Introduction: the importance of dust removal

Dust is influence enterprise safety in production, harm to workers health and cause damage to the environment. High pressure spray dusting dustproof design, one of dustproof design content for the enterprise, belongs to the technical measures of environmental protection, the purpose is to solve the enterprise production of labor hygiene and environmental sanitation. Complete spray dusting and good dust, dust management is to carry out the party's production safety policy, to ensure normal production and one of the important conditions of sustainable of the enterprises.

 

L in order to meet the needs of human comfort to work and live

1 purpose, meaning and the role of dust

Dust is influence enterprise safety in production, one of the disasters harm to workers health. Dustproof aims to solve the enterprise production of labor health and production safety. Complete spray dusting and good dust, dust management is to carry out the party's production safety policy, protection of the normal production of mine for one of the important conditions. To fully implement the safe production of "prevention first, safety first" principle, effect a radical cure dust hazard, to eliminate environmental pollution accident, safeguard workers' life safety and body health. Spray water spraying dust can effective dust, thus reducing the incidence of pneumoconiosis, reduce dust concentration and maximum reduce the dust harm to the environment. In addition can also clear vision, facilitate the operations, reduce mechanical wear and prolong the service life of precision instruments.

2 enterprise mainly producing dust source

With the improvement of mechanization, high efficiency, high power hammer machine, boring machine, conveyor, and the use of local ventilation equipment, make the enterprise face, raw material factory/conveyor belt production increased, the increase of producing dust capacity, dust source areas significantly increased the dust concentration in air. The main producing dust source are mining, loading and unloading port, conveyor belt, raw material warehouse, production and transportation of equipment of the transfer point weeks wall of dust secondary dust, etc. Among them, the largest is the machinery of producing dust capacity face and raw material warehouse face. The second is the feed opening each transfer point. So much of the amount of dust source dispersion across the face and the factory, make the enterprise face premises and the dust concentration of serious overrun. The high concentration, high dispersion of dust seriously affect worker's health, threatening the safe production of the enterprise. Therefore, effective measures must be taken to control enterprises face, the dust source of producing dust capacity, the dust concentration in the air to make the factory specified value.

3 high pressure spray dust machine principle

High pressure spray cooling dust is motor driven piston pump will with super filter to purify the treated water pressurized to 7 mpa, through the pipe resistance to high pressure thick wall will be pressurized water to the "super fine" nozzle, and nozzle), to a certain flow rate under certain pressure, by rotating or shock, make water atomized into fine water mist sprayed in the air, its role is to catch dust: 1) within the scope of the mist effect, high speed flow of water molecules collide with the fly ash after contact, dust particles were wet, sinking under the action of gravity; 2) high-speed flow of mist dust air attract the fog around the body wet sinking; 3) will have sinks down the dust particles of wet bonding, make it difficult to float in the sky, and the effect of dust - cooling - humidifying! Spray collection coefficient as high as 99%!

Four spray spray design

1) the discharging mouth spray dusting.

Discharge opening of the spray system is divided into inside outside spray and spray in two ways. At present most serious dust area comes from the discharge outlet. Because the discharging mouth in weight and environmental wind speed driving under the influence of the dust float in the sky, the discharging mouth location shall be installed around 10 nozzle, nozzle according to the specific site and environmental factors to adjust the quantity and installation location of the site. Spray point after installation can effectively reduce the generation of dust, so that the dust wetting settlement.

2) spray between transmission belt.

Conveyor belt at work, translation and transmission process to produce large amounts of dust, due to the ventilation section and large wind speed at the same time, from the workspace mine dust quantity, bracket below the top beam and side panel should install spray. Inflection point below the nozzle to the upper roof beam, effective dust. Side panel of the nozzle to gob side, in order to control the caving process produces a large number of dust spreading work zone.

3) raw material workshop spray.

Raw material workshop for local spray dust method. Adding half seal cover in raw material workshop, enclosure installation of nozzle, to eliminate the dust float in the sky of, lower the mining working face dustiness. In order to ensure the sealing effect, seal cover into the mouth, the raw material workshop installation half block type light air curtain, light air curtain made of cloth of ram.

