CN222658213U - A wet dust removal device for combined alkali production, calcination and transportation of alkali - Google Patents
A wet dust removal device for combined alkali production, calcination and transportation of alkali Download PDFInfo
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- CN222658213U CN222658213U CN202421335463.9U CN202421335463U CN222658213U CN 222658213 U CN222658213 U CN 222658213U CN 202421335463 U CN202421335463 U CN 202421335463U CN 222658213 U CN222658213 U CN 222658213U
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Abstract
The utility model relates to the technical field of gas dust removal, in particular to a combined alkali-making calcined caustic soda transporting wet dust collector which reduces the contact of alkali dust at an air inlet pipe orifice and washing liquid, prevents the alkali dust from forming scars at the air inlet pipe orifice to cause blockage, ensures the unobstructed state of an air inlet pipe, is convenient to use and high in practicability, comprises a washing tower, wherein a circular straight cylinder, an upper end enclosure and a lower end enclosure are arranged in the washing tower, and further comprises an air inlet pipe, an air outlet pipe, a liquid inlet pipe, a liquid outlet pipe and a water distribution device, wherein the air inlet pipe is arranged at the upper end of the washing tower, the lower end of the air inlet pipe is communicated with the upper part of the circular straight cylinder of the washing tower, the liquid inlet pipe is fixedly arranged at the upper part of the circular straight cylinder of the washing tower, the output end of the liquid distribution device is connected with the water distribution device, the water distribution device has the functions of water distribution and scars prevention, the air outlet pipe and the liquid outlet pipe are both arranged at the lower part of the washing tower, the input ends of the air outlet pipe and the liquid outlet pipe are both communicated with the circular straight cylinder of the washing tower, and the height of the liquid outlet pipe is lower than the height of the air outlet pipe.
Description
Technical Field
The utility model relates to the technical field of gas dust removal, in particular to a wet-type dust removal device for combined alkali-making calcined caustic soda transportation.
Background
In the calcination production process of the combined alkali preparation method, wet heavy alkali (NaHCO 3) can be decomposed to generate sodium carbonate (Na 2CO 3) and water vapor after being heated by a calciner. Because the moisture content in the wet heavy alkali is higher, and the decomposition of the heavy alkali in the heating process can generate moisture, part of the water vapor can be led out to the outside by the furnace gas system, and the rest of the water vapor can enter the alkali transportation system together with high-temperature materials. Because some alkali dust can be generated in the alkali transportation process, and condensed water can be scarred with the alkali dust due to cooling in the alkali transportation process, the normal operation of an alkali transportation system is affected, and therefore, the air inducing and dust removing system is required to remove the alkali dust and water vapor in the alkali transportation system.
The induced air dust removing system in the prior art generally comprises an induced draft fan, a washing tower and a pipeline, wherein a countercurrent washing mode is generally adopted, an air inlet pipe is arranged at the lower part of the washing tower, an air inlet pipe and a spraying device are arranged at the upper part of the washing tower, the air inlet pipe of the washing tower is connected with an alkali transportation system, when the induced draft fan is used, the inside of the washing tower is enabled to be negative pressure, then alkali dust and water vapor in the alkali transportation system enter the washing tower through the air inlet pipe, meanwhile, washing liquid is sprayed into the washing tower through the air inlet pipe spraying device at the upper part of the washing tower, the washing liquid is enabled to be contacted with the alkali dust in the descending process, the washing liquid absorbs the dust, meanwhile, heat exchange is carried out on the washing liquid and the water vapor, liquid water is cooled to form liquid water which falls into the washing tower, and then the washed gas is discharged to the outside through the induced draft fan.
Disclosure of utility model
In order to solve the technical problems, the utility model provides the combined alkali-making calcined caustic soda transporting wet dust collector which is used for preventing alkali dust from contacting with washing liquid at an air inlet pipe orifice, thereby preventing the alkali dust from forming scars in an air inlet pipe to cause blockage, ensuring the unobstructed state of the air inlet pipe, and having convenient use and high practicability.
