Treatment device for smoke gas

Abstract

The utility model relates to a processing device for smoke gas, which comprises a smoke gas heat exchange mechanism and a reaction filtering mechanism, the smoke gas heat exchange mechanism is connected with the reaction filtering mechanism through a gas delivery pipe, the smoke gas heat exchange mechanism comprises a smoke gas processing bin body, a heat exchange assembly and a dust processing assembly, the dust treatment assembly and the heat exchange assembly are both arranged in the smoke gas treatment bin body; the flue gas treatment device provided by the utility model is provided with the flue gas heat exchange mechanism and the reaction filtering mechanism, so that the treatment pressure of the filtering reaction mechanism at the rear end can be effectively reduced, and meanwhile, the content of white smoke is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection equipment, in particular to a white smoke processing device for desulfurization and dust removal of smoke gas. Background Art

[0002] As we all know, in the current field of environmental protection technology, such as the technical field of industrial waste gas treatment, harmful gases such as flue gas and dust generated in industrial production processes are the top priority in waste gas treatment tasks. For example, in the existing desulfurization and dust removal process, the white smoke gas treatment method is also one of the important technologies. Specifically, when the white smoke gas just leaves the equipment, its temperature will be relatively high. Under the technical requirements of high efficiency, the temperature of the feed flue gas will be cooled by using heat exchange technology. At this time, when the flue gas temperature drops to a certain level, the energy required will be reduced, but the existing After the heat exchange equipment has been used for a period of time, because the heating area of ​​the manifold tube is large, and the dust and dirt on the manifold are also easily deposited on the manifold, therefore, in view of this phenomenon, a flue gas treatment device can be set up to clean the high-temperature flue gas containing a large amount of particulate matter discharged from the intermittent furnace and accumulated in the heat exchanger. At the same time, due to the action of the flue gas treatment device, the phenomenon of "white smoke" at the rear end chimney outlet can be effectively alleviated. In addition, the dust cleaning treatment of the manifold tube after long-term use can effectively reduce the processing pressure of the rear end filtering reaction mechanism. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a flue gas treatment device which can clean the heat exchange structure and effectively reduce the treatment pressure of the rear-end filtering reaction mechanism.

[0004] In order to achieve the purpose of the utility model, the utility model provides a device for treating flue gas, including a flue gas heat exchange mechanism and a reaction filtering mechanism, wherein the flue gas heat exchange mechanism is connected to the reaction filtering mechanism through a gas delivery pipe, the flue gas heat exchange mechanism includes a flue gas treatment bin body, a heat exchange component and a dust treatment component, the dust treatment component and the heat exchange component are both arranged in the flue gas treatment bin body, the dust treatment component is used to clean the heat exchange component and the inside of the flue gas treatment bin body, the reaction filtering mechanism includes a spray reaction component, and the spray reaction component is used to remove dust and then cool the flue gas that has passed through the flue gas treatment bin body.

[0005] Preferably, a gas circulation cavity is formed in the smoke gas processing chamber, one side of the gas circulation cavity is connected to the front intermittent furnace through a gas pipe, and the other side of the gas circulation cavity is connected to the reaction filtering mechanism through a connecting pipe.

[0006] Preferably, a first smoke flow port and a second smoke flow port are provided at the top of the gas circulation chamber. The first smoke flow port is connected to a first long-path gas delivery pipe for delivering the gas to an external chimney. The second smoke flow port is connected to a second long-path gas delivery pipe for returning and delivering the low-temperature gas that has passed through the reaction filtering mechanism.

[0007] Preferably, the rear side of the gas circulation cavity is connected to the reaction filtering mechanism through a gas delivery pipe, one end of the second long-path gas delivery pipe is connected to the second smoke flow port, and the other end is connected to the output end of the reaction filtering mechanism.

[0008] Preferably, the heat exchange assembly includes a manifold tube assembly, and the manifold tube assembly is provided in more than three groups, and each group of the manifold tube assemblies is arranged at intervals in the middle of the gas flow cavity.

