CN110124603A - A kind of device preparing 2-aminopyridine -6- methyl formate - Google Patents
A kind of device preparing 2-aminopyridine -6- methyl formate Download PDFInfo
- Publication number
- CN110124603A CN110124603A CN201910516071.XA CN201910516071A CN110124603A CN 110124603 A CN110124603 A CN 110124603A CN 201910516071 A CN201910516071 A CN 201910516071A CN 110124603 A CN110124603 A CN 110124603A
- Authority
- CN
- China
- Prior art keywords
- agitating shaft
- aminopyridine
- methyl formate
- preparing
- aeration tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
-
- 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
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
- C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
- C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D213/78—Carbon atoms having three bonds to hetero atoms, with at the most one bond to halogen, e.g. ester or nitrile radicals
- C07D213/79—Acids; Esters
- C07D213/803—Processes of preparation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses a kind of devices for preparing 2-aminopyridine -6- methyl formate, are related to technology chemical equipment technical field.A kind of device preparing 2-aminopyridine -6- methyl formate, the esterifying kettle set on single overflow multilevel hierarchy rectifying column upstream, the esterifying kettle top are equipped with the mouth neck of connection internal cavity；Agitating shaft, is equipped with stirring blade, and the agitating shaft is controlled by motor；Further include: supporting plate is controlled by cylinder and the intermittent movement close to or far from the mouth neck occurs；Motor is set on the supporting plate, and drives the stirring blade to do intermittent back and forth movement along the vertical direction in the mixed solution with the supporting plate.It is intermittent vertically moving in the stirring blade rotation process of this programme, and controlled movement along the vertical direction is in motor, motor can be stepper motor, run duration and the direction of motion are set in advance, liquid is made to be not easy to move synchronously due to inertia with stirring blade, keep stirring more love abundant.
Description
Technical field
The present invention relates to chemical equipment technical field, more particularly to a kind of 2-aminopyridine -6- methyl formate for preparing
Device.
Background technique
2-aminopyridine -6- methyl formate is a kind of liquid of glassy yelloe, and density at 25 DEG C is 1.137g/ml, is melted
Point is 18.7 DEG C.
Prepare the equipment of 2-aminopyridine -6- methyl formate in the prior art as shown in Figure 1, include according to reaction sequence according to
The esterifying kettle 1 of secondary setting, primary condenser 4, single overflow multilevel hierarchy rectifying column 2, secondary boiling device 3 and it is set to Dan Yi
Flow the secondary condenser 5 at 2 top of multilevel hierarchy rectifying column.
Wherein, agitating device 6 is provided in esterifying kettle 1,6 bottom of agitating device is equipped with bubbling device 7.
The rotation of agitating device 6 is with the mixed liquor in movable vane piece agitation esterifying kettle 1, and bubbling device is in stirring into mixed liquor
Continue blow bubble, to accelerate to be stirred.
But it since agitating device is in stirring, moves in a circle always, causes mixed liquor to ramp up and become closer to
The movement velocity of stirring blade keeps the relative motion between stirring blade and liquid fewer and fewer, to reduce mixing liquid
In the uniformity of whipping step.
Summary of the invention
The technical problem to be solved by the present invention is to, the shortcomings that overcoming the prior art, provides and a kind of prepare 2-aminopyridine-
The device of 6- methyl formate, prevents mixed solution from moving synchronously with stirring blade, make stirring blade to the stirring of mixed solution more
Add uniformly.
In order to solve the above technical problems, the present invention provides a kind of device for preparing 2-aminopyridine -6- methyl formate, one
Kind prepares the device of 2-aminopyridine -6- methyl formate, including,
Esterifying kettle set on single overflow multilevel hierarchy rectifying column upstream, for accommodating mixed solution, for stirring for the mixed solution
It mixes, offer place is provided, the mouth neck of connection internal cavity is equipped at the top of the esterifying kettle；
Agitating shaft is arranged in the mouth neck, is extended to one end below the mixed solution liquid level and is equipped with stirring blade, described
Agitating shaft is controlled by motor；Further include:
Supporting plate is set to above the mouth neck, is controlled by cylinder and the intermittent movement close to or far from the mouth neck occurs；
Motor is set on the supporting plate, controls the agitating shaft rotation, and drive the stirring blade described with the supporting plate
Intermittent back and forth movement is done in mixed solution along the vertical direction.
Sliding sleeve is equipped in the mouth neck, the agitating shaft is slidably connected in the sliding sleeve, and the agitating shaft is in rotation
It is rotated simultaneously relative to the sliding sleeve.
