CN210543845U

CN210543845U - Boiler flue gas dust removal device

Info

Publication number: CN210543845U
Application number: CN201920712961.3U
Authority: CN
Inventors: 肖传慰; 廖汉荣; 鲍衣福
Original assignee: Yangzhou Petrochemical Co ltd
Current assignee: Yangzhou Petrochemical Co ltd
Priority date: 2019-05-17
Filing date: 2019-05-17
Publication date: 2020-05-19
Anticipated expiration: 2029-05-17

Abstract

The utility model relates to the technical field of dust removal devices, in particular to a boiler flue gas dust removal device, which comprises a frame main body, a dust removal device main body and a blowing device, wherein the dust removal device main body is fixedly arranged in the frame main body, a plurality of groups of ash hoppers are fixedly arranged at the lower end of the dust removal device main body, rotary valves are arranged at the lower ends of the groups of ash hoppers, a tobacco inlet hopper is arranged at one side of the dust removal device main body, a cooling chamber is fixedly arranged at one side of the tobacco inlet hopper, which is far away from the dust removal device main body, a cooling layer is arranged in the cooling chamber, circulating pipelines are fixedly arranged at the upper end and the lower end of the cooling chamber, one end of the circulating pipeline, which is far away from the cooling chamber, a heat preservation layer is arranged in the dust removal device main body, an anode and a cathode are fixedly arranged, has certain popularization value.

Description

Boiler flue gas dust removal device

Technical Field

The utility model relates to a dust collector technical field specifically is a boiler flue gas dust collector.

Background

The boiler inevitably produces dust and flue gas in the in-process that uses, and the dust removal of boiler is exactly that the dust in the boiler is separated from the flue gas to reduce dust pollution and be favorable to further carrying out treatments such as desulfurization, denitration to the flue gas. With the development of society, environmental protection is more and more emphasized by people, and boiler dust removal is also applied to various fields such as thermal power generation and the like.

Boiler flue gas dust collector is when using, because the flue gas temperature is higher, need cool down the operation when getting into boiler flue gas dust collector, and traditional increase pipeline is great with increase spray column area, and it is inconvenient to use, and efficiency is lower, and boiler flue gas dust collector when operation in winter, and low temperature causes the filter bag top layer caking winter, influences the filter effect, consequently needs a boiler flue gas dust collector to make the improvement to above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boiler flue gas dust collector to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a boiler flue gas dust removal device comprises a frame main body, a dust removal device main body and a blowing device, wherein the dust removal device main body is fixedly installed in the frame main body, a plurality of groups of ash buckets are fixedly installed at the lower end of the dust removal device main body, rotary valves are arranged at the lower ends of the plurality of groups of ash buckets, a tobacco inlet pipe is arranged at one side of the dust removal device main body, a cooling chamber is fixedly installed at one side, away from the dust removal device main body, of the tobacco inlet pipe, a cooling layer is arranged in the cooling chamber, a circulating pipeline is fixedly installed at the upper end and the lower end of the cooling chamber, a cooling control chamber is fixedly installed at one end, away from the cooling chamber, of the circulating pipeline, a heat insulation layer is arranged in the dust removal device main body, an anode and a cathode are fixedly installed at one side, the improved dust removal device is characterized in that a gas purifying chamber is arranged at the upper end inside the dust removal device body, an exhaust chamber is fixedly mounted at the upper end of the gas purifying chamber, a poppet valve is fixedly mounted at the upper end of the exhaust chamber, two groups of filter bags are arranged at the upper end inside the dust removal device body, which is close to the gas purifying chamber, a blowing device is arranged at the lower end of the gas purifying chamber, which is close to the filter bags, the blowing device comprises a blowing port, a blowing pipe and a pulse valve, the upper end of the blowing port is fixedly mounted with.

Preferably, the cooling layer is internally provided with a cold smoke nozzle, the circulating pipeline is connected with the cooling layer and the cooling control room through connecting flanges, and smoke outlets are formed in the upper end of the cooling control room close to the exhaust chamber and the upper end of the air purifying chamber close to the exhaust chamber.

Preferably, the flow equalizing plate is of a hollow structure.

Preferably, the heat preservation specifically adopts the aluminum silicate plate material, just the heat preservation is the inside casing department ring of dust collector main part and establishes the distribution.

Preferably, the upper end of the filter bag is provided with an opening, and the filter bag is sleeved and connected with the air blowing port through the opening.

