CN108636319A - One kind 2,4,5- trichloroanilines process units and method - Google Patents
One kind 2,4,5- trichloroanilines process units and method Download PDFInfo
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- CN108636319A CN108636319A CN201810559404.2A CN201810559404A CN108636319A CN 108636319 A CN108636319 A CN 108636319A CN 201810559404 A CN201810559404 A CN 201810559404A CN 108636319 A CN108636319 A CN 108636319A
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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
- B01J19/18—Stationary reactors having moving elements inside
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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
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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
- B01J19/0066—Stirrers
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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
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
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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
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
- C07C201/08—Preparation of nitro compounds by substitution of hydrogen atoms by nitro groups
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/30—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds
- C07C209/32—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups
- C07C209/325—Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups reduction by other means than indicated in C07C209/34 or C07C209/36
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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
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00132—Controlling the temperature using electric heating or cooling elements
- B01J2219/00135—Electric resistance heaters
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- Mixers Of The Rotary Stirring Type (AREA)
Abstract
The invention discloses one kind 2,4,5 trichloroaniline process units and method,Including servo motor,Agitator,First gear,Connecting tube,Gas sampling tank,First rotating shaft,Helical blade,Solenoid valve,Filter device,Damping device,Supporting rack,Discharge nozzle,Electric heating sheets,Stirring blade,Control panel,Second shaft,Feed pipe,Fixed bin and second gear,The agitator is connected with control panel by data line,The side of the agitator is connected with feed pipe by flange,The other side of the agitator is connected with gas sampling tank by buckle,And connecting tube is connected with by flange between gas sampling tank and agitator,Discharge nozzle is connected with by flange at the bottom centre of the agitator,The side of the discharge nozzle has been bolted solenoid valve,The process units,With good damping effect,Highly practical and high production efficiency feature.
Description
Technical field
The present invention relates to 2,4,5- trichloroaniline technical fields, specially a kind of 2,4,5- trichloroaniline process units and side
Method.
Background technology
2,4,5- trichloroanilines are a kind of spontaneously inflammable poisonous substances, while having the function of combustion-supporting, are also acted as in dyestuff
Mesosome, it is slightly soluble in petroleum ether, is soluble in ethyl alcohol and carbon disulfide.And in it produces preparation process, it need to be in shady and cool and logical
In the environment of wind, the personnel of working at the same time need to wear protective garment, in order to avoid skin is caused to stimulate.
And in existing 2,4,5- trichloroaniline process units, that there are damping effects is poor, practicability is weak and production efficiency
Low problem.Often the dangerous feelings that can be influenced the degree of stability of the process units due to by outer force effect, and then leaked
Condition, and in producing preparation process, production efficiency can be influenced because stirring efficiency is low often.Therefore, a kind of damping effect is designed
Good, highly practical and high production efficiency 2,4,5- trichloroaniline process units are necessary.
