Dust removal device for heading machine

Abstract

The utility model relates to the technical field of coal mine heading machines, and discloses a dust removal device for a heading machine, a dust removal spray seat is arranged at the upper part of a dust suction port, a dust removal spray head is arranged at the lower part of the dust removal spray seat, and an exhaust fan blade and a centrifugal net cylinder respectively rotate on the inner sides of an exhaust cylinder seat and a separation cylinder seat under the driving of a driving motor; the dust removal spraying base is arranged at the dust collection opening in the front of the dust removal box base, the exhaust fan blades are arranged in the dust removal box base, external dust is sucked into the dust collection opening through the exhaust fan blades, and the dust is adsorbed and settled through water mist sprayed out of the dust removal spraying base, so that the dust generated when the heading machine works can be effectively removed; a centrifugal separation structure is adopted, dust adsorbed by water mist is separated from water liquid through rotary centrifugation of the centrifugal net barrel after flowing into the centrifugal net barrel, water liquid separation and recovery can be achieved, water liquid outflow waste is avoided, meanwhile, water liquid can be effectively recycled, and the water-liquid separation and recovery efficiency is improved. Field operation is facilitated, and a large amount of water can be saved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine tunneling machines, in particular to a dust removal device for tunneling machines. Background Art

[0002] A roadheader is a machine commonly used to excavate tunnels on flat ground. The roadheader has a cutting part located at the front, and a tunneling head is arranged in front of the cutting part. As the traveling mechanism moves forward, the tunneling head continuously breaks up the rock and transports the broken rock away. It has the advantages of safety, high efficiency and good tunnel quality.

[0003] In order to reduce dust pollution, atomizing nozzles are usually installed on the top of conventional tunnel boring machines. When working, the atomizing nozzles can spray out dust. However, due to the large operating range of the tunnel boring head, the water mist sprayed by the atomizing nozzle can absorb and settle the dust. Since the water mist continues to spray outward, a large amount of water will be wasted, and the water mixed with dust will flow on the ground, which will have a certain impact on the operation of personnel and equipment. Utility Model Content

[0004] The purpose of the utility model is to provide a dust removal device for a roadheader to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a dust removal device for a roadheader, comprising a dust removal box seat, a dust suction port is arranged at the front of the dust removal box seat, a dust removal nozzle seat is arranged at the upper part of the dust suction port, and a dust removal nozzle head is arranged at the lower part of the dust removal nozzle seat;

[0006] A centrifugal mechanism is arranged inside the dust removal spray seat, and the centrifugal mechanism includes a driving shaft, exhaust fan blades, a centrifugal net cylinder and a driving motor. An exhaust cylinder seat and a separation cylinder seat are respectively arranged on the upper and lower sides of the dust removal box seat. The exhaust fan blades and the centrifugal net cylinder are driven by the driving motor to rotate on the inner sides of the exhaust cylinder seat and the separation cylinder seat respectively.

[0007] Preferably, a dust removal chamber is provided inside the dust removal box seat, a guide slope is provided at the bottom of the dust removal chamber, the dust suction port is provided at the front opening side of the dust removal chamber, and the dust removal nozzle seat is fixed to the inner upper part of the dust suction port by bolts.

[0008] Preferably, the above-mentioned dust removal nozzles are provided in plurality, and a plurality of the dust removal nozzles are evenly and equidistantly fixed on the lower part of the dust removal nozzle seat, and a water-liquid interface is provided on the top of the dust removal nozzle seat, and the water-liquid interface is communicated with the dust removal nozzles.

[0009] Preferably, shaft supports are fixed on both sides of the rear of the dust removal chamber, and there are two driving shafts, which are rotatably mounted on both sides of the interior of the dust removal box seat through the shaft supports.

[0010] Preferably, two of the above-mentioned separation cylinder seats and exhaust cylinder seats are provided, and the two separation cylinder seats are symmetrically fixed on both sides of the bottom of the dust removal box seat, and the centrifugal net cylinder is rotatably installed inside the separation cylinder seat. The centrifugal net cylinder is fixedly installed at the lower part of the driving shaft, and the rear part of the separation cylinder seat is fixedly connected to a drainage trough pipe.

