CN209254436U - A kind of absorption tower producing formalin and ureaformaldehyde pre-concentration liquid - Google Patents
A kind of absorption tower producing formalin and ureaformaldehyde pre-concentration liquid Download PDFInfo
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- CN209254436U CN209254436U CN201821541630.XU CN201821541630U CN209254436U CN 209254436 U CN209254436 U CN 209254436U CN 201821541630 U CN201821541630 U CN 201821541630U CN 209254436 U CN209254436 U CN 209254436U
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- ureaformaldehyde
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Abstract
A kind of absorption tower for producing formalin and ureaformaldehyde pre-concentration liquid of the utility model, including upper tower body and lower tower body, the import of formaldehyde gas is arranged in lower tower body side, lower end is arranged ureaformaldehyde preshrunk liquid and exports, several lower column plates of setting in lower tower body, lower tower body is located at lower column plate side setting aqueous solution of urea topmost and supplements pipe, upper tower body and lower tower body are separated by tilt clapboard, air inlet pipe and overflow pipe are set on tilt clapboard, upper tower body, which is located at tilt clapboard low spot, is arranged formalin outlet, packing layer is set gradually from bottom to up in upper tower body, formalin spray tube and several The upper column plates, the The upper column plate side setting formalin of the top supplements pipe, float valve is respectively provided on The upper column plate and lower column plate, weir plate and deflector, waste gas outlet is arranged in upper tower body the top, the absorption tower of the production formalin and ureaformaldehyde preshrunk liquid, it can thoroughly absorb Formaldehyde gas, and not only collected formalin but also collected ureaformaldehyde preshrunk liquid, a tower is multi-purpose, and equipment takes up little area.
Description
Technical field
The utility model relates to formaldehyde production equipment more particularly to a kind of suctions for producing formalin and ureaformaldehyde pre-concentration liquid
Receive tower.
Background technique
Ureaformaldehyde preshrunk liquid is made of to absorb formaldehyde gas by aqueous solution of urea, and traditional absorption tower formaldehyde aspiration is not thorough
Bottom, formaldehyde Gas content is high in tail gas, and can only produce ureaformaldehyde preshrunk liquid, has a single function.
Utility model content
The applicant is directed to disadvantage mentioned above, has carried out Improvement, provides a kind of production formalin and ureaformaldehyde pre-concentration
The absorption tower of liquid.
Technical solution used by the utility model is as follows:
A kind of absorption tower producing formalin and ureaformaldehyde pre-concentration liquid, including upper tower body and lower tower body, the lower tower body
The import of formaldehyde gas is arranged in side, and lower end is arranged ureaformaldehyde preshrunk liquid and exports, and several lower column plates of setting in lower tower body, lower tower body is located at most
Column plate side setting aqueous solution of urea supplements pipe under upper end, and the upper tower body and lower tower body are separated by tilt clapboard, tilt every
Air inlet pipe and overflow pipe are set on plate, and upper tower body, which is located at tilt clapboard low spot, is arranged formalin outlet, in upper tower body under
Supreme to set gradually packing layer, formalin spray tube and several The upper column plates, formalin is arranged in the The upper column plate side of the top
Supplement is managed, and float valve, weir plate and deflector are respectively provided in the The upper column plate and lower column plate, and upper tower body the top setting exhaust gas goes out
Mouthful.
As a further improvement of the above technical scheme:
Formalin is also provided on position in the lower tower body under the lowermost between column plate and formaldehyde gas import
Spray tube.
Tilt clapboard, which is located in air inlet pipe, is arranged gas distribution pipe.