[0009] Preferably, the dust handling component includes a flushing component and a silo wall vibration component, and the silo wall vibration component is provided with more than two groups, which are respectively arranged on the upper silo wall surface in the flue gas treatment silo body, and the flushing component includes a top flushing unit and a silo wall side flushing unit, and the top flushing unit includes more than three flushing circular pipes, and the silo wall side flushing unit includes a first silo wall side flushing unit and a second silo wall side flushing unit, and the first silo wall side flushing unit and the second silo wall side flushing unit are respectively arranged on the two side walls of the flue gas treatment silo body.

[0010] Preferably, the flushing direction of the top flushing unit is toward each group of branched tube assemblies, each of the flushing circular tubes is arranged at intervals on the top of the smoke gas treatment chamber, each flushing circular tube is a wide circular injection tube surface, and each flushing circular tube is provided with a plurality of injection ports arranged at intervals.

[0011] Preferably, the first bin wall side flushing unit comprises more than four flushing pipes, each flushing pipe is arranged at intervals, and the second bin wall side flushing unit comprises more than four flushing pipes, and the spraying direction of each flushing pipe is toward the branch pipe assembly.

[0012] Preferably, the reaction filtering mechanism also includes a filter assembly, the reaction filtering mechanism also includes a filter assembly, and also includes a first processing chamber and a second processing chamber, the first processing chamber is adjacent to the second processing chamber, the spray reaction assembly is arranged in the first processing chamber, the spray reaction assembly includes more than five spray pipes, each spray pipe is arranged at intervals, the filter assembly is arranged in the second processing chamber, and the rear end of the second processing chamber is connected to an induced draft fan, and the induced draft fan is used to draw the smoke gas passing through the second processing chamber toward the rear end of the second processing chamber.

[0013] Preferably, a filter mesh is provided between the first processing chamber and the second processing chamber, the filter assembly comprises an activated carbon filter layer, the activated carbon filter layer comprises a plurality of groups of activated carbon filter elements, and each of the activated carbon filter elements is arranged adjacent to each other.

[0014] The beneficial effects of the utility model are as follows: the utility model provides a flue gas processing device, which is provided with a flue gas heat exchange mechanism and a reaction filtering mechanism. The flue gas heat exchange mechanism is provided with a dust processing component. While the heat exchange component cools down the temperature of the feed flue gas, the dust processing component can effectively self-clean the heat exchange component and the inside of the flue gas processing bin. The filtering mechanism includes a spray reaction component. The spray reaction component is used to remove dust and then cool down the flue gas that has passed through the flue gas processing bin, which can effectively reduce the processing pressure of the rear-end filtering reaction mechanism and further reduce the content of white smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other purposes, features and advantages of the present invention will become more apparent through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals in all the accompanying drawings indicate the same parts, and the drawings are not intentionally scaled to the actual size, but the focus is on illustrating the subject matter of the present invention.

[0016] Figure 1 It is a schematic diagram of a preferred embodiment of the device for treating flue gas of the utility model;

[0017] Figure 2 It is a plan view of a smoke processing device of the utility model.

[0018] In the figure: 1. flue gas heat exchange mechanism; 10. flue gas treatment chamber; 2; reaction filtering mechanism; 21. first treatment chamber; 22. second treatment chamber; 23. filter mesh; 3. spray reaction assembly; 31. spray pipe; 4. gas delivery pipe; 5. connecting pipe; 6. first flue gas flow opening; 61. first long-path gas delivery pipe; 7. second flue gas flow opening; 71. second long-path gas delivery pipe; 8. filtering assembly; 9. induced draft fan; 11. heat exchange assembly; 12. flushing assembly; 121. top flushing unit; 122. first chamber wall side flushing unit; 123. second chamber wall side flushing unit; 13. chamber wall vibration assembly. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the relevant drawings.

