CN211358385U - Dirt nitre integration equipment device - Google Patents
Dirt nitre integration equipment device Download PDFInfo
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- CN211358385U CN211358385U CN201921826208.3U CN201921826208U CN211358385U CN 211358385 U CN211358385 U CN 211358385U CN 201921826208 U CN201921826208 U CN 201921826208U CN 211358385 U CN211358385 U CN 211358385U
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Abstract
The utility model provides a dust and nitrate integrated device, which comprises a raw flue gas inlet section, a dust removal system, an SCR denitration system and a clean flue gas outlet section, wherein flue gas flows into the raw flue gas inlet section, the dust removal system, the SCR denitration system and the clean flue gas outlet section in sequence; the dust removal system is a bag type dust remover or an electric bag dust remover; the SCR denitration system is arranged in a gas purifying chamber of the dust remover or the purified flue gas outlet section. Foretell a dirt nitre integration equipment device removes dust and denitration adopts integrated structure, has reduced flue gas resistance loss, reduces the operation cost.
Description
Technical Field
The utility model relates to a comprehensive treatment technology of industrial waste gas pollutants and a process route thereof.
Background
For the treatment of dust and nitrogen oxides in industrial waste gas pollutants, the traditional process route is as follows: firstly, carrying out SCR denitration to remove nitrogen oxides in flue gas under the working conditions that the temperature of the flue gas is 280-420 ℃ and the flue gas contains a large amount of dust; then, dust is removed by an electric dust remover, a bag-type dust remover or an electric bag-type dust remover under the working condition that the temperature of the flue gas is below 260 ℃; so as to purify and treat dust and nitrogen oxides in the industrial waste gas. However, the traditional technical process route has more defects: 1. the denitration and dust removal process sections belong to the implementation of sectional arrangement, and have the advantages of large occupied area, large investment, large resistance and high operation cost; 2. the denitration catalyst has serious phenomena of ash blockage, abrasion and poisoning, the service life of the catalyst is short, the service life of the catalyst is usually 1 to 2 years, and the operation and maintenance costs of soot blowing, overhauling, replacement and the like are high.
The dust and nitrate integrated equipment device aims at solving the problems: firstly, under the working condition that the temperature of flue gas is between 280 and 420 ℃ and the flue gas contains a large amount of dust, purifying dust-containing raw flue gas by a dust remover, and enabling the dust-free high-temperature flue gas to enter an SCR denitration reactor for denitration; thereby achieving the following effects: 1. the flue gas resistance in the dedusting and denitration process is reduced, and the energy consumption is reduced; 2. dust and nitre are integrated to reduce the occupied area; 3. the dust removal is carried out firstly and then the denitration is carried out so as to solve the phenomena of ash blockage, abrasion and poisoning of the catalyst, prolong the service life of the catalyst and reduce or even eliminate the operation and maintenance cost brought by the phenomena.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the main technical problem that a dirt nitre integrated device is provided, dust removal and denitration adopt the integral structure, have reduced flue gas resistance loss, reduce the operation cost.
In order to solve the technical problem, the utility model provides a dirt nitre integrated device which characterized in that: the system comprises an original flue gas inlet section, a dust removal system, an SCR denitration system and a clean flue gas outlet section, wherein flue gas flows into the original flue gas inlet section, the dust removal system, the SCR denitration system and the clean flue gas outlet section in sequence;
the dust removal system is a bag type dust remover or an electric bag dust remover;
the SCR denitration system is arranged in a gas purifying chamber of the dust remover or the purified flue gas outlet section.
In a preferred embodiment: the SCR denitration system comprises an ammonia injection grid, an SCR denitration reactor and an ammonia evaporator, and the clean flue gas passing through the dust removal system sequentially passes through the ammonia injection grid and the SCR denitration reactor.
In a preferred embodiment: the raw flue gas inlet section comprises a raw flue gas inlet flue, an inlet horn flue and a raw flue gas flow equalizing plate.