Invention content
The purpose of the present invention is to provide a kind of 2,4,5- trichloroaniline process units and methods, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the present invention provides the following technical solutions：
One kind 2,4,5- trichloroaniline process units, including servo motor, agitator, first gear, connecting tube, gas sampling
Tank, first rotating shaft, helical blade, solenoid valve, filter device, damping device, supporting rack, discharge nozzle, electric heating sheets, paddle
Piece, control panel, the second shaft, feed pipe, fixed bin and second gear, the agitator are connected with control plane by data line
The side of plate, the agitator is connected with feed pipe by flange, and the other side of the agitator is connected by buckle activity
It is connected to gas sampling tank, and connecting tube is connected with by flange between gas sampling tank and agitator, the agitator
Discharge nozzle is connected with by flange at bottom centre, the side of the discharge nozzle has been bolted solenoid valve, described
One end of discharge nozzle is connected with filter device by buckle, and the bottom of the agitator has been bolted supporting rack,
The bottom of support frame as described above corresponds to and is equipped with damping device, and the both sides inner wall of the agitator is evenly distributed with electric heating sheets, institute
It states and has been bolted servo motor at the top center of agitator, the side of the servo motor is connected by shaft coupling activity
It is connected to the second shaft, second gear is installed in second shaft, the outside of second shaft has been bolted spiral shell
Vane piece, the inside of the agitator correspond to and are equipped with first rotating shaft, are equipped with first gear in the first rotating shaft, and described the
The outside of one gear and second gear is equipped with fixed bin, and by being adhesively fixed between fixed bin and agitator, and described first
The outside of shaft is evenly distributed with stirring blade；
The filter device is made of absorption cotton net, sponge filter screen and filtering screen, and the inside of the filtering screen is pacified respectively
Equipped with absorption cotton net and sponge filter screen, and adsorb between cotton net and sponge filter screen and filtering screen by being adhesively fixed；
The damping device is by adjustable spring, sliding rail, connecting plate, cushion socket, buffer air bag, sliding block, limited block and buffering upright
The both sides inner walls correspondence of composition, the cushion socket is equipped with sliding rail, the both ends of the sliding rail by being welded with limited block,
The inside of the sliding rail is equipped with sliding block, and connecting plate, the top of the connecting plate have been bolted between two sliding blocks
It has been bolted buffering upright, and has been connected with adjustable spring between buffering upright and the top inner wall of cushion socket, the company
By being adhesively fixed with buffer air bag, the control plane at the bottom centre of fishplate bar and between the bottom interior wall center of cushion socket
Plate is electrically connected servo motor, electric heating sheets and solenoid valve.
One kind 2,4,5- trichloroaniline production methods, include the following steps：Step 1, selection and stock；Step 2, nitrification
Processing；Step 3, reduction treatment；Step 4, distillation processing；Step 5, proper storage；
Wherein in above-mentioned step one, by 1,2,4- trichloro-benzenes, pure water, iron powder, acetic acid, nitration mixture and a concentration of 95% sulphur
Acid is prepared enough, and is placed in low temperature environment, in case volatilization phenomenon occurs for acid material；
Wherein in above-mentioned step two, by a concentration of 95% sulfuric acid and 1,2,4- trichloro-benzenes are imported by feed pipe in agitator
It is stirred, mixing time was controlled at 30 minutes, and controlled electric heating sheets work by control panel, will be in agitator
Reaction temperature maintain 45 degree, later again by nitration mixture by feed pipe import agitator in be stirred, mixing time control
System controls electric heating sheets work in two hours, and by control panel, the reaction temperature in agitator is maintained 60 degree, most
After add pure water and be diluted operation, you can the trichloronitrobenzene crude product generated through chemical reaction is obtained in agitator；
Wherein in above-mentioned step three, by acetic acid, iron powder and pure water by feed pipe import agitator in, and in step 2
The trichloronitrobenzene crude product generated through chemical reaction in agitator is stirred, and mixing time was controlled in four hours,
And electric heating sheets work is controlled by control panel, the stable reaction in agitator is maintained 150 degree so that in agitator
Raw material is fully boiled, and can obtain 2,4, the 5- trichloroaniline crude products generated through chemical reaction in agitator later；
It is wherein in above-mentioned step four, 2,4, the 5- trichloroanilines generated through chemical reaction in agitator in step 3 are thick
Product carry out distillation procedure, and distillation time was controlled in a hour, and the gas distilled out is made to import gas sampling through connecting tube
Be collected in tank, at the same can be obtained in agitator it is purified after 2,4,5- trichloroanilines；
Wherein in above-mentioned step five, first pass through control panel control solenoid valve open, and will be purified in step 4 after
2,4,5- trichloroanilines are exported by discharge nozzle, and are filtered processing to the dregs in agitator using filter device, finally will
Obtained 2,4,5- trichloroanilines are stored in stainless steel hermetically sealed can, and are positioned in the space of shady and cool ventilation.
According to above-mentioned technical proposal, the first gear is to engage connection with second gear.