[0020] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention pertains. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0022] like Figure 1-2 As shown, an embodiment of the utility model provides a device for treating flue gas, including a flue gas heat exchange mechanism 1 and a reaction filter mechanism 2, the flue gas heat exchange mechanism 1 and the reaction filter mechanism 2 are connected through a gas delivery pipe 4, the flue gas heat exchange mechanism 1 includes a flue gas treatment bin 10, a heat exchange component 11 and a dust treatment component, the dust treatment component and the heat exchange component 11 are both arranged in the flue gas treatment bin 10, the dust treatment component is used to clean the heat exchange component and the inside of the flue gas treatment bin, the inside of the flue gas treatment bin 10 passes through the flue gas material, and after a period of use, the dust or other impurities contained in the gas will remain in various places in the bin, and the dust treatment component arranged The dust treatment component can effectively treat and clean the dust accumulation remaining inside the bin or impurities contained in other gases. The reaction filtering mechanism 2 includes a spray reaction component 3, which is used to remove dust and then cool the flue gas that has passed through the flue gas treatment bin. After the spray reaction component 3 sprays the flue gas, the temperature of the flue gas will be greatly reduced. After passing through a certain flow path, that is, pipeline transmission, the flue gas temperature will be reduced to a lower level. At this time, when the preliminarily purified flue gas returns to the flue gas heat exchanger, it will fully exchange heat with the high-temperature turbid flue gas, the clean flue gas will be heated again, and the "white smoke" in the flue gas will be effectively controlled.

[0023] refer to Figure 1-2 As shown, in a further preferred embodiment, a gas circulation cavity is formed in the smoke gas processing chamber 10, one side of the gas circulation cavity is connected to the front intermittent furnace through a gas pipe, and the other side of the gas circulation cavity is connected to the reaction filtering mechanism through a connecting pipe 5. The smoke heat exchange mechanism in this embodiment is also a heat exchanger, which is connected behind the well-type intermittent furnace. The gas to be treated discharged from behind the intermittent furnace is first cooled by the smoke heat exchange mechanism. When the gas temperature drops to a certain level, the temperature change of the rear end spray water can be effectively controlled.

[0024] refer to Figure 1-2As shown, in a preferred embodiment, a first smoke flow port 6 and a second smoke flow port 7 are provided at the top of the gas circulation cavity. The first smoke flow port 6 is connected to a first long-path gas delivery pipe 61 to deliver the gas to an external chimney. Specifically, the high-temperature smoke gas of 320-350 degrees discharged from the intermittent furnace enters the smoke heat exchange mechanism and undergoes heat exchange to reduce the temperature of the smoke gas to about 130 degrees. At this time, the smoke gas of about 130 degrees at the top of the gas circulation cavity passes through the first smoke flow port 7 through the first long-path gas delivery pipe 61. In the process of transporting the smoke gas, it passes through a certain flow path. When entering the chimney, the temperature of the smoke gas drops to about 115 degrees. The first long-path gas delivery pipe 61 The end part is connected to the PLC temperature signal meter, which will output the flue gas temperature signal to the other end. The second flue gas flow port 7 is connected to the second long-path gas delivery pipe 71, which is used to return the low-temperature gas that has passed through the reaction filtering mechanism. The turbid smoke gas that has passed through the flue gas heat exchanger is transported from the side gas delivery pipe to the spray reaction component and the filter component equipped with an activated carbon box for impurity removal. After the flue gas passes through the spray, the temperature is greatly reduced. After a certain flow path, the flue gas temperature has been reduced to a lower level. At this time, when the clean smoke gas returns to the flue gas heat exchanger, it is fully heat exchanged with the high-temperature turbid smoke. The clean smoke gas is heated again, and the amount of white smoke in the smoke will be reduced.

[0025] refer to Figure 1-2 As shown, in a preferred embodiment, the rear side of the gas flow cavity is connected to the reaction filtering mechanism through a gas delivery pipe, one end of the second long-path gas delivery pipe 71 is connected to the second flue gas flow port 7, and the other end is connected to the output end of the reaction filtering mechanism, and one or more temperature meters are also provided at appropriate positions of the second long-path gas delivery pipe 71. The second long-path gas delivery pipe 71 returns the clean flue gas processed by the reaction filtering mechanism to the flue gas heat exchanger. After entering the flue gas heat exchanger, it is fully heat exchanged with the high-temperature turbid flue gas, and the clean flue gas is heated again.

[0026] refer to Figure 1-2 As shown, in a preferred embodiment, the heat exchange component 11 includes a manifold tube assembly, and there are more than three groups of manifold tube assemblies. Each group of manifold tube assemblies is arranged at intervals in the middle of the gas circulation cavity. The manifold tubes are arranged at a certain interval in the middle of the gas circulation cavity, and the heat exchange effect is good.

