CN107661688A - One kind is used for13The tail gas collecting device of C urea synthesizings - Google Patents
One kind is used for13The tail gas collecting device of C urea synthesizings Download PDFInfo
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- CN107661688A CN107661688A CN201610601890.0A CN201610601890A CN107661688A CN 107661688 A CN107661688 A CN 107661688A CN 201610601890 A CN201610601890 A CN 201610601890A CN 107661688 A CN107661688 A CN 107661688A
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- absorption tower
- tail gas
- collecting device
- absorption
- alkali liquor
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- 239000004202 carbamide Substances 0.000 title claims abstract description 20
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract description 4
- 230000002194 synthesizing effect Effects 0.000 title abstract 2
- 238000010521 absorption reaction Methods 0.000 claims abstract description 78
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000003513 alkali Substances 0.000 claims abstract description 38
- 239000002250 absorbent Substances 0.000 claims abstract description 14
- 230000002745 absorbent Effects 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 18
- 230000015572 biosynthetic process Effects 0.000 claims description 14
- 238000003786 synthesis reaction Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 45
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 18
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 18
- 229910021529 ammonia Inorganic materials 0.000 abstract description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 241000590002 Helicobacter pylori Species 0.000 description 6
- 229940037467 helicobacter pylori Drugs 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- XSQUKJJJFZCRTK-OUBTZVSYSA-N Urea-13C Chemical compound N[13C](N)=O XSQUKJJJFZCRTK-OUBTZVSYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 2
- 208000018522 Gastrointestinal disease Diseases 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 208000010643 digestive system disease Diseases 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 208000018685 gastrointestinal system disease Diseases 0.000 description 2
- 208000015181 infectious disease Diseases 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 241001522296 Erithacus rubecula Species 0.000 description 1
- 208000007882 Gastritis Diseases 0.000 description 1
- 208000005577 Gastroenteritis Diseases 0.000 description 1
- 206010019375 Helicobacter infections Diseases 0.000 description 1
- 208000005718 Stomach Neoplasms Diseases 0.000 description 1
- 208000007107 Stomach Ulcer Diseases 0.000 description 1
- 108010046334 Urease Proteins 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 208000000718 duodenal ulcer Diseases 0.000 description 1
- 201000006549 dyspepsia Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 206010017758 gastric cancer Diseases 0.000 description 1
- 201000005917 gastric ulcer Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000035479 physiological effects, processes and functions Effects 0.000 description 1
- 238000012134 rapid urease test Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 201000011549 stomach cancer Diseases 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to one kind to be used for13The tail gas collecting device of C urea synthesizings, including：For absorbing the absorption tower (100) of hydrogen sulfide gas, the accommodating chamber (200) for accommodating alkali lye, alkali lye circulation line component (300), the exhaust pipe component (400) for providing power for exhaust gas flow for circulating alkali lye；The tail gas collecting device of the present invention, air blower keep maintaining negative pressure in absorption tower, and the tail gas flowed from bottom to top is generated vulcanized sodium and is dissolved in water by the alkali liquor absorption hydrogen sulfide of circulated sprinkling, and residual gas flows through ammonia absorbent of the main body for activated carbon；Conveniently, whole process hydrogen sulfide and ammonia absorption efficiency are more than 99% for simple to operate, plant maintenance.
Description
Technical Field
The invention relates to chemical equipment, in particular to a chemical equipment for chemical equipment13A tail gas collecting device for C-urea synthesis.
Background
Helicobacter pylori (Hp), a unipolar, multiflagellated, blunt-ended, helically-curved bacterium, was first discovered in 1982 by Barry marshall (Barry j. marshall) and robin warren (j. robinwarren), both of which thus received the 2005 nobel prize in physiology or medicine. Subsequent studies have confirmed that this bacterium does cause gastritis, chronic gastroenteritis, gastric ulcer, duodenal ulcer, non-ulcer dyspepsia and partial gastric cancer, helicobacter pylori has therefore received attention from the medical community, and the relationship between helicobacter pylori infection and gastrointestinal disease has been a hot spot and difficulty in global gastrointestinal disease infection studies for over 30 years.
The current methods for detecting and identifying helicobacter pylori (Hp) mainly comprise a rapid urease test, a helicobacter pylori (Hp) antibody test,13C or14C, expiration test, pathological tissue section, bacterial culture and the like. Wherein,13c or14C, the accuracy of the breath test is the highest and reaches more than 95-96%. Carbon [ C ]13C-Urea is produced13The C breath test detection reagent needs raw material medicines, and the scale preparation technology and the process thereof have difficulties.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provide a device for13A tail gas collecting device for C-urea synthesis, and solves the problem13The tail gas containing ammonia gas and hydrogen sulfide generated in the synthesis process of the C-urea has the problems of large pollution, difficult collection and the like.
In order to solve the problems, the invention provides the following technical scheme: provide a device for13The tail gas collection device for C-urea synthesis comprises:
an absorption tower, at least a part of the interior of which is filled with a filler; arranging an air inlet on the tower wall of the absorption tower, arranging an air outlet at the top end of the absorption tower, and positioning the air inlet below the filler; a sprayer for spraying alkali liquor is also arranged in the absorption tower, and the sprayer is positioned above the filler;
the accommodating cavity is arranged below the absorption tower and communicated with the bottom end of the absorption tower;
the alkali liquor circulating pipeline assembly is arranged outside the absorption tower and comprises a circulating pump for providing alkali liquor circulating power; one end of the alkali liquor circulating pipeline assembly is connected with the sprayer, and the other end of the alkali liquor circulating pipeline assembly is communicated with the accommodating cavity;
the suction pipeline assembly is arranged outside the absorption tower and comprises a blower for providing negative pressure inside the absorption tower; one end of the air pumping pipeline assembly is connected with the air outlet, and the other end of the air pumping pipeline assembly is communicated with an ammonia absorbent.
In the invention provided for13In the tail gas collecting device for C-urea synthesis, a liquid inlet is also formed in the tower wall of the absorption tower, and the alkali liquor circulating pipeline assembly penetrates through the liquid inlet to be connected with the sprayer.
In the invention provided for13In the tail gas collecting device for C-urea synthesis, a demister is also arranged inside the absorption tower and is positioned between the sprayer and the gas outlet.
In the invention provided for13In the tail gas collecting device for C-urea synthesis, a first pressure sensor is arranged on the air inlet, a second pressure sensor is arranged on a pipeline at one air inlet end of the air blower, and the pressure at the first pressure sensor is greater than the pressure at the second pressure sensor.
In the invention provided for13The tail gas collecting device for C-urea synthesis further comprises a controller, and the controller is electrically connected with the first pressure sensor, the second pressure sensor, the circulating pump and the blower respectively.
In the invention provided for13The tail gas collecting device for the C-urea synthesis further comprises an ammonia gas absorption barrel for containing the ammonia gas absorbent; the ammonia absorption barrel comprises a bottom opening and a top opening, the bottom opening is connected with the air pumping pipeline assembly, and the top opening is communicated with the atmosphere.
In the inventionFor use in13In the tail gas collecting device for C-urea synthesis, a liquid exchange port is formed in the accommodating cavity, and a cover plate matched with the liquid exchange port is detachably and hermetically connected with the liquid exchange port through a flange.
In the invention provided for13In the tail gas collecting device for C-urea synthesis, the accommodating cavity is detachably and hermetically connected with the bottom end of the absorption tower through a flange.
In the invention provided for13In the tail gas collecting device for C-urea synthesis, an extension pipeline connected with a gas inlet is arranged in the absorption tower, and an opening of the extension pipeline faces downwards.
The implementation of the invention has the following beneficial effects: according to the tail gas collecting device, the blower maintains negative pressure in the absorption tower, tail gas flowing from bottom to top is absorbed by the circularly sprayed alkali liquor to generate sodium sulfide which is dissolved in water, and the rest gas flows through the ammonia gas absorbent with the main body being activated carbon; the operation is simple, the equipment maintenance is convenient, and the absorption efficiency of the hydrogen sulfide and the ammonia gas in the whole process is over 99 percent.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a front view of a preferred embodiment of an exhaust collection device according to the present invention;
FIG. 2 is a right side view of a preferred embodiment of the exhaust collection device of the present invention;
FIG. 3 is a left side view of the preferred embodiment of the exhaust collection device of the present invention;
FIG. 4 is a top view of the exhaust collection device of FIG. 3;
FIG. 5 is a rear view of the preferred embodiment of the exhaust collection device of the present invention.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
13The main component of the breath test reagent used in the C breath test is13C-urea, i.e. use13C marks carbon element in urea, also called carbon [ C ]13C-Urea [ sic ]13CO(NH2)2Or carbon [ C ]13C-Urea, carried thereby13C is12An isotope of C. If helicobacter pylori (Hp) is present in the stomach of a patient, the urease produced will break down the urea into13CO2Checking in the expired air of the patient with a matching instrument13C, the infection of helicobacter pylori (Hp) can be diagnosed. Comprises13C-labelled carbon [13C-urea large-scale preparation technology and process are always industrial difficulties. The invention is based on the methods of Franz R.A. and Applegath F13C-Urea production, the basic principle is described in organic chemistry (1961), volume 26, pages 2604-2605, and the chemical equation of the reaction is as follows:
13CO+S+2NH3→H2N13CONH2+H2S
the generated hydrogen sulfide gas and the unreacted ammonia gas exist in the reaction system, so that the tail gas treatment in the reaction system becomes a difficult point to overcome.