The utility model relates to a wet dust collector for combined alkali-making calcined caustic soda transportation, which comprises a washing tower, wherein the washing tower comprises a circular straight cylinder, an upper sealing head and a lower sealing head, the upper sealing head and the lower sealing head are respectively arranged at the upper part and the lower part of the circular straight cylinder, and a cavity is arranged in the circular straight cylinder; the washing tower is characterized by further comprising an air inlet pipe, an air outlet pipe, a liquid discharge pipe, a liquid inlet pipe and a water distribution device, wherein the air inlet pipe is arranged on the upper seal head of the washing tower, the lower end of the air inlet pipe is communicated with the upper part of the circular straight cylinder of the washing tower, the liquid inlet pipe is fixedly arranged at the upper end of the circular straight cylinder, the output end of the liquid inlet pipe is connected with the water distribution device, the water distribution device is arranged on the upper part of the circular straight cylinder, the water distribution device has water distribution and anti-blocking functions, the water distribution device is arranged below the air inlet pipe, the air outlet pipe is arranged on the lower part of the circular straight cylinder, the liquid discharge pipe is arranged on the lower part of the lower seal head of the washing tower, the air outlet pipe and the input end of the liquid discharge pipe are communicated with the cavity of the circular straight cylinder, and the height of the liquid discharge pipe is lower than that of the air outlet pipe. When the washing tower is operated, the induced draft fan is opened, so that the interior of the circular straight cylinder of the washing tower is in a negative pressure state, air containing alkali dust and water vapor in the alkali transportation system is further led into the circular straight cylinder of the washing tower through the air inlet pipe, then the circulating pump is opened, washing liquid is led into the water distribution device through the liquid inlet pipe, then the washing liquid uniformly overflows downwards at the upper part of the circular straight cylinder of the washing tower through the water distribution device, meanwhile, the washing liquid is contacted with the alkali dust and the water vapor in the descending process, the washing liquid adsorbs the alkali dust, meanwhile, the washing liquid cools and cools the water vapor, then the washing liquid falls to the lower part of the circular straight cylinder of the washing tower, is discharged and collected through the liquid discharge pipe, and the clean gas after washing is discharged through the air outlet pipe.
Preferably, the water distribution device comprises a groove type water distributor, a water distribution main pipe and a plurality of groups of water distribution branch pipes. The device comprises a tank type water distributor, a washing tower, a water inlet pipe, a water distribution main pipe, a plurality of groups of water distribution branch pipes, a plurality of groups of water distribution holes, a plurality of groups of water distribution branch pipes and a plurality of groups of water distribution holes, wherein the tank type water distributor is fixedly arranged in a circular straight cylinder of the washing tower; after the washing liquid enters the main water distribution pipe through the liquid inlet pipe, the washing liquid enters a plurality of groups of branch water distribution pipes through the main water distribution pipe, and then the washing liquid is discharged into the main water distribution grooves and branch water distribution grooves through the main water distribution pipe and the drain holes on the plurality of groups of branch water distribution pipes respectively, and the washing liquid overflows into the straight cylinder of the washing tower uniformly through the main water distribution grooves and the branch water distribution grooves on the groove type water distributor, so that the washing liquid uniformly washes and descends in the straight cylinder of the washing tower, the contact area of the washing liquid and gas in the straight cylinder of the washing tower is improved, and the washing effect is ensured.
Preferably, the washing tower further comprises a spray filler, wherein the spray filler is fixedly arranged in the middle of the circular straight cylinder of the washing tower, and the spray filler is positioned below the water distribution device. Through the arrangement, a water film can be formed on the spray filler after the washing liquid falls on the spray filler, so that the washing contact area of the washing liquid and the gas in the circular straight cylinder is increased, the washing effect on the gas in the circular straight cylinder of the washing tower is improved, and meanwhile, the gas generated by the spray filler is baffled, so that the washing efficiency on alkali dust can be improved.
Preferably, the height of the groove-type water distributor is 100-150mm, and 120mm is preferable.