In a preferred embodiment: the flue gas entering mode of the original flue gas inlet flue is at least one of horizontal flue gas inlet, upper flue gas inlet and lower flue gas inlet.
In a preferred embodiment: the raw flue gas flow equalizing plate is selected from at least one of a ridge type flow equalizing plate, a shutter type flow equalizing plate or a perforated plate type flow equalizing plate.
In a preferred embodiment: the clean flue gas outlet section comprises an outlet trumpet flue and an outlet flue.
In a preferred embodiment: a uniform flow field guide plate is arranged in the outlet horn flue; the smoke outflow mode of the outlet flue is a horizontal mode or a vertical upward mode.
In a preferred embodiment: the periphery wall of SCR deNOx systems with the internal perisporium of air-purifying chamber is connected, perhaps SCR deNOx systems's periphery wall with the internal perisporium wall connection of clean flue gas export section.
In a preferred embodiment: the device also comprises a shell, wherein the original flue gas inlet section, the dust removal system, the SCR denitration system and the clean flue gas outlet section are positioned in the shell.
Compared with the prior art, the technical scheme of the utility model possess following beneficial effect:
the utility model provides a dust and saltpeter integrated device, which is characterized in that the flue gas enters a dust and saltpeter integrated device and then is firstly removed of dust in the flue gas through a dust removal system, the flue gas after dust removal enters an SCR denitration system to be fully contacted with a catalyst to remove NOX, and the space occupied by environment-friendly equipment is reduced through the integrated structural arrangement, the equipment structure is simple, and the investment cost is reduced; the flue gas after dust removal enters an SCR denitration system, so that the running environment of SCR equipment is greatly improved, and the conditions of SCR ash blockage, abrasion and alkali metal poisoning are effectively relieved; due to the improvement of the operating environment, the inactivation rate of SCR is greatly delayed, the through-flow aperture of the denitration catalyst module can be made smaller due to the low dust concentration, the reaction surface area is increased under the same volume, the reaction is more sufficient, and the ultralow emission is realized; the reasonable optimization of integrated structure through equipment arranges, has reduced flue gas resistance loss, reduces the operation cost.
Drawings
Fig. 1 is a schematic view of a dust and niter integrated device in a preferred embodiment 1 of the present invention;
fig. 2 is a schematic view of a dust and niter integrated device in the preferred embodiment 2 of the present invention;
fig. 3 is a schematic view of a dust and niter integrated device in the preferred embodiment 3 of the present invention;
fig. 4 is a schematic view of a dust and niter integrated device in the preferred embodiment 4 of the present invention;
fig. 5 is a schematic view of a dust and niter integrated device in the preferred embodiment 5 of the present invention;
fig. 6 is a schematic view of a dust and niter integrated device according to a preferred embodiment 6 of the present invention;
fig. 7 is a schematic view of a dust and niter integrated device in the preferred embodiment 7 of the present invention;
fig. 8 is a schematic view of a dust and niter integrated device according to a preferred embodiment 8 of the present invention;
fig. 9 is a schematic view of a dust and niter integrated device in preferred embodiment 9 of the present invention.
Detailed Description
The following is a further description of the embodiments of the present invention, but the embodiments of the present invention are not limited thereto.
Example 1
Referring to fig. 1, a dust and nitrate integrated device comprises a raw flue gas inlet section 1, a dust removal system 2, an SCR denitration system 3 and a clean flue gas outlet section 4, wherein flue gas flows into the raw flue gas inlet section 1, the dust removal system and the SCR denitration system in sequence;
the dust removal system 2 is a bag type dust remover or an electric bag dust remover;
the SCR denitration system is arranged in a gas purifying chamber of the dust remover, and the outer peripheral wall of the SCR denitration system 3 is connected with the inner peripheral wall of the gas purifying chamber.
Specifically, the SCR denitration system 3 comprises an ammonia injection grid, an SCR denitration reactor and an ammonia evaporator, and the clean flue gas passing through the dust removal system 2 sequentially passes through the ammonia injection grid, the SCR denitration reactor and the ammonia evaporator.
