The dust removal system of the crusher is an indispensable part of the crushing industry. With the increasing emphasis on environmental protection, it is more and more important to reduce the dust in the crushing work environment. Many factories cannot meet the environmental protection requirements and are forced to closed, so every person in the crushing industry must pay attention to environmental protection, which highlights the importance of the dust removal system of the crusher.
What is a dust suppression system for crusher plant?
Mine dust is mainly composed of ore particles and other powders, which are divided into dry dust and wet dust in terms of state. During mining and subsequent processing, dust generation is mainly concentrated in the drilling and blasting process, crushing, screening and belt conveying, transportation, and transshipment.
A complete mine processing production line needs to go through the processes of crushing, screening, grinding, transportation, and aggregation. In each process, along with the fragmentation and movement of the ore, the fine particles will be gradually separated, resulting in more and more production. There is a lot of dust, so the dust removal system of the crusher is to solve these dusts.
Importance of dust suppression system for crusher plant?
There are many types of dust with different characteristics. In general, the smaller the particle size of the dust, the less likely it will settle in the air and be difficult to capture. With the flow of air, it will cause long-term large-scale pollution, and it will enter the deep respiratory tract with the air, which is extremely harmful to the human body. The global air pollution has reached a fairly common and serious level. Due to the unreasonable industrial layout and dense population, air pollution in cities, heavy industrial areas, and mining areas is particularly serious.
In addition, dust will also reduce product quality and machine working accuracy, thereby affecting production, causing economic losses, and even for some combustible mine dust, there will be explosion hazards. Crushing dust removal systems are used to deal with the dust generated by the process of perforation, rock drilling, blasting, shipping and crushing of open pit mining or underground mining of mine crushing.
These dusts will seriously pollute the working environment and the atmospheric environment. If there is no effective dust removal system for the crusher, the dust in the workplace will reach a terrible concentration, which can reach hundreds or thousands of milligrams. thousand milligrams. If the dust suppression system for crusher plant is used unreasonably, there will be big problems.
How does the dust suppression system for crusher plant work?
The dust generated in the mine production is collected by the dust removal system of the crusher. After being sucked into the dust suction duct, it enters the dust collector through the regulating butterfly valve and the air inlet duct. The dust will be retained outside the filter bag. After the fans and chimneys reach the standard, they are discharged into the atmosphere. In this way, the purpose of recovering dust and purifying exhaust gas can be achieved, and each emission index can also meet the emission requirements.
What does a dust suppression system for crusher plant generally consist of?
Main body: It consists of upper box, middle box, ash hopper assembly, access door and bracket
Dust collection and filtration system: It is mainly composed of filter bag, bag cage, flower plate assembly, ash hopper air inlet manual regulating valve, and air inlet distribution system
Blowing ash cleaning and ash unloading system: It is mainly composed of air storage bag (including oil-water separator, pressure regulating device), electromagnetic pulse valve, blowing pipe assembly and offline valve, air cannon for clearing blockage and star-shaped ash unloading valve.
Protection, control and detection system: It is mainly composed of bypass system, differential pressure device, material level gauge, thermometer, pressure detection device, pulse controller, and filter bag detection device.
Electronic control system: It is mainly composed of the main control cabinet, which includes the control part of the dust removal system of the crusher, and the installation position of the ash conveying control system, the pulse controller, and the filter bag leakage detection device are reserved.
How to install the dust suppression system for crusher plant?
Containment control. Seal the dust-generating point with a sealing cover, and try not to spread the dust in a wide range.
Eliminate the height potential difference. Hoppers, protective covers, and chutes of handling equipment, because the height potential energy difference generated by the drop of powder is the main reason for dust spillage and flying. The drop should be minimized, and the inclination angle of the chute should be reduced. Some closed rooms are best caused by Negative pressure, which is conducive to the collection of dust.
Wet dust removal and exhaust air dust removal. According to the cause of dust generation, countermeasures to control the source of dust can be formulated separately: setting up spray devices at the feeding port and belt transfer point, and controlling the amount of water to humidify the stone, which can greatly reduce dust pollution at the transfer point in the crushing workshop; When the ventilation point, especially the feeding point, is poorly ventilated, a centrifugal fan should be used to force ventilation to strengthen the dust discharge wind speed and air volume; when the belt is running to generate dust, use a bag filter to control the source of dust.
At each suction port, a fume suction hood is installed, and its function is to collect the floating dust, and transport it to the dust removal equipment through the negative pressure pneumatic conveying pipeline for filtering and dust removal treatment. According to the location and structure of on-site dust generation, the dust suction hood is reasonably arranged. Through the work of the dust collection hood, most of the dust containing dust can be collected and transported to the bag filter through the negative pressure system.
Dust suppression system for crusher plant, bag dust collector includes pattern plate, shell, filter parts, pulse injection system, controller, air bag and maintenance platform, which are installed on site. The provided negative pressure pneumatic dust removal system has perfect, Advanced high-efficiency filtration performance, and has the function of collection and automatic discharge.
