CN205340386U - A bag - type dust collecting device for heavy metal mud innocent treatment - Google Patents

Abstract

The utility model discloses a bag-type dedusting device for harmless treatment of heavy metal sludge, relates to the technical field of heavy metal sludge treatment, and comprises a bag-type dedusting box and a gas flow meter. The bag-type dedusting box is arranged from top to bottom A clean gas chamber, a filter chamber and an ash collection chamber are arranged in sequence. Two through holes connecting the filter chamber are arranged at the bottom of the clean gas chamber. A clean gas outlet is arranged on the clean gas chamber. On the pipeline of the outlet; the filter chamber is provided with two sets of filter bags, each set of filter bags includes a first filter bag and a second filter bag set on the first filter bag, the first filter bag and the second filter bag The bag is respectively provided with a first filter hole and a second filter hole, the diameter of the first filter hole is smaller than that of the second filter hole; the ash collection chamber communicates with the filter chamber, and a rotary valve is arranged at the bottom of the ash collection chamber. The utility model increases the range of dust removal and improves the quality of dust removal.

Description

A bag-type dedusting device for harmless treatment of heavy metal sludge

technical field

The utility model relates to the technical field of heavy metal sludge treatment, in particular to a bag-type dedusting device for harmless treatment of heavy metal sludge.

Background technique

The traditional bag-type dust removal device is only used to filter finer dust particles. When encountering larger dust particles, it is easy to be blocked or cover the filter holes, thereby affecting the filtering effect. The dust removal range is small. When filtering, it is often necessary to cooperate with devices such as cyclone filters, which increases production costs. The traditional bag-type dedusting device is only provided with one dust-laden gas inlet, because the closer to the inlet, the greater the impact force between the gas and the filter bag, which is more conducive to filtering dust particles, so only one dust-laden gas inlet limits the filter bag. Full play of the filtering function.

Contents of the invention

In view of the deficiencies in the prior art, the purpose of this utility model is to provide a bag-type dedusting device for the harmless treatment of heavy metal sludge, which is beneficial to increase the dust-removing range and effect of the bag-type dedusting device.

In order to achieve the above object, the utility model adopts the following technical solutions:

A bag-type dedusting device for harmless treatment of heavy metal sludge, including a bag-type dedusting box and a gas flow meter. The bag-type dedusting box is provided with a clean air chamber, a filter chamber and an ash collection chamber in sequence from top to bottom:

The bottom of the clean gas chamber is provided with two through holes communicating with the filter chamber, the clean gas chamber is provided with a purified gas outlet, and the gas flow meter is arranged on the pipeline connected to the purified gas outlet;

The filter chamber is provided with two opposite dust-laden gas inlets. The filter chamber is provided with two sets of filter bags, and each set of filter bags includes a first filter bag with a bag opening diameter not smaller than the diameter of the through hole and A second filter bag sleeved on the first filter bag, the first filter bag and the second filter bag are respectively provided with a first filter hole and a second filter hole, the diameter of the first filter hole is smaller than the second filter hole The diameter of the first filter bag is arranged on the top of the filter chamber in a manner matched with the through hole, and the second filter bag is arranged on the top of the filter chamber in a detachable manner;

The ash collection chamber communicates with the filter chamber.

As an improvement of the utility model, the ash collecting chamber is bucket-shaped, and a rotary valve is arranged on the bottom end of the bucket-shaped ash collecting chamber.

The beneficial effects of the utility model are: double-layer filtration is beneficial to improve the filtering effect; the filter bag selected by the traditional bag-type dust removal device is selected as the first filter bag, and the filter bag with a filter aperture larger than the traditional filter bag is selected as the second filter bag. The second filter bag with larger filter pore size can filter coarser dust particles, thereby increasing the dust removal range; when the surface of the second filter bag slowly accumulates dust, its filtering effect is equivalent to that of the filter bag with smaller filter pore size. It can be used to filter dust with small particles; the second filter bag is set in a detachable way, and you can choose whether to remove the second filter bag according to the size of the particles in the dust removal gas, which is more flexible and convenient to use; the bucket-shaped collection The ash chamber collects dust particles at the bottom. When the dust gathers to a certain extent, the rotary valve on the bottom can be opened to remove dust, and the rotary valve can also be used to vacuum the inside of the bag house dust removal device; it is installed in the pipeline connected to the purified gas The gas flow meter on the top is used to observe the gas flow during the dust removal process. According to the gas flow, it is judged whether the filter bag is covered with dust and needs to be cleaned or replaced; the dusty gas enters the filter chamber from the same direction for a long time, which will not be conducive to the full operation of the filter bag. To play a role, the two opposite dust-containing gas inlets set on the filter chamber are convenient for inputting dust-containing gas from different directions. They can be input at the same time to increase the dust collision and further improve the dust removal quality. They can also be input successively to make full use of the different filter bags Parts are dusted.