According to above-mentioned technical proposal, it is flexibly connected by bearing between the agitator and fixed bin and first rotating shaft.
According to above-mentioned technical proposal, the helical blade is fit structure with stirring blade.
According to above-mentioned technical proposal, the bottom of second shaft has been bolted scraper plate.
According to above-mentioned technical proposal, the agitator is with electric heating sheets by being adhesively fixed.
According to above-mentioned technical proposal, the nitration mixture in the step 1 is by a concentration of 35% nitric acid and a concentration of 65% sulphur
Acid mixes.
Compared with prior art, the beneficial effects of the invention are as follows：
1：The present invention is connected with filter device in one end of discharge nozzle by buckle, can when material is exported by discharge nozzle
First by the absorption cotton net in filter device by the dregs contained in material absorption, then by the sponge filter screen in filter device by object
The grease absorption contained in material, convenient for improving the quality of production of raw material, and is connected in the other side of agitator by buckle activity
It is connected to gas sampling tank, and connecting tube is connected with by flange between gas sampling tank and agitator, convenient for that will produce
The exhaust gas generated in journey is collected, in case pollution environment, helps to improve the practicality of 2,4, the 5- trichloroaniline process units
Property；
2：When agitator is by external impacts, buffering upright can be caused to move downward, and in the process, it can make flexible bullet
Spring is stretched and buffer air bag is extruded, and first by the cushioning effect of buffer air bag, and a part of external force that agitator is subject to is inhaled
It receives, then by the reply force effect of adjustable spring itself, a part of external force that agitator is subject to is offset, and agitator is substantially increased
Degree of stability, the dangerous feelings such as efficiently avoid so that agitator is toppled over because impact force is excessive, and then lead to leakage
The generation of condition helps to improve the damping effect of 2,4, the 5- trichloroaniline process units；
3：The work of control panel control servomotor is first passed through, servo motor drives the second shaft to rotate clockwise, the second shaft
It drives helical blade and second gear to rotate clockwise, engages connection with second gear by first gear so that second gear
First gear is driven to rotate counterclockwise, by being flexibly connected by bearing between agitator and fixed bin and first rotating shaft, first
First gear is installed, the outside of first rotating shaft is evenly distributed with stirring blade in shaft so that first gear drives first turn
Axis and stirring blade rotate counterclockwise, and are fit structure according to helical blade and stirring blade, stirring blade rotate counterclockwise and
Helical blade is to rotate clockwise so that stirring efficiency of the material after entering agitator is greatly improved, and is not only alleviated
The labor intensity of worker, also shortens the production time, helps to improve the production efficiency of 2,4, the 5- trichloroaniline process units.
Description of the drawings
Fig. 1 is the whole sectional structure chart of the present invention；
Fig. 2 is the filter apparatus configuration figure of the present invention；
Fig. 3 is the damping device structure chart of the present invention；
Fig. 4 is 2,4, the 5- trichloroaniline production method flow charts of the present invention；
Figure label：1, servo motor；2, agitator；3, first gear；4, connecting tube；5, gas sampling tank；6, first rotating shaft；
7, helical blade；8, solenoid valve；9, filter device；10, damping device；11, supporting rack；12, discharge nozzle；13, electric heating sheets；
14, stirring blade；15, control panel；16, the second shaft；17, feed pipe；18, fixed bin；19, second gear；20, adsorption cotton
Net；21, sponge filter screen；22, filtering screen；23, adjustable spring；24, sliding rail；25, connecting plate；26, cushion socket；27, it buffers
Air bag；28, sliding block；29, limited block；30, buffering upright.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 3 are please referred to Fig.1, the present invention provides a kind of 2,4,5- trichloroaniline process units, including servo motor 1, agitator
