CN203783584U - Coal mine fully-mechanized excavation face short-distance comprehensive dust removal system - Google Patents

Coal mine fully-mechanized excavation face short-distance comprehensive dust removal system Download PDF

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Publication number
CN203783584U
CN203783584U CN201320853792.8U CN201320853792U CN203783584U CN 203783584 U CN203783584 U CN 203783584U CN 201320853792 U CN201320853792 U CN 201320853792U CN 203783584 U CN203783584 U CN 203783584U
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CN
China
Prior art keywords
fully
dust
hard ventilating
dust removal
joint
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Expired - Fee Related
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CN201320853792.8U
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Chinese (zh)
Inventor
秦文露
张加国
李心秋
曹务学
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SHANDONG XINYANG ENERGY CO Ltd
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SHANDONG XINYANG ENERGY CO Ltd
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Priority to CN201320853792.8U priority Critical patent/CN203783584U/en
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Abstract

The utility model discloses a coal mine fully-mechanized excavation face short-distance comprehensive dust removal system. The comprehensive dust removal system adopts a front extraction and short pressing combined ventilation manner and a dust catching net form. The comprehensive dust removal system is characterized in that 1, a wet vibrating wire dust removal fan loaded on a bearing trolley is arranged on a fully-mechanized excavation face, and the suction port of the dust removal fan is designed as a flared suction port; 2, a multistage wall-attached air cylinder is arranged within 20 meters away from the fully-mechanized excavation face, and the air cylinder is connected to a flexible air cylinder of a forcing fan; 3, one to two dust catching nets covering the whole section are arranged at a secondary conveying belt tail of an integrated excavator, and an automatic scouring water curtain is arranged at the windward side of each dust catching net; the bearing trolley is connected with the secondary conveying belt tail of the integrated excavator through a connecting rod; the dust removal fan is linked with the integrated excavator. The comprehensive dust removal system has the advantages that the dust concentration of an operation place is reduced, the risk of coal dust explosion and the incidence of pneumoconiosis are reduced, and the safe production of mines and the occupational safety and health are ensured.