Description of drawings

Fig. 1 is a structural schematic diagram of a bag-type dedusting device used for harmless treatment of heavy metal sludge according to the present invention.

Reference signs: 1. Clean gas chamber; 11. Purified gas outlet; 2. Filter chamber; 21. Dusty gas inlet; 3. Ash collection chamber; 31. Rotary valve; 4. First filter bag; 41. First Filter hole; 5, second filter bag; 51, second filter hole; 6, pipeline; 7, gas flow meter.

detailed description

Below, in conjunction with accompanying drawing and specific embodiment, the utility model is described further:

As shown in Figure 1, a bag-type dust removal device for the harmless treatment of heavy metal sludge includes a bag-type dust removal box and a gas flow meter 7, and the bag-type dust removal box is sequentially provided with a clean air chamber 1 from top to bottom , filter chamber 2 and ash collection chamber 3, the bottom of the clean air chamber 1 is provided with two through holes communicating with the filter chamber 2, the clean air chamber 1 is provided with a clean gas outlet 11, and the gas flow meter 7 is arranged on the On the pipeline 6 of the purified gas outlet 11; the filter chamber 2 is provided with two relative dust-laden gas inlets 21, and two groups of filter bags are also arranged in the filter chamber 2, and each filter bag group includes a bag whose diameter is not less than The first filter bag 4 with the through hole diameter and the second filter bag 5 sleeved on the first filter bag 4 are respectively provided with a first filter hole 41 and a second filter bag 5. Filter hole 51, the diameter of the first filter hole 41 is smaller than the diameter of the second filter hole 51, the first filter bag 4 is arranged on the top of the filter chamber 2 in a manner matched with the through hole, the second filter bag 5 It is detachably arranged on the top of the filter chamber 2; the bucket-shaped ash collection chamber 3 communicates with the filter chamber 2, and a rotary valve 31 is arranged on the bottom end of the bucket-shaped ash collection chamber 3.

When the utility model is used, the dust-containing gas can be input into the filter chamber 2 from two relative dust-containing gas inlets 21 at the same time, or can be input into the filter chamber 2 from the two dust-containing gas inlets 21 successively, and the gas passes through the second filter bag respectively. 5 and the first filter bag 4 filter the dust particles, the dust particles enter the dust collection chamber 3, the purified gas enters the clean gas chamber 1 through the through hole and is discharged through the purified gas outlet 11, and the gas flow meter 7 monitors the purified gas flow. When the dust piles up, the rotary valve 31 on the bottom of the ash chamber 3 can be opened for dust suction, and the second filter bag 5 can also be disassembled.

For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and ideas described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.

Claims (2)

1. the exhaust dust device with bag for heavy metal sewage sludge harmless treatment, it is characterised in that including bag-type dusting case and gas flowmeter, this bag-type dusting case is from top to bottom disposed with air-purifying chamber, filter chamber and dust collection chamber:

The bottom of this air-purifying chamber is provided with two through holes of connection filter chamber, and this air-purifying chamber is provided with purified gas outlet, and gas flowmeter is arranged on the pipeline connecting this purified gas outlet；

Filter chamber, this filter chamber is provided with two relative dusty gas entrances, two groups of filter bag groups it are provided with in this filter chamber, often group filter bag group all includes the first filter bag that bag mouth diameter is not less than through-hole diameter and the second filter bag being sheathed on the first filter bag, this first filter bag and the second filter bag are respectively arranged with the first filtering holes and the second filtering holes, the diameter of this first filtering holes is less than the diameter of the second filtering holes, this first filter bag is to be arranged on the top of filter chamber in the way of matching with through hole, this second filter bag is arranged on the top of filter chamber removably；

Dust collection chamber communicates with filter chamber.

2. the exhaust dust device with bag for heavy metal sewage sludge harmless treatment as claimed in claim 1, it is characterised in that dust collection chamber is bucket-shaped, should be provided with a rotary valve on bucket-shaped dust collection chamber bottom.