CN219003371U - Tail gas dust removal system in artificial board production and manufacturing process - Google Patents
Tail gas dust removal system in artificial board production and manufacturing process Download PDFInfo
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- CN219003371U CN219003371U CN202222574003.9U CN202222574003U CN219003371U CN 219003371 U CN219003371 U CN 219003371U CN 202222574003 U CN202222574003 U CN 202222574003U CN 219003371 U CN219003371 U CN 219003371U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
The utility model discloses a tail gas dust removing system in the production and manufacturing process of artificial boards, which comprises a dust removing mechanism and a waste water treatment mechanism, wherein the dust removing mechanism comprises a spray dust remover and a wet electrostatic dust remover, the top of the spray dust remover is connected with a tail gas inlet pipeline, the bottom of the spray dust remover is connected with the wet electrostatic dust remover through an air outlet pipeline, a plurality of uniformly distributed fin plates are arranged in the spray dust remover, and a plurality of uniformly distributed spray heads are arranged on the upper side of the fin plates, which are positioned on the inner wall of the spray dust remover. The tail gas dust removal system in the artificial board production and manufacturing process has the advantages that the dust removal efficiency is improved, water is saved, long-time stable operation of the system is ensured, and long-time operation of the system is ensured to reach the standard.
Description
Technical Field
The utility model relates to the technical field of tail gas dust removal equipment, in particular to a tail gas dust removal system in the artificial board production and manufacturing process.
Background
With the rapid development of the wood industry, the yield of the artificial board is greatly improved. The artificial board is made up by using small-diameter wood and wood processing residue and fibre plant through the processes of wood chip cutting, cooking, hot grinding separation, sizing drying and hot press forming, etc., and can produce a large quantity of tail gas. The tail gas contains a large amount of dust, and the direct emission into the air can cause serious damage to the environment, so that the tail gas treatment is required to be subjected to dust removal treatment, and the dust removal treatment in the prior art comprises the following processes: the tail gas enters a spray dust remover, the spray dust remover sprays dust removal, static dust removal, a chimney and discharged outside after reaching standards, and the waste water and waste residue discharged outside the spray dust remover enter a sewage pool, are filtered, and are sprayed by a clean water pump.
The spray heads in the prior art are evenly distributed and spray water and waste gas are mixed downwards to bring dust into water, so that the aim of dust removal is achieved, but the defect of large water consumption exists, meanwhile, the spray water and the dust are not mixed sufficiently, the dust removal efficiency is 70-75%, the dust removal effect is poor, sewage formed by dust removal is only partially filtered simply, the SS of circulating water is high and is up to more than 500, even 2000, particles exist in the circulating water easily, the spray heads are blocked, and secondary pollution of circulating spraying exists. And the dust removal unit of the wet electrostatic precipitator in the prior art can only clear up the whole dust removal unit simultaneously when carrying out the deashing, and cleaning efficiency is low, and is very inconvenient, and after a position damages, just lead to dust removal unit whole can not use, influences normal operating, easily leads to dust particle to exceed standard.
Disclosure of Invention
The utility model aims to provide a tail gas dust removal system in the artificial board production and manufacturing process, which improves the dust removal efficiency, saves water, ensures long-time stable operation of the system and ensures that the system operates to reach the standard for a long time.
In order to achieve the above purpose, the utility model provides a tail gas dust removing system in the artificial board production and manufacturing process, which comprises a dust removing mechanism and a waste water treatment mechanism, wherein the dust removing mechanism comprises a spray dust remover and a wet electrostatic dust remover, the top of the spray dust remover is connected with a tail gas inlet pipeline, the bottom of the spray dust remover is connected with the wet electrostatic dust remover through an air outlet pipeline, a plurality of wing plates which are distributed are arranged in the spray dust remover, and a plurality of spray heads which are uniformly distributed are arranged on the upper side of the wing plates and positioned on the inner wall of the spray dust remover;
the waste water treatment mechanism comprises a micro-filter, a sewage tank, a sewage pump, a filter press, a clean water tank and a clean water pump, wherein a waste liquid outlet of the spray dust remover is connected with the micro-filter, a liquid outlet of the micro-filter and a waste liquid outlet of the wet electrostatic dust remover are connected with the sewage tank, the sewage tank is connected with the filter press through the sewage pump, a liquid outlet pipeline of the filter press is connected with the clean water tank, the clean water tank is connected with the clean water pipeline through the clean water pump, and the clean water pipeline is connected with the spray header.
