CN210637073U

CN210637073U - Comprehensive dust removal complete device for fully mechanized excavation face

Info

Publication number: CN210637073U
Application number: CN201921281615.0U
Authority: CN
Inventors: 路海军; 路凯翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-05-29
Anticipated expiration: 2029-08-09

Abstract

The utility model relates to a mining comprehensive dust removal complete device for a fully mechanized excavation face, which belongs to the technical field of comprehensive dust prevention of mines, a box body comprising a foam dust suppression device is fixed on a fully mechanized excavation machine, a foaming agent feeding pipe is arranged on the box body, a foam generator is arranged at the side part of the box body, a compressed air inlet interface and a foam discharging pipe are arranged on the foam generator, and a plurality of foam nozzles are arranged on a nozzle bracket; pneumatic dust removal purifier fixes on combining digger afterbody return air side position, installs pneumatic motor in the wet-type pneumatic dust collector, installs the impeller on the pneumatic motor, and the forced air intake pipe is connected with pneumatic motor, and wet-type pneumatic dust collector's air intake end impeller is preceding and be provided with three water smoke shower nozzle on the air outlet end circumference altogether, the utility model discloses from combining digger cutterhead broken coal dust production point, working face coal fall raise dust point, combine digger shovel board to take off the coal, three angles such as fortune coal point press down dirt, dust fall, dust removal purification, synthesize the dust removal rate through the witnessed inspections and reach 85.8%.

Description

Comprehensive dust removal complete device for fully mechanized excavation face

Technical Field

The utility model relates to a combine and dig working face and synthesize dust removal integrated equipment belongs to the mine and synthesizes dustproof technical field.

Background

The existing mine dust prevention technology comprises the following steps of 1, coal dust water injection dust fall technology, which has the defects of complex equipment, large water consumption and difficult mastering of water injection technology and hole sealing technology; 2. the spraying dust settling has the defects that the dust settling effect is poor because the coal dust contains oily substances and has light weight and the water has high tension, so that the coal dust and the water are not easy to fuse. 3. Utilize dust exhausting fan to carry out the dust fall, its shortcoming is: the air volume for treatment is limited, and the requirement of a working face cannot be met; according to the first one hundred sixty three provisions of 2016 edition coal mine safety regulations, the semi-coal rock roadway of the high-gas outburst mine coal roadway does not use a draw-out dust removal fan any more.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem that prior art exists, the utility model provides an installation is simple, arranges rationally, presses down dirt, dust fall, dust removal purification from three angles such as producing dirt point, raise dust point, coal dust diffusion point, synthesizes dust collection integrated equipment of digging the working face that dust collection efficiency is high.

In order to achieve the purpose, the utility model discloses a technical scheme for combine and dig working face comprehensive dust removal integrated equipment, including install the foam dust suppression device on the machine of combining digging and install the wet-type pneumatic dust removal purifier who combines digging machine afterbody return air side, the foam dust suppression device mainly comprises box, foam generator and shower nozzle support, the box is fixed on the machine of combining digging, be provided with the foamer inlet pipe on the box, the foam generator is installed at the lateral part of box, install pressure wind inlet interface and foam discharging pipe on the foam generator, the shower nozzle support is installed at the machine of combining digging front end cutterhead 1.5-2 meters position, install a plurality of foam shower nozzles according to the circumstances on the shower nozzle support, the foam shower nozzle is connected with the foam discharging pipe;

the wet-type pneumatic dust removal and purification device comprises a dust remover shell, a pneumatic motor and an impeller, wherein the air duct is fixed on the roadheader through a support, the pneumatic motor is installed in the dust remover shell through a fixing frame, the impeller is installed on an output shaft of the pneumatic motor, an air pressing inlet pipe is installed on the outer wall of the dust remover shell and is connected with the pneumatic motor, a control ball valve is installed on the air pressing inlet pipe, three water mist nozzles are arranged on the circumferences of an air inlet end and an air outlet end of the dust remover shell, a water inlet distributor is installed at the top of the dust remover shell, a water outlet of the water inlet distributor is connected with the water mist nozzles through connecting pipes, and a water inlet of the water inlet distributor is connected with a static pressure mine water pipeline.

