CN201574759U

CN201574759U - Device for reducing dust generated by drilling holes on fully-mechanized excavation face in coal mine

Info

Publication number: CN201574759U
Application number: CN2009202587876U
Authority: CN
Inventors: 尹治国
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-11-26
Filing date: 2009-11-26
Publication date: 2010-09-08
Anticipated expiration: 2019-11-26

Abstract

The utility model discloses a dust reducing device, in particular to a device for reducing dust generated by drilling holes on the fully-mechanized excavation face in a coal mine. A drilling rod hole (13) is formed at the middle part of a front cover plate (11) and fixed at the front part of a box body (1) via a bolt (12), connecting fixing plates (10) are respectively arranged on two sides at the upper part and the lower part of the box body (1), water-spraying dust removal mechanisms are arranged on the box body (1) and at the middle part on the left side and the right side, a baffle plate (2) is arranged at the inner upper part of a lower dust discharge opening (3) on the box body (1) at a certain inclination angle, a dust receiving bag (9) is movably arranged at the lower part of the lower dust discharge opening (3), and a sealing dust-collecting mechanism is arranged at the rear part of the box body (1). Since the spraying device is sealed by adopting the box body, the dust reducing device is installed on the machine body of a tunneling machine, the cutter head of the tunneling machine can be fully covered by the spraying sealing device in front, and the coal dust can be effectively prevented from flying; the dust reducing device is simple in structure and scientific and reasonable, and the dust removal efficiency can be up to 95 percent; therefore, the dust reducing device is an ideal fully-automatic combined dust reducing device for the fully-mechanized excavation face.

Description

Colliery fully mechanized workface boring device for reducing dust

Technical field: the utility model relates to a kind of device for reducing dust, specifically is colliery fully mechanized workface boring device for reducing dust.

Background technology: at present, in the Coal Mining Equipment Complement of colliery, the coal dust amount is adopted greatly than general combining, the strong person of outstanding talent of serious harm underground labour health, and have coal dust explosion hazard.So seek dust prevention targetedly is longwall top coal caving technology urgent problem.Coal dust source mainly is the coal-winning machine coal cutting, move to put in coal, the work plane transportation reprinting process behind frame, the frame and produce.Coal dust still is one of subject matter of puzzlement Coal Production, and the dust concentration during the coal-winning machine coal cutting of fully-mechanized mining working can reach 3000～6000mg/j113, and the dust of high concentration especially respirable dust is the immediate cause of bringing out workman's tuberculosis.For depositing dust, people have designed multiple dust falling device, existing China's coal-mine coal-winning machine dust-settling technology is mostly based on interior external spraying, because the design of the outer spray of high pressure system is huge, injection field and high-pressure nozzle design are unreasonable, and nozzle is easily stifled, water consumption is big, atomizing effect and dust-laying effect are not good, and spraying system is reason such as operate as normal for a long time, and dust-laying effect is very undesirable.

The utility model content: purpose of design of the present utility model is to overcome the weak point in the prior art, and provide a kind of atomizing de-dusting that makes airborne with high pressure feedway realization forever, and atomizing de-dusting is effective, can reduce the efficient device for reducing dust of the charged mist of disputing of the airborne high pressure of coal-winning machine that comprehensive driving face dust concentration is especially breathed the concentration of dust greatly.

The technical scheme that the utility model technical solution problem is adopted is: described drilling rod enters hole 13 and is arranged on front shroud 11 middle parts, and be fixed on casing 1 front portion by bolt 12, be connected and fixed plate 10 and be arranged on both sides, casing 1 upper and lower part, the water spray dedusting mechanism is arranged on the casing 1, the left and right sides middle part, baffle plate 2 inclination certain angle devices are at the internal upper part of the following dust-exhausting port 3 of casing 1, connect the bottom of dirt bag 9 heads, seal the mechanism of gathering dust and be arranged on casing 1 rear portion at following dust-exhausting port 3.Because the utility model adopts the box sealing atomization mechanism, be installed on the machine body of boring machine, the spraying sealing device of front can cover cutting head of roadheader fully, can stop dust from flying effectively, and simple in structure, science, reasonable, dust removal efficiency can reach more than 95%, is that a kind of desirable fully mechanized workface automatically makes up device for reducing dust.