Preferably, a plurality of dust removing units arranged in a partition mode are arranged in the wet electrostatic dust collector, and each dust removing unit is correspondingly provided with a spraying ash removing device; the dust removing unit comprises a high-voltage porcelain bottle, an anode dust collecting plate and a discharge cathode, wherein the high-voltage porcelain bottle is electrically connected with the anode dust collecting plate and the discharge cathode, and the anode dust collecting plate and the discharge cathode are arranged at intervals in parallel to the flowing direction of the airflow. The electrostatic dust collection adopts partition control and partition operation, the electricity consumption is controlled according to the load, the electricity consumption is saved, and meanwhile, the partition dust collection is carried out, so that the dust collection is ensured to be clean, and the dust collection efficiency is improved.
Preferably, a gap is formed between two adjacent fin plates, each fin plate comprises a fixing plate and a support plate, the support plates are obliquely arranged on one side of the fixing plate, one ends of the support plates, which are far away from the fixing plates, are obliquely extended upwards, and a mixed included angle is formed between the support plates and the fixing plates.
Preferably, an electromagnetic pulse valve is arranged at one end of the clear water pipeline, which is connected with the spray header, and the spray header is an atomization spray head.
Therefore, the tail gas dust removal system with the structure is provided with the fin plates to realize mixed spraying in the production and manufacturing process of the artificial board, so that the spray water and the tail gas are mixed more fully, the dust removal efficiency is improved from 70-75% to 95-97%, the dust removal units of the wet electrostatic dust remover are arranged in a partitioning mode, the electricity consumption is saved, the energy is saved, the consumption is reduced, the operation cost is saved, partition control is adopted to carry out partition dust removal, the dust removal efficiency is greatly improved by 30-50%, the original 50-70% is improved to 95-99%, the dust removal effect is further improved, the normal operation of the system is ensured, the guarantee rate of the system operation is improved, the partition adjustment can be carried out according to the system operation condition, the operation cost is reduced, the micro-filter and the sewage pool are arranged, the generated waste water is subjected to filtration treatment, the effect of solid-liquid separation is improved, the purification efficiency of the sewage is improved, the spray purification efficiency is improved from 40-60% to 90-98%, the clean of the circulating water is ensured, the spray head is prevented from blocking the spray dust removal effect is improved, the water consumption is reduced, and the energy-saving and the environmental protection purpose is realized.
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic diagram of an embodiment of an exhaust dust removal system in the process of manufacturing an artificial board according to the present utility model;
FIG. 2 is a schematic diagram of the internal structure of a spray dust collector of a tail gas dust collection system in the artificial board production and manufacturing process;
fig. 3 is a schematic distribution diagram of a dust removing unit of a tail gas dust removing system in the manufacturing process of the artificial board.
Reference numerals:
1. a dust removing mechanism; 2. a wastewater treatment mechanism; 3. a spray dust remover; 4. wet electrostatic dust collector; 5. a tail gas inlet pipe; 6. an air outlet pipeline; 7. an exhaust duct; 8. a fin plate; 801. a fixing plate; 802. a support plate; 803. mixing an included angle; 9. a spray header; 10. a dust removal unit; 101. a high-voltage porcelain bottle; 102. an anode dust collecting plate; 103. a discharge cathode; 11. a micro-filter; 12. a sewage pool; 13. a sewage pump; 14. a filter press; 15. a clean water tank; 16. a clean water pump; 17. a clear water pipeline; 18. an electromagnetic pulse valve.