[0027] refer to Figure 1-2As shown, in a preferred embodiment, the dust treatment component includes a flushing component 12 and a bin wall vibration component 13. The bin wall vibration component 13 is provided with more than two groups, which are respectively arranged on the upper bin wall surface in the flue gas treatment bin body. The bin wall vibration component 13 is a group of more than two bin wall vibrators. The bin wall vibrators are already existing technologies and are not described in detail in this embodiment. The flushing component 12 includes a top flushing unit 121 and a bin wall side flushing unit. The top flushing unit 121 includes more than three flushing circular tubes. The bin wall vibrator is used to knock down dust on the fins. In addition, inside the heat exchanger, a stainless steel flushing circular tube is arranged at the top between two adjacent fins, and a nozzle is arranged on the circular tube to flush the fins on both sides of the circular tube. The dust remaining on the heat exchanger fins can be effectively removed, and the flushing water is discharged through the dark groove pipeline 14 at the bottom of the processing bin body. A guide groove 141 is provided in the middle of the dark groove pipeline 14, and a plurality of evenly distributed guide holes are provided on the groove surface of the guide groove 141. The provided guide groove and the plurality of evenly distributed guide holes are used to quickly discharge the flushing liquid. The bin wall side flushing unit includes a first bin wall side flushing unit 122 and a second bin wall side flushing unit 123. The first bin wall side flushing unit 122 and the second bin wall side flushing unit 123 are respectively arranged on the two side walls of the flue gas processing bin body. The provided bin wall side flushing unit flushes the sides of the fins to ensure that the dust on the fins is effectively cleaned.

[0028] refer to Figure 1-2 As shown, in a further preferred embodiment, the flushing direction of the top flushing unit 121 is toward each group of manifold tube assemblies, each flushing circular tube is arranged at intervals on the top of the flue gas treatment chamber, each flushing circular tube is a wide circular injection tube surface, and each flushing circular tube is provided with a plurality of injection ports arranged at intervals, and flushing surfaces are formed above and on the sides of the manifold tube assemblies to effectively clean dust and impurities on the manifold tube assemblies.

[0029] refer to Figure 1-2 As shown, in a further preferred embodiment, the first warehouse wall side flushing unit 122 includes more than four flushing pipes, each flushing pipe is arranged at intervals, and the second warehouse wall side flushing unit 123 includes more than four flushing pipes, and the spraying direction of each flushing pipe is toward the branch pipe assembly. The multiple flushing pipes can effectively flush the warehouse wall side.

[0030] refer to Figure 1-2As shown, in a further preferred embodiment, the reaction filtering mechanism 2 also includes a filtering component 8, and also includes a first processing chamber 21 and a second processing chamber 22. The first processing chamber 21 is adjacent to the second processing chamber 22. The spray reaction component 3 is arranged in the first processing chamber. The spray reaction component 3 includes more than five spray pipes 31, and each spray pipe 31 is arranged at intervals. If the flue gas contains ammonia, the spray liquid flowing in the spray pipe 31 can also be a chemical liquid used for catalytic reaction, such as a sulfuric acid liquid, which is used for chemical catalytic reaction to eliminate ammonia in the flue gas. The filtering component 8 is arranged in the second processing chamber 21, and the rear end of the second processing chamber 22 is connected to an induced draft fan 9. The induced draft fan 9 is used to draw the flue gas passing through the second processing chamber 22 toward the rear end of the second processing chamber 22. The induced draft fan 9 can speed up the circulation speed of the flue gas and improve the efficiency.

[0031] refer to Figure 1-2 As shown, in a further preferred embodiment, a filter mesh 23 is provided between the first processing chamber 21 and the second processing chamber 22, the filter assembly 8 includes an activated carbon filter layer, the activated carbon filter layer includes a plurality of groups of activated carbon filter elements, each activated carbon filter element is adjacently arranged, and the arranged activated carbon filter elements remove impurities from the flue gas after spraying and cooling, so that the flue gas is filtered to form clean flue gas.

[0032] The beneficial effects of the utility model are as follows: the utility model provides a flue gas processing device, which is provided with a flue gas heat exchange mechanism and a reaction filtering mechanism. The flue gas heat exchange mechanism is provided with a dust processing component. While the heat exchange component cools down the temperature of the feed flue gas, the dust processing component can effectively self-clean the heat exchange component and the inside of the flue gas processing bin. The filtering mechanism includes a spray reaction component. The spray reaction component is used to remove dust and then cool down the flue gas that has passed through the flue gas processing bin, which can effectively reduce the processing pressure of the rear-end filtering reaction mechanism and further reduce the content of white smoke.

