CN109603400A - A kind of energy-efficient central dust remover - Google Patents

A kind of energy-efficient central dust remover Download PDF

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Publication number
CN109603400A
CN109603400A CN201910061959.9A CN201910061959A CN109603400A CN 109603400 A CN109603400 A CN 109603400A CN 201910061959 A CN201910061959 A CN 201910061959A CN 109603400 A CN109603400 A CN 109603400A
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CN
China
Prior art keywords
fixedly installed
settling tank
purification pot
tank
blower
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Granted
Application number
CN201910061959.9A
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Chinese (zh)
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CN109603400B (en
Inventor
张善平
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Shenzhen City In United States For Environmental Protection Equipment Co
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Shenzhen City In United States For Environmental Protection Equipment Co
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Publication of CN109603400A publication Critical patent/CN109603400A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D50/00Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/60Combinations of devices covered by groups B01D46/00 and B01D47/00

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Particles Using Liquids (AREA)

Abstract

The invention discloses a kind of energy-efficient central dust removers, including settling tank, purification pot, control panel, the side surface middle part of the settling tank is fixedly installed blower, the inner wall of dirt pocket is fixedly installed multiple spray heads by feed pipe inside the settling tank, water tank is fixedly installed above the sedimentation top tank structure dirt pocket, gas transmission pipe surface between the purification pot and settling tank is fixedly installed hot dryer, and the control panel is fixed at purification pot front side surface upper one end.Adjustable atomizer of the invention, which makes water fogging, to be sprayed in the air to drive dusty gas to settle and suck in settling tank under fan action, spray head settles again to improve dedusting quality the indoor dusty gas of dedusting, dusty gas after settling again is transported in purification pot through hot dryer, it is discharged into atmosphere again through exhaust outlet under purifying box effect after the high efficiency filter of three layer filtration net in purified tank, dust removal performance is strong, and using effect is good.

Description

A kind of energy-efficient central dust remover
Technical field
The present invention relates to technical field of dust removal equipment, specifically a kind of energy-efficient central dust remover.
Background technique
Dedusting removes particulate matter from dusty gas to reduce the technical measures that it is discharged to atmosphere.Industrial building removes The flammable material dirt that suspends, such as mud coal, bakelite powder, aluminium powder, flax dirt, flour, tobacco powder, these dust are commonly present in dirt system A large amount of high-temperature gases are generated with the mixture of air because vigorous oxidation is reacted, makes increased pressure in dust pelletizing system and is formed quick-fried It is fried.The dust pelletizing system of industrial building is a kind of local mechanical air draft system captured and purify the dust generated in production process System, the dust pelletizing system of industrial building are mainly made of exhaust hood, air hose, blower, cleaner etc..That is, dust pelletizing system It is a local mechanical exhaust system for being connected dust discharge cover, blower, cleaner by air duct.Existing building dedusting system System directly carries out cleaning operation using blower by dust hood mostly, adopts since dusty gas is unstable in air, and merely It is dusted with filter screen, situations such as dust collection efficiency is low, and dust removing effects are poor easily occurs, easily cause dedusting increased costs, used Effect is poor.
Summary of the invention
The purpose of the present invention is to provide a kind of energy-efficient central dust removers, to solve the problems of the prior art.
To achieve the above object, the invention provides the following technical scheme: a kind of energy-efficient central dust remover, including sedimentation Tank, purification pot, control panel, the side surface middle part of the settling tank are fixedly installed wind by opening up the through-hole of round The top of machine, settling tank side blower is movably set with adjustable atomizer, the top of the settling tank by adjustment seat Surface middle part is fixedly installed booster water pump by mounting base, and the settling tank top surface booster water pump side offers circle The water inlet of shape, the sedimentation top tank structure bottom end are fixedly installed dirt pocket, the dirt pocket top surface by support base Middle part is fixedly installed feed pipe by opening up the through-hole of round, and the end surface that the feed pipe is located at dedusting chamber interior walls is solid Surely multiple spray heads are provided with, the top of the sedimentation top tank structure dirt pocket is fixedly installed water tank by partition, described net Change tank and settling tank side is fixed at by three-legged supporting frame, the gas transmission pipe surface between the purification pot and settling tank is fixed It is provided with hot dryer, the inner wall of the purification pot is fixedly installed annular cleaning shaft, the cleaning shaft by connection frame Inlet end at be fixedly installed solenoid valve, purifying box, the solenoid valve are fixedly installed at the outlet side of the cleaning shaft The surface of cleaning shaft between purifying box is successively fixedly installed primary filter, secondary filter, three-stage filtration net, institute Purification pot is stated far from being fixedly installed rectangular-shaped exhaust outlet, the control on the outside of purifying box in the middle part of one side surface lower end of settling tank Panel processed is fixed at purification pot front side surface upper one end, the control terminal of the control panel respectively with blower, pressurized water The control terminal electric connection of pump, hot dryer.
Preferably, case is movably set with by opening up rectangular-shaped mounting groove in the middle part of front side surface one end of the settling tank Door, the bottom surface of the settling tank are fixedly installed at least three action rollers, the front side of the purification pot by support rod Surface one end is longitudinally fixed to be provided with transparent windows.
Preferably, the blower is suction blower, is fixedly installed circular arc on the outside of the blower of the settling tank side Shape shield.
Preferably, flow control is fixedly installed between the feed pipe between the water tank water outlet and dirt pocket water inlet end Valve processed, the blowdown pipe surface that the settling tank, purification pot bottom surface middle part are arranged are fixedly installed check valve, the blowdown The feed end of pipe is fixedly connected with the bottom surface of dirt pocket, cleaning shaft respectively by tee tube.
Preferably, the adjustable atomizer is motorized adjustment spray head, the relative adjustment angle of the adjustable atomizer Range is -45~45 degree.
Preferably, the both ends of the booster water pump are fixedly connected with adjustable atomizer, water tank respectively by water-supply-pipe, The outlet air end of the blower is fixedly connected by air hose with the air inlet that one side surface upper end of dirt pocket is arranged.
