CN211864367U - Zero-emission purification mechanism for boiler waste gas - Google Patents
Zero-emission purification mechanism for boiler waste gas Download PDFInfo
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- CN211864367U CN211864367U CN201922060009.2U CN201922060009U CN211864367U CN 211864367 U CN211864367 U CN 211864367U CN 201922060009 U CN201922060009 U CN 201922060009U CN 211864367 U CN211864367 U CN 211864367U
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Abstract
The utility model aims at providing a zero release purification mechanism of boiler waste gas, its characterized in that: the device consists of a boiler, a boiler waste gas output pipe group, a dust settling cabin, a dedusting gas flow output pipe, a primary filtering tank, a denitration gas flow conveying pipe, a waste heat recovery device, a heat recovery pipe, a waste gas discharge pipe, a secondary filtering tank, a tertiary filtering device and a chimney, wherein the dust settling cabin is provided with a dust settling net and a gas flow fan, and the dedusting gas flow output pipe is provided with a dedusting gas flow collecting port and a gas intercepting valve; overall structure thinking is clear, maintain simple and conveniently, the leakproofness that can guarantee boiler waste gas is connected to totally enclosed's pipeline and equipment, harmful substance and heavy metal in the boiler waste gas can be diluted to multiple filtration and purification treatment, let the poisonous and harmful substance in the boiler waste gas thoroughly absorbed and dilute, reach the definition of industrial waste gas zero release to linked up waste heat recovery equipment, let the waste heat energy source can retrieve and recycle, improved energy utilization, it is safe more energy-conserving, green.
Description
Technical Field
The utility model relates to an exhaust gas zero release environmental protection field especially relates to a boiler waste gas zero release purification mechanism.
Background
Dust (including fly ash and carbon black), sulfur and nitrogen oxides contained in the boiler waste gas are substances polluting the atmosphere, and the emission index of the boiler waste gas can reach several times to dozens of times of the environmental protection specified index without purification; however, with the continuous development and progress of science and technology, the measures for controlling the emission of the substances are also diversified, including pretreatment of combustion, improvement of combustion technology, dust removal, reduction of pollution source emission and the like. The concentration of pollutants in the atmosphere in the area near the chimney can be reduced only by virtue of the high chimney, but the pollution and the influence on the surrounding atmospheric environment are caused along with the gravity, the centrifugal force, the inertia force, the adhesive force, the sound wave, the static electricity and the like of the flue gas of the boiler, so that the waste gas of the boiler needs to be thoroughly filtered and purified; in the past, denitration and desulfurization are basically adopted for treating the boiler waste gas to remove dust and fall dust in a memorable manner, but the procedures are simple, the working mode is single, although a large amount of toxic substances and pollution sources in the boiler exhaust gas are reduced, strong purification and filtration are not achieved, but also only carries out filtration and purification treatment on the boiler waste gas, does not reasonably recycle potential energy in the boiler waste gas, and invisibly wastes a part of energy, the method is not particularly outstanding in the aspect of energy conversion, and the pretreatment and output treatment are not carried out on the boiler waste gas in the aspects of pretreatment before and after denitration and desulfurization, so that the pressure in the links of denitration and desulfurization is higher, the boiler waste gas cannot be thoroughly treated, and the existing equipment needs to be improved to solve the problem of unfavorable links in the middle of boiler waste gas emission.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adopt multiple purification treatment design, remove dust, denitration, desulfurization to the impurity in the boiler waste gas, let the poisonous and harmful substance in the boiler waste gas thoroughly absorbed and dilute, and then reach the waste gas zero release standard to utilize waste heat recovery device to carry out recycle to the heat in the waste gas, improved energy utilization's boiler waste gas zero release purification mechanism.
