CN102284220B - Method and equipment for treating waste gas of hot press - Google Patents
Method and equipment for treating waste gas of hot press Download PDFInfo
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- CN102284220B CN102284220B CN 201110159092 CN201110159092A CN102284220B CN 102284220 B CN102284220 B CN 102284220B CN 201110159092 CN201110159092 CN 201110159092 CN 201110159092 A CN201110159092 A CN 201110159092A CN 102284220 B CN102284220 B CN 102284220B
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Abstract
The invention relates to a method and equipment for treating waste gas of a hot press. The method comprises the following steps of: S1, injecting water into a dust absorption pipeline to ensure that gas and water are fully contacted and mixed; and S2, allowing water spray carrying waste gas to enter a water dust scrubber, collecting sewage carrying impurities, and discharging purified gas. A water injection device is arranged in the dust absorption pipeline; the dust is not stuck onto the dust absorption pipeline easily so the pipeline is prevented from being blocked and fire is avoided; the waste gas treatment efficiency is high; and the dust, and a large amount of high-temperature volatile matter of formaldehyde and transmission lubricant are collected, the collected waste gas and waterare treated further ad separated reasonably, water is recycled, and no sewage is discharged, so secondary pollution is avoided. Meanwhile, the invention also provides equipment for treating the wastegas of the hot press.
Description
Technical field
The present invention relates to technical field of waste gas treatment, particularly relate to a kind of hot press waste gas processing method and equipment.
Background technology
Continuous flat hot press is present global state-of-the-art MDF (HDF, PB) production equipment, and this equipment has large quantity of exhaust gas to produce aborning, and dust collecting system must be set.Traditional dust collecting system in use, dust suction pipeline dust is progressively sticking long-pending and cause phenomenons such as the dust suction pipeline narrows down, thereby influences ventilation.Owing to contain the wood fibre dust with a spot of formaldehyde, paraffin and vaporization at high temperature oil gas in the waste gas, add that ventilation reduces, the gas temperature that causes entering the dust suction pipeline further improves, so cause that very easily the dust suction pipeline is on fire, equipment operating efficiency is low, and dangerous.Need a kind of new method and equipment that fully is fit to continuous flat hot press exhaust-gas treatment of exploitation.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is according to the composition of hot press waste gas and characteristic, and a kind of hot press waste gas processing method and equipment of fully being fit to is provided, and can effectively clean the sticking long-pending foreign material of dust suction pipeline, removes the pollutant in the waste gas simultaneously effectively.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of hot press waste gas processing method, comprise step:
S1: in the dust suction pipeline, spray water, make air water fully contact, mix;
S2: the water smoke that carries waste gas enters water dust scrubber, will carry the sewage collecting of impurity, and cleaned air passes is discharged.
Further, described hot press waste gas processing method also comprises S3: the sewage that carries impurity and the alkaline reaction that will collect, the waste gas in the sewage and alkaline reaction postprecipitation;
S4: will precipitate discharge, the water recycling after the purification is for step S1 supplies water.
Further, spray water inwards in described step S2 water dust scrubber porch, is used for further fully mixing of air water.
The present invention also provides a kind of hot press waste gas treatment equipment, comprising: at least one collects fan housing, dust suction pipeline, water injector and water dust scrubber;
One end of described dust suction pipeline connects the outlet of collecting fan housing, described water injector is installed in the outlet of described collection fan housing and sprays water in described dust suction pipeline, the other end of described dust suction pipeline is connected with water smoke pipeline and plumbing drain respectively, and described water smoke pipeline connects described water dust scrubber.
Further, water injector shown in comprises at least one Wen manages one;
Pipe is connected with supply flume once connecting line in the described Wen, also is provided with branch water bag and flushing liquor electric pump one in the described Wen between the described supply flume of Guan Yiyu; Described flushing liquor electric pump one draws water from described supply flume and manages a water supply by connecting line through minute water bag in Wen.
Further, be provided with float switch in the described supply flume, described supply flume is connected with the water source, and described float switch is controlled described water source and opened.
Further, described equipment also comprises at least one sedimentation basin, and described sedimentation basin connects described plumbing drain.
Further, described equipment also comprises alkali lye electric pump and alkali lye pond, and the alkali lye electric pump in connecting line feeds sedimentation basin, is used for the sewage in the precipitation sedimentation basin with the alkali lye in the alkali lye pond.