Preferably, the nozzle support mainly comprises an arc-shaped top plate, an arc-shaped back plate and a foam guide pipe, the arc-shaped back plate is fixed on the end face of the arc-shaped top plate, the two ends of the arc-shaped top plate are fixed at the positions of 1.5-2 meters of a front-end cutting head of the roadheader, a plurality of rib plates are arranged between the arc-shaped top plate and the arc-shaped back plate, fixing holes are formed in the rib plates, the foam guide pipe penetrates through the fixing holes, the foam nozzles are respectively installed on the foam guide pipe, a foam inlet connector is arranged on the foam guide pipe, and the foam inlet connector is connected with the foam discharge pipe.

Preferably, the number of the foam inlet joints is 2, the foam discharging pipe is provided with a foam distributor, and the two foam inlet joints are respectively connected with the foam distributor through connecting pipes.

Preferably, the fully-mechanized excavating machine is further provided with an automatic pipeline mixing and liquid adding device, and the automatic pipeline mixing and liquid adding device is connected with the inner and outer spraying water inlet pipelines of the fully-mechanized excavating machine.

Preferably, protective screens are further mounted at two ends of the dust remover shell, and a slag discharge port is further arranged at the rear end of the dust remover shell.

Compared with the prior art, the utility model discloses following technological effect has: the utility model discloses simple structure, simple to operate adopt the source to press down dirt, fall the dust midway, afterbody dust removal purifies etc. three direction to remove dust the combined excavation working face and handle, in the aspect of the source presses down dirt, forms 40-150 times foam after foam dust suppression liquid and water disposes according to certain proportion and spouts to the cutterhead around by the foam shower nozzle through the foam dust suppression device, wraps up the cutterhead, when the combined excavation machine cuts the coal and breaks the coal, the coal dust is wrapped up in the foam, covers the dust source, fundamentally prevents the dust outwards to spread; meanwhile, after the liquid forms foams, the total area and the total surface area are greatly increased, the collision efficiency with dust is increased, and the working environment of the underground mining face is purified; the development machine is used for reducing dust in midway, a spraying system is arranged on the development machine, an automatic pipeline liquid adding device is additionally arranged on an external spraying water supply pipeline, and special dust suppression liquid is added into the external spraying water supply pipeline, so that dust is more easily adhered after the special dust suppression liquid is combined with water, and the effect of optimizing the external spraying dust reduction effect is achieved; the tail part dust removal purification is that a wet type pneumatic dust removal purification device is installed on the tail part air return side of the fully-mechanized excavating machine, the impeller is driven to rotate by compressed air, and dust passes through the water mist curtain to be subjected to dust removal purification treatment on tail part dust.

Drawings

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

Fig. 2 is a schematic structural diagram of the middle foam dust suppression device of the present invention.

Fig. 3 is a schematic structural diagram of the middle pneumatic dust removal purification device of the utility model.

Fig. 4 is a side view of fig. 3.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 to 4, the comprehensive dust removal complete equipment for the fully mechanized excavation face comprises a foam dust suppression device 2 installed on a fully mechanized excavation machine 1 and a wet type pneumatic dust removal purification device 3 installed on a return air side at the rear part of the fully mechanized excavation machine 1, wherein the foam dust suppression device 2 mainly comprises a box body 3, a foam generator 4 and a nozzle support 5, the box body 3 is fixed on the fully mechanized excavation machine 1, a foaming agent feeding pipe 6 is arranged on the box body 3, the foam generator 4 is installed on the side part of the box body, a compressed air inlet interface 7 and a foam discharging pipe 8 are installed on the foam generator 4, the nozzle support 5 is installed at a position 1.5-2 meters away from a cutting head at the front end of the fully mechanized excavation machine 1, the nozzle support is installed at a position 1.5-2 meters away from the cutting head at the front end of the fully mechanized excavation machine, a plurality of foam nozzles 9 are installed;

