CN113134332A - Catalyst automatic cycle type photocatalysis nitrogen fixation reactor - Google Patents
Catalyst automatic cycle type photocatalysis nitrogen fixation reactor Download PDFInfo
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- CN113134332A CN113134332A CN202110538460.XA CN202110538460A CN113134332A CN 113134332 A CN113134332 A CN 113134332A CN 202110538460 A CN202110538460 A CN 202110538460A CN 113134332 A CN113134332 A CN 113134332A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 78
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 29
- 230000001699 photocatalysis Effects 0.000 title claims abstract description 27
- 238000007146 photocatalysis Methods 0.000 title claims description 4
- 238000011084 recovery Methods 0.000 claims abstract description 42
- 238000005273 aeration Methods 0.000 claims abstract description 19
- 230000007246 mechanism Effects 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 11
- 238000005516 engineering process Methods 0.000 abstract description 7
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000013032 photocatalytic reaction Methods 0.000 description 3
- 239000011949 solid catalyst Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005288 electromagnetic effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/08—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
- B01J19/12—Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor employing electromagnetic waves
- B01J19/122—Incoherent waves
- B01J19/123—Ultraviolet light
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/005—Separating solid material from the gas/liquid stream
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/20—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium
- B01J8/22—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/026—Preparation of ammonia from inorganic compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
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- Health & Medical Sciences (AREA)
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- Physics & Mathematics (AREA)
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Abstract
The invention discloses a catalyst automatic circulation type photocatalytic nitrogen fixation reactor, which comprises a reactor shell, wherein an air inlet is formed in the lower end outside the reactor shell, an aeration device is arranged at the bottom inside the reactor shell and is connected with the air inlet, a middle shaft extending along the height direction of the reactor shell is arranged on the aeration device, at least one group of catalyst recovery devices are sleeved on the middle shaft, a sleeve is further sleeved on the upper end of the middle shaft, the upper end of the sleeve extends out of the reactor shell and is connected with a driving device, a plurality of ultraviolet lamp tubes are further arranged inside the reactor shell around the inner side wall of the reactor shell, coils are wound on the catalyst recovery devices, and the coils and the ultraviolet lamp tubes are electrified. According to the automatic catalyst circulation type photocatalytic nitrogen fixation reactor, the catalyst recovery device capable of being automatically opened and closed is arranged in the reactor, so that automatic recovery and cyclic utilization of the catalyst are realized, convenience and rapidness are realized, the problem that the catalyst is difficult to recover in application of a photocatalytic nitrogen fixation technology is solved, and the production efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of photocatalytic nitrogen fixation, and relates to a catalyst automatic circulation type photocatalytic nitrogen fixation reactor.
Background
Ammonia is an important raw material which is indispensable in industrial and agricultural production in modern society. The photocatalysis nitrogen fixation (synthesis of ammonia) can be carried out at normal temperature and normal pressure, the process is simple, the raw materials are cheap and easy to obtain, the cost is low, and the method is a new environment-friendly synthesis ammonia technology. However, the photocatalytic nitrogen fixation technology has the problem that the catalyst is difficult to recover in practical application, and the application and the development of the technology are severely limited. Aiming at the problem of catalyst recovery, the conventional solution is to fix the catalyst on some carriers, such as activated carbon, zeolite, etc., but the solution of the method can reduce the contact area between the catalyst and reactants while solving the problem of catalyst recovery, and then the photocatalytic reaction efficiency is reduced.
Along with the aggravation of energy crisis and environmental pollution, the photocatalytic nitrogen fixation technology has a good development prospect, and if the problem of recycling the catalyst in the photocatalytic nitrogen fixation process can be solved on the premise of not influencing the photocatalytic reaction efficiency, the method has great significance for promoting the development and application of the technology in industrial production.
Disclosure of Invention
The invention aims to provide a catalyst automatic circulation type photocatalytic nitrogen fixation reactor, which solves the problem that a catalyst is difficult to recycle in the application of a photocatalytic nitrogen fixation technology.