The beneficial effects of the utility model are as follows: the absorption tower of the production formalin and ureaformaldehyde pre-concentration liquid, formaldehyde
Gas is introduced into lower tower body, and formaldehyde gas breaks through the float valve of lower column plate, absorbs formaldehyde gas by forming aqueous solution of urea layer on lower column plate
Ureaformaldehyde preshrunk liquid is formed, unabsorbed formaldehyde gas enters upper tower body, and formalin spray tube spray formalin enters filled layer,
Initial absorption formaldehyde gas, formaldehyde gas continue to rise, and break through the float valve of The upper column plate, are further inhaled by the formalin in The upper column plate
Formaldehyde gas is received, formalin is formed and flows downward, discharge can be exported by formalin and collected, or be back to by overflow pipe
In lower tower body, ureaformaldehyde preshrunk liquid, last ureaformaldehyde preshrunk are formed by the aqueous solution of urea hybrid reaction in formalin and column plate
Liquid exports discharge from ureaformaldehyde preshrunk liquid and collects, and formaldehyde gas fully absorbs, and formaldehyde Gas content is few in exhaust gas, and it is pre- both to have produced ureaformaldehyde
Contracting liquid can produce formalin again, and a tower is multi-purpose, save occupation area of equipment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the production formalin of the utility model and the absorption tower of ureaformaldehyde pre-concentration liquid.
In figure: 1, upper tower body；11, packing layer；12, The upper column plate；13, formalin supplement pipe；2, lower tower body；21, lower tower
Plate；211, weir plate；212, deflector；22, aqueous solution of urea supplement pipe；3, formaldehyde gas import；4, ureaformaldehyde preshrunk liquid exports；5, incline
Inclined clapboard；51, air inlet pipe；511, cloth gas hood；52, overflow pipe；6, formalin exports；7, formalin spray tube；8, exhaust gas
Outlet.
Specific embodiment
With reference to the accompanying drawing, illustrate the specific embodiment of the present embodiment
As shown in Figure 1, the production formalin of the present embodiment and the absorption tower of ureaformaldehyde pre-concentration liquid, including 1 He of upper tower body
Formaldehyde gas import 3 is arranged in lower tower body 2, lower 2 side of tower body, and lower end is arranged ureaformaldehyde preshrunk liquid and exports 4, and setting is several in lower tower body 2
Lower column plate 21, lower tower body 2 are located at lower 21 side of column plate setting aqueous solution of urea topmost and supplement pipe 22, be located at most in lower tower body 2
Formalin spray tube 7, upper tower body 1 and lower tower body 2 are set on the position between the lower column plate 21 and formaldehyde gas import 3 of lower end
Separated by tilt clapboard 5, air inlet pipe 51 and overflow pipe 52 are set on tilt clapboard 5, and tilt clapboard 5, which is located in air inlet pipe 51, to be set
Set cloth gas hood 511, upper tower body 1, which is located at 5 low spot of tilt clapboard, to be arranged formalin and exports 6, in upper tower body 1 from bottom to up according to
Formalin is arranged in 12 side of The upper column plate of secondary setting packing layer 11, formalin spray tube 7 and several The upper column plates 12, the top
Pipe 13 is supplemented, is respectively provided with float valve, weir plate 211 and deflector 212 in The upper column plate 12 and lower column plate 21, upper 1 the top of tower body is set
Set waste gas outlet 8.
