CN204238972U - The two air-drafting and dust-removing device of mine whitewashing - Google Patents

Abstract

The utility model relates to a double-suction dedusting device for mine spraying. The dust concentration in the roadway of the excavation working face is high. Therefore, the double-suction dedusting device for mine spraying includes a fan, and the inlet of the fan is connected with a blower. It also includes a dust filter box and a double suction box. The two ends of the dust filter box are respectively provided with an outlet and an inlet. One or more atomizing nozzles are arranged on the inner wall of the outlet. The filter dust box is provided with one or more slots, each slot has a filter plate, the filter plate is provided with a filter screen, and a drain port is provided at the lower end of the inlet side wall, and a drain pipe is provided on the drain port. The inlet is connected to the air duct; the double suction air box contains an air outlet and two air inlets, the air outlet is connected to the inlet of the filter dust removal box, and an air inlet is connected with an air suction duct. The utility model can effectively Purify and remove dust, improve the working environment on site, ensure the health and life safety of employees, and are suitable for use in coal mines.

Description

Double suction dust removal device for mine shotcrete

technical field

The utility model relates to a double-suction dust-removing device for spraying grout in a mine.

Background technique

At present, water jet dust collectors are installed on the downwind side of the shotcrete machine for dust removal in mine excavation working face roadway spraying operation sites. The air suction volume is small, the filtering method is simple, and the ability to deal with the dusty air generated by the spraying operation on the excavation working face is small. , and there is no dust removal equipment at the spraying site of the roadway, the dust concentration in the roadway of the excavation working face is high during spraying, which affects the health of the workers on site.

Utility model content

The technical problem to be solved by the utility model is how to overcome the above-mentioned defects of the prior art, and provide a double suction and dust removal device for mine spraying.

In order to solve the above-mentioned technical problems, the double-suction dust-removal device for mine shotcrete includes a fan, and the inlet of the fan is connected with a blower, and is characterized in that it also includes a filter dust-removal box and a double-suction wind-box, the filter dust-removal box has two Two or more atomizing nozzles are arranged on the inner wall of the outlet, and the atomizing nozzle is equipped with a water supply pipe connected to a controllable water source, and the filter and dust removal between it and the inlet There are one or two or more slots in the box, each slot has a filter plate, the filter plate is provided with a filter screen, and a drain port is provided at the lower end of the inlet side wall, and a drain pipe is provided on the drain port to filter and remove dust. The inlet of the box is connected to the air duct; the double suction air box contains an air outlet and two air inlets, the air outlet of which is connected to the inlet of the filter dust removal box, and an air inlet is connected with an air suction duct, and the air suction duct The inlet is set at the place where the shotcrete machine is equipped with the roadway, and the other air inlet is set at the place where the shotcrete machine is equipped with the roadway.

The air suction volume of the selected fan should be slightly larger than the air supply air volume head-on at the excavation working face, so as to absorb all the dusty air in the roadway and then filter and remove dust.

The double suction dust removal device for mine spraying is axisymmetrically designed, and the installation and fixed direction of the double suction device can be flexibly adjusted according to the installation position of the spraying machine during the spraying operation on the excavation face. pulper. It can be installed on the side of the road or a fixed frame when it is used in the excavation face of mine car or scraper conveyor (coal) gangue, and it can be installed on the belt rack when it is used in the excavation face of belt conveyor (coal) gangue.

Designed in this way, the device absorbs and removes dust from the dusty air generated at the feeding site of the spraying machine and the spraying operation site by extending the negative pressure air cylinder to the spraying site of the working face. The double suction dust removal device for spraying can be used with The spraying machine and the purification water curtain in the roadway are linked to realize the automation of spraying and dust removal in the roadway of the excavation working face.

The atomizing nozzle and dust filter net of the dust removal filter device can be taken out directly from the upper part of the dust removal filter device, which is convenient for maintenance, washing and replacement of the nozzle and dust removal filter net, and there is a dust removal sewage collection tank at the bottom of the dust removal device, and the dust removal sewage is discharged through the drain pipe Into the roadway ditch or pump pool, so as not to flow into the roadway to affect the working environment or enter the tape to affect the coal quality and block the warehouse.

As an optimization, the filter plate is a vibrating wire filter plate, and its filter screen is composed of a plurality of vertically arranged stainless steel string wires. With such a design, after the smoke and dust are joined with the atomized water droplets, they are adsorbed on the steel string wires, and after accumulating into water droplets, dust-removing sewage is formed, and finally discharged into the roadway ditch or pump pool through the drain pipe.