The technical scheme adopted by the invention is that the automatic catalyst circulation type photocatalytic nitrogen fixation reactor comprises a reactor shell, wherein an air inlet is formed in the lower end outside the reactor shell, an aeration device is arranged at the bottom inside the reactor shell and is connected with the air inlet, a middle shaft extending along the height direction of the reactor shell is fixedly connected onto the aeration device, at least one group of catalyst recovery devices are arranged on the middle shaft in a sleeved mode, a sleeve is further sleeved at the upper end of the middle shaft, the upper end of the sleeve extends out of the reactor shell and is connected with a driving device, a plurality of ultraviolet lamp tubes are further arranged in the reactor shell around the inner side wall of the sleeve, coils are wound on the catalyst recovery devices, and the coils and the ultraviolet lamp tubes are electrified.
The present invention is also characterized in that,
the catalyst recovery device comprises a spring sleeved on a middle shaft, fixing rings are further sleeved on the middle shaft above and below the spring, and a plurality of groups of four-bar mechanisms are uniformly arranged around the middle shaft;
if at least two groups of catalyst recovery devices are sleeved on the middle shaft from bottom to top, one end of each of the four-bar mechanisms of the catalyst recovery device positioned above and the catalyst recovery device positioned below is connected to the same fixed ring;
the coil is wound on the four-bar mechanism.
The four-bar mechanism comprises a bar ACF, a bar BDC, a bar EF and a bar DE, wherein the F end of the bar EF is hinged to the F end of the bar ACF, the E end of the bar EF is hinged to the E end of the bar DE, the D end of the bar DE is hinged to the D point of the bar BDC, the C point of the bar BDC is hinged to the C point of the bar ACF, and the A end of the bar ACF and the B end of the bar BDC are respectively hinged to the fixing rings above and below the spring of the corresponding catalyst recovery device.
Aeration equipment includes a cross pipe, the cross center that uses the cross pipe is provided with the concentric annular pipe of multiunit as the centre of a circle, the diameter that is located outermost annular pipe is the same with the distance between the both ends of cross pipe, every group annular pipe all communicates with the cross pipe, a plurality of aeration holes have evenly been seted up to cross pipe and annular pipe upper surface, the cross center of cross pipe is directly over in air intlet, and cross pipe and air intlet pass through the pipeline intercommunication, the top of the cross center department of cross pipe still is provided with fixed sleeve, the axis lower extreme inserts in the fixed sleeve.
The driving device comprises a rack arranged on the outer surface of the sleeve, a gear is meshed with the rack extending out of the top of the reactor shell at the upper end of the sleeve, the gear is fixedly connected with a stepping motor, the gear is fixed on an output shaft of the stepping motor, and the stepping motor is fixed at the top of the reactor shell.
The reactor shell comprises a cylinder body, the upper end and the lower end of the cylinder body are respectively provided with a lower oval end socket and an upper flat plate end socket, an air inlet is arranged at the middle position of the bottom of the lower oval end socket, and the lower oval end socket and the upper flat plate end socket are respectively provided with a liquid inlet and outlet pipe and an air outlet.
And a catalyst filtering layer is arranged in the liquid inlet and outlet pipe.
The upper end and the lower end in the reactor shell are provided with annular fixed plates around the side wall, and the two ends of the ultraviolet lamp tube are respectively fixed on the upper fixed plate and the lower fixed plate.