The beneficial effects of the utility model are: because the utility model adopts the seal cavity depositing dust, be installed on the machine body of boring machine, the spraying sealing device of front can cover cutting head of roadheader fully, can stop dust from flying effectively, can concentrate the coal dust that in the coal hole, sprays effectively and reclaim, and simple in structure, science, reasonable, dust removal efficiency can reach more than 95%, is that a kind of desirable fully mechanized workface automatically makes up device for reducing dust.Secondary fly-up when having avoided the cleaning coal dust is effectively eliminated dust in product dirt place, is a kind of desirable fully mechanized workface sealing device for reducing dust.

1, good seal performance, unlatching is flexible, the life-span is long, it is tight, water-tight to close.

2. work plane only supplies water with a water pipe, and the water route is simple,

3. because this action can be controlled adjacent frame, so the depositing dust of the place ahead cutting coal machine is no longer with manually control.

4. realized the uninterrupted spraying when moving frame and the operation of caving coal, good dustproof effect.

Description of drawings: Fig. 1 is a main sectional view of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the front shroud view of Fig. 1.

Fig. 4 is that the A-A of Fig. 1 is to view.

The specific embodiment: as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4: drilling rod enters hole 13 and is arranged on front shroud 11 middle parts, and be fixed on casing 1 front portion by bolt 12, be connected and fixed plate 10 and be arranged on both sides, casing 1 upper and lower part, the water spray dedusting mechanism is arranged on the casing 1, the left and right sides middle part, baffle plate 2 inclination certain angle devices are at the internal upper part of the following dust-exhausting port 3 of casing 1, connect the bottom of dirt bag 9 heads, seal the mechanism of gathering dust and be arranged on casing 1 rear portion at following dust-exhausting port 3.

As Fig. 1, Fig. 2, shown in Figure 4: the high-pressure water pipe threeway 4 of water spray dedusting mechanism is connected with water-supply-pipe 5, and be arranged on the casing 1, the left and right sides middle part, copper nozzle 6 equidistantly is arranged on the casing 1 by taking over, left and right sides middle inside and under the interior side of dust-exhausting port 3.

As Fig. 2, Fig. 3, shown in Figure 4: drilling rod enters hole 13 and is Long Circle, and periphery is provided with rubber gasket, and both sides are provided with draw-in groove 14, half one of dust board 15 head draw-in grooves 14.

As Fig. 1, shown in Figure 4: sealing is gathered dust the hole 7 of gathering dust of mechanism for square, and groove 8 is set all around, and hairbrush 16 is fixedly connected on the fixing chuck plate, and is embedded in the groove 8.

Purpose of design of the present utility model can also reach by following measure: this device has two models, and a device is on large-scale rig fuselage; Another can directly be stably fixed on the rib of rhombus net.Many for coal wall coil road, the fixed head that can extend in the time of can not installing is embedded in the groove, utilizes hairbrush to increase seal length again.

Claims

1. colliery fully mechanized workface boring device for reducing dust, it is characterized in that drilling rod enters hole (13) and is arranged on front shroud (11) middle part, and be fixed on casing (1) front portion by bolt (12), be connected and fixed plate (10) and be arranged on casing (1) both sides, upper and lower part, the water spray dedusting mechanism is arranged on the casing (1), the left and right sides middle part, baffle plate (2) inclination certain angle device is at the internal upper part of the following dust-exhausting port (3) of casing (1), connect the bottom of dirt bag (9) head, seal the mechanism of gathering dust and be arranged on casing (1) rear portion at following dust-exhausting port (3).

2. colliery according to claim 1 fully mechanized workface boring device for reducing dust, the high-pressure water pipe threeway (4) of dedusting mechanism of it is characterized in that spraying water is connected with water-supply-pipe (5), and be arranged on that casing (1) is gone up, the left and right sides middle part, copper nozzle (6) is arranged on equidistantly by taking over that casing (1) is gone up, left and right sides middle inside and the interior side of dust-exhausting port (3) down.

3. fully mechanized workface boring device for reducing dust in colliery according to claim 1 is characterized in that drilling rod enters hole (13) and is Long Circle, and periphery is provided with rubber gasket, and both sides are provided with draw-in groove (14), and dust board (15) head is in half one of draw-in groove (14).

4. colliery according to claim 1 fully mechanized workface boring device for reducing dust is characterized in that sealing and gathers dust the hole of gathering dust (7) of mechanism for square, and groove (8) is set all around, and hairbrush (16) is fixedly connected on the fixing chuck plate, and is embedded in the groove (8).