CN211799876U - Alkali liquor absorption tower with filler backwashing device - Google Patents
Alkali liquor absorption tower with filler backwashing device Download PDFInfo
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- CN211799876U CN211799876U CN201922436693.XU CN201922436693U CN211799876U CN 211799876 U CN211799876 U CN 211799876U CN 201922436693 U CN201922436693 U CN 201922436693U CN 211799876 U CN211799876 U CN 211799876U
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- absorption tower
- alkali liquor
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- alkali
- recovery tank
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Abstract
The utility model discloses an alkali lye absorption tower with back washing unit packs, include: an alkali liquor recovery tank; a cleaning liquid recovery tank; an alkali liquor absorption tower; the packing layer comprises a plurality of layers of supporting nets and a plastic floating ball layer; the vibration device comprises a vibration rod group and a power supply; the back washing device comprises an annular pipe, a nozzle group, a flushing liquid tank, a high-pressure pump and an infusion pipe group, wherein the annular pipe is arranged in the alkali liquid absorption tower and is positioned above the packing layer, the nozzle group is communicated with the annular pipe, the flushing liquid tank is arranged on the outer wall of the alkali liquid absorption tower, the high-pressure pump is arranged in the flushing liquid tank, the infusion pipe group is communicated with the high-pressure pump and the annular pipe, and a heater is arranged on the infusion pipe group. The utility model provides a pair of alkali lye absorption tower with anti-washing unit packs can solve the problem that the inorganic salt crystallization on the filler layer blockked up the tower body in the tower body for the filler in the tower body can regular wash, and the increase air current passes through the sectional area.
Description
Technical Field
The utility model relates to a chlorinated paraffin production field, more specifically say, the utility model relates to an alkali lye absorption tower with back washing unit packs.
Background
In the production process of chlorinated paraffin, tail gas discharged from a hydrochloric acid working section enters an alkali absorption tower, and chlorine and hydrogen chloride in the tail gas are absorbed by using 10% alkali liquor as an absorbent to prepare a byproduct sodium hypochlorite (the content of effective chlorine is 10%). Chlorine can form inorganic salt through alkali lye absorption, but the absorption tower is used for a long time, the absorption liquid is close the saturation back, inorganic salt can be at the filler in the absorption tower on the crystallization deposit, the place deposit that the flow rate reduces gets off, in a word, inorganic salt's deposit will be the trend of accelerating along with the time lapse, because the air feed of packing layer, the free cross section of liquid circulation constantly reduces, lead to the packing layer to block up, thereby influence the absorption effect of alkali lye to tail gas, lead to production incident or harmful gas such as chlorine directly to discharge into the atmosphere, cause the pollution of environment. Therefore, the tail gas absorption system is improved, the escape of chlorine is prevented and reduced, and the method has very important significance for safe production and environmental protection.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model also aims to provide an alkali liquor absorption tower with a vibration device and a filler backwashing device.
In order to realize the above purpose, the utility model provides an alkali lye absorption tower with filler back flush unit which characterized in that includes:
an alkali liquor recovery tank;
the cleaning solution recovery tank is arranged on one side of the alkali liquor recovery tank;
the alkali liquor absorption tower is arranged at the tops of the alkali liquor recovery tank and the cleaning solution recovery tank, the alkali liquor absorption tower is communicated with the alkali liquor recovery tank through a first through pipe, the alkali liquor absorption tower is communicated with the cleaning solution recovery tank through a second through pipe, a liquid inlet pipe and a gas outlet pipe are arranged at the top of the alkali liquor absorption tower, and a gas inlet pipe is arranged at the bottom of the alkali liquor absorption tower;
the packing layer is horizontally arranged inside the alkali liquor absorption tower and comprises a plurality of layers of supporting nets horizontally arranged on the inner wall of the alkali liquor absorption tower and plastic floating ball layers arranged between every two layers of supporting nets;
the vibration device comprises vibration rod groups arranged on the upper surface and the lower surface of the packing layer and a power supply arranged on the outer wall of the alkali liquor absorption tower and electrically connected with the vibration rod groups;
the back washing device comprises an annular pipe, a nozzle group, a flushing liquid box, a high-pressure pump and an infusion pipe group, wherein the annular pipe is arranged inside the alkali liquid absorption tower and above the packing layer, the nozzle group is communicated with the annular pipe, the flushing liquid box is arranged on the outer wall of the alkali liquid absorption tower, the high-pressure pump is arranged inside the flushing liquid box, the infusion pipe group is communicated with the high-pressure pump and the annular pipe, a heater is arranged on the infusion pipe group, and the heater is electrically connected with the power supply.
