CN104117242A - A treatment device for wood chip washing waste water and exhaust - Google Patents
A treatment device for wood chip washing waste water and exhaust Download PDFInfo
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- CN104117242A CN104117242A CN201410328455.6A CN201410328455A CN104117242A CN 104117242 A CN104117242 A CN 104117242A CN 201410328455 A CN201410328455 A CN 201410328455A CN 104117242 A CN104117242 A CN 104117242A
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- spraying mechanism
- detention tank
- sewage
- chip
- processing device
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Abstract
A treatment device for wood chip washing waste water and exhaust is provided. The treatment device comprises a wood chip washing machine, a collecting tank, at least one drying cyclone separator, a chimney, an induced draft fan, a first waste water sedimentation basin, and a second waste water sedimentation basin. A first spraying mechanism and a second spraying mechanism are disposed in the chimney. The bottom of the chimney is provided with a waste water buffer tank. The first waste water sedimentation basin is connected to the water outlet of the waste water buffer tank through a slag-removing unit. The second waste water sedimentation basin is communicated with the first waste water sedimentation basin, and is connected to the water inlet of the wood chip washing machine through a main pipeline. The main pipeline is provided with a circulating water pump. The second spraying mechanism is connected to the main pipeline through a second branch pipeline. The second branch pipeline is disposed between the circulating water pump and the wood chip washing machine. The treatment device can treat exhaust generated by the drying cyclone separator, and achieves reutilization of the waste water generated by washing wood chips, thus avoiding waste of the water resource.
Description
[technical field]
The present invention relates to a kind of apparatus of medium density fibre board (MDF) manufacture field, relate in particular to a kind of chip washing sewage and flue gas processing device.
[background technology]
Medium density fibre board (MDF) industry is comprehensive utilization of resources industry, is again Resource Dependence type industry, or the relatively high industry of energy resource consumption.Medium density fibre board (MDF) density is 650-800 kilogram/cubic metre, high-density plate density >=880 kilogram/cubic metre, low density fiberboard density is 450-650 kilogram/cubic metre, and it is mainly used in building interior finishing, floor base material, Furniture manufacture, car and boat finishing, Household electric appliance casing manufacture and carves various technique reliefs etc.
Medium density fibre board (MDF) is that to take artificial fast-growing small dimension wood, brush wood, logging residue and industrial wood waste be primary raw material, the sheet material that adopts dry method or wet process technique to produce, this production technology comprises following workshop section: preparation workshop section, fiber are prepared workshop section, matforming and hot pressing section and finished product processing workshop section; Wherein, preparation workshop section comprises that the operations such as raw material is stored up, chipped, screening, Chip treatment form; Fiber is prepared workshop section and is comprised defibrator process, impregnation, applying glue, the operation such as dry.
At present, Chip treatment operation comprises conventionally cleans and warm-up operation, and cleaning is mainly divided into washing and wind is washed two kinds, washing advantage be can be cleaner cleaning wood chip, make relatively uniformity of wood chip moisture content after cleaning simultaneously, be conducive to subsequent production and control, product quality is better; When cleaning, select washing and time can produce a large amount of washing sewage, not only contaminated environment but also cause water resource waste.
In addition, the fiber of fibreboard production line is prepared the dry one-level that conventionally adopts of workshop section and is dodged anxious formula drying machine, comprises drying air fan, drying duct, expansion joint, safety anti-explosive dish, discharging revolving valve, a 1-2 dry cyclone separator means.Dodging anxious formula drying machine major function is exactly that wet wood-fibred (85%-90% moisture content) flash baking of executing glue is only had to the dry fiber of 8 &-15% to moisture content, is beneficial to the follow-up matforming and hot pressing section of mating formation and uses; Wherein dry cyclone separator tail gas outlet temperature is 50 ℃-75 ℃, the granular material discharged concentration 50mg-175mg/m of tail gas
3, formaldehyde emissions concentration 5mg-15mg/m
3, Yan channel black Du≤1, Shuai≤0.1kg/m of Han Shui
3, and air quantity is larger, reaches 100,000-700,000 Nm
3/ h, the about 3500-5000Pa of pressure, wind speed is at 8 meter per second-25 meter per seconds; And the tail gas that present stage produces at the dry cyclone separator of fiberboard industry is all directly to fall to airborne release, thereby the air in environment is polluted.
[summary of the invention]
Technical problem to be solved by this invention is to provide a kind of chip washing sewage and flue gas processing device, not only can process the tail gas that dry cyclone separator produces, and realized the sewage that washing wood chip is produced simultaneously and recycled, thereby avoided the waste of water resource.