Further, described alkali lye electric pump feeds supply flume with the alkali lye in the alkali lye pond through connecting line.
Further, also be provided with heater in the described sedimentation basin.
Further, also be provided with heater in the described supply flume.
Further, also be provided with temperature sensor in the described supply flume.
Further, described hot press waste gas treatment equipment also comprises chamber-type press filter;
The entrance of described chamber-type press filter is connected to the bottom of described sedimentation basin by connecting line, the outlet of described chamber-type press filter connects described supply flume by connecting line, also is provided with the mud electric pump on the connecting line between the bottom of described chamber-type press filter and described sedimentation basin;
Described mud electric pump is transported to chamber-type press filter with the sediment of the bottom of sedimentation basin by connecting line, and the water after the chamber-type press filter press filtration is handled is transported to supply flume by connecting line.
Further, the bottom of described sedimentation basin is for dwindling gradually downwards.
Further, the top of described sedimentation basin is provided with lid.
Further, comprise at least one Wen in the entrance of water dust scrubber and manage two; The Guan Erjing connecting line is connected to described supply flume in the described Wen, also is provided with flushing liquor electric pump two between the described supply flume of Guan Eryu in the described Wen, and described flushing liquor electric pump two is managed two water supply by connecting line from supply flume in Wen.
Further, also be provided with the backflow tank between plumbing drain and the sedimentation basin, the connecting line between described backflow tank and the described sedimentation basin is provided with the backflow electric pump; The backflow tank is deposited the sewage that carries impurity that sewage pipe is discharged, and the backflow electric pump extracts the sewage in the backflow tank, is transported to sedimentation basin by connecting line.
Further, be provided with float switch in the described backflow tank, be used for monitoring backflow tank middle water level, float switch is electrically connected with the backflow electric pump.
Further, the exhaust outlet of described water dust scrubber is connected with centrifugal blower, and the exhaust outlet of described centrifugal blower also is connected with exhaust chimney.
Further, centrifugal blower is connected with rotational speed governor.
Further, described hot press waste gas treatment equipment also comprises controller.
(3) beneficial effect
The hot press waste gas processing method that technique scheme provides by spraying water, can guarantee that the sweep-up pipe rood causes pipeline blockage to clean difficult sticking amassing in the dust suction pipeline, the dust suction pipeline can be not on fire, and system is stable; Exhaust-gas treatment efficient height can not only be accepted dust, simultaneously the vaporization at high temperature thing of most formaldehyde and transmission oil is collected, the refuse under collecting and moisture clutch reason, and water is able to recycling, does not have sewage to discharge, and has avoided secondary pollution.
Description of drawings
Fig. 1 is the structural representation of the hot press waste gas treatment equipment of the embodiment of the invention;
Wherein, 1: centrifugal blower; 2: water dust scrubber; 3: manage one in the Wen; 4: throttle slide valve; 5: flow controller; 6: the backflow tank; 7: chamber-type press filter; 8: the mud electric pump; 9: sedimentation basin; 10: supply flume; 11: the alkali lye pond; 12: controller; 13: rotational speed governor; 14: collect fan housing; 15: flushing liquor electric pump one; 16: the backflow electric pump; 17: flushing liquor electric pump two; 18: the alkali lye electric pump; 19: float switch; 20: temperature sensor; 21: heater; 22: the dust suction pipeline; 23: manage two in the Wen; 24: the water smoke pipeline; 25: plumbing drain; 26: the water source; 27: Fen Shuibao.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.Straight line shown in the accompanying drawing is represented connecting line, and arrow is represented air-flow or the current flow direction in connecting line, and dotted line is represented control line.
A kind of hot press waste gas processing method comprises step: S1: spray water in the dust suction pipeline, make air water fully contact, mix; S2: the water smoke that carries waste gas enters water dust scrubber, will carry the sewage collecting of impurity, and cleaned air passes is discharged.This method can guarantee that the sweep-up pipe rood causes pipeline blockage to clean difficult sticking amassing, and the dust suction pipeline can be not on fire, and system is stable; Exhaust-gas treatment efficient height can not only be accepted dust, simultaneously the vaporization at high temperature thing of most formaldehyde and transmission oil is collected.
