RU221888U1 - Ultrasonic fog generation device for dust suppression - Google Patents

Abstract

The utility model relates to dust suppression means and can be used to suppress dust generated during crushing and grinding of rock mass at mining, metallurgical, coal, construction and other industries. An ultrasonic fog generation device for dust suppression contains a housing in which an air filter, a water filter, a plastic container in which fog generation occurs, ultrasonic fog generators, a duct fan for removing humidified air, a cabinet of instrumentation and automated control systems, and a power supply are located. , a control compartment with a touch panel and manual control buttons, while the ultrasonic fog generators are located in 2 tiers above each other, the power supply is made in the form of several separate independent units, and the device additionally contains a heating system in the form of a heating cable located on the walls of the water filter. The technical result consists in increasing the efficiency of the dust suppression device. 3 salary f-ly, 2 ill.

Description

The utility model relates to dust suppression means and can be used to suppress dust generated during crushing and grinding of rock mass at mining, metallurgical, coal, construction and other industries.

A known installation for dust suppression consists of a control unit configured to transmit a signal to a high-pressure air source connected by means of injection ducts to siphon-type containers with ionized water of opposite polarity through electromagnetic pneumatic valves, fine atomization nozzles connected by water lines to siphon-type containers through electromagnetic hydraulic valves and a decoupling device for air and water lines, connected to a high-pressure air source by a purge air duct, while the electromagnetic pneumatic and hydraulic valves and decoupling device are connected by control and monitoring circuits to the control unit, while in siphon-type tanks the entire depth of the ionized water, perforated bubbling air ducts with a pneumodynamic generator of air pressure oscillations at the inlet are installed, communicating with the discharge air duct (invention patent RU2575372, IPC E21F 5/02, 2014, Bull. No. 5, 2016). The disadvantages of the known installation are:

the need for additional equipment (compressed air source, water treatment system, air ionization device), which takes up significant space, consumes a large amount of energy and increases the cost of the equipment as a whole;

large overall dimensions of the device;

limited use only indoors without the possibility of outdoor use in subzero temperatures;

high water consumption for the operation of the device.

A known fogger contains a housing, inside of which there is a filter element, a cover and a side pipe, in which a fog-forming nozzle is installed, consisting of a housing with a mesh installed in it, a spray sleeve and a clamping nut, and the spray sleeve contains one central and four side nozzles , while the side nozzles are located on a conical surface so that the water jets emerging from the five nozzles meet on the axis of the central nozzle (utility model patent RU194473, IPC B05B 1/12, B05B 1/14, 2019, Bulletin No. 35, 2019). The disadvantages of the known device are:

limited use only indoors without the possibility of outdoor use in subzero temperatures;

high water consumption for operation of the device;

the need to maintain high water pressure, which requires additional equipment that takes up significant space, consumes a large amount of energy and increases the cost of the equipment as a whole;

the formation of larger droplets, which float less in the air and wet the dust more strongly, increasing its mass, which requires additional costs for further drying, and also increases wear on conveyors and increases the cost of transportation; in addition, some types of raw materials may react with increased moisture with water to form chemically active substances, for example, sulfuric acid.

An air humidifier is known, containing a housing housing a water tank, ultrasonic evaporators, a disinfection device, a fan for pumping humidified air into the air duct to remove the humidified air, as well as a humidity sensor and a computer control system connected to an external control system via digital communication channels. , wherein the disinfecting device is made in the form of a UV lamp located above the upper part of the tank, equipped with a UV-permeable mesh partition for catching water droplets, ultrasonic evaporators are installed in the lower part of the said tank, the volume of the upper part of which is connected to the inlet of the air duct, and the fan is connected with the upper part of the tank made with a UV-permeable lid, directly above which a UV lamp is located (utility model patent RU213100, IPC F24F 6/10, F24F 8/22, 2022, Bulletin No. 24, 2022) . The disadvantages of the known device are:

limited use only as a humidifier due to the low characteristics of the generated fog, which do not provide effective dust suppression;

lack of an air purification system, which shortens the life of the device due to the possibility of rapid clogging;

low productivity;

limited use only indoors without the possibility of outdoor use in subzero temperatures.

The closest to the claimed technical solution is the industrial ultrasonic air humidifier Daksen DK-03A, enclosed in a durable stainless steel case with powder coating, inside the device in the lower part there are ultrasonic emitters, the electric power unit drives all the electrical components of the humidifier, the upper part of the case is equipped with a hole for connecting air ducts through which water vapor will be distributed in the room, also for connecting to the water supply there is a special connection unit with a coarse water filter, a water reservoir is located inside the housing, the control panel is moved outside along with the electrical cabinet. The disadvantages of the known device are:

limited use only as a humidifier due to the low characteristics of the generated fog, which do not provide effective dust suppression;

lack of air and water purification systems, which shortens the life of the device due to the possibility of rapid clogging;

low productivity;

low reliability of the device due to one common battery;

limited use only indoors without the possibility of outdoor use in subzero temperatures.

