CN218307209U - Gas absorption device for caramel color - Google Patents
Gas absorption device for caramel color Download PDFInfo
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- CN218307209U CN218307209U CN202222672604.3U CN202222672604U CN218307209U CN 218307209 U CN218307209 U CN 218307209U CN 202222672604 U CN202222672604 U CN 202222672604U CN 218307209 U CN218307209 U CN 218307209U
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Abstract
The utility model relates to the technical field of caramel color tail gas treatment equipment, in particular to a gas absorption device for caramel color; the method comprises the following steps: the absorption tower, absorption tower outer surface one side is provided with the air intake assembly who supplies the tail gas to get into, absorption tower outer surface opposite side is connected with the absorption liquid storage tank that is used for storing the absorption liquid through the pipeline, and absorption liquid storage tank right side is connected with the water pump through the pipeline to the water pump other end is connected with plate heat exchanger through the pipeline, plate heat exchanger left side is connected with the absorption tower through the pipeline. This a gaseous absorbing device for caramel color adopts the mass fraction to be 3-5% sodium hydroxide solution as the absorption liquid to sulfur dioxide in the effective absorption and the tail gas, and sodium hydroxide solution accessible absorption liquid storage tank and water pump carry out cyclic utilization, and the design of cooperation plate heat exchanger simultaneously, with inside the absorption liquid suction absorption tower after the cooling of recycling, not only can effectively protect the inside structure of absorption tower, further improved absorption efficiency simultaneously.
Description
Technical Field
The utility model relates to a caramel look tail gas treatment facility technical field especially relates to a gas absorption device for caramel look.
Background
The caramel is caramel, and is a food additive. In the production and manufacturing process of caramel color, especially the ammonium sulfite method and the ammonia method, various tail gases are generated, wherein the most important tail gases are sulfur dioxide gas, and the sulfur dioxide gas has serious pollution to the atmosphere. Therefore, the sulfur dioxide tail gas generated in the process of producing caramel color needs to be treated by using a gas absorption device.
Through retrieval, the 'sulfur dioxide absorption tower' disclosed by the patent number 'CN 202220725057.8' comprises an absorption tower, a water outlet penetrates through the lower part of one side of the absorption tower, a water pump is installed on the other side of the absorption tower, the output end of the water pump is connected with a water spray head through a water pipe, an absorption assembly is arranged in the middle of the inside of the absorption tower, an exhaust port is installed at the top of the absorption tower, an exhaust fan is installed above the inside of the absorption tower, and a backflow assembly is arranged between the exhaust port and the exhaust fan;
but the device is when using, and remaining absorption liquid passes through the outlet and directly arranges to the external world in the desulfurization process to cause the waste of a large amount of absorption liquid, then be not conform to current environmental protection theory, and the device adopts the mode of admitting air of orifice, because contain particulate matter impurity in the tail gas usually, thereby easily lead to the inside jam of orifice, influence the device's normal process of admitting air then.
The person skilled in the art therefore endeavors to develop a gas absorption device for caramel color.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a what aim at solving is that current device absorption liquid directly arranges to the external world and causes a large amount of wastes, and the technical problem of the easy jam of the mode of admitting air of orifice.
To achieve the above object, the present invention provides a gas absorption device for caramel color, comprising: the absorption tower, absorption tower outer surface one side is provided with the air intake component that supplies the tail gas to get into, absorption tower outer surface opposite side is through the pipe connection have the absorption liquid storage tank that is used for storing the absorption liquid, and absorption liquid storage tank right side is through the pipe connection have the water pump to the water pump other end is through the pipe connection have plate heat exchanger, the plate heat exchanger left side is through the pipe connection have the absorption tower.
Tail gas generated in the production and manufacturing process of caramel color enters the absorption tower through the air inlet assembly to be desulfurized and purified, absorption liquid stored in the absorption liquid storage tank is 3-5% of sodium hydroxide solution by mass fraction, the absorption liquid in the absorption liquid storage tank can be extracted into the plate type heat exchange tank through the design of the water pump, and the absorption liquid recycled is extracted into the absorption tower through the plate type heat exchanger after being cooled, so that the structure in the absorption tower can be effectively protected, the absorption efficiency is further improved, and the heat exchange temperature of the plate type heat exchanger is not more than 45 ℃.