Preferably, the spraying filler is a pall ring made of stainless steel, and the height is 480-520mm.
Preferably, the distance between the groove type water distributor and the spray filler is more than or equal to 200mm.
The washing device comprises a washing tower, a circular tube, a liquid inlet pipe, a circulating pump, a washing liquid inlet pipe, a washing tower and a washing tower, wherein the washing tower is characterized in that the washing tower is provided with a circular tube, the circular tube is fixedly arranged at the top of the circular tube, a plurality of groups of drain holes are formed in the lower part of the circular tube, the plurality of groups of drain holes are uniformly distributed in the lower part of the circular tube, two groups of output ends of the liquid inlet pipe are respectively communicated with the circular tube and the main water distribution pipe, the washing liquid enters the circular tube and the groove type water distributor respectively through the two groups of output ends of the liquid inlet pipe, the washing liquid entering the circular tube is discharged through the plurality of groups of drain holes in the lower end of the circular tube and uniformly sprayed on the inner side wall of the washing tower, then the washing liquid flows up and down through the inner side wall of the washing tower, alkali is prevented from scarring on the inner side wall of the washing tower through the washing liquid, and the washing tower is convenient to use and high in practicability.
Compared with the prior art, the utility model has the beneficial effects that:
1. The wet dust collector is set in the same-direction washing mode, compared with the reverse washing mode, the alkali dust is prevented from forming scars at the inlet pipe orifice to cause blockage, the unobstructed state of the inlet pipe is ensured, the use is convenient, and the practicability is high.
2. The water distribution device can prevent blocking, a groove type water distributor is arranged, the washing is carried out in an overflow mode, the air flow containing alkali dust enters from the upper part of overflow water, the dry-wet junction point is arranged above the water surface, the dry-wet junction crystallization boundary region can be eliminated, and no fulcrum can form alkali scars.
Drawings
FIG. 1 is a schematic cross-sectional view of the present utility model;
FIG. 2 is a schematic top view of the water distribution device;
FIG. 3 is a schematic view of the bottom construction of the annular tube;
FIG. 4 is a schematic diagram of an axial structure of the water distribution device;
Fig. 5 is a schematic structural view of a main water distribution pipe and a branch water distribution pipe.
The reference numerals of the drawing are 1, a washing tower, 2, an air inlet pipe, 3, an air outlet pipe, 4, a liquid discharge pipe, 5, a liquid inlet pipe, 6, a groove type water distributor, 7, a main water distribution pipe, 8, a branch water distribution pipe, 9, an annular pipe, 10, a spray filler, 11 and a liquid baffle.
Detailed Description
In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. This utility model may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Examples
As shown in fig. 1 to 5, the combined alkali-making calcined caustic soda transporting wet dust collector comprises a washing tower 1, wherein the washing tower 1 comprises a circular straight cylinder, an upper sealing head and a lower sealing head, the upper sealing head and the lower sealing head are respectively arranged at the upper part and the lower part of the circular straight cylinder, and a cavity is arranged in the circular straight cylinder; the washing tower is characterized by further comprising an air inlet pipe 2, an air outlet pipe 3, a liquid discharge pipe 4, a liquid inlet pipe 5 and a water distribution device, wherein the air inlet pipe 2 is arranged on an upper seal head of the washing tower 1, the lower end of the air inlet pipe 2 is communicated with the upper part of a circular straight cylinder of the washing tower 1, the liquid inlet pipe 5 is fixedly arranged at the upper end of the circular straight cylinder, the output end of the liquid inlet pipe 5 is connected with the water distribution device, the water distribution device is arranged on the upper part of the circular straight cylinder and has the functions of water distribution and anti-blocking, the water distribution device is positioned below the air inlet pipe 2, the air outlet pipe 3 is arranged on the lower part of the circular straight cylinder, the liquid discharge pipe 4 is arranged on the lower seal head of the washing tower 1, the air outlet pipe 3 and the input end of the liquid discharge pipe 4 are both communicated with a cavity of the circular straight cylinder, and the height of the liquid discharge pipe is lower