The absorption tower of the production formalin and ureaformaldehyde pre-concentration liquid is in use, formaldehyde gas is sent into from formaldehyde gas import 3
Lower tower body 2, formaldehyde gas are delivered up, while being opened in the downward tower body 2 of aqueous solution of urea supplement pipe 22 and being mended aqueous solution of urea, urine
Plain aqueous solution flows on lower column plate 21, aqueous solution of urea layer is formed on lower column plate 21 by weir plate 211, formaldehyde pneumatic jack opens lower tower
Float valve on plate 21, the aqueous solution of urea layer on lower column plate 21 absorb formaldehyde gas by aqueous solution of urea, it is pre- to form ureaformaldehyde
Contracting liquid guarantees the temperature of formaldehyde gas with formalin is sprayed in the downward tower body 2 of formalin spray tube 7 in tower body 2 at present,
Prevent formaldehyde gas from polymerizeing in lower tower body 2, unabsorbed formaldehyde gas enters upper tower body 1 by 5 intake pipe 51 of tilt clapboard, and
It is uniformly distributed formaldehyde gas by cloth gas hood 511, formaldehyde gas enters packing layer 11, while the formalin spray tube 7 of upper tower body 1
Formalin is sprayed, packing layer 11 is likewise entered, carries out preliminary formaldehyde gas initial absorption, while formalin supplement pipe 13 is upward
Formalin is supplemented in tower body 1, formalin flows in The upper column plate 12, and it is molten to form formaldehyde in The upper column plate 12 by weir plate 211
Liquid layer, residual formaldehyde gas continue to rise, and the float valve in The upper column plate 12 are broken through, into the formalin layer in The upper column plate 12, into one
Step absorbs formaldehyde gas, and remaining exhaust gas is discharged from waste gas outlet 8 after absorption, while formalin can guarantee the temperature of formaldehyde gas,
Prevent formaldehyde gas from polymerizeing in packing layer 11, the formalin for absorbing formaldehyde gas can flow downwardly on tilt clapboard 5, and can be straight
It connects 6 discharge collection of formalin outlet or formalin is back in lower tower body 2 by overflow pipe 52, and flow to Xia Ta
On the lower column plate 21 of body 2, and aqueous solution of urea hybrid reaction forms ureaformaldehyde preshrunk liquid, and last ureaformaldehyde preshrunk liquid is from ureaformaldehyde preshrunk
It collects liquid outlet 4.Above description is the explanation to the utility model, is not the restriction to utility model, and the utility model is limited
Fixed range is referring to claim, and without prejudice to the basic structure of the utility model, the utility model can appoint
The modification of what form.
Claims (3)
1. a kind of absorption tower for producing formalin and ureaformaldehyde pre-concentration liquid, it is characterised in that: including upper tower body (1) and lower tower body
(2), lower tower body (2) the side setting import of formaldehyde gas (3), lower end is arranged ureaformaldehyde preshrunk liquid and exports (4), in lower tower body (2)
Several lower column plates (21) are set, lower tower body (2) is located at lower column plate (21) side setting aqueous solution of urea topmost and supplements pipe (22),
The upper tower body (1) and lower tower body (2) are separated by tilt clapboard (5), and air inlet pipe (51) and overflow are arranged on tilt clapboard (5)
It manages (52), upper tower body (1), which is located at tilt clapboard (5) low spot, is arranged formalin outlet (6), in upper tower body (1) from bottom to up
Packing layer (11), formalin spray tube (7) and several The upper column plates (12) are set gradually, The upper column plate (12) side of the top is set
Formalin supplement pipe (13) is set, is respectively provided with float valve, weir plate (211) and water conservancy diversion on the The upper column plate (12) and lower column plate (21)
Waste gas outlet (8) are arranged in plate (212), upper tower body (1) the top.
2. the absorption tower of production formalin and ureaformaldehyde pre-concentration liquid according to claim 1, it is characterised in that: under described
Formalin spray is also provided on position in tower body (2) under the lowermost between column plate (21) and formaldehyde gas import (3)
It manages (7).
3. it is according to claim 1 production formalin and ureaformaldehyde pre-concentration liquid absorption tower, it is characterised in that: inclination every
Plate (5) is located at setting gas distribution pipe (511) on air inlet pipe (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821541630.XU CN209254436U (en) | 2018-09-20 | 2018-09-20 | A kind of absorption tower producing formalin and ureaformaldehyde pre-concentration liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821541630.XU CN209254436U (en) | 2018-09-20 | 2018-09-20 | A kind of absorption tower producing formalin and ureaformaldehyde pre-concentration liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209254436U true CN209254436U (en) | 2019-08-16 |
Family
ID=67553180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821541630.XU Active CN209254436U (en) | 2018-09-20 | 2018-09-20 | A kind of absorption tower producing formalin and ureaformaldehyde pre-concentration liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209254436U (en) |
-
2018
- 2018-09-20 CN CN201821541630.XU patent/CN209254436U/en active Active
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