CN111852618A - Online regeneration offline ash removal ship tail gas treatment system and method - Google Patents
Online regeneration offline ash removal ship tail gas treatment system and method Download PDFInfo
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- CN111852618A CN111852618A CN202010689164.5A CN202010689164A CN111852618A CN 111852618 A CN111852618 A CN 111852618A CN 202010689164 A CN202010689164 A CN 202010689164A CN 111852618 A CN111852618 A CN 111852618A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
- F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/0232—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles removing incombustible material from a particle filter, e.g. ash
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
- F01N3/027—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
Abstract
The invention relates to an online regeneration offline ash removal ship tail gas treatment system, which comprises an inlet valve, an air throttle, a combustible gas and particulate matter treatment combined device, an outlet valve, a reducing agent metering and spraying device, an SCR device, a compressed air valve and a filter, wherein the inlet valve is connected with the inlet valve; an inlet valve and an outlet valve are respectively arranged on an inlet main pipe and an outlet main pipe of the combustible gas and particulate matter treatment combined device; the combustible gas and particulate matter treatment combined device is composed of a plurality of combined device units, wherein each combined device unit is sequentially provided with an electric heater, a DOC catalyst and a DPF catalyst from bottom to top, a differential pressure transmitter is arranged on the body of each combined device unit, and a temperature switch is arranged at the outlet of each combined device unit. The invention has the beneficial effects that: the invention realizes the purposes of on-line regeneration and off-line ash removal through the combustible gas and particulate matter treatment combined device, the compressed air valve and the particulate matter filter, removes gaseous and solid pollutants in tail gas, and has low energy consumption and convenient regeneration.
Description
Technical Field
The patent relates to the technical field of ship tail gas treatment, in particular to a renewable ship tail gas treatment system.
Background
The tail gas emission of ships is one of the main sources of air pollution in port cities and inland river areas, and along with the development of shipping industry, the tail gas emission of ships seriously affects the air quality and brings great negative effects on the environment and human health, so that the control of the tail gas pollutant emission of ships is urgent.
DPF + SCR + DOC is a commonly used ship tail gas comprehensive treatment system at present. However, the oil products burned by the ship engine are poor, the particulate matters and sulfur dioxide in the tail gas are high, the performances of the DOC catalyst and the DPF catalyst are seriously influenced, the regeneration needs to be carried out regularly, and the non-combustible particulate matters need to be cleaned regularly. Conventionally, active regeneration systems that burn collected particulates by increasing the temperature of the flue gas through an external environment are currently the more prevalent regeneration method. Generally, DPF adopts oil injection combustion regeneration, the system is complex in the method, fuel oil needs to be consumed continuously, the requirements on the atomization effect and the arrangement condition of oil injection are extremely high, and uniform injection is difficult for a large-flow tail gas treatment system. Meanwhile, the cleaning of incombustible particulate matters needs to be carried out by dismantling and returning to a factory for ash removal. Seriously affecting the continuous operation of the ship.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an online regeneration off-line deashing ship tail gas treatment system and method.
The online regeneration offline ash removal ship tail gas treatment system comprises an inlet valve, an air throttle, a combustible gas and particulate matter treatment combined device, an outlet valve, a reducing agent metering and spraying device, an SCR device, a compressed air valve and a filter; an inlet valve and an outlet valve are respectively arranged on an inlet main pipe and an outlet main pipe of the combustible gas and particulate matter treatment combined device; the combustible gas and particulate matter treatment combined device consists of a plurality of combined device units, wherein each combined device unit is sequentially provided with an electric heater, a DOC catalyst and a DPF catalyst from bottom to top; an air throttle is arranged at the inlet of each combined device unit, when the air throttle is inserted, a certain amount of tail gas enters the combined device unit and is heated under the action of an electric heater, and the heating temperature is 500-600 ℃; the particle filter is arranged in parallel on the combustible gas and particle treatment combination device; a compressed air valve is arranged on an outlet main pipe of the combustible gas and particulate matter treatment combined device and used for conveying compressed air to the combined device unit during ash removal so as to ensure the ash removal effect; the outlet valve outlet is connected with the SCR device inlet, and the SCR device outlet is communicated with the outside air.