than that of the air outlet pipe; when in operation, the induced draft fan is opened to enable the inside of the circular cylinder of the washing tower 1 to be in a negative pressure state, so that gas containing alkali dust and water vapor in an alkali transportation system enters the circular cylinder of the washing tower 1 through the air inlet pipe 3, then the circulating pump is opened to enable washing liquid to enter the water distribution device through the liquid inlet pipe 5, then the washing liquid uniformly overflows downwards at the upper part of the circular cylinder of the washing tower 1 through the water distribution device, the washing liquid contacts with the alkali dust and the water vapor in the descending process, the washing liquid adsorbs the alkali dust, meanwhile, the washing liquid cools and cools the water vapor, then the washing liquid falls to the lower part of the circular cylinder of the washing tower 1 and is discharged and collected through the liquid discharge pipe 4, and the clean gas after washing is discharged through the air outlet pipe 3, as the air inlet pipe 2 is arranged at the topmost end of the washing tower 1, and the height of the air inlet pipe 2 is higher than that of the water distribution device in the washing tower 1, so that the air containing alkali dust can not contact with washing liquid near the air inlet pipe 2, thereby preventing the alkali dust from forming scars at the pipe orifice of the air inlet pipe 2 to cause blockage, ensuring the unobstructed state of the air inlet pipe 2, and having convenient use and high practicability.
As shown in figure 1, the washing tower 1 consists of an upper sealing head, a lower sealing head and a circular straight cylinder in the middle, wherein the upper sealing head and the lower sealing head are respectively fixedly welded and arranged at the upper end and the lower end of the straight cylinder, an air inlet pipe is arranged at the top end of the upper sealing head of the washing tower 1, a liquid discharge pipe 4 is arranged at the bottom end of the lower sealing head of the washing tower 1, a water distribution device and a filler are arranged in the circular straight cylinder, and a liquid inlet and an air outlet are respectively arranged at the upper end and the lower end of the circular straight cylinder.
As shown in fig. 2, 3 and 5, the water distribution device comprises a groove type water distributor 6, a water distribution main pipe 7 and a plurality of groups of water distribution branch pipes 8, wherein the groove type water distributor 6 is fixedly arranged in a circular straight cylinder of the washing tower 1, the middle part of the groove type water distributor 6 is provided with a water distribution main groove, two sides of the groove type water distributor 6 are provided with a plurality of groups of water distribution branch grooves communicated with the water distribution main groove, the water distribution main pipe 7 is fixedly arranged on the groove type water distributor 6, the water distribution main pipe 7 is positioned in the water distribution main groove, the input end of the water distribution main pipe 7 is communicated with the liquid inlet pipe 5, the plurality of groups of water distribution branch pipes 8 are communicated with the water distribution main pipe 7, the plurality of groups of water distribution branch pipes 8 are respectively positioned in the plurality of groups of water distribution branch grooves, the left side and the right side of the water distribution main pipe 7 are provided with a plurality of groups of water drainage holes, and the left side and right side of the plurality of groups of water distribution branch pipes 8 are respectively provided with a plurality of water drainage holes; after the washing liquid enters the main water distribution pipe 7 through the liquid inlet pipe 5, the washing liquid enters the multiple groups of branch water distribution pipes 8 through the main water distribution pipe 7, and then the washing liquid is discharged into the main water distribution grooves and branch water distribution grooves through the water discharge holes on the main water distribution pipe 7 and the multiple groups of branch water distribution pipes 8 respectively, and after the washing liquid in the main water distribution grooves and the branch water distribution grooves is full, the washing liquid overflows into the circular cylinder of the washing tower 1 uniformly through the main water distribution grooves and the branch water distribution grooves on the groove type water distributor 6, so that the washing liquid can descend uniformly in the circular cylinder of the washing tower 1, the contact area between the washing liquid and the gas in the circular cylinder of the washing tower 1 is improved, and the washing effect is ensured.