The main innovation point of the invention is that the sprayed alkali liquor is used for absorbing hydrogen sulfide, and the absorbent with the main body of activated carbon is used for absorbing ammonia gas; wherein, the sprayed alkali liquor flows circularly from top to bottom by using a circulating pump, the tail gas fully absorbs the hydrogen sulfide from bottom to top, the residual gas flows through an ammonia absorbent, and the ammonia absorbent is replaced in time, thereby realizing the continuous operation of a continuous system.
Fig. 1 shows a front view structure of a preferred embodiment of the tail gas collection device of the present invention, as shown in fig. 1, the tail gas collection device of the present embodiment mainly comprises an absorption tower 100, an accommodating chamber 200, a lye circulation pipeline assembly 300 (see fig. 2), and an air extraction pipeline assembly 400. Wherein, hold the cavity 200 and hold and contain the alkali lye that is used for absorbing the hydrogen sulfide, the alkali lye flows from top to bottom in the absorption tower 100 under the effect of alkali lye circulation pipeline subassembly 300, accomplishes the absorption of hydrogen sulfide, and the end of air exhaust pipeline subassembly 400 is connected with ammonia absorbent 501, makes gas and ammonia absorbent 501 contact the absorption of completion ammonia under the condition of maintaining the interior negative pressure of absorption tower 100.
Preferably, the present embodiment is provided with a first pressure sensor 110 mounted on the air inlet 102, and a second pressure sensor 120 mounted on an air inlet end pipeline of the blower 401, wherein the pressure at the first pressure sensor 110 is greater than the pressure at the second pressure sensor 120.
Preferably, the containing cavity 200 is provided with a liquid changing port 201, a cover plate 202 adapted to the liquid changing port 201 is detachably and hermetically connected with the liquid changing port 201 through a flange, and the alkali liquor in the containing cavity 200 can be periodically changed through the liquid changing port 201. The receiving chamber 200 is detachably and hermetically connected to the bottom end of the absorption tower 100 by a flange. Of course, both the gas outlet 103 and the liquid inlet 105 have a flange structure for ease of installation. The flange structure at the liquid inlet 105 ensures that the connection between the absorption tower 100 and the alkali liquor circulating pipeline assembly 300 is convenient to disassemble, and the sprayer 104 is convenient to maintain; the top end of the absorption tower 100 is provided with a detachable flange structure, and the flange structure of the bottom end of the absorption tower 100 is combined, so that the absorption tower 100 can be completely detached, and the filling material 101 and the demister 106 can be cleaned and maintained conveniently.
FIG. 2 is a right view showing the structure of the preferred embodiment of the exhaust gas collecting device of the present invention, as shown in FIG. 2, the absorption tower 100 has a cylindrical main body, at least a portion of the interior of the absorption tower is filled with a filling material 101, and the filling material 101 is made of a material having a large hollow structure, so that it has a large specific surface area for the chemical combination reaction between the alkali solution and hydrogen sulfide; a sprayer 104 is arranged above the filler 101, the alkali liquor absorbing the hydrogen sulfide is sprayed down from the sprayer 104, so that the alkali liquor can be uniformly dispersed, and a large absorption area is formed on the surface of the hollow structure of the filler 101 in the process that the alkali liquor flows down along the filler 101, so that the hydrogen sulfide in the tail gas can fully contact and react with the alkali liquor; the absorption tower 100 comprises an air inlet 102 and an air outlet 103, wherein the air inlet 102 is arranged on the tower wall of the absorption tower 100 and is positioned below the filling material 101, and the air outlet 103 is arranged at the top end of the absorption tower 100, namely, the tail gas flows from bottom to top in the absorption tower 100 and flows in the direction opposite to the flowing direction of the alkali liquor, so that the absorption efficiency of the hydrogen sulfide is further improved. Through the structural design, the absorption efficiency of the hydrogen sulfide is over 99 percent within the limited length of the absorption tower 100. Preferably, the absorption tower 100 is further provided with a liquid inlet 105 on the tower wall, and the lye circulating pipeline assembly 300 is connected with the sprayer 104 through the liquid inlet 105.