Detailed Description
The technical scheme of the utility model is further described below through the attached drawings and the embodiments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Examples
Referring to fig. 1 to 3, as shown in the drawings, the utility model provides a tail gas dust removal system in the artificial board production and manufacturing process, which comprises a dust removal mechanism 1 and a wastewater treatment mechanism 2, wherein the dust removal mechanism 1 is used for removing dust in tail gas, and wastewater generated by the dust removal mechanism 1 is recycled after being treated by the wastewater treatment mechanism 2, so that the system is energy-saving and environment-friendly. The dust removal mechanism 1 comprises a spray dust remover 3 and a wet electrostatic dust remover 4, the top of the spray dust remover 3 is connected with a tail gas inlet pipeline 5, the bottom of the spray dust remover 3 is connected with the wet electrostatic dust remover through an air outlet pipeline 6, tail gas firstly enters into the spray dust remover 3 for spray dust removal, then enters into the wet electrostatic dust remover for further electrostatic dust removal, and the dust removal effect is improved. The top of the wet electrostatic precipitator 4 is provided with an exhaust pipeline 7, and the gas subjected to double dust removal is discharged through the exhaust pipeline 7.
Be provided with a plurality of fin 8 that all are the distribution in the spray dust remover 3, be provided with the clearance between two adjacent fin 8, fin 8 includes fixed plate 801 and extension board 802, and the extension board 802 slope sets up in one side of fixed plate 801, and the one end slope that fixed plate 801 was kept away from to the extension board 802 upwards extends, forms between extension board 802 and the fixed plate 801 and thoughtlessly moves contained angle 803. The tail gas enters the spray dust collector 3 through the tail gas inlet pipeline 5 and continuously flows downwards, and in the flowing process, the fin plates 8 block the tail gas and slow down the flowing speed of the tail gas, so that the contact time of the tail gas and spray water is increased, and the spray dust collection effect is improved. And the spray water is also intercepted by the support plate 802 which is arranged obliquely upwards, so that the spray water can be gathered at the mixing included angle 803. When the tail gas flows downwards to strike the support plate 802, the tail gas is fully mixed with spray water in the aggregation mixing included angle 803, and the mixed solid-liquid mixture flows out of the mixing included angle and is discharged downwards along with the gradual increase of the water, so that the mixing spraying is realized, dust in the tail gas is fully removed, the dust removal efficiency is improved from 70-75% to 95-97%, and the spraying dust removal effect is improved.
The upside of fin 8 is located and is provided with a plurality of evenly distributed's shower nozzle 9 on the 3 inner wall of spray dust remover, and shower nozzle 9 is atomizer, and atomizer's setting makes shower water and tail gas mixed more abundant, and the dust is condensed into the granule group gradually after abundant combination with the water smoke, subsides fast under self gravity effect to improve dust removal efficiency.
The wet electrostatic precipitator 4 is internally provided with a plurality of dust removal units 10 which are arranged in a partitioning manner, each dust removal unit 10 comprises a high-voltage porcelain bottle 101, an anode dust collection plate 102 and a discharge cathode 103, the high-voltage porcelain bottle 101 is electrically connected with the anode dust collection plate 102 and the discharge cathode 103, and the anode dust collection plate 102 and the discharge cathode 103 are arranged at intervals parallel to the flowing direction of air flow. The dust removing unit 10 is convenient to carry out partition management on the dust removing unit 10 in a partitioning manner, the single dust removing unit 10 can be closed or opened, one dust removing unit 10 can be stopped after any dust removing unit 10 fails, other dust removing units 10 are not affected, the influence of electric field faults on the efficiency of the wet electrostatic precipitator is reduced, therefore, under the condition that the machine set runs at full load, dust concentration emission can meet the environmental protection requirement when the single dust removing unit 10 fails, the whole dust removing unit 10 is prevented from being broken after the dust removing unit 10 is partially blocked or damaged, the shutdown is caused, the dust removing efficiency is affected, the stable operation of the system is ensured, and the guarantee rate of the operation of the system is improved.
In the utility model, when the dust removing unit 10 is used for removing dust, only the blocked part is required to be stopped, a mode that a plurality of dust removing units 10 are staggered to run is adopted in the dust removing process, the dust removing treatment is carried out by stopping the power supply of the corresponding dust removing unit 10 before dust removing, other dust removing units 10 run normally, and at least 50% of dust removing units 10 of equipment run normally. After the ash removal of one dust removing unit 10 is finished, a power supply electric field is turned on to enable the dust removing unit to operate, and then ash removal treatment is carried out on the other dust removing unit 10. The equipment is ensured to stably operate for a long time all the time, and the influence on dust removal efficiency caused by the increase of instantaneous smoke emission concentration due to the fact that an electric field is disconnected while ash removal is avoided. And carry out the subregion clearance to dust removal unit 10, improve the deashing effect, be convenient for thoroughly deashing clean, and then improve the dust removal effect, ensure the long-time steady operation of dust removal system. In addition, the utility model can also carry out regional adjustment on the dust removing unit 10 according to the content of dust in the tail gas and the condition of the gas entering the wet electrostatic precipitator 4, thereby reducing the operation cost and saving the cost by more than 30 percent. Specifically, when the dust content in the tail gas is high or the flow rate of the tail gas is high, the dust removing unit 10 is fully opened, and when the dust content in the tail gas is low or the flow rate of the tail gas is low, the dust removing unit 10 is partially opened.
The waste water treatment mechanism 2 comprises a micro-filter 11, a sewage tank 12, a sewage pump 13, a filter press 14, a clean water tank 15 and a clean water pump 16, wherein a waste liquid outlet of the spray dust remover 3 is connected with the micro-filter 11, a liquid outlet of the micro-filter 11 and a waste liquid outlet of the wet electrostatic dust remover 4 are both connected with the sewage tank 12, the sewage tank 12 is connected with the filter press 14 through the sewage pump 13, a liquid outlet pipeline of the filter press 14 is connected with the clean water tank 15, the clean water tank 15 is connected with a clean water pipeline 17 through the clean water pump 16, and the clean water pipeline 17 is connected with the spray header 9. An electromagnetic pulse valve 18 is arranged at one end of the clean water pipeline 17 connected with the spray header 9, and water of the spray header 9 is sprayed out in a high-pressure spray mode.
The waste water generated by the spray dust remover 3 enters the micro-filter 11, and is subjected to solid-liquid separation in the micro-filter 11, so that the waste water entering the sewage tank 12 is as clean as possible, the pollution to circulating water is reduced, the spray dust removing efficiency is improved, the sewage treated by the micro-filter 11 and the sewage generated by the wet electrostatic dust remover 4 all enter the sewage tank 12, and then enter the filter press 14 through the sewage pump 13 for filtering treatment, so that the sewage treatment is cleaner, the clean of circulating spray water is ensured, the SS of the circulating water is less than 200, the spray header 9 is not easy to block, the sprayed water mist is finer, and the spray effect is improved. And the electromagnetic pulse valve 18 is arranged, so that sprayed water mist is pulse, the mixing of dust in tail gas and spray water is further promoted, and the dust removal efficiency is improved.
The specific working process comprises the following steps: the tail gas enters the spray dust remover through the air inlet pipeline, meanwhile, the clean water pump pumps the circulating water in the clean water tank into the clean water pipe, the circulating water in the clean water pipe enters the spray header through the electromagnetic pulse valve, the circulating water is sprayed into the spray dust remover through the spray header to be mixed with the tail gas, dust in the tail gas and water mist are combined and condensed into particle clusters, the tail gas after spraying and dust removal enters the wet electrostatic dust remover through the air outlet pipeline, electrostatic dust removal is carried out in the wet electrostatic dust remover through the dust removal unit, and the gas after electrostatic dust removal treatment is discharged upwards through the air outlet pipeline. The waste water generated by the spray dust remover enters the micro-filter for solid-liquid separation, the separated waste water and the waste water generated by the wet electrostatic dust remover enter a sewage pool together for collection, the sewage collected by the sewage pool is pumped into a filter press for filtration and separation by a sewage pump, and the clear water after filtration and separation enters a clean water pool for recycling.