[0011] Preferably, the two exhaust cylinder seats are symmetrically fixed on both sides of the top of the dust removal box seat, and the exhaust fan blades are rotatably installed on the inner side of the exhaust cylinder seat, and the exhaust fan blades are fixedly installed on the top of the shaft of the driving shaft.

[0012] Preferably, a closed base is fixed to the bottom of the separation cylinder seat by bolts, the drive motor is fixedly installed on the bottom of the closed base by bolts, and the bottom end of the drive shaft is fixedly connected to the drive shaft end of the drive motor.

[0013] Compared with the prior art, the utility model adopts the above technical solution and has the following technical effects:

[0014] The dust removal device adopts a dust removal method that combines air suction with water mist adsorption and sedimentation. A dust removal nozzle seat is arranged at the front dust suction port of the dust removal box seat, and exhaust fan blades are arranged inside the dust removal box seat. The exhaust fan blades are used to suck external dust into the dust suction port, and the dust is adsorbed and settled by the water mist sprayed by the dust removal nozzle seat, which can effectively remove the dust generated when the tunnel boring machine is working. In addition, a centrifugal separation structure is adopted. After the dust adsorbed by the water mist flows into the centrifugal net cylinder, it is separated from the water liquid by the rotating centrifugal force of the centrifugal net cylinder, so the separation and recovery of the water liquid can be realized. While avoiding the waste of water liquid outflow, the water liquid can be effectively recycled and utilized, which is beneficial to the site operation and can save a large amount of water liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall front structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall rear structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the overall lower structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the separation mechanism structure of the utility model;

[0020] Figure 5 It is a schematic diagram of the lower structure inside the dust removal box seat of the utility model.

[0021] Explanation of the reference numerals: 1. Dust removal box seat; 2. Dust suction port; 3. Dust removal nozzle seat; 4. Dust removal nozzle; 5. Water-liquid interface; 6. Driving shaft; 7. Exhaust fan blades; 8. Centrifugal net cylinder; 9. Driving motor; 10. Separation cylinder seat; 11. Closed base; 12. Drain trough pipe; 13. Rotating shaft support; 14. Exhaust cylinder seat. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0024] Example

[0025] See also Figure 1-5 The utility model provides a technical solution: a dust removal device for a roadheader, comprising a dust removal box seat 1. In order to facilitate the recovery of water, a dust removal chamber is arranged inside the dust removal box seat 1. In order to facilitate the suction of dust, a dust suction port 2 is arranged at the front of the dust removal box seat 1. The dust suction port 2 is arranged at the front opening side of the dust removal chamber. Figure 3 As shown, in order to adsorb and settle the dust, a dust removal nozzle seat 3 is arranged at the upper part of the dust suction port 2, and the dust removal nozzle seat 3 is fixed to the inner upper part of the dust suction port 2 by bolts. In order to perform water atomization, a dust removal nozzle 4 is arranged at the lower part of the dust removal nozzle seat 3. There are multiple dust removal nozzles 4, and several dust removal nozzles 4 are evenly fixed at the lower part of the dust removal nozzle seat 3 at equal distances. In order to provide water, a water interface 5 is arranged on the top of the dust removal nozzle seat 3. The water interface 5 is connected to the external pump body through a hose, and the water interface 5 is connected to the dust removal nozzle 4.

[0026] In order to facilitate the separation and recovery of the water liquid, a centrifugal mechanism is arranged inside the dust removal nozzle seat 3, and the centrifugal mechanism includes a driving shaft 6, exhaust fan blades 7, a centrifugal net cylinder 8 and a driving motor 9. In order to facilitate the rotation support of the driving shaft 6, as shown in the attached Figure 5 As shown, shaft supports 13 are fixed on both sides of the rear of the dust removal chamber, the number of driving shafts 6 is two, and the two driving shafts 6 are rotatably mounted on both sides of the interior of the dust removal box seat 1 through the shaft supports 13. There are two separation cylinder seats 10 and exhaust cylinder seats 14. In order to facilitate the exhaust operation, as shown in the attached Figure 1 As shown, two exhaust cylinder seats 14 are symmetrically fixed on both sides of the top of the dust removal box seat 1, and the exhaust fan blades 7 are rotatably installed on the inner side of the exhaust cylinder seat 14. The exhaust fan blades 7 are fixedly installed on the top of the rotating shaft of the driving shaft 6. The exhaust fan blades 7 can be used to suck external dust into the dust suction port 2, and the dust is adsorbed and settled by the water mist sprayed by the dust removal spray seat 3, which can effectively remove the dust generated when the tunnel boring machine is working.