The present invention solves the problems of the technologies described above by the following technical programs: a kind of chip washing sewage and flue gas processing device, comprise that a chip washer, is for collecting the feeder of washing sewage, the outlet of sewer of described chip washer is communicated with the water inlet of feeder, the delivery port of described feeder is connected a drainage sieve, and this drainage sieve below is provided with a drip pan, this treating apparatus also comprises at least one dry cyclone separator, one is provided with the chimney of an air inlet, one air-introduced machine, one first detention tank and one second detention tank, described air-introduced machine is connected with the exhaust outlet of dry cyclone separator by an induced duct, this air-introduced machine is connected with the air inlet of chimney by a discharge pipe, in described chimney, be provided with first spraying mechanism spraying and the second spraying mechanism of a upward spraying downwards, and the bottom of this chimney is provided with a sewage dashpot, described sewage dashpot is positioned at the below of air inlet, described the first spraying mechanism is positioned at the top of chimney, described the second spraying mechanism is between the first spraying mechanism and air inlet, described the first spraying mechanism is connected by one first branch pipe(tube) with drip pan, described the first detention tank is connected by a slag removal unit with the delivery port of sewage dashpot, described the second detention tank is communicated with the first detention tank, described the second detention tank is connected with the water inlet of chip washer by a main pipeline, described main pipeline is provided with a water circulating pump, described the second spraying mechanism is connected with main pipeline by one second branch pipe(tube), described the second branch pipe(tube) is between water circulating pump and chip washer, and be equipped with a valve on described the first branch pipe(tube) and the second branch pipe(tube).
Further, described slag removal unit comprises a mesh screen transporter, a clay extruded mechanism, a waste residue collecting box and a splash-guard ring, mesh screen conveyer be positioned at the first detention tank directly over, this mesh screen conveyer is connected with the delivery port of sewage dashpot by an aqueduct, described splash-guard ring is located between mesh screen transporter and sewage dashpot, the end of described aqueduct extends in splash-guard ring, described clay extruded mechanism is installed in splash-guard ring, and waste residue collecting box is installed on the outlet end below of mesh screen conveyer.
In described discharge pipe, be provided with all one the 3rd spraying mechanism and one the 4th spraying mechanism of spray downwards, described the 3rd spraying mechanism is connected with drip pan by establishing valvular the 3rd branch pipe(tube) on one, and described the 4th spraying mechanism is connected with the first branch pipe(tube); And described discharge pipe is obliquely installed, the angle of inclination of this discharge pipe is α, 90 ° of 0 ° of < α <.
Further, described the second detention tank is communicated with by a connected entrance with the first detention tank.
Further, in described the first detention tank, be provided with one first dredge pump, and this first dredge pump is connected with one first slag remover.
Further, in described the second detention tank, be provided with one second dredge pump, and this second dredge pump is connected with one second slag remover.
Further, described the first slag remover is vertical slag remover.
Further, described the second slag remover is horizontal slag remover.
Further, the delivery port of described sewage dashpot is positioned at the bottom of this sewage dashpot.
The beneficial effect of a kind of chip washing sewage of the present invention and flue gas processing device is: by the structural design of whole device, can be when processing the tail gas of dry cyclone separator generation, also having realized the sewage that washing wood chip is produced recycles, thereby avoided the waste of water resource, in addition, this device also has compact conformation, takes up an area less feature.
[accompanying drawing explanation]
The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the schematic diagram of a kind of chip washing sewage of the present invention and flue gas processing device.