Preferably, the method comprises the following steps: the throttle valve plate of the throttle valve is opened according to the differential pressure of the adjacent combined device units, and the opening rate is kept between 5 and 25 percent.
Preferably, the method comprises the following steps: and the inlet and the outlet of the particulate filter are respectively provided with a filter inlet valve and a filter outlet valve, and the filter inlet valve and the filter outlet valve are opened under the ash cleaning working condition, so that the incombustible particles cleaned by the compressed air are removed in the particulate filter.
Preferably, the method comprises the following steps: the outlet valve is located at the rear end of the compressed air valve.
The treatment method of the online regeneration offline ash removal ship tail gas treatment system comprises the following steps:
s1, under the normal operation condition, the tail gas passes through the combustible gas and particulate matter treatment combined device to remove combustible gas and particulate matter in the tail gas, then enters the SCR device after being sprayed with a reducing agent by the raw agent metering and spraying device to remove nitrogen oxides in the tail gas, and finally is discharged into the atmosphere;
s2, when the differential pressure of one combination device unit of the combustible gas and particulate matter processing combination device rises to a high value, opening a corresponding air throttle valve, and simultaneously starting an electric heater to regenerate the combustible gas and particulate matter processing combination device;
and S3, when the integral differential pressure of the combustible gas and particulate matter treatment combined device is maintained at a high level for a long time, closing the inlet valve and the outlet valve, opening the compressed air valve, introducing compressed air to clean the non-combustible particulate matter in the combustible gas and particulate matter treatment combined device, and collecting the non-combustible particulate matter in the particulate matter filter.
The invention has the beneficial effects that: the invention realizes the purposes of on-line regeneration and off-line ash removal through the combustible gas and particulate matter treatment combined device, the compressed air valve and the particulate matter filter, removes gaseous and solid pollutants in tail gas, and has low energy consumption and convenient regeneration.
Drawings
FIG. 1 is a schematic diagram of a process system and implementation of the present patent;
FIG. 2 is a schematic view of the throttle plate structure opening of the present patent;
FIG. 3 is a schematic view of the combined combustible gas and particulate matter treatment apparatus of this patent.
Description of reference numerals: 1-inlet valve, 2-air throttle, 21-air throttle valve plate, 3-combustible gas and particulate matter treatment combined device, 31-electric heater, 32-DOC catalyst, 33-DPF catalyst, 34-differential pressure transmitter, 35-temperature switch, 4-outlet valve, 5-reducing agent metering injection device, 6-SCR device, 7-compressed air valve, 8-filter inlet valve, 9-particulate matter filter and 10-filter outlet valve.
Detailed Description
The present invention will be further described with reference to the following examples. The following examples are set forth merely to aid in the understanding of the invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
As an embodiment, the patent provides an online regeneration offline ash removal ship tail gas treatment system, which comprises an inlet valve 1, a throttle valve 2, a combustible gas and particulate matter treatment combined device 3, an outlet valve 4, a reducing agent metering and injecting device 5, an SCR device 6, a compressed air valve 7, a filter inlet valve 8, a particulate matter filter 9, a filter outlet valve 10 and the like.
The combustible gas and particulate matter treatment combined device 3 is composed of a plurality of combined device units, each combined device unit is sequentially provided with an electric heater 31, a DOC catalyst 32 and a DPF catalyst 33 from bottom to top, a differential pressure transmitter 34 is arranged on the body of each combined device unit, and a temperature switch 35 is arranged at the outlet of each combined device unit. Under the normal operation working condition, after the tail gas comes out of the engine, the tail gas is uniformly introduced into the combustible gas and particulate matter treatment combination device 3 through the inlet valve 1, combustible gas and particulate matter in the flue gas are removed, then the tail gas enters the SCR device 6 after the reducing agent is injected through the reducing agent metering and injecting device 5, nitrogen oxide in the tail gas is removed, and finally the tail gas is discharged into the atmosphere.
