CN219483710U - Centralized dust removal and emission device and dust removal system - Google Patents

Abstract

The utility model provides a centralized dust removal and emission device and a dust removal system, wherein the centralized dust removal and emission device comprises a centralized dust remover, an exhaust chimney and a three-way regulating valve, wherein an inlet of the centralized dust remover is connected with a dust removal main pipe, three interfaces of the three-way regulating valve are respectively connected with an outlet of the centralized dust remover through a first air cleaning pipe, are connected with an inlet of the exhaust chimney through a second air cleaning pipe, and are connected with the dust removal main pipe through a circulating air pipe. The dust removing and discharging device provided by the utility model is provided with the circulating air pipe, and can be used for conveying the purified gas back to the main dust removing pipe for cleaning the fine dust and ash blocked in the main pipe, and the fine dust and ash can enter the centralized dust remover along with the air flow of the main dust removing pipe, so that the clean gas can be discharged from the exhaust chimney, and the recovery rate of the dust and the dust removing effect are improved.

Description

Centralized dust removal and emission device and dust removal system

Technical Field

The utility model relates to the technical field of dust removal equipment, in particular to a centralized dust removal and discharge device and a dust removal system.

Background

Dust removal systems are used in the industries of steel, chemical industry, electric power, food processing and the like. At present, a centralized dust fall mode of centralized power supply and unified dust removal treatment is basically adopted in each large-scale production line, and the dust removal system can perform centralized treatment on waste gas, is convenient for centralized control and ensures the dust removal effect.

The centralized dust removing system needs to collect a plurality of dust generating points of the whole workshop or the whole factory into one dust removing device for treatment, is favorable for unified treatment of dust and reduces secondary dust emission. But the dust needs to be conveyed through a main pipe, and the dust can be deposited in a pipeline after long-time operation, so that the dust is very difficult to clean, the dust cannot be recycled, the dust removal effect of a system is further affected, and waste gas is difficult to reach the emission standard.

Disclosure of Invention

The utility model aims to solve the technical problems of avoiding dust deposition in a pipeline and improving the dust recovery rate and the dust removal effect.

In order to solve the technical problems, the utility model provides a centralized dust removal and emission device which comprises a centralized dust remover, an exhaust chimney and a three-way regulating valve, wherein an inlet of the centralized dust remover is connected with a dust removal main pipe, three interfaces of the three-way regulating valve are respectively connected with an outlet of the centralized dust remover through a first air purifying pipe, are connected with an inlet of the exhaust chimney through a second air purifying pipe, and are connected with the dust removal main pipe through a circulating air pipe.

Compared with the prior art, the dust removal and emission device provided by the utility model has the advantages that the circulating air pipe can be used for conveying purified gas back to the main dust removal pipe for cleaning the fine dust and ash blocked in the main dust removal pipe, the dust enters the centralized dust remover along with the air flow of the main dust removal pipe, and clean gas can be emitted from the exhaust chimney, so that the recovery rate of the dust and the dust removal effect are improved.

Further, the centralized dust removal and emission device further comprises a booster fan, a first three-way cut-off valve and a second three-way cut-off valve are arranged on the circulating air pipe, an inlet of the booster fan is connected with the first three-way cut-off valve, and an outlet of the booster fan is connected with the second three-way cut-off valve. The arrangement of the booster fan can increase the air volume and the air pressure of the circulating air pipe, then adjust the air pressure and the air speed of the dust removing main pipe, and improve the dust cleaning and collecting effect.

Further, the booster fan is a variable frequency fan. The power of the booster fan is adjustable, and the air quantity and the air pressure can be adjusted according to the requirement.

Further, a first wind speed sensor and a first wind pressure sensor are arranged on the dust removal main pipe. The sensor is arranged to monitor the wind speed and the wind pressure in the main dust removal pipe, and the working state of the booster fan can be adjusted according to the running condition.

Further, a second wind speed sensor and a second wind pressure sensor are arranged on the circulating air pipe. The sensor is arranged to monitor the wind speed and wind pressure in the circulating air pipe, so that the requirements of dust cleaning and collecting of a dust removing main pipe are met.