In this embodiment, the raw flue gas inlet section 1 includes a raw flue gas inlet flue, an inlet trumpet flue, and a raw flue gas flow equalizing plate. The flue gas entering mode of the original flue gas inlet flue is horizontal flue gas entering.
The raw flue gas flow equalizing plate is selected from at least one of a ridge type flow equalizing plate, a shutter type flow equalizing plate or a perforated plate type flow equalizing plate, can be formed in a single mode or formed by mixing multiple modes, and is provided with 1 layer to 3 layers.
The smoke outflow mode of the clean smoke outlet section 4 is a horizontal mode.
According to the dust and nitrate integrated device, after entering the dust and nitrate integrated device, the flue gas is firstly subjected to dust removal by the dust removal system 2, and the flue gas subjected to dust removal enters the SCR denitration system 3 to be fully contacted with the catalyst to remove NOX, so that the occupied space of environment-friendly equipment is reduced through the integrated structural arrangement, the equipment structure is simple, and the investment cost is reduced; the flue gas after dust removal enters an SCR denitration system 3, so that the running environment of SCR equipment is greatly improved, and the conditions of SCR ash blockage, abrasion and alkali metal poisoning are effectively relieved; due to the improvement of the operating environment, the inactivation rate of SCR is greatly delayed, the through-flow aperture of the denitration catalyst module can be made smaller due to the low dust concentration, the reaction surface area is increased under the same volume, the reaction is more sufficient, and the ultralow emission is realized; the reasonable optimization of integrated structure through equipment arranges, has reduced flue gas resistance loss, reduces the operation cost.
In this embodiment, because of the integration of dust and nitrate, the integrated device further includes a housing 5, and the raw flue gas inlet section 1, the dust removal system 2, the SCR denitration system 3, and the clean flue gas outlet section 4 are located in the housing 5 to form a whole.
Example 2
Referring to fig. 2, the present embodiment is different from embodiment 1 in that: in this embodiment, the flue gas entering mode of the original flue gas inlet flue is upper flue gas.
Example 3
Referring to fig. 3, the present embodiment is different from embodiment 1 in that: in this embodiment, the flue gas entering mode of the original flue gas inlet flue is downward flue gas entering mode.
Example 4
Referring to fig. 4, the present embodiment is different from embodiment 1 in that: in this embodiment, the clean flue gas outlet section includes an outlet trumpet flue 41 and an outlet trumpet flue 42, and a uniform flow field guide plate is arranged in the outlet trumpet flue 41; the flue gas outflow mode of the outlet flue 42 is a horizontal mode.
In the present embodiment, the SCR denitration system 3 is provided in the clean flue gas outlet section 4, and the outer peripheral wall of the SCR denitration system 3 is connected to the inner peripheral wall of the outlet flue 42.
Example 5
Referring to fig. 5, the present embodiment is different from embodiment 1 in that: in this embodiment, the clean flue gas outlet section 4 includes an outlet trumpet flue 41 and an outlet trumpet flue 42, and a uniform flow field guide plate is arranged in the outlet trumpet flue 41; the flue gas outflow mode of the outlet flue 42 is a vertical upward mode.
In the present embodiment, the SCR denitration system 3 is provided in the clean flue gas outlet section 4, and the outer peripheral wall of the SCR denitration system 3 is connected to the inner peripheral wall of the outlet flue 42.
Example 6
Referring to fig. 6, the present embodiment is different from embodiment 1 in that: the electrode area in example 1 is eliminated and the raw flue gas inlet section 1 in this example comprises a raw flue gas inlet flue, a raw flue gas flow equalizer. The flue gas entering mode of the original flue gas inlet flue is horizontal flue gas entering.
Example 7
Referring to fig. 7, the present embodiment is different from embodiment 6 in that: in this embodiment, the raw flue gas inlet section 1 further comprises an inlet trumpet flue. After entering from the original flue gas inlet flue, the flue gas passes through the inlet horn flue and the original flue gas flow equalizing plate and then flows to the dust removal system 2.