A damper 2 is provided at the inlet of each combination unit. The throttle valve plate 21 is perforated according to the differential pressure of the adjacent combination unit, and the opening rate is kept at 5% -25%. When the differential pressure of one combination device unit of the combustible gas and particulate matter treatment combination device 3 rises to a high value, the corresponding air throttle 2 is inserted, so that a certain amount of tail gas enters the combination device unit, and meanwhile, the electric heater 31 is started, the temperature of the tail gas rises to 500-600 ℃, so that the combustible gas and particulate matter treatment combination device 3 is regenerated.
And a compressed air valve 7 is arranged on an outlet main pipe of the combustible gas and particle treatment combined device 3. The combustible gas and particulate matter treatment combined device 3 is provided with a particulate matter filter 9 in parallel, and the inlet and the outlet of the particulate matter filter 9 are respectively provided with a filter inlet valve 8 and a filter outlet valve 10. When the integral differential pressure of the combustible gas and particulate matter treatment combined device 3 is maintained at a high level for a long time, the inlet valve 1 and the outlet valve 4 are closed, the compressed air valve 7 is opened, the opening is carried out for 1-3 min, then the filter outlet valve 10 is quickly opened, so that the compressed air in the system is expanded and released instantly, and the compressed air is continuously input to clean the combustible gas and the non-combustible particulate matter in the particulate matter treatment combined device 3 and is collected in the particulate matter filter 9. Thereby realizing the purpose of cleaning ash.
The system can remove gaseous and solid pollutants in the tail gas, realizes coupling of online regeneration and offline ash removal, and is low in energy consumption and convenient to regenerate.
Claims (5)
1. The utility model provides an online regeneration off-line deashing boats and ships tail gas processing system which characterized in that: the device comprises an inlet valve (1), an air throttle (2), a combustible gas and particulate matter treatment combined device (3), an outlet valve (4), a reducing agent metering and injecting device (5), an SCR device (6), a compressed air valve (7) and a filter (9); an inlet valve (1) and an outlet valve (4) are respectively arranged on an inlet main pipe and an outlet main pipe of the combustible gas and particle treatment combined device (3); the combustible gas and particulate matter treatment combined device (3) consists of a plurality of combined device units, each combined device unit is sequentially provided with an electric heater (31), a DOC catalyst (32) and a DPF catalyst (33) from bottom to top, each combined device unit body is provided with a differential pressure transmitter (34), and an outlet of each combined device unit is provided with a temperature switch (35); an air throttle (2) is arranged at the inlet of each combined device unit; the combustible gas and particle treatment combined device (3) is provided with a particle filter (9) in parallel; a compressed air valve (7) is arranged on an outlet main pipe of the combustible gas and particle treatment combined device (3); the outlet of the outlet valve (4) is connected with the inlet of the SCR device (6), and the outlet of the SCR device (6) is communicated with the outside air.
2. The treatment method of the on-line regeneration off-line ash removal ship tail gas treatment system according to claim 1, characterized in that: the aperture ratio of the throttle valve plate (21) of the throttle valve (2) is 5-25%.
3. The treatment method of the on-line regeneration off-line ash removal ship tail gas treatment system according to claim 1, characterized in that: the inlet and the outlet of the particulate filter (9) are respectively provided with a filter inlet valve (8) and a filter outlet valve (10).
4. The treatment method of the on-line regeneration off-line ash removal ship tail gas treatment system according to claim 1, characterized in that: the outlet valve (4) is positioned at the rear end of the compressed air valve (7).
