CN210874798U - Alkaline washing tower - Google Patents
Alkaline washing tower Download PDFInfo
- Publication number
- CN210874798U CN210874798U CN201921624076.6U CN201921624076U CN210874798U CN 210874798 U CN210874798 U CN 210874798U CN 201921624076 U CN201921624076 U CN 201921624076U CN 210874798 U CN210874798 U CN 210874798U
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- washing cavity
- liquid inlet
- tower body
- alkali washing
- baffle
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- 238000005406 washing Methods 0.000 title claims abstract description 100
- 239000003513 alkali Substances 0.000 claims abstract description 148
- 239000007788 liquid Substances 0.000 claims abstract description 114
- 239000006185 dispersion Substances 0.000 claims abstract description 14
- 239000003518 caustics Substances 0.000 claims 9
- 238000004140 cleaning Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 44
- 230000009286 beneficial effect Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000002912 waste gas Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000011282 treatment Methods 0.000 description 3
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000009395 genetic defect Effects 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
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- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a gas cleaning field specifically discloses an alkaline washing tower. The tower comprises a tower body, wherein the inner cavity of the tower body is divided into a dilute alkali washing cavity and a concentrated alkali washing cavity; an air outlet and an air inlet are respectively arranged at the upper end and the lower end of the tower body, an upper liquid inlet and a lower liquid inlet are respectively arranged at the upper ends of the concentrated alkali washing cavity and the dilute alkali washing cavity, an upper liquid outlet and a lower liquid outlet are respectively arranged at the lower ends of the concentrated alkali washing cavity and the dilute alkali washing cavity, an upper pump body is communicated between the upper liquid inlet and the upper liquid outlet, and a lower pump body is communicated between the lower liquid inlet and the lower liquid outlet; the concentrated alkali washing cavity is also communicated with a liquid feeding pipe, a dispersion layer is fixed in the concentrated alkali washing cavity, and a channel is arranged on the dispersion layer; a baffle is arranged between the dilute alkali washing cavity and the concentrated alkali washing cavity, and a down flow channel is formed between one end of the baffle, far away from the tower body, and the side wall of the tower body; the upper liquid outlet is positioned between the baffle and the side wall of the tower body. The alkaline washing tower in the scheme can discharge part of concentrated alkali liquor while carrying out alkaline washing on gas, so that the phenomenon that the dilute alkali liquor in the lower section is increased rapidly is avoided.
Description
Technical Field
The utility model relates to a gas cleaning field specifically discloses an alkaline washing tower.
Background
Chromium has excellent properties such as hardness, brittleness, corrosion resistance and the like, so that chromium is widely applied to the fields of metallurgy, chemical engineering, cast iron, fire resistance, high-precision science and technology and the like. Hexavalent chromium is an ingestible poison/inhalation toxicant, however, skin contact may lead to sensitization; more likely to cause genetic defects, possibly carcinogenic by inhalation, and persistent environmental hazards, and thus waste chromium needs to be recovered. The waste containing hexavalent chromium comprises waste water and waste residues, waste gas is generated in the process of treating the waste residues and the waste water, and the waste gas contains multiple pollutants, so that the waste gas can meet the discharge requirement after a series of treatments.
One of the treatment links of the waste gas is alkaline washing, which is carried out by an alkaline washing tower, and the alkaline washing tower comprises an upper section and a lower section: the lower section adopts dilute alkali liquor to carry out preliminary alkali washing on the gas, the upper section adopts concentrated alkali liquor with concentration higher than that of the dilute alkali liquor to carry out alkali washing on the gas for the second time, the dilute alkali liquor in the lower section is recycled, but along with the progress of alkali washing, alkaline substances in the dilute alkali liquor are gradually consumed, the alkali washing effect can be reduced, and at the moment, the concentrated alkali liquor in the upper section flows into the lower section to supplement the alkaline substances consumed in the lower section.