Preferably, the number of the support nets is at least 5, the distance between each support net and the other adjacent support net is larger than the diameter of the plastic floating ball layer, and the difference is 5-10 mm.
Preferably, the first through pipe and the second through pipe are both provided with mechanical valves.
Preferably, the bottom of the alkali liquor recovery box is provided with a liquid discharge pipe.
Preferably, the height difference between the upper surface of the packing layer and the annular tube is less than 20 cm.
Preferably, the infusion tubing set has a diameter of less than 20mm and an overall length of greater than 3 m.
The utility model discloses at least, include following beneficial effect:
1. an alkali lye absorption tower with anti-washing unit packs, can solve the problem that the inorganic salt crystallization of the interior filler layer of tower body blockked up the tower body for pack in the tower body can be regular wash, the sectional area is passed through to the increase air current, further makes the area of contact increase of alkali lye and tail gas, harmful ingredients such as chlorine in the tail gas are by abundant absorption that obtains, avoid discharging into the atmosphere or cause the production incident.
2. An alkali lye absorption tower with back washing unit packs, it is equipped with vibrator, not only can make alkali lye and more abundant reaction of tail gas, enables to wash cleaner thoroughly moreover.
3. An alkali lye absorption tower with back washing unit packs, its reasonable in design is ingenious, is fit for using widely.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of an alkali absorption tower with a filler backwashing device according to the present invention.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1, one embodiment of the present invention provides an alkali absorption tower with a filler backwashing device, which comprises:
an alkali liquor recovery tank 2;
a cleaning solution recovery tank 3 arranged on one side of the alkali liquor recovery tank 2;
the cleaning solution recycling device comprises an alkali liquor absorption tower 1, a cleaning solution recycling tank 3 and a cleaning solution recycling tank 2, wherein the alkali liquor absorption tower 1 is arranged at the top of the cleaning solution recycling tank 3, the alkali liquor absorption tower 1 is communicated with the alkali liquor recycling tank 2 through a first through pipe 4, the alkali liquor absorption tower 1 is communicated with the cleaning solution recycling tank 3 through a second through pipe 5, a liquid inlet pipe 8 and an air outlet pipe 9 are arranged at the top of the alkali liquor absorption tower 1, and an air inlet pipe 7 is arranged at the bottom of the alkali liquor absorption tower;
the packing layer is horizontally arranged inside the alkali liquor absorption tower 1 and comprises a plurality of layers of supporting nets 18 horizontally arranged on the inner wall of the alkali liquor absorption tower 1 and plastic floating ball layers 19 arranged between every two layers of supporting nets 18;
the vibration device comprises vibration rod groups 17 arranged on the upper surface and the lower surface of the packing layer and a power supply 16 arranged on the outer wall of the alkali liquor absorption tower 1 and electrically connected with the vibration rod groups 17;
the back washing device comprises an annular pipe 14 which is arranged inside the alkali liquor absorption tower 1 and is positioned above the packing layer, a nozzle group 15 which is communicated with the annular pipe 14, a flushing liquid tank 10 which is arranged on the outer wall of the alkali liquor absorption tower 1, a high-pressure pump 11 which is arranged inside the flushing liquid tank 10, and an infusion pipe group 13 which is used for communicating the high-pressure pump 11 with the annular pipe 14, wherein a heater 12 is arranged on the infusion pipe group 13, and the heater 12 is electrically connected with a power supply 16.
Further, the number of the support net 18 is at least 5, and the distance between the support net 18 and another adjacent support net 18 is greater than the diameter of the plastic floating ball layer 19, and the difference is 5-10 mm.
Further, the first through pipe 4 and the second through pipe 5 are both provided with mechanical valves.