Further, the centralized dust collector is a pulse dust collector, and a plurality of groups of filter media and pulse valves are arranged in the centralized dust collector. The pulse dust collector has high dust collection efficiency, and the circulating air pipe takes air from the rear of the centralized dust collector, so that the external air discharge quantity and dust can be greatly reduced.

Further, the lower part of the centralized dust collector is provided with an ash removal bucket. The pulse dust collector removes dust attached to a filter medium (a cloth bag or a filter cartridge) by blowing compressed air, and collects the dust through an ash removal hopper.

Further, the centralized dust removal and emission device further comprises a powder collection bin, and an ash conveying device is arranged between the ash removal hopper and the powder collection bin. The ash conveying device can convey the dust collected in the ash removal hopper to the powder collecting bin for uniform recovery treatment.

Further, the exhaust chimney is arranged on the powder collecting bin. The exhaust chimney is directly arranged and fixed on the powder collecting bin, so that the height of the exhaust chimney is correspondingly reduced, the wind resistance is reduced, and the floor investment of the elbow and the exhaust chimney is greatly reduced.

The utility model also provides a dust removal system which comprises the centralized dust removal and discharge device. This dust pelletizing system is through setting up the circulation tuber pipe, can effectively avoid the dust to deposit in the pipeline, improves dust recovery rate and dust removal effect, makes the system operation more stable.

Drawings

Fig. 1 is a process flow diagram of a centralized dust removal and emission device provided by an embodiment of the utility model.

Reference numerals illustrate:

the dust collector comprises a 2-centralized dust collector, a 21-dust removing hopper, a 3-exhaust chimney, a 4-booster fan, a 5-dust collecting bin, a 6-dust conveying device, a 71-dust removing main pipe, 73-a first air purifying pipe, 74-a second air purifying pipe, 75-a circulating air pipe, 81-a three-way regulating valve, 82-a first three-way cut-off valve, 83-a second three-way cut-off valve, 91-a first air speed sensor, 92-a first air pressure sensor, 93-a second air speed sensor and 94-a second air pressure sensor.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like numerals and letters indicate like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures; arrows in the figure indicate the flow direction of the fluid.

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Referring to fig. 1, an embodiment of the present utility model provides a dust removal system including a centralized dust removal and exhaust apparatus. The dust removal and emission device comprises a centralized dust collector 2, an exhaust chimney 3 and a three-way regulating valve 81, wherein the devices are connected through pipelines. Wherein the inlet of the centralized dust collector 2 is connected with a dust collecting main pipe 71; three interfaces of the three-way regulating valve 81 are respectively connected with an outlet of the centralized dust collector 2 through a first air purifying pipe 73, connected with an inlet of the exhaust chimney 3 through a second air purifying pipe 74 and connected with the dust removing main pipe 71 through a circulating air pipe 75. Clean gas treated by the centralized dust collector 2 can be directly conveyed to the exhaust chimney 3 for discharge, and can also be conveyed back to the main dust collector 71 for cleaning dust blocked in the main dust collector 71, and the dust enters the centralized dust collector 2 along with the air flow of the main dust collector 71, so that the recovery rate and the dust collection effect of the dust are improved. In the operation process of the dust removal system, the air return quantity can be controlled by changing the opening degree of the three-way regulating valve 81.

As shown in fig. 1, the distributed dust removal system further includes a booster fan 4, and the circulating air pipe 75 is provided with a first three-way cut-off valve 82 and a second three-way cut-off valve 83. The booster fan 4 adopts a bypass connection mode, and an inlet and an outlet of the booster fan are respectively connected with the first three-way cut-off valve 82 and the second three-way cut-off valve 83 through pipelines. The booster fan 4 is arranged to increase the air volume and the air pressure of the circulating air pipe 75, so that the air pressure and the air speed of the main dust removal pipe 71 are adjusted, and the dust cleaning and collecting effect is improved.

