CN108693012A - The concentration device of Strontium-90 nuclide emission chemical analysis water sample in water - Google Patents
The concentration device of Strontium-90 nuclide emission chemical analysis water sample in water Download PDFInfo
- Publication number
- CN108693012A CN108693012A CN201810322278.9A CN201810322278A CN108693012A CN 108693012 A CN108693012 A CN 108693012A CN 201810322278 A CN201810322278 A CN 201810322278A CN 108693012 A CN108693012 A CN 108693012A
- Authority
- CN
- China
- Prior art keywords
- concentration
- water
- bucket
- filling port
- strontium
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to concentration engineering device technique field, the concentration device for providing Strontium-90 nuclide emission chemical analysis water sample in a kind of water includes concentration bucket and heating device.Concentration staving includes water filling port and the water outlet opposite with water filling port, heating device is stretched to by the water filling port of column staving in concentration bucket, multiple effluent switch are also opened up on the side wall of concentration bucket, each effluent switch is set gradually along the direction of water filling port to the water outlet of concentration bucket.When the strontium in concentration bucket, yttrium carbonate sediment need to be collected, each effluent switch is opened from the water filling port end of concentration bucket to water outlet end successively successively in sequence, supernatant is then gradually discharged after reaction, until the last one effluent switch is opened, remaining supernatant and the sediment that need to be collected then are discharged by the water outlet of concentration bucket, in this way, vortex is formed by when can avoid the problem that using siphonage Aspirate supernatant causes sediment to be drawn away the agitation of sediment, and then improves the concentration concentration of sediment.
Description
Technical field
The present invention relates to concentration engineering device technique fields, especially provide Strontium-90 nuclide emission chemical analysis water sample in a kind of water
The concentration device of product.
Background technology
Strontium-90 is a kind of important high toxicity sliver nucleic, is typical bone seeking nuclide, is had very to health
Important radiohygiene meaning is the important analysis project of radiation detection analysis.
Currently, Strontium-90 nucleic radiation detection analyzes widely used two-(2- ethylhexyls) phosphoric acid extraction chromatograph in China's water
Method.Because the concentration of the Strontium-90 nucleic in environmental water sample is usually very low, the most key ring of this method is that palpus concentration in advance is a large amount of
It is analyzed again after water sample.The main process of concentration is the water sample that about 40L or more is injected in concentration device, with nitric acid tune
PH value is saved to strontium, yttrium carrier are added when 1.0, water sample is heated to 50 DEG C or so, the pH value of water sample is adjusted to 8 with concentrated ammonia liquor
Ammonium carbonate is added after~9, it is close to boiling to continue to heat water sample, then cooling and standings 10h or more, then draws supernatant with siphonage
Liquid collects strontium, yttrium carbonate deposition in transfer device, realizes the concentration to Strontium-90 nucleic and its daughter Yttrium-90 nucleic.But
It is, it is poor to Strontium-90 nucleic concentration effect using existing concentration device in concentrating process, it is mainly manifested in:Concentration concentration
It is low.
Invention content
The purpose of the present invention is to provide a kind of concentration device of Strontium-90 nuclide emission chemical analysis water sample in water, purports
Solving the problems, such as that the concentration concentration of existing concentration device is low.
To achieve the above object, the technical solution adopted by the present invention is:Strontium-90 nuclide emission chemical analysis water sample in water
Concentration device, including concentration bucket and heating device, the concentration staving includes water filling port and opposite with the water filling port
Water outlet, the heating device stretches to by the water filling port of the column staving in the concentration bucket, the concentration bucket
Side wall on also open up multiple effluent switch, each effluent switch along the concentration bucket the water filling port to the water outlet
Direction set gradually.
Specifically, the concentration bucket includes column staving and the taper staving that is connected with the column staving, described
Taper staving is protruded out by the one end of the column staving and is formed in the axial direction, and the column staving has the water filling port,
The taper staving has a water outlet, each effluent switch along the concentration bucket the water filling port to the water outlet
Axis direction set gradually.
