CN203728126U - Dedusting bucket elevator with self-cleaning device - Google Patents

Abstract

The utility model relates to the field of dust removal, in particular to a dust removal bucket elevator. A dust-removing bucket elevator with a self-cleaning device. The bottom of the dust-removing bucket elevator shell is provided with a number of purge nozzles. The purge nozzles are connected with the high-pressure gas circuit on site. As for the flow regulating valve, the bottom of the side wall of the casing is provided with an ash suction port, and the ash suction port is connected with a suction pipeline, and a cut-off valve is arranged on the suction pipeline. The utility model achieves the effect of emptying the accumulated dust. The airflow of the blowing pipe is ejected from the bottom of the ash hopper, which will not increase the rising resistance of the hoist, and will not generate dust inside the hoist. As the ash pumping port is close to the bottom of the hoist, the ash deposit will be sucked away when the cut-off valve is opened, and the function of the hoist will not be affected. The serrated panel can treat the agglomerated dust into a loose shape, improve the efficiency of blowing and suction, ensure the stable operation of environmental protection equipment, reduce maintenance costs, and save the production cost of the enterprise.

Description

Dust removal bucket elevator with self-cleaning device

technical field

The utility model relates to the field of dust removal, in particular to a dust removal bucket elevator.

Background technique

As shown in Figure 1, the body of the existing bucket elevator includes an ash hopper 1, an ash hopper chain 2, head/tail wheels 3, 3', a drive motor 4, a drive chain 5 and a housing 6, the ash hopper The chain 2 is wound on the head and tail wheels 3 to form a cycle, the ash hopper 1 is set on the ash hopper chain 2, the drive motor 4 drives the head and tail wheels to rotate through the drive chain 5, and the head and tail wheels 3 drive the ash hopper chain 2 to drive the ash hopper. Bucket 1 moves to send ash. The ash from the scraper conveyor enters the continuously running ash hopper 1 through the ash outlet 7, and enters the dust removal ash bin through the inclined pipe 8 at the top of the bucket elevator. In the normal state of dust removal, the amount of ash processed in the warehouse is relatively constant, and the bucket elevator can transport all the dust to the dust bin. Since the ash is a fine powder, part of the powder will fall on the ground during the natural falling process. The bottom of the bucket elevator; once the dust removal is abnormal, the amount of ash in a certain period of time will increase, exceeding the processing capacity of the bucket elevator, and the bottom of the bucket elevator will accumulate a lot of dust. The newly built dust removal has few such phenomena, and the dust removal with a long running time, due to the deterioration of the equipment state and the failure to keep up with the operation and maintenance, a large amount of falling ash accumulates at the bottom of the bucket elevator, and the ash bucket cannot take the ash at the bottom away. In this way, the ash at the bottom will accumulate more and more. After the ash is squeezed and hardened, the tail wheel 3' will be raised and deflected after being accumulated and squeezed by the ash, so that the ash bucket deviates from the normal running track and rubs and deforms. Faults such as derailment will occur if the tail wheel and the rail chain are not meshed well, which will affect the environment while generating maintenance costs.

Contents of the invention

The technical problem to be solved by the utility model is to provide a dust-removing bucket elevator with a self-cleaning device. The bucket elevator is equipped with a blowing pipe at the bottom of the bucket elevator and sucks the dust away with negative pressure to achieve The effect of emptying the accumulated dust ensures the stable operation of environmental protection equipment, reduces maintenance costs, and saves the production cost of the enterprise.

The utility model is achieved in the following way: a dust removal bucket elevator with a self-cleaning device, the bottom of the dust removal bucket elevator shell is provided with a number of blowing nozzles, and the blowing nozzles are connected with the high-pressure gas path on site A flow regulating valve is set on the high-pressure gas line, and the bottom of the side wall of the casing is provided with an ash pumping port, and the ash pumping port is connected with the suction pipeline, and a shut-off valve is set on the suction pipeline.

A dust collection hood is arranged between the ash suction port and the suction pipeline.

The ash hoppers of the dust-removing bucket elevator are four adjacent to each other in a group, and the ports of the two ash hoppers in a group are respectively provided with a saw-toothed panel, and the saw teeth of the two saw-toothed panels are arranged alternately.

One end of the suction pipeline is connected to the ash suction port, and the other end of the suction pipeline is connected to the air inlet pipe of the dust removal system.

The suction pipeline communicates with the top of the air inlet pipe.

There are two groups of purging nozzles, and the two groups of purging nozzles are symmetrically arranged on the bottom of the casing.

The dust-removing bucket elevator with self-cleaning device of the utility model achieves the effect of emptying the accumulated dust by setting a spray pipe at the bottom of the bucket elevator and sucking the dust away with negative pressure. The airflow of the blowing pipe is ejected from the bottom of the ash hopper, which will not increase the rising resistance of the hoist, and will not generate dust inside the hoist. As the ash pumping port is close to the bottom of the hoist, the ash deposit will be sucked away when the cut-off valve is opened, and the function of the hoist will not be affected. The serrated panel can treat the agglomerated dust into a loose shape, improve the efficiency of "blowing and suction", ensure the stable operation of environmental protection equipment, reduce maintenance costs, and save the production cost of the enterprise.

