Dust removal device for coal separator

Abstract

The dust removal device structurally comprises a connecting pipe and an exhaust fan, an exhaust inlet is formed in one end of the connecting pipe, the other end of the connecting pipe is connected with the exhaust fan, an exhaust outlet is formed in the outer portion of the exhaust fan, the dust removal device further comprises a filtering mechanism used for filtering coal ash, and the filtering mechanism comprises a filter screen. A connecting plate is fixedly arranged on the inner side of the connecting pipe, springs are fixedly arranged at the four corners of the filter screen, one end of each spring is connected with the connecting plate, and the other end of each spring is connected with the filter screen; the discharging mechanism is used for discharging coal ash filtered by the filtering mechanism, the discharging mechanism comprises a sealing door, a discharging opening is formed in the lower portion of the connecting pipe, and the sealing door is movably connected with the discharging opening. The utility model belongs to the field of coal separators, and particularly relates to a dust removal device for a coal separator.

Description

Technical Field

[0001] The utility model belongs to the field of coal preparation machines, in particular to a dust removal device for coal preparation machines. Background Art

[0002] Raw coal is inevitably mixed with impurities during its generation, mining and transportation. In order to reduce the impurities in raw coal and effectively and rationally utilize coal resources, it is necessary to separate coal into various products according to quality and specifications. Coal preparation machines are needed to screen the coal. When the coal preparation machine is in use, the coal ash attached to the surface will be dispersed and discharged in large quantities during the rolling and shaking of the coal, which is likely to cause air pollution in the workshop. Therefore, a dust removal device for the coal preparation machine is needed.

[0003] The existing dust removal device for coal preparation machine adopts a filter structure to quickly filter the air mixed with coal ash in the coal preparation machine. However, after long-term use, the gap of the filter is prone to blockage, affecting the subsequent ventilation and filtering effects. In addition, the coal ash filtered by the filter device in the dust removal device is prone to remain inside the device. After long-term operation, the pipeline is prone to blockage, affecting the operation of the dust removal device. The existing dust removal device for coal preparation machine is equipped with a relatively complex cleaning structure, the operation is relatively complex, and the production cost is relatively high. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the gap of the filter screen is easy to be blocked, the pipeline of the dust removal device is easy to be blocked, and the dust cleaning is relatively complicated.

[0005] In order to solve the above problems, the technical solution adopted by the utility model is as follows: the dust removal device for a coal preparation machine proposed in the utility model includes a connecting pipe and an exhaust fan, one end of the connecting pipe is provided with an air suction port, the other end of the connecting pipe is connected to the exhaust fan, and an exhaust port is provided on the outside of the exhaust fan, and also includes: a filtering mechanism for filtering coal ash, the filtering mechanism includes a filter screen, a connecting plate is fixedly provided on the inner side of the connecting pipe, and springs are fixedly provided at the four corners of the filter screen, one end of the spring is connected to the connecting plate, and the other end of the spring is connected to the filter screen; a discharging mechanism for discharging the coal ash filtered by the filtering mechanism, the discharging mechanism includes a sealing door, a discharging port is provided at the lower part of the connecting pipe, and the sealing door and the discharging port are movably connected.

[0006] Furthermore, the filtering mechanism also includes a vibration motor, which is arranged inside the connecting pipe, the vibration motor is connected to the filter screen, and the filter screen is slidably connected to the inner wall of the connecting pipe.

[0007] Furthermore, the discharge mechanism also includes a connecting rod and a hydraulic cylinder, both sides of the discharge port are arranged as slope structures, and the lower part of the filter screen is movably connected to the slope structure on the left side of the discharge port.

[0008] Furthermore, the fixed end of the hydraulic cylinder is fixedly connected to the lower part of the connecting pipe, one end of the connecting rod is fixedly connected to the top of the movable end of the hydraulic cylinder, and the other end of the connecting rod is fixedly connected to the lower part of the sealing door.

[0009] Furthermore, a sealing strip is provided at the lower portion of the discharge port.

[0010] The beneficial effects achieved by the utility model using the above structure are as follows:

[0011] 1. The dust removal device for coal preparation machine proposed in this scheme sets a filtering mechanism in the connecting pipe, connects the filter screen and the connecting pipe through a spring, and connects a vibration motor to the filter screen. It can filter the coal ash to ensure the cleanliness of the workshop air, and at the same time, shake off the coal ash retained in the mesh of the filter screen to avoid clogging of the filter screen and affect the ventilation and filtering effects.

[0012] 2. The dust removal device for the coal preparation machine proposed in this scheme is equipped with a discharge mechanism at the lower part of the connecting pipe, and uses a hydraulic cylinder to drive the sealing door to move and control the discharge port switch. It has a simple structure, can quickly discharge the coal ash in the connecting pipe to avoid blockage of the connecting pipe, and is convenient for collecting and reusing the coal ash to reduce waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a first overall structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall cross section of the utility model;

[0015] Figure 3 This is a second overall structural schematic diagram of the utility model.

[0016] Among them, 1. connecting pipe, 101. air suction port, 2. filtering mechanism, 201. connecting plate, 202. spring, 203. filter screen, 204. vibration motor, 3. discharging mechanism, 301. discharging port, 302. sealing door, 303. connecting rod, 304. hydraulic cylinder, 305. sealing strip, 4. exhaust fan, 401. exhaust port.

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] As Figure 1 and Figure 2 shown, a dust removal device for a coal separator proposed by the present invention includes a connecting pipe 1 and a suction fan 4. One end of the connecting pipe 1 is provided with a suction port 101, the other end of the connecting pipe 1 is connected to the suction fan 4, and an exhaust port 401 is provided outside the suction fan 4. It further includes: a filtering mechanism 2 for filtering coal ash, the filtering mechanism 2 includes a filter screen 203, a connecting plate 201 is fixedly provided inside the connecting pipe 1, springs 202 are fixedly provided at the four corners of the filter screen 203, one end of the spring 202 is connected to the connecting plate 201, and the other end of the spring 202 is connected to the filter screen 203; a discharging mechanism 3 for discharging the coal ash filtered by the filtering mechanism 2, the discharging mechanism 3 includes a sealing door 302, a discharging port 301 is provided at the lower part of the connecting pipe 1, and the sealing door 302 is movably connected to the discharging port 301.

[0020] As Figure 1 , Figure 2 and Figure 3 shown, the filtering mechanism 2 further includes a vibration motor 204, the vibration motor 204 is arranged inside the connecting pipe 1, the vibration motor 204 is connected to the filter screen 203, and the filter screen 203 is slidably connected to the inner wall of the connecting pipe 1 for controlling the shaking of the filter screen 203. The discharging mechanism 3 further includes a connecting rod 303 and a hydraulic cylinder 304. Both sides of the discharging port 301 are provided with a slope structure. The lower part of the filter screen 203 is movably connected to the left slope structure of the discharging port 301, which is convenient for collecting and discharging the filtered coal ash. The fixed end of the hydraulic cylinder 304 is fixedly connected to the lower part of the connecting pipe 1. One end of the connecting rod 303 is fixedly connected to the top of the movable end of the hydraulic cylinder 304, and the other end of the connecting rod 303 is fixedly connected to the lower part of the sealing door 302 to control the movement of the sealing door 302 for controlling the opening and closing of the discharging port 301. A sealing strip 305 is provided at the lower part of the discharging port 301 for sealing the connection between the sealing door 302 and the discharging port 301 to prevent the escape of coal ash and air inside the connecting pipe 1.

[0021] During specific use, the air suction port 101 is connected to the air outlet of the coal preparation machine, and the exhaust fan 4 is started to extract the air mixed with coal ash in the coal preparation machine through the connecting pipe 1 and the air suction port 101. The coal ash dust in the air is filtered by the filter screen 203 and then discharged from the exhaust port 401. The vibration motor 204 in the connecting pipe 1 is set to start at a timed interval. When the vibration motor 204 is turned on, the filter screen 203 starts to vibrate with the auxiliary connection of the spring 202, and the coal ash remaining on the filter screen 203 is shaken off to the upper part of the discharge port 301, so as to avoid the clogging of the mesh of the filter screen 203 after a long period of filtering work, which affects the ventilation effect. In addition, the air filtered by the filter screen 203 can remove the mixed coal ash, so as to ensure the cleanliness of the workshop air and avoid the large amount of coal ash discharged from the coal preparation machine.

[0022] After the exhaust filtration is completed, the hydraulic cylinder 304 is extended to drive the connecting rod 303 and the sealing door 302 to move downward, and the discharge port 301 is opened. At this time, the coal ash collected and accumulated on the discharge port 301 can be quickly discharged. The structure is simple, and while avoiding the blockage of the internal pipeline of the connecting pipe 1, the coal ash can be collected and reused, reducing production waste.

[0023] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A dust removal device for a coal preparation machine, comprising a connecting pipe and an exhaust fan, wherein one end of the connecting pipe is provided with an air suction port, the other end of the connecting pipe is connected to the exhaust fan, and an exhaust port is provided outside the exhaust fan, characterized in that: Also includes: A filter mechanism for filtering coal ash, the filter mechanism comprising a filter screen, a connecting plate fixedly arranged on the inner side of the connecting pipe, springs fixedly arranged at the four corners of the filter screen, one end of the spring being connected to the connecting plate, and the other end of the spring being connected to the filter screen; The discharging mechanism is used for discharging the coal ash filtered by the filtering mechanism, the discharging mechanism comprises a sealing door, a discharging port is provided at the lower part of the connecting pipe, and the sealing door and the discharging port are movably connected.

2. A dust removal device for a coal preparation machine according to claim 1, characterized in that: The filtering mechanism further comprises a vibration motor, which is arranged inside the connecting pipe, the vibration motor is connected to the filter screen, and the filter screen is slidably connected to the inner wall of the connecting pipe.

3. A dust removal device for a coal preparation machine according to claim 2, characterized in that: The discharge mechanism also includes a connecting rod and a hydraulic cylinder. Both sides of the discharge port are provided with a slope structure. The lower part of the filter screen is movably connected to the slope structure on the left side of the discharge port.

4. A dust removal device for a coal preparation machine according to claim 3, characterized in that: The fixed end of the hydraulic cylinder is fixedly connected to the lower part of the connecting pipe, one end of the connecting rod is fixedly connected to the top of the movable end of the hydraulic cylinder, and the other end of the connecting rod is fixedly connected to the lower part of the sealing door.

5. A dust removal device for a coal preparation machine according to claim 4, characterized in that: A sealing strip is arranged at the lower part of the discharge port.

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