5. The treatment method of the on-line regeneration off-line ash removal ship tail gas treatment system according to claim 1, characterized by comprising the following steps:
s1, under the normal operation condition, the tail gas passes through the combustible gas and particulate matter treatment combined device (3) to remove combustible gas and particulate matter in the tail gas, then enters the SCR device (6) after being sprayed with a reducing agent by the original agent metering and spraying device (5), nitrogen oxide in the tail gas is removed, and finally the tail gas is discharged into the atmosphere;
s2, when the differential pressure of one combination device unit of the combustible gas and particulate matter processing combination device (3) rises to a high value, the corresponding air throttle valve (2) is opened, and the electric heater (31) is simultaneously opened, so that the combustible gas and particulate matter processing combination device (3) is regenerated;
And S3, when the integral differential pressure of the combustible gas and particle treatment combined device (3) is maintained at a high level for a long time, closing the inlet valve (1) and the outlet valve (4), opening the compressed air valve (7), introducing compressed air to clean the non-combustible particles in the combustible gas and particle treatment combined device (3), and collecting the non-combustible particles in the particle filter (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010689164.5A CN111852618A (en) | 2020-07-17 | 2020-07-17 | Online regeneration offline ash removal ship tail gas treatment system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010689164.5A CN111852618A (en) | 2020-07-17 | 2020-07-17 | Online regeneration offline ash removal ship tail gas treatment system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111852618A true CN111852618A (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010689164.5A Pending CN111852618A (en) | 2020-07-17 | 2020-07-17 | Online regeneration offline ash removal ship tail gas treatment system and method |
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| CN (1) | CN111852618A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487824A (en) * | 2022-08-18 | 2022-12-20 | 无锡双翼汽车环保科技有限公司 | Tail gas purification device of mining explosion-proof diesel engine |
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| US20130298771A1 (en) * | 2012-05-14 | 2013-11-14 | Daimler Ag | Method and Cleaning Device for Cleaning and Checking a Particle Filter |
| CN106194360A (en) * | 2016-08-26 | 2016-12-07 | 深圳市贝斯特净化设备有限公司 | A kind of can the device for purifying and treating tail gas of initiative regeneration and diesel vehicle |
| CN110291277A (en) * | 2017-02-21 | 2019-09-27 | 日本碍子株式会社 | The regeneration method of diesel engine exhaust ceramic filter, the processing method of diesel engine exhaust and diesel engine exhaust dust-precipitating system |
| CN110307069A (en) * | 2019-07-23 | 2019-10-08 | 凯龙高科技股份有限公司 | A kind of pulse cleaning grain catcher free of demolition |
| CN209976597U (en) * | 2019-05-30 | 2020-01-21 | 广船国际有限公司 | Ship tail gas emission reduction system |
| CN212389410U (en) * | 2020-07-17 | 2021-01-22 | 浙江天地环保科技股份有限公司 | On-line regeneration off-line deashing ship tail gas treatment system |
-
2020
- 2020-07-17 CN CN202010689164.5A patent/CN111852618A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130298771A1 (en) * | 2012-05-14 | 2013-11-14 | Daimler Ag | Method and Cleaning Device for Cleaning and Checking a Particle Filter |
| CN106194360A (en) * | 2016-08-26 | 2016-12-07 | 深圳市贝斯特净化设备有限公司 | A kind of can the device for purifying and treating tail gas of initiative regeneration and diesel vehicle |
| CN110291277A (en) * | 2017-02-21 | 2019-09-27 | 日本碍子株式会社 | The regeneration method of diesel engine exhaust ceramic filter, the processing method of diesel engine exhaust and diesel engine exhaust dust-precipitating system |
| CN209976597U (en) * | 2019-05-30 | 2020-01-21 | 广船国际有限公司 | Ship tail gas emission reduction system |
| CN110307069A (en) * | 2019-07-23 | 2019-10-08 | 凯龙高科技股份有限公司 | A kind of pulse cleaning grain catcher free of demolition |
| CN212389410U (en) * | 2020-07-17 | 2021-01-22 | 浙江天地环保科技股份有限公司 | On-line regeneration off-line deashing ship tail gas treatment system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115487824A (en) * | 2022-08-18 | 2022-12-20 | 无锡双翼汽车环保科技有限公司 | Tail gas purification device of mining explosion-proof diesel engine |
| CN115487824B (en) * | 2022-08-18 | 2023-10-13 | 无锡双翼汽车环保科技有限公司 | Tail gas purifying device of mining explosion-proof diesel engine |
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