CN211625308U

CN211625308U - Boiler waste gas treatment device

Info

Publication number: CN211625308U
Application number: CN202020119151.XU
Authority: CN
Inventors: 宋党伟
Original assignee: Liaoning Petrochemical Vocational and Technical College
Current assignee: Liaoning Petrochemical Vocational and Technical College
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-10-02
Anticipated expiration: 2030-01-19

Abstract

A boiler waste gas treatment device comprises a box body, wherein a partition plate is arranged at the top in the box body to divide the box body into a primary cooling chamber and a secondary cooling chamber, an air inlet mechanism is arranged on the left side of the box body, and a coiled pipe of the air inlet mechanism penetrates through the partition plate and is inserted into the secondary cooling chamber far away from an air collecting pipe end; a filtering mechanism is arranged above the coiled pipe in the secondary cooling cavity, a hollow pipe penetrating through the primary cooling cavity and the secondary cooling cavity is arranged at the upper part in the box body, a spray nozzle is arranged at the bottom of the hollow pipe in the primary cooling cavity, and an atomizing nozzle is arranged on the hollow pipe in the secondary cooling cavity; the bottom of the box body is communicated with a heat recovery pipe, the top of the box body is provided with a negative pressure fan, the air inlet of the negative pressure fan is communicated with the top of the secondary cooling cavity through a pipeline, and the air outlet of the negative pressure fan is provided with a drying mechanism. The advantages are that: structural design is reasonable, when fully purifying boiler waste gas, has realized carrying out better cooling to high temperature boiler waste gas and has handled and realize heat recovery.

Description

Boiler waste gas treatment device

Technical Field

The utility model relates to a waste gas treatment technical field specifically is a boiler exhaust treatment device.

Background

The waste gas purification mainly refers to the treatment of industrial waste gas such as dust particles, smoke and dust, peculiar smell gas and toxic and harmful gas generated in industrial places, common waste gas purification includes factory smoke and waste gas purification, workshop dust and waste gas purification, organic waste gas purification, waste gas peculiar smell purification, acid-base waste gas purification, chemical waste gas purification and the like, waste gas discharged in industrial production often has harmful effects on the environment and human health, before being exhausted into the atmosphere, a purification measure is required to be adopted for treatment, so that the exhaust emission standard requirement is met, the process is called exhaust purification, a complete exhaust purification system generally comprises five parts, namely an exhaust gas collecting device for capturing the polluted gas, a pipeline for connecting each component of the system, a purification device for purifying the polluted gas, a ventilator for providing power for gas flow, and a chimney for fully utilizing the diffusion and dilution capacity of the atmosphere to reduce pollution.

Exhaust gas is also generated in the production of the boiler, the temperature of the exhaust gas of the boiler is high, the exhaust gas of the boiler contains dust particles, and the dust particles are also a main source of PM2.5 in the atmosphere, cause pollution to the environment and cause damage to the health of human bodies. Traditional boiler exhaust treatment device is not only incomplete to exhaust purification, can not lower the temperature to high temperature waste gas betterly in addition among the purification process and handle, leads to waste gas to discharge with higher temperature, causes the useless waste of exhaust gas heat, causes thermal pollution to the environment simultaneously, provides one kind for this and can solve this problem to the exhaust treatment device of high temperature boiler exhaust effective treatment.

Disclosure of Invention

An object of the utility model is to provide a boiler exhaust treatment device can fully purify boiler waste gas, and can carry out better cooling to high temperature boiler waste gas and handle and realize heat recovery, solves boiler waste gas's dust pollution and thermal pollution problem.

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

the utility model provides a boiler exhaust treatment device, includes the box, its special character lies in: a downward extending partition plate is mounted at the top in the box body, the lower end of the partition plate is close to the bottom surface of the box body, the partition plate divides the box body into a primary cooling chamber and a secondary cooling chamber which are arranged left and right, an air inlet mechanism is arranged at the left side of the box body, the air inlet mechanism comprises an air collecting hood, the right side of the air collecting hood is communicated with an air collecting pipe, the end, far away from the air collecting hood, of the air collecting pipe penetrates into the primary cooling chamber and is communicated with a coiled pipe, and the end, far away from the air collecting pipe, of the; a filtering mechanism is arranged above the air outlet of the coiled pipe in the secondary cooling cavity, a hollow pipe penetrating through the primary cooling cavity and the secondary cooling cavity is arranged at the upper part in the box body, a spraying nozzle is arranged at the bottom of the hollow pipe in the primary cooling cavity, the spraying direction of the spraying nozzle points to the coiled pipe, and an atomizing nozzle is arranged on the hollow pipe in the secondary cooling cavity; the bottom of the box body is communicated with a heat recovery pipe, the top of the box body is provided with a negative pressure fan, the air inlet of the negative pressure fan is communicated with the top of the secondary cooling cavity through a pipeline, and the air outlet of the negative pressure fan is provided with a drying mechanism.

