CN102179117B - Cloth-bag dust removing device using water to clear ash - Google Patents

Abstract

The invention relates to a bag dust removal device, in particular to a water-cleaning dust bag dust removal device for filtering, purifying and dust removal in an asphalt mixing station, which includes a dust removal box, a flue inlet arranged on the dust removal box, and a dust removal box arranged on the dust removal box. The porous isolation baffle close to the entrance of the flue, the closed bag filter cloth and motor installed in the dust removal box on the side of the porous isolation baffle away from the entrance of the flue, and the water spray device is installed in the closed bag filter cloth , the water spray device is coaxially connected with the motor, a nozzle is set on the side circumference of the water spray device, a water level tank is set in the dust removal box, the water level tank is connected with the water spray device, and an overflow drain is set at the bottom of the water level tank, and the dust removal box The top of the dust collector is provided with a smoke outlet, and the bottom of the dust box is also provided with a sewage outlet, which has the advantages of low energy consumption, low cost and no pollution.

Description

Water cleaning dust bag dust removal device

technical field

The invention relates to a bag dust removal device, in particular to a water-cleaning bag dust removal device used for filtering, purification and dust removal in an asphalt mixing station.

Background technique

In recent years, with the rapid development of the economy, the number of asphalt mixing plants has increased a lot, and the air pollutants emitted by asphalt mixing plants have caused great harm to the surrounding environment. However, the main way to reduce or reduce the emissions of asphalt mixing plants is to combine with Various types of smoke and dust collectors are matched with asphalt mixing plants, and the performance and efficiency of dust collectors are the key to determining the degree of harm an asphalt mixing plant will cause to the surrounding environment.

At present, the most commonly used asphalt mixing plants are cyclone separators, electrostatic precipitators and bag filters. The key part in the operation process of the type dust collector, usually the cylindrical filter bag is hung vertically in the dust collector, and the dust collector bag is generally divided into pulse type dust removal filter bag, vibrating type dust removal bag, back blowing type according to the different cleaning methods. Dust bag. These dust bags have high requirements on the temperature, humidity and chemical properties of the gas, particle size, dust concentration, filtration wind speed, dust cleaning method and other factors, and there are many defects that need to be improved.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art and provide a water-cleaning dust bag dust removal device with strong dust removal ability, high dust removal efficiency, low emission concentration, stability and reliability, high temperature resistance and low energy consumption.

The object of the present invention is achieved in this way: comprising a dust removal box, a flue inlet arranged on the dust removal box, a porous isolation baffle arranged in the dust removal box close to the flue inlet, and a porous isolation baffle arranged on the side away from the flue inlet The closed bag filter cloth and the motor in the dust removal box are equipped with a water spray device in the closed bag filter cloth. The water spray device is connected with the motor coaxially. A water level box is arranged inside, and the water level box is connected with the water spray device. The bottom of the water level box is provided with an overflow drain, the top of the dust removal box is provided with a smoke exhaust port, and the bottom of the dust removal box is also provided with a sewage outlet. The bottom of the dust removal box is a conical structure.

A fan is provided at the smoke exhaust port on the top of the dust removal box.

The nozzles are high-pressure fan-shaped nozzles, and the nozzles are equidistantly arranged on the side of the cylindrical water level tank.

The overflow drain port arranged on the water level tank communicates with the clean water pool.

The sewage discharge outlet arranged at the bottom of the dust removal box communicates with the sewage pool.

The present invention has the following advantages: In summary, the present invention is energy-saving, the device can remove dust at low temperature or normal temperature, and has less energy consumption; the second is high efficiency, small power configuration, low use cost, and high dust removal efficiency; the third is Environmental protection, the device makes the construction site free of smoke and dust, water resources are recycled, no sewage is discharged, no secondary floating dust is generated, and the environment is not polluted; the fourth is saving, ensuring the quality of dust removal and sewage discharge, and reducing the labor intensity of workers and improving labor efficiency. environment and save labor costs.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Detailed ways

As shown in Figure 1, the present invention comprises a dust removal box 12, a flue inlet 8 arranged on the dust removal box 12, a porous isolation baffle 7 arranged in the dust removal box 12 near the flue inlet 8, and a porous isolation baffle 7 arranged on the dust removal box 12. The closed bag filter cloth 6 and the motor in the dust removal box away from the flue entrance side are provided with a water spray device 13 in the closed bag filter cloth 6, and the water spray device 13 is coaxially connected with the motor. A nozzle 5 is arranged on the side circumference of the device 13, and a water level box 9 is arranged in the dust removal box 12. The smoke outlet 4 and the bottom of the dust removal box 12 are also provided with a sewage outlet 2 .

The bottom of the dust removal box 12 is a conical structure.

The fan 3 is arranged at the exhaust port 4 on the top of the dust removal box 12 .

The nozzle 5 adopts a high-pressure fan-shaped nozzle, and the nozzles 5 are equidistantly arranged on the side of the cylindrical water level tank 9 .

The overflow outlet 11 arranged on the water level tank 9 communicates with the clean water tank 10 .

The sewage outlet 2 arranged at the bottom of the dust removal box 12 communicates with the sewage pool 1 .

Specific working process: First, smoke and dust enter from the flue inlet 8, and blow directly to the porous isolation baffle 7 through the pipeline. The filter cloth is washed by multiple rotating high-pressure nozzles 5. The nozzles 5 repeatedly wash and filter the smoke and dust in the dust removal device. The washed and filtered smoke is drawn out by the fan 3 and discharged through the smoke outlet 4. . The flushed sewage is discharged into the sewage pool 1 through the sewage outlet 2 of the pipeline below. Water level box 9 is used to satisfy the water that high-pressure shower head 5 needs to use, and when water level exceeds requirement, water level box 9 can discharge water automatically and discharges in the clean water pool 10 from outlet 11, thereby guarantees that high-pressure shower head 5 has sufficient working pressure.

Claims (5)

1. water bag-type dust collection device removing dust, comprise dust cleaning case (12), be arranged on the flue entrance (8) on the dust cleaning case (12), be arranged on the porous isolation baffle plate (7) of close flue entrance (8) in the dust cleaning case (12), be arranged on porous isolation baffle plate (7) away from the enclosed type pocket type filter cloth (6) in the dust cleaning case of flue entrance one side, motor, it is characterized in that: in enclosed type pocket type filter cloth (6), be provided with water injector (13), water injector (13) is connected with motor coaxle, circumference is provided with shower nozzle (5) in water injector (13) side, in dust cleaning case (12), be provided with water level case (9), this water level case (9) is communicated with water injector (13), water level case (9) bottom is provided with overflows discharge outlet (11), be provided with exhaust opening (4) at the top of dust cleaning case (12), the bottom of dust cleaning case (12) also is provided with sewage draining exit (2).

2. water bag-type dust collection device removing dust according to claim 1, it is characterized in that: the bottom of described dust cleaning case (12) is pyramidal structure.

3. water bag-type dust collection device removing dust according to claim 1, it is characterized in that: described exhaust opening (4) position that is arranged on dust cleaning case (12) top is provided with blower fan (3).

4. water bag-type dust collection device removing dust according to claim 1, it is characterized in that: the described discharge outlet (11) of overflowing that is arranged on the water level case (9) is communicated with water purifying tank (10).

5. water bag-type dust collection device removing dust according to claim 1 is characterized in that: the described sewage draining exit (2) that is arranged on dust cleaning case (12) bottom is communicated with cesspool (1).