CN210861138U - Pollutant decomposition treatment device - Google Patents

Abstract

The utility model discloses a pollutant decomposition processing device, natural gas burner is installed to the import department of pyrolysis chamber, the pyrolysis chamber front portion is fixed with waste gas import pipe, the export of pyrolysis chamber is connected with the import of incineration chamber, the incineration chamber outside is fixed with the cooling jacket, the outside of cooling jacket front portion is fixed with annular wind clamp cover, the outside at cooling jacket middle part is fixed with the overgrate air clamp cover, the inboard of wind clamp cover is fixed with the overgrate air spray tube of equipartition, the wind clamp cover communicates with each other through the inner chamber of wind spray tube and incineration chamber, the inboard of overgrate air clamp cover is fixed with the overgrate air spray tube of equipartition, the overgrate air clamp cover communicates with each other through the overgrate air spray tube and the inner chamber of incineration chamber, the export of incineration chamber is connected with exhaust-heat boiler, install the flue gas valve on the return flue, the return flue still communicates with each, The secondary air presss from both sides the cover and is connected, the utility model has the advantages of clean environmental protection, treatment effeciency are high.

Description

Pollutant decomposition treatment device

Technical Field

The utility model belongs to the technical field of air purification device, concretely relates to pollutant decomposition processing apparatus.

Background

Modern industrial processes are constantly improving and more compounds and products can be produced more efficiently, but virtually all processes inevitably produce unwanted by-products or waste. These by-products exist in the form of gas, liquid or solid phases containing large amounts of hydrocarbons and must be safely disposed of to prevent potential environmental pollution. Almost all industrial fields produce by-products or waste products, such as petrochemical, fine chemical, pharmaceutical, metallurgical, paper, textile, printing and dyeing and the like. The by-products or waste may be product residues, or raw materials that are not completely consumed, and may be impurities and catalysts present in the raw materials. Organic waste gas has the characteristics of great harm and difficult treatment, and is always a link in the industrial field where pollution is easy to occur.

In the prior art, processes such as high-temperature incineration, catalytic oxidation, absorption and the like are mostly adopted for treatment, but the overall effect is not obvious, the defect of low treatment efficiency exists, and meanwhile, secondary pollution is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a pollutant decomposition processing apparatus.

A pollutant decomposition treatment device comprises a pyrolysis chamber and an incineration chamber; the import department of pyrolysis chamber installs the natural gas burner, the pyrolysis chamber front portion is fixed with waste gas import pipe, the export of pyrolysis chamber is connected with the import of incineration chamber, the incineration chamber is the cylinder structure, the incineration chamber outside is fixed with the cooling jacket, the outside of cooling jacket front portion is fixed with annular once wind and presss from both sides the cover, the outside at cooling jacket middle part is fixed with the overgrate air and presss from both sides the cover, the inboard that once wind pressed from both sides the cover is fixed with the once wind spray tube of equipartition, once wind presss from both sides the cover and communicates with each other through the inner chamber of once wind spray tube and incineration chamber, the inboard that overgrate air pressed from both sides the cover is fixed with the overgrate air spray tube of equipartition, the overgrate air presss from both sides the cover and communicates with each other through the overgrate air spray tube and incineration chamber, the export of incineration, the induced draft fan export is connected with secondary air fan's import through the return flue, install the flue gas valve on the return flue, the return flue still communicates with each other with the atmosphere, secondary air fan's export is connected with once wind clamp cover, overgrate air clamp cover respectively.

Preferably, the natural gas combustor is provided with a natural gas inlet pipe and a primary air port, and the primary air port is connected with an outlet of the primary air fan.

Preferably, the upper part and the lower part of the cooling jacket are respectively provided with a water inlet pipe and a water outlet pipe, and the water outlet pipe at the upper part of the cooling jacket is connected with a water feeding pipe of the waste heat boiler.

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

the utility model discloses when using, the natural gas spouts into the pyrolysis chamber through the natural gas combustor, the wind is followed the natural gas combustor blowout, wind and natural gas take place incomplete combustion in the pyrolysis chamber, waste gas lets in the pyrolysis chamber from waste gas import pipe, macromolecule organic matter in the waste gas splits into the gas of micromolecule in the pyrolysis chamber, the high temperature flue gas that contains the combustible substance enters into the combustion chamber, the overgrate air, the tertiary air is respectively from the wind spray tube, the hierarchical spraying in overgrate air spray tube, the overgrate air, the heat that emits that tertiary air and combustible substance take place to burn, absorb through the cooling jacket, thereby reduce the temperature of combustion chamber, simultaneously, the flue gas gets into the overgrate air machine from the return flue, after the overgrate air, mix into the flue gas in the tertiary air, can further reduce combustion temperature, ensure that combustible component can burn out completely under the temperature condition within 1000 ℃ in the combustion chamber, and the nitrogen oxide overproof emission is avoided. The utility model realizes the control of nitrogen oxide through the distribution of the air fan and the recirculation of the flue gas, and has the advantages of cleanness and environmental protection; through setting up pyrolysis chamber, incineration chamber secondary reaction to ensure that organic waste gas is burnt completely, have the advantage that the treatment effeciency is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a pollutant decomposition and treatment device of the present invention.