[0027] In order to facilitate the separation of water and liquid, Figure 3 As shown, the two separation cylinder seats 10 are symmetrically fixed on both sides of the bottom of the dust removal box seat 1, the centrifugal net cylinder 8 is made of metal, and a centrifugal filter is arranged on the side of the centrifugal net cylinder 8. The centrifugal net cylinder 8 is rotatably installed inside the separation cylinder seat 10, and the centrifugal net cylinder 8 is fixedly installed on the lower part of the driving shaft 6. The centrifugal net cylinder 8 adopts a mosaic structure and a bolt limit installation and fixing. When necessary, the centrifugal net cylinder 8 can be disassembled and removed by opening the closed base 11. In order to facilitate the diversion and convergence of the water, as shown in the attached Figure 5 As shown, a guide slope is provided at the bottom of the dust removal chamber. Under the guiding effect of the guide slope, the water mixed with dust can flow into the interior of the centrifugal net cylinder 8. In order to facilitate the rotational drive of the driving shaft 6, a closed base 11 is fixed at the bottom of the separation cylinder seat 10 by bolts, and the driving motor 9 is fixedly installed on the bottom of the closed base 11 by bolts. The bottom end of the driving shaft 6 is fixedly connected to the driving shaft end of the driving motor 9. The centrifugal net cylinder 8 rotates on the inner side of the separation cylinder seat 10 under the drive of the driving motor 9. A centrifugal separation structure is adopted. After the dust adsorbed by the water mist flows into the centrifugal net cylinder 8, it is separated from the water by the rotation of the centrifugal net cylinder 8, so that the separation and recovery of the water can be realized. While avoiding the waste of water outflow, the water can be effectively recycled and utilized. In order to facilitate the recovery and transportation of the water, a drainage trough pipe 12 is fixedly connected to the rear part of the separation cylinder seat 10, and the drainage trough pipe 12 is connected to the external water collection box.

[0028] Working principle or structural principle, when working, the exhaust fan blades 7 on both sides rotate under the drive of the driving motor 9, and at the same time, the water is sprayed out through the dust removal nozzle 4 at the bottom of the dust removal nozzle seat 3 to form a dust reduction water curtain. Under the suction action of the exhaust fan blades 7, the dust generated by the external tunneling machine is sucked into the dust suction port 2, and the dust adsorbed and settled by the atomized water curtain follows the water mist to the inside of the dust removal box seat 1. After liquefaction, it flows into the inside of the centrifugal net cylinder 8 through the groove surface guide at the bottom of the dust removal box seat 1. In the centrifugal net cylinder 8, the dust is separated from the water by the centrifugal action of the rotation of the centrifugal net cylinder 8, and the coal dust stays in the inside of the centrifugal net cylinder 8. At the same time, the water enters the inside of the separation cylinder seat 10 under the centrifugal action, and then flows out from the drainage groove pipe 12 set at the rear of the separation cylinder seat 10 into the inside of the collecting water tank, completing the recycling of the water. After that, the dust-removed air is discharged to the outside through the exhaust cylinder seat 14 under the exhaust action of the exhaust fan blades 7, completing the dust removal operation.

[0029] In summary, the dust removal device adopts a dust removal method that combines air suction with water mist adsorption and sedimentation. A dust removal nozzle seat 3 is provided at the front dust suction port 2 of the dust removal box seat 1, and an exhaust fan blade 7 is provided inside the dust removal box seat 1. The exhaust fan blade 7 is used to suck external dust into the dust suction port 2, and the dust is adsorbed and precipitated by the water mist sprayed by the dust removal nozzle seat 3, which can effectively remove the dust generated when the tunnel boring machine is working. In addition, a centrifugal separation structure is adopted. After the dust adsorbed by the water mist flows into the centrifugal net cylinder 8, it is separated from the water by the rotating centrifugation of the centrifugal net cylinder 8, so that the separation and recovery of the water can be realized. While avoiding the waste of water outflow, the water can be effectively recycled and utilized, which is beneficial to the site operation and can save a large amount of water.