Preferably, the type of the pulse valve is DMF-Z-62S, the pulse valve is in threaded connection with an injection pipe, and the injection pipe and an air blowing port are designed in an integrated mode.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, circulating line through setting up, cooling control room and cooling layer ring are established at the high temperature pipeline outside, the other end then with circulating line, the cooling control room links to each other, the microthermal flue gas of some air discharge chambers is sneaked into through the mouth of walking of cooling control room, go in mixing the flue gas of high temperature to partly low temperature gas, can the mist like this, let the temperature of advancing in the pipe be unlikely to so high, the flue gas is after the cooling, get into inside the dust collecting equipment again, in the temperature that can bear the filter bag for a long time with the temperature drop, the inside component safety in utilization of dust collector main part has effectively been ensured, service life has been increased.

2. The utility model discloses in, through the heat preservation that sets up, the heat preservation adopts materials such as aluminum silicate plate, rock wool, and the heat preservation is the inside casing department ring of dust collector main part and establishes the distribution, and coefficient of heat conductivity such as aluminum silicate plate and rock wool is lower and the water absorption ratio is lower, avoids winter low temperature to cause and crosses filter bag top layer caking, influences the filter effect, has improved whole filtration efficiency.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is an internal structure view of the present invention;

fig. 3 is a structural diagram of the blowing device of the present invention.

In the figure: 1-a frame body, 2-an ash bucket, 3-a rotary valve, 4-a temperature reduction chamber, 5-a tobacco inlet pipe, 6-a circulating pipeline, 7-a temperature reduction control chamber, 8-a lift valve, 9-a dust removal device body, 10-a temperature reduction layer, 11-an anode, 12-a cathode, 13-a flow equalization plate, 14-an exhaust chamber, 15-an air purification chamber, 16-a blowing device, 17-a filter bag, 18-a heat insulation layer, 19-an air blowing port, 20-a blowing pipe and 21-a pulse valve.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

a boiler flue gas dust removal device comprises a frame main body 1, a dust removal device main body 9 and a blowing device 16, wherein the dust removal device main body 9 is fixedly installed inside the frame main body 1, a plurality of groups of ash hoppers 2 are fixedly installed at the lower end of the dust removal device main body 9, rotary valves 3 are respectively arranged at the lower ends of the ash hoppers 2, a tobacco inlet hopper 5 is arranged at one side of the dust removal device main body 9, a cooling chamber 4 is fixedly installed at one side of the tobacco inlet hopper 5 far away from the dust removal device main body 9, a cooling layer 10 is arranged inside the cooling chamber 4, circulating pipelines 6 are fixedly installed at the upper end and the lower end of the cooling chamber 4, a cooling control chamber 7 is fixedly installed at one end of the circulating pipeline 6 far away from the cooling chamber 4, a heat preservation layer 18 is arranged inside the dust removal device main body 9, the heat preservation layer 18 is made of aluminum silicate plates, the heat preservation layer 18 is distributed in a, a flow equalizing plate 13 is fixedly arranged in the dust removing device main body 9 close to the anode 11 and the cathode 12, the flow equalizing plate 13 adopts a hollow structure, the upper end in the dust removing device main body 9 is provided with an air purifying chamber 15, the upper end of the air purifying chamber 15 is fixedly provided with an exhaust chamber 14, the interior of the cooling layer 10 is provided with a cold smoke nozzle, the circulating pipeline 6, the cooling layer 10 and the cooling control chamber 7 are connected through a connecting flange, the upper end of the cooling control chamber 7 close to the exhaust chamber 14 and the upper end of the air purifying chamber 15 close to the exhaust chamber 14 are both provided with smoke outlets, the upper end of the exhaust chamber 14 is fixedly provided with a lift valve 8, the upper end in the dust removing device main body 9 close to the air purifying chamber 15 is provided with two groups of filter bags 17, the lower end of the air purifying chamber 15 close to the filter bags 17 is provided with a blowing device 16, the blowing device 16 comprises a blowing pipe 20 and a pulse, an injection pipe 20 is fixedly installed at the upper end of the air blowing port 19, a pulse valve 21 is fixedly installed on one side of the injection pipe 20, the model of the pulse valve 21 is DMF-Z-62S, the pulse valve 21 is in threaded connection with the injection pipe 20, and the injection pipe 20 and the air blowing port 19 are designed to be integrated.