Description

Excavation face in coal mine short distance combined dust-eliminating system
Technical field
The utility model relates to coalmine ventilation field, relates in particular to the ventilation system of fully mechanized workface.
Background technology
At present at colliery 7m 2while tunneling in above large section roadway, used the high-power fully-mechanized digging machine of MR340x, this fully-mechanized digging machine duration of work, work plane dust-producing amount is large, and dust concentration is at 165mg/m 3, worker's work under bad environment, has a strong impact on worker's physical and mental health, and the safety in production of mine is caused to very large threat.
Summary of the invention
In order effectively to reduce excavation face in coal mine dust concentration, control dust from flying and diffusion, the utility model designs a kind of short distance combined dust-eliminating system.
For achieving the above object, the technical scheme of taking is:
An excavation face in coal mine short distance combined dust-eliminating system, is characterized in that, it is the combined dust-eliminating system of " front take out a short pressure natural and mechanical combined ventilation mode+Dust collecting net " form; Described combined dust-eliminating system: the one, at fully mechanized workface, be furnished with movably air quantity at 225m 3the wet type vibratory string dedusting fan of/min, dedusting fan inlet scoop is designed to horn mouth formula inlet scoop, inlet scoop is not more than 3 meters apart from work plane, and between the cutting units in fully-mechanized digging machine and the drive hoeing machine of fully-mechanized digging machine, the 2nd, apart from 20 meters of fully mechanized workfaces, be furnished with multistage air duct, this air duct is connected to from the flexible air duct of fresh distinguished and admirable next pressure fan, the 3rd, at fully-mechanized digging machine two fortune belt machine end places, install 1-2 road and cover full face Dust collecting net, and on Dust collecting net the distinguished and admirable automatic flushing water curtain that is installed on;
Described wet type vibratory string dedusting fan is arranged on carrying dolly, and carrying dolly is connected with fully-mechanized digging machine two fortune conveyor tail ends by connecting rod, can be with two fortune belt machine ends together along the airborne orbital motion of belt; Dedusting fan and fully-mechanized digging machine are realized interlock;
The structure of described multistage air duct is, by first segment, second section, the 3rd joint hard ventilating tube and cambered surface plectane that keeps out the wind, formed successively, three joint hard circle air ducts and cambered surface are kept out the wind the certain distance hanging of plectane space on the stay cord of tunnel, and should guarantee on an axis, the keep out the wind diameter of plectane of three joint hard ventilating tubes and cambered surfaces is descending step by step; Wherein the end of three joint hard ventilating tubes is equipped with horn mouth, and the head end of second section hard ventilating tube and the 3rd joint hard ventilating tube is provided with sweptback wind loop; The length of three joint hard ventilating tubes is 2-3 rice, the diameter of first segment hard ventilating tube is identical with the diameter of the flexible air duct of former ventilation fan, second section hard ventilating tube diameter is less than 0.1 meter of first segment hard ventilating tube diameter, the 3rd joint hard ventilating tube diameter is less than 0.1 meter of second section hard ventilating tube diameter, the blast that is provided with diameter 10mm on the bottom surface of three joint hard ventilating tubes detects hole, for measuring every joint wind tube wind quantity.
Good effect of the present utility model is:
1, the multistage air duct of proposition scalability of novelty, dedusting fan inlet scoop is front, and forced air duct is rear, before take out rear pressure, in the both sides of meeting head on, form the directed brattice in 3 roads, change traditional forced ventilation wind direction, during fully-mechanized digging machine cut, dust-contained airflow all enters dedusting fan, dust-contained airflow is controlled in the scope of meeting head on, effectively suppresses dust loss backward, dust is only being met head within the scope of 30 meters, improve work plane operating environment, play the object of efficient dust suction.
2, it is horn-like improving dedusting fan inlet scoop, and move forward to cutting units, increase pressure reduction, improve dedusting fan efficiency, use large flow wet type type vibration wire dedusting fan, coordinate depositing dust curtain, play high-effective dust-removing object, ensured and reduced operating location dust concentration, reduce the danger of coal-dust explosion and the incidence of disease of pneumoconiosis, guarantee safety in production and the occupational safety and health of mine, there is higher safe meaning.
Accompanying drawing explanation
Fig. 1 is the multistage air duct schematic diagram of scalability;
Fig. 2 is the layout schematic diagram of embodiment;
Fig. 3 is the front view of the horn mouth formula inlet scoop of dedusting fan;
Fig. 4 is the right view of Fig. 3;
Fig. 5 is the top view of Fig. 3.
Marginal data, 1-first segment hard ventilating tube, 2-second section hard ventilating tube, 3-the 3rd joint hard ventilating tube, the 4-cambered surface plectane that keeps out the wind, 5-horn mouth, 6-wind loop, 7-hanging hook, 8-back, 9-blast detects hole, 10-fully mechanized workface, 11-fully-mechanized digging machine, 12-inlet scoop, 13-drive hoeing machine, the multistage air duct of 14-, the flexible air duct of 15-pressure fan, 16-bis-fortune belt machine ends, 17-Dust collecting net, 18-automatic flushing water curtain, 19-wet type vibratory string dedusting fan, 20-carries dolly, the flat square opening of 21-, 22-round mouth.
The specific embodiment
Below in conjunction with further illustrating by reference to the accompanying drawings the technical solution of the utility model.
As the excavation face in coal mine short distance combined dust-eliminating system of Fig. 2, it is the combined dust-eliminating system of " front take out a short pressure natural and mechanical combined ventilation mode+Dust collecting net " form, described combined dust-eliminating system one is to be furnished with movably air quantity at 225m at fully mechanized workface 10 3the wet type vibratory string dedusting fan 19 of/min, wet type vibratory string dedusting fan 19 inlet scoops are designed to horn mouth formula inlet scoop 12, inlet scoop 12 is not more than 3 meters apart from work plane, and between the drive hoeing machine 13 of the cutting units in fully-mechanized digging machine 11 and fully-mechanized digging machine 11, the 2nd, apart from 20 meters of fully mechanized workface 10, be furnished with multistage air duct 14, this multistage air duct 14 is connected to from the flexible air duct 15 of fresh distinguished and admirable next pressure fan, the 3rd, at two fortune belt machine end 16 places of fully-mechanized digging machine 11, install 1-2 road and cover full face Dust collecting net 17, and at the upper distinguished and admirable automatic flushing water curtain 18 that is installed on of Dust collecting net 17,
Described wet type vibratory string dedusting fan 19 is arranged on carrying dolly 20, and carrying dolly 20 is connected with fully-mechanized digging machine two fortune tail 16 ends by connecting rod, can be with two fortune tails 16 along the airborne orbital motion of belt; Dedusting fan 19 is realized interlock with fully-mechanized digging machine 2;
The structure of multistage air duct 14 is as shown in Figure 1, by three joint hard ventilating tubes and cambered surface plectane 4 that keeps out the wind, formed, three joint hard ventilating tubes are respectively first segment hard ventilating tube 1, second section hard ventilating tube 2 and the 3rd joint hard ventilating tube 3, first segment hard ventilating tube 1, second section hard ventilating tube 2, the 3rd joint hard ventilating tube 3 and cambered surface kept out the wind on the end face of plectane 4 and is equipped with hanging hook 7, space certain distance hanging is on back 8 stay cords, and should guarantee on an axis, first segment hard ventilating tube 1, second section hard ventilating tube 2, the keep out the wind diameter of plectane 4 of the 3rd joint hard ventilating tube 3 and cambered surface is descending step by step, wherein the end of three joint hard ventilating tubes is equipped with horn mouth 5, and the head end of second section hard ventilating tube 2 and the 3rd joint hard ventilating tube 3 is provided with sweptback wind loop 6, three joint hard ventilating tubes be length 2-3 rice, the diameter of first segment hard ventilating tube 1 is identical with the diameter of the flexible air duct of former ventilation fan, second section hard ventilating tube 2 diameters are less than 0.1 meter of first segment hard ventilating tube 1 diameter, and the 3rd joint 3 hard ventilating tube diameters are less than 0.1 meter of second section hard ventilating tube 2 diameter, the blast that is equipped with diameter 10mm on the bottom surface of three described joint hard ventilating tubes detects hole 9, for measuring every joint wind tube wind quantity.
The structure of the horn mouth formula inlet scoop 12 of wet type vibratory string dedusting fan 19 is as shown in Fig. 3,4,5, and it is designed to different form, and one end is the round mouth suitable with wet type vibratory string dedusting fan 19, and the other end is flat square opening 21; Flat square opening 21 is convenient to be arranged between the cutting units and drive hoeing machine 13 of fully-mechanized digging machine 11.

Claims (1)

1. an excavation face in coal mine short distance combined dust-eliminating system, is characterized in that, it is the combined dust-eliminating system of taking out short pressure natural and mechanical combined ventilation mode+Dust collecting net form before; Described combined dust-eliminating system: the one, at fully mechanized workface, be furnished with mobile air quantity at 225m 3the wet type vibratory string dedusting fan of/min, wet type vibratory string dedusting fan inlet scoop is designed to horn mouth formula inlet scoop, and inlet scoop is not more than 3 meters apart from work plane, and between the cutting units in fully-mechanized digging machine and the drive hoeing machine of fully-mechanized digging machine; The 2nd, apart from 20 meters of fully mechanized workfaces, be furnished with multistage air duct, this air duct is connected to from the fresh distinguished and admirable flexible air duct of pressure fan coming; The 3rd, at fully-mechanized digging machine two fortune belt machine end places, install 1-2 road and cover full face Dust collecting net, and on Dust collecting net the distinguished and admirable automatic flushing water curtain that is installed on;
Described wet type vibratory string dedusting fan is arranged on carrying dolly, and carrying dolly is connected with fully-mechanized digging machine two fortune conveyor tail ends by connecting rod, can be with two fortune belt machine ends together along the airborne orbital motion of belt; Dedusting fan and fully-mechanized digging machine are realized interlock;
The structure of described multistage air duct is, by first segment, second section, the 3rd joint hard ventilating tube and cambered surface plectane that keeps out the wind, formed successively, three joint hard circle air ducts and cambered surface are kept out the wind the hanging of plectane interval on the stay cord of tunnel, and should guarantee on an axis, the keep out the wind diameter of plectane of three joint hard ventilating tubes and cambered surfaces is descending step by step; Wherein the end of three joint hard ventilating tubes is equipped with horn mouth, and the head end of second section hard ventilating tube and the 3rd joint hard ventilating tube is provided with sweptback wind loop; The length of three joint hard ventilating tubes is 2-3 rice, the diameter of first segment hard ventilating tube is identical with the diameter of the flexible air duct of former ventilation fan, second section hard ventilating tube diameter is less than 0.1 meter of first segment hard ventilating tube diameter, the 3rd joint hard ventilating tube diameter is less than 0.1 meter of second section hard ventilating tube diameter, the blast that is provided with diameter 10mm on the bottom surface of three joint hard ventilating tubes detects hole, for measuring every joint wind tube wind quantity.
CN201320853792.8U 2013-12-24 2013-12-24 Coal mine fully-mechanized excavation face short-distance comprehensive dust removal system Expired - Fee Related CN203783584U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320853792.8U CN203783584U (en) 2013-12-24 2013-12-24 Coal mine fully-mechanized excavation face short-distance comprehensive dust removal system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320853792.8U CN203783584U (en) 2013-12-24 2013-12-24 Coal mine fully-mechanized excavation face short-distance comprehensive dust removal system

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104612745A (en) * 2015-01-19 2015-05-13 安徽惠尔矿用设备有限公司 Efficient coaxial air curtain dedusting system for coal mine
CN105569714A (en) * 2016-03-03 2016-05-11 太原理工大学 Ventilation device for underground coal mine chamber or shortwall working face
CN109236343A (en) * 2018-09-26 2019-01-18 中蓝长化工程科技有限公司 A kind of heading end pressure pumping switching positive draft method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104612745A (en) * 2015-01-19 2015-05-13 安徽惠尔矿用设备有限公司 Efficient coaxial air curtain dedusting system for coal mine
CN105569714A (en) * 2016-03-03 2016-05-11 太原理工大学 Ventilation device for underground coal mine chamber or shortwall working face
CN109236343A (en) * 2018-09-26 2019-01-18 中蓝长化工程科技有限公司 A kind of heading end pressure pumping switching positive draft method

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20140820

Termination date: 20151224

EXPY Termination of patent right or utility model