The invention has the beneficial effects that:
(1) according to the invention, the catalyst recovery device which can be opened and closed through electric control is additionally arranged in the reactor, the automatic recovery of the catalyst is realized by utilizing the electromagnetic effect, the recovered catalyst is put into the reaction system again for secondary utilization by means of medium flow in the reactor, the automatic recovery and cyclic utilization of the catalyst are realized on the premise of not influencing the contact area of the catalyst and reactants, and the reactor is convenient and fast;
(2) the multi-group four-bar mechanism is connected to the middle shaft through the hinge to form a multi-layer recovery structure, so that the effective recovery of the catalyst is ensured, and the catalyst recovery effect is further improved by adding the catalyst filter layer; in addition, the catalyst recovery device can determine the length of the four-bar mechanism rod and the layer number of the catalyst recovery device according to the size of the reactor, and is flexible, convenient and wide in application range;
(3) the catalyst recovery device is opened and closed by combining the compression spring, the gear, the rack and the stepping motor, and has simple structure and convenient operation;
(4) the catalyst recovery device is positioned in the reactor and can be automatically opened and closed without influencing the flow and reaction of gas, liquid and solid phases in the reactor.
Drawings
FIG. 1 is a half sectional view of a photocatalytic nitrogen fixation reactor of the present invention of the automatic catalyst circulation type;
FIG. 2 is a schematic view of the internal structure of a photocatalytic nitrogen fixation reactor of the present invention, in which a catalyst is automatically circulated;
FIG. 3 is a top view of the interior of a photocatalytic nitrogen fixation reactor of the present invention of the automatic catalyst circulation type;
FIG. 4 is a schematic structural diagram of a catalyst recovery device in a photocatalytic nitrogen fixation reactor with automatic catalyst circulation according to the present invention;
FIG. 5 is a schematic view showing a connection structure of a fixed ring and a four-bar mechanism in the automatic catalyst circulation type photocatalytic nitrogen fixation reactor according to the present invention;
FIG. 6 is a schematic structural diagram of a four-bar mechanism in the automatic catalyst circulation type photocatalytic nitrogen fixation reactor according to the present invention;
FIG. 7 is a schematic structural view of an aeration apparatus in a photocatalytic nitrogen fixation reactor of the automatic catalyst circulation type according to the present invention;
FIG. 8 is a schematic structural diagram of a driving device in a photocatalytic nitrogen fixation reactor with an automatic catalyst circulation function according to the present invention.
In the figure, 1, an air inlet, 2, an aeration device, 3, a middle shaft, 4, a catalyst recovery device, 5, a sleeve, 6, a driving device, 7, a fixing plate, 8, an ultraviolet lamp tube and 9, a coil;
1-1 part of a cylinder body, 1-2 parts of a lower oval end socket, 1-3 parts of an upper flat end socket, 1-4 parts of an air outlet and 1-5 parts of a liquid inlet and outlet pipe;
2-1, a cross round pipe, 2-2, aeration holes, 2-3, an annular round pipe and 2-4, a fixed sleeve;
4-1, a spring, 4-2, a fixed ring and 4-3, a four-bar mechanism;
6-1 rack, 6-2 gear, 6-3 stepping motor.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention relates to a catalyst automatic circulation type photocatalytic nitrogen fixation reactor, which has a structure shown in figures 1-3 and comprises a reactor shell, wherein an air inlet 1 is formed in the lower end outside the reactor shell, an aeration device 2 is arranged at the bottom inside the reactor shell, the aeration device 2 is connected with the air inlet 1, a middle shaft 3 extending along the height direction of the reactor shell is arranged on the aeration device 2, at least one group of catalyst recovery devices 4 are sleeved on the middle shaft 3, a sleeve 5 is further sleeved at the upper end of the middle shaft 3, the upper end of the sleeve 5 extends out of the reactor shell and is connected with a driving device 6, a plurality of ultraviolet lamp tubes 8 are further arranged inside the reactor shell around the inner side wall of the reactor shell, a coil 9 is wound on the catalyst recovery device 4, and the coil 9 and the ultraviolet lamp tubes 8 are electrified.