The technical scheme of the utility model is that: the utility model provides a zero release of boiler waste gas purifies mechanism which characterized in that: the device consists of a boiler, a boiler waste gas output pipe group, a dust-settling cabin, a dedusting gas flow output pipe, a primary filtering tank, a denitration gas flow conveying pipe, a waste heat recovery device, a heat recovery pipe, a waste gas discharge pipe, a secondary filtering tank, a tertiary filtering device and a chimney, wherein the dust-settling cabin is positioned at the next stage of the boiler, the boiler waste gas output pipe group is fixedly connected with the boiler by the dust-settling cabin, one end of the boiler waste gas output pipe group is fixedly connected with the boiler, the other end of the boiler waste gas output pipe group is fixedly connected with the dust-settling cabin, the primary filtering tank is positioned at the next stage of the dust-settling cabin, the dedusting gas flow output pipe is fixedly connected with the dust-settling cabin by the primary filtering tank, one end of the dedusting gas flow output pipe is fixedly connected with the dust-settling cabin, the other end of the dedusting gas flow, the waste heat recovery device is fixedly connected with the primary filter tank by using the denitration air flow conveying pipe, one end of the denitration air flow conveying pipe is fixedly connected with the primary filter tank, the other end of the denitration air flow conveying pipe is fixedly connected with the waste heat recovery device, the heat recovery pipe is positioned at the other side of the waste heat recovery device, the heat recovery pipe is fixedly connected with the waste heat recovery device, the secondary filter tank is positioned at the next stage of the waste heat recovery device, the secondary filter tank is fixedly connected with the waste heat recovery device by using the waste gas discharge pipe, one end of the waste gas discharge pipe is fixedly connected with the secondary filter tank, the other end of the waste gas discharge pipe is fixedly connected with the waste heat recovery device, the tertiary filter device is positioned at the next stage of the secondary filter tank, the tertiary filter device is fixedly connected with the secondary filter tank by using a pipeline, and the tertiary filter device is, the air pump is located on the upper portion of the third-stage filtering device and fixedly connected with the third-stage filtering device, the chimney is located on the next stage of the third-stage filtering device and fixedly connected with the third-stage filtering device through a pipeline.
Further, the boiler waste gas output pipe group is a multi-channel branched pipeline.
Further, the dust fall cabin is a sealing structure.
Further, still be equipped with dust removal net and air current fan on the dust fall cabin, the dust removal net is located the inside in dust fall cabin, dust removal net and dust fall cabin are fixed connection, the air current fan is located the bottom position department of keeping away from the dust fall cabin of boiler waste gas output nest of tubes one side, air current fan is fixed connection with the dust fall cabin, the dust removal net is the fibre net.
Furthermore, the dedusting air flow output pipe is also provided with a dedusting air flow collecting port and an air intercepting valve, the dedusting air flow collecting port is positioned inside the dedusting cabin, the dedusting air flow collecting port is fixedly connected with the dedusting air flow output pipe, the air intercepting valve is positioned at the connecting position of the dedusting air flow output pipe and the primary filter tank, one end of the air intercepting valve is fixedly connected with the dedusting air flow output pipe, and the other end of the air intercepting valve is fixedly connected with the primary filter tank.
Still further, the dust removal air current collection port is of a trapezoidal structure.
Still further, the air shutoff valve is a manual rotary ball valve.
Further, the primary filter tank is a denitration tank body.
Further, the second-stage filter tank is a desulfurization tank body.
Further, the three-stage filtering device is a cooling water purifying device.
The beneficial effects of the utility model reside in that: the whole mechanism is a boiler waste gas zero-emission purification system which adopts a multiple purification treatment design, removes dust, denitrates and desulfurizes impurities in boiler waste gas, thoroughly absorbs and dilutes toxic and harmful substances in the boiler waste gas, and further achieves the waste gas zero-emission standard, and recycles heat in the waste gas by using a waste heat recovery device, so that the energy utilization rate is improved; overall structure thinking is clear, maintain simple and conveniently, and the leakproofness that can guarantee boiler waste gas is connected to totally enclosed's pipeline and equipment, and harmful substance and heavy metal in the boiler waste gas can be diluted to multiple filtration and purification treatment, reach the definition of industrial waste gas zero release to linked waste heat recovery equipment, let the waste heat energy can retrieve and recycle, improved energy utilization and rate, safe energy-conservation, green more.
Drawings
Fig. 1 is a front view of the present invention.
Wherein: 1. boiler 2, boiler waste gas output pipe group 3 and dust settling cabin
4. Dust removal net 5, airflow fan 6, dust removal airflow output pipe
7. Dust removal air current collects mouth 8, blocks valve 9, first grade filter tank
10. Denitration air flow conveying pipe 11, waste heat recovery device 12 and heat recovery pipe
13. Exhaust gas discharge pipe 14, secondary filter tank 15 and tertiary filter device
16. Air pump 17 and chimney
Detailed Description
The following provides a brief description of the embodiments of the present invention with reference to the accompanying drawings.