Example 8
Referring to fig. 8, the present embodiment is different from embodiment 6 in that: in this embodiment, the clean flue gas outlet section 4 includes an outlet trumpet flue 41 and an outlet trumpet flue 42, and a uniform flow field guide plate is arranged in the outlet trumpet flue 41; the flue gas outflow mode of the outlet flue 42 is a vertical upward mode.
In the present embodiment, the SCR denitration system 3 is provided in the clean flue gas outlet section 4, and the outer peripheral wall of the SCR denitration system 3 is connected to the inner peripheral wall of the outlet flue 42.
Example 9
Referring to fig. 9, the present embodiment is different from embodiment 8 in that: the flue gas outflow mode of the outlet flue 42 is a horizontal mode.
The above description is only an exemplary embodiment of the present invention, and the scope of the present invention should not be limited accordingly. The equivalent changes and modifications made according to the patent scope and the content of the specification of the present invention should still fall within the scope covered by the present invention.
Claims (9)
1. The utility model provides a dirt nitre integration equipment device which characterized in that: the system comprises an original flue gas inlet section, a dust removal system, an SCR denitration system and a clean flue gas outlet section, wherein flue gas flows into the original flue gas inlet section, the dust removal system, the SCR denitration system and the clean flue gas outlet section in sequence;
the dust removal system is a bag type dust remover or an electric bag dust remover;
the SCR denitration system is arranged in a gas purifying chamber of the dust remover or the purified flue gas outlet section.
2. A dust and niter integrated device according to claim 1, which is characterized in that: the SCR denitration system comprises an ammonia injection grid, an SCR denitration reactor and an ammonia evaporator, and the clean flue gas passing through the dust removal system sequentially passes through the ammonia injection grid and the SCR denitration reactor.
3. A dust and niter integrated device according to claim 1, which is characterized in that: the raw flue gas inlet section comprises a raw flue gas inlet flue, an inlet horn flue and a raw flue gas flow equalizing plate.
4. A dirt and saltpeter integrated device as in claim 3, wherein: the flue gas entering mode of the original flue gas inlet flue is at least one of horizontal flue gas inlet, upper flue gas inlet and lower flue gas inlet.
5. A dust and niter integrated device according to claim 3 or 4, wherein: the raw flue gas flow equalizing plate is selected from at least one of a ridge type flow equalizing plate, a shutter type flow equalizing plate or a perforated plate type flow equalizing plate.
6. A dust and niter integrated device according to claim 1, which is characterized in that: the clean flue gas outlet section comprises an outlet trumpet flue and an outlet flue.
7. A dirt and saltpeter integrated device as in claim 6, wherein: a uniform flow field guide plate is arranged in the outlet horn flue; the smoke outflow mode of the outlet flue is a horizontal mode or a vertical upward mode.
8. A dust and niter integrated device according to claim 1, which is characterized in that: the periphery wall of SCR deNOx systems with the internal perisporium of air-purifying chamber is connected, perhaps SCR deNOx systems's periphery wall with the internal perisporium wall connection of clean flue gas export section.
9. A dust and niter integrated device according to claim 1, which is characterized in that: the device also comprises a shell, wherein the original flue gas inlet section, the dust removal system, the SCR denitration system and the clean flue gas outlet section are positioned in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921826208.3U CN211358385U (en) | 2019-10-28 | 2019-10-28 | Dirt nitre integration equipment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921826208.3U CN211358385U (en) | 2019-10-28 | 2019-10-28 | Dirt nitre integration equipment device |
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| Publication Number | Publication Date |
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| CN211358385U true CN211358385U (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921826208.3U Active CN211358385U (en) | 2019-10-28 | 2019-10-28 | Dirt nitre integration equipment device |
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| CN (1) | CN211358385U (en) |
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2019
- 2019-10-28 CN CN201921826208.3U patent/CN211358385U/en active Active
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