the wet-type pneumatic dust removal and purification device 3 comprises a dust remover shell 10, a pneumatic motor 11 and an impeller 12, wherein the dust remover shell 10 is fixed on the roadheader 1 through a support, the pneumatic motor 11 is installed in the dust remover shell 10 through a fixing frame 13, the impeller 12 is installed on an output shaft of the pneumatic motor 11, a compressed air inlet pipe 14 is installed on the outer wall of the dust remover shell 10, the compressed air inlet pipe 14 is connected with the pneumatic motor 11, a control ball valve 15 is installed on the compressed air inlet pipe 14, three water spray nozzles 16 are arranged on the circumferences of an air inlet end and an air outlet end of the dust remover shell 10, a water inlet distributor 17 is installed at the top of the dust remover shell 10, water outlets of the water inlet distributor 17 are respectively connected with the water spray nozzles 16 through connecting pipes 18, and a water inlet of the water inlet distributor 17 is connected with a mine water main.

The utility model discloses in adopt three steps of dust removal methods, utilize the foam dust suppression device to cover the processing to the dirt source, utilize to combine the former inside and outside automatic liquid feeding mixing arrangement of spraying system installation pipeline of machine of digging to carry out liquid feeding dust fall and handle middle part raise dust, utilize the pneumatic dust removal purification device of wet-type to carry out dust removal purification to afterbody coal dust.

Specifically, foam dust suppression liquid and water are mixed according to a certain proportion and then are continuously conveyed into a box body, a compressed air inlet interface of a foam generator is connected with a mine compressed air main pipeline, formed foam is conveyed to a foam nozzle under the action of compressed air, the foam nozzle wraps a cutting head towards a coal wall and the cutting head of the roadheader, and when the roadheader cuts coal, the coal dust is wrapped in the foam to cover a dust source, so that the dust is fundamentally prevented from diffusing outwards; the part of dust flying up in the coal cutting process of the fully-mechanized coal mining machine is subjected to liquid adding and dust falling through an original internal and external spraying system of the fully-mechanized coal mining machine, so that the dust flying up is avoided. Part of dust flows to the tail part of the roadheader under the action of wind flow, a wet type pneumatic dust removal purifier is used for capturing, wetting and purifying, the wet type pneumatic dust removal device is driven by a pneumatic motor, the pneumatic motor is connected with mine compressed air, the pneumatic motor drives an impeller to rotate in a telling way, so that the dust is sucked from one end of the dust remover, the other end of the dust remover is blown out, the air flow behind the impeller moves spirally along the inner wall of a barrel body of the dust removal device when the air flow advances spirally by utilizing the aerodynamic characteristics, the air flow at the central part can flow to the boundary, the strong centrifugal force is greatly beneficial to separating airborne dust, meanwhile, three water spray nozzles are arranged on the inner walls at the front end and the rear end of a shell of the dust remover, water sprayed by the nozzles wraps the impeller, the dust passes through the dust remover, the impeller with water forcedly wets the dust, and the dust and the water are extruded, a water mist purification wall is formed at the rear end of the dust remover shell, so that the purposes of dust removal and purification are achieved. Protective screens 27 are further mounted at two ends of the dust remover shell 10, and the protective screens can prevent sundries from entering the air duct and damaging the impeller.

Wherein, the shower nozzle support 5 mainly comprises arc roof 19, arc backplate 20 and foam guide pipe 21, the terminal surface of arc roof 19 is fixed with arc backplate 20, the front end at coal-winning machine 1 is fixed at the both ends of arc roof 19, be provided with a plurality of gusset 22 between arc roof 19 and the arc backplate 20, all be provided with fixed orifices 23 on the gusset 22, it installs foam guide pipe 21 to run through in the fixed orifices 23, foam nozzle 9 installs respectively on foam guide pipe 21, be provided with foam inlet joint 24 on the foam guide pipe 21, foam inlet joint 24 is connected with foam discharging pipe 8. By adopting the structure, the arc-shaped top plate and the arc-shaped back plate can play a good role in protecting the spray head, the damage of the spray head is avoided, and the arrangement of the bubble guide pipe is also convenient. The number of the foam inlet joints 24 is 2, the foam discharging pipe 8 is provided with a foam distributor 25, and the two foam inlet joints 24 are respectively connected with the foam distributor 25 through connecting pipes. The bubble guide pipe is connected with the foam discharging pipe 8 through the two foam inlet connectors 24, so that the foam of the bubble guide pipe is uniform, and the dispersion effect of the foam nozzle is better.