The hot press waste gas processing method also comprises, S3: the sewage that carries impurity and the alkaline reaction that will collect, and the waste gas in the sewage and alkaline reaction postprecipitation, and the acidic materials in the sewage are neutralized; S4: will precipitate discharge, the water recycling after the purification is for step S1 supplies water.Refuse under this method will be collected and moisture clutch reason, water is able to recycling, does not have sewage to discharge, and has avoided secondary pollution
Spraying water inwards in step S2 water dust scrubber porch, is used for further fully mixing of air water.Before entering water dust scrubber,, spray water again the further fully contact of air water is mixed except the foreign gas in the decontaminated water for better.
In conjunction with Fig. 1, the hot press waste gas treatment equipment of the embodiment of the invention, the waste gas for the treatment of hot press produces at work comprises: at least one collects fan housing 14, dust suction pipeline 22, water injector and water dust scrubber 2; One end of described dust suction pipeline 22 connects the outlet of collecting fan housing 14, described water injector is installed in the outlet of described collection fan housing 14 water spray in the described dust suction pipeline 22, the other end of described dust suction pipeline 22 is connected with water smoke pipeline 24 and plumbing drain 25 respectively, and described water smoke pipeline 24 connects described water dust scrubber 2.
Collect fan housing 14 and be used for collecting the waste gas that hot press produces at continuous flow procedure, main exhaust gas constituents is high-temperature flue gas and with vaporization at high temperature oil gas thing, paraffin volatile matter and the superheated vapor etc. of small amount of fibers dust, formaldehyde, transmission oil.In actual production, the quantity of fan housing and nozzle depends on the suction port quantity of press and user to the indoor environment requirement, inhales cover and 6 nozzles but be no less than 6.Operating mode according to self hot press in the present embodiment arranges a plurality of collection fan housings 14, realizes that the waste gas that hot press is produced in the course of the work extracts.Spray water in dust suction pipeline 22 by water injector, the current of ejection can form moisture film at the tube wall of dust suction pipeline 22, paste the tube wall helical form high forward of dust suction pipeline 22, thereby reach the purpose of cleaning dust suction pipeline 22, can prevent from effectively stopping up.The water that part is carried impurity is discharged through plumbing drain 25 by gravity; Part water is because the jet atomization of water injector becomes water smoke, water smoke can with waste gas in dust, formaldehyde, lubricating oil, the vaporization at high temperature thing of paraffin fully contact, make water fog particle become big by effects such as inertia, collision, diffusions and become heavy, the water smoke that carries waste gas is transported to water dust scrubber 2 through water smoke pipeline 24, carries out further dedusting.Centrifugal force by its inner parts in the water dust scrubber 2 and inner dash emit dust and water, water smoke is carried out the water that steam separates the pollutant that will fully contain collect, and purified gas is discharged by its outlet.The gas that gives off meets GB16297-1996 " discharge standard of air pollutants ".The sewage that carries impurity that water dust scrubber 2 is discharged is discharged.
In the present embodiment, water injector is pipe 1 in as shown in Figure 1 the Wen, and pipe 1 connects flushing liquor electric pump 1 and supply flume 10 by connecting line in the Wen.Pipe 1 is arranged in the dust suction pipeline 22 of collecting fan housing 14 in the Wen, and flushing liquor electric pump 1 draws water from supply flume 10 and manages one 3 water supply by connecting line through minute water bag 27 in a plurality of Wens.Pipe 1 can be set up in parallel a plurality ofly simultaneously in the Wen, can also select water knockout drum or distributive pipe roads etc. to flow to simultaneously in a plurality of Wens except minute water bag 27 to manage 1 for one 3 shuntings of pipe in a plurality of Wens.Pipe 1 is set in a plurality of Wens simultaneously can increases the impact force of water flow degree.With pipe one 3 angled being arranged in the dust suction pipeline 22 in a plurality of Wens, the current of ejection are advanced at utmost speed in dust suction pipeline 22 in the shape of a spiral, better to the developing result in the dust suction pipeline 22.Be provided with float switch in the supply flume 10, supply flume 10 is connected with water source 26, and float switch 19 control water sources 26 are opened.When water level is not enough, can be to supply water the supply flume 10 from water source ends such as running water.