The catalyst recovery device 4 comprises a spring 4-1 sleeved on the middle shaft 3, fixing rings 4-2 are further sleeved on the middle shaft 3 above and below the spring 4-1, and a plurality of groups of four-bar mechanisms 4-3 uniformly arranged around the middle shaft 3, wherein if a group of catalyst recovery devices 4 are arranged, two ends of each four-bar mechanism 4-3 are correspondingly hinged on the fixing rings 4-2 above and below the spring 4-1 respectively;
if at least two groups of catalyst recovery devices 4 are sleeved on the middle shaft 3 from bottom to top, one end of each of the four-bar mechanisms 4-3 of the catalyst recovery device 4 positioned above and the catalyst recovery device 4 positioned below is connected to the same fixed ring;
the coil 9 is wound on the four-bar linkage 4-3.
The four-bar mechanism 4-3 comprises a bar ACF, a bar BDC, a bar EF and a bar DE, wherein the end F of the bar EF is hinged to the end F of the bar ACF, the end E of the bar EF is hinged to the end E of the bar DE, the end D of the bar DE is hinged to the point D of the bar BDC, the point C of the bar BDC is hinged to the point C of the bar ACF, the end A of the bar ACF and the end B of the bar BDC are respectively hinged to the fixing rings 4-2 above and below the spring 4-1 of the corresponding catalyst recovery device 4, and the coil 9 is wound on the bar ACF, the bar BDC, the bar EF and the bar DE together.
The aeration device 2 comprises a cross round pipe 2-1, a plurality of groups of concentric circular round pipes 2-3 are arranged by taking the cross center of the cross round pipe 2-1 as the center of a circle, the diameter of the outermost circular round pipe 2-3 is the same as the distance between the two ends of the cross round pipe 2-1, each group of circular round pipes 2-3 is communicated with the cross round pipe 2-1, a plurality of aeration holes 2-2 are uniformly formed in the upper surfaces of the cross round pipe 2-1 and the circular round pipe 2-3, the cross center of the cross round pipe 2-1 is positioned right above the air inlet 1, the cross round pipe 2-1 is communicated with the air inlet 1 through a pipeline, a fixed sleeve 2-4 is further arranged above the cross center of the cross round pipe 2-1, and the lower end of the middle shaft 3 is inserted into the fixed sleeve 2-4.
The driving device 6 comprises a rack 6-1 arranged on the outer surface of the sleeve 5, a gear 6-2 is meshed on the rack 6-1 extending out of the top of the reactor shell at the upper end of the sleeve 5, the gear 6-2 is fixedly connected with a stepping motor 6-3, the gear 6-2 is fixed on an output shaft of the stepping motor 6-3, and the stepping motor 6-3 is fixed on the top of the reactor shell.
The reactor shell comprises a cylinder body 1-1, the upper end and the lower end of the cylinder body 1-1 are respectively provided with a lower oval end socket 1-2 and an upper flat plate end socket 1-3, an air inlet 1 is arranged at the middle position of the bottom of the lower oval end socket 1-2, and the lower oval end socket 1-2 and the upper flat plate end socket 1-3 are respectively provided with a liquid inlet and outlet pipe 1-5 and an air outlet 1-4.
A catalyst filtering layer is arranged in the liquid inlet and outlet pipe 1-5.
The upper end and the lower end in the reactor shell are provided with annular fixed plates 7 around the side wall, and the two ends of the ultraviolet lamp tube 8 are respectively fixed on the upper fixed plate 7 and the lower fixed plate 7.