In addition, the roadheader 1 is also provided with a pipeline automatic mixing and liquid feeding device 26, and the pipeline automatic mixing and liquid feeding device 26 is connected with an internal and external spraying water inlet pipeline of the roadheader. The automatic pipeline mixing and liquid adding device is the same as the prior art, the type is GZJH-15/3.5WS type automatic pipeline liquid adding and mixing device, the special dust suppression liquid is added into an external spraying water supply pipeline through the automatic pipeline liquid adding and mixing device, and dust is adhered to the special dust suppression liquid and water more easily after combination, so that the dust suppression effect is improved.

The foregoing is considered as illustrative and not restrictive of the preferred embodiments of the invention, and any modifications, equivalents and improvements made within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims

1. Combine and dig working face and synthesize dust removal integrated equipment, its characterized in that: the device comprises a foam dust suppression device arranged on a roadheader and a wet type pneumatic dust removal purification device arranged on the return air side of the roadheader, wherein the foam dust suppression device mainly comprises a box body, a foam generator and a nozzle support, the box body is fixed on the roadheader, the box body is provided with a foaming agent feeding pipe, the foam generator is arranged on the side part of the box body, the foam generator is provided with a compressed air inlet interface and a foam discharging pipe, the nozzle support is arranged at the position of 1.5-2 meters of a cutting head at the front end of the roadheader, the nozzle support is provided with a plurality of foam nozzles according to conditions, and the foam nozzles are connected with the foam discharging pipe;

the wet-type pneumatic dust removal and purification device comprises a dust remover shell, a pneumatic motor and an impeller, wherein the dust remover shell is fixed on a comprehensive excavator through a support, the pneumatic motor is installed in the dust remover shell through a fixing frame, the impeller is installed on an output shaft of the pneumatic motor, an air pressing inlet pipe is installed on the dust remover shell and is connected with the pneumatic motor, a control ball valve is installed on the air pressing inlet pipe, three water mist spray nozzles are arranged on the circumferences of an inlet end and an outlet end of the dust remover shell, a water inlet water distributor is installed at the top of the dust remover shell, a water outlet of the water inlet water distributor is connected with the water mist spray nozzles through a connecting pipe respectively, and a water inlet of the water inlet water distributor is connected with a mine water main pipeline.

2. The integrated dust removal complete device for the fully mechanized coal mining face of claim 1, wherein: the spray head support mainly comprises an arc-shaped top plate, an arc-shaped back plate and a foam guide pipe, the arc-shaped back plate is fixed on the end face of the arc-shaped top plate, the two ends of the arc-shaped top plate are fixed at the front end of a coal mining machine, a plurality of rib plates are arranged between the arc-shaped top plate and the arc-shaped back plate, fixing holes are formed in the rib plates, the foam guide pipe penetrates through the fixing holes, the foam spray heads are respectively installed on the foam guide pipe, a foam inlet joint is arranged on the foam guide pipe, and the foam inlet joint is connected with a foam discharge pipe.

3. The integrated dust removal complete device for the fully mechanized coal mining face of claim 2, wherein: the quantity of foam inlet joint is 2, be provided with the foam distributor on the foam discharging pipe, two the foam inlet joint is connected with the foam distributor through the connecting pipe respectively.

4. The integrated dust removal complete device for the fully mechanized coal mining face of claim 1, wherein: the automatic pipeline mixing and liquid adding device is further mounted on the roadheader and connected with an internal and external spraying water inlet pipeline of the roadheader.

5. The integrated dust removal complete device for the fully mechanized coal mining face of claim 1, wherein: protective screens are further mounted at two ends of the dust remover shell, and a slag discharge port is further formed in the rear end of the dust remover shell.