Compared with prior art, the beneficial effects of the present invention are: the present invention is set in the side surface middle part fixation of settling tank It is equipped with blower, booster water pump is fixedly installed in the middle part of the top surface of settling tank, the inner wall of dirt pocket is by giving inside settling tank Water pipe is fixedly installed multiple spray heads, settles and is fixedly installed water tank above top tank structure dirt pocket, purification pot and sedimentation Gas transmission pipe surface between tank is fixedly installed hot dryer, and the surface of the cleaning shaft between solenoid valve and purifying box is successively solid Surely it is provided with primary filter, secondary filter, three-stage filtration net, adjustable atomizer, which makes water fogging to spray to, to be contained in the air to drive Dirt gas settling simultaneously sucks in settling tank under fan action, and spray head settles again to mention the indoor dusty gas of dedusting High dedusting quality, then dusty gas after settling are transported in purification pot through hot dryer, three layer filtration net in purified tank It is discharged into atmosphere again through exhaust outlet under purifying box effect after high efficiency filter, dust removal performance is strong, and work efficiency is high, and it is energy-efficient, Using effect is good.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is cross-sectional view of the invention.
In figure: 1- settling tank, 2- purification pot, 3- control panel, 4- blower, 5- is adjustable atomizer, 6- booster water pump, 7- Water inlet, 8- dirt pocket, 9- feed pipe, 10- spray head, 11- water tank, 12- hot dryer, 13- cleaning shaft, 14- electromagnetism Valve, 15- purifying box, 16- primary filter, 17- secondary filter, 18- three-stage filtration net, 19- exhaust outlet, 20- chamber door, 21- Idler wheel, 22- observation window, 23- shield, 24- flow control valve, 25- sewage pipe, 26- check valve, 27- air inlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~2, in the embodiment of the present invention, a kind of energy-efficient central dust remover, including settling tank 1, purification pot 2, control panel 3, the side surface middle part of settling tank 1 are fixedly installed blower 4, settling tank 1 by opening up the through-hole of round The top of side blower 4 is movably set with adjustable atomizer 5 by adjustment seat, passes through peace in the middle part of the top surface of settling tank 1 Dress seat is fixedly installed booster water pump 6, and 1 top surface booster water pump of settling tank, 6 side offers the water inlet 7 of round, sinks Drop 1 inner wall bottom end of tank is fixedly installed dirt pocket 8 by support base, and 8 top surface of dirt pocket middle part is by opening up round Through-hole be fixedly installed feed pipe 9, the end surface that feed pipe 9 is located at 8 inner wall of dirt pocket is fixedly installed multiple spray heads 10, the top of 1 inner wall dirt pocket 8 of settling tank is fixedly installed water tank 11 by partition, and purification pot 2 is solid by three-legged supporting frame Fixed to be arranged in 1 side of settling tank, the gas transmission pipe surface between purification pot 2 and settling tank 1 is fixedly installed hot dryer 12, purification The inner wall of tank 2 is fixedly installed annular cleaning shaft 13 by connection frame, is fixedly installed electricity at the inlet end of cleaning shaft 13 Magnet valve 14 is fixedly installed purifying box 15, the dust removing tube between solenoid valve 14 and purifying box 15 at the outlet side of cleaning shaft 13 The surface in road 13 is successively fixedly installed primary filter 16, secondary filter 17, three-stage filtration net 18, and purification pot 2 is far from heavy The outside of purifying box 15 is fixedly installed rectangular-shaped exhaust outlet 19 in the middle part of drop 1 one side surface lower end of tank, and the fixation of control panel 3 is set Set in 2 front side surface upper one end of purification pot, the control terminal of control panel 3 respectively with blower 4, booster water pump 6, hot dryer 12 Control terminal be electrically connected;Case is movably set with by opening up rectangular-shaped mounting groove in the middle part of front side surface one end of settling tank 1 Door 20, the bottom surface of settling tank 1 is fixedly installed at least three action rollers 21, the front side table of purification pot 2 by support rod Face one end is longitudinally fixed to be provided with transparent windows 22, enhances practicability;Blower 4 is suction blower 4,1 side of settling tank The outside of blower 4 is fixedly installed arc-shaped shield 23, enhances the security performance used;11 water outlet of water tank and dirt pocket It is fixedly installed flow control valve 24 between feed pipe 9 between 8 water inlet ends, is set in the middle part of settling tank 1,2 bottom surface of purification pot 25 surface of sewage pipe set is fixedly installed check valve 26, the feed end of sewage pipe 25 by tee tube respectively with dirt pocket 8, The bottom surface of cleaning shaft 13 is fixedly connected, and improves utilization rate;Adjustable atomizer 5 is motorized adjustment spray head, adjustable atomization The relative adjustment angular range of spray head 5 is -45~45 degree, effectively enhances dedusting work capacity;The both ends of booster water pump 6 pass through defeated Water pipe is fixedly connected with adjustable atomizer 5, water tank 11 respectively, and the outlet air end of blower 4 passes through air hose and 8 side table of dirt pocket The air inlet 27 of face upper end setting is fixedly connected, and guarantees the reliability of connection.
The working principle of the invention is: setting operating parameters by control panel 3 when use and starts, adjustable atomizer 5, which make water fogging, sprays in the air to drive dusty gas to settle and suck in settling tank 1 under the effect of blower 4, and spray head 10 is to removing The indoor dusty gas of dirt is settled again to improve dedusting quality, then the dusty gas after settling is transported to through hot dryer 12 In purification pot 2, it is discharged into again under the effect of purifying box 15 through exhaust outlet 19 after the high efficiency filter of three layer filtration net in purified tank 2 Atmosphere, dust removal performance is strong, and work efficiency is high, and using effect is good.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.