[0030] So far, the embodiments of the utility model have been described in detail in conjunction with the accompanying drawings. It should be noted that the implementation methods not shown or described in the drawings or the body of the specification are all forms known to ordinary technicians in the relevant technical field and are not described in detail. In addition, the above definitions of each component are not limited to the various specific structures, shapes or methods mentioned in the embodiments, and ordinary technicians in the field can simply change or replace them.

[0031] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust removal device for a tunnel boring machine, comprising a dust removal box seat (1), Features: The front part of the dust removal box seat (1) is provided with a dust suction port (2), the upper part of the dust suction port (2) is provided with a dust removal nozzle seat (3), and the lower part of the dust removal nozzle seat (3) is provided with a dust removal nozzle head (4); A centrifugal mechanism is arranged inside the dust removal spray seat (3), and the centrifugal mechanism comprises a driving shaft (6), exhaust fan blades (7), a centrifugal net cylinder (8) and a driving motor (9); an exhaust cylinder seat (14) and a separation cylinder seat (10) are arranged on the upper and lower sides of the dust removal box seat (1), respectively; the exhaust fan blades (7) and the centrifugal net cylinder (8) are driven by the driving motor (9) to rotate on the inner sides of the exhaust cylinder seat (14) and the separation cylinder seat (10), respectively.

2. A dust removal device for a tunnel boring machine according to claim 1, Features: The dust removal box seat (1) is provided with a dust removal chamber inside, the bottom of the dust removal chamber is provided with a guide slope, the dust suction port (2) is provided at the front opening side of the dust removal chamber, and the dust removal nozzle seat (3) is fixedly installed on the inner upper part of the dust suction port (2) by means of bolts.

3. A dust removal device for a tunnel boring machine according to claim 2, Features: A plurality of the dust removal nozzles (4) are provided, and a plurality of the dust removal nozzles (4) are evenly fixed at an equidistant position on the lower portion of the dust removal nozzle seat (3). A water-liquid interface (5) is provided on the top of the dust removal nozzle seat (3), and the water-liquid interface (5) is in communication with the dust removal nozzles (4).

4. A dust removal device for a tunnel boring machine according to claim 2, Features: Rotating shaft supports (13) are fixed on both sides of the rear of the dust removal chamber. The number of the driving rotating shafts (6) is two, and the two driving rotating shafts (6) are rotatably mounted on both sides of the interior of the dust removal box seat (1) through the rotating shaft supports (13).

5. A dust removal device for a tunnel boring machine according to claim 4, Features: The separation cylinder seat (10) and the exhaust cylinder seat (14) are both provided with two, and the two separation cylinder seats (10) are symmetrically fixed to the two sides of the bottom of the dust removal box seat (1), and the centrifugal net cylinder (8) is rotatably installed inside the separation cylinder seat (10), and the centrifugal net cylinder (8) is fixedly installed at the lower part of the driving shaft (6), and the rear part of the separation cylinder seat (10) is fixedly connected to a drainage trough pipe (12).

6. A dust removal device for a tunnel boring machine according to claim 5, Features: The two exhaust cylinder seats (14) are symmetrically fixed on both sides of the top of the dust removal box seat (1), and the exhaust fan blades (7) are rotatably installed on the inner side of the exhaust cylinder seat (14). The exhaust fan blades (7) are fixedly installed on the top of the shaft of the driving shaft (6).

7. A dust removal device for a tunnel boring machine according to claim 6, Features: The bottom of the separation cylinder seat (10) is fixed with a closed base (11) by bolts, the drive motor (9) is fixedly installed on the bottom of the closed base (11) by bolts, and the bottom end of the drive shaft (6) is fixedly connected to the drive shaft end of the drive motor (9).

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