank 6 through an air guide plate 7, the first filter plate 8 is arranged inside each of the first washing tank 4, the second washing tank 5 and the third washing tank 6, first water spray plates 20 are arranged on the two sides of the air guide plate 7, and second water spray plates 21 are arranged on the top of each of the first washing tank 4, the second washing tank 5 and the third washing tank 6, centrifugal pump 12 is installed at the top of washing case 1, is connected with raceway 22 on the centrifugal pump 12, and the bottom of washing case 1 is connected with blow off pipe 19, and the one end of blow off pipe 19 is connected with water tank 9, and the internally mounted of water tank 9 has the filter screen, and flue gas detection case 10 is installed at the top of water tank 9, and chimney 11 is installed at the top of flue gas detection case 10, installs display 23 and switch 24 on the water tank 9.
Electric telescopic handle 14 passes through the bolt and installs on the top of preliminary treatment case 2 and bottom both sides, and the closing plate 18 passes through the bolt and installs on one end of electric telescopic handle 14, and rose box 15 passes through the bolt and installs on one side of closing plate 18, and closing plate 18 links to each other with preliminary treatment case 2 is fixed through sealed pad 17.
Washing case 1 passes through the connecting pipe and links to each other with pretreatment tank 2, and air deflector 7 passes through the bolt and installs on washing case 1's inside, and first water spray plate 20 passes through the bolt and installs on air deflector 7's both sides, and first filter 8 passes through the bolt and installs on first wash bowl 4, second wash bowl 5 and third wash bowl 6's inside.
The rinsing tank 1 and the pretreatment tank 2 are both mounted on the top of the support base 3 through bolts, and the first rinsing bath 4, the second rinsing bath 5 and the third rinsing bath 6 are all connected with the water tank 9 through a drain pipe 19.
The centrifugal water pump 12 is respectively connected with the water tank 9, the first water spraying plate 20 and the second water spraying plate 21 through a water conveying pipe 22, the centrifugal water pump 12 is installed on the top of the washing tank 1 through bolts, and electromagnetic valves are installed at the connection positions of the first water spraying plate 20 and the second water spraying plate 21 and the water conveying pipe 22.
The flue gas detection box 10 is installed on the top of the water tank 9 through a bolt, the flue gas detection box 10 is connected with the top of the third rinsing bath 6 through a connecting pipe, a dust sensor is installed inside the flue gas detection box 10, and the dust sensor is connected with the display 23 through a controller.
The power switch 24 is electrically connected with the smoke detection box 10, the centrifugal water pump 12, the electric telescopic rod 14 and the display 23 respectively.
A method for using a flue gas reinforced water washing pretreatment device for reducing ash and improving quality of fire coal comprises the following specific steps;
the method comprises the following steps: the flue gas enters the pretreatment tank 2 through the air inlet pipe 13, and is subjected to primary filtration treatment through a second filter plate 16 in a filter tank 15 in the pretreatment tank 2;
step two: then the flue gas enters the first rinsing bath 4 through the connecting pipe, the centrifugal water pump 12 is switched on to brake by switching on the power supply of the centrifugal water pump 12, so that the water in the water tank 9 is sucked onto the first water spraying plate 20 and the second water spraying plate 21, and the flue gas is sprayed by the first water spraying plate 20 and the second water spraying plate 21;
step three: then the flue gas is sprayed through a second rinsing bath 5 and a third rinsing bath 6, and finally the flue gas is discharged through a chimney 11 after being detected to be qualified through a flue gas detection box 10, and the waste water generated by spraying is filtered in a water tank 9 through a drain pipe 19;
step four: the dust sensor in the smoke detection box 10 senses the washing quality, so that the controller controls the opening or closing of the electromagnetic valves on the first water spray plate 20 and the second water spray plate 21 in the first washing tank 4, the second washing tank 5 and the third washing tank 6, thereby achieving the purpose of energy conservation;
step five: when the dust in the filter box 15 needs to be cleaned, the power switch 24 is directly connected with the power supply of the electric telescopic rod 14, so that the electric telescopic rod 14 is braked to stretch out the filter box 15 from the pretreatment box 2, and the cleaning is convenient.