In a preferred embodiment, the dust removal main pipe 71 is provided with a first wind speed sensor 91 and a first wind pressure sensor 92, and the circulating air pipe 75 is provided with a second wind speed sensor 93 and a second wind pressure sensor 94. The sensor is arranged to monitor the wind speed and wind pressure in the pipeline and is used as the basis for adjusting the three-way regulating valve 81 and controlling the starting of the booster fan 4. The booster fan 4 is a variable frequency fan, the power of the fan is adjustable, and the air quantity and the air pressure of the circulating air pipe 75 can be conveniently increased according to the requirement.

As shown in fig. 1, the distributed dust removal system further comprises a dust collection bin 5, and the exhaust chimney 3 is arranged on the dust collection bin 5. Because the collecting and distributing dust removing system does not have a main exhaust fan, and the exhaust chimney 3 does not fall to the ground, gas is directly fed into the exhaust chimney 3 arranged and fixed on the powder collecting bin 5 after being discharged from the collecting dust collector 2. The dust bin and the exhaust chimney 3 are combined, so that the height of the exhaust chimney 3 is correspondingly reduced, the wind resistance is reduced, and the floor investment of the elbow and the exhaust chimney 3 is greatly reduced.

In this embodiment, the centralized dust collector 2 is a pulse dust collector, a plurality of groups of filter media and pulse valves are arranged in the centralized dust collector 2, and an ash removal hopper 21 is arranged at the lower part of the centralized dust collector 2. The pulse dust collector has high dust removing efficiency, removes dust attached to a filter medium (cloth bag or filter cartridge) by blowing compressed air, and collects the dust through a dust removing hopper 21. An ash conveying device 6 is arranged between the ash removing hopper 21 and the powder collecting bin 5, and the ash conveying device 6 can convey the dust collected in the ash removing hopper 21 to the powder collecting bin 5, so that unified recovery treatment is facilitated.

The centralized dust removal and emission device with the specific optimal design of the dust removal system can efficiently purify dust-containing gas, and can effectively prevent dust from being deposited in a pipeline by arranging the circulating air pipe 75, so that the dust recovery rate and the dust removal effect are improved, and the system operation is more stable.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solution of the present utility model, and not limiting thereof; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The utility model provides a concentrate dust removal discharging equipment, its characterized in that, including concentrating dust fall ware (2), exhaust stack (3) and tee bend governing valve (81), the import and the dust removal of concentrating dust fall ware (2) are responsible for (71) and are connected, tee bend governing valve (81) three interfaces respectively through first air-purifying pipe (73) with the exit linkage of concentrating dust fall ware (2), through second air-purifying pipe (74) with the entrance linkage of exhaust stack (3), through circulating tuber pipe (75) with dust removal is responsible for (71) and is connected.

2. The centralized dust removal and emission device according to claim 1, further comprising a booster fan (4), wherein a first three-way cut-off valve (82) and a second three-way cut-off valve (83) are arranged on the circulating air pipe (75), an inlet of the booster fan (4) is connected with the first three-way cut-off valve (82), and an outlet of the booster fan (4) is connected with the second three-way cut-off valve (83).

3. The concentrated dust removal and emission device according to claim 2, wherein the booster fan (4) is a variable frequency fan.

4. The centralized dust removal and emission device as claimed in claim 2, wherein the dust removal main pipe (71) is provided with a first wind speed sensor (91) and a first wind pressure sensor (92).

5. The concentrated dust removal and emission device according to claim 4, wherein a second wind speed sensor (93) and a second wind pressure sensor (94) are provided on the circulating air pipe (75).

6. The concentrated dust removal and emission device according to any one of claims 1 to 5, wherein the concentrated dust collector (2) is a pulse dust collector, and a plurality of groups of filter media and pulse valves are arranged in the concentrated dust collector (2).

7. The concentrated dust removal and emission device according to claim 6, wherein the lower part of the concentrated dust collector (2) is provided with an ash removal hopper (21).

8. The centralized dust removal and emission device as claimed in claim 7, further comprising a dust collection bin (5), wherein an ash conveying device (6) is arranged between the ash removal hopper (21) and the dust collection bin (5).

9. The concentrated dust removal and emission device according to claim 8, wherein the exhaust chimney (3) is arranged on the dust collection bin (5).

10. A dust removal system comprising a concentrated dust removal discharge apparatus as claimed in any one of claims 1 to 9.