4) vehicles and after loading mouth spray

Vehicles pass is to avoid for vehicles passed into dust, reduce dust, of producing dust capacity should be the key to spray dust. Spray dustproof design, mainly from the vehicles after working face, loading of the spray dust at the working face. Solve the enterprise production of labor health and safety. To fully implement the safe production of "prevention first, safety first" principle, effect a radical cure dust hazard, put an end to safety accidents, security miner's life safety and body health. Spray dusting dust effectively, so as to reduce the incidence of pneumoconiosis, reduce coal dust concentration, reduce the possibility of coal dust explosion. In addition can also clear vision, to facilitate the operations.

Second, the high pressure spray dust removal equipment is introduced:

2.1 why do you choose:

The following reason makes constant blue high pressure spray dusting equipment a energy-saving products:

L constant blue companies in the development of high pressure spray dust removal system, already will ensure compliance with high standards of health as an important part of product design;

L it is suitable for a regional or more multiplex, directly or indirectly spray dusting.

L it can make the system the use of water in the best state, according to the need for flow control;

L: low energy consumption per hour atomization of 1 kg of water electric power consumption is only 8-10 w directly;

L high pressure micro fog is not used in adiabatic spray, dust removal equipment can also be applied to the adiabatic cooling;

L maintenance cost is very low, running 2000 hours after the need to change the pump oil, running 5000 hours after the need to replace the valve.

2.2 constant blue high pressure spray characteristics of dust removal equipment is introduced:

L constant blue high pressure spray equipment using high-pressure plunger displacement pump compression demineralize water; High pressure water flow through the nozzle under a certain pressure (50-70 bar) to spray water mist, the need for compressed air;

L constant blue high pressure spray dust removal equipment with flexible operation features, it can be for one or more areas to spray directly or indirectly. My company can provide different spray quantity demand of standard models (from 100 to 2600 kg/h), suitable for large adjustment range of water consumption volume pump load;

L fog of grain: 3 ~ 10 um fog particles, YouRuShan cloud and mist, spray directly up to nearly 100% efficiency in an indoor, can quickly absorbed by the air and spray dust removal effect is superior.

L energy saving: very low power consumption: spray 1 kg of water per hour of direct electric power consumption is only 8-10 w, which also includes the production of reverse osmosis water system outside the power consumption. Further evidence that the stand high pressure micro fog humidifier is an energy-saving products;

L continuous accommodative: can realize continuous control time on and off.

L easy maintenance: just replace the high-pressure plunger pump lubricating oil regularly.

L reliable: ABB motor as power components with addition plunger pump, Italian original package imports can continuous operation 24 h, nozzle and the pipe fittings, unpowered vulnerable parts, in the case of a poor environment will not be damaged;

L who high hygiene standards: water seal and not recycled, will not lead to bacterial breeding;

Three, high-pressure spray dust removal system working principle and performance advantages:

3.1 constant blue working principle of high pressure spray dust removal equipment

High pressure spray equipment abroad, also called cold fog boiler equipment can produce a small nozzle atomized droplets. High-pressure plunger pump to pure water or demineralized water pressure to 7 mpa, by making use of the potential energy in the process of water transfer water mist into tiny drops of water, water flow velocity of the spray nozzle export will be around 100 m/s. By making the high speed rotating jet stream or in relation to the firing pin processed into special shape collision, spray droplets will be broken to spray Sauter in 3 ~ 10 microns in diameter droplets spray into the air to absorb the dust in the air, water mist in the air, from a liquid into a gas. This is the spray process of high pressure spray device.

3.2 constant blue of high-pressure spray dust removal system parts and working performance advantages

】 【 pump station system

L constant blue high pressure spray dusting equipment imported high-pressure plunger pump adopts industrial-grade integration, namely direct pump system (motor and pump head with a direct-connect shaft), maintain good concentricity, and the dynamic balance of high reliability;

L constant blue spray equipment, dust removal pump station system supply water flow and pump speed is proportional to the relationship between strictly, the control system can adjust is well controlled by adjusting the motor speed of supply water flow. Based on this feature, the spray dusting equipment can be adjusted at any time according to the changes in the environment of water mist output, and maintain a system of constant voltage output, so the system is stable and reliable;

L constant blue host appearance use of foreign industrial design, beautiful appearance design atmosphere;

L constant blue high pressure pump station imported Italian ceramic high-pressure plunger pump.

