Integral dust removal system for workshop

Abstract

The utility model discloses an integral dust removal system for a workshop, which relates to the technical field of dust removal and comprises a dust collection pipeline, a bag-type dust remover, an air compressor, an induced draft fan, a spray tower and an exhaust pipeline, the dust collection pipeline is connected into a plurality of stations, an air inlet of the bag-type dust remover is connected with the dust collection pipeline, and the air compressor is communicated with the bag-type dust remover through a pipeline. An air inlet of the induced draft fan is communicated with an air outlet of the bag-type dust collector through a pipeline, an air inlet of the spray tower is communicated with an outlet of the induced draft fan through a pipeline, and the exhaust pipeline is communicated with an air outlet in the top of the spray tower through a pipeline. According to the utility model, cloth bag dust removal and spray tower dust removal are carried out in sequence, high-efficiency dust removal and deep purification can be realized through graded purification, the ultra-low emission requirement is met, and gaseous pollutants are removed at the same time; the system stability is improved; and dust escape and secondary pollution are prevented. The included angle between the dust collection pipeline and the horizontal plane can prevent smoke dust from accumulating in the pipeline due to horizontal laying of the pipeline.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology, specifically a dust removal system for an entire workshop. Background Technology

[0002] Industrial silicon, also known as metallic silicon, is produced by drying and smelting silica sludge. Specifically, wet silica sludge is dried in a special oven and then transferred to a medium-frequency furnace for smelting and impurity removal. Silica sludge is a low-temperature antioxidant, typically soft, with a fine texture, light weight, high porosity, and strong water absorption. Dried silica exposed to air easily generates dust, while industrial silicon produced by medium-frequency furnace smelting is hard and brittle. Given the different characteristics of silicon materials at different stages of industrial silicon production, many problems remain to be solved in the drying, transfer, smelting, and crushing processes.

[0003] Dust may be generated during material drying, loading and unloading, and crushing. Dust exposed to the air not only harms the health of production personnel but may also affect equipment lifespan and product quality. Chinese patent publication number "CN213221515 U" discloses an integrated dust removal system for a powder coating preparation workshop, including a cyclone dust collector, a bag filter, an induced draft fan, and an exhaust pipe connected in sequence. An air compressor is connected to the bag filter via pipelines to supply compressed air. This patent uses a cyclone dust collector to remove coarse particles, which are then purified by the bag filter before being discharged into the atmosphere through the exhaust pipe, reducing dust pollution in the workshop. However, dust easily accumulates in the pipelines, causing blockages. Furthermore, it is not effective for dust removal under special production conditions (such as high temperature, high humidity, and flammable / explosive environments), such as high-temperature flue gas in drying rooms containing fine particles, which may also require desulfurization treatment. Utility Model Content

[0004] The purpose of this invention is to provide a comprehensive dust removal system for a workshop, in order to solve the problems of pipe blockage and poor dust removal effect mentioned above.

[0005] A comprehensive dust removal system for a workshop includes a dust collection duct, a bag filter, an air compressor, an induced draft fan, a spray tower, and an exhaust duct. The dust collection duct connects to multiple workstations. The air inlet of the bag filter is connected to the dust collection duct. The air compressor is connected to the bag filter via a pipeline. The air inlet of the induced draft fan is connected to the air outlet of the bag filter via a pipeline. The air inlet of the spray tower is connected to the air outlet of the induced draft fan via a pipeline. The exhaust duct is connected to the air outlet at the top of the spray tower via a pipeline.

[0006] Furthermore, the workstation is equipped with a dust collection hood, and the dust collection pipe is connected to the dust collection hood.

[0007] Furthermore, the dust collection duct is equipped with a flue valve at the work station connection point.

[0008] Furthermore, the end of the dust collection duct that connects to the bag filter is higher than the end of the dust collection duct that connects to multiple workstations, and the dust collection duct forms a 10° angle with the horizontal line.

[0009] Furthermore, a branch pipe is installed at one end of the dust collection pipe that connects to the bag filter, and the branch pipe is connected to the water inlet pipe, which is equipped with a water inlet valve.

[0010] Furthermore, the bottom of the bag filter is equipped with a dust collection device for recovering the dust inside the bag filter.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] In this invention, dust removal is achieved through a combination of baghouse dust collection and spray tower dust collection, resulting in efficient and deep dust removal. The baghouse dust collector is highly efficient at capturing fine particulate matter (such as PM2.5) and is suitable for handling fine, dry, non-fibrous dust, making it suitable for ultra-low emission scenarios. The spray tower uses liquid to contact the dust-laden gas, capturing dust particles with droplets, and then discharges clean gas through gas-liquid separation. While removing dust, it can also absorb acidic gases (such as SO2 and HCl), alkaline gases (such as NH3), or volatile organic compounds (VOCs), achieving a multi-functional integration of "dust removal + desulfurization / denitrification".

[0013] 1. In this utility model, the end of the dust collection pipe connected to the bag filter is higher than the end of the dust collection pipe connected to multiple workstations. After the machine stops, the dust collection pipe is flushed by water flow and the flushed dust-containing liquid is collected. After natural settling, the bottom sediment is taken for recycling and smelting. This not only reduces production costs but also improves production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram showing the direction of flue gas flow inside the dust collection pipe in this utility model;

[0016] Figure 3 This is a schematic diagram showing the direction of water flow inside the dust collection pipe in this utility model.