Claims (6)

1. a kind of energy-efficient central dust remover, including settling tank (1), purification pot (2), control panel (3), it is characterised in that: The side surface middle part of the settling tank (1) is fixedly installed blower (4), the settling tank by opening up the through-hole of round (1) top of side blower (4) is movably set with adjustable atomizer (5) by adjustment seat, the top table of the settling tank (1) Middle face is fixedly installed booster water pump (6) by mounting base, and settling tank (1) top surface booster water pump (6) side is opened Water inlet (7) equipped with round, settling tank (1) the inner wall bottom end are fixedly installed dirt pocket (8), institute by support base It states and is fixedly installed feed pipe (9) in the middle part of dirt pocket (8) top surface by opening up the through-hole of round, the feed pipe (9) End surface positioned at dirt pocket (8) inner wall is fixedly installed multiple spray heads (10), settling tank (1) the inner wall dirt pocket (8) top is fixedly installed water tank (11) by partition, and it is heavy that the purification pot (2) is fixed at by three-legged supporting frame Tank (1) side drops, and the gas transmission pipe surface between the purification pot (2) and settling tank (1) is fixedly installed hot dryer (12), institute The inner wall for stating purification pot (2) is fixedly installed annular cleaning shaft (13) by connection frame, the air inlet of the cleaning shaft (13) It is fixedly installed at end solenoid valve (14), is fixedly installed purifying box (15) at the outlet side of the cleaning shaft (13), it is described The surface of cleaning shaft (13) between solenoid valve (14) and purifying box (15) is successively fixedly installed primary filter (16), two Grade filter screen (17), three-stage filtration net (18), the purification pot (2) is far from purifying box in the middle part of (1) one side surface lower end of settling tank (15) it is fixedly installed on the outside of rectangular-shaped exhaust outlet (19), the control panel (3) is fixed on front side of purification pot (2) Surface upper one end, the control terminal of the control panel (3) respectively with blower (4), booster water pump (6), hot dryer (12) Control terminal is electrically connected.
2. a kind of energy-efficient central dust remover according to claim 1, it is characterised in that: before the settling tank (1) It is movably set with chamber door (20) in the middle part of the one end of side surface by opening up rectangular-shaped mounting groove, the bottom table of the settling tank (1) Face is fixedly installed at least three action rollers (21) by support rod, and front side surface one end of the purification pot (2) is longitudinally solid Surely transparent windows (22) are provided with.
3. a kind of energy-efficient central dust remover according to claim 1, it is characterised in that: the blower (4) is sucking Formula air blower (4) is fixedly installed arc-shaped shield (23) on the outside of settling tank (1) the side blower (4).
4. a kind of energy-efficient central dust remover according to claim 1, it is characterised in that: water tank (11) water outlet It is fixedly installed flow control valve (24) between feed pipe (9) between end and dirt pocket (8) water inlet end, the settling tank (1), Sewage pipe (25) surface being arranged in the middle part of purification pot (2) bottom surface is fixedly installed check valve (26), the sewage pipe (25) feed end is fixedly connected with the bottom surface of dirt pocket (8), cleaning shaft (13) respectively by tee tube.
5. a kind of energy-efficient central dust remover according to claim 1, it is characterised in that: the adjustable atomizer It (5) is motorized adjustment spray head, the relative adjustment angular range of the adjustable atomizer (5) is -45~45 degree.
6. a kind of energy-efficient central dust remover according to claim 1, it is characterised in that: the booster water pump (6) Both ends are fixedly connected with adjustable atomizer (5), water tank (11) respectively by water-supply-pipe, and the outlet air end of the blower (4) is logical It crosses air hose and is fixedly connected with the air inlet (27) that (8) one side surface upper end of dirt pocket is arranged.
CN201910061959.9A 2019-01-23 2019-01-23 High-efficiency energy-saving central dust remover Active CN109603400B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910061959.9A CN109603400B (en) 2019-01-23 2019-01-23 High-efficiency energy-saving central dust remover

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Application Number Priority Date Filing Date Title
CN201910061959.9A CN109603400B (en) 2019-01-23 2019-01-23 High-efficiency energy-saving central dust remover

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CN109603400A true CN109603400A (en) 2019-04-12
CN109603400B CN109603400B (en) 2021-04-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112316631A (en) * 2020-10-14 2021-02-05 山东天智信息科技有限公司 Organic waste gas treatment device

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099937A (en) * 1976-11-19 1978-07-11 Donaldson Company, Inc. Automatic dumping roof drill dust collector
JPS57161011A (en) * 1981-03-30 1982-10-04 Sumitomo Metal Ind Ltd Temperature controlling method for blast furnace gas
CN205598855U (en) * 2016-04-19 2016-09-28 象山逸迪电子科技有限公司 Compound dust collecting equipment of modified
CN205796849U (en) * 2016-06-07 2016-12-14 爱普特聚合物江苏有限公司 A kind of dust arrester
CN106731271A (en) * 2017-01-10 2017-05-31 成都佳美嘉科技有限公司 Building construction dust arrester
CN106731325A (en) * 2016-11-16 2017-05-31 国家电网公司 For the energy-conservation wind curtain type ash bucket system of deduster
CN107138014A (en) * 2017-06-30 2017-09-08 应光森 A kind of dust arrester for interior architecture
CN206793319U (en) * 2017-06-12 2017-12-26 江苏三恒科技股份有限公司 Packaged type mine dedusting system
CN206853380U (en) * 2017-06-19 2018-01-09 孟宪强 A kind of construction site dust arrester
CN207260056U (en) * 2017-07-08 2018-04-20 侍望 A kind of road dedusting heat sink in construction site
CN207734768U (en) * 2017-11-11 2018-08-17 廊坊市碧水源环保设备有限公司 A kind of exhaust gas oxidation catalysis equipment
CN207831390U (en) * 2017-12-30 2018-09-07 天津云白环境设备制造有限公司 A kind of durable heat preservation flue
CN207987853U (en) * 2018-03-21 2018-10-19 王小明 A kind of construction site dust suppression vehicle
CN108837640A (en) * 2018-07-03 2018-11-20 中铁建设集团有限公司 A kind of construction cleaning dust remover
CN208294555U (en) * 2018-06-06 2018-12-28 永春县众创科技有限公司 A kind of Tunnel Engineering dust-extraction unit

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4099937A (en) * 1976-11-19 1978-07-11 Donaldson Company, Inc. Automatic dumping roof drill dust collector
JPS57161011A (en) * 1981-03-30 1982-10-04 Sumitomo Metal Ind Ltd Temperature controlling method for blast furnace gas
CN205598855U (en) * 2016-04-19 2016-09-28 象山逸迪电子科技有限公司 Compound dust collecting equipment of modified
CN205796849U (en) * 2016-06-07 2016-12-14 爱普特聚合物江苏有限公司 A kind of dust arrester
CN106731325A (en) * 2016-11-16 2017-05-31 国家电网公司 For the energy-conservation wind curtain type ash bucket system of deduster
CN106731271A (en) * 2017-01-10 2017-05-31 成都佳美嘉科技有限公司 Building construction dust arrester
CN206793319U (en) * 2017-06-12 2017-12-26 江苏三恒科技股份有限公司 Packaged type mine dedusting system
CN206853380U (en) * 2017-06-19 2018-01-09 孟宪强 A kind of construction site dust arrester
CN107138014A (en) * 2017-06-30 2017-09-08 应光森 A kind of dust arrester for interior architecture
CN207260056U (en) * 2017-07-08 2018-04-20 侍望 A kind of road dedusting heat sink in construction site
CN207734768U (en) * 2017-11-11 2018-08-17 廊坊市碧水源环保设备有限公司 A kind of exhaust gas oxidation catalysis equipment
CN207831390U (en) * 2017-12-30 2018-09-07 天津云白环境设备制造有限公司 A kind of durable heat preservation flue
CN207987853U (en) * 2018-03-21 2018-10-19 王小明 A kind of construction site dust suppression vehicle
CN208294555U (en) * 2018-06-06 2018-12-28 永春县众创科技有限公司 A kind of Tunnel Engineering dust-extraction unit
CN108837640A (en) * 2018-07-03 2018-11-20 中铁建设集团有限公司 A kind of construction cleaning dust remover

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112316631A (en) * 2020-10-14 2021-02-05 山东天智信息科技有限公司 Organic waste gas treatment device
CN112316631B (en) * 2020-10-14 2022-10-25 山东天智信息科技有限公司 Organic waste gas treatment device

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