CN221955200U - Belt sweeping device for belt line machine head - Google Patents

Abstract

The utility model discloses a belt blowing device of a belt line machine head, which comprises a storage bin, wherein the storage bin is provided with a belt line machine, the bottom of the belt line machine is provided with a blowing device, the storage bin is provided with a separation bin through a constant pressure pipeline, the separation bin is connected with the blowing device through a blowing pipeline, the discharging end of the separation bin is communicated with the top of the storage bin, two splayed-shaped distributed sintering filter screens are arranged in the separation bin, the separation bin is divided into three chambers by the sintering filter screens, the middle chamber is communicated with the output end of the constant pressure pipeline, the blowing pipeline is communicated with a back blowing pipeline, and the output end of the back blowing pipeline is respectively communicated with the chambers at two sides of the separation bin through two branch pipes. This belt line aircraft nose belt sweeps device prevents through the inside air current of negative pressure extraction feed bin that the inside air current of feed bin from leaking, contains aluminium oxide in the air current of negative pressure extraction, is filtering its aluminium oxide and retrieving, sends back the feed bin, realizes retrieving the purpose of leaking aluminium oxide.

Description

A device for blowing belt of belt line machine head

Technical Field

The utility model relates to the technical field of belt line head belt blowing for silo feeding.

Background Art

Silos are commonly used material storage equipment in various industries. Silo feed is transmitted by belt lines. In order to prevent the belt from bringing out alumina in the reverse direction, the original equipment will use air blowing to blow away the alumina brought out by the belt in the reverse direction. The air blowing causes the inside of the silo to be in positive pressure, and the air flow angle of the blowing increases the amount of alumina dust. As the air flow blows from the silo's port into the environment, an average of 30KG of recyclable alumina is wasted every day, and 10,950KG is wasted annually. This is not only dangerous, but also affects the health of operators.

Utility Model Content

The utility model aims to provide a device for blowing the belt of a belt line machine head, so as to solve the problems raised in the above-mentioned background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions:

A belt purging device for a belt conveyor head comprises a silo, which is equipped with a belt conveyor. A cleaning device is installed at the bottom of the belt conveyor. A separation silo is installed in the silo through a constant pressure pipeline. The separation silo is connected to the cleaning device through a cleaning pipeline, and the discharge end of the separation silo is connected to the top of the silo.

As a further solution of the utility model: two sintered filters distributed in an eight-shaped shape are arranged inside the separation chamber, and the sintered filters divide the separation chamber into three chambers, and the middle chamber is connected to the output end of the constant pressure pipeline.

As a further solution of the utility model: the cleaning pipeline is connected with a backflush pipeline, the output end of the backflush pipeline is connected with the chambers on both sides of the separation bin through two branch pipes, and backflush control valves are respectively installed on the two branch pipes.

As a further solution of the utility model: the input end of the cleaning and blowing pipeline is communicated with the chambers on both sides of the separation bin through two air inlet pipes, and air inlet control valves are respectively installed on the two air inlet pipes.

As a further solution of the utility model: an air inlet and exhaust pipeline is installed on the cleaning pipeline, and an air inlet and exhaust control valve is installed on the air inlet and exhaust pipeline.

As a further solution of the utility model: the cleaning and blowing device includes a silo door frame and a cleaning and blowing plate, the silo door frame is fixed on the silo door, the belt line machine enters from the silo door frame, the interior of the silo door frame is a cavity, the constant pressure pipeline is connected to the silo door frame, the cleaning and blowing plate is installed in the silo through a bracket and is located at the bottom of the belt line machine, the cleaning and blowing plate is provided with equidistantly distributed cleaning and blowing holes, and the cleaning and blowing plate is connected to the cleaning and blowing pipeline.

As a further solution of the utility model: a guide plate is installed on the bracket, the guide plate is in the shape of an arc that bends downward and is located on the side of the cleaning direction of the cleaning plate.

Compared with the prior art, the beneficial effects of the utility model are:

The belt blowing device at the head of the belt line extracts the airflow inside the silo through negative pressure to prevent the airflow inside the silo from leaking out. The airflow extracted by negative pressure contains alumina, which is filtered and recovered and sent back to the silo to achieve the purpose of recovering the leaked alumina.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a belt line head belt purging device;

FIG2 is a structural perspective view of a cleaning device in a belt line machine head belt cleaning device;

FIG3 is a front view of the structure of a cleaning device in a belt line machine head belt cleaning device;

FIG. 4 is a structural exploded view of a cleaning device in a belt line machine head belt cleaning device.

In the figure: 1. silo; 2. constant pressure pipeline; 3. separation silo; 4. air inlet pipe; 5. cleaning pipeline; 6. back-blowing pipeline; 7. belt line machine; 8. sintering filter; 9. cleaning device; 901. silo door frame; 902. cleaning plate; 903. guide plate; 904. bracket; 10. back-blowing control valve; 11. fan; 12. air pump; 13. air inlet and exhaust pipelines; 14. air inlet control valve; 15. branch pipe.

DETAILED DESCRIPTION

Please refer to Figures 1 to 4. In the embodiment of the utility model, a belt line machine head belt blowing device includes a silo 1, the silo 1 is equipped with a belt line machine 7, a blowing device 9 is installed at the bottom of the belt line machine 7, the silo 1 is installed with a separation silo 3 through a constant pressure pipeline 2, the separation silo 3 is connected to the blowing device 9 through a blowing pipeline 5, the discharge end of the separation silo 3 is connected to the top of the silo 1, and a fan 11 is installed on the constant pressure pipeline 2. The fan 11 sucks in the airflow from the outside and the inside of the silo 1 through negative pressure and sends it into the separation silo 3, the alumina is separated from the gas through filtration in the separation bin 3, and the gas is sent to the purge device 9 through the purge pipeline 5 for purge operation. The purge pipeline 5 is provided with an air pump 12 to form an air circulation system. The constant pressure pipeline 2 recovers the positive pressure airflow inside the silo 1, and filters and recovers the alumina therein to reduce the leakage of alumina. On average, 30 kg of alumina is wasted every day and 10,950 kg is recovered annually. Through on-site operation safety, it can also reduce the inhalation of operators.

In a preferred embodiment, two sintered filter screens 8 distributed in an eight-shaped shape are provided inside the separation bin 3. The sintered filter screens 8 divide the separation bin 3 into three chambers. The middle chamber is connected to the output end of the constant pressure pipeline 2. The two sintered filter screens 8 distributed in an eight-shaped shape can not only filter the alumina dust, but also can fall due to gravity and gather at the bottom of the separation bin 3 after the alumina accumulates. An auger can be used to control the material discharge between the separation bin 3 and the silo 1. Each time the auger discharges material, a part of it is controlled to be retained in the separation bin 3 to seal the airflow and prevent the gas from entering the silo 1 from the auger.

In a preferred embodiment, the purge pipeline 5 is connected to a backflush pipeline 6 , and the output end of the backflush pipeline 6 is connected to the chambers on both sides of the separation bin 3 through two branch pipes 15 , and the backflush control valves 10 are respectively installed on the two branch pipes 15 .

In a preferred embodiment, the input end of the cleaning pipeline 5 is connected to the chambers on both sides of the separation bin 3 through two air inlet pipes 4, and air inlet control valves 14 are respectively installed on the two air inlet pipes 4. In the filtering state, the airflow in the middle chamber of the separation bin 3 enters both sides and then is discharged. During backblowing, the backblowing control valve 10 is opened, and the air inlet control valve 14 corresponding to the chamber on the same side is closed. The branch pipe 15 sends airflow into the chamber on this side for backblowing, so that the alumina attached to the sintered filter 8 falls off, thereby achieving the backblowing effect.

In a preferred embodiment, an inlet and exhaust pipeline 13 is installed on the cleaning and blowing pipeline 5, and an inlet and exhaust control valve is installed on the inlet and exhaust pipeline 13. In order to maintain the air pressure during backblowing or cleaning operations, the air pump 12 requires different air flow rates, and the air pressure in the cleaning and blowing pipeline 5 may be excessive or insufficient. For this reason, the inlet and exhaust pipeline 13 is set, and the air pressure is adjusted and released through the cleaning and blowing pipeline 5 to meet the operation requirements.

In a preferred embodiment, the cleaning device 9 includes a bin door frame 901 and a cleaning plate 902. The bin door frame 901 is fixed on the bin door of the silo 1, and the belt conveyor 7 enters from the bin door frame 901. The interior of the bin door frame 901 is a cavity. The constant pressure pipeline 2 is connected to the bin door frame 901. The cleaning plate 902 is installed in the silo 1 through a bracket 904 and is located at the bottom of the belt conveyor 7. The cleaning plate 902 is provided with equidistantly distributed cleaning holes. The cleaning plate 902 is connected to the cleaning pipeline 5. The bin door frame 901 is the only way for alumina to enter and alumina dust to leak out. Therefore, a negative pressure siphon is used to attract the incoming airflow at the bin door frame 901, which can effectively prevent the leakage of alumina powder.

In a preferred embodiment, a guide plate 903 is installed on the bracket 904. The guide plate 903 is in the shape of a downward curved arc and is located on the blowing direction side of the blowing plate 902. The blowing plate 902 is too close to the end of the belt line machine 7. During the blowing process, the airflow passes through the falling alumina, causing the airflow to carry part of the alumina, increasing the generation of alumina powder. By setting the guide plate 903, the airflow direction is guided to reduce the generation of alumina powder.

It should be noted that the above embodiments all belong to the same utility model concept, and the description of each embodiment has its own focus. For matters that are not described in detail in some embodiments, reference can be made to the description in other embodiments.

The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims (7)

1. A belt-line machine head belt purging device, comprising a silo (1), the silo (1) being equipped with a belt-line machine (7), characterized in that a purge device (9) is installed at the bottom of the belt-line machine (7), a separation silo (3) is installed in the silo (1) via a constant pressure pipeline (2), the separation silo (3) is connected to the purge device (9) via a purge pipeline (5), and a discharge end of the separation silo (3) is connected to the top of the silo (1). 2. A belt line head belt purging device according to claim 1, characterized in that two sintered filter screens (8) distributed in an eight-shaped shape are arranged inside the separation chamber (3), and the sintered filter screens (8) divide the separation chamber (3) into three chambers, and the middle chamber is connected to the output end of the constant pressure pipeline (2). 3. A belt line head belt purging device according to claim 2, characterized in that the cleaning and blowing pipeline (5) is connected to a back-blowing pipeline (6), and the output end of the back-blowing pipeline (6) is connected to the chambers on both sides of the separation bin (3) through two branch pipes (15), and back-blowing control valves (10) are respectively installed on the two branch pipes (15). 4. A belt line machine head belt purging device according to claim 3, characterized in that the input end of the cleaning and blowing pipeline (5) is connected to the chambers on both sides of the separation bin (3) through two air inlet pipes (4), and air inlet control valves (14) are respectively installed on the two air inlet pipes (4). 5. A belt line machine head belt purging device according to claim 1, characterized in that an air inlet and exhaust pipeline (13) is installed on the purging pipeline (5), and an air inlet and exhaust control valve is installed on the air inlet and exhaust pipeline (13). 6. A belt-cleaning device for a belt conveyor head according to any one of claims 1 to 5, characterized in that the cleaning device (9) comprises a door frame (901) and a cleaning plate (902), the door frame (901) is fixed on the door of the silo (1), the belt conveyor (7) enters from the door frame (901), the interior of the door frame (901) is a cavity, the constant pressure pipeline (2) is connected to the door frame (901), the cleaning plate (902) is installed in the silo (1) through a bracket (904), and is located at the bottom of the belt conveyor (7), the cleaning plate (902) is provided with cleaning holes distributed at equal intervals, and the cleaning plate (902) is connected to the cleaning pipeline (5). 7. A belt line machine head belt purging device according to claim 6, characterized in that a guide plate (903) is installed on the bracket (904), and the guide plate (903) is in a downward curved arc shape and is located on the cleaning direction side of the cleaning plate (902).