The working process of the catalyst automatic circulation type photocatalytic nitrogen fixation reactor is as follows:
water and air (containing nitrogen) respectively enter the reactor from the liquid inlet and outlet pipes 1-5 and the air inlet 1, catalyst particles are suspended in the water, and the ultraviolet lamp tube 8 is electrified. Under the irradiation of the ultraviolet lamp tube 8, in the presence of catalyst particles, nitrogen in the air reacts with water to generate ammonia gas, and the ammonia gas is dissolved in the water to form ammonia water. When the concentration of ammonia water reaches saturation, air inlet is stopped, the ultraviolet lamp tube 8 is powered off, the stepping motor 6-3 drives the gear 6-2 to rotate, the gear 6-2 is meshed with the rack 6-1 to drive the rack 6-1 to move downwards, the sleeve 5 moves downwards along the central shaft 3, the lower end of the sleeve 5 pushes the fixing ring 4-2 at the uppermost layer, the spring 4-1 is compressed, the B end of the rod BDC in the four-bar mechanism 4-3 is subjected to upward acting force applied by the fixing ring 4-2 along the axis of the central shaft 3 to rotate clockwise around a D point, the DE is driven to rotate anticlockwise around the D point, the rod ACF rotates anticlockwise around the A point under the action of the fixing ring 4-2 and the rod BDC, the rod rotates clockwise around the F point until the DE and the EF rotate clockwise, and the four-bar mechanism is opened. After the four-bar mechanism 4-3 is opened, a coil 9 wound on the four-bar mechanism 4-3 is electrified, magnetic solid catalyst particles are adsorbed on the four-bar mechanism 4-3, and after the catalyst is completely recovered, ammonia water in the reactor is filtered by a catalyst filter layer in the liquid inlet and outlet pipe 1-5 and then is discharged from the liquid inlet and outlet pipe 1-5.
After the saturated ammonia water is discharged, water enters the reactor from the liquid inlet and outlet pipe 1-5, solid catalyst particles on the catalyst filter layer are recoiled and sent back to the reactor again, air enters the reactor through the air inlet 1, the coil 9 wound on the four-bar mechanism 4-3 is powered off, the solid catalyst particles adsorbed on the four-bar mechanism 4-3 fall into the water under the scouring action of the air and the water and are in a suspension state under the action of the air, after the catalyst is put in again, the stepping motor 6-1 drives the gear 6-2 to rotate, the gear 6-2 is meshed with the rack 6-1 to drive the rack 6-3 to move upwards, the sleeve 5 moves away from the fixed ring 4-2, the spring 4-1 in a compressed state begins to rebound, the elastic force of the spring 4-1 pushes the fixed ring 4-2 upwards, the B end of the rod BDC is acted by the fixing ring 4-2 to exert an acting force downwards along the axis of the middle shaft 3, the rod BDC rotates anticlockwise around a D point and then drives the rod DE to rotate clockwise around the D point, the rod ACF rotates clockwise around a point A under the action of the fixing ring 4-2 and the rod BDC, the rod EF rotates anticlockwise around a point F until the rod BDC is horizontal, so that the four-bar mechanism is close to the middle shaft 3, the catalytic recovery device 4 is retracted, the ultraviolet lamp tube 8 is electrified, and the photocatalytic reaction is carried out again in the reactor.
Claims (8)
1. A catalyst automatic circulation type photocatalysis nitrogen fixation reactor is characterized by comprising a reactor shell, an air inlet (1) is arranged at the lower end outside the reactor shell, an aeration device (2) is arranged at the inner bottom of the reactor shell, the aeration device (2) is connected with the air inlet (1), a middle shaft (3) extending along the height direction of the reactor shell is arranged on the aeration device (2), the middle shaft (3) is sleeved with at least one group of catalyst recovery devices (4), the upper end of the middle shaft (3) is also sleeved with a sleeve (5), the upper end of the sleeve (5) extends out of the reactor shell and is connected with a driving device (6), the reactor shell is internally provided with a plurality of ultraviolet lamp tubes (8) around the inner side wall of the reactor shell, the catalyst recovery device (4) is wound with a coil (9), and the coil (9) and the ultraviolet lamp tubes (8) are electrified.
