CN201128620Y - Gas-water spray humidifying dust removing apparatus - Google Patents

Gas-water spray humidifying dust removing apparatus Download PDF

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Publication number
CN201128620Y
CN201128620Y CNU2007200322513U CN200720032251U CN201128620Y CN 201128620 Y CN201128620 Y CN 201128620Y CN U2007200322513 U CNU2007200322513 U CN U2007200322513U CN 200720032251 U CN200720032251 U CN 200720032251U CN 201128620 Y CN201128620 Y CN 201128620Y
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CN
China
Prior art keywords
water
gas
control box
dust
air
Prior art date
Application number
CNU2007200322513U
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Chinese (zh)
Inventor
刘福民
Original Assignee
刘福民
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Priority to CNU2007200322513U priority Critical patent/CN201128620Y/en
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Publication of CN201128620Y publication Critical patent/CN201128620Y/en

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Abstract

The utility model discloses a gas-water spray humidifying dust removing device used for a conveying belt which includes a material conveying belt; a gas spray nozzle, a material flow detector, a bug dust concentration monitor and an electric control box which are mounted at the dust raising point of the material conveying belt; the material flow detector, the bug dust concentration monitor and a gas-water control box are connected with the electric control box through a signal line; the gas spray nozzle is respectively provided with a branch gas pipeline and a branch water pipeline; the peripheries of the branch gas pipeline and the branch water pipeline are provided with the gas-water control box; wherein, the branch gas pipeline is connected with a gas compressor through a gas branch pipeline with a filter device; the branch water pipeline is communicated with a main water supply pipeline through a water branch pipeline with a filter device. The running of the whole device is controled by the electric control box. The utility model improves the operational rate and the automatization degree of the gas-water spray humidifying dust removing device, effectively reduces the bug dust concentration in the running environment of a material conveying system, protects the body health of a running operator, being capable of realizing unattended control and reduces the working load of the operator simultaneously.

Description

The air water spraying humidification dust collector that is used for belt conveyor
Technical field
The utility model relates to the air water spraying humidification dust collector of belt conveyor, particularly a kind of air water spraying humidification dust collector that is used for bulk material by the belt course of conveying.
Background technology
In commercial production, the use of bulk materials such as ore, coal, limestone, in most cases adopt belt conveyor to carry, particularly a large amount of use such as thermal powerplant, cement mill, chemical plant, coke-oven plant, steel plant coal, limestone etc. are as the units of raw material or fuel, and its belt convey materials amount is bigger.In this process, because belt carries transfer point place sealing difficulty bigger, in operational process, cause dust from flying, the gross pollution site environment influences the ordinary production operation, even the harm operations staff's is healthy.
In recent years, enhancing along with people's environmental consciousness, country is to the further increasing of environmental demands dynamics, each manufacturing enterprise is also actively taking measures, multi-form dust collector is installed, be used for the dedusting of material conveying process, but adopt the mono-sack cleaner mostly, electrostatic precipitator, wet dust collector etc., the efficiency of dust collection of these dust collectors is higher, but the seizure dust is not thorough, easily produce the reentrainment of dust of operation field, common situation be dusting equipment in normal operation, and that the transfer point place is still dust is bigger, this just need come assisted dust-collecting by means of other forms.Water spraying device has also been installed additional in some producer; this traditional water spraying device is generally with the materials flow signal; the belt run signal realizes the interlock spraying; perhaps directly come manual control according to the needs at scene by the operations staff; the drawback of its mode is to control according to the needs at scene the switch of atomising installation; as long as on belt startup or the belt material is arranged; the water spray that system does not just stop; usually can cause water spray excessive; cause load-transfer device to skid; the breakdown operation environment; shorten service life of equipment, wet excessively simultaneously coal dust or ore can increase energy consumption again, reduce combustion efficiency and production efficiency.
Along with development of science and technology, traditional water spraying device drawback is more and more obvious, is necessary to do further optimization and improves.The major equipment that occur this period has: the automatic water spraying device of mechanical type, steam spray dust collector etc., the deflector chute of its installation site also develops into double-deck negative pressure cavity deflector chute by individual layer.These devices still exist water consumption excessive, can't select deficiency such as humidification amount according to the actual moisture of material, particularly adopt steam spray, most of users are difficult to this mode of employing owing to be subjected to the restriction of on-site steam source.
Be applicable to that dusting equipment in the bulk material belt course of conveying by the difference of applying working condition, can reduce following two types:
1, adopt modes such as bag-type dust, water bath dust-removing, the deflector chute of its installation site adopts the double-deck suction type deflector chute of sealed type, this type for the user that goes into operation owing to be subjected to the site space position limit, quantities is relatively large, difficult the realization can adopt newly-built system, but investment cost is higher.
2, air water atomising installation, this pattern require to utilize pressurized air that water smoke is further atomized, and make spraying granule more tiny, combine with dust granules easilier, and then reach the dedusting purpose.Utilize this constructional device, can use separately, also can cooperate other pattern dust exhaustors uses such as bag-type dust removal system, its arrangement is flexible, all can adopt for newly-built and transformation project.
Summary of the invention
Can't control water spraying device and unfavorable defective of dust-laying effect or deficiency according to the on-the-spot needs of conveyer at what above-mentioned existing water spraying device existed, the purpose of this utility model is, a kind of belt conveyor air water spraying humidification dust collector that is used for is provided, this device can improve the water atomization effect, reduce water consumption, operational percentage and control degree of automation height thereof, in the dust concentration in reducing the delivery system operating environment, effectively the surperficial aqueous ingredients of control delivery system material prevents that belt conveyor from skidding.
In order to realize above-mentioned task, the utility model is taked following technical solution:
A kind of belt conveyor air water spraying humidification dust collector that is used for, comprise material conveyer belt, it is characterized in that, airborne dust point place at material conveyer belt is equipped with gentle spray painting head, flow detector, dust concentration monitor and electric control box, and flow detector is connected with electric control box by signal wire (SW) with the gentle water management case of dust concentration monitor;
Gas-distributing pipe road and distributive pipe road are arranged respectively on the aerosol shower nozzle, and gas-distributing pipe road and periphery, distributive pipe road are provided with the air water control box; Wherein, the gas-distributing pipe road links to each other with air compressor by the gas branch pipe road of band filtering installation; The distributive pipe road is communicated with the water supply main line by the water by path of band filtering installation.
Some other characteristics of the present utility model are, described air water control box comprises water solenoid valve, pneumoelectric magnet valve, pressure regulating valve, water pressure gauge, air-pressure gauge, water route manual ball valve and gas circuit manual ball valve, wherein, the water route manual ball valve is the bypath system of water lines, and the gas circuit manual ball valve is the other pipeline system of air pipe.
Described electric control box is provided with the PLC control unit, is used to gather the start stop signal of material conveyer belt, the materials flow signal of flow detector and the dust concentration signal of dust concentration monitor, and then control air water control box.
Described water route manual ball valve and gas circuit manual ball valve are respectively applied for when the gentle electromagnetic valve of water solenoid valve overhauls or manually controls and use.
During the work of the utility model aerosol dust collector, flow detector, dust concentration monitor are delivered to PLC control unit in the electric control box with materials flow signal and dust concentration signal by signal wire (SW), through PLC control unit and then control air water control box, open or close gas, water solenoid valve, make aerosol shower nozzle spray for dust suppression, the pressurized air of utilizing air compressor to produce, the water smoke water particle diameter that makes the aerosol shower nozzle produce is 5~20um, littler than dust granularity, dust can be adsorbed better, dust can be suppressed in the very first time that dust produces.Easilier combine, reach best dust removing effects, can not produce material and cross wet or slipping of the belt phenomenon with dust granules.The operating mode of complexity has more using value in the time of adapting to the belt convey materials.
Electric control box is according to the start stop signal of material conveyer belt, can also instruct the air water control box to move automatically, finish the some spray of empty material load-transfer device, be used for eliminating the reentrainment of dust that produces in the material conveyer belt shutdown process, by moistening fully, halt point sprays until the whole piece material conveyer belt.Its some spray period can carry out the scene and set according to the speed and the length of material conveyer belt.After the some spray finished, device can be automatically converted to the materials flow mode, and when the materials flow signal, control air water control box is started working, and carries out spray dust-arrest.In this process, the dust concentration monitor is also started working, and records one time dust concentration per 5 seconds, and when continuous 3 aviation values during less than setting value, system's SELF CL stops spraying; When continuous 3 aviation values during greater than setting value, system still moves by coal current control mode.More than automatically operation stop up to material conveyer belt, after material conveyer belt quit work, device control air water control box delay working was to suppress the belt reentrainment of dust.
The utility model can be used in the dedusting of bulk materials such as load-transfer device fortune coal, limestone, iron ore, also can make full use of existing water spraying device and transform.Simultaneously, guaranteeing that dust concentration is up to standard, the surperficial aqueous ingredients of actv. control convey materials prevents that material conveyer belt from skidding, and in the water-saving while, has prolonged the service life of equipment.This device can be realized unmanned, and the degree of automation height has reduced operations staff's work capacity.
Description of drawings
Fig. 1 is a functional block diagram of the present utility model;
Fig. 2 is the air water control box schematic diagram in the utility model;
Fig. 3 is a structural representation of the present utility model.
Label among the figure is represented respectively: 1. mass transport belt, 2. aerosol shower nozzle, 3. flow detector, 4. dust concentration monitor, 5. electric control box, 6. the water by path of band filtering installation, 7. the gas branch pipe road of band filtering installation, 8. air compressor, 9. air water control box, 10. water supply main line, 11. the gas-distributing pipe road, 12. distributive pipe roads, 13. water route manual ball valves, 14. water pressure gauge, 15. air-pressure gauges, 16. pneumoelectric magnet valves, 17. water solenoid valve, 18. pressure regulating valves, 19. gas circuit manual ball valves.
The utility model is described in further detail below in conjunction with accompanying drawing and principle of work.
The specific embodiment
Referring to Fig. 1,2,3, the air water spraying humidification dust collector that is used for belt conveyor of the present utility model, comprise material conveyer belt 1, airborne dust point place at material conveyer belt 1 is equipped with gentle spray painting head 2, flow detector 3, dust concentration monitor 4 and electric control box 5, and flow detector 3 is connected with electric control box 5 by signal wire (SW) with dust concentration monitor 4 gentle water management casees 9;
Gas-distributing pipe road 11 and distributive pipe road 12 are arranged respectively on the aerosol shower nozzle 2, and gas-distributing pipe road 11 and 12 peripheries, distributive pipe road are provided with air water control box 9; Wherein, gas-distributing pipe road 11 links to each other with air compressor 8 by the gas branch pipe road 7 of band filtering installation; Distributive pipe road 12 is communicated with water supply main line 10 by the water by path 6 of band filtering installation.
Air water control box 9 comprises water solenoid valve 17, pneumoelectric magnet valve 16, pressure regulating valve 18, water pressure gauge 14, air-pressure gauge 15, water route manual ball valve 13 and gas circuit manual ball valve 19, wherein, water route manual ball valve 13 is the bypath system of water lines, and gas circuit manual ball valve 19 is the other pipeline system of air pipe.Gas, water bypath system are used for using when electromagnetic valve overhauls or manually controls.
Flow detector 3 in the device, dust concentration monitor 4 and mass transport belt 1 start stop signal can be sent to electric control box 5 by signal cable.The unlatching of the acquisition of signal in the total system working process, execution pneumoelectric magnet valve 16, water solenoid valve 17 is finished automatically by electric control box 5 controls.
Principle of work of the present utility model is, electric control box 5 in the device adopts PLC unit control apparatus and 1 interlock of mass transport belt, receives the materials flow signal and the dust monitoring signal of the run signal of mass transport belt 1 and flow detector 3,4 transmission of dust concentration monitor by the PLC in the control box.
When mass transport belt 1 starts for the first time, pneumoelectric magnet valve 16 and water solenoid valve 17 in the control air water control box 9 are opened, 2 work of aerosol shower nozzle, the surface that can before materials flow arrives, drench the mass transport belt, stick to the airborne dust that the granular material on the belt causes when eliminating task, realize the spray dust-arrest when empty belt started for the first time.This work-hours can be adjusted by the PLC in the electric control box 5, satisfies the needs of actual condition.After the first time, dust suppression was finished, electric control box 5 changed the mode of operation according to materials flow and dust concentration control automatically into.
When entering the materials flow mode, as long as mass transport belt 1 starts, and there is streams out-of-date on the mass transport belt, flow detector 3 just is sent to electric control box 5 with detected materials flow signal, open the water solenoid valve 16 gentle electromagnetic valves 17 of relevant position by PLC control, aerosol shower nozzle 2 carries out spray for dust suppression.When the mass transport belt stopped feeding, water solenoid valve 16 gentle electromagnetic valves 17 were closed, and aerosol shower nozzle 2 stops water spray.When the selecting for use of this mode can prevent to stop because of materials flow, materials flow that aerosol shower nozzle 2 causes to the mass transport belt water spray of sky and binding material belt conveyor and head got rid of the sewage phenomenon.
When moving with the dust concentration mode, after mass transport belt 1 start stop signal is received in the PLC unit of electric control box 5, open pneumoelectric magnet valve 16 and water solenoid valve 17 in the air water control box 9, aerosol shower nozzle 2 is sprayed water a few minutes, to eliminate reentrainment of dust, water spraying time is decided according to the length of mass transport belt, and can make amendment by electric control box " setting of some water spraying time ".Because of reentrainment of dust accounts for the overwhelming majority to the bigger respirable dust of human body harm, therefore need to administer emphatically.Behind the setting-up time, stop above-mentioned spray.
After 2-3 minute, the dust concentration monitor 4 at mass transport belt place 1 records one time dust concentration per 8 seconds, and (measured value is generally 5mg/m during greater than setting value when continuous 3 times aviation value 3, and adjustable), the materials flow signal of sending here in conjunction with material belt conveyor signal and flow detector 3 is opened the water solenoid valve 16 gentle electromagnetic valves 17 in the air water control box 9, and aerosol shower nozzle 2 carries out the spray for dust suppression operation, and dust concentration detector 4 is closed simultaneously.Air water control box 9 cuts out electromagnetic valve 16 gentle electromagnetic valves 17 after 10-15 minute, and aerosol shower nozzle 2 stops water spray, delays time after 2-3 minute, starts dust concentration detector 4 once more, carries out powder concentration measurement.The circulation said procedure stops or the materials flow interruption until mass transport belt 1.
Owing to contain impurity in pressurized air and the water,, filter and gate valve be housed in system in order to guarantee the service life of electromagnetic valve; On the air water pipeline, be respectively equipped with the bypass manual ball valve,, guarantee simultaneously under the solenoid valve failure situation or during maintenance, device can normally use to satisfy the on-site manual action need.
The belt conveyor air water spraying humidification dust collector that is used for of the present utility model shows following technical characterstic:
1. degree of automation height
The electric control box 5 of device is by mass transport belt start stop signal, materials flow signal, the dust concentration signal of PLC control unit to real-time collection, carry out analysis and judgement, 2 work of control aerosol shower nozzle, the work of realization actv., the operational percentage of device and the degree of automation of control have been improved, system can realize unattended duty, has reduced operations staff's work capacity
2. according to actual condition, process optimization is avoided blindly water spray
Traditional water spraying device lacks real-time monitoring airborne dust point dust concentration means, in operational process, as runs into the big or airborne dust of material moisture content hour, easily causes blindly water spray, produces mass transport slipping of the belt phenomenon, influences the normal operation of material belt conveyor.And this device is guaranteeing that dust concentration is less than 5mg/m 3The time, can effectively control the aqueous ingredients on material surface, prevent the mass transport slipping of the belt, prolong service life of equipment.
3. adopt the air water atomizing, dust-laying effect is better
Because be suspended in airborne dust diameter about 8um~30um, and the water smoke that traditional single water spray produces is not easy to the dust granules combination at 20um~30um, dust-laying effect is poor.And this device adopts is that low-pressure water and low-pressure air produce the very big water smoke of density by the aerosol shower nozzle, and the water particle diameter is at 5um~20um, and is littler than dust granules, easier absorption, thereby dust-laying effect is obvious.
4. other benefits
Because traditional water spraying device lacks rational design, in use, can cause the material surface moisture higher, influences the subsequent production technological process.With the defeated coal of thermal powerplant is example, if in material conveying process, blindly spray water, may cause pulverized coal preparation system chute blockage and long-pending coal phenomenon, the existence of moisture in coal simultaneously reduces the combustible material of coal relatively, when coal combustion, water evaporates also needs to absorb heat, finally causes the actual cal val of coal to reduce.After using this device, can avoid the excessive phenomenon of moisture, estimate that coal combustion per ton reduces cal val loss about 20%.
By above analysis as can be known, adopt the utility model device, not only can guarantee the effective dust suppression in the material conveying process, and the conserve water resource, service life of equipment prolonged.Under the prerequisite of effectively improving working environment, improved user's economic benefit.

Claims (3)

1. air water spraying humidification dust collector that is used for belt conveyor, comprise material conveyer belt (1), it is characterized in that, airborne dust point place at material conveyer belt (1) is equipped with gentle spray painting head (2), flow detector (3), dust concentration monitor (4) and electric control box (5), and flow detector (3) is connected with electric control box (5) by signal wire (SW) with the gentle water management case of dust concentration monitor (4) (9);
Gas-distributing pipe road (11) and distributive pipe road (12) are arranged respectively on the aerosol shower nozzle (2), and gas-distributing pipe road (11) and periphery, distributive pipe road (12) are provided with air water control box (9); Wherein gas-distributing pipe road (11) link to each other with air compressor (8) by the gas branch pipe road (7) of band filtering installation; Distributive pipe road (12) is communicated with water supply main line (10) by the water by path (6) of band filtering installation.
2. the air water spraying humidification dust collector that is used for belt conveyor as claimed in claim 1, it is characterized in that, described air water control box (9) comprises water solenoid valve (17), pneumoelectric magnet valve (16), pressure regulating valve (18), water pressure gauge (14), air-pressure gauge (15), water route manual ball valve (13) and gas circuit manual ball valve (19), wherein, water route manual ball valve (13) is the bypath system of water lines, and gas circuit manual ball valve (19) is the other pipeline system of air pipe.
3. the air water spraying humidification dust collector that is used for belt conveyor as claimed in claim 1, it is characterized in that, described electric control box (5) is provided with the PLC control unit, be used to gather the start stop signal of material conveyer belt (1), the materials flow signal of flow detector (3) and the dust concentration signal of dust concentration monitor (4), and then control air water control box (9).
CNU2007200322513U 2007-07-13 2007-07-13 Gas-water spray humidifying dust removing apparatus CN201128620Y (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101829466A (en) * 2010-03-19 2010-09-15 无锡市华能电力机械有限公司 Negative pressure spray soaking dust collection device
CN102514910A (en) * 2011-11-23 2012-06-27 巴彦淖尔盛安化工有限责任公司 Method for preventing emulsion explosive from bonding on surface of conveyor belt
CN103057918A (en) * 2012-12-31 2013-04-24 上海烟草集团有限责任公司 Automatic atomizing humidifying dust-suppression conveyer for tobaccos
CN103373590A (en) * 2012-04-26 2013-10-30 宝山钢铁股份有限公司 Rubber belt load shutdown automatic controlling watering device and rubber belt load shutdown watering control method
CN103618198A (en) * 2013-11-30 2014-03-05 浙江海宁普赛自动化科技有限公司 Powder removing device for producing power plug wires and using method thereof
CN103699092A (en) * 2013-12-24 2014-04-02 北京风华时代环境工程有限公司 Spray dust suppression system