L set inside the multi-channel sensor, conditions for the implementation of monitoring system of pumping station, it can realize automatic water shortage protection shutdown alarm.

【 atomization nozzle 】

L constant blue can provide backwash type, straight type, stainless steel materials, ceramic materials, and other forms, a variety of material of the nozzle, can be applied to various USES and water quality;

L unique card sleeve type pipeline system for connection, easy installation and easy maintenance.

 

Three, selection of high pressure spray dusting system design:

Area of 5.1 size:

Dust area: 150 meters within the scope of the specific installation according to the actual situation to adjust.

5.2 the review of the nozzle number calculation:

Nozzle number according to the 1 meter location a spray nozzle, a total investment about 150 spray nozzle. Look at the site specific installation.

Spray the host on the number of options: 5.2 as well as the advantages and disadvantages:

According to the factory area length and width, I company recommends using a spray dusting equipment specific analysis is as follows:

Choose a set of spray dusting equipment advantages:

(1) : the average distribution of the nozzle, each host with 150 nozzle, there would be no motor and pump overload phenomenon, now there will be no pipeline vibration, reduce the wear of the pump, improve the service life of the motor and pump, usually can use 5 to 7 years!

 

5.2 high pressure spray in addition to flavor equipment type selection of main technical parameters:

 

The serial number system name or specifications and technical index

A high-pressure spray dusting the HJPW - 5050 traffic: 900 kg/h

Power supply: 380 vac / 3 phase / 50 hz

Power: 3.0 kw

2 high pressure micro fog

Nozzle aperture 150 c: 0.3 mm;

When the fog particles: 7 mpa < 10 mm

Traffic: 4.92 kg/h

PE pipe diameter: 3 PE pipeline system Taiwan Φ 9.53 x 1

The biggest pressure: 160 bar

 

5.3 high pressure spray system configuration in addition to taste

The serial number number of the power unit

Spray quantity (kw/h)

(kg/h) sets

(a) high pressure spray host/specifications and spray unit control mode

1 1-1/2 - two-thirds - 3 3.0 1440 1 HJPW - 5050 time cycle control

 

5.4 high pressure spray dust removal system for water quality requirements:

In the process of using high pressure spray dust removal equipment, must be considered an important question: the purity of water supply.

Small nozzle aperture requirements of the pump inlet and proper strainer can be installed inside each nozzle. Common evaporation generally divided into turbulence and local evaporation, the minerals in the water, suspended solids, bath, slowly over time if not processing can form precipitate or scaling, usually at the edge of the nozzle orifice formed initially, then slowly blocked until completely blocking the nozzle, the nozzle to restore to the normal operation, chemical cleaning is required. I should be used based on the above reasons, spray dust removal equipment of the company's standard HP - 2 n efficient water treatment, treatment for high pressure spray equipment professional water in addition to taste.

L processing precision is: 0.01 microns.

 

5.5 about the installation

Humidifier need:

L connected to the main power supply: 380 vac / 3 phase / 50 hz;

L connected to the pure water system;

L connected spray dust removal system.

L connect tap water.

 

L connect drainage.

5.6 for routine maintenance

Daily maintenance work including:

L pump oil level check; Replace the water pump oil, change running about 2000 hours;

L running about 5000 hours to replace a piston and valve gasket;

L change the water filter cartridge (need 15 days need to change the front filter core once);

L check once a year and cleaning nozzle/water system;

Complete the proper operation of constant blue reference user manual.

 

 

Four, high pressure spray dusting equipment dedicated HP - 2 n biological water treatment instructions:

Can effectively remove the water, bacteria, fungi, bacteria, algae and other microorganisms, to ensure that won't because the water together and clogging the nozzle material, but also ensure the atomized particles spewed more does not contain harmful ingredients to human body, HP - 2 n biological water treatment by Shanghai constant blue company independent research and development with water treatment company.

HP - 2 n technical parameters:

(1) import pressure: 0.15-0.6 Mpa (2) the water consumption: < 0.01%

(3) working temperature: 1 ℃ - 45 ℃ (4) level of processing: 0.002 microns

5. Stainless steel shell/reverse osmosis biological membrane method and maintenance method: fully automatic reverse osmosis cleaning!

 

 

Spray dusting effect: