A cyclone scraper dust collector for a coal conveying system

Abstract

This utility model discloses a cyclone scraper dust collector for a coal conveying system, including a settling tank with an outer cylinder on its upper side. An inner cylinder is fixedly connected inside the outer cylinder. The system also includes a dust removal mechanism. The dust removal mechanism includes cyclone vanes, a demister, a sludge collection hopper, a filter screen, and a wastewater collection tank. The wastewater collection tank is fixedly connected to the upper end of the settling tank. The lower end of the outer cylinder is fixedly connected to the upper end of the wastewater collection tank. A cyclone vane is rotatably connected to the upper inside of the inner cylinder. A demister is fixedly connected to the upper inside of the outer cylinder. A sludge collection hopper is fixedly connected to the lower end of the outer cylinder, extending into the wastewater collection tank. A filter screen is fixedly connected to the lower inside of the wastewater collection tank. A control switch assembly is installed outside the settling tank, with its input terminal electrically connected to an external power source. This cyclone scraper dust collector for a coal conveying system effectively collects and filters fly ash in stages, achieving good dust removal results.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, specifically a cyclone scraper dust removal device for a coal conveying system. Background Technology

[0002] Coal is a very important chemical raw material that plays a vital role in many fields. However, the transportation of coal generates a large amount of fly ash particles, which causes pollution. If workers inhale these particles, they can have a negative impact on their health. Therefore, dust removal devices are usually used during coal transportation to achieve green coal production.

[0003] Current coal conveying dust removal devices use high-pressure water pumps to deliver water to atomizing nozzles, causing fly ash particles to combine with water and form sediment, thereby reducing fly ash pollution to the air.

[0004] While existing coal conveying dust removal devices can reduce fly ash particle pollution, they are difficult to effectively collect and filter fly ash, resulting in limited dust removal efficiency. Utility Model Content

[0005] The technical problem this invention aims to solve is to overcome existing defects and provide a cyclone scraper dust removal device for a coal conveying system. Through a dust removal mechanism, the cyclone blades cooperate with a demister to filter fly ash from the air, causing the fly ash to fall into a wastewater collection tank. Larger fly ash particles are filtered out, while smaller fly ash particles settle inside a sedimentation tank and are scraped off by a scraper. This allows for graded collection and filtration of fly ash, resulting in better dust removal and effectively solving the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cyclone scraper dust removal device for a coal conveying system, comprising a settling tank, an outer cylinder fixedly connected to the upper side of the settling tank, an inner cylinder fixedly connected to the inside of the outer cylinder, and a dust removal mechanism;

[0007] The dust removal mechanism includes a cyclone separator, a demister, a sludge collection hopper, a filter screen, and a wastewater collection tank. The wastewater collection tank is fixedly connected to the upper end of the sedimentation tank. The lower end of the outer cylinder is fixedly connected to the upper end of the wastewater collection tank. A cyclone separator is rotatably connected to the upper inside of the inner cylinder. A demister is fixedly connected to the upper inside of the outer cylinder. A sludge collection hopper is fixedly connected to the lower end of the outer cylinder. The lower end of the sludge collection hopper extends into the interior of the wastewater collection tank. A filter screen is fixedly connected to the lower inside of the wastewater collection tank.

[0008] The dust removal mechanism uses a combination of cyclone separators and demisters to filter fly ash from the air, causing it to fall into the wastewater collection tank. Larger fly ash particles are filtered out, while smaller particles settle inside the sedimentation tank and are scraped off by a scraper. This process achieves graded collection and filtration of fly ash, resulting in a good dust removal effect.

[0009] Furthermore, a control switch group is installed outside the sedimentation tank. The input terminal of the control switch group is electrically connected to an external power source, and the input terminal of the demister is electrically connected to the output terminal of the control switch group to control the operation of the electrical components.

[0010] Furthermore, a connecting pipe is fixedly connected to the lower surface of the sewage collection tank. Both the sewage collection tank and the sedimentation tank are filled with water, and the water level is higher than the lower end of the sewage collection hopper, allowing smaller fly ash particles to enter the sedimentation tank.

[0011] Furthermore, the dust removal mechanism also includes a scraper, which is fixedly connected to the lower inside of the settling tank. The input end of the scraper is electrically connected to the output end of the control switch group to scrape off fly ash particles in the settling tank.

[0012] Furthermore, a drain valve is fixedly connected to the right side of the sedimentation tank to discharge sewage from the sedimentation tank and the sewage collection tank.

[0013] Furthermore, an air inlet is fixedly connected to the left side of the outer surface of the outer cylinder, and an air outlet is fixedly connected to the upper end of the outer cylinder to guide the flow of gas containing fly ash.

[0014] Furthermore, a water pump is fixedly connected to the left side of the upper surface of the sewage collection tank. The outlet of the water pump is connected to the air inlet through a conveying pipe. An atomizing nozzle is fixedly connected at the connection between the conveying pipe and the air inlet. The input end of the water pump is electrically connected to the output end of the control switch group to form water mist that combines with fly ash particles, which facilitates subsequent dust removal.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The dust removal mechanism uses a combination of cyclone separators and demisters to filter fly ash from the air, causing it to fall into the wastewater collection tank. Larger fly ash particles are filtered out, while smaller particles settle inside the sedimentation tank and are scraped off by a scraper. This process achieves graded collection and filtration of fly ash, resulting in a good dust removal effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] In the diagram: 1 sedimentation tank, 2 outer cylinder, 3 inner cylinder, 4 air inlet, 5 dust removal mechanism, 51 cyclone vane, 52 demister, 53 sludge collection hopper, 54 filter screen, 55 sludge collection tank, 56 scraper, 6 air outlet, 7 connecting pipe, 8 drain valve, 9 water pump, 10 conveying pipe, 11 control switch group. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1 This embodiment provides a technical solution: a cyclone scraper dust removal device for a coal conveying system, including a sedimentation tank 1, an outer cylinder 2 fixedly connected to the upper side of the sedimentation tank 1, an air inlet 4 fixedly connected to the left side of the outer surface of the outer cylinder 2, the air inlet 4 being connected to an external dust extraction pipe and the end of the external dust extraction pipe away from the air inlet 4 being placed on the upper side of the external coal conveying equipment, an air outlet 6 fixedly connected to the upper end of the outer cylinder 2, an inner cylinder 3 fixedly connected to the inside of the outer cylinder 2, a drain valve 8 fixedly connected to the right side of the sedimentation tank 1, the drain valve 8 being opened periodically to discharge and replace the sewage inside the sedimentation tank 1 and the sewage collection tank 55, and a control switch group 11 being provided outside the sedimentation tank 1, the input end of the control switch group 11 being electrically connected to an external power supply.

[0021] It also includes a dust removal mechanism 5; the dust removal mechanism 5 includes a cyclone vane 51, a demister 52, a sludge collection hopper 53, a filter screen 54, and a wastewater collection tank 55. The wastewater collection tank 55 is fixedly connected to the upper end of the sedimentation tank 1. The lower end of the outer cylinder 2 is fixedly connected to the upper end of the wastewater collection tank 55. The cyclone vane 51 is rotatably connected to the upper inside of the inner cylinder 3. The demister 52 is fixedly connected to the upper inside of the outer cylinder 2. The input end of the demister 52 is electrically connected to the output end of the control switch group 11. The sludge collection hopper 53 is fixedly connected to the lower end of the outer cylinder 2. The lower end of the sludge collection hopper 53 extends into the interior of the wastewater collection tank 55. The filter screen 54 is fixedly connected to the lower inside of the wastewater collection tank 55. A connecting pipe 7 is fixedly connected to the lower surface of the wastewater collection tank 55. The interiors of both the wastewater collection tank 55 and the sedimentation tank 1 are filled with water, and the water level is higher than the lower end of the sludge collection hopper 53.

[0022] The dust removal mechanism 5 also includes a scraper 56, which is fixedly connected to the lower side of the interior of the sedimentation tank 1. The input end of the scraper 56 is electrically connected to the output end of the control switch group 11. A water pump 9 is fixedly connected to the left side of the upper surface of the wastewater collection tank 55. The outlet of the water pump 9 is connected to the air inlet 4 through the conveying pipe 10. An atomizing nozzle is fixedly connected at the connection between the conveying pipe 10 and the air inlet 4. The input end of the water pump 9 is electrically connected to the output end of the control switch group 11.

[0023] The working principle of this utility model is as follows:

[0024] When using the cyclone scraper dust collector of the coal conveying system for dust removal during coal transportation, connect the air inlet 4 to the external dust extraction pipe and place the end of the external dust extraction pipe away from the air inlet 4 on the upper side of the external coal conveying equipment.

[0025] Operate the control switch group 11 to start the water pump 9 and demister 52, connect the external water pipe to the water inlet of the water pump 9, and spray the water through the water pump 9 and the conveying pipe 10, after being atomized by the atomizing nozzle, into the air inlet 4. Connect the air outlet 6 to the external exhaust pipe, and the external exhaust pipe will extract the gas inside the inner cylinder 3, so that the inside of the inner cylinder 3 will generate negative pressure, thereby drawing the fly ash particles generated by the external coal conveying equipment when conveying coal into the interior of the outer cylinder 2 through the external dust extraction pipe and the air inlet 4, and forming humid gas in contact with the atomized water inside the air inlet 4.

[0026] The wet gas containing fly ash is pulled upward by negative pressure and passes through the swirl plate 51. The swirl plate 51 is composed of a blind plate and several windmill-shaped swirl blades. The windmill-shaped swirl blades are fixedly connected to the outer surface of the cylindrical blind plate. When the fly ash passes through the swirl plate 51, when the airflow containing fly ash enters the swirl device tangentially, a high-speed rotating flow field is formed under the guidance of the swirl plate 51. The fly ash particles are thrown towards the inner wall of the outer cylinder 2 under the action of centrifugal force. After the fly ash particles are separated from the gas, they settle down into the sludge collection hopper 53 along the inner wall of the outer cylinder 2. The purified gas moves upward and enters the interior of the demister 52. The demister 52 charges the droplets in the gas entering the demister 52 through a high-voltage electric field and then adsorbs them by the electrodes, thereby further purifying the fine particles and droplets inside the gas.

[0027] Fly ash falls into the wastewater collection tank 55 through the sludge collection hopper 53. Under the action of the filter screen 54, the larger fly ash particles are retained on the upper side of the filter screen 54. The operator can periodically use tools to remove these fly ash particles to prevent the filter screen 54 from clogging. The smaller fly ash particles flow into the interior of the sedimentation tank 1 through the connecting pipe 7.

[0028] Then, operate the control switch group to start the scraper 56. The scraper 56 runs and the scraper on the scraper 56 scrapes off the fly ash particles settled on the inner wall of the sedimentation tank 1. The drain valve 8 can be opened periodically to discharge and replace the sewage inside the sedimentation tank 1 and the sewage collection tank 55.

[0029] It is worth noting that the demister 52 disclosed in the above embodiments is LW5-19600, the water pump 9 is MD100P-4T3.0, and the control switch group 11 is provided with control buttons that correspond one-to-one with the demister 52 and the water pump 9 and are used to control their switching.

[0030] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A cyclone scraper dust collector for a coal conveying system, comprising a settling tank (1), wherein an outer cylinder (2) is provided on the upper side of the settling tank (1), and an inner cylinder (3) is fixedly connected inside the outer cylinder (2), characterized in that: It also includes a dust removal mechanism (5); The dust removal mechanism (5) includes a swirl vane (51), a demister (52), a sludge collection hopper (53), a filter screen (54), and a wastewater collection tank (55). The wastewater collection tank (55) is fixedly connected to the upper end of the sedimentation tank (1). The lower end of the outer cylinder (2) is fixedly connected to the upper end of the wastewater collection tank (55). The swirl vane (51) is rotatably connected to the upper inside of the inner cylinder (3). The demister (52) is fixedly connected to the upper inside of the outer cylinder (2). The sludge collection hopper (53) is fixedly connected to the lower end of the outer cylinder (2). The lower end of the sludge collection hopper (53) extends into the interior of the wastewater collection tank (55). The filter screen (54) is fixedly connected to the lower inside of the wastewater collection tank (55).

2. The cyclone scraper dust collector for a coal conveying system according to claim 1, characterized in that: The sedimentation tank (1) is equipped with a control switch group (11) on its exterior. The input end of the control switch group (11) is electrically connected to an external power source, and the input end of the demister (52) is electrically connected to the output end of the control switch group (11).

3. The cyclone scraper dust collector for a coal conveying system according to claim 1, characterized in that: The lower surface of the sewage collection tank (55) is fixedly connected to a connecting pipe (7). Both the sewage collection tank (55) and the sedimentation tank (1) are filled with water, and the water level is higher than the lower end of the sewage collection hopper (53).

4. The cyclone scraper dust collector for a coal conveying system according to claim 2, characterized in that: The dust removal mechanism (5) also includes a scraper (56), which is fixedly connected to the lower inside of the sedimentation tank (1). The input end of the scraper (56) is electrically connected to the output end of the control switch group (11).

5. A cyclone scraper dust collector for a coal conveying system according to claim 1, characterized in that: A drain valve (8) is fixedly connected to the right side of the sedimentation tank (1).

6. A cyclone scraper dust collector for a coal conveying system according to claim 2, characterized in that: An air inlet (4) is fixedly connected to the left side of the outer surface of the outer cylinder (2), and an air outlet (6) is fixedly connected to the upper end of the outer cylinder (2).

7. A cyclone scraper dust collector for a coal conveying system according to claim 6, characterized in that: A water pump (9) is fixedly connected to the left side of the upper surface of the sewage collection tank (55). The outlet of the water pump (9) is connected to the air inlet (4) through the conveying pipe (10). An atomizing nozzle is fixedly connected at the connection between the conveying pipe (10) and the air inlet (4). The input end of the water pump (9) is electrically connected to the output end of the control switch group (11).

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