Present embodiment also is provided with sedimentation basin 9, and plumbing drain 25 connects sedimentation basin 9, and when water injector washed dust suction pipeline 22 inside, the part current were transported to sedimentation basin 9 as the sewage that carries impurity through plumbing drain 25 under the gravity effect.The sewage that carries impurity that water dust scrubber 2 is discharged also leads to sedimentation basin 9.Sedimentation basin is used for collecting the sewage that carries flue gas impurity in the present embodiment, the secondary pollution of avoiding disorderly discharging that environment is caused.The quantity of sedimentation basin 9 depends on the size of water consumption because the water yield excessive after, current are excessive in the sedimentation basin, are unfavorable for the precipitation of dirt, thus can arrange a plurality of sedimentation basins simultaneously work disposal carry the sewage of impurity.For example two of decision design of the present invention precipitate the pond, as shown in Figure 1, the hot press waste gas treatment equipment also comprises, alkali lye electric pump 18 and alkali lye pond 11, alkali lye electric pump 18 in connecting line feeds sedimentation basin 9, is used for sewage in the precipitation sedimentation basin 9 with the alkali lye in the alkali lye pond 11.The alkali lye composition can be alkaline solutions such as limewash among the present invention, is used for the antacid waste gas sewage that contains.Behind a certain amount of alkali lye of suction, the experiment proved that from alkali lye pond 11 by alkali lye electric pump 18 in sedimentation basin 9: before not putting into alkali lye, contain CL:600mg/l, SO3:34.8mg/l, NO3:0.35mg/l in the water of sedimentation basin 9, pH value acidity is higher; And after putting into a certain amount of alkali lye, pH value be improved significantly, can reach neutral substantially, CL, SO3 and NO3 content all can reach discharge standard in the water.
Also be provided with heater 21 in the sedimentation basin 9, by the sewage that carries impurity behind the feeding alkali lye in the thermal precipitation pond 9, water temperature raises, can promote the aggravation of the reaction of impurity and alkali lye in the sewage, the amount of reaction strengthens, and can shorten the reaction time greatly, namely save the impure wastewater treatment time.Can lid be set at sedimentation basin 9 tops, can prevent effectively that the unreacted gas in the sewage overflows in the sedimentation basin.
The bottom of sedimentation basin 9 is connected with mud electric pump 8 and chamber-type press filter 7 by connecting line, mud electric pump 8 is transported to chamber-type press filter 7 with the sediment of the bottom of sedimentation basin 9 by connecting line, and the water of chamber-type press filter 7 press filtrations is transported to supply flume 10 by connecting line.7 pairs of sediments of chamber-type press filter carry out deslagging to be handled, and the material slag of discharge can automatic or manually be conveyed in the lorry, can do utilization of regenerative energy.Water in the sedimentation basin 9 is transported to supply flume 10 through after the press filtration by connecting line, can realize the recycling utilization that utilizes water resource, using water wisely cost more rationally and effectively, reach water reducing the pollution to environment simultaneously, energy-saving and emission-reduction, environmental protection.
Sedimentation basin 9 bottoms can be shapes such as trapezoidal, del, rounding arc for dwindling gradually downwards as shown in Figure 1, are convenient to sedimentary descendingly, and 8 pairs of mud electric pumps precipitation extracts better easy.
Water dust scrubber 2 porch are connected with pipe 2 23 in the Wen, and flushing liquor electric pump 2 17 is managed 2 23 water supply by connecting line from supply flume 10 in Wen.Pipe 2 23 is located at water dust scrubber 2 porch in the Wen, and waste gas was further fully mixed with water smoke before entering water dust scrubber 2.Same, pipe 2 23 in a plurality of Wens can be set in the porch of water dust scrubber 2, can increase the impact force of water flow degree, effect is better, and it is more abundant that waste gas and water smoke mix ground.Pipe 2 23 in 2 Wens for example can be set in water dust scrubber 2 porch.