[0017] In the diagram: 1. Dust collection duct; 11. Flue valve; 12. Water inlet valve; 2. Bag filter; 21. Ash collection device; 3. Air compressor; 4. Exhaust fan; 5. Spray tower; 6. Exhaust duct. Detailed Implementation

[0018] 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.

[0019] A comprehensive dust removal system for a workshop includes a dust collection duct 1, a bag filter 2, an air compressor 3, an induced draft fan 4, a spray tower 5, and an exhaust duct 6. The dust collection duct 1 connects to multiple workstations. The inlet of the bag filter 2 is connected to the dust collection duct 1. The air compressor 3 is connected to the bag filter 2 via a pipeline. The inlet of the induced draft fan 4 is connected to the outlet of the bag filter 2 via a pipeline. The inlet of the spray tower 5 is connected to the outlet of the induced draft fan 4 via a pipeline. The exhaust duct 6 is connected to the top outlet of the spray tower 5 via a pipeline. By first using bag filters and then spray tower dust removal, this staged purification system achieves efficient dust removal and deep purification, meeting ultra-low emission requirements while simultaneously removing gaseous pollutants.

[0020] The workstation is equipped with a dust collection hood, and the dust collection pipe 1 is connected to the dust collection hood. The dust collection hood is installed at the non-enclosed workstation to restrict the flow of floating dust generated at the workstation into the dust collection pipe 1.

[0021] A flue valve 11 is installed at the workstation section of the dust collection duct 1. The opening and closing of the flue valve 11 restricts the flow direction of floating dust inside the dust collection duct 1.

[0022] The end of the dust collection duct 1 that connects to the bag filter 2 is higher than the end of the dust collection duct 1 that connects to multiple workstations, and the dust collection duct 1 forms a 10° angle with the horizontal line.

[0023] The dust collection duct 1 is connected to the bag filter at one end, and a branch duct is provided at the other end. The branch duct is connected to the water inlet duct, which is equipped with a water inlet valve 12. The angle of the dust collection duct 1 facilitates the flow of water from top to bottom to flush away the dust settled inside the duct when the machine is stopped for cleaning.

[0024] The bottom of the bag filter 2 is equipped with a dust collection device 21 for collecting the dust inside the bag filter 2.

[0025] The working principle of this utility model is as follows: all workstations in the workshop that may generate floating dust (such as drying rooms and loading / unloading stations) are connected to dust collection pipes. Some workstations are equipped with dust collection hoods (such as loading / unloading stations), while others are directly connected by dust collection pipes. The dust collection pipes are connected to the air inlet of the bag filter. The bag filter is equipped with filter bags to intercept dust-laden gas. The filtered gas passes through the inside of the filter bags and is introduced into the induced draft fan through the air outlet. The induced draft fan sends the gas filtered by the bag filter into the spray tower. After being sprayed by the spray tower, the gas is discharged through the exhaust pipe at the air outlet at the top of the spray tower.

[0026] The dust collection device at the bottom of the bag filter can collect the dust captured inside the bag filter. This dust is mostly composed of silica, which is a high-value dust that can be recycled and reused. The air compressor releases compressed air instantaneously through a pulse valve, forming a high-speed airflow that impacts the filter bags, shaking off the dust. The shaken-off dust falls into the dust collection device at the bottom of the bag filter for recycling and reuse.

[0027] The dust collection duct is connected to the bag filter at one end, which is higher than the end connected to each workstation. This facilitates the collection and cleaning of the dust that settles inside the duct. After a period of production, the machine should be shut down for maintenance. At this time, the flue valves at each workstation should be closed, the water inlet valves should be turned from closed to open, and water should be introduced into the dust collection duct. The water containing dust should be collected at the other end of the dust collection duct. After settling, the clear water at the top should be pumped away, and the sediment at the bottom should be taken for recycling. After dust collection is completed, the water inlet valve should be closed, the flue valves at each workstation should be opened, and the machine can be put into use again.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dust removal system for an entire workshop, comprising a dust collection duct (1), a bag filter (2), an air compressor (3), an induced draft fan (4), a spray tower (5), and an exhaust duct (6), characterized in that: The dust collection pipe (1) is connected to multiple workstations. The air inlet of the bag filter (2) is connected to the dust collection pipe (1). The air compressor (3) is connected to the bag filter (2) through a pipe. The air inlet of the induced draft fan (4) is connected to the air outlet of the bag filter (2) through a pipe. The air inlet of the spray tower (5) is connected to the outlet of the induced draft fan (4) through a pipe. The exhaust pipe (6) is connected to the air outlet at the top of the spray tower (5) through a pipe.

2. The overall dust removal system for a workshop according to claim 1, characterized in that: The workstation is equipped with a dust collection hood, and the dust collection pipe (1) is connected to the dust collection hood.

3. The overall dust removal system for a workshop according to claim 1, characterized in that: The dust collection pipe (1) is equipped with a flue valve (11) at the work station.

4. The overall dust removal system for a workshop according to claim 1, characterized in that: The dust collection pipe (1) is connected to the bag filter (2) at one end, which is higher than the end of the dust collection pipe (1) that is connected to multiple workstations, and the dust collection pipe (1) forms a 10° angle with the horizontal line.

5. The overall dust removal system for a workshop according to claim 1, characterized in that: The dust collection pipe (1) is connected to the bag filter and has a branch pipe at one end. The branch pipe is connected to the water inlet pipe and the water inlet pipe is equipped with a water inlet valve (12).

6. The overall dust removal system for a workshop according to claim 1, characterized in that: The bottom of the bag filter (2) is provided with a dust collection device (21) for collecting dust inside the bag filter (2).

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