However, in order to ensure the alkaline washing effect on gas in the existing alkaline washing tower, concentrated alkaline liquor needs to be continuously introduced into the upper section, and under the condition that the concentration of the concentrated alkaline liquor is the same, the more concentrated alkaline liquor is introduced in unit time, the more concentrated alkaline liquor is contacted with gas, the better the alkaline washing effect on gas is, but the more concentrated alkaline liquor enters the lower section in unit time. The dilute alkali liquor in the alkaline tower is recycled, and can be uniformly replaced only when the concentration of the dilute alkali liquor is low; however, the space of the lower section is limited, which results in that the concentrated alkali liquor entering the lower section in unit time cannot be excessive, otherwise, before the alkalinity of the dilute alkali liquor of the lower section is reduced to the extent that the dilute alkali liquor needs to be replaced, the dilute alkali liquor in the lower section can fill the lower section due to excessive quantity, the redundant dilute alkali liquor needs to be discharged, and in order to avoid gas leakage, the alkali washing needs to be stopped when the redundant dilute alkali liquor is discharged, and finally, the alkali washing efficiency is reduced. However, reducing the amount of the concentrated alkali to be introduced reduces the alkali cleaning effect on the gas, and is not favorable for the gas treatment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an alkaline washing tower of discharge part dense alkali lye when carrying out the alkaline washing to gas avoids the thin alkali lye in the hypomere to increase fast.
In order to achieve the above purpose, the technical scheme of the utility model is that: the alkaline washing tower comprises a tower body, wherein the inner cavity of the tower body is divided into a dilute alkaline washing cavity and a concentrated alkaline washing cavity positioned above the dilute alkaline washing cavity; an air outlet and an air inlet are respectively arranged at the upper end and the lower end of the tower body, an upper liquid inlet and a lower liquid inlet are respectively arranged at the upper ends of the concentrated alkali washing cavity and the dilute alkali washing cavity, an upper liquid outlet and a lower liquid outlet are respectively arranged at the lower ends of the concentrated alkali washing cavity and the dilute alkali washing cavity, an upper pump body is communicated between the upper liquid inlet and the upper liquid outlet, and a lower pump body is communicated between the lower liquid inlet and the lower liquid outlet; the concentrated alkali washing cavity is also communicated with a liquid feeding pipe, a plurality of dispersion layers are fixed in the concentrated alkali washing cavity from top to bottom, the adjacent dispersion layers are arranged at intervals, and a plurality of channels for alkali liquor and gas to pass through are arranged on the dispersion layers; a baffle is arranged between the dilute alkali washing cavity and the concentrated alkali washing cavity, the baffle is fixed with the inner wall of the tower body, and a down-flow channel is formed between one end of the baffle, far away from the tower body, and the side wall of the tower body; the upper liquid outlet is positioned between the baffle and the side wall of the tower body.
The beneficial effect of this scheme does:
1. in the scheme, the concentrated alkali liquor in the concentrated alkali washing cavity is gradually dispersed by the dispersing layers when sequentially flowing through the plurality of dispersing layers, and the last part of the concentrated alkali liquor falls on the baffle and is blocked by the baffle; when the upper pump body works, negative pressure is formed around the upper liquid outlet, the concentrated alkali liquor on the baffle flows out from the liquid outlet under the action of the negative pressure, enters the upper end of the concentrated alkali washing cavity from the liquid inlet through the upper pump body again, continues to flow downwards, and carries out alkali washing on the gas again. In the scheme, only part of the concentrated alkali liquor enters the dilute alkali washing cavity, and the concentrated alkali liquor entering the dilute alkali washing cavity in unit time is reduced, so that the increasing speed of the alkali liquor in the dilute alkali washing cavity is slowed down, and the time for filling the dilute alkali washing cavity with the alkali liquor is longer, thereby prolonging the time for stopping alkali washing and discharging the dilute alkali liquor in addition and improving the alkali washing efficiency.
2. When the amount of the concentrated alkali liquor entering from the upper liquid inlet is too small, the concentrated alkali liquor can be added into the concentrated alkali washing cavity through the liquid adding pipe, so that the alkali washing effect on gas is ensured.
Furthermore, the baffle is the slope that is kept away from tower body one end and is higher than the other end.
The beneficial effect of this scheme does: the baffle slope, the thick alkali lye that can assemble between baffle and the tower body is bigger to can make more thick alkali lye circulations use, further slow down the alkali lye growth rate in the dilute alkali wash chamber.
Furthermore, the baffle is cone-shaped, and the down-flow channel is positioned on the inner periphery of the baffle.
The beneficial effect of this scheme does: the cone-shaped baffle can avoid the concentrated alkali liquor gathered on the baffle from sliding to the dilute alkali washing cavity from the side edge of the baffle, and further more concentrated alkali liquor can be recycled.