2, first gear 3, connecting tube 4, gas sampling tank 5, first rotating shaft 6, helical blade 7, solenoid valve 8, filter device 9, damping dress
Set 10, supporting rack 11, discharge nozzle 12, electric heating sheets 13, stirring blade 14, control panel 15, the second shaft 16, feed pipe 17,
Fixed bin 18 and second gear 19, agitator 2 are connected with control panel 15 by data line, and the side of agitator 2 passes through flange
It is connected with feed pipe 17, the other side of agitator 2 is connected with gas sampling tank 5, and gas sampling tank 5 by buckle
Connecting tube 4 is connected with by flange between agitator 2, is connected with by flange at the bottom centre of agitator 2
The side of discharge nozzle 12, discharge nozzle 12 has been bolted solenoid valve 8, and one end of discharge nozzle 12 is connected with by buckle
The bottom of filter device 9, agitator 2 has been bolted supporting rack 11, and the bottom of supporting rack 11, which corresponds to, is equipped with damping dress
10 are set, the both sides inner wall of agitator 2 is evenly distributed with electric heating sheets 13, has been bolted at the top center of agitator 2
The side of servo motor 1, servo motor 1 is connected with the second shaft 16 by shaft coupling, and is equipped in the second shaft 16
The outside of two gears 19, the second shaft 16 has been bolted helical blade 7, and the inside of agitator 2, which corresponds to, is equipped with first
Shaft 6, is equipped with first gear 3 in first rotating shaft 6, and the outside of first gear 3 and second gear 19 is equipped with fixed bin 18, and
By being adhesively fixed between fixed bin 18 and agitator 2, the outside of first rotating shaft 6 is evenly distributed with stirring blade 14；
Filter device 9 is made of absorption cotton net 20, sponge filter screen 21 and filtering screen 22, and the inside of filtering screen 22 is pacified respectively
Equipped with absorption cotton net 20 and sponge filter screen 21, and adsorbs and pass through between cotton net 20 and sponge filter screen 21 and filtering screen 22
It is adhesively fixed；
Damping device 10 is by adjustable spring 23, sliding rail 24, connecting plate 25, cushion socket 26, buffer air bag 27, sliding block 28, limited block
29 and buffering upright 30 form, the both sides inner walls correspondence of cushion socket 26 is equipped with sliding rail 24, and the both ends of sliding rail 24 pass through welding
It is fixed with limited block 29, the inside of sliding rail 24 is equipped with sliding block 28, and has been bolted connecting plate between two sliding blocks 28
25, the top of connecting plate 25 has been bolted buffering upright 30, and the top inner wall of buffering upright 30 and cushion socket 26 it
Between be connected with adjustable spring 23, it is Nian Jie with passing through between the bottom interior wall center of cushion socket 26 at the bottom centre of connecting plate 25
It is fixed with buffer air bag 27, control panel 15 is electrically connected servo motor 1, electric heating sheets 13 and solenoid valve 8.
Referring to Fig. 4, a kind of 2,4,5- trichloroaniline production methods, include the following steps：Step 1, selection and stock；
Step 2, nitrification processing；Step 3, reduction treatment；Step 4, distillation processing；Step 5, proper storage；
Wherein in above-mentioned step one, by 1,2,4- trichloro-benzenes, pure water, iron powder, acetic acid, nitration mixture and a concentration of 95% sulphur
Acid is prepared enough, and is placed in low temperature environment, in case volatilization phenomenon occurs for acid material；
Wherein in above-mentioned step two, by a concentration of 95% sulfuric acid and 1,2,4- trichloro-benzenes import agitator 2 by feed pipe 17
It is inside stirred, mixing time was controlled at 30 minutes, and was controlled electric heating sheets 13 by control panel 15 and worked, and will be stirred
It mixes the reaction temperature in bucket 2 and maintains 45 degree, nitration mixture is imported by feed pipe 17 in agitator 2 be again stirred later,
Mixing time was controlled in two hours, and was controlled electric heating sheets 13 by control panel 15 and worked, by the reaction temperature in agitator 2
Degree maintains 60 degree, finally adds pure water and is diluted operation, you can is obtained in agitator 2 through chemical reaction generation