Further include: frame body, for installing the cylinder and/or the esterifying kettle.
Further include: aeration tube, the end set on the agitating shaft far from the motor are distributed in the aeration tube several
Solarization air cap；
Molecular pump is filled with prefabricated gas into the aeration tube.
It is the hollow cavity passed through for the prefabricated gas inside the agitating shaft, is arranged with threeway on the agitating shaft
Valve, the agitating shaft are passed through and the triple valve and are slidably connected with the triple valve, and the agitating shaft can occur it is relatively described
The rotational action forward or reverse of triple valve.
The triple valve is set to above the mouth neck, and the triple valve is set on the mouth neck and/or frame body.
The agitating shaft passes through two blow vents of the triple valve, and remaining is gas supplementing opening, the gas supplementing opening connection point
Son pump.
The agitating shaft includes:
The top plate and bottom plate being parallel to each other are set at the top of the agitating shaft, and the top plate connects the output end of the motor, described
Bottom plate connects the agitating shaft；
Support rod is supported between the top plate and the bottom plate, is constituted between the adjacent support rod and is supplied the prefabricated gas
By gap.
The aeration tube further include:
Fluid stopping baffle is set on the outside of the aeration tube, fits over the solarization air cap；
Guide rod is arranged on the solarization air cap, and one end stretches out the solarization air cap and connects the fluid stopping baffle；
Elastic component is set in the aeration tube, is supported between the other end of the guide rod and the inner wall of the aeration tube, locates
The fluid stopping baffle is set to close the solarization air cap under compressive deformation state.
Several turbulence blades are distributed on the aeration tube outer wall, the turbulence blades are obliquely installed, and make the flow perturbation fan
When piece is vertically moving with the aeration tube, the area with the bigger promotion mixed solution.
The stirring blade is arc, and the stirring blade close to the position of the agitating shaft to the aeration tube direction
Protrusion.
The beneficial effects of the present invention are:
(1) top plate and bottom plate and support rod constitute the rotating turret for being set to agitating shaft top, and rotating turret is rotatably connected in triple valve,
And the corresponding position of support rod reciprocatingly slides with the lifting of supporting plate relative to triple valve along the vertical direction, make the top plate with it is described
The shift length of bottom plate limitation along the vertical direction；
(2) triple valve tool is there are three interconnected channel, the center overlapping of axles in the triple valve two of them channel in this programme
And it is parallel to vertical direction, therefore when agitating shaft passes through above-mentioned two parallel channel, remaining third channel is tonifying Qi
Mouthful, and be connected with molecular pump, molecular pump is filled with prefabricated gas towards above-mentioned rotating turret by gas supplementing opening, thus make prefabricated gas from
Tonifying Qi gap enter the agitating shaft in cavity, eventually by air pressure press fluid stopping baffle open, make the prefabricated gas into
Enter mixed solution；
(3) intermittent vertically moving in stirring blade rotation process, and controlled movement along the vertical direction is in motor,
Motor can be stepper motor, set run duration and the direction of motion in advance, be not easy liquid due to inertia with stirring blade
It moves synchronously, keeps stirring more love abundant.
Detailed description of the invention
Fig. 1 is background technique schematic diagram；
Fig. 2 is that the present invention indicates that esterifying kettle is set to the structural schematic diagram on frame body；
Fig. 3 is the schematic diagram for indicating triple valve and rotating frame connecting structure；
Fig. 4 is the cross-sectional view for indicating aeration tube structure.
Wherein: 1, esterifying kettle；11, mouth neck；12, sliding sleeve；2, single overflow multilevel hierarchy rectifying column；3, secondary boiling device；
4, primary condenser；5, secondary condenser；6, agitating device；61, agitating shaft；62, motor；63, stirring blade；64, top plate；
65, bottom plate；66, support rod；7, bubbling device；8, frame body；81, supporting plate；82, cylinder；9, aeration tube；91, fluid stopping baffle；92,
Elastic component；93, guide rod；94, turbulence blades；10, triple valve；101, gas supplementing opening.
Specific embodiment
Wherein identical components are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
Embodiment 1:
A kind of device preparing 2-aminopyridine -6- methyl formate provided in this embodiment, structure are as shown in the figure.