The absorption tower is internally provided with a reticular plate, and the installation height of the reticular plate is higher than that of the air inlet assembly.
The design of reticular lamina can make tail gas pass through the even upflow of the mesh aperture that the reticular lamina surface was predetermine to make tail gas more dispersed.
The inner walls of the left side and the right side of the absorption tower are symmetrically provided with two flow blocking guide plates, the flow blocking guide plates are connected with the absorption tower in an inclined manner, and the installation heights of the flow blocking guide plates are higher than that of the reticular plates.
The two flow blocking guide plates arranged in an inclined manner can slow down the flow speed of the tail gas in the absorption tower, so that the contact time between the tail gas and the absorption liquid is prolonged, and the effect of absorbing and neutralizing the tail gas is improved.
The absorption tower is internally provided with a spraying assembly, the spraying assembly comprises a liquid channel and a spray head, the right end of the liquid channel is connected with the plate heat exchanger through a pipeline, and the spray head is arranged on the lower end face of the liquid channel at equal intervals.
The absorption liquid can enter the spray head through the liquid channel and is sprayed to the inside of the absorption tower through the spray head.
The absorption tower is characterized in that a packing layer is arranged inside the absorption tower, and three layers of packing layers are arranged inside the absorption tower at equal intervals from bottom to top.
The three packing layers are internally provided with a water absorption filling layer, a cotton-shaped iron oxide layer and a bamboo charcoal layer from bottom to top in sequence, and the water absorption filling layer, the cotton-shaped iron oxide layer and the bamboo charcoal layer play a role in dehydrating and purifying the gas after desulfurization.
Wherein, the inside whirl defogging layer that is provided with in absorption tower top, and absorption tower top end center department vertically installs the gas vent.
The cyclone defogging layer adopts the structure of two current layers of cyclone plate blades, and coarse particle fog drops can be detached to first layer blade in the design of two layers of blades, and fine particle fog drops can be detached to second layer blade.
The front surface of the absorption tower is preset with two observation hole sight glasses, and the upper end and the lower end of the front surface of the absorption tower are sequentially provided with two observation hole sight glasses.
The design of the observation hole sight glass is convenient for workers to observe the desulfurization process of the tail gas in the absorption tower.
Wherein, the subassembly that admits air includes intake pipe, connecting piece, preliminary treatment case and gas passage, and the horizontal parallel arrangement of intake pipe is at absorption tower left side surface to the intake pipe end is connected with the preliminary treatment case through the connecting piece, and simultaneously preliminary treatment case left side surface center department transversely installs gas passage.
The flange has been preset at the gas passage end, makes things convenient for gas passage to be connected with external tail gas pipeline, and secondly, the inside active carbon board that is provided with of preliminary treatment incasement portion can adsorb particulate matter impurity in the tail gas, and the tail gas that preliminary treatment was accomplished enters into absorption tower through the intake pipe and inside carries out further processing.
The utility model has the advantages that:
1. the utility model discloses when using, adopt the sodium hydroxide solution that the mass fraction is 3-5% as the absorption liquid to effectively absorb the sulfur dioxide in the neutralization tail gas, and sodium hydroxide solution accessible absorption liquid storage tank and water pump recycle, avoided the absorption liquid directly to arrange to the external world, embodied the environmental protection nature of the device, cooperate the design of plate heat exchanger simultaneously, the absorption liquid of will recycling is sucked inside the absorption tower after cooling down, not only can effectively protect the structure inside the absorption tower, further improved absorption efficiency simultaneously;
2. the utility model discloses when using, filter the absorption through the particulate matter impurity of the preliminary treatment case in the subassembly that admits air in to tail gas, avoid particulate matter impurity along with gaseous together get into the absorption tower inside to cause the jam to the absorption tower inside, and what the preliminary treatment case designed is demountable installation's structure to make things convenient for the staff regularly to change and maintain the preliminary treatment case.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic overall front cross-sectional structural view of an embodiment of the present invention;
FIG. 2 is a schematic view of the interior of an absorption tower according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of the air inlet assembly according to the embodiment of the present invention.