[specific embodiment]
Refer to Fig. 1, a kind of chip washing sewage of the present invention and flue gas processing device, comprise that a chip washer 1, is for collecting the feeder 2 of washing sewage, the chimney 4 that at least one dry cyclone separator 3, is provided with an air inlet 41 (tail gas producing in order to discharge dry cyclone separator 3), an air-introduced machine 5, one first detention tank 61 and one second detention tank 62;
The outlet of sewer 11 of described chip washer 1 is communicated with the water inlet 21 of feeder 2, and the delivery port of described feeder 2 22 is connected a drainages sieve 23, and this drainage sieves 23 belows and is provided with a drip pan 24, described air-introduced machine 5 is connected with the exhaust outlet 31 of dry cyclone separator 3 by an induced duct 51, this air-introduced machine 5 is connected with the air inlet 401 of chimney 4 by a discharge pipe 52, in described chimney 4, be provided with first spraying mechanism 41 spraying and the second spraying mechanism 42 of a upward spraying downwards, and the bottom of this chimney 4 is provided with a sewage dashpot 43, described sewage dashpot 43 is positioned at the below of air inlet 401, described the first spraying mechanism 41 is positioned at the top of chimney 4, described the second spraying mechanism 42 is between the first spraying mechanism 41 and air inlet 401, described the first spraying mechanism 41 is connected by one first branch pipe(tube) 71 with drip pan 24, described the first detention tank 61 is connected by a slag removal unit 8 with the delivery port 431 of sewage dashpot 43, described the second detention tank 62 is communicated with the first detention tank 61, described the second detention tank 62 is connected with the water inlet 12 of chip washer 1 by a main pipeline 72, described main pipeline 72 is provided with a water circulating pump 73, described the second spraying mechanism 42 is connected with main pipeline 72 by one second branch pipe(tube) 74, described the second branch pipe(tube) 74 is between water circulating pump 73 and chip washer 1, and on described the first branch pipe(tube) 71 and the second branch pipe(tube) 74, be equipped with a valve and (be respectively valve 91, valve 92).
Wherein, slag removal unit 8 comprises a mesh screen transporter 81, a clay extruded mechanism 82, a waste residue collecting box 83 and a splash-guard ring 84, mesh screen conveyer 81 be positioned at the first detention tank 61 directly over, this mesh screen conveyer 81 is connected with the delivery port 431 of sewage dashpot 43 by an aqueduct 85, described splash-guard ring 84 is located between mesh screen transporter 81 and sewage dashpot 43, the end of aqueduct 85 extends in splash-guard ring 84, splashes avoiding from the interior water flowing to mesh screen transporter 81 of aqueduct 85; Described clay extruded mechanism 82 is installed in splash-guard ring 84, and it is in order to constantly to beat the mesh bag of mesh screen transporter 81, thereby the body refuse on mesh screen transporter 81 is destroyed, and guarantees mesh bag clean of mesh screen transporter 81; In addition, waste residue collecting box 83 is installed on the outlet end below of this mesh screen conveyer 81, the body refuse that it separates for receiving mesh screen transporter 81.
In discharge pipe 52, be provided with one the 3rd spraying mechanism 43 and one the 4th spraying mechanism 44 that all spray downwards, described the 3rd spraying mechanism 43 is connected with drip pan 24 by the 3rd branch pipe(tube) 75 that is provided with valve 93, described the 4th spraying mechanism 44 is connected with the second branch pipe(tube) 74, the 3rd spraying mechanism 43 coordinates with the 4th spraying mechanism 44, fibre dust tail gas in air-introduced machine 5 enters discharge pipe 52 can be removed, and tail gas is carried out to preliminary cooling down; Discharge pipe 52 is obliquely installed, the angle of inclination of this discharge pipe 52 is α, 90 ° of 0 ° of < α <, being obliquely installed of discharge pipe 52 can avoid the aqueous reflux of the 3rd spraying mechanism 43, water that the 4th spraying mechanism 44 sprays and chimney 4 in air-introduced machine 5; In addition, in order to reduce the flow resistance of shower water to tail gas, the shower nozzle of the 4th spraying mechanism 44 and the second spraying mechanism 42 is all obliquely installed along exhaust gas flow direction.
The two is communicated with the second detention tank 62 and the first detention tank 61 by a connected entrance 63; The delivery port 431 of sewage dashpot 43 is positioned at the bottom of this sewage dashpot 43; In the first detention tank 61, be provided with one first dredge pump 611, and this first dredge pump 611 is connected with one first slag remover 612; In the second detention tank 62, be provided with one second dredge pump 621, and this second dredge pump 621 is connected with one second slag remover 622; The sewage that flows into the first detention tank 61 constantly carries out preliminary sedimentation, the mud settling down by the first dredge pump 611 enter connection first slag remover 612 is interior that body refuse is discharged; And through connected entrance 63, flow into the interior secondary settlement that constantly carries out of the second mudpan 62 via the sewage after the preliminary sedimentation of the first mudpan 61, to obtain recycling recirculated water, and the mud settling down in the second mudpan 62 by the second dredge pump 621 enter connection second slag remover 622 is interior that body refuse is discharged; Wherein, the first slag remover 612 can be selected vertical slag remover, and the second slag remover 622 can be selected horizontal slag remover.
It should be noted that, valve 91 is spray flows of controlling the first spraying mechanism 41, and valve 92 is the spray flows in order to Synchronization Control the second spraying mechanism 42 and the 4th spraying mechanism 44, and valve 93 is spray flows of controlling the 3rd spraying mechanism 43.