A kind of device preparing 2-aminopyridine -6- methyl formate, including,
Esterifying kettle 1 set on 2 upstream of single overflow multilevel hierarchy rectifying column, for accommodating mixed solution, be mixed solution stirring,
Reaction provides place, and the mouth neck 11 of connection internal cavity is equipped at the top of esterifying kettle 1；
Agitating shaft 61 is arranged in mouthful neck 11, extends to one end below mixed solution liquid level equipped with stirring blade 63, agitating shaft
61 are controlled by motor 62；Further include:
Supporting plate 81 is set to 11 top of mouth neck, is controlled by cylinder 82 and the intermittent movement close to or far from mouth neck 11 occurs；
Motor 62 is set on supporting plate 81, and control agitating shaft 61 rotates, and drives stirring blade 63 in mixed solution with supporting plate 81
Intermittent back and forth movement is done along the vertical direction.
It is equipped with sliding sleeve 12 in mouth neck 11, agitating shaft 61 is slidably connected in sliding sleeve 12, phase while rotation of agitating shaft 61
Sliding sleeve 12 is rotated.
Further include: frame body 8, for installing cylinder 82 and/or esterifying kettle 1.
Further include: several aerations are distributed on aeration tube 9 in aeration tube 9, the end set on agitating shaft 61 far from motor 62
Hole；
Molecular pump is filled with prefabricated gas into aeration tube 9.
It is the hollow cavity passed through for prefabricated gas inside agitating shaft 61, is arranged with triple valve 10 on agitating shaft 61, stirs
Axis 61 is mixed across triple valve 10 and is slidably connected with triple valve 10, and the rotating forward or anti-of opposite triple valve 10 can occur for agitating shaft 61
The rotational action turned.
Triple valve 10 is set to 11 top of mouth neck, and triple valve 10 is set on mouth neck 11 and/or frame body 8.
Agitating shaft 61 passes through two blow vents of triple valve 10, and remaining is gas supplementing opening 101, and gas supplementing opening 101 is connected to molecule
Pump.
Agitating shaft 61 includes:
The top plate 64 and bottom plate 65 being parallel to each other, are set to 61 top of agitating shaft, and top plate 64 connects the output end of motor 62, bottom plate 65
Connect agitating shaft 61；
Support rod 66 is supported between top plate 64 and bottom plate 65, is constituted between supplying prefabricated gas to pass through between adjacent supports bar 66
Gap.
Aeration tube 9 further include:
Fluid stopping baffle 91 is set to 9 outside of aeration tube, fits over solarization air cap；
Guide rod 93, is arranged on solarization air cap, and one end stretches out solarization air cap and connects fluid stopping baffle 91；
Elastic component 92 is set in aeration tube 9, is supported between the other end of guide rod 93 and the inner wall of aeration tube 9, in compression
Fluid stopping baffle 91 is set to close solarization air cap under deformed state.
Several turbulence blades 94 are distributed on 9 outer wall of aeration tube, turbulence blades 94 are obliquely installed, and make turbulence blades 94 with exposure
When tracheae 9 is vertically moving, the area with bigger promotion mixed solution.
Stirring blade 63 is arc, and stirring blade 63 is protruded close to the position of agitating shaft 61 to 9 direction of aeration tube.
Top plate 64, bottom plate 65 and support rod 66 constitute the rotating turret for being set to 61 top of agitating shaft, and rotating turret is rotatably connected on
In triple valve 10, and the corresponding position of support rod 66 is reciprocal sliding along the vertical direction relative to triple valve 10 with the lifting of supporting plate 81
It is dynamic, make the shift length of top plate 64 and the limitation of bottom plate 65 along the vertical direction；
The tool of triple valve 10 is there are three interconnected channel, the center overlapping of axles in the 10 two of them channel of triple valve in this programme
And it is parallel to vertical direction, therefore when agitating shaft 61 passes through above-mentioned two parallel channel, remaining third channel is benefit
Port 101, and be connected with molecular pump, molecular pump is filled with prefabricated gas towards above-mentioned rotating turret by gas supplementing opening 101, to make pre-
Gas processed enters the cavity in agitating shaft 61 from tonifying Qi gap, presses fluid stopping baffle 91 eventually by air pressure and opens, makes prefabricated gas
Body enters mixed solution；
It is intermittent vertically moving in 63 rotation process of stirring blade, and controlled movement along the vertical direction is in motor 62,
Motor 62 can be stepper motor 62, set run duration and the direction of motion in advance, be not easy liquid due to inertia with stirring
Blade 63 moves synchronously, and keeps stirring more love abundant.