Further, the filtering mechanism comprises an active carbon filter screen, an efficient filter screen and a coarse mesh filter screen which are arranged at an upper interval and a lower interval, wherein the coarse mesh filter screen, the efficient filter screen (HEPA) and the active carbon filter screen are fixedly arranged on the inner wall of the secondary cooling cavity.

Furthermore, a water tank is arranged outside the secondary cooling cavity, and a water pump is connected between the water outlet of the water tank and the water inlet of the hollow pipe.

Further, drying mechanism includes the drying cabinet, and top and the equal fixed mounting of interior bottom have the mount pad in the drying cabinet, at mount pad fixed surface installation heater strip, the air intake of drying cabinet and negative-pressure air fan's exhaust pipe intercommunication.

Furthermore, the surface of the gas collecting pipe is provided with a mounting plate, and the gas collecting pipe and the box body are fixedly mounted by the mounting plate.

Further, the spraying direction of the atomizing spray head is directed forwards.

The utility model has the advantages that:

the structure design is reasonable, the spray nozzle is arranged in the first-stage cooling cavity at the bottom of the hollow pipe, the atomizing nozzle is arranged in the second-stage cooling cavity on the hollow pipe, the waste gas in the serpentine pipe is cooled for the first time through spraying of the spray nozzle, the filtered waste gas is cooled for the second time through water mist atomized by the atomizing nozzle, and water absorbing heat of the waste gas in the cooling process is discharged into the heat recovery pipe, so that heat energy is recycled; and moreover, the atomizing nozzle is adopted during secondary cooling, the contact area of water mist generated by the atomizing nozzle and waste gas is large, and the heat exchange effect is good. A filtering mechanism consisting of a coarse filter screen, an efficient filter screen and an active carbon filter screen is arranged in the secondary cooling cavity, the waste gas sequentially passes through the coarse filter screen to filter smoke and dust particles with larger particle sizes, passes through the efficient filter screen to filter the smoke and dust particles with smaller particle sizes, is adsorbed by the active carbon filter screen to remove toxic and harmful gas with peculiar smell, and can effectively remove particles, dust and toxic and harmful gas in the waste gas through triple filtration; the device can carry out better cooling to high temperature boiler waste gas and handle and realize heat recovery when fully purifying boiler waste gas, has solved boiler waste gas's dust pollution and thermal pollution problem.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a left side view of the structure of the gas collecting hood of the present invention;

fig. 3 is a structural section view of the drying box of the present invention.

In the figure: 1-box body, 101-primary cooling chamber, 102-secondary cooling chamber, 2-clapboard, 3-heat recovery pipe, 4-air inlet mechanism, 401-gas collecting hood, 402-gas collecting pipe, 403-mounting plate, 404-coiled pipe, 5-filtering mechanism, 501-coarse hole filter screen, 502-high efficiency filter screen, 503-activated carbon filter screen, 6-hollow pipe, 601-spray nozzle, 602-atomizing spray nozzle, 7-negative pressure fan, 8-drying mechanism, 801-drying box, 802-mounting seat, 803-heating wire, 9-water tank and 10-water pump.

Detailed Description

As shown in the figure, this boiler exhaust treatment device, including box 1, downwardly extending's baffle 2 is installed at the top in box 1, and baffle 2 lower extreme is close to box 1 bottom surface, baffle 2 separates into the one-level cooling chamber 101 and the second grade cooling chamber 102 of arranging about with box 1. An air inlet mechanism 4 is arranged on the left side of the box body 1, the air inlet mechanism 4 comprises a gas collecting hood 401, the right side of the gas collecting hood 401 is communicated with a gas collecting pipe 402, a mounting plate 403 is arranged on the surface of the gas collecting pipe 402, and the gas collecting pipe 402 and the box body 1 are fixedly mounted by the mounting plate 403; the end of the gas collecting pipe 402 far away from the gas collecting hood 401 penetrates into the primary cooling chamber 101 and is communicated with a coiled pipe 404, and the end of the coiled pipe 404 far away from the gas collecting pipe 402 penetrates through the partition board 2 and is inserted into the secondary cooling chamber 102. Be provided with filtering mechanism 5 above the coiled pipe 404 gas outlet in second grade cooling chamber 102, filtering mechanism 5 comprises upper and lower interval arrangement's active carbon filter screen 503, high-efficient filter screen 502 and coarse mesh filter screen 501, high-efficient filter screen 502 and active carbon filter screen 503 fixed mounting are at second grade cooling chamber 102 inner wall. The upper portion sets up the hollow tube 6 that runs through one-level cooling chamber 101 and second grade cooling chamber 102 in box 1, lies in one-level cooling chamber 101 and sets up spray nozzle 601 in hollow tube 6 bottom, spray nozzle 601 and spray the direction and point to coiled pipe 404, lie in setting up atomizer 602 in second grade cooling chamber 102 on hollow tube 6, the directional place ahead of atomizer 602's spraying direction. A water tank 9 is arranged outside the secondary cooling chamber 102, and a water pump 10 is connected between the water outlet of the water tank 9 and the water inlet of the hollow pipe 6. The bottom intercommunication of box 1 has heat recovery pipe 3, at box 1 top installation negative pressure fan 7, negative pressure fan 7 air inlet passes through pipeline and second grade cooling cavity 102 top intercommunication, at negative pressure fan 7 gas vent installation drying mechanism 8, drying mechanism 8 includes drying cabinet 801, and top and the equal fixed mounting in bottom have mount pad 802 in drying cabinet 801, at mount pad 802 fixed surface installation heater strip 803, the air intake of drying cabinet 801 and negative pressure fan 7's air exit intercommunication.