In the figure, 1, a natural gas inlet pipe, 2, a primary air port, 3, a natural gas burner, 4, a primary air fan, 5, a waste gas inlet pipe, 6, a pyrolysis chamber, 7, an incineration chamber, 8, a cooling jacket, 9, a primary air spray pipe, 10, a primary air jacket, 11, a secondary air fan, 12, a chimney, 13, a flue gas valve, 14, an induced draft fan, 15, a waste heat boiler, 16, an economizer, 17, a secondary air jacket, 18 and a secondary air spray pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, a pollutant decomposition treatment device comprises a pyrolysis chamber 6 and an incineration chamber 7; a natural gas burner 3 is installed at an inlet of the pyrolysis chamber 6, a waste gas inlet pipe 5 is fixed at the front part of the pyrolysis chamber 6, an outlet of the pyrolysis chamber 6 is connected with an inlet of an incineration chamber 7, the incineration chamber 7 is of a cylindrical structure, a cooling jacket 8 is fixed at the outer side of the incineration chamber 7, an annular primary air jacket 10 is fixed at the outer side of the front part of the cooling jacket 8, a secondary air jacket 17 is fixed at the outer side of the middle part of the cooling jacket 8, uniformly distributed primary air spray pipes 9 are fixed at the inner side of the primary air jacket 10, the primary air jacket 10 is communicated with an inner cavity of the incineration chamber 7 through the primary air spray pipes 9, uniformly distributed secondary air spray pipes 18 are fixed at the inner side of the secondary air jacket 17, the secondary air jacket 17 is communicated with the inner cavity of the incineration chamber 7 through the secondary air spray pipes 18, and an outlet of the incineration chamber 7 is, economizer 16, draught fan 14, chimney 12 are installed in proper order to exhaust-heat boiler 15's rear portion, the export of draught fan 14 is connected with secondary fan 11's import through the return flue, install flue gas valve 13 on the return flue, the return flue still communicates with each other with the atmosphere, secondary fan 11's export is connected with once wind jacket 10, secondary wind jacket 17 respectively, be equipped with natural gas import pipe 1, primary air inlet 2 on the natural gas combustor 3, primary air inlet 2 is connected with primary fan 4's export, the upper and lower part of cooling jacket 8 is equipped with inlet tube and outlet pipe respectively, and the outlet pipe on cooling jacket 8 upper portion is connected with exhaust-heat boiler 15's feed pipe.

The utility model discloses a theory of operation is:

when the utility model is used, natural gas is sprayed into the pyrolysis chamber 6 through the natural gas burner 3, primary air is sprayed out from the natural gas burner 3, incomplete combustion of the primary air and the natural gas occurs in the pyrolysis chamber 6, waste gas is introduced into the pyrolysis chamber 6 from the waste gas inlet pipe 5, macromolecular organic matters in the waste gas are cracked into micromolecular gas in the pyrolysis chamber 6, high-temperature flue gas containing combustible materials enters the incineration chamber 7, secondary air and tertiary air are sprayed in a grading way from the primary air spray pipe 9 and the secondary air spray pipe 18 respectively, secondary air and discharged heat generated by combustion of the tertiary air and the combustible materials are absorbed by the cooling jacket 8, thereby reducing the temperature of the incineration chamber 7, simultaneously, flue gas enters the secondary fan 11 from a backflow flue, after the secondary air and the tertiary air are mixed with the flue gas, the combustion temperature can be further reduced, the combustible components can be ensured to be completely burned out under the temperature condition within 1000 ℃ in the incineration chamber 7, and the nitrogen oxide overproof emission is avoided. The utility model realizes the control of nitrogen oxide through the distribution of the air fan and the recirculation of the flue gas, and has the advantages of cleanness and environmental protection; through setting up pyrolysis chamber 6, incineration chamber 7 secondary reaction to ensure that organic waste gas is burnt completely, have the advantage that the treatment effeciency is high.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (3)

1. A pollutant decomposition treatment device comprises a pyrolysis chamber (6) and an incineration chamber (7); the method is characterized in that: the natural gas combustor (3) is installed at an inlet of the pyrolysis chamber (6), a waste gas inlet pipe (5) is fixed at the front part of the pyrolysis chamber (6), an outlet of the pyrolysis chamber (6) is connected with an inlet of the incineration chamber (7), the incineration chamber (7) is of a cylindrical structure, a cooling jacket (8) is fixed at the outer side of the incineration chamber (7), an annular primary air jacket (10) is fixed at the outer side of the front part of the cooling jacket (8), a secondary air jacket (17) is fixed at the outer side of the middle part of the cooling jacket (8), uniformly distributed primary air spray pipes (9) are fixed at the inner side of the primary air jacket (10), the primary air jacket (10) is communicated with an inner cavity of the incineration chamber (7) through the primary air spray pipes (9), uniformly distributed secondary air spray pipes (18) are fixed at the inner side of the secondary air jacket (17), and the secondary air jacket (17) is communicated with the inner cavity of the incineration chamber (7) through the secondary air spray pipes (18, the export of incineration chamber (7) is connected with exhaust-heat boiler (15), economizer (16), draught fan (14), chimney (12) are installed in proper order to the rear portion of exhaust-heat boiler (15), draught fan (14) export is connected with the import of secondary fan (11) through the return flue, install flue gas valve (13) on the return flue, the return flue still communicates with each other with the atmosphere, the export of secondary fan (11) is connected with once wind clamp cover (10), overgrate air clamp cover (17) respectively.

2. A pollutant decomposition treating device according to claim 1, wherein: the natural gas combustor (3) is provided with a natural gas inlet pipe (1) and a primary air port (2), and the primary air port (2) is connected with an outlet of a primary fan (4).

3. A pollutant decomposition treating device according to claim 1, wherein: the upper part and the lower part of the cooling jacket (8) are respectively provided with a water inlet pipe and a water outlet pipe, and the water outlet pipe at the upper part of the cooling jacket (8) is connected with a water supply pipe of the waste heat boiler (15).

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