Trichloronitrobenzene crude product；
Wherein in above-mentioned step three, acetic acid, iron powder and pure water are imported by feed pipe 17 in agitator 2, and and step
The trichloronitrobenzene crude product generated through chemical reaction in agitator 2 in two is stirred, and mixing time is controlled at four
Hour, and electric heating sheets 13 are controlled by control panel 15 and are worked, the stable reaction in agitator 2 is maintained 150 degree so that
Raw material in agitator 2 is fully boiled, and can obtain 2,4, the 5- trichloro-benzenes generated through chemical reaction in agitator 2 later
Amine crude product；
It, will be in step 3 in interior 2,4, the 5- trichloroanilines generated through chemical reaction of agitator 2 wherein in above-mentioned step four
Crude product carries out distillation procedure, and distillation time was controlled in a hour, and the gas distilled out is made to import exhaust gas through connecting tube 4 and receive
Collection tank 5 in be collected, while can be obtained in agitator 2 it is purified after 2,4,5- trichloroanilines；
Wherein in above-mentioned step five, first pass through control panel 15 control solenoid valve 8 open, and will be purified in step 4 after
2,4,5- trichloroanilines exported by discharge nozzle 12, and using filter device 9 processing is filtered to the dregs in agitator 2,
Finally obtained 2,4,5- trichloroanilines are stored in stainless steel hermetically sealed can, and are positioned in the space of shady and cool ventilation.
According to above-mentioned technical proposal, first gear 3 is to engage connection with second gear 19, is convenient for first gear 3 and second
The cooperation of gear 19 rotates.
According to above-mentioned technical proposal, it is flexibly connected by bearing between agitator 2 and fixed bin 18 and first rotating shaft 6,
Convenient for the rotation of first rotating shaft 6.
According to above-mentioned technical proposal, helical blade 7 is fit structure with stirring blade 14, convenient for improving stirring efficiency.
According to above-mentioned technical proposal, the bottom of the second shaft 16 has been bolted scraper plate, is convenient for 2 bottom of agitator
The remaining dregs of inner wall strike off.
According to above-mentioned technical proposal, agitator 2, by being adhesively fixed, is convenient for improving agitator 2 and electricity with electric heating sheets 13
Stability when heating plate 13 connects.
According to above-mentioned technical proposal, the nitration mixture in step 1 is mixed by a concentration of 35% nitric acid and a concentration of 65% sulfuric acid
It closes, convenient for improving using effect.
Based on above-mentioned, it is an advantage of the current invention that being connected with filter device by buckle in one end of discharge nozzle 12
9, when material is exported by discharge nozzle 12, first the dregs contained in material can be adsorbed by the absorption cotton net 20 in filter device 9,
The grease contained in material is adsorbed by the sponge filter screen 21 in filter device 9 again, convenient for improving the quality of production of raw material,
And gas sampling tank 5 is connected with by buckle in the other side of agitator 2, and lead between gas sampling tank 5 and agitator 2
It crosses flange and is connected with connecting tube 4, convenient for the exhaust gas generated in production process is collected, in case pollution environment, helps
In the practicability for improving 2,4, the 5- trichloroaniline process units；When agitator 2 is by external impacts, buffering upright can be caused
30 move downward, and in the process, it can so that adjustable spring 23 is stretched and buffer air bag 27 is extruded, and first by buffering gas
The cushioning effect of capsule 27, a part of external force that agitator 2 is subject to absorb, then by the reply force effect of adjustable spring 23 itself,
A part of external force that agitator 2 is subject to is offset, and the degree of stability of agitator 2 is substantially increased, and is efficiently avoided because of impact
Power it is excessive and make agitator 2 topple over, and then cause leak etc. dangerous situations generation, help to improve this 2,4,5- tri-