When the device is used, the negative pressure fan 7, the water pump 10 and the drying mechanism 8 are started, the negative pressure fan 7 generates air pressure difference, and waste gas enters the secondary cooling chamber 102 from the gas collecting hood 401 through the gas collecting pipe 402 and the coiled pipe 404; the water pump 10 pumps water in the water tank 9 to the hollow pipe 63, the water is sprayed to the surface of the coiled pipe 404 through the spraying nozzle 601, high-temperature waste gas in the coiled pipe 404 is subjected to primary cooling treatment, the sprayed water absorbs heat of the high-temperature waste gas and then flows into the heat recovery pipe 3 for recycling heat energy, the waste gas subjected to primary cooling is discharged from an air outlet of the coiled pipe 404, smoke particles with larger particle size are filtered through the coarse-hole filter screen 501, the smoke particles with smaller particle size are filtered through the high-efficiency filter screen 502, toxic, harmful and peculiar smell gases are removed through adsorption of the activated carbon filter screen 503, and particles, dust and toxic and harmful gases in the waste gas are effectively removed through triple filtration; the waste gas after triple filtration directly contacts with the water mist from the atomizing nozzle 602 for heat exchange, is cooled for the second time to form wet waste gas, is taken out of the cavity by the negative pressure fan 7, enters the drying mechanism 8 for drying, and is discharged.

The above description is only an example of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a boiler exhaust treatment device, includes the box, its characterized in that: a downward extending partition plate is mounted at the top in the box body, the lower end of the partition plate is close to the bottom surface of the box body, the partition plate divides the box body into a primary cooling chamber and a secondary cooling chamber which are arranged left and right, an air inlet mechanism is arranged at the left side of the box body, the air inlet mechanism comprises an air collecting hood, the right side of the air collecting hood is communicated with an air collecting pipe, the end, far away from the air collecting hood, of the air collecting pipe penetrates into the primary cooling chamber and is communicated with a coiled pipe, and the end, far away from the air collecting pipe, of the; a filtering mechanism is arranged above the air outlet of the coiled pipe in the secondary cooling cavity, a hollow pipe penetrating through the primary cooling cavity and the secondary cooling cavity is arranged at the upper part in the box body, a spraying nozzle is arranged at the bottom of the hollow pipe in the primary cooling cavity, the spraying direction of the spraying nozzle points to the coiled pipe, and an atomizing nozzle is arranged on the hollow pipe in the secondary cooling cavity; the bottom of the box body is communicated with a heat recovery pipe, the top of the box body is provided with a negative pressure fan, the air inlet of the negative pressure fan is communicated with the top of the secondary cooling cavity through a pipeline, and the air outlet of the negative pressure fan is provided with a drying mechanism.

2. The boiler exhaust gas treatment device according to claim 1, characterized in that: the filter mechanism comprises an active carbon filter screen, an efficient filter screen and a coarse pore filter screen which are arranged at an upper interval and a lower interval, wherein the coarse pore filter screen, the efficient filter screen and the active carbon filter screen are fixedly arranged on the inner wall of the secondary cooling cavity.

3. The boiler exhaust gas treatment device according to claim 1, characterized in that: a water tank is arranged outside the secondary cooling cavity, and a water pump is connected between the water outlet of the water tank and the water inlet of the hollow pipe.

4. The boiler exhaust gas treatment device according to claim 1, characterized in that: drying mechanism includes the drying cabinet, and top and the equal fixed mounting of interior bottom have the mount pad in the drying cabinet, at mount pad fixed surface installation heater strip, the air intake of drying cabinet and negative-pressure air fan's air exit intercommunication.

5. The boiler exhaust gas treatment device according to claim 1, characterized in that: the surface of the gas collecting pipe is provided with a mounting plate, and the mounting plate fixedly mounts the gas collecting pipe and the box body.

6. The boiler exhaust gas treatment device according to claim 1, characterized in that: the spraying direction of the atomizing spray head points to the front.