Alkali lye electric pump 18 with the alkali lye in the alkali lye pond 11 in connecting line feeds supply flume 10.Because the water that filter press 7 leads to back supply flume 10 yet has and contains a certain amount of CL, SO3 and NO3 ion.So supply flume 10 is also fed alkali lye to it, be used for realizing neutralization, make the pH value in the water can reach neutral.In order to promote the aggravation of the reaction of impurity and alkali lye in the sewage, the amount of reaction strengthens, and can shorten the reaction time greatly, has namely saved the impure wastewater treatment time.In supply flume 10, be provided with heater 21 and temperature sensor 20.Temperature sensor 20 can detect the temperature in the supply flume 10, when too high or too low for temperature, suitably adjusts heater 21, makes temperature in the supply flume 10 be positioned at the adaptive temperature scope of precipitation reaction all the time.This process can be passed through the personal monitoring, also the signal output part of temperature sensor 20 and the control end of heater 21 can be connected to processor, and processor responds accordingly according to inner initialize program.Feed cistern 10 and sedimentation basin 9 are all placed heater 21, but temperature controller 20 is placed in the feed cistern 10, because the current in this equipment circulate.
Also be provided with backflow tank 6 and backflow electric pump 16 between plumbing drain 25 and the sedimentation basin 9, backflow tank 6 is deposited the sewage that carries impurity that sewage pipe 25 is discharged, sewage in 16 pairs of backflow tanks 6 of backflow electric pump extracts, and is transported to sedimentation basin 9 by connecting line.By being set, backflow tank 6 and backflow electric pump 16 can carry out controlled operation to the sewage that refluxes, the sewage that refluxes is entered into the effect that sedimentation basin 9 plays a buffering, when sedimentation basin 9 is too full, 6 retainings of backflow tank, backflow electric pump 16 is not worked; When sedimentation basin 9 had enough capacity, the water in the backflow tank 6 was drawn in the sedimentation basin 9 by backflow electric pump 16.Can carry out controlled control to the current that reflux by backflow tank 6 and backflow electric pump 16.Be provided with throttle slide valve 4 in the connecting line of backflow electric pump 16 rear and front ends, can realize current quantitative limitation in the connecting line.
Be provided with float switch 19 in the backflow tank 6, be used for monitoring backflow tank 6 middle water levels, float switch 19 is electrically connected with backflow electric pump 16.When the water level in the backflow tank 6 reached predetermined high water level, backflow electric pump 16 extracted the water in the backflow tank 6 and is discharged in the sedimentation basin 9, and when the water level in the backflow tank 6 reached predetermined low water level, backflow electric pump 16 was not worked.Realization is to the automatic adjusting of backflow tank 6 middle water levels.
The exhaust outlet of water dust scrubber 2 is connected with centrifugal blower 1, and the gas of the allow compliance with emission standards that centrifugal blower 1 can be discharged water dust scrubber 2 is displaced into exhaust chimney, is discharged to outdoor.
Centrifugal blower 1 is connected with rotational speed governor 13, and whether the rotational speed governor 13 of centrifugal blower is used for the monitoring blower fan and is running well.
Be provided with throttle slide valve and flow controller in the connecting line of the front end of pipe two in pipe one and the Wen in the described Wen.Be used for the flow of the current of flowing through is controlled.
Also be provided with controller 12 among the present invention, this controller 12 can be selected PLC logic controller, single-chip microcomputer etc., controller 12 can be realized control automatically to each parts of hot press waste gas treatment equipment, as shown in drawings, dotted line is that controller is to the control relation of each parts in the hot press waste gas treatment equipment.Present embodiment is example with industrial PLC, as shown in Figure 1, centrifugal blower 1, water dust scrubber 2, throttle slide valve 4, flow controller 5, chamber-type press filter 7, mud electric pump 8, rotational speed governor 13, collection fan housing 14, flushing liquor electric pump 1, backflow electric pump 16, flushing liquor electric pump 2 17, alkali lye electric pump 18, temperature sensor 20, heater 21 are electrically connected controller 12 respectively.Preset program in the controller 12, can realize monitoring and automatic control to centrifugal blower 1, water dust scrubber 2, throttle slide valve 4, flow controller 5, chamber-type press filter 7, mud electric pump 8, rotational speed governor 13, collection fan housing 14, flushing liquor electric pump 1, backflow electric pump 16, flushing liquor electric pump 2 17, alkali lye electric pump 18, temperature sensor 20, heater 21.Improved the automation performance of waste gas treatment equipment greatly.For example, when hot press is started working, open the PLC controller, collect fan housing 14 and open, flushing liquor electric pump 1, flushing liquor electric pump 2 17, water dust scrubber 2, centrifugal blower 1 are started working, and spray water in dust suction pipeline 22 and water dust scrubber.When supplying water according to each water supply connecting line on according to the actual amount of water demand, flow controller 5 is set, control throttle slide valve 4, thereby control is by the discharge of connecting line.The PLC controller open 18 controls of alkali lye electric pump from alkali lye pond 11, extract alkali lye by connecting line in sedimentation basin 9 and supply flume 10.The PLC controller is opened mud electric pump 8 and is extracted the sediment of sedimentation basin 9 bottoms to chamber-type press filter 7.The PLC controller connects the unlatching of temperature sensor 20 control heaters 21, and the water in sedimentation basin 9 and the supply flume 10 is heated.The PLC controller is also monitored the ruuning situation of centrifugal blowers 1 by control rotational speed governor 13.