As shown in fig. 1 and 3, the annular pipe 9 is fixedly arranged at the upper part of the circular cylinder of the washing tower 1, a plurality of groups of drain holes are arranged at the lower part of the annular pipe 9, the plurality of groups of drain holes are uniformly distributed at the lower part of the annular pipe 9, two groups of output ends are arranged on the liquid inlet pipe 5, the two groups of output ends of the liquid inlet pipe 5 are respectively communicated with the annular pipe 9 and the main water distribution pipe 7, the circulating pump is turned on, washing liquid enters the annular pipe 9 and the groove type water distributor 6 respectively through the two groups of output ends on the liquid inlet pipe 5, the washing liquid entering the annular pipe 9 is uniformly sprayed on the inner side wall of the washing tower 1 after being discharged through the plurality of groups of drain holes at the lower end of the annular pipe 9, then the washing liquid flows up and down through the inner side wall of the washing tower 1, the inner side wall of the washing tower 1 is washed by the washing liquid, the inner side wall of the washing tower 1 is prevented from being scarred, and the washing liquid is convenient to use and high in practicability.
Through the arrangement, the washing liquid can form a water film on the spraying filler 10 after falling onto the spraying filler 10, the contact area of the washing liquid and the gas in the circular straight cylinder is improved, the washing effect on the gas in the circular straight cylinder of the washing tower 1 is improved, and meanwhile, the gas baffling effect generated by the spraying filler 10 can improve the washing efficiency on alkali dust.
Wherein, the spray packing 10 can be a pall ring made of stainless steel, the height is 480-520mm, and the specification is 100mm.
The distance between the groove type water distributor 6 and the spray packing 10 is more than or equal to 200mm.
As shown in figure 2, the water distribution device of the wet dust collector consists of a water distribution tank and a water distribution pipe. The water distribution tank consists of a main tank and two symmetrical water distribution branch tanks at two ends, the water distribution pipe consists of a main pipe and two symmetrical distribution branch pipes at two ends, and the distribution pipe is arranged in the water distribution tank. The water distribution branch pipes are uniformly connected with the water distribution main pipe, and open holes are formed in the left side and the right side of the main branch pipe, so that uniform water flow distribution in the water distribution groove is ensured. The main groove and the branch groove of the water distribution groove are consistent in height and horizontally installed so as to ensure that spray water overflows uniformly from the top of the water tank. When the device is operated, the air flow containing alkali dust enters from the upper part of the overflow water, the dry-wet junction point is arranged above the water surface, the dry-wet junction crystallization boundary area can be eliminated, no fulcrum point can form alkali scars, and meanwhile, the overflow water body is completely covered by the overflow water, so that the air flow can be effectively dispersed evenly and enters into the washing area at the lower part.
The height of the groove type water distributor 6 is 100-150mm, preferably 120 mm.
As shown in figure 1, the liquid baffle 11 is obliquely and fixedly arranged on the inner side wall of the washing tower 1, the liquid baffle 11 is positioned above the air outlet pipe 3, and the washing liquid falling into the air outlet pipe 3 in the circular straight cylinder of the washing tower 1 is reduced by shielding of the liquid baffle 11, so that the washing liquid is reduced from entering the air outlet pipe.
The spray packing 10 of the combined alkali-making and calcined alkali-transporting wet dust collector is purchased in the market, and is only required to be installed and operated according to the attached use instruction by a person skilled in the art without the creative labor of the person skilled in the art.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (8)
1. The wet dust collector comprises a washing tower (1), wherein the washing tower (1) comprises a circular straight cylinder, an upper sealing head and a lower sealing head, the upper sealing head and the lower sealing head are respectively arranged at the upper part and the lower part of the circular straight cylinder, and a cavity is arranged in the circular straight cylinder; the washing tower is characterized by further comprising an air inlet pipe (2), an air outlet pipe (3), a liquid discharge pipe (4), a liquid inlet pipe (5) and a water distribution device, wherein the air inlet pipe (2) is arranged on the upper seal head of the washing tower (1), the lower end of the air inlet pipe (2) is communicated with the upper part of the circular cylinder of the washing tower (1), the liquid inlet pipe (5) is fixedly arranged at the upper end of the circular cylinder, the output end of the liquid inlet pipe (5) is connected with the water distribution device, the water distribution device is arranged on the upper part of the circular cylinder, the water distribution device has water distribution and anti-blocking functions, the water distribution device is arranged below the air inlet pipe (2), the air outlet pipe (3) is arranged on the lower part of the circular cylinder, the liquid discharge pipe (4) is arranged on the lower seal head of the washing tower (1), and the input ends of the air outlet pipe (3) and the liquid discharge pipe (4) are communicated with the cavity of the circular cylinder, and the height of the liquid discharge pipe is lower than that of the air outlet pipe.