Furthermore, a flow guide block is arranged in the lower flow passage, a flow guide gap is formed between the flow guide block and the lower flow passage, and the lower end of the flow guide block is a lower cambered surface which is convex downwards.
The beneficial effect of this scheme does: gas passes through the diversion gap when flowing upwards through the downflow channel, and the lower cambered surface guides the flow of the gas to promote the gas to flow to one side close to the side wall of the tower body, so that the gas is favorably dispersed in the concentrated alkali washing cavity and fully contacted with concentrated alkali liquor, and the secondary alkali washing effect is improved. In addition, the concentrated alkali liquor falling to the top of the flow guide block can flow along the lower cambered surface, so that the concentrated alkali liquor flows into the dilute alkali washing cavity from the bottom of the lower cambered surface, and the gas flowing upwards is not blocked.
Further, the top of the flow guide block is provided with an accommodating groove.
The beneficial effect of this scheme does: the holding tank plays the effect of assembling concentrated alkali liquid, and the concentrated alkali liquid that lies in directly over the water conservancy diversion piece falls behind with the concentrated alkali liquid contact in the holding tank, and the concentrated alkali liquid that splashes during the contact reduces, avoids splashing because of concentrated alkali liquid in a large number and falls to the baffle on, guarantees to have enough concentrated alkali liquid to get into the dilute alkaline washing chamber in, makes the dilute alkaline washing chamber keep alkaline state to can be abundant wash with alkaline gas.
Further, the dispersion stratum top of the top is equipped with the last liquid inlet pipe, go up the liquid inlet pipe and go up the liquid inlet intercommunication and fixed with the tower body, it is equipped with a plurality of upper passageways to go up liquid pipe bottom.
The beneficial effect of this scheme does: concentrated alkali solution in this scheme flows from the upper channel, and a plurality of upper channels can carry out preliminary dispersion to concentrated alkali solution, further make concentrated alkali solution and gas contact, improve the alkaline washing effect to gas.
Further, be equipped with the defogging layer between last inlet tube and the gas outlet, the defogging layer is fixed with the tower body, and is equipped with a plurality of wavy defogging passageways along vertical in the defogging layer.
The beneficial effect of this scheme does: part follow the concentrated alkali liquor of upper channel spun and be the less liquid droplet form of granularity, be wrapped up in by gas easily and be carrying upward movement, when gas passes the defogging passageway, because the defogging passageway is crooked, the concentrated alkali liquor of the liquid droplet form in the gas contacts with defogging passageway lateral wall to on attaching to defogging passageway lateral wall, when the concentrated alkali liquor of assembling was more, concentrated alkali liquor can flow down along the defogging passageway, avoids a large amount of concentrated alkali liquor to mix and reveals from the gas outlet in the gas.
Furthermore, the upper liquid inlet pipe is in an Archimedes spiral shape, and a gap for air to pass through is reserved between the adjacent pipe bodies.
The beneficial effect of this scheme does: the length of the mosquito-repellent incense-shaped upper liquid inlet pipe is larger, the number of the upper channels which can be arranged is more, and the concentrated alkali liquid can be more dispersed when being sprayed out from more upper channels.
Further, a lower liquid inlet pipe is arranged at the upper end of the dilute alkali washing cavity, the lower liquid inlet pipe is communicated with the lower liquid inlet and is fixed with the tower body, and a plurality of lower channels are arranged at the bottom of the lower liquid inlet pipe.
The beneficial effect of this scheme does: the dilute alkali liquor in the scheme flows out from the lower channels, and the lower channels can disperse the dilute alkali liquor, so that the dilute alkali liquor is further contacted with gas, and the alkaline washing effect on the gas is improved.
Furthermore, the lower ends of the upper channel and the lower channel are respectively lower than the upper liquid inlet pipe and the lower liquid inlet pipe.
The beneficial effect of this scheme does: the alkali liquor flowing out from the upper channel and the lower channel cannot flow to the outer walls of the upper liquid inlet pipe and the lower liquid inlet pipe in a large amount, so that the corrosion to the upper liquid inlet pipe and the lower liquid inlet pipe is reduced, and the service life of the upper liquid inlet pipe and the lower liquid inlet pipe is prolonged.