CN103920351A (en) * 2014-04-24 2014-07-16 绥中捷创科技有限公司 Dust-falling dry fog generating device
CN104085661A (en) * 2014-07-08 2014-10-08 上海佳维特机械设备有限公司 Material weight sensing system for controlling output of liquid films and control method
CN104528414A (en) * 2014-12-31 2015-04-22 富强 Coal transportation anti-freezing-adhering system
CN104759172A (en) * 2015-04-22 2015-07-08 福州汇智集佳电子技术有限公司 Efficient haze removal method
CN104971578A (en) * 2015-06-12 2015-10-14 华南理工大学 Deduster airduct intelligent spray settlement device
CN105056667A (en) * 2015-08-05 2015-11-18 宁波海辰天力机械制造有限公司 Pressure-stabilizing aerial fog distributor
CN105921481A (en) * 2016-05-18 2016-09-07 神华集团有限责任公司 Vibration sieve dust settling device and vibration sieve dust removal system
CN105999920A (en) * 2016-01-27 2016-10-12 中石化石油工程机械有限公司第四机械厂 Ash discharge opening purification device
CN106429539A (en) * 2016-09-22 2017-02-22 华中科技大学 Distributed dust settling control system with fire coal conveyer belt
CN108746151A (en) * 2018-05-20 2018-11-06 苏州沃森优金电子科技有限公司 A kind of disassembling apparatus of electronic component
CN110652813A (en) * 2019-10-08 2020-01-07 合肥合安智为科技有限公司 Micron-sized dry fog dust suppression system

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101829466B (en) * 2010-03-19 2012-04-18 无锡市华能电力机械有限公司 Negative pressure spray soaking dust collection device
CN101829466A (en) * 2010-03-19 2010-09-15 无锡市华能电力机械有限公司 Negative pressure spray soaking dust collection device
CN102514910A (en) * 2011-11-23 2012-06-27 巴彦淖尔盛安化工有限责任公司 Method for preventing emulsion explosive from bonding on surface of conveyor belt
CN103373590A (en) * 2012-04-26 2013-10-30 宝山钢铁股份有限公司 Rubber belt load shutdown automatic controlling watering device and rubber belt load shutdown watering control method
CN103057918B (en) * 2012-12-31 2015-04-08 上海烟草集团有限责任公司 Automatic atomizing humidifying dust-suppression conveyer for tobaccos
CN103057918A (en) * 2012-12-31 2013-04-24 上海烟草集团有限责任公司 Automatic atomizing humidifying dust-suppression conveyer for tobaccos
CN103618198A (en) * 2013-11-30 2014-03-05 浙江海宁普赛自动化科技有限公司 Powder removing device for producing power plug wires and using method thereof
CN103618198B (en) * 2013-11-30 2015-12-23 浙江海宁普赛自动化科技有限公司 For the production of bugduster apparatus and the using method thereof of power plug wire
CN103699092A (en) * 2013-12-24 2014-04-02 北京风华时代环境工程有限公司 Spray dust suppression system
CN103920351A (en) * 2014-04-24 2014-07-16 绥中捷创科技有限公司 Dust-falling dry fog generating device
CN104085661A (en) * 2014-07-08 2014-10-08 上海佳维特机械设备有限公司 Material weight sensing system for controlling output of liquid films and control method
CN104085661B (en) * 2014-07-08 2016-08-17 柏美迪康环境工程(上海)股份有限公司 A kind of weight of material induction system controlled for liquid film output and control method
CN104528414A (en) * 2014-12-31 2015-04-22 富强 Coal transportation anti-freezing-adhering system
CN104528414B (en) * 2014-12-31 2016-08-17 富强 The antifreeze viscous system of Coal Transport
CN104759172A (en) * 2015-04-22 2015-07-08 福州汇智集佳电子技术有限公司 Efficient haze removal method
CN104971578A (en) * 2015-06-12 2015-10-14 华南理工大学 Deduster airduct intelligent spray settlement device
CN105056667A (en) * 2015-08-05 2015-11-18 宁波海辰天力机械制造有限公司 Pressure-stabilizing aerial fog distributor
CN105999920A (en) * 2016-01-27 2016-10-12 中石化石油工程机械有限公司第四机械厂 Ash discharge opening purification device
CN105921481A (en) * 2016-05-18 2016-09-07 神华集团有限责任公司 Vibration sieve dust settling device and vibration sieve dust removal system
CN105921481B (en) * 2016-05-18 2018-09-14 神华集团有限责任公司 Vibrating screen dust settler and vibrating screen dust pelletizing system
CN106429539A (en) * 2016-09-22 2017-02-22 华中科技大学 Distributed dust settling control system with fire coal conveyer belt
CN108746151A (en) * 2018-05-20 2018-11-06 苏州沃森优金电子科技有限公司 A kind of disassembling apparatus of electronic component
CN110652813A (en) * 2019-10-08 2020-01-07 合肥合安智为科技有限公司 Micron-sized dry fog dust suppression system

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