A receiving chamber 200 provided below the absorption tower 100 and communicating with the bottom end of the absorption tower 100; the alkali liquor circulating pipeline assembly 300 is arranged outside the absorption tower 100 and comprises a circulating pump 301 for providing alkali liquor circulating power and relevant pipelines for connection, and the pipelines can be collectively called as alkali liquor circulating pipelines; one end of the alkali liquor circulating pipeline assembly 300 is connected with the sprayer 104, and the other end is communicated with the accommodating cavity 200. The alkali liquor sprayed from the sprayer 104 flows down along the filling material 101 and then falls into the accommodating cavity 200, and returns to the sprayer 104 along the pipeline under the pumping action of the circulating pump 301, and the alkali liquor flows from top to bottom in the absorption tower 100 and flows from bottom to top in the alkali liquor circulating pipeline, so that the circulating flow of the alkali liquor is realized, and the guarantee is provided for the absorption of hydrogen sulfide.
A suction line assembly 400 installed outside the absorption tower 100, including a blower 401 for providing a negative pressure inside the absorption tower 100, and related lines for connection, which may be collectively referred to as a suction line; one end of the air pumping pipeline assembly 400 is connected with the air outlet 103, and the other end is communicated with an ammonia gas absorbent 501.
Fig. 3 shows a left side view structure of a preferred embodiment of the exhaust gas collecting device of the present invention, fig. 4 shows a top view structure of the exhaust gas collecting device in fig. 3, and with reference to fig. 3 and 4, the exhaust gas collecting device of the present embodiment further includes a controller 600, and the controller 600 is electrically connected to the first pressure sensor 110, the second pressure sensor 120, the circulating pump 301, and the blower 401, respectively. The pressure values measured by the first pressure sensor 110 and the second pressure sensor 120 can directly monitor the negative pressure condition in the absorption tower 100, the circulation speed of the alkali liquor can be ensured by controlling the circulation pump 301, the treatment speed of the tail gas can be ensured by controlling the blower 401, and the absorption efficiency of the hydrogen sulfide and the ammonia gas can be ensured by coordinating all parameters.
Fig. 5 shows a rear view of the preferred embodiment of the tail gas collecting device of the present invention, and as shown in fig. 5, a demister 106 is further disposed inside the absorption tower 100, and the demister 106 is located between the sprayer 104 and the gas outlet 103. Preferably, an extension pipe 130 (see fig. 1) connected to the gas inlet 102 is disposed in the absorption tower 100, and an opening of the extension pipe 130 faces downward, so that the exhaust gas entering the absorption tower 100 is sprayed downward, and the exhaust gas can have a longer residence time in the absorption tower 100. The tail gas collecting device also comprises an ammonia gas absorption barrel 500 for containing an ammonia gas absorbent 501; the ammonia gas absorption barrel 500 includes a bottom opening connected to the suction line assembly 400 and a top opening communicating with the atmosphere. Since the ammonia absorbent 501 needs to be replaced periodically, the ammonia absorption barrel 500 can be used to greatly facilitate the operation, and only the pipeline connecting the ammonia absorption barrel 500 and the blower 401 needs to be removed and then a new ammonia absorption barrel 500 is replaced. In addition, the pipe connecting the ammonia gas absorption barrel 500 and the blower 401 is preferably a hose 402, and a new ammonia gas absorption barrel 500 can be easily connected without removing the old ammonia gas absorption barrel 500.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. Is used for13The tail gas collection device of C-urea synthesis, its characterized in that includes:
an absorption tower (100) at least a part of the inside of which is filled with a filler (101); an air inlet (102) is arranged on the tower wall of the absorption tower (100), an air outlet (103) is arranged at the top end of the absorption tower (100), and the air inlet (102) is positioned below the filling material (101); a sprayer (104) for spraying alkali liquor is also arranged in the absorption tower (100), and the sprayer (104) is positioned above the filling material (101);
a housing chamber (200) provided below the absorption tower (100) and communicating with a bottom end of the absorption tower (100);
the alkali liquor circulating pipeline assembly (300) is arranged outside the absorption tower (100) and comprises a circulating pump (301) for providing alkali liquor circulating power; one end of the alkali liquor circulating pipeline component (300) is connected with the sprayer (104), and the other end of the alkali liquor circulating pipeline component is communicated with the accommodating cavity (200);
a suction line assembly (400) installed outside the absorption tower (100) and including a blower (401) for providing a negative pressure inside the absorption tower (100); one end of the air pumping pipeline assembly (400) is connected with the air outlet (103), and the other end of the air pumping pipeline assembly is communicated with an ammonia gas absorbent (501).