Drawings
Fig. 1 is a front longitudinal sectional view of embodiment 1 of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is a front longitudinal sectional view of a defogging layer according to embodiment 2 of the present invention;
fig. 4 is a top view of the upper inlet pipe of fig. 3.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the tower body 1, an air outlet 11, an air inlet 12, a concentrated alkali washing cavity 13, a diluted alkali washing cavity 14, a lower liquid outlet 15, an upper pump body 16, a lower pump body 17, an upper liquid inlet pipe 2, an upper channel 21, a liquid feeding pipe 22, a lower liquid inlet pipe 3, a dispersing layer 4, a baffle 5, a flow guide gap 51, a connecting rod 52, a flow guide block 6, a containing groove 61, a demisting layer 7 and a demisting channel 71.
Example 1
The alkaline washing tower comprises a tower body 1, wherein the inner cavity of the tower body 1 is divided into a dilute alkaline washing cavity 14 and a concentrated alkaline washing cavity 13 positioned above the dilute alkaline washing cavity 14; the top of the tower body 1 is provided with an air outlet 11, and the lower end of the tower body 1 is provided with an air inlet 12. An upper liquid inlet and an upper liquid outlet are respectively arranged at the upper end and the lower end of the concentrated alkali washing cavity 13, a lower liquid inlet and a lower liquid outlet 15 are respectively arranged at the upper end and the lower end of the diluted alkali washing cavity 14, and the air inlet 12 is positioned below the lower liquid inlet. The concentrated alkali washing cavity 13 is connected with an upper pump body 16 through a pipeline, and an upper liquid outlet is communicated with a liquid inlet end of the upper pump body 16 through another pipeline; the diluted alkaline washing cavity 14 is connected with a lower pump body 17 through a pipeline, and a lower liquid outlet 15 is communicated with a liquid inlet end of the lower pump body 17 through another pipeline.
The concentrated alkali washing cavity 13 is also communicated with a liquid feeding pipe 22, wherein the liquid feeding pipe 22 and the upper liquid inlet are respectively positioned at two sides of the tower body 1, the upper end of the concentrated alkali washing cavity 13 is provided with an upper liquid feeding pipe 2, the left end of the upper liquid feeding pipe 2 in the embodiment extends into the upper liquid inlet and is welded with the tower body 1, and the left end and the right end of the upper liquid feeding pipe 2 are respectively communicated with the upper liquid feeding pipe 22 and the upper liquid feeding pipe. The upper end of the dilute alkali cleaning cavity 14 is provided with a lower liquid inlet pipe 3, and the left end of the lower liquid inlet pipe 3 extends into the lower liquid inlet and is welded with the tower body 1. Go up feed liquor pipe 2 and 3 bottoms of feed liquor pipe down and be equipped with a plurality of upper channels 21 and a plurality of lower passageways respectively, upper channels 21 and lower passageway lower extreme all bulge downwards to when dense alkali lye spouts from upper channels 21, can not be a large amount of attached to at last feed liquor pipe 2 and 3 outer walls of feed liquor pipe down.
A plurality of dispersing layers 4 are distributed in the concentrated alkaline washing cavity 13 from top to bottom, the dispersing layers 4 in the embodiment are fixed on the tower body 1 through bolts, the adjacent dispersing layers 4 are arranged in a gap mode, a plurality of channels for alkali liquor and gas to pass through are vertically arranged in the dispersing layers 4, when the dispersing layers 4 are used practically, the dispersing layers 4 can directly adopt existing corrugated packing made of metal materials, and SW-2 type stainless steel mesh corrugated packing produced by Yangtze city jinxin tower packing limited company is selected for use in the embodiment.
Be equipped with baffle 5 between concentrated alkaline wash chamber 13 and the dilute alkaline wash chamber 14, baffle 5 in this embodiment is the awl tube-shape, and baffle 5 passes through the bolt fastening at 1 inner wall of tower body, and baffle 5 in this embodiment is and keeps away from 1 one end of tower body and is higher than being close to 1 one end of tower body, goes up the liquid outlet and is located between 5 lower extremes of baffle and the 1 lateral wall of tower body. As shown in fig. 2, the inner periphery of the baffle 5 is a down flow channel, a flow guide block 6 and three connecting rods 52 are arranged in the down flow channel, the three connecting rods 52 are uniformly distributed along the circumferential direction of the flow guide block 6, and two ends of each connecting rod 52 are respectively welded on the baffle 5 and the flow guide block 6, so that the flow guide block 6 is fixed. The 6 tops of water conservancy diversion piece are equipped with holding tank 61, and the space between 6 and the baffle 5 upper ends of water conservancy diversion piece is water conservancy diversion clearance 51, and 6 bottom surfaces of water conservancy diversion piece are the lower cambered surface of underbump to gas through water conservancy diversion clearance 51 carries out the water conservancy diversion, impels gas to being close to 1 lateral wall one side motion of tower body, thereby impels gas diffusion.