Therefore, the tail gas dust removal system with the structure is provided with the fin plates to realize mixed spraying in the production and manufacturing process of the artificial board, so that spray water and tail gas are mixed more fully, the dust removal efficiency is improved, the dust removal units of the wet electrostatic dust remover are arranged in a partitioned mode, the dust removal effect is further improved, the normal operation of the system is ensured, the guarantee rate of the operation of the system is improved, partition adjustment can be carried out according to the operation condition of the system, the operation cost is reduced, the arrangement of the micro-filter and the sewage pool is carried out, the generated waste water is subjected to all filtration treatment, the effect of solid-liquid separation is improved, the purification efficiency of sewage is improved, the cleanness of circulating water is ensured, the blockage of a spray header by the circulating water is prevented, the spray dust removal effect is improved, the spray water consumption is reduced, and the purposes of energy conservation and environmental protection are realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.
Claims (4)
1. The utility model provides a tail gas dust pelletizing system in wood-based plate production manufacturing process which characterized in that: the device comprises a dust removing mechanism and a wastewater treatment mechanism, wherein the dust removing mechanism comprises a spray dust remover and a wet electrostatic dust remover, the top of the spray dust remover is connected with a tail gas inlet pipeline, the bottom of the spray dust remover is connected with the wet electrostatic dust remover through an air outlet pipeline, a plurality of uniformly distributed fin plates are arranged in the spray dust remover, and a plurality of uniformly distributed spray heads are arranged on the upper side of the fin plates on the inner wall of the spray dust remover;
the waste water treatment mechanism comprises a micro-filter, a sewage tank, a sewage pump, a filter press, a clean water tank and a clean water pump, wherein a waste liquid outlet of the spray dust remover is connected with the micro-filter, a liquid outlet of the micro-filter and a waste liquid outlet of the wet electrostatic dust remover are connected with the sewage tank, the sewage tank is connected with the filter press through the sewage pump, a liquid outlet pipeline of the filter press is connected with the clean water tank, the clean water tank is connected with the clean water pipeline through the clean water pump, and the clean water pipeline is connected with the spray header.
2. The tail gas dust removal system in the artificial board production and manufacturing process according to claim 1, wherein: the wet electrostatic precipitator is internally provided with a plurality of dust removal units arranged in a partitioning mode, and each dust removal unit is correspondingly provided with a spraying ash removal device.
3. The tail gas dust removal system in the artificial board production and manufacturing process according to claim 1, wherein: the fin plate comprises a fixing plate and a support plate, wherein the support plate is obliquely arranged on one side of the fixing plate, one end of the support plate, which is far away from the fixing plate, is obliquely upwards extended, and a mixed included angle is formed between the support plate and the fixing plate.
4. The tail gas dust removal system in the artificial board production and manufacturing process according to claim 1, wherein: and an electromagnetic pulse valve is arranged at one end of the clear water pipeline, which is connected with the spray header, and the spray header is an atomization spray head.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222574003.9U CN219003371U (en) | 2022-09-28 | 2022-09-28 | Tail gas dust removal system in artificial board production and manufacturing process |
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| CN202222574003.9U CN219003371U (en) | 2022-09-28 | 2022-09-28 | Tail gas dust removal system in artificial board production and manufacturing process |
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| CN219003371U true CN219003371U (en) | 2023-05-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430522A (en) * | 2022-09-28 | 2022-12-06 | 广西金科环境工程有限公司 | Tail gas dust removal treatment method in artificial board production and manufacturing process |
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- 2022-09-28 CN CN202222574003.9U patent/CN219003371U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115430522A (en) * | 2022-09-28 | 2022-12-06 | 广西金科环境工程有限公司 | Tail gas dust removal treatment method in artificial board production and manufacturing process |
| CN115430522B (en) * | 2022-09-28 | 2024-06-21 | 广西金科环境工程有限公司 | Tail gas dust removal treatment method in artificial board production and manufacturing process |
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