2. The reactor of claim 1, wherein the catalyst recovery device (4) comprises a spring (4-1) sleeved on the central shaft (3), the central shaft (3) above and below the spring (4-1) is further sleeved with a fixing ring (4-2), and the reactor further comprises a plurality of groups of four-bar mechanisms (4-3) uniformly arranged around the central shaft (3), and if the catalyst recovery device (4) is arranged, two ends of the four-bar mechanisms (4-3) are correspondingly hinged above and below the spring (4-1) respectively and sleeved on the fixing ring (4-2) on the central shaft (3);
if at least two groups of catalyst recovery devices (4) are sleeved on the middle shaft (3) from bottom to top, one end of each of the four-bar mechanisms (4-3) of the catalyst recovery device (4) positioned above and the four-bar mechanism (4-3) of the catalyst recovery device (4) positioned below is connected to the same fixed ring (4-2);
the coil (9) is wound on the four-bar mechanism (4-3).
3. The photocatalytic nitrogen fixation reactor of the automatic circulation type of catalyst according to claim 2, characterized in that the four-bar mechanism (4-3) comprises a bar ACF, a bar BDC, a bar EF and a bar DE, the F end of the bar EF is hinged at the F end of the bar ACF, the E end of the bar EF is hinged at the E end of the bar DE, the D end of the bar DE is hinged at the D point of the bar BDC, the C point of the bar BDC is hinged at the C point of the bar ACF, the A end of the bar ACF and the B end of the bar BDC are hinged on the fixing rings (4-2) above and below the spring (4-1) of the corresponding catalyst recovery device (4), respectively.
4. The automatic catalyst circulation type photocatalytic nitrogen fixation reactor according to claim 1, wherein the aeration device (2) comprises a cross-shaped circular tube (2-1), a plurality of groups of concentric circular tubes (2-3) are arranged by taking the cross center of the cross-shaped circular tube (2-1) as a center of a circle, the diameter of the outermost circular tube (2-3) is the same as the distance between two ends of the cross-shaped circular tube (2-1), each group of circular tubes (2-3) is communicated with the cross-shaped circular tube (2-1), a plurality of aeration holes (2-2) are uniformly formed in the upper surfaces of the cross-shaped circular tube (2-1) and the circular tube (2-3), the cross center of the cross-shaped circular tube (2-1) is positioned right above the air inlet (1), the cross round pipe (2-1) is communicated with the air inlet (1) through a pipeline, a fixing sleeve (2-4) is further arranged above the cross center of the cross round pipe (2-1), and the lower end of the middle shaft (3) is inserted into the fixing sleeve (2-4).
5. The reactor of claim 1, wherein the driving device (6) comprises a rack (6-1) disposed on the outer surface of the sleeve (5), a gear (6-2) is engaged with the rack (6-1) extending from the top of the reactor housing at the upper end of the sleeve (5), the gear (6-2) is fixedly connected with a stepping motor (6-3), the gear (6-2) is fixed on the output shaft of the stepping motor (6-3), and the stepping motor (6-3) is fixed on the top of the reactor housing.
6. The reactor of claim 1, wherein the reactor housing comprises a cylinder (1-1), the upper end and the lower end of the cylinder (1-1) are respectively provided with a lower elliptical head (1-2) and an upper flat head (1-3), the air inlet (1) is arranged at the middle position of the bottom of the lower elliptical head (1-2), and the lower elliptical head (1-2) and the upper flat head (1-3) are respectively provided with a liquid inlet and outlet pipe (1-5) and an air outlet (1-4).
7. The reactor as claimed in claim 6, wherein a catalyst filter layer is disposed in the liquid inlet/outlet pipe (1-5).
8. The reactor according to claim 1, wherein the upper and lower ends of the reactor housing are provided with annular fixing plates (7) around the side walls thereof, and the two ends of the ultraviolet lamp tube (8) are respectively fixed to the upper and lower fixing plates (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110538460.XA CN113134332B (en) | 2021-05-17 | 2021-05-17 | Catalyst automatic cycle type photocatalysis nitrogen fixation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110538460.XA CN113134332B (en) | 2021-05-17 | 2021-05-17 | Catalyst automatic cycle type photocatalysis nitrogen fixation reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113134332A true CN113134332A (en) | 2021-07-20 |
| CN113134332B CN113134332B (en) | 2022-05-20 |
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Family Applications (1)
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