The damping effect of chloroaniline process units；The work of 15 control servomotor 1 of control panel is first passed through, servo motor 1 drives second
Shaft 16 rotates clockwise, and the second shaft 16 drives helical blade 7 and second gear 19 to rotate clockwise, by first gear 3 with
Second gear 19 is that engagement connects so that second gear 19 drives first gear 3 to rotate counterclockwise, by agitator 2 and fixed bin
Be flexibly connected by bearing between 18 and first rotating shaft 6, first gear 3 be installed in first rotating shaft 6, first rotating shaft 6 it is outer
Portion is evenly distributed with stirring blade 14 so that and first gear 3 drives first rotating shaft 6 and stirring blade 14 to rotate counterclockwise, according to
Helical blade 7 is fit structure with stirring blade 14, and stirring blade 14 rotates counterclockwise and helical blade 7 is to rotate clockwise,
So that stirring efficiency of the material after entering agitator 2 is greatly improved, the labor intensity of worker is not only alleviated, is also shortened
Production time, help to improve the production efficiency of 2,4, the 5- trichloroaniline process units.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. one kind 2,4,5- trichloroaniline process units, including servo motor（1）, agitator（2）, first gear（3）, connecting tube
（4）, gas sampling tank（5）, first rotating shaft（6）, helical blade（7）, solenoid valve（8）, filter device（9）, damping device（10）、
Supporting rack（11）, discharge nozzle（12）, electric heating sheets（13）, stirring blade（14）, control panel（15）, the second shaft（16）, into
Expects pipe（17）, fixed bin（18）And second gear（19）, it is characterised in that：The agitator（2）It is connected with control by data line
Panel processed（15）, the agitator（2）Side feed pipe is connected with by flange（17）, the agitator（2）It is another
Side is connected with gas sampling tank by buckle（5）, and gas sampling tank（5）With agitator（2）Between lived by flange
It is dynamic to be connected with connecting tube（4）, the agitator（2）Bottom centre at discharge nozzle is connected with by flange（12）, described
Discharge nozzle（12）Side be bolted solenoid valve（8）, the discharge nozzle（12）One end pass through buckle flexible connection
There is filter device（9）, the agitator（2）Bottom be bolted supporting rack（11）, support frame as described above（11）Bottom
Portion corresponds to and is equipped with damping device（10）, the agitator（2）Both sides inner wall be evenly distributed with electric heating sheets（13）, described to stir
Mix bucket（2）Top center at be bolted servo motor（1）, the servo motor（1）Side pass through shaft coupling
It is connected with the second shaft（16）, second shaft（16）On second gear is installed（19）, second shaft（16）
Outside be bolted helical blade（7）, the agitator（2）Inside correspond to first rotating shaft is installed（6）, described
First rotating shaft（6）On first gear is installed（3）, the first gear（3）And second gear（19）Outside fixation is installed
Box（18）, and fixed bin（18）With agitator（2）Between by being adhesively fixed, the first rotating shaft（6）Outside be uniformly distributed
There is stirring blade（14）；
The filter device（9）By absorption cotton net（20）, sponge filter screen（21）And filtering screen（22）Composition, the filter screen
Cover（22）Inside be separately installed with absorption cotton net（20）With sponge filter screen（21）, and adsorb cotton net（20）With sponge filter screen
（21）With filtering screen（22）Between by being adhesively fixed；
The damping device（10）By adjustable spring（23）, sliding rail（24）, connecting plate（25）, cushion socket（26）, buffer air bag
（27）, sliding block（28）, limited block（29）And buffering upright（30）Composition, the cushion socket（26）Both sides inner walls correspondence be equipped with
Sliding rail（24）, the sliding rail（24）Both ends by being welded with limited block（29）, the sliding rail（24）Inside installation
There is sliding block（28）, and two sliding blocks（28）Between be bolted connecting plate（25）, the connecting plate（25）Top it is logical
It crosses bolt and is fixed with buffering upright（30）, and buffering upright（30）With cushion socket（26）Top inner wall between be connected with flexible bullet
Spring（23）, the connecting plate（25）Bottom centre at and cushion socket（26）Bottom interior wall center between by being adhesively fixed
There is buffer air bag（27）, the control panel（15）It is electrically connected servo motor（1）, electric heating sheets（13）And solenoid valve（8）.
2. one kind 2,4,5- trichloroaniline production methods, include the following steps：Step 1, selection and stock；Step 2, at nitrification
Reason；Step 3, reduction treatment；Step 4, distillation processing；Step 5, proper storage；It is characterized in that：
Wherein in above-mentioned step one, by 1,2,4- trichloro-benzenes, pure water, iron powder, acetic acid, nitration mixture and a concentration of 95% sulphur
Acid is prepared enough, and is placed in low temperature environment, in case volatilization phenomenon occurs for acid material；
Wherein in above-mentioned step two, by a concentration of 95% sulfuric acid and 1,2,4- trichloro-benzenes are by feed pipe（17）Import stirring
Bucket（2）It is inside stirred, mixing time was controlled at 30 minutes, and passed through control panel（15）Control electric heating sheets（13）
Work, by agitator（2）Interior reaction temperature maintains 45 degree, later again by nitration mixture by feed pipe（17）Import agitator（2）
It is inside stirred, mixing time was controlled in two hours, and passed through control panel（15）Control electric heating sheets（13）Work,
By agitator（2）Interior reaction temperature maintains 60 degree, finally adds pure water and is diluted operation, you can in agitator
（2）Inside obtain the trichloronitrobenzene crude product generated through chemical reaction；
Wherein in above-mentioned step three, by acetic acid, iron powder and pure water by feed pipe（17）Import agitator（2）It is interior, and with
In agitator in step 2（2）The interior trichloronitrobenzene crude product generated through chemical reaction is stirred, mixing time control
In four hours, and pass through control panel（15）Control electric heating sheets（13）Work, by agitator（2）Interior stable reaction maintains
At 150 degree so that agitator（2）Interior raw material is fully boiled, later can be in agitator（2）It inside obtains giving birth to through chemical reaction
At 2,4,5- trichloroaniline crude products；
Wherein in above-mentioned step four, by step 3 in agitator（2）Interior 2,4, the 5- trichloro-benzenes generated through chemical reaction
Amine crude product carries out distillation procedure, and distillation time was controlled in a hour, and made the gas distilled out through connecting tube（4）It imports useless
Gas collecting tank（5）In be collected, while can be in agitator（2）Inside obtain it is purified after 2,4,5- trichloroanilines；
Wherein in above-mentioned step five, control panel is first passed through（15）Control solenoid valve（8）Open, and by step 4 through carrying
2 after pure, 4,5- trichloroanilines are by discharge nozzle（12）Export, and using filter device（9）To agitator（2）Interior dregs carry out
Obtained 2,4,5- trichloroanilines are finally stored in stainless steel hermetically sealed can, and are positioned over the sky of shady and cool ventilation by filtration treatment
In.
3. according to claim 1 a kind of 2,4,5- trichloroaniline process units, it is characterised in that：The first gear（3）With
Second gear（19）It is connected for engagement.
4. according to claim 1 a kind of 2,4,5- trichloroaniline process units, it is characterised in that：The agitator（2）With it is solid
Determine box（18）With first rotating shaft（6）Between be flexibly connected by bearing.
5. according to claim 1 a kind of 2,4,5- trichloroaniline process units, it is characterised in that：The helical blade（7）With
Stirring blade（14）For fit structure.
6. according to claim 1 a kind of 2,4,5- trichloroaniline process units, it is characterised in that：Second shaft（16）'s
Bottom has been bolted scraper plate.
7. according to claim 1 a kind of 2,4,5- trichloroaniline process units, it is characterised in that：The agitator（2）With electricity
Heating plate（13）By being adhesively fixed.
8. according to claim 2 a kind of 2,4,5- trichloroaniline production methods, it is characterised in that：Nitration mixture in the step 1
It is to be mixed by a concentration of 35% nitric acid and a concentration of 65% sulfuric acid.
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Application publication date: 20181012 |