Further, a liquid discharge pipe 6 is arranged at the bottom of the alkali liquor recovery tank 2.
Further, the height difference between the upper surface of the packing layer and the annular tube 14 is less than 20 cm.
Further, the infusion tube set 13 has a diameter of less than 20mm and an overall length of more than 3 m.
The utility model provides a pair of alkali lye absorption tower with filler back flush unit's application method does: when the tail gas is absorbed, the power supply of the vibration rod group can be switched on, so that the contact area of the plastic floating ball and the alkali liquor is more sufficient, and the alkali liquor and the tail gas are more sufficiently reacted under the vibration effect; when the absorption tower is washed, the high-pressure pump and the heater are started, the cleaning liquid is rapidly sprayed on the packing layer through the nozzle group, and the vibrating bar group is started simultaneously, so that the packing layer is cleaned more cleanly and thoroughly under the action of vibration.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details shown and described herein without departing from the general concept defined by the claims and their equivalents.
Claims (6)
1. The utility model provides an alkali lye absorption tower with filler back flush unit which characterized in that includes:
an alkali liquor recovery tank;
the cleaning solution recovery tank is arranged on one side of the alkali liquor recovery tank;
the alkali liquor absorption tower is arranged at the tops of the alkali liquor recovery tank and the cleaning solution recovery tank, the alkali liquor absorption tower is communicated with the alkali liquor recovery tank through a first through pipe, the alkali liquor absorption tower is communicated with the cleaning solution recovery tank through a second through pipe, a liquid inlet pipe and a gas outlet pipe are arranged at the top of the alkali liquor absorption tower, and a gas inlet pipe is arranged at the bottom of the alkali liquor absorption tower;
the packing layer is horizontally arranged inside the alkali liquor absorption tower and comprises a plurality of layers of supporting nets horizontally arranged on the inner wall of the alkali liquor absorption tower and plastic floating ball layers arranged between every two layers of supporting nets;
the vibration device comprises vibration rod groups arranged on the upper surface and the lower surface of the packing layer and a power supply arranged on the outer wall of the alkali liquor absorption tower and electrically connected with the vibration rod groups;
the back washing device comprises an annular pipe, a nozzle group, a flushing liquid box, a high-pressure pump and an infusion pipe group, wherein the annular pipe is arranged inside the alkali liquid absorption tower and above the packing layer, the nozzle group is communicated with the annular pipe, the flushing liquid box is arranged on the outer wall of the alkali liquid absorption tower, the high-pressure pump is arranged inside the flushing liquid box, the infusion pipe group is communicated with the high-pressure pump and the annular pipe, a heater is arranged on the infusion pipe group, and the heater is electrically connected with the power supply.
2. The lye absorption tower with the filler backwashing device according to claim 1, wherein the number of the support nets is at least 5, and the distance between the support net and another support net adjacent thereto is greater than the diameter of the plastic floating ball layer by a difference of 5 to 10 mm.
3. The lye absorption tower with a filler backwashing device according to claim 1 wherein the first through pipe and the second through pipe are provided with mechanical valves.
4. The lye absorption tower with filler backwashing device according to claim 1 wherein the lye recovery tank bottom is provided with a drain.
5. The lye absorption tower with filler backwashing device according to claim 1 wherein the height difference between the upper surface of the filler layer and the annular tube is less than 20 cm.
6. The lye absorption tower with filler backwashing device according to claim 1 wherein the diameter of the group of infusion tubes is less than 20mm and the overall length thereof is greater than 3 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922436693.XU CN211799876U (en) | 2019-12-30 | 2019-12-30 | Alkali liquor absorption tower with filler backwashing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922436693.XU CN211799876U (en) | 2019-12-30 | 2019-12-30 | Alkali liquor absorption tower with filler backwashing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211799876U true CN211799876U (en) | 2020-10-30 |
Family
ID=73036602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922436693.XU Active CN211799876U (en) | 2019-12-30 | 2019-12-30 | Alkali liquor absorption tower with filler backwashing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211799876U (en) |
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2019
- 2019-12-30 CN CN201922436693.XU patent/CN211799876U/en active Active
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