[0033] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] In the description of this specification, the description with reference to the terms "preferred embodiment", "further embodiment", "other embodiments" or "specific example" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0035] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A flue gas treatment device, characterized in that: It includes a flue gas heat exchange mechanism and a reaction filtering mechanism, which are connected to the reaction filtering mechanism through a gas delivery pipe. The flue gas heat exchange mechanism includes a flue gas treatment chamber, a heat exchange component and a dust treatment component. The dust treatment component and the heat exchange component are both arranged in the flue gas treatment chamber. The dust treatment component is used to clean the heat exchange component and the inside of the flue gas treatment chamber. The reaction filtering mechanism includes a spray reaction component, which is used to remove dust and then cool the flue gas that has passed through the flue gas treatment chamber.

2. The device for treating flue gas according to claim 1, characterized in that: A gas circulation cavity is formed in the smoke gas processing chamber, one side of the gas circulation cavity is connected to the front intermittent furnace through a gas pipe, and the other side of the gas circulation cavity is connected to the reaction filtering mechanism through a connecting pipe.

3. The device for treating flue gas according to claim 2, characterized in that: The top of the gas circulation cavity is provided with a first smoke flow port and a second smoke flow port. The first smoke flow port is connected to a first long-path gas delivery pipe for delivering the gas to an external chimney. The second smoke flow port is connected to a second long-path gas delivery pipe for returning and delivering the low-temperature gas that has passed through the reaction filtering mechanism.

4. The device for treating flue gas according to claim 3, characterized in that: The rear side of the gas flow cavity is connected to the reaction filter mechanism through a gas delivery pipe. One end of the second long-path gas delivery pipe is connected to the second smoke flow port, and the other end is connected to the output end of the reaction filter mechanism.

5. The device for treating flue gas according to claim 1, characterized in that: The heat exchange assembly includes a manifold tube assembly, and the manifold tube assembly is provided with more than three groups, and each group of the manifold tube assembly is arranged at intervals in the middle position of the gas flow cavity.

6. The device for treating flue gas according to claim 1, characterized in that: The dust handling component includes a flushing component and a bin wall vibration component. The bin wall vibration component is provided with more than two groups, which are respectively arranged on the upper bin wall surface in the flue gas treatment bin body. The flushing component includes a top flushing unit and a bin wall side flushing unit. The top flushing unit includes more than three flushing circular pipes. The bin wall side flushing unit includes a first bin wall side flushing unit and a second bin wall side flushing unit. The first bin wall side flushing unit and the second bin wall side flushing unit are respectively arranged on the two side walls of the flue gas treatment bin body.

7. The device for treating flue gas according to claim 6, characterized in that: The flushing direction of the top flushing unit is toward each group of branched tube assemblies. Each of the flushing circular tubes is arranged at intervals on the top of the smoke and gas treatment chamber. Each flushing circular tube is a wide circular injection tube surface. Each flushing circular tube is provided with a plurality of injection ports arranged at intervals.

8. The device for treating flue gas according to claim 7, characterized in that: The first bin wall side flushing unit includes more than four flushing pipes, each flushing pipe is arranged at intervals, and the second bin wall side flushing unit includes more than four flushing pipes, and the spraying direction of each flushing pipe is toward the branch pipe assembly.

9. The device for treating flue gas according to claim 1, characterized in that: The reaction filtering mechanism also includes a filtering component, and also includes a first processing chamber and a second processing chamber. The first processing chamber is arranged adjacent to the second processing chamber. The spray reaction component is arranged in the first processing chamber. The spray reaction component includes more than five spray pipes, and each spray pipe is arranged at intervals. The filtering component is arranged in the second processing chamber. The rear end of the second processing chamber is connected to an induced draft fan, and the induced draft fan is used to suck the smoke gas passing through the second processing chamber toward the rear end of the second processing chamber.

10. The device for treating flue gas according to claim 9, characterized in that: A filter mesh is provided between the first processing chamber and the second processing chamber. The filter assembly includes an activated carbon filter layer. The activated carbon filter layer includes multiple groups of activated carbon filter elements. Each of the activated carbon filter elements is adjacent to each other.

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