Name of part
1. An absorption tower; 2. an air intake assembly; 201. an air inlet pipe; 202. a connecting member; 203. a pretreatment tank; 204. a gas channel; 3. a mesh plate; 4. a choked flow deflector; 5. a liquid channel; 6. a spray head; 7. a filler layer; 8. a cyclone defogging layer; 9. an exhaust port; 10. an absorption liquid storage tank; 11. a water pump; 12. a plate heat exchanger; 13. and (4) observing the hole sight glass.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1 to 3, the present invention provides a gas absorption device for caramel color, comprising: the absorption tower comprises an absorption tower 1, wherein an air inlet assembly 2 for tail gas to enter is arranged on one side of the outer surface of the absorption tower 1, the other side of the outer surface of the absorption tower 1 is connected with an absorption liquid storage tank 10 for storing absorption liquid through a pipeline, a water pump 11 is connected to the right side of the absorption liquid storage tank 10 through a pipeline, the other end of the water pump 11 is connected with a plate heat exchanger 12 through a pipeline, and the left side of the plate heat exchanger 12 is connected with the absorption tower 1 through a pipeline;
in this embodiment, firstly, the tail gas that produces in the production manufacturing process of caramel color enters into inside the absorption tower 1 through the subassembly 2 that admits air, secondly, electrify water pump 11, the sodium hydroxide solution with inside storage of absorption liquid storage tank 10 is extracted to inside the absorption tower 1 through plate heat exchanger 12, make tail gas and sodium hydroxide absorption liquid carry out the two-phase abundant contact absorption neutralization reaction of gas-liquid, thereby carry out the desulfurization process to tail gas, finally, in the desulfurization process, the remaining sodium hydroxide solution accessible pipeline of absorption tower 1 bottom enters into inside absorption liquid storage tank 10, carry out the recycle to the sodium hydroxide solution, cooperate plate heat exchanger 12's design simultaneously, make the recycle absorption liquid pump after the cooling inside absorption tower 1, not only can effectively protect the inside structure of absorption tower 1, absorption efficiency has further been improved simultaneously.
Further, a reticular plate 3 is arranged in the absorption tower 1, and the installation height of the reticular plate 3 is higher than that of the air inlet component 2;
in this embodiment, when entering the absorption tower 1 through the air inlet assembly 2, the exhaust gas to be treated can uniformly flow upwards through the mesh plate 3, so that the exhaust gas is more dispersed.
Furthermore, two choke flow guide plates 4 are symmetrically arranged on the inner walls of the left side and the right side of the absorption tower 1, the choke flow guide plates 4 are connected with the absorption tower 1 in an inclined manner, and the installation height of the choke flow guide plates 4 is higher than that of the reticular plates 3;
in the present embodiment, the design of the choked flow guide plate 4 can slow down the upward flowing speed of the exhaust gas, so as to improve the contact time between the exhaust gas and the absorption liquid, and further improve the effect of absorbing and neutralizing the exhaust gas.
Further, a spraying assembly is arranged in the absorption tower 1, the spraying assembly comprises a liquid channel 5 and spray heads 6, the right end of the liquid channel 5 is connected with the plate heat exchanger 12 through a pipeline, and the spray heads 6 are arranged on the lower end face of the liquid channel 5 at equal intervals;
in the embodiment, the sodium hydroxide solution enters the liquid channel 5 through the plate heat exchanger 12, and is finally uniformly sprayed to the interior of the absorption tower 1 through the spray head 6 to absorb sulfur dioxide in the neutralized tail gas.
Further, a packing layer 7 is arranged inside the absorption tower 1, the packing layer 7 is provided with three layers from bottom to top at equal intervals inside the absorption tower 1, a rotational flow defogging layer 8 is arranged inside the top end of the absorption tower 1, an exhaust port 9 is vertically arranged at the center of the top end of the absorption tower 1, an observation hole sight glass 13 is preset on the front surface of the absorption tower 1, and two observation hole sight glasses 13 are sequentially arranged at the upper end and the lower end of the front surface of the absorption tower 1;
in the embodiment, the gas neutralized by absorption continuously flows upwards along the inside of the absorption tower 1, and is discharged into the outside atmosphere from the exhaust port 9 after being dehydrated, filtered and demisted by the filler layer 7 and the rotational flow demisting layer 8, and in the treatment process of the tail gas, the design of the observation hole sight glass 13 is convenient for a worker to observe the desulfurization process of the tail gas in the absorption tower 1.
Further, the air inlet assembly 2 comprises an air inlet pipe 201, a connecting piece 202, a pretreatment tank 203 and an air channel 204, the air inlet pipe 201 is transversely arranged on the outer surface of the left side of the absorption tower 1 in parallel, the tail end of the air inlet pipe 201 is connected with the pretreatment tank 203 through the connecting piece 202, and the air channel 204 is transversely arranged at the center of the outer surface of the left side of the pretreatment tank 203;
in this embodiment, in the air intake process, at first, be connected gas channel 204 with external tail gas pipeline, secondly, tail gas enters into inside pretreatment box 203 through gas channel 204, particulate matter impurity in to tail gas filters the absorption through pretreatment box 203, tail gas that the preliminary treatment was accomplished enters into inside absorption tower 1 through intake pipe 201, when not using needs to change pretreatment box 203 and maintain, at first, with gas channel 204 and external tail gas pipeline separation, secondly, through connecting piece 202 with intake pipe 201 and pretreatment box 203 separation, thereby the person of facilitating the use changes and maintains pretreatment box 203, the holistic practicality of the device has been increased.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (8)
1. A gas absorption apparatus for caramel color comprising: absorption tower (1), its characterized in that, absorption tower (1) surface one side is provided with air intake assembly (2) that supply tail gas to get into, absorption tower (1) surface opposite side has absorption liquid storage tank (10) that are used for storing the absorption liquid through the pipe connection, and absorption liquid storage tank (10) right side has water pump (11) through the pipe connection to the water pump (11) other end has plate heat exchanger (12) through the pipe connection, plate heat exchanger (12) left side has absorption tower (1) through the pipe connection.
2. The gas absorption device for caramel color according to claim 1, wherein the absorption tower (1) is internally provided with the mesh plate (3), and the installation height of the mesh plate (3) is higher than that of the gas inlet assembly (2).
3. The gas absorption device for caramel color according to claim 1, wherein two flow-resisting guide plates (4) are symmetrically arranged on the inner walls of the left side and the right side of the absorption tower (1), the flow-resisting guide plates (4) are connected with the absorption tower (1) in an inclined manner, and the installation height of the flow-resisting guide plates (4) is higher than that of the reticular plates (3).
4. The gas absorption device for caramel color according to claim 1, wherein a spray assembly is installed inside the absorption tower (1), the spray assembly comprises a liquid channel (5) and spray heads (6), the right end of the liquid channel (5) is connected with the plate heat exchanger (12) through a pipeline, and the spray heads (6) are installed on the lower end face of the liquid channel (5) at equal intervals.
5. The gas absorption device for caramel color according to claim 1, wherein a packing layer (7) is arranged inside the absorption tower (1), and the packing layer (7) is provided with three layers at equal intervals from bottom to top inside the absorption tower (1).
6. The gas absorption device for caramel color according to claim 1, wherein a cyclone defogging layer (8) is arranged inside the top end of the absorption tower (1), and an exhaust port (9) is vertically arranged at the center of the top end of the absorption tower (1).
7. The gas absorption device for caramel color according to claim 1, wherein the front surface of the absorption tower (1) is preset with two observation holed mirrors (13), and the two observation holed mirrors (13) are sequentially arranged at the upper and lower ends of the front surface of the absorption tower (1).
8. The gas absorption device for caramel color as claimed in claim 1, wherein the gas inlet assembly (2) comprises a gas inlet pipe (201), a connecting member (202), a pretreatment tank (203) and a gas passage (204), the gas inlet pipe (201) is transversely arranged in parallel on the outer surface of the left side of the absorption tower (1), the end of the gas inlet pipe (201) is connected with the pretreatment tank (203) through the connecting member (202), and the gas passage (204) is transversely arranged at the center of the outer surface of the left side of the pretreatment tank (203).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222672604.3U CN218307209U (en) | 2022-10-11 | 2022-10-11 | Gas absorption device for caramel color |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222672604.3U CN218307209U (en) | 2022-10-11 | 2022-10-11 | Gas absorption device for caramel color |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218307209U true CN218307209U (en) | 2023-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222672604.3U Active CN218307209U (en) | 2022-10-11 | 2022-10-11 | Gas absorption device for caramel color |
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|---|---|
| CN (1) | CN218307209U (en) |
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2022
- 2022-10-11 CN CN202222672604.3U patent/CN218307209U/en active Active
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