In addition to the implementation, the present invention can also have other embodiments；It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (10)
1. a kind of device for preparing 2-aminopyridine -6- methyl formate, including,
Esterifying kettle (1) set on single overflow multilevel hierarchy rectifying column (2) upstream, it is molten for the mixing for accommodating mixed solution
Stirring, the reaction of liquid provide place, and the mouth neck (11) of connection internal cavity is equipped at the top of the esterifying kettle (1)；
Agitating shaft (61) is arranged in the mouth neck (11), is extended to one end below the mixed solution liquid level and is equipped with stirring
Blade (63), the agitating shaft (61) are controlled by motor (62)；
It is characterized by also including:
Supporting plate (81) is set to above the mouth neck (11), is controlled by cylinder (82) and intermittence occurs close to or far from the mouth neck
(11) movement；
Motor (62) is set on the supporting plate (81), controls the agitating shaft (61) rotation, and drive institute with the supporting plate (81)
It states stirring blade (63) and does intermittent back and forth movement along the vertical direction in the mixed solution.
2. a kind of device for preparing 2-aminopyridine -6- methyl formate according to claim 1, it is characterised in that: described
Sliding sleeve (12) are equipped in mouth neck (11), the agitating shaft (61) is slidably connected in the sliding sleeve (12), the agitating shaft (61)
It is rotated while rotation relative to the sliding sleeve (12).
3. a kind of device for preparing 2-aminopyridine -6- methyl formate according to claim 1, it is characterised in that: also wrap
It includes:
Frame body (8), for installing the cylinder (82) and/or the esterifying kettle (1).
4. a kind of device for preparing 2-aminopyridine -6- methyl formate according to claim 1, it is characterised in that: also wrap
It includes:
Aeration tube (9), is set to the end of the agitating shaft (61) far from the motor (62), and the aeration tube is distributed on (9)
Several solarization air caps；
Molecular pump is filled with prefabricated gas in the aeration tube (9).
5. a kind of device for preparing 2-aminopyridine -6- methyl formate according to claim 4, it is characterised in that: described
It is the hollow cavity passed through for the prefabricated gas inside agitating shaft (61), is arranged with triple valve on the agitating shaft (61)
(10), the agitating shaft (61) passes through the triple valve (10) and is slidably connected with the triple valve (10), and the agitating shaft
(61) rotational action forward or reverse of the relatively described triple valve (10) can occur.
6. a kind of device for preparing 2-aminopyridine -6- methyl formate according to claim 5, it is characterised in that: described
Triple valve (10) is set to above the mouth neck (11), and the triple valve (10) is set to the mouth neck (11) and/or frame body (8)
On.
7. a kind of device for preparing 2-aminopyridine -6- methyl formate according to claim 5 or 6, it is characterised in that: institute
Two blow vents that agitating shaft (61) pass through the triple valve (10) are stated, remaining is gas supplementing opening (101), the gas supplementing opening
(101) it is connected to molecular pump.
8. a kind of device for preparing 2-aminopyridine -6- methyl formate according to claim 5, it is characterised in that: described
Agitating shaft (61) includes:
The top plate (64) and bottom plate (65) being parallel to each other are set at the top of the agitating shaft (61), described in top plate (64) connection
The output end of motor (62), the bottom plate (65) connect the agitating shaft (61)；
Support rod (66) is supported between the top plate (64) and the bottom plate (65), structure between the adjacent support rod (66)
At the gap passed through for the prefabricated gas.
9. a kind of device for preparing 2-aminopyridine -6- methyl formate according to claim 4, it is characterised in that: described
Aeration tube (9) further include:
Fluid stopping baffle (91) is set on the outside of the aeration tube (9), fits over the solarization air cap；
Guide rod (93), is arranged on the solarization air cap, and one end stretches out the solarization air cap and connects the fluid stopping baffle (91)；
Elastic component (92) is set in the aeration tube (9), is supported on the other end and the aeration tube of the guide rod (93)
(9) between inner wall, the fluid stopping baffle (91) is made to close the solarization air cap under compressive deformation state.