The working principle is as follows: a flue gas reinforced water washing pretreatment device for reducing ash and improving quality of fire coal and a using method thereof comprise a washing tank 1, a pretreatment tank 2, a supporting base 3, a first washing tank 4, a second washing tank 5, a third washing tank 6, an air guide plate 7, a first filter plate 8, a water tank 9, a flue gas detection tank 10, a chimney 11, a centrifugal water pump 12, an air inlet pipe 13, an electric telescopic rod 14, a filter tank 15, a second filter plate 16, a sealing gasket 17, a sealing plate 18, a blow-off pipe 19, a first water spray plate 20, a second water spray plate 21, a water delivery pipe 22, a display 23 and a power switch 24. The flue gas enters the pretreatment tank 2 through the air inlet pipe 13, and is subjected to primary filtration treatment through a second filter plate 16 in a filter tank 15 in the pretreatment tank 2; then the flue gas enters the first rinsing bath 4 through the connecting pipe, the centrifugal water pump 12 is switched on to brake by switching on the power supply of the centrifugal water pump 12, so that the water in the water tank 9 is sucked onto the first water spraying plate 20 and the second water spraying plate 21, and the flue gas is sprayed by the first water spraying plate 20 and the second water spraying plate 21; then the flue gas is sprayed through a second rinsing bath 5 and a third rinsing bath 6, and finally the flue gas is discharged through a chimney 11 after being detected to be qualified through a flue gas detection box 10, and the waste water generated by spraying is filtered in a water tank 9 through a drain pipe 19; the dust sensor in the smoke detection box 10 senses the washing quality, so that the controller controls the opening or closing of the electromagnetic valves on the first water spray plate 20 and the second water spray plate 21 in the first washing tank 4, the second washing tank 5 and the third washing tank 6, thereby achieving the purpose of energy conservation; when the dust in the filter box 15 needs to be cleaned, the power switch 24 is directly connected with the power supply of the electric telescopic rod 14, so that the electric telescopic rod 14 is braked to stretch out the filter box 15 from the pretreatment box 2, and the cleaning is convenient.
The device can remove dust the preliminary treatment to the flue gas, can carry out filtration treatment with large-scale impurity, and the preliminary treatment can be cleared up the dust in the filtration equipment fast, can not produce the phenomenon of jam, can also wash the flue gas after the preliminary treatment, improve and discharge flue gas quality, can let the inside of wash bowl be full of steam, let the flue gas fully contact with steam, thereby dissolve some impurity, and install a plurality of filter screen in the wash bowl, can wash the flue gas in filterable, improve purifying effect, and still detect the flue gas, open different wash bowl work according to emission standard, can also filter the recovery to water and recycle, energy saving, the people of being convenient for operate and use.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. The utility model provides a flue gas of coal ash reduction upgrading reinforces washing preprocessing device, includes washing case (1), its characterized in that: one end of the rinsing tank (1) is provided with a pretreatment tank (2), an air inlet pipe (13) is welded at the middle of the top end of the pretreatment tank (2), electric telescopic rods (14) are installed on the two sides of the top and the bottom of the pretreatment tank (2), a sealing plate (18) is installed at one end of each electric telescopic rod (14), a filtering tank (15) is installed on each sealing plate (18), a second filtering plate (16) is installed inside each filtering tank (15), a first rinsing tank (4), a second rinsing tank (5) and a third rinsing tank (6) are arranged inside the rinsing tank (1), the second rinsing tank (5) is separated from the first rinsing tank (4) and the third rinsing tank (6) through air guide plates (7), and first filtering plates (8) are installed inside the first rinsing tank (4), the second rinsing tank (5) and the third rinsing tank (6), first water spray plate (20) are all installed to the both sides of air guide plate (7), second water spray plate (21) are all installed at the top of first wash bowl (4), second wash bowl (5) and third wash bowl (6), centrifugal pump (12) are installed at the top of wash tank (1), be connected with raceway (22) on centrifugal pump (12), the bottom of wash tank (1) is connected with blow off pipe (19), the one end of blow off pipe (19) is connected with water tank (9), the internally mounted of water tank (9) has the filter screen, flue gas detection case (10) are installed at the top of water tank (9), chimney (11) are installed at the top of flue gas detection case (10), install display (23) and switch (24) on water tank (9).
2. The coal-fired ash-reducing quality-improving flue gas enhanced water washing pretreatment device according to claim 1, characterized in that: electric telescopic handle (14) pass through the bolt and install on the top and the bottom both sides of preliminary treatment case (2), closing plate (18) pass through the bolt and install on one end of electric telescopic handle (14), rose box (15) pass through the bolt and install on one side of closing plate (18), closing plate (18) are through sealed pad (17) and preliminary treatment case (2) fixed the linking to each other.
