CN209076340U - A kind of wet type three-stage dust catcher - Google Patents

Abstract

A wet three-stage dust collector comprises a water tank, a primary dust removal device, a secondary dust removal device and a tertiary dust removal device; the primary dust removal device is arranged at one end of the water tank, and the tertiary dust removal device is arranged at the other end of the water tank; the secondary dust removal device The device is arranged between the first-level dust removal device and the third-level dust removal device; the gas to be dedusted is discharged into the atmosphere through the first-level dust removal device, the second-level dust removal device and the third-level dust removal device in sequence; The combination of spray dust collector and filter dust removal can not only improve the dust removal efficiency of the existing water bath dust collector for small particle size dust, but also inherit the dust removal advantages of cyclone dust collector, water bath dust collector, spray dust collector and filter screen dust removal. , thereby improving the dust removal efficiency of the dust collector.

Description

A wet three-stage dust collector

technical field

The utility model belongs to the technical field of dust removal, in particular to a wet three-stage dust collector.

Background technique

At present, the existing dust collectors on the market are divided into dry dust collectors and wet dust collectors, among which the more typical wet dust collectors include impulse dust collectors, water bath dust collectors, hollow spray dust collectors, and leaky tray tower dust collectors. However, the dust removal efficiency of a single wet dust collector is not high. Due to the difference in structure and function of each type of wet dust collector, if several types of wet dust collectors are simply combined, not only the overall structure of the dust collector is too large, which is not conducive to large-scale production, but also the difficulty of operation is increased. For example, the water bath dust collector is not very efficient for the treatment of small particle size dust due to the fast air flow rate and the large bubbles generated, while the spray dust collector is better for the treatment of smaller dust, but, At present, there is no related composite wet dust collector on the market. Moreover, the cyclone dust removal technology has good environmental adaptability, and has obvious effect on large particle dust removal, and at the same time has little impact on subsequent dust removal equipment. In many industrial dust removal equipment, it is often used as the first-level dust removal method.

Utility model content

The purpose of this utility model is to provide a wet three-stage dust collector to solve the above problems.

To achieve the above object, the utility model adopts the following technical solutions:

A wet three-stage dust collector comprises a water tank, a primary dust removal device, a secondary dust removal device and a tertiary dust removal device; the primary dust removal device is arranged at one end of the water tank, and the tertiary dust removal device is arranged at the other end of the water tank; the secondary dust removal device The device is arranged between the first-level dust removal device and the third-level dust removal device; the gas to be dedusted is discharged into the atmosphere through the first-level dust removal device, the second-level dust removal device and the third-level dust removal device in sequence;

Further, the first-level dust removal device includes a cyclone dust collector, a first fan, a water spray pipe and an air inlet; the air inlet is arranged on the cyclone dust collector, the water spray pipe is arranged in the air inlet, and the first fan is arranged on the cyclone dust collector. The top of the cyclone is connected to the inside of the cyclone.

Further, a vertical partition is arranged in the water tank to separate the water tank into a first water tank and a second water tank, a communication hole is arranged at the bottom of the partition, and the cyclone dust collector is located in the first water tank; The device, the secondary dust removal device and the tertiary dust removal device are all higher than the horizontal surface; the secondary dust removal device includes a ventilation pipe and an atomizing nozzle; one end of the ventilation pipe is connected to the first fan, and the other end extends into the second water tank; An atomizing nozzle is arranged on the inner wall of the water tank at the outlet.

Further, the three-stage dust removal device includes a second fan, an air outlet chamber, a water inlet and a filter device; the air outlet chamber is arranged on the second water tank and communicates with the second water tank; a number of filter devices are arranged in the second water tank below the air outlet chamber A pipeline is arranged above the air outlet cavity, the pipeline is connected with the second fan, and a water inlet is also arranged on the air outlet cavity, and the water inlet is connected with the filtering device.

Further, the filtering device includes a nozzle bracket, a nozzle, a filter screen and a water leakage pipe; a number of nozzle brackets are vertically arranged on the upper wall of the second water tank, a number of nozzles are arranged on the nozzle bracket, and the outer side of the nozzle bracket is covered with There are several layers of filter screens, and the lower end of the filter device is provided with a water leakage pipe; the water inlet is connected to the nozzle through the pipe; the second fan is provided with an exhaust port.

Further, a sewage processor is connected to the bottom of the water tank through a pipeline.