2. The wet type dust collector for combined alkali preparation and calcination as claimed in claim 1, wherein the water distribution device comprises a groove type water distributor (6), a water distribution main pipe (7) and a plurality of groups of water distribution branch pipes (8), the groove type water distributor (6) is fixedly arranged in a circular straight cylinder of the washing tower (1), the groove type water distributor (6) is provided with a water distribution main groove and a plurality of groups of water distribution branch grooves communicated with the water distribution main groove, the water distribution main pipe (7) is fixedly arranged on the groove type water distributor (6), the water distribution main pipe (7) is positioned in the water distribution main groove, the input end of the water distribution main pipe (7) is communicated with the liquid inlet pipe (5), the plurality of groups of water distribution branch pipes (8) are communicated with the water distribution main pipe (7), the plurality of groups of water distribution branch pipes (8) are respectively positioned in the plurality of groups of water distribution branch grooves, and the left side and right side of the water distribution main pipe (7) are provided with a plurality of groups of water drainage holes.
3. The wet type dust collector for combined alkali preparation and calcination as claimed in claim 1, further comprising an annular pipe (9), wherein the annular pipe (9) is fixedly arranged at the top of the circular straight cylinder, a plurality of groups of drain holes are formed in the lower part of the annular pipe (9), the plurality of groups of drain holes are uniformly distributed in the lower part of the annular pipe (9), two groups of output ends are arranged on the liquid inlet pipe (5), and the two groups of output ends of the liquid inlet pipe (5) are respectively communicated with the annular pipe (9) and the main water distribution pipe (7).
4. The wet dust collector for combined alkali-making calcined soda transport as claimed in claim 2, further comprising a spray filler (10), wherein the spray filler (10) is fixedly arranged in the middle of the circular straight cylinder of the washing tower (1).
5. A combined alkali-making calcined soda transporting wet dust collector as set forth in claim 2, wherein the height of the trough type water distributor (6) is 100-150mm.
6. The wet dust collector for transporting combined alkali-making calcined soda as set forth in claim 4, wherein the spray filler (10) is a pall ring made of stainless steel and has a height of 480-520mm.
7. The wet dust collector for transporting combined alkali-making calcined soda as set forth in claim 4, wherein the distance between the trough-type water distributor (6) and the spray filler (10) is greater than or equal to 200mm.
8. The wet dust collector for combined alkali-making calcined caustic soda transportation according to claim 1, further comprising a liquid baffle plate (11), wherein the liquid baffle plate (11) is obliquely and fixedly arranged on the inner side wall of the washing tower (1), and the liquid baffle plate (11) is positioned above the air outlet pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421335463.9U CN222658213U (en) | 2024-06-12 | 2024-06-12 | A wet dust removal device for combined alkali production, calcination and transportation of alkali |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421335463.9U CN222658213U (en) | 2024-06-12 | 2024-06-12 | A wet dust removal device for combined alkali production, calcination and transportation of alkali |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222658213U true CN222658213U (en) | 2025-03-25 |
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ID=95049035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421335463.9U Active CN222658213U (en) | 2024-06-12 | 2024-06-12 | A wet dust removal device for combined alkali production, calcination and transportation of alkali |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222658213U (en) |
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2024
- 2024-06-12 CN CN202421335463.9U patent/CN222658213U/en active Active
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