3. The coal-fired ash-reducing quality-improving flue gas enhanced water washing pretreatment device according to claim 1, characterized in that: the washing tank (1) is connected with the pretreatment tank (2) through a connecting pipe, the air guide plate (7) is installed on the inner portion of the washing tank (1) through bolts, the first water spraying plates (20) are installed on two sides of the air guide plate (7) through bolts, and the first filter plate (8) is installed on the inner portions of the first washing tank (4), the second washing tank (5) and the third washing tank (6) through bolts.
4. The coal-fired ash-reducing quality-improving flue gas enhanced water washing pretreatment device according to claim 1, characterized in that: the washing tank (1) and the pretreatment tank (2) are both mounted on the top of the support base (3) through bolts, and the first washing tank (4), the second washing tank (5) and the third washing tank (6) are all connected with the water tank (9) through drain pipes (19).
5. The coal-fired ash-reducing quality-improving flue gas enhanced water washing pretreatment device according to claim 1, characterized in that: centrifugal pump (12) link to each other with water tank (9), first water spray plate (20) and second water spray plate (21) respectively through raceway (22), centrifugal pump (12) pass through the bolt and install on the top of washing case (1), the solenoid valve is installed with the junction of raceway (22) in first water spray plate (20) and second water spray plate (21).
6. The coal-fired ash-reducing quality-improving flue gas enhanced water washing pretreatment device according to claim 1, characterized in that: the flue gas detection box (10) is installed on the top of the water tank (9) through bolts, the flue gas detection box (10) is connected with the top of the third rinsing bath (6) through a connecting pipe, a dust sensor is installed inside the flue gas detection box (10), and the dust sensor is connected with the display (23) through a controller.
7. The coal-fired ash-reducing quality-improving flue gas enhanced water washing pretreatment device according to claim 1, characterized in that: the power switch (24) is electrically connected with the smoke detection box (10), the centrifugal water pump (12), the electric telescopic rod (14) and the display (23) respectively.
8. The use method of the flue gas reinforced water washing pretreatment device for reducing the ash and improving the quality of the fire coal according to any one of claims 1 to 7 is characterized in that: the method comprises the following specific steps;
the method comprises the following steps: the flue gas enters the pretreatment box (2) through the air inlet pipe (13), and is primarily filtered through a second filter plate (16) in a filter box (15) in the pretreatment box (2);
step two: then the flue gas enters a first washing tank (4) through a connecting pipe, the centrifugal water pump (12) is switched on to brake by the aid of a power supply of the centrifugal water pump (12), so that water in the water tank (9) is sucked onto a first water spraying plate (20) and a second water spraying plate (21), and the flue gas is sprayed by the aid of the first water spraying plate (20) and the second water spraying plate (21);
step three: then the flue gas is sprayed through a second rinsing bath (5) and a third rinsing bath (6), and finally the flue gas is discharged through a chimney (11) after being detected to be qualified through a flue gas detection box (10), and the waste water generated by spraying is conveyed into a water tank (9) through a drain pipe (19) to be filtered;
step four: the dust sensor in the smoke detection box (10) senses the washing quality, so that the controller controls the opening or closing of electromagnetic valves on a first water spray plate (20) and a second water spray plate (21) in a first washing tank (4), a second washing tank (5) and a third washing tank (6), and the aim of saving energy is fulfilled;
step five: when the dust in the filter box (15) needs to be cleaned, the power supply of the electric telescopic rod (14) is directly connected through the power switch (24), so that the electric telescopic rod (14) is braked to stretch out the filter box (15) from the pretreatment box (2), and the cleaning is convenient.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011590648.0A CN112717613A (en) | 2020-12-29 | 2020-12-29 | Flue gas enhanced water washing pretreatment device for reducing ash and improving quality of fire coal and use method |
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| CN202011590648.0A CN112717613A (en) | 2020-12-29 | 2020-12-29 | Flue gas enhanced water washing pretreatment device for reducing ash and improving quality of fire coal and use method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5427610A (en) * | 1994-05-27 | 1995-06-27 | Nec Electronics, Inc. | Photoresist solvent fume exhaust scrubber |
| US20020108497A1 (en) * | 2001-02-09 | 2002-08-15 | Broad Ocean Company Limited | Air-cleaning apparatus |
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Application publication date: 20210430 |
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