Compared with the prior art, the utility model has the following technical effects:

The utility model combines the cyclone dust collector, the water bath dust collector, the spray dust collector and the filter screen dust collector, which can not only improve the dust removal efficiency of the existing water bath dust collector for small particle size dust, but also inherits the cyclone dust collector and the water bath dust collector. , spray dust collector and filter screen dust removal advantages, thereby improving the dust removal efficiency of the dust collector.

At the same time, the water bath spray filter mesh composite wet dust collector also conducts sewage treatment to realize the recycling of water resources.

Description of drawings

Fig. 1 is the structural schematic diagram of the utility model patent.

The meaning of each label in the figure is 1-first fan, 2-air inlet, 3-cyclone dust collector, 4-partition, 6-ventilation pipe, 7-atomizing nozzle, 8-second fan, 9-inlet Water outlet, 10-air outlet, 11-nozzle bracket, 12-nozzle, 13-filter, 14-leak pipe, 15-drain pipe, 16-sewage treatment device, 17-first water tank, 18-second water tank, 19-exhaust port, 20-spray pipe.

Detailed ways

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

A wet three-stage dust collector comprises a water tank, a primary dust removal device, a secondary dust removal device and a tertiary dust removal device; the primary dust removal device is arranged at one end of the water tank, and the tertiary dust removal device is arranged at the other end of the water tank; the secondary dust removal device The device is arranged between the first-level dust removal device and the third-level dust removal device; the gas to be dedusted is discharged into the atmosphere through the first-level dust removal device, the second-level dust removal device and the third-level dust removal device in sequence;

The first-level dust removal device includes a cyclone dust collector 3, a first fan 1, a water spray pipe 20 and an air inlet 2; A fan is arranged at the top of the cyclone dust collector 3 and communicates with the inside of the cyclone dust collector 3 .

A vertical partition 4 is arranged in the water tank to separate the water tank into a first water tank 17 and a second water tank 18, a communication hole is arranged at the bottom of the partition 4, and the cyclone 3 is located in the first water tank 17; the water tank is provided with water, The primary dust removal device, secondary dust removal device and tertiary dust removal device are all higher than the horizontal plane; the secondary dust removal device includes a ventilation pipe 6 and an atomizing nozzle 7; one end of the ventilation pipe 6 is connected to the first fan 1, and the other end extends into the second Water tank 18; Atomizing nozzle 7 is provided on the inner wall of the water tank at the outlet of the ventilation pipe 6 in the water tank.

The three-stage dust removal device includes a second fan 8, an air outlet chamber 10, a water inlet 9 and a filter device; the air outlet chamber 10 is arranged on the second water tank 18 and communicates with the second water tank 18; the air outlet chamber 10 is in the second water tank 18 below Several filtering devices are provided; pipes are arranged above the air outlet cavity 10, and the pipes are connected to the second fan 8, and the air outlet chamber 10 is also provided with a water inlet 9, which is connected to the filtering device.

The filtering device includes a nozzle bracket 11, a nozzle 12, a filter screen 13 and a water leakage pipe 14; a plurality of nozzle brackets 11 are vertically arranged on the inner upper wall of the second water tank 18, and a number of nozzle brackets 12 are arranged on the nozzle bracket 11. The nozzle bracket The outer side of the 11 is covered with several layers of filter screens 13, and the lower end of the filter device is provided with a water leakage pipe 14; the water inlet 9 is connected to the nozzle 12 through a pipe; The filter device is composed of a filter screen bracket, a filter screen and a leakage pipe; the backwash system includes a square steel nozzle bracket and a 120-degree wide-angle nozzle. The filter screen is made of 3 layers of 316L stainless steel mesh superimposed, and the thinnest mesh is 300 mesh, which is the main body of the filter. The other two layers are all 12×64 grids, which strengthen the protection of the 300-mesh filter. The inside of the filter cartridge is designed with a nozzle, which regularly recoils the filter screen to prevent the filter screen from being blocked. The water level control pipe can make the sewage in the water tank flow into the sewage treatment system by using the principle of the communicating device.

A sewage processor 16 is connected to the bottom of the water tank through pipes.

The working process of the utility model:

Under the action of the negative pressure of the first fan 1, the exhaust gas enters the cyclone dust collector 3 through the air inlet 2 for primary dust removal. In particular, a water spray pipe is arranged at the spiral inlet position (the water sprayed is the water purified by the sewage treatment plant), which not only sprays the dust-containing gas, improves the dust removal effect, but also washes the spiral wall. The dust-laden gas enters the box (left) 17 at the bottom of the spiral under the combined action of centrifugal force and gravity. The water tank is divided into a first water tank 17 and a second water tank 18 by the partition plate 4 , and the first water tank 17 and the second water tank 18 are communicated with each other.