As can be seen from the above embodiments, the hot press waste gas treatment equipment that the embodiment of the invention provides can guarantee that the sweep-up pipe rood of collecting fan housing causes pipeline blockage to clean difficult sticking amassing, and the dust suction pipeline can be not on fire, and system is stable; Exhaust-gas treatment efficient height can not only be accepted dust, simultaneously the vaporization at high temperature thing of most formaldehyde and transmission oil is collected, the refuse under collecting and moisture clutch reason, and water is able to recycling, does not have sewage to discharge, and has avoided secondary pollution.
The above only is preferred embodiment of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvement and replacement, these improvement and replacement also should be considered as protection scope of the present invention.
Claims (17)
1. a hot press waste gas processing method is characterized in that, comprises step:
S1: an end of dust suction pipeline connects the outlet of collecting fan housing, and water injector is installed in the outlet of described collection fan housing and sprays water in the dust suction pipeline, and the current of ejection form moisture film at the tube wall of dust suction pipeline, make air water fully contact, mix;
S2: the water smoke that carries waste gas enters water dust scrubber, will carry the sewage collecting of impurity, and cleaned air passes is discharged.
2. hot press waste gas processing method according to claim 1 is characterized in that, described hot press waste gas processing method also comprises S3: the sewage that carries impurity and the alkaline reaction that will collect, the waste gas in the sewage and alkaline reaction postprecipitation;
S4: will precipitate discharge, the water recycling after the purification is for step S1 supplies water.
3. hot press waste gas processing method according to claim 1 and 2 is characterized in that, sprays water inwards in described step S2 water dust scrubber porch, is used for further fully mixing of air water.
4. a hot press waste gas treatment equipment is characterized in that, comprising: at least one collects fan housing (14), dust suction pipeline (22), water injector and water dust scrubber (2);
One end of described dust suction pipeline (22) connects the outlet of collecting fan housing (14), described water injector is installed in the outlet of described collection fan housing (14) water spray in the described dust suction pipeline (22), the current of ejection form moisture film at the tube wall of dust suction pipeline (22), the other end of described dust suction pipeline (22) is connected with water smoke pipeline (24) and plumbing drain (25) respectively, and described water smoke pipeline (24) connects described water dust scrubber (2).
5. hot press waste gas treatment equipment according to claim 4 is characterized in that, shown in water injector comprise and manage one (3) at least one Wen;
Manage one (3) in the described Wen and be connected with supply flume (10) through connecting line, manage in the described Wen one (3) and described supply flume (10) between also be provided with Fen Shuibao (27) and flushing liquor electric pump one (15); Described flushing liquor electric pump one (15) draws water from described supply flume (10) and manages one (3) water supply by connecting line through minute water bag (27) in Wen.
6. hot press waste gas treatment equipment according to claim 5, it is characterized in that, be provided with float switch (19) in the described supply flume (10), described supply flume (10) is connected with water source (26), and described float switch (19) is controlled described water source (26) and opened.
7. hot press waste gas treatment equipment according to claim 5 is characterized in that, described equipment also comprises at least one sedimentation basin (9), and described sedimentation basin (9) connects described plumbing drain (25).
8. hot press waste gas treatment equipment according to claim 7, it is characterized in that, described equipment also comprises alkali lye electric pump (18) and alkali lye pond (11), alkali lye electric pump (18) in connecting line feeds sedimentation basin (9), is used for the sewage in the precipitation sedimentation basin (9) with the alkali lye in alkali lye pond (11).