As shown in figure 1, the zero emission purification mechanism for the boiler waste gas is characterized in that: comprises a boiler 1, a boiler waste gas output pipe group 2, a dust settling cabin 3, a dust removing gas flow output pipe 6, a primary filtering tank 9, a denitration gas flow conveying pipe 10, a waste heat recovery device 11, a heat recovery pipe 12, a waste gas discharge pipe 13, a secondary filtering tank 14, a tertiary filtering device 15 and a chimney 17, wherein the dust settling cabin 3 is positioned at the next stage of the boiler 1, the dust settling cabin 3 is fixedly connected with the boiler 1 by utilizing the boiler waste gas output pipe group 2, one end of the boiler waste gas output pipe group 2 is fixedly connected with the boiler 1, the other end of the boiler waste gas output pipe group 2 is fixedly connected with the dust settling cabin 3, a dust removing net 4 and a gas flow fan 5 are further arranged on the dust settling cabin 3, the dust removing net 4 is positioned inside the dust settling cabin 3, the dust removing net 4 is fixedly connected with the dust settling cabin 3, and the gas flow fan 5 is positioned at the bottom of the cabin 3 far, the dust-settling cabin 3 is fixedly connected with the airflow fan 5, the primary filter tank 9 is positioned at the next stage of the dust-settling cabin 3, the primary filter tank 9 is fixedly connected with the dust-settling cabin 3 by using a dust-removing airflow output pipe 6, one end of the dust-removing airflow output pipe 6 is fixedly connected with the dust-settling cabin 3, the other end of the dust-removing airflow output pipe 6 is fixedly connected with the primary filter tank 9, the dust-removing airflow output pipe 6 is also provided with a dust-removing airflow collecting port 7 and an air-stopping valve 8, the dust-removing airflow collecting port 7 is positioned inside the dust-settling cabin 3, the dust-removing airflow collecting port 7 is fixedly connected with the dust-removing airflow output pipe 6, the air-stopping valve 8 is positioned at the connecting position of the dust-removing airflow output pipe 6 and the primary filter tank 9, one end of the air-stopping valve 8 is fixedly connected with the dust-removing airflow output pipe 6, and the other, the waste heat recovery device 11 is located at the next stage of the primary filter tank 9, the waste heat recovery device 11 utilizes the denitration airflow conveying pipe 10 to be fixedly connected with the primary filter tank 9, one end of the denitration airflow conveying pipe 10 is fixedly connected with the primary filter tank 9, the other end of the denitration airflow conveying pipe 10 is fixedly connected with the waste heat recovery device 11, the heat recovery pipe 12 is located at the other side of the waste heat recovery device 11, the heat recovery pipe 12 is fixedly connected with the waste heat recovery device 11, the secondary filter tank 14 is located at the next stage of the waste heat recovery device 11, the secondary filter tank 14 utilizes the waste gas discharge pipe 13 to be fixedly connected with the waste heat recovery device 11, one end of the waste gas discharge pipe 13 is fixedly connected with the secondary filter tank 14, the other end of the waste gas discharge pipe 13 is fixedly connected with the waste heat recovery device 11, and the tertiary filter device 15 is located at the next stage of the secondary filter tank 14, the three-stage filtering device 15 is fixedly connected with the second-stage filtering tank 14 through a pipeline, the three-stage filtering device 15 is further provided with an air pump 16, the air pump 16 is located at the upper part of the three-stage filtering device 15, the air pump 16 is fixedly connected with the three-stage filtering device 15, the chimney 17 is located at the next stage of the three-stage filtering device 15, and the chimney 17 is fixedly connected with the three-stage filtering device 15 through a pipeline. The boiler waste gas output pipe group 2 is a multi-channel branched pipeline. The dust settling cabin 3 is a sealing structure. The dust removal net 4 is a fiber net. The dust removal air flow collecting port 7 is of a trapezoidal structure. The air shutoff valve 8 is a manual rotary ball valve. The first-stage filter tank 9 is a denitration tank body. The secondary filter tank 14 is a desulfurization tank body. The three-stage filtering device 15 is a cooling water purifying device.