Classification and application of dust suppression system for crusher plant?
- Common matching dust collectors are specially designed for machinery including elevators, mixers, feeders, reducers, filters, and dust collectors.
- Common grinding dust collectors are specially designed for mechanical equipment, including Raymond mills, ball mills, pulverizers, jet mills, stirring mills, and ultra-fine mills.
- Common crushing and dust removal systems are specially designed for mechanical equipment, including jaw crushers, hammer crushers, impact crushers, impact crushers, and cone crushers.
- Common ore washing dust collectors are specially designed for mechanical equipment including sand washing machines, drying equipment, and ore washing equipment.
- Common transport dust collectors are specially designed for mechanical equipment including loaders, conveyors, mining dump trucks, etc.
- Common ore dressing dust collectors are specially designed for mechanical equipment, including flotation equipment, magnetic separation equipment, gravity separation equipment, sand making machines, granulators, mixing tanks, and classifiers.
What are the working characteristics of the dust removal system of the vibrating crusher?
The dust removal system of the vibrating crusher adopts the high-pressure fan matched with the equipment for back blowing dust removal, which is not limited by the air source conditions of the application occasion, with few wearing parts, easy protection, reliable operation, and solves the drawbacks of compressed atmosphere pulse dust removal and the action distance of back blowing. Large, long filter bags can be used, full use of space, small footprint.
The trapezoidal flat bag is arranged in the cylinder body, the structure is simple and compact, and the filtration area index is high. Under the action of reverse blowing, the trapezoidal flat bag has a large amplitude, and only one vibration can shake off the accumulated dust, which is beneficial to improve the life of the filter bag.
The dust removal system of the vibrating screen crusher uses the resistance of the dust collector as a signal, which can automatically control the rotary back blowing dust removal, and can automatically adjust the dust removal cycle according to the different inlet dust concentrations. Moreover, the upper cover of the dust removal system of the crusher is divided into multiple pieces, which can be opened and changed at will, which is convenient for maintenance.
The dust removal system of the vibrating screen crusher has been designed several times, and the concentration of the inlet dust has been greatly improved.
The dust removal system of vibrating screen crusher is suitable for many places. In quarries, stone factories, and mines, the dust removal system of crushers can be used outdoors in the open air, and there is no need to build a separate dust removal room.
Dust suppression system for crusher plant, pulse bag dust removal system?
The pulse bag dust removal system of the dust suppression system for crusher plant is composed of an upper box, a middle box, an ash hopper, an air inlet equalizing pipe, a support filter bag, an injection device, and an ash discharge device.
The dust-containing gas enters the ash hopper of each sub-chamber from the air inlet flow pipe of the dust collector, and under the diversion of the ash hopper diversion device, the large particle dust is separated and directly falls into the ash hopper, while the finer dust is uniform. It enters the middle box and is adsorbed on the outer surface of the filter bag. The clean gas enters the upper box through the filter bag, and is discharged into the atmosphere through each offline valve and exhaust pipe.
During the filtration process, the dust on the filter bag accumulates more and more. When the resistance of the equipment reaches the limited resistance value, the cleaning control equipment will actively close the one-chamber offline valve according to the set value of differential pressure or the set value of cleaning time. Afterwards, open the electronically controlled pulse valve according to the set procedure, stop blowing, and use compressed air to shake off the dust on the filter bag into the ash hopper, and then discharge it by the ash discharge organization.
Dust suppression system for crusher plant, the operating characteristics of bag dust removal?
- The dust removal system of the crusher has a small footprint for bag dust removal
- Low power consumption, low operating and management costs
- The pulse jet dust removal of the bag dust removal system of the crusher is controlled by the computer, and the operation is stable and reliable.
- It is most suitable for the dust removal of the dust suppression system for crusher plant of coal, sinter, ores.
- Small one-time investment, can be used continuously
- According to the nature and temperature of the material, filter materials of different materials are selected to ensure the dust removal effect and service life
- The dust recovered by the dust removal system of the crusher is directly returned to the silo or conveyor belt, without secondary pollution
- High purification efficiency, in line with environmental protection requirements, basically solve the problem of crusher dust pollution
Dust suppression system for crusher plant, the characteristics of bag dust removal?
- Pulse offline dust removal, high efficiency, no secondary adsorption of dust
- Low air source pressure, long service life of filter bag and pulse valve
- Handling high temperature, high humidity gas, high filtration wind speed
- The filter bag is easy to disassemble and assemble, and the sealing performance is good
- Electronic control machine automatic control, easy operation, reliable performance
- Small footprint, low investment, good use effect
This is the introduction of the dust removal system of the crusher in this article. Do you all understand it clearly? If there are any questions that are unclear, it doesn’t matter if you don’t understand, you can leave a comment below our article, and we will reply to your comments one by one. At the same time, there are many excellent articles on our website, you are welcome to read them.