Specifically, the heating device includes adjuster, fixing bracket and multiple heating tubes, and the fixing bracket is set up
At the water filling port of the concentration bucket, each heating tube is set on the fixing bracket and is inserted into the concentration bucket
Interior, the adjuster is electrically connected by conducting wire and each heating tube.
Specifically, the fixing bracket is annular fixing bracket, each heating tube with the annular it is support bracket fastened in
It is circumferentially laid centered on axis.
Further, the concentration device further includes cooling device, and the concentration bucket is placed in cooling device.
Specifically, the cooling device includes that cooling bay, heat dissipation cistern and the pump housing, the concentration bucket are placed in described cold
But in pond, the cooling bay, the heat dissipation cistern and the pump housing are connected to successively by conduit so that watering cycle flows from beginning to end.
Further, the concentration device includes water filling device, the water filling device by the concentration bucket the water filling
Mouth stretches in the concentration bucket.
Specifically, the water filling device includes kinetic pump, flowmeter and spray head, the kinetic pump, the flowmeter
And the spray head is sequentially communicated by conduit, the spray head is stretched to described dense by the water filling port of the concentration bucket
Collect in bucket.
Beneficial effects of the present invention:The concentration device of Strontium-90 nuclide emission chemical analysis water sample in the water of the present invention,
Operation principle is as follows:When using two-(2- ethylhexyls) phosphoric acid extraction chromatographies, strontium, the yttrium carbonic acid in concentration bucket need to be collected
When salt sediment, each effluent switch is opened from the water filling port end of concentration bucket to water outlet end successively successively in sequence, then
Supernatant is then gradually discharged after reaction, until the last one effluent switch is opened, remaining supernatant and the sediment that need to collect are then
It is discharged by the water outlet of concentration bucket, vortex is formed by when in such manner, it is possible to avoid using siphonage Aspirate supernatant to sediment
Agitation and the problem of cause sediment to be drawn away, and then improve the concentration concentration of sediment, meanwhile, operation is greatly reduced
The labor intensity of personnel.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment for those of ordinary skill in the art without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the knot of the concentration device of Strontium-90 nuclide emission chemical analysis water sample in water provided in an embodiment of the present invention
Structure schematic diagram;
Fig. 2 be water provided in an embodiment of the present invention in Strontium-90 nuclide emission chemical analysis water sample concentration device plus
The structural schematic diagram of thermal.
Wherein, each reference numeral in figure:
1-2-heating device of concentration bucket 1a-water filling port
1b-water outlet 11-effluent switch, 12-column staving
13-taper staving 21-adjuster, 22-fixing brackets
23-heating tube 3-cooling device, 31-cooling bays
32-heat dissipation cistern 33-pump housing, 4-water filling devices
41-kinetic pump 42-flowmeter, 43-spray heads.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated dress
It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as the limit to the present invention
System.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;Can be that machinery connects
It connects, can also be electrical connection;It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
Referring to FIG. 1, in water provided in an embodiment of the present invention Strontium-90 nuclide emission chemical analysis water sample concentration device
Including concentration bucket 1 and heating device 2.1 body of concentration bucket includes the water filling port 1a and water outlet 1b opposite with water filling port 1a, is added
Thermal 2 is stretched to by the water filling port 1a of column staving in concentration bucket 1, and multiple effluent switch are also opened up on the side wall of concentration bucket 1
11, each effluent switch 11 is set gradually along the direction of water filling port 1a to the water outlet 1b of concentration bucket 1.
The concentration device of Strontium-90 nuclide emission chemical analysis water sample in water provided in an embodiment of the present invention, work are former
Reason is as follows:After using two-(2- ethylhexyls) phosphoric acid extraction chromatographies, strontium, the yttrium carbonate deposition in concentration bucket 1 need to be collected
When object, each effluent switch 11 is opened from the ends water filling port 1a of concentration bucket 1 to the ends water outlet 1b successively successively in sequence, then
Supernatant is then gradually discharged after reaction, until the last one effluent switch 11 is opened, remaining supernatant and the sediment that need to be collected
Then by the water outlet 1b discharges of concentration bucket 1, vortex is formed by when in such manner, it is possible to avoid using siphonage Aspirate supernatant to heavy
The agitation of starch and the problