Ultrasonic synergistic electrostatic dust collection coal mine grouting material crushing device and use method

Abstract

The invention relates to an ultrasonic synergistic electrostatic dust collection coal mine grouting material crushing device and a use method, and belongs to the technical field of crushers. The device comprises a shell, a feeding bin, a jaw type crushing device, an ultrasonic crushing device and an electrostatic dust collection device, the feeding bin is arranged at the top of the shell, the jaw type crushing device, the ultrasonic crushing device and the electrostatic dust collection device are sequentially arranged in the shell from top to bottom, and the jaw type crushing device, the ultrasonic crushing device and the electrostatic dust collection device are all connected with a control system. The jaw type crushing device comprises a movable jaw, a fixed jaw and a hydraulic telescopic rod, the fixed jaw is fixedly arranged on one side of the top in the shell, the hydraulic telescopic rod is fixedly arranged on the other side of the top in the shell, and the movable jaw is arranged at the output end of the hydraulic telescopic rod. The high-frequency vibration and cavitation effect of ultrasonic waves are utilized, the crushing process of materials is accelerated, the crushing efficiency is remarkably improved, meanwhile, the ultrasonic crushing device is matched with the jaw type crushing device for secondary crushing, continuous crushing can be achieved, and the problem of non-continuous crushing of a traditional jaw type crushing machine is solved.

Description

Technical Field

[0001] The invention relates to an ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device and a use method thereof, belonging to the technical field of crushers. Background Art

[0002] Since its introduction, the traditional jaw crusher has been widely used in the crushing industry. Its advantages such as simple structure, reliable operation, easy manufacturing, convenient maintenance, and good adaptability make it widely used in mining, construction, highways and other fields. Especially in coal mining, the jaw crusher, as the main crushing equipment, undertakes the important task of crushing large pieces of coal into the required particle size. However, there are still many problems when it is used to crush coal grouting materials:

[0003] Low crushing efficiency: Traditional jaw crushers use a curved extrusion type crushing method. The crushing process is relatively slow, and continuous crushing cannot be achieved, resulting in low crushing efficiency.

[0004] High energy consumption: When the crushing compressive strength limit reaches a certain level, the crushing equipment will consume a lot of energy, but the crushing effect is not ideal, the electricity consumption and steel consumption are relatively large, and the energy-saving effect cannot be effectively achieved.

[0005] Small crushing ratio: The crushing ratio of traditional jaw crushers is relatively small, which makes it difficult to meet some application scenarios with high particle size requirements.

[0006] Noise and dust pollution: Jaw crushers will generate large noise and dust pollution during operation, which will have a certain impact on the environment and workers' health. Summary of the invention

[0007] In view of the shortcomings of the prior art, the present invention provides an ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device, which utilizes the high-frequency vibration and cavitation effect of ultrasonic waves to accelerate the crushing process of materials and significantly improve the crushing efficiency. At the same time, the ultrasonic crushing device is combined with a jaw crushing device for secondary crushing, so that it can be crushed continuously, avoiding the discontinuous crushing problem of traditional jaw crushers.

[0008] The present invention also provides a method for using the ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device.

[0009] The technical solution of the present invention is as follows:

[0010] The invention discloses an ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device, comprising a shell, a feeding bin, a jaw crushing device, an ultrasonic crushing device and an electrostatic dust removal device. The feeding bin is arranged on the top of the shell, and the jaw crushing device, the ultrasonic crushing device and the electrostatic dust removal device are arranged in sequence from top to bottom in the shell. The jaw crushing device, the ultrasonic crushing device and the electrostatic dust removal device are all connected with a control system, wherein the jaw crushing device comprises a movable jaw, a fixed jaw and a hydraulic telescopic rod, a fixed jaw is fixedly arranged on one side of the top of the shell, and a hydraulic telescopic rod is fixedly arranged on the other side, and a movable jaw is arranged on the output end of the hydraulic telescopic rod.

[0011] Preferably, according to the present invention, pulleys are symmetrically arranged on the top and bottom of the movable jaw, and slide rails matching the pulleys are arranged in the shell. The pulleys are utilized to ensure the movement stability of the movable jaw and provide a certain support to the movable jaw.

[0012] Preferably, according to the present invention, a valve is provided at the bottom of the feeding bin, and the feeding is stopped when there is too much material to prevent the equipment from being overloaded and damaged.

[0013] Preferably according to the present invention, the ultrasonic crushing device includes a mounting block, a piezoelectric crystal, an ultrasonic amplitude modulator, an ultrasonic amplifier and a diaphragm, wherein the mounting block is symmetrically arranged in the middle of the shell, and the piezoelectric crystal, the ultrasonic amplitude modulator and the ultrasonic amplifier are arranged in sequence on the outside of the mounting block, the piezoelectric crystal, the ultrasonic amplitude modulator and the ultrasonic amplifier are connected in sequence, and a diaphragm is arranged on the ultrasonic amplifier.

[0014] Preferably according to the present invention, the electrostatic dust removal device includes a high-voltage power supply, a transformer, a dust collecting electrode and a discharge electrode, wherein the high-voltage power supply is fixedly arranged on the outer side of the bottom of the shell, the high-voltage power supply is connected to the transformer, the dust collecting electrode and the discharge electrode are symmetrically arranged on the inner side of the bottom of the shell, the discharge electrode is connected to the transformer, and the charge carried by the dust collecting electrode and the charge carried by the discharge electrode are of opposite polarity so as to attract charged dust particles and collect them on the surface.

[0015] Preferably, according to the present invention, the discharge electrode is a columnar structure with a conical top, and the number is at least one. The discharge electrode structure helps to increase the electric field strength and promote the charging of dust particles. The dust collecting electrode is plate-shaped or elliptical and can collect dust over a large area. Materials with good conductivity and corrosion resistance are selected to ensure long-term stable operation.

[0016] Preferably, according to the present invention, an electric opening and closing door is provided between the jaw crushing device and the ultrasonic crushing device, and an electric opening and closing door is provided between the ultrasonic crushing device and the electrostatic dust removal device. The electric opening and closing door is an existing switch structure, and adjacent cavities are connected when opened.

[0017] The method for using the above-mentioned ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device comprises the following steps:

[0018] (1) The material enters the jaw crusher through the feed bin, and the hydraulic telescopic rod extends, driving the movable jaw to squeeze and crush the material. The crushing force can be adjusted by adjusting the telescopic length and power of the hydraulic telescopic rod to adapt to materials of different hardness and particle size;

[0019] (2) The material after preliminary crushing in step (1) enters the ultrasonic crushing device, and the piezoelectric crystal is energized to deform and generate high-frequency vibration, which is transmitted to the ultrasonic amplitude modulator. The ultrasonic amplitude modulator adjusts the vibration amplitude generated by the piezoelectric crystal. By adjusting the parameters of the ultrasonic amplitude modulator, the crushing effect can be accurately controlled, such as crushing particle size, crushing efficiency, etc. The ultrasonic amplifier amplifies the vibration signal transmitted by the ultrasonic amplitude modulator. The diaphragm is the final execution component of ultrasonic crushing and is connected to the ultrasonic amplifier. The diaphragm generates ultrasonic waves inside the material to achieve further crushing of the material;

[0020] (3) The material after ultrasonic crushing is discharged after passing through the electrostatic dust removal device.

[0021] Preferably, according to the present invention, in step (3), when the material passes through the electrostatic precipitator, the transformer increases the industrial frequency voltage output by the high-voltage power supply, and outputs high-voltage direct current after rectification and smoothing. The high-voltage direct current is output through the discharge electrode, and a large number of electrons and ions are formed in the shell. The electrons and ions collide with the dust particles in the air to make them carry an electric charge. The charged dust particles move toward the collecting electrode under the action of the electric field force and are adsorbed on the surface of the collecting electrode, thereby realizing dust collection.

[0022] The beneficial effects of the present invention are:

[0023] 1. The present invention utilizes the high-frequency vibration and cavitation effect of ultrasound to accelerate the crushing process of materials and significantly improve the crushing efficiency. At the same time, the ultrasonic crushing device cooperates with the jaw crushing device for secondary crushing, so that it can be crushed continuously, avoiding the discontinuous crushing problem of the traditional jaw crusher.

[0024] 2. The ultrasonic crushing device of the present invention crushes materials through high-frequency vibration, which can reduce energy consumption compared to the extrusion crushing method of the traditional jaw crusher. At the same time, the electrostatic dust removal device can effectively collect the dust generated during the crushing process, reduce the wear of the crusher by dust, and reduce dust emissions.

[0025] 3. The high-frequency vibration and cavitation effect of the ultrasonic crushing device of the present invention can crush the material more evenly, so that the particle size of the crushed material is more uniform and can meet the application scenarios with higher particle size requirements.

[0026] The noise generated by the high-frequency vibration of the ultrasonic crushing device of the present invention is relatively low, and the noise pollution can be further reduced by sound insulation measures. In addition, the high-frequency vibration can reduce the impact of materials on the crusher, reduce the failure rate of the crusher, and thus reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the ultrasonic crushing device of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the electrostatic precipitator of the present invention;

[0030] Among them: 1. Shell; 2. Feeding bin; 3. Jaw crushing device; 4. Ultrasonic crushing device; 5. Electrostatic dust removal device; 6. Control system

[0031] 31. Moving jaw; 32. Fixed jaw; 33. Hydraulic telescopic rod; 34. Pulley;

[0032] 41. Mounting block; 42. Piezoelectric crystal; 43. Ultrasonic amplitude modulator; 44. Ultrasonic amplifier; 45. Diaphragm;

[0033] 51. High voltage power supply; 52. Transformer; 53. Dust collecting electrode; 54. Discharge electrode. DETAILED DESCRIPTION

[0034] The present invention will be further described below by way of embodiments in conjunction with the accompanying drawings, but is not limited thereto.

[0035] Embodiment 1:

[0036] like Figure 1-3 As shown, this embodiment provides an ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device, including a shell 1, a feeding bin 2, a jaw crushing device 3, an ultrasonic crushing device 4 and an electrostatic dust removal device 5. The feeding bin 2 is arranged on the top of the shell 1, and the jaw crushing device 3, the ultrasonic crushing device 4 and the electrostatic dust removal device 5 are arranged in sequence from top to bottom in the shell 1. The jaw crushing device 3, the ultrasonic crushing device 4 and the electrostatic dust removal device 5 are all connected to a control system 6, wherein the jaw crushing device 3 includes a movable jaw 31, a fixed jaw 32 and a hydraulic telescopic rod 33, the fixed jaw 32 is fixedly arranged on one side of the top of the shell 1, and the hydraulic telescopic rod 33 is fixedly arranged on the other side, and the movable jaw 31 is arranged at the output end of the hydraulic telescopic rod 33.

[0037] Pulleys 34 are symmetrically arranged on the top and bottom of the movable jaw 31, and slide rails matching the pulleys are arranged in the housing 1. The pulleys are used to ensure the movement stability of the movable jaw and provide a certain support to the movable jaw.

[0038] A valve is provided at the bottom of the feeding bin 2 to stop feeding when there is too much material to prevent the equipment from being overloaded and damaged.

[0039] The ultrasonic crushing device 4 includes a mounting block 41, a piezoelectric crystal 42, an ultrasonic amplitude modulator 43, an ultrasonic amplifier 44 and a diaphragm 45, wherein the mounting block 41 is symmetrically arranged in the middle of the shell 1, and the piezoelectric crystal 42, the ultrasonic amplitude modulator 43 and the ultrasonic amplifier 44 are arranged in sequence on the outside of the mounting block 41. The piezoelectric crystal 42, the ultrasonic amplitude modulator 43 and the ultrasonic amplifier 44 are connected in sequence, and the diaphragm 45 is arranged on the ultrasonic amplifier 44.

[0040] The electrostatic precipitator 5 includes a high-voltage power supply 51, a transformer 52, a dust collecting electrode 53 and a discharge electrode 54, wherein the high-voltage power supply 51 is fixedly arranged on the outer side of the bottom of the shell 1, and the high-voltage power supply 51 is connected to the transformer 52, and the dust collecting electrode 53 and the discharge electrode 54 are symmetrically arranged on the inner side of the bottom of the shell 1, and the discharge electrode 54 is connected to the transformer 52. The charge carried by the dust collecting electrode 53 and the charge carried by the discharge electrode are opposite in polarity, so as to attract charged dust particles and collect them on the surface.

[0041] The discharge electrode 54 is a columnar structure with a conical top, and there is at least one discharge electrode. The discharge electrode structure helps to increase the electric field strength and promote the charging of dust particles. The dust collecting electrode 53 is plate-shaped or elliptical and can collect dust over a large area. Materials with good conductivity and corrosion resistance are selected to ensure long-term stable operation.

[0042] An electric opening and closing door is provided between the jaw crushing device 3 and the ultrasonic crushing device 4, and an electric opening and closing door is provided between the ultrasonic crushing device 4 and the electrostatic dust removal device 5. The electric opening and closing door is an existing switch structure, and adjacent cavities are connected when opened.

[0043] The method for using the above-mentioned ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device comprises the following steps:

[0044] (1) The material enters the jaw crusher 3 through the feed bin 2, and the hydraulic telescopic rod 33 extends, driving the movable jaw 31 to squeeze and crush the material. The crushing force can be adjusted by adjusting the telescopic length and power of the hydraulic telescopic rod to adapt to materials of different hardness and particle size;

[0045] (2) The material after preliminary crushing in step (1) enters the ultrasonic crushing device 4, and the piezoelectric crystal 42 is energized to deform and generate high-frequency vibration, and the vibration is transmitted to the ultrasonic amplitude modulator 43. The ultrasonic amplitude modulator 43 adjusts the vibration amplitude generated by the piezoelectric crystal. By adjusting the parameters of the ultrasonic amplitude modulator, it is possible to achieve precise control of the crushing effect, such as crushing particle size, crushing efficiency, etc. The ultrasonic amplifier 44 amplifies the vibration signal transmitted by the ultrasonic amplitude modulator. The diaphragm 45 is the final execution component of ultrasonic crushing and is connected to the ultrasonic amplifier 44. The diaphragm 45 generates ultrasonic waves inside the material to achieve further crushing of the material;

[0046] (3) The material after ultrasonic crushing passes through the electrostatic precipitator 5 and is discharged. When the material passes through the electrostatic precipitator, the transformer 52 increases the industrial frequency voltage output by the high-voltage power supply 51, and outputs high-voltage direct current after rectification and smoothing. The high-voltage direct current is output through the discharge electrode 54, forming a large number of electrons and ions in the shell. The electrons and ions collide with the dust particles in the air, causing them to be charged. The charged dust particles move toward the dust collecting electrode under the action of the electric field force and are adsorbed on the surface of the dust collecting electrode 53, thereby realizing dust collection.