As an optimization, there is also an air volume adjustment gate on the air inlet at the feeding operation place of the roadway shotcrete machine. With such a design, the air suction volume at the feeding site of the spraying machine and the spraying operation site can be adjusted according to the actual situation on site.

The double-suction dedusting device for mine spraying of the utility model can simultaneously suck all the dust generated at the feeding site of the spraying machine and the spraying operation site into the dedusting device for effective purification and filtration, and then discharge it, so as to improve the working environment on site and ensure the health and safety of workers. Life safety, suitable for use in coal mines.

Description of drawings

The following is a further description of the double suction dust removal device for mine spraying grouting in conjunction with the attached drawings:

Fig. 1 is a schematic structural view of embodiment one of a double suction dust removal device for mine shotcrete (the direction of the arrow in the figure is the wind direction);

Fig. 2 is a structural schematic diagram of the second embodiment of the double suction dust removal device for mine shotcrete with double suction boxes.

In the figure: 1 is the fan, 2 is the air cylinder, 3 is the filter dust box, 4 is the double suction box, 5 is the atomizing nozzle, 6 is the slot, 7 is the filter plate, 8 is the drain port, 9 is the drain pipe, 10 is an air inlet, 11 is a suction tube, 12 is an air volume regulating gate, and 13 is an air outlet.

Detailed ways

Embodiment 1: As shown in Figure 1, the double-suction and dust-removal device for spraying in this mine includes a fan 1, and the inlet of the fan 1 is connected with an air cylinder 2, and its feature is that it also includes a filter dust removal box 3 and a double-suction air box 4. The two ends of the filter and dust removal box 3 are respectively provided with an outlet and an inlet, and two or more atomizing nozzles 5 are arranged on the inner wall of the outlet. not shown in), the filter dust box between the atomizing nozzle 5 and the inlet has one or two slots 6, each slot 6 has a filter plate 7, the filter plate 7 is provided with a filter screen, the inlet The lower end of the side wall is also provided with a drain port 8, and the drain port 8 is provided with a drain pipe 9, and the filter dust box 3 inlet is connected to the air cylinder 2; the double suction box 4 contains an air outlet 13 and two air inlets 10. Its air outlet 13 is connected to the inlet of the filter and dust removal box, and one air inlet 10 is connected with a suction cylinder 11. The inlet of the suction cylinder 11 is set at the operation place equipped with a roadway shotcrete machine, and the other air inlet 10 It is installed at the feeding operation place equipped with roadway shotcrete machine. The filter plate 7 is a vibrating wire filter plate, and its filter screen is composed of a plurality of vertically arranged stainless steel string wires.

Embodiment two: as shown in Figure 2, the air inlet 10 at the feeding operation place of the roadway shotcrete machine is also provided with an air volume regulating gate 12, and all the other structures are as shown in embodiment one.

Claims (3)

1. the two air-drafting and dust-removing device of mine whitewashing, comprise blower fan, the entrance of this blower fan is connected to air duct, it is characterized in that: it also comprises dust removal by filtration case and double suction bellows, described dust removal by filtration case two ends are respectively equipped with outlet and entrance, outlet inside wall is provided with one or two or multiple pulverizing nozzle, this pulverizing nozzle is furnished with the feed pipe communicated with controlled water source, dust removal by filtration case between itself and described entrance has one or two or multiple slot, each slot filter, filter is provided with filter screen, entrance side wall lower ends is also provided with an outfall, this outfall is provided with gutter, dust removal by filtration tank inlet connects described air duct, described double suction bellows contain an air outlet and two air intakes, its air outlet connects with the entrance of dust removal by filtration case, and an air intake is connected to wind sucting tube, this wind sucting tube entrance is arranged on pulp shooting machine operation place of adapted tunnel, and another air intake is arranged on pulp shooting machine material loading operation place of adapted tunnel.

2. the two air-drafting and dust-removing device of mine whitewashing as claimed in claim 1, it is characterized in that: described filter is vibratory string filter, its filter screen is made up of the stainless string wire silk of many vertical arrangements.

3. the two air-drafting and dust-removing device of mine whitewashing as claimed in claim 1, is characterized in that: the air intake of tunnel pulp shooting machine material loading operation place is also provided with air quantity and regulates flashboard.