During operation of the present invention: the sewage that chip washer 1 produces flows in feeder 2 via outlet of sewer 11 and water inlet 21 successively, sewage in feeder 2 is delivered to the drainage sieve 3 bulky grain thing impurity that filter to remove in sewage via delivery port 22 afterwards, and the sewage after drainage sieve 3 filters falls into the spray water source that drip pan 24 is used as the first spraying mechanism 43 and the 3rd spraying mechanism 43, the tail gas that dry cyclone separator 3 produces flows out and also enters successively induced duct 51 and discharge pipe 52 from exhaust outlet 31 under the effect of air-introduced machine 5, the tail gas that enters discharge pipe 52 goes down except fibre dust at the 3rd spraying mechanism 43 and the 4th spraying mechanism 44 actings in conjunction, and tail gas is carried out to preliminary cooling down, tail gas enters chimney 4 through the air inlet 401 of chimney 4 afterwards, tail gas is at the interior downward spray of the first spraying mechanism 41 and the upward spraying of the second spraying mechanism 42 of being subject to of chimney 4 simultaneously, tail gas is obtained simultaneously being able to cooling down, the dust that it is contained and particle are removed and substantially along with shower water falls into the sewage dashpot 43 of chimney 4 bottoms, and the shower water that the first spraying mechanism 43 and the 3rd spraying mechanism 43 spray also enters chimney 4 by air inlet 401 and drops down onto in sewage dashpot 43, the tail gas of discharging from chimney 4 tops is afterwards comparatively clean, can not pollute obtaining air in environment, and the sewage that falls into sewage dashpot 43 causes slag removal unit 8 to remove the impurity such as particle of sewage by aqueduct 85 from delivery port 431, sewage after slag removal unit 8 processing afterwards enters successively in the first detention tank 61, the second detention tank 62 and carries out sedimentation processing, the recirculated water that final acquisition can recycle, recirculated water is pumped into main pipeline 72 for chip washer 2, the second spraying mechanism 42 and the 4th spraying mechanism 44 waters by water circulating pump 73 from the second detention tank 62, thereby realized effluent cycle utilization.
To sum up, the present invention is by the structural design of whole device, not only can process the tail gas that dry cyclone separator produces, avoid being disposed to the too high and problem of environmental pollution that causes of the granule contents such as airborne exhaust temperature is too high, dust, collected moisture content in the tail gas that dry cyclone separator produces, heat energy etc. simultaneously; And realized the sewage that washing wood chip is produced and recycled, thereby avoided the waste of water resource, in addition, this device also has compact conformation, takes up an area less feature.
Claims (9)
1. a chip washing sewage and flue gas processing device, comprise that a chip washer, is for collecting the feeder of washing sewage, the outlet of sewer of described chip washer is communicated with the water inlet of feeder, the delivery port of described feeder is connected a drainage sieve, and this drainage sieve below is provided with a drip pan, it is characterized in that: this treating apparatus also comprises at least one dry cyclone separator, one is provided with the chimney of an air inlet, one air-introduced machine, one first detention tank and one second detention tank, described air-introduced machine is connected with the exhaust outlet of dry cyclone separator by an induced duct, this air-introduced machine is connected with the air inlet of chimney by a discharge pipe, in described chimney, be provided with first spraying mechanism spraying and the second spraying mechanism of a upward spraying downwards, and the bottom of this chimney is provided with a sewage dashpot, described sewage dashpot is positioned at the below of air inlet, described the first spraying mechanism is positioned at the top of chimney, described the second spraying mechanism is between the first spraying mechanism and air inlet, described the first spraying mechanism is connected by one first branch pipe(tube) with drip pan, described the first detention tank is connected by a slag removal unit with the delivery port of sewage dashpot, described the second detention tank is communicated with the first detention tank, described the second detention tank is connected with the water inlet of chip washer by a main pipeline, described main pipeline is provided with a water circulating pump, described the second spraying mechanism is connected with main pipeline by one second branch pipe(tube), described the second branch pipe(tube) is between water circulating pump and chip washer, and be equipped with a valve on described the first branch pipe(tube) and the second branch pipe(tube).
2. a kind of chip washing sewage according to claim 1 and flue gas processing device, it is characterized in that: described slag removal unit comprises a mesh screen transporter, one clay extruded mechanism, one waste residue collecting box and a splash-guard ring, mesh screen conveyer be positioned at the first detention tank directly over, this mesh screen conveyer is connected with the delivery port of sewage dashpot by an aqueduct, described splash-guard ring is located between mesh screen transporter and sewage dashpot, the end of described aqueduct extends in splash-guard ring, described clay extruded mechanism is installed in splash-guard ring, and waste residue collecting box is installed on the outlet end below of mesh screen conveyer.