The objective of the claimed utility model is to eliminate these shortcomings, and the technical result is to increase the efficiency of the dust suppression device.

Achieving the specified technical result is achieved due to the fact that the device for ultrasonic fog generation for dust suppression contains a housing in which an air filter, a water filter, a plastic container in which fog generation occurs, ultrasonic fog generators, a duct fan for removing humidified air, and a control cabinet are located. -measuring instruments (hereinafter referred to as instrumentation) and an automated control system (hereinafter referred to as ACS), power supply, control compartment with a touch panel and manual control buttons, while ultrasonic fog generators are located in 2 tiers above each other, the power supply is made in the form of several separate independent blocks, and the device additionally contains a heating system in the form of a heating cable located on the walls of the water filter.

Placing ultrasonic fog generators inside the device body in 2 tiers above each other allows you to increase the productivity of the device while saving space. Separate independent power supplies are interchangeable and ensure operation of the device if one of them fails. The heating system allows you to maintain a constant temperature of water in a plastic container of at least 10 ° C, regardless of the ambient temperature, which ensures the operation of the device under different operating conditions.

It is advisable to use bag-type filters with a filtration degree of 10 microns as an air filter and water filter to extend the service life of ultrasonic evaporators and protect the plastic container from clogging.

To regulate the liquid level, it is advisable to equip a plastic container with a float level sensor.

The claimed utility model is illustrated in Fig. 1 and 2 in the left view and the right view, respectively, using the following notation:

1 – air filter;

2 – instrumentation and automated control system cabinet;

3 – water filter;

4 – ball valve with electric drive and self-return mechanism;

5 – ultrasonic fog generator;

6 – plastic container;

7 – level sensor;

8 – channel fan;

9 – power supply;

10 – control compartment;

The ultrasonic fog generation device for dust suppression consists of the following elements. Inside, in the upper part of the housing there is an air filter 1 for cleaning the incoming air and a duct fan 8 for supplying the required amount of air, which pushes the resulting fog to the required point, in the lower part there is a water filter 3 for purifying the water entering through ball valves 4 with an electric drive and self-return mechanism for remote opening and closing, as well as automatic drainage capabilities. At the same time, a heating cable for the heating system is located on the walls of the water filter, which allows you to heat the incoming water. The container and water lines are also heated. In the plastic container 6, where fog is formed, ultrasonic fog generators 5 are located in 2 tiers one above the other, and a float level sensor 7 is installed, signaling when water reaches boundary levels (absence or overflow). At the front of the device there is a control compartment 10 with a touch panel and manual control buttons. The instrumentation and automated control system cabinet 2 at the rear of the device is used to accommodate automation, circuit breakers and other equipment. Behind the plastic container 6 there are dust-proof and interchangeable power supplies 9 for operating ultrasonic fog generators 5. An ultrasonic fog generation device for dust suppression can be easily integrated into the enterprise information network and controlled remotely by an operator, while several devices can be combined into a single network.

An ultrasonic fog generation device for dust suppression operates as follows. The water supplied by ball valves 4 passes through the water filter 3 for cleaning and fills the plastic container 6. The water level in the plastic container 6 is limited by a mechanical float valve. After filling the device with water, the operator selects the operating mode.

Depending on the required amount of fog, three operating modes of the device are provided: the first mode starts only the ultrasonic fog generators 5 located in the lower part of the plastic container 6, the second mode starts only the ultrasonic fog generators 5 located in the upper part of the plastic container 6, the third mode starts all ultrasonic fog generators at once fog generators 5. Mode control allows you to effectively suppress dust and manage water and electricity consumption.

The transformation of water into fog occurs due to ultrasonic fog generators 5, when turned on, ceramic plates begin to vibrate at the frequency of ultrasound and knock out droplets with an average size of 1-5 microns from the surface of the water. The resulting droplets, mixing with the air purified in the air filter 1, are directed in the form of fog through the duct fan 8 through the ventilation ducts to dust points. Dust particles stick together with water droplets and settle; in addition, the fog prevents dust particles from leaving the dust points.

The dust suppression efficiency of the claimed utility model is at least 60% with water consumption up to 40 l/h and energy consumption up to 8 kW.

Claims (4)

1. An ultrasonic fog generation device for dust suppression, containing a housing in which an air filter, a water filter, a plastic container in which fog generation occurs, ultrasonic fog generators, a duct fan for removing humidified air, a cabinet of instrumentation and an automated control system are located. , power supply, control compartment with a touch panel and manual control buttons, characterized in that the ultrasonic fog generators are located in 2 tiers above each other, the power supply is made in the form of several separate independent units, and the device additionally contains a heating system in the form of a heating system located on the walls heating cable water filter. 2. The device according to claim 1, characterized in that the air filter is a bag-type filter with a filtration degree of 10 microns. 3. The device according to claim 1, characterized in that the water filter is a bag-type filter with a filtration degree of 10 microns. 4. The device according to claim 1, characterized in that a float level sensor is located in the plastic container.