2. The tail gas collecting device of claim 1, wherein a liquid inlet (105) is further disposed on the tower wall of the absorption tower (100), and the lye circulating pipeline assembly (300) passes through the liquid inlet (105) and is connected with the sprayer (104).
3. The tail gas collecting device according to claim 1, wherein a demister (106) is further disposed inside the absorption tower (100), and the demister (106) is located between the sprayer (104) and the gas outlet (103).
4. The exhaust gas collecting device according to claim 1, wherein a first pressure sensor (110) is installed on the air inlet (102), a second pressure sensor (120) is installed on an air inlet end pipeline of the blower (401), and the pressure at the first pressure sensor (110) is greater than the pressure at the second pressure sensor (120).
5. The exhaust gas collection device according to claim 1, further comprising a controller (600), wherein the controller (600) is electrically connected to the first pressure sensor (110), the second pressure sensor (120), the circulation pump (301), and the blower (401), respectively.
6. The exhaust gas collection device according to claim 1, further comprising an ammonia gas absorption barrel (500) for containing the ammonia gas absorbent (501); the ammonia gas absorption barrel (500) comprises a bottom opening and a top opening, the bottom opening is connected with the air pumping pipeline assembly (400), and the top opening is communicated with the atmosphere.
7. The tail gas collecting device according to claim 1, wherein the accommodating cavity (200) is provided with a liquid exchange port (201), and a cover plate (202) adapted to the liquid exchange port (201) is detachably and hermetically connected with the liquid exchange port (201) through a flange.
8. The exhaust gas collection device according to claim 1, wherein the accommodating chamber (200) is detachably and hermetically connected with the bottom end of the absorption tower (100) through a flange.
9. The exhaust gas collection device according to claim 1, wherein an extension pipe (130) connected to the gas inlet (102) is disposed in the absorption tower (100), and the opening of the extension pipe (130) faces downward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610601890.0A CN107661688A (en) | 2016-07-27 | 2016-07-27 | One kind is used for13The tail gas collecting device of C urea synthesizings |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610601890.0A CN107661688A (en) | 2016-07-27 | 2016-07-27 | One kind is used for13The tail gas collecting device of C urea synthesizings |
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| CN107661688A true CN107661688A (en) | 2018-02-06 |
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| CN201610601890.0A Pending CN107661688A (en) | 2016-07-27 | 2016-07-27 | One kind is used for13The tail gas collecting device of C urea synthesizings |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052134A (en) * | 2019-05-09 | 2019-07-26 | 北京京仪自动化装备技术有限公司 | A kind of regulating system of waste gas treatment equipment system negative pressure |
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| US6280698B1 (en) * | 1998-11-20 | 2001-08-28 | Institut Francais Du Petrole | Removal of by-products in method for processing a gas containing hydrogen sulfide and sulfur dioxide |
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| CN202569943U (en) * | 2012-05-29 | 2012-12-05 | 河北科技大学 | Device for treating hydrogen sulfide in exhaust gas |
| CN105289237A (en) * | 2015-12-09 | 2016-02-03 | 上海市政工程设计研究总院（集团）有限公司 | Intelligent compound malodorous gas treatment method with super-high efficiency |
| CN105363330A (en) * | 2014-08-31 | 2016-03-02 | 天津渤大硫酸工业有限公司 | Sulfuric acid tail gas desulphurization device |
| CN205164469U (en) * | 2015-09-29 | 2016-04-20 | 天津汇禾尚志科技发展有限公司 | Sewage treatment plant waste gas treatment system |
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Application publication date: 20180206 |