The specific implementation process is as follows:
as shown in figure 1, when the gas is subjected to alkaline washing, firstly, concentrated alkali liquor or dilute alkali liquor is manually added into the tower body 1 from the liquid adding pipe 22, when the alkali liquor flows downwards to the baffle 5, part of the alkali liquor is blocked by the baffle 5 and is gathered between the baffle 5 and the side wall of the tower body 1, and after the space between the baffle 5 and the side wall of the tower body 1 is filled, the alkali liquor flows into the dilute alkaline washing cavity 14 from the flow guide gap 51. And after the alkali liquor is filled with 1/4-1/3 of the dilute alkali wash cavity 14, manually introducing gas to be treated into the tower body 1 through the air inlet 12, simultaneously starting the upper pump body 16 and the lower pump body 17, and introducing concentrated alkali liquor into the concentrated alkali wash cavity 13 from the liquid adding pipe 22.
When the lower pump body 17 works, the alkali liquor at the bottom of the dilute alkali washing cavity 14 is sprayed out from the lower channel, and the gas entering the dilute alkali washing cavity is subjected to first alkali washing. The gas moves upwards, enters the concentrated alkali washing cavity 13 from the guide gap 51 along the bottom of the guide block 6 when contacting the bottom of the guide block 6, and diffuses towards the side wall of the tower body 1 under the guide action of the bottom of the guide block 6.
The concentrated alkali liquor entering from the liquid adding pipe 22 firstly enters the upper liquid inlet pipe 2 and then is sprayed out from the upper channel 21; when the upper pump body 16 works, the concentrated alkali liquor between the baffle 5 and the tower body 1 also enters the upper liquid inlet pipe 2 and is sprayed out from the upper channel 21, the concentrated alkali liquor downwards passes through the dispersing layers 4 and is gradually dispersed into the dispersing layers 4 to be contacted with the gas upwards passing through the dispersing layers 4, and the gas is subjected to secondary alkali washing.
The concentrated alkali liquor passing through all the dispersion layers 4 flows to the positions above the baffle plates 5 and the flow guide blocks 6, part of the concentrated alkali liquor is positioned right above the baffle plates 5, and falls between the baffle plates 5 and the side wall of the tower body 1 when flowing downwards, and finally is introduced into the upper liquid inlet pipe 2 again by the upper pump body 16 from the upper liquid outlet; part of the strong alkali liquid is located right above the flow guide block 6, and the part of the strong alkali liquid flows downwards into the accommodating groove 61, flows along the lower cambered surface of the bottom of the flow guide block 6 after the accommodating groove 61 is filled with the strong alkali liquid, passes through the flow guide gap 51 and flows into the dilute alkali washing cavity 14, so that the alkali liquid in the dilute alkali washing cavity 14 is kept in an alkaline state. And the gas passing through all the dispersion layers 4 is subjected to alkali washing and is discharged from the gas outlet 11.
Example 2
On the basis of embodiment 1, as shown in fig. 3 and 4, a defogging layer 7 is disposed between the upper liquid inlet pipe 2 and the air outlet 11 in this embodiment, the defogging layer 7 is fixed on the tower body 1 by bolts, a plurality of defogging channels 71 are disposed in the defogging layer 7, and the defogging channels 71 are vertically disposed and are in a wave shape. In addition, the upper liquid inlet pipe 2 and the lower liquid inlet pipe 3 in the embodiment are in an archimedes spiral shape, and a gap for gas to pass through is reserved between the adjacent pipe bodies.
The gas in this embodiment needs to pass through the demisting channel 71 after passing through all the dispersion layers 4, the alkali liquid droplets entrained in the gas contact with the side wall of the demisting channel 71 when passing through the wavy demisting channel 71, and thus adhere to the side wall of the demisting channel 71, and when there are more droplets adhering to the side wall of the demisting channel 71, the droplets slide downwards along the demisting channel 71 to enter the concentrated alkali washing chamber 13 again. Otherwise, the other alkaline washing steps in this example were the same as in example 1.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the present invention and the practicability of the patent. The technology, shape and construction parts which are not described in the present invention are all known technology.