The utility model discloses work flow: firstly, the flue gas enters a cooling chamber 4, the flue gas is annularly arranged outside a high-temperature pipeline through a circulating pipeline 6, a cooling control chamber 7 and a cooling layer 10, the other end of the flue gas is connected with the circulating pipeline 6 and the cooling control chamber 7, a part of low-temperature flue gas in an exhaust chamber 14 is mixed through a smoke outlet of the cooling control chamber 7, and a part of low-temperature flue gas is mixed into the high-temperature flue gas, so that the gas can be mixed, the temperature in a tobacco pipe 5 is not so high, the flue gas enters a dust removal device main body 9 after being cooled, the temperature is reduced to the temperature which can be borne by a filter bag 17 for a long time, the use safety of elements inside the dust removal device main body 9 is effectively ensured, the service life is prolonged, the heat preservation layer 18 is made of aluminum silicate plates, rock wool and the like through the arrangement, and the heat preservation layer 18 is annularly arranged at the position of a shell, the aluminum silicate plate, rock wool and the like have low heat conductivity coefficients and low water absorption rate, the phenomenon that the surface layer of the filter bag 17 is caked due to low temperature in winter is avoided, the filter effect is influenced, the overall filter efficiency is improved, the cooled flue gas is subjected to electric dust removal through the anode 11 and the cathode 12, then uniformly enters the filter bag 17 through the hollowed part of the flow equalizing plate 13 to perform bag type dust removal, is lifted to the exhaust chamber 14 through the lift valve 8 through the air purifying chamber 15 and then is discharged, the filter bag 17 is blown through the blowing device 16, and the attached smoke dust on the bag enters the ash hopper 2 and then is discharged through the rotary valve 3.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a boiler flue gas dust collector, includes frame main part (1), dust collector main part (9) and jetting device (16), its characterized in that: the dust removal device comprises a rack main body (1), a dust removal device main body (9) is fixedly installed in the rack main body (1), a plurality of groups of ash hoppers (2) are fixedly installed at the lower end of the dust removal device main body (9), rotary valves (3) are arranged at the lower ends of the plurality of groups of ash hoppers (2), a tobacco inlet pipe (5) is arranged at one side of the dust removal device main body (9), a cooling chamber (4) is fixedly installed at one side, away from the dust removal device main body (9), of the tobacco inlet pipe (5), a cooling layer (10) is arranged in the cooling chamber (4), a circulating pipeline (6) is fixedly installed at the upper end and the lower end of the cooling chamber (4), a cooling control chamber (7) is fixedly installed at one end, away from the cooling chamber (4), of the circulating pipeline (6), a heat preservation layer (18) is arranged in the dust removal device main body (9), and an anode (11, the dust collector is characterized in that a flow equalizing plate (13) is fixedly mounted at a position close to an anode (11) and a cathode (12) inside a dust collector body (9), a gas purifying chamber (15) is arranged at the upper end inside the dust collector body (9), an exhaust chamber (14) is fixedly mounted at the upper end of the gas purifying chamber (15), a poppet valve (8) is fixedly mounted at the upper end of the exhaust chamber (14), two sets of filter bags (17) are arranged at a position close to the gas purifying chamber (15) at the upper end inside the dust collector body (9), a blowing device (16) is arranged at a position close to the filter bags (17) at the lower end of the gas purifying chamber (15), the blowing device (16) comprises a blowing port (19), a blowing pipe (20) and a pulse valve (21), the blowing port (19) is fixedly mounted at the upper end of the blowing port.

2. The boiler flue gas dust removal device of claim 1, wherein: the cooling layer (10) is inside to be equipped with cold cigarette spout, just circulating line (6) and cooling layer (10), cooling control room (7) all connect through flange, cooling control room (7) upper end is close to exhaust chamber (14) department and air-purifying chamber (15) upper end and is close to exhaust chamber (14) department and has all seted up away the mouth of a cigarette.

3. The boiler flue gas dust removal device of claim 1, wherein: the flow equalizing plate (13) is of a hollow structure.

4. The boiler flue gas dust removal device of claim 1, wherein: the heat preservation layer (18) specifically adopts the aluminum silicate plate material, just the heat preservation layer (18) is that the inside casing department of dust collector main part (9) encircles and establishes the distribution.

5. The boiler flue gas dust removal device of claim 1, wherein: the upper end of the filter bag (17) is provided with an opening, and the filter bag (17) is sleeved and connected with the air blowing port (19) through the opening.

6. The boiler flue gas dust removal device of claim 1, wherein: the type of the pulse valve (21) is DMF-Z-62S, the pulse valve (21) is in threaded connection with the injection pipe (20), and the injection pipe (20) and the air blowing port (19) are designed in an integrated mode.