9. hot press waste gas treatment equipment according to claim 8 is characterized in that, described alkali lye electric pump (18) feeds supply flume (10) with the alkali lye in alkali lye pond (11) through connecting line.
10. hot press waste gas treatment equipment according to claim 8 is characterized in that, also is provided with heater (21) in the described sedimentation basin (9).
11. hot press waste gas treatment equipment according to claim 9 is characterized in that, also is provided with heater (21) in the described supply flume (10), also is provided with temperature sensor (20) in the described supply flume (10).
12. hot press waste gas treatment equipment according to claim 8 is characterized in that, described hot press waste gas treatment equipment also comprises chamber-type press filter (7);
The entrance of described chamber-type press filter (7) is connected to the bottom of described sedimentation basin (9) by connecting line, the outlet of described chamber-type press filter (7) connects described supply flume (10) by connecting line, also is provided with mud electric pump (8) on the connecting line between the bottom of described chamber-type press filter (7) and described sedimentation basin (9);
Described mud electric pump (8) is transported to chamber-type press filter (7) with the sediment of the bottom of sedimentation basin (9) by connecting line, and the water after chamber-type press filter (7) press filtration is handled is transported to supply flume (10) by connecting line.
13. hot press waste gas treatment equipment according to claim 8 is characterized in that, comprises in the entrance of water dust scrubber (2) and manages two (23) at least one Wen; Manage two (23) in the described Wen and be connected to described supply flume (10) through connecting line, manage in the described Wen two (23) and described supply flume (10) between also be provided with flushing liquor electric pump two (17), described flushing liquor electric pump two (17) is managed two (23) from supply flume (10) in the Wen by connecting line and is supplied water.
14. hot press waste gas treatment equipment according to claim 7, it is characterized in that, also be provided with backflow tank (6) between plumbing drain (25) and the sedimentation basin (9), the connecting line between described backflow tank and the described sedimentation basin (9) is provided with backflow electric pump (16); Backflow tank (6) is deposited the sewage that carries impurity that sewage pipe (25) is discharged, and backflow electric pump (16) extracts the sewage in the backflow tank (6), is transported to sedimentation basin (9) by connecting line.
15. hot press waste gas treatment equipment according to claim 14 is characterized in that, is provided with float switch (19) in the described backflow tank (6), is used for monitoring backflow tank (6) middle water level, float switch (19) is electrically connected with backflow electric pump (16).
16. hot press waste gas treatment equipment according to claim 4, it is characterized in that, the exhaust outlet of described water dust scrubber (2) is connected with centrifugal blower (1), the exhaust outlet of described centrifugal blower (1) also is connected with exhaust chimney, and described centrifugal blower (1) is connected with rotational speed governor (13).
17. according to each described hot press waste gas treatment equipment among the claim 4-16, it is characterized in that described hot press waste gas treatment equipment also comprises controller (12).
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| KR101764815B1 (en) * | 2015-11-09 | 2017-08-03 | 유니셈(주) | Pre-treatment apparatus for waste gas treatment apparatus |
| RU2020130262A (en) * | 2018-02-16 | 2022-03-16 | Харбург-Фройденбергер Машиненбау Гмбх | METHOD AND DEVICE FOR SUCTION OF AIR IN THE AREA OF VULCANIZING PRESS |
| CN109540748A (en) * | 2018-11-27 | 2019-03-29 | 陕西理工大学 | A kind of town road dust accumulation monitoring device and monitoring method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2344076Y (en) * | 1998-09-17 | 1999-10-20 | 刘恒敏 | Wet dust-removing device |
| JP2000328070A (en) * | 1999-03-12 | 2000-11-28 | Ube Ind Ltd | Waste gasification treatment method |
| CN2584279Y (en) * | 2002-12-16 | 2003-11-05 | 周耀球 | Device for fume dust separating and purifying and desulfurization |
| CN201730816U (en) * | 2010-06-04 | 2011-02-02 | 上海瀛冠实业有限公司 | Pressure-boosting water outlet body |
| CN202122892U (en) * | 2011-06-14 | 2012-01-25 | 苏州市协力环保设备有限公司 | Waste gas treatment device of hot press |
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