Claims (10)
1. The alkaline washing tower comprises a tower body, wherein the inner cavity of the tower body is divided into a dilute alkaline washing cavity and a concentrated alkaline washing cavity positioned above the dilute alkaline washing cavity; both ends are equipped with gas outlet and air inlet, its characterized in that respectively about the tower body: the upper ends of the concentrated alkali washing cavity and the dilute alkali washing cavity are respectively provided with an upper liquid inlet and a lower liquid inlet, the lower ends of the concentrated alkali washing cavity and the dilute alkali washing cavity are respectively provided with an upper liquid outlet and a lower liquid outlet, an upper pump body is communicated between the upper liquid inlet and the upper liquid outlet, and a lower pump body is communicated between the lower liquid inlet and the lower liquid outlet; the concentrated alkali washing cavity is also communicated with a liquid feeding pipe, a plurality of dispersion layers are fixed in the concentrated alkali washing cavity from top to bottom, the adjacent dispersion layers are arranged at intervals, and a plurality of channels for alkali liquor and gas to pass through are arranged on the dispersion layers; a baffle is arranged between the dilute alkali washing cavity and the concentrated alkali washing cavity, the baffle is fixed with the inner wall of the tower body, and a down-flow channel is formed between one end of the baffle, far away from the tower body, and the side wall of the tower body; the upper liquid outlet is positioned between the baffle and the side wall of the tower body.
2. A caustic tower according to claim 1, wherein: the baffle is the slope that keeps away from tower body one end and be higher than the other end.
3. A caustic tower according to claim 2, wherein: the baffle is cone-shaped, and the downflow channel is positioned on the inner periphery of the baffle.
4. A caustic tower according to claim 3, wherein: a flow guide block is arranged in the lower flow passage, a flow guide gap is formed between the flow guide block and the lower flow passage, and the lower end of the flow guide block is a lower cambered surface which is convex downwards.
5. A caustic tower according to claim 4, wherein: the top of the flow guide block is provided with an accommodating groove.
6. A caustic tower according to claim 1, wherein: the dispersion layer top of the top is equipped with the last liquid inlet pipe, go up the liquid inlet pipe and go up the liquid mouth intercommunication and fixed with the tower body, it is equipped with a plurality of upper passageways to go up liquid pipe bottom.
7. A caustic tower according to claim 6, wherein: be equipped with the defogging layer between last inlet tube and the gas outlet, the defogging layer is fixed with the tower body, and is equipped with a plurality of wavy defogging passageways along vertical in the defogging layer.
8. A caustic tower according to claim 7, wherein: the upper liquid inlet pipe is in an Archimedes spiral shape, and a gap for air to pass through is reserved between the adjacent pipe bodies.
9. A caustic tower according to claim 6, wherein: the upper end of the dilute alkali washing cavity is provided with a lower liquid inlet pipe, the lower liquid inlet pipe is communicated with a lower liquid inlet and is fixed with the tower body, and the bottom of the lower liquid inlet pipe is provided with a plurality of lower channels.
10. A caustic tower according to claim 9, wherein: the lower ends of the upper channel and the lower channel are respectively lower than the upper liquid inlet pipe and the lower liquid inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921624076.6U CN210874798U (en) | 2019-09-26 | 2019-09-26 | Alkaline washing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921624076.6U CN210874798U (en) | 2019-09-26 | 2019-09-26 | Alkaline washing tower |
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| Publication Number | Publication Date |
|---|---|
| CN210874798U true CN210874798U (en) | 2020-06-30 |
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| CN201921624076.6U Expired - Fee Related CN210874798U (en) | 2019-09-26 | 2019-09-26 | Alkaline washing tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682037A (en) * | 2022-02-22 | 2022-07-01 | 杭州天子岭发电有限公司 | Multi-technology combined deodorization system for improving workshop environment |
-
2019
- 2019-09-26 CN CN201921624076.6U patent/CN210874798U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114682037A (en) * | 2022-02-22 | 2022-07-01 | 杭州天子岭发电有限公司 | Multi-technology combined deodorization system for improving workshop environment |
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