10. a kind of device for preparing 2-aminopyridine -6- methyl formate according to claim 4, it is characterised in that: described
It is distributed with several turbulence blades (94) on aeration tube (9) outer wall, the turbulence blades (94) are obliquely installed, and make the turbulence blades
(94) when vertically moving with the aeration tube (9), the area with the bigger promotion mixed solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910516071.XA CN110124603A (en) | 2019-06-14 | 2019-06-14 | A kind of device preparing 2-aminopyridine -6- methyl formate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910516071.XA CN110124603A (en) | 2019-06-14 | 2019-06-14 | A kind of device preparing 2-aminopyridine -6- methyl formate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110124603A true CN110124603A (en) | 2019-08-16 |
Family
ID=67577303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910516071.XA Pending CN110124603A (en) | 2019-06-14 | 2019-06-14 | A kind of device preparing 2-aminopyridine -6- methyl formate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110124603A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050118077A1 (en) * | 2002-01-16 | 2005-06-02 | Ralf Oliver Petri | Microwave mixer/dryer reactor for industrial use |
| CN205613419U (en) * | 2016-05-06 | 2016-10-05 | 绍兴科恩特助剂有限公司 | A reation kettle for production of reactive turquoise blue levelling agent |
| CN205731227U (en) * | 2016-05-05 | 2016-11-30 | 常州高特新材料有限公司 | Disturbance uniform stirring formula reactor up and down |
| CN207287406U (en) * | 2017-07-31 | 2018-05-01 | 绵竹耀隆化工有限公司 | A kind of reaction kettle for being used to produce basic zirconium phosphate |
| CN108722331A (en) * | 2018-05-30 | 2018-11-02 | 天津朝花夕拾科技有限公司 | A kind of Cosmetic Manufacture reaction kettle |
| CN208711598U (en) * | 2018-07-25 | 2019-04-09 | 江苏新宏大集团有限公司 | A kind of top center aeration mixing device |
-
2019
- 2019-06-14 CN CN201910516071.XA patent/CN110124603A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050118077A1 (en) * | 2002-01-16 | 2005-06-02 | Ralf Oliver Petri | Microwave mixer/dryer reactor for industrial use |
| CN205731227U (en) * | 2016-05-05 | 2016-11-30 | 常州高特新材料有限公司 | Disturbance uniform stirring formula reactor up and down |
| CN205613419U (en) * | 2016-05-06 | 2016-10-05 | 绍兴科恩特助剂有限公司 | A reation kettle for production of reactive turquoise blue levelling agent |
| CN207287406U (en) * | 2017-07-31 | 2018-05-01 | 绵竹耀隆化工有限公司 | A kind of reaction kettle for being used to produce basic zirconium phosphate |
| CN108722331A (en) * | 2018-05-30 | 2018-11-02 | 天津朝花夕拾科技有限公司 | A kind of Cosmetic Manufacture reaction kettle |
| CN208711598U (en) * | 2018-07-25 | 2019-04-09 | 江苏新宏大集团有限公司 | A kind of top center aeration mixing device |
Non-Patent Citations (1)
| Title |
|---|
| 秦麟源: "《新编废水生物处理》", 30 September 2011, 同济大学出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206950713U (en) | A kind of extraction equipment | |
| CN110124603A (en) | A kind of device preparing 2-aminopyridine -6- methyl formate | |
| CN209828777U (en) | Sealed production of gluing is with dispersator | |
| CN219942744U (en) | Surfactant feeding device | |
| CN219647274U (en) | Stirring kettle | |
| CN112371030A (en) | High-pressure homogenizer | |
| CN217970117U (en) | Filling funnel of reducible bubble | |
| CN115350617A (en) | Liquid medicine test stirring device with self-cleaning function and stirring method thereof | |
| CN214233816U (en) | Homogenizing device | |
| CN212142279U (en) | Modified silicone oil apparatus for producing | |
| CN205340801U (en) | Agitating unit's reation kettle has been improved | |
| CN211435880U (en) | Stirring mixer capable of stirring up and down simultaneously | |
| CN206715912U (en) | A kind of coating reaction kettle | |
| CN115957656B (en) | Refining agent mixing tank for textiles | |
| CN218256052U (en) | Raw materials mixing mechanism convenient to clearance | |
| CN220214621U (en) | Biliary water adding and stirring mechanism for bean curd processing | |
| CN220478672U (en) | Mixed automatic stirrer | |
| CN216727238U (en) | Polycondensation kettle | |
| CN220900100U (en) | Shoe leather solvent mixing stirring equipment | |
| CN115945114B (en) | Preparation equipment of cationic clay stabilizer | |
| CN219518457U (en) | Coating raw material dispersing and emulsifying machine | |
| CN216604932U (en) | Agitating unit is used in cosmetics production | |
| CN219580547U (en) | Stirring device for preparing novel antituberculosis drug intermediate | |
| CN217449698U (en) | Stirring device with adjustable stirring distance | |
| CN220918760U (en) | Mixing arrangement is used in disinfectant processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190816 |