Description of drawings

Fig. 1 is a kind of structural schematic diagram of existing dedusting bucket elevator;

Fig. 2 is a structural schematic diagram of the dust removal bucket elevator of the present invention;

Figure 3 is a schematic side view of an ash hopper fitted with serrated panels.

In the figure: 1 ash hopper, 2 ash hopper chain, 3 head wheel, 3′ tail wheel, 4 drive motor, 5 drive chain, 6 shell, 7 ash drop port, 8 inclined pipe, 9 purge nozzle, 10 flow adjustment Valve, 11 ash suction port, 12 suction pipeline, 13 cut-off valve, 14 dust collection cover, 15 air inlet pipe, 16 serrated panel.

Detailed ways

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content of the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

Example 1

A dust-removing bucket elevator with a self-cleaning device. The bottom of the dust-removing bucket elevator housing 6 is provided with a number of purge nozzles 9, and the purge nozzles 9 are connected with the high-pressure gas circuit on site. A flow regulating valve 10 is set on the road, and the bottom of the side wall of the housing 6 is provided with an ash pumping port 11, and the ash pumping port 11 is connected with a suction pipeline 12, and a shut-off valve is arranged on the suction pipeline 12 13. In this embodiment, as shown in Figure 2, the body of the dust-removing bucket elevator includes an ash hopper 1, an ash hopper chain 2, a head wheel 3, a tail wheel 3', a drive motor 4, a drive chain 5 and a casing 6 , the ash hopper chain 2 is wound on the head wheel 3 and the tail wheel 3' to form a cycle, the ash hopper 1 is arranged on the ash hopper chain 2, the drive motor 4 drives the head and tail wheels to rotate through the drive chain 5, and the head and tail Wheel 3 drives ash hopper 1 to move through ash hopper chain 2 to send ash. The ash from the scraper conveyor enters the continuously running ash hopper 1 through the ash outlet 7, and enters the dust removal ash bin through the inclined pipe 8 on the top of the bucket elevator; however, the utility model can also be applied Compared with other types of dust-removing bucket elevators; the flow rate of the blowing nozzle 9 is controlled by a flow regulating valve 10. When the dust cleaning operation at the bottom of the dust-removing bucket elevator stops, the flow regulating valve 10 is closed, and the shut-off valve 13 off at the same time.

In the utility model, in order to ensure the suction efficiency and improve the suction capacity, a dust collection cover 14 is arranged between the ash suction port 11 and the suction pipeline 12, and the dust collection cover 14 is usually a tapered Semi-arc shell.

In addition, because the ash that sinks to the bottom will form hard lumps after being squeezed, the common ash hopper 1 sometimes cannot smoothly shovel these hard lumps, so in this embodiment, the ash hopper of the dust removal bucket elevator described 1. Four adjacent ones form a group. The ports of the two ash hoppers 1 in one group are respectively provided with a sawtooth panel 16. The sawtooth of the two sawtooth panels 16 are interlaced, and the sawtooth shovel is used to increase the ash Bucket 1 is capable of crushing hard blocks.

In order to facilitate on-site equipment layout and make full use of on-site conditions, no pump is installed independently in the suction pipeline 12 to generate negative pressure. In this embodiment, one end of the suction pipeline 12 is connected to the ash pumping port 11, the other end of the suction pipeline 12 is connected to the air inlet pipe 15 of the dust removal system. Blockage will affect the ventilation performance of the air inlet pipe 15 . In this embodiment, the interface between the suction pipeline 12 and the air inlet pipe 15 is located at the top of the air inlet pipe 15 .

There are two groups of purge nozzles 9 in this embodiment, and the two groups of purge nozzles 9 are symmetrically arranged on the bottom of the casing 6 .

Claims (6)

1. A dust-removing bucket elevator with a self-cleaning device is characterized in that: the bottom of the dust-removing bucket elevator shell (6) is provided with some purge nozzles (9), and the purge nozzles (9) ) is connected with the high-pressure gas circuit on site, and the high-pressure gas circuit is provided with a flow regulating valve (10), and the bottom of the side wall of the casing (6) is provided with an ash extraction port (11), and the ash extraction port (11) is connected to the The suction pipeline (12) is connected, and the suction pipeline (12) is provided with a shut-off valve (13). 2. The dust-removing bucket elevator with self-cleaning device according to claim 1, characterized in that: a dust collection cover (14) is arranged between the ash suction port (11) and the suction pipeline (12) ). 3. The dust-removing bucket elevator with self-cleaning device as claimed in claim 1 or 2, is characterized in that: the ash buckets (1) of the described dust-removing bucket elevator are adjacent to each other in groups of four, and one group A sawtooth panel (16) is respectively arranged on the ports of the two ash hoppers (1), and the sawtooth of the two sawtooth panels (16) are arranged staggeredly. 4. The dust-removing bucket elevator with self-cleaning device as claimed in claim 3, characterized in that: one end of the suction pipeline (12) is connected to the ash suction port (11), and the suction pipeline ( 12) The other end is communicated with the air inlet pipe (15) of dust removal system. 5. The dust removal bucket elevator with self-cleaning device according to claim 4, characterized in that: the suction pipeline (12) is connected to the top of the air inlet pipe (15). 6. The dust-removing bucket elevator with self-cleaning device as claimed in claim 3, characterized in that: said blowing nozzles (9) have two groups, and the two groups of cleaning nozzles (9) are arranged symmetrically in the center at the bottom of the housing (6).