[0047] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, 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. An ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device, characterized in that: The invention comprises a shell, a feeding bin, a jaw crushing device, an ultrasonic crushing device and an electrostatic dust collector. A feeding bin is arranged on the top of the shell. The jaw crushing device, the ultrasonic crushing device and the electrostatic dust collector are arranged in sequence from top to bottom in the shell. The jaw crushing device, the ultrasonic crushing device and the electrostatic dust collector are all connected with a control system. The jaw crushing device comprises a movable jaw, a fixed jaw and a hydraulic telescopic rod. A fixed jaw is fixedly arranged on one side of the top of the shell, and a hydraulic telescopic rod is fixedly arranged on the other side. A movable jaw is arranged on the output end of the hydraulic telescopic rod.

2. The ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device according to claim 1 is characterized in that: The top and bottom of the movable jaw are symmetrically provided with pulleys, and a slide rail matching the pulleys is provided in the shell.

3. The ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device according to claim 1 is characterized in that: A valve is provided at the bottom of the feeding bin.

4. The ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device according to claim 1 is characterized in that: The ultrasonic crushing device includes a mounting block, a piezoelectric crystal, an ultrasonic amplitude modulator, an ultrasonic amplifier and a diaphragm, wherein the mounting block is symmetrically arranged in the middle of the shell, and the piezoelectric crystal, the ultrasonic amplitude modulator and the ultrasonic amplifier are arranged in sequence on the outside of the mounting block. The piezoelectric crystal, the ultrasonic amplitude modulator and the ultrasonic amplifier are connected in sequence, and a diaphragm is arranged on the ultrasonic amplifier.

5. The ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device according to claim 4 is characterized in that: The electrostatic precipitator includes a high-voltage power supply, a transformer, a dust collecting electrode and a discharge electrode, wherein a high-voltage power supply is fixedly arranged on the outer side of the bottom of the shell, the high-voltage power supply is connected to the transformer, and a dust collecting electrode and a discharge electrode are symmetrically arranged on the inner side of the bottom of the shell, the discharge electrode is connected to the transformer, and the charge carried by the dust collecting electrode and the charge carried by the discharge electrode are opposite in polarity.

6. The ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device according to claim 5, characterized in that: The discharge pole is a columnar structure with a conical top, and there is at least one discharge pole, and the dust collecting pole is plate-shaped or elliptical.

7. The ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device according to claim 1, characterized in that: An electric opening and closing door is arranged between the jaw crushing device and the ultrasonic crushing device, and an electric opening and closing door is arranged between the ultrasonic crushing device and the electrostatic dust removal device.

8. The method for using the ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device according to claim 5, characterized in that: Here are the steps: (1) The material enters the jaw crusher through the feed bin, and the hydraulic telescopic rod extends, driving the movable jaw to squeeze and crush the material; (2) After the preliminary crushing in step (1), the material enters the ultrasonic crushing device, and the piezoelectric crystal is energized to deform and generate high-frequency vibration. The vibration is transmitted to the ultrasonic amplitude modulator, which adjusts the vibration amplitude generated by the piezoelectric crystal. The ultrasonic amplifier amplifies the vibration signal transmitted by the ultrasonic amplitude modulator. The diaphragm is the final actuator of ultrasonic crushing and is connected to the ultrasonic amplifier. The diaphragm generates ultrasonic waves inside the material to achieve further crushing of the material; (3) The material after ultrasonic crushing is discharged after passing through the electrostatic dust removal device.

9. The method for using the ultrasonic enhanced electrostatic dust removal coal mine grouting material crushing device as claimed in claim 8, characterized in that: In step (3), when the material passes through the electrostatic dust removal device, the transformer increases the industrial frequency voltage output by the high-voltage power supply, and outputs high-voltage direct current after rectification and smoothing. The high-voltage direct current is output through the discharge electrode, forming a large number of electrons and ions in the shell. The electrons and ions collide with the dust particles in the air, causing them to be charged. The charged dust particles move toward the dust collecting electrode under the action of the electric field force and are adsorbed on the surface of the dust collecting electrode, thereby realizing dust collection.

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