3. a kind of chip washing sewage according to claim 1 and flue gas processing device, it is characterized in that: in described discharge pipe, be provided with all one the 3rd spraying mechanism and one the 4th spraying mechanism of spray downwards, described the 3rd spraying mechanism is connected with drip pan by establishing valvular the 3rd branch pipe(tube) on one, and described the 4th spraying mechanism is connected with the first branch pipe(tube); And described discharge pipe is obliquely installed, the angle of inclination of this discharge pipe is α, 90 ° of 0 ° of < α <.
4. a kind of chip washing sewage according to claim 1 and flue gas processing device, is characterized in that: described the second detention tank is communicated with by a connected entrance with the first detention tank.
5. a kind of chip washing sewage according to claim 1 and flue gas processing device, is characterized in that: in described the first detention tank, be provided with one first dredge pump, and this first dredge pump is connected with one first slag remover.
6. a kind of chip washing sewage according to claim 1 and flue gas processing device, is characterized in that: in described the second detention tank, be provided with one second dredge pump, and this second dredge pump is connected with one second slag remover.
7. a kind of chip washing sewage according to claim 5 and flue gas processing device, is characterized in that: described the first slag remover is vertical slag remover.
8. a kind of chip washing sewage according to claim 6 and flue gas processing device, is characterized in that: described the second slag remover is horizontal slag remover.
9. a kind of chip washing sewage according to claim 1 and flue gas processing device, is characterized in that: the delivery port of described sewage dashpot is positioned at the bottom of this sewage dashpot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328455.6A CN104117242B (en) | 2014-07-11 | 2014-07-11 | A kind of chip washing sewage and flue gas processing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410328455.6A CN104117242B (en) | 2014-07-11 | 2014-07-11 | A kind of chip washing sewage and flue gas processing device |
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| CN104117242A true CN104117242A (en) | 2014-10-29 |
| CN104117242B CN104117242B (en) | 2016-04-13 |
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| CN201410328455.6A Active CN104117242B (en) | 2014-07-11 | 2014-07-11 | A kind of chip washing sewage and flue gas processing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438204A (en) * | 2014-12-07 | 2015-03-25 | 重庆三好纸业有限公司 | Wood chip cleaning device with conical rotor |
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| JPH0751534A (en) * | 1993-08-17 | 1995-02-28 | Nippon Jietsuto Kk | Wet washing, filtering and backwashing continuous scrubber |
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| CN103586209A (en) * | 2013-11-08 | 2014-02-19 | 福建省永安林业(集团)股份有限公司 | Wood chip processing device |
| CN103770192A (en) * | 2014-01-21 | 2014-05-07 | 福建省永安林业(集团)股份有限公司 | Wood chip washing flue-gas treatment device |
| CN203971569U (en) * | 2014-07-11 | 2014-12-03 | 福建省永安林业(集团)股份有限公司 | A kind of chip washing sewage and flue gas processing device |
-
2014
- 2014-07-11 CN CN201410328455.6A patent/CN104117242B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58166914A (en) * | 1982-03-29 | 1983-10-03 | Sumitomo Heavy Ind Ltd | Treatment of waste water |
| JPH0751534A (en) * | 1993-08-17 | 1995-02-28 | Nippon Jietsuto Kk | Wet washing, filtering and backwashing continuous scrubber |
| CN102068870A (en) * | 2010-12-02 | 2011-05-25 | 北京机电院高技术股份有限公司 | Complete sludge paddle anhydrated carrier gas treatment device and method |
| CN203329546U (en) * | 2013-05-10 | 2013-12-11 | 江阴市中科机电制造有限公司 | Circulating water waste gas treatment system of cotton collector |
| CN103586209A (en) * | 2013-11-08 | 2014-02-19 | 福建省永安林业(集团)股份有限公司 | Wood chip processing device |
| CN103770192A (en) * | 2014-01-21 | 2014-05-07 | 福建省永安林业(集团)股份有限公司 | Wood chip washing flue-gas treatment device |
| CN203971569U (en) * | 2014-07-11 | 2014-12-03 | 福建省永安林业(集团)股份有限公司 | A kind of chip washing sewage and flue gas processing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104438204A (en) * | 2014-12-07 | 2015-03-25 | 重庆三好纸业有限公司 | Wood chip cleaning device with conical rotor |
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| CN104117242B (en) | 2016-04-13 |
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