The working mode is as follows: the whole mechanism is a boiler waste gas zero-emission purification system which adopts a multiple purification treatment design, removes dust, denitrates and desulfurizes impurities in boiler waste gas, thoroughly absorbs and dilutes toxic and harmful substances in the boiler waste gas, and further achieves the waste gas zero-emission standard, and recycles heat in the waste gas by using a waste heat recovery device, so that the energy utilization rate is improved; when the device is used, firstly, waste gas generated in the boiler 1 enters the dust-settling cabin 3 through the boiler waste gas output pipe group 2, wherein the boiler waste gas output pipe group 2 adopts a multi-channel forked pipeline, one end of the multi-channel forked pipeline is of a single-joint structure and is connected with the boiler 1, the other end of the multi-channel forked pipeline structure and is connected with the dust-settling cabin 3, and the waste gas can respectively enter the dust-settling cabin 3 from different channels of the boiler waste gas output pipe group 2, so that the boiler waste gas can be dispersed at the initial stage of the treatment stage and is beneficial to subsequent treatment, and the dust-settling cabin 3 adopts a sealing structure, which can ensure that the boiler waste gas can be comprehensively treated in the cabin, a dust-removing net 4 is arranged in the dust-settling cabin 3, the dust-removing net 4 adopts a fiber net, which plays a role of blocking and filtering the boiler waste gas, can adsorb dust, particulate matters and other impurities in the boiler waste gas, the primarily filtered boiler waste gas enters a region with an air flow fan 5 at the bottom of the dust-settling cabin 3 through the dust-removing net 4, the waste gas flows from bottom to top under the drive of the air flow fan 5 and enters a dust-removing air flow output pipe 6 at the top of the dust-settling cabin 3 and enters a primary filter tank 9 along the dust-removing air flow output pipe 6, in addition, a dust-removing air flow collecting port 7 and an air stop valve 8 are respectively arranged at two ends of the dust-removing air flow output pipe 6, the dust-removing air flow collecting port 7 is arranged at the connecting position of the top in, the dust removal air flow collecting port 7 is of a trapezoidal structure, the dust removal air flow collecting port can enable air flow to be intensively output at the top of the dust removal cabin 3 under the driving of the air flow fan 5 after the dust removal cabin 3 is subjected to adsorption filtration, a good air flow gathering effect is achieved, the air blocking valve 8 is installed at the connecting position of the dust removal air flow output pipe 6 and the primary filter tank 9, the air blocking valve 8 is a manual rotary spherical valve, the flow of boiler waste air can be controlled, and if an operator finds that the boiler waste air is abnormal, the air blocking valve 8 can be immediately closed to prevent abnormal air from diffusing; then, the exhaust gas after primary filtration enters the primary filter tank 9 along the dust-removing gas flow output pipe 6, the primary filter tank 9 adopts a denitration tank body for removing nitrogen oxides in the boiler exhaust gas, then, the denitrated boiler exhaust gas enters the waste heat recovery device 11 along the denitration gas flow conveying pipe 10, the waste heat recovery device 11 is connected with a heat recovery pipe 12, the waste heat recovery device can recover and reuse waste heat of the denitrated boiler exhaust gas, the waste heat is output through the heat recovery pipe 12 to provide energy for other heat energy equipment, then, the boiler exhaust gas after heat recovery enters the secondary filter tank 14 through the exhaust gas discharge pipe 13, the secondary filter tank 14 adopts a desulfurization tank body, the sulfide in the boiler exhaust gas can be absorbed and treated, and the waste gas is conveyed to the tertiary filter device 15 along a pipeline, the tertiary filter device 15 adopts a cooling water purification device, purifying the residues in the waste gas by using the cooling water in the waste gas, thereby completing multiple filtration and ensuring that the harmful substances in the waste gas are nearly zero in emission; finally, the purified exhaust gas is extracted by an air pump 16 and enters a chimney 17 through a pipeline so as to be discharged; the structure thinking of whole mechanism is clear, maintain simple and conveniently, and the leakproofness that can guarantee boiler waste gas is connected to totally enclosed pipeline and equipment, and harmful substance and heavy metal in the boiler waste gas can be diluted to multiple filtration and purification treatment, reach the definition of industrial waste gas zero release to linked waste heat recovery equipment, let the waste heat energy source can retrieve and recycle, improved energy utilization and rateed, safe energy-conserving, green more.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", "end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (10)