The dust-laden gas after the primary purification passes through the cyclone 3 and then enters the second water tank 18 through the pipeline 6 for the second dust removal. In particular, an atomizing nozzle 7 is installed at the end of the ventilation pipeline 6 to atomize the gas. Under the action of water droplets, the dust with smaller particle size begins to grow and aggregate, so that the individual smaller particles are transformed into particle clusters with relatively large volumes. Reach the filter screen 13 to provide wet dust removal conditions for the filter screen 13 to remove dust.

The gas after being sprayed and dedusted by the second-stage water bath will reach the filter screen 13 under the action of the negative pressure of the second fan 8 to carry out the third-stage dedusting. After the three-stage dust removal, the dust-containing gas has been purified into clean gas, and is finally discharged into the atmosphere through the exhaust port 19 at the position of the second fan 8 through the air outlet cavity 10 .

On the one hand, in order to purify the water consumed in the operation of the dust removal equipment and avoid water pollution, on the other hand, in order to promote the recycling of water resources and save water, a sewage processor 16 is also developed in the design scheme. The sewage entering the sewage processor 16 consists of two parts. On the one hand, the water injected by the water spray pipe 20 and the atomizing nozzle 7 raises the liquid level in the tank, and when it exceeds the liquid level control line, it flows into the sewage treatment plant through the pipeline of the limit pipe 15 .

Claims (6)

1. a kind of wet type three-stage dust catcher, which is characterized in that including water tank, primary dust removing device, two-stage dust removal device and three-level Dust-extraction unit；One end of water tank is arranged in primary dust removing device, and the other end of water tank is arranged in 3-stage dust-removal device；Two-stage dust removal Device is arranged between primary dust removing device and 3-stage dust-removal device；Successively pass through primary dust removing device, second level to dedusting gas Dust-extraction unit and 3-stage dust-removal device are discharged into atmosphere.

2. a kind of wet type three-stage dust catcher according to claim 1, which is characterized in that primary dust removing device includes that whirlwind removes Dirt device (3), the first blower (1), sparge pipe (20) and air inlet (2)；Air inlet (2) is arranged on cyclone dust collectors (3), water spray (20) setting is managed in air inlet (2), the first blower is arranged on the top of cyclone dust collectors (3), and interior with cyclone dust collectors (3) Portion's connection.

3. a kind of wet type three-stage dust catcher according to claim 2, which is characterized in that be provided with vertical partition in water tank (4) water tank is divided into the first water tank (17) and the second water tank (18), partition (4) bottom is provided with intercommunicating pore, cyclone dust collectors (3) it is located in the first water tank (17)；Water, primary dust removing device, two-stage dust removal device and 3-stage dust-removal device are provided in water tank It is above horizontal plane；Two-stage dust removal device includes ventilation pipe (6) and atomizer (7)；One end connection the of ventilation pipe (6) One blower (1), the other end protrude into the second water tank (18)；It is provided on the tank inner wall in the exit in ventilation pipe (6) water tank Atomizer (7).

4. a kind of wet type three-stage dust catcher according to claim 3, which is characterized in that 3-stage dust-removal device includes the second wind Machine (8), outlet chamber (10), water inlet (9) and filter device；Outlet chamber (10) is arranged on the second water tank (18), and with second Water tank (18) connection；Several filter devices are provided in the second water tank (18) below outlet chamber (10)；Outlet chamber (10) it is upper Side is provided with pipeline, and pipeline connects the second blower (8), is additionally provided with water inlet (9) on outlet chamber (10), and water inlet and filtering fill Set connection.

5. a kind of wet type three-stage dust catcher according to claim 4, which is characterized in that filter device includes lance holder (11), spray head (12), strainer (13) and leak pipe (14)；Several lance holders are vertically installed on second water tank (18) interior upper wall (11), it is provided with several spray heads (12) on lance holder (11), several layers strainer (13) is coated on the outside of lance holder (11), The lower end of filter device is provided with leak pipe (14)；Water inlet (9) connects spray head (12) by pipeline；Second blower is set on (8) It is equipped with exhaust outlet (19).

6. a kind of wet type three-stage dust catcher according to claim 1, which is characterized in that water tank bottom is connected with by pipeline Apparatus for treating sewage (16).