1. The utility model provides a zero release of boiler waste gas purifies mechanism which characterized in that: the device consists of a boiler, a boiler waste gas output pipe group, a dust-settling cabin, a dedusting gas flow output pipe, a primary filtering tank, a denitration gas flow conveying pipe, a waste heat recovery device, a heat recovery pipe, a waste gas discharge pipe, a secondary filtering tank, a tertiary filtering device and a chimney, wherein the dust-settling cabin is positioned at the next stage of the boiler, the boiler waste gas output pipe group is fixedly connected with the boiler by the dust-settling cabin, one end of the boiler waste gas output pipe group is fixedly connected with the boiler, the other end of the boiler waste gas output pipe group is fixedly connected with the dust-settling cabin, the primary filtering tank is positioned at the next stage of the dust-settling cabin, the dedusting gas flow output pipe is fixedly connected with the dust-settling cabin by the primary filtering tank, one end of the dedusting gas flow output pipe is fixedly connected with the dust-settling cabin, the other end of the dedusting gas flow, the waste heat recovery device is fixedly connected with the primary filter tank by using the denitration air flow conveying pipe, one end of the denitration air flow conveying pipe is fixedly connected with the primary filter tank, the other end of the denitration air flow conveying pipe is fixedly connected with the waste heat recovery device, the heat recovery pipe is positioned at the other side of the waste heat recovery device, the heat recovery pipe is fixedly connected with the waste heat recovery device, the secondary filter tank is positioned at the next stage of the waste heat recovery device, the secondary filter tank is fixedly connected with the waste heat recovery device by using the waste gas discharge pipe, one end of the waste gas discharge pipe is fixedly connected with the secondary filter tank, the other end of the waste gas discharge pipe is fixedly connected with the waste heat recovery device, the tertiary filter device is positioned at the next stage of the secondary filter tank, the tertiary filter device is fixedly connected with the secondary filter tank by using a pipeline, and the tertiary filter device is, the air pump is located on the upper portion of the third-stage filtering device and fixedly connected with the third-stage filtering device, the chimney is located on the next stage of the third-stage filtering device and fixedly connected with the third-stage filtering device through a pipeline.
2. The zero-emission purification mechanism for boiler exhaust gas according to claim 1, characterized in that: the boiler waste gas output pipe group is a multi-channel branched pipeline.
3. The zero-emission purification mechanism for boiler exhaust gas according to claim 1, characterized in that: the dust settling cabin is of a sealing structure.
4. The zero-emission purification mechanism for boiler exhaust gas according to claim 1, characterized in that: still be equipped with dust removal net and air current fan on the dust fall cabin, the dust removal net is located the inside in dust fall cabin, dust removal net and dust fall cabin are fixed connection, the air current fan is located the bottom position department in the dust fall cabin of keeping away from boiler waste gas output pipe group one side, air current fan is fixed connection with the dust fall cabin, the dust removal net is the fibre web.
5. The zero-emission purification mechanism for boiler exhaust gas according to claim 1, characterized in that: the dust removal device is characterized in that a dust removal air flow collecting port and an air intercepting valve are further arranged on the dust removal air flow output pipe, the dust removal air flow collecting port is located inside the dust settling cabin, the dust removal air flow collecting port is fixedly connected with the dust removal air flow output pipe, the air intercepting valve is located at the connecting position of the dust removal air flow output pipe and the primary filter tank, one end of the air intercepting valve is fixedly connected with the dust removal air flow output pipe, and the other end of the air intercepting valve is fixedly connected with the primary filter tank.
6. The zero-emission purification mechanism for boiler exhaust gas according to claim 5, characterized in that: the dust removal air flow collecting port is of a trapezoidal structure.
7. The zero-emission purification mechanism for boiler exhaust gas according to claim 5, characterized in that: the air intercepting valve is a manual rotary spherical valve.
8. The zero-emission purification mechanism for boiler exhaust gas according to claim 1, characterized in that: the primary filter tank is a denitration tank body.
9. The zero-emission purification mechanism for boiler exhaust gas according to claim 1, characterized in that: the secondary filter tank is a desulfurization tank body.
10. The zero-emission purification mechanism for boiler exhaust gas according to claim 1, characterized in that: the three-stage filtering device is a cooling water purifying device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922060009.2U CN211864367U (en) | 2019-11-26 | 2019-11-26 | Zero-emission purification mechanism for boiler waste gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922060009.2U CN211864367U (en) | 2019-11-26 | 2019-11-26 | Zero-emission purification mechanism for boiler waste gas |
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| CN211864367U true CN211864367U (en) | 2020-11-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118122051A (en) * | 2024-05-06 | 2024-06-04 | 广州中建能源科技有限公司 | Waste gas treatment equipment and use method thereof |
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2019
- 2019-11-26 CN CN201922060009.2U patent/CN211864367U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118122051A (en) * | 2024-05-06 | 2024-06-04 | 广州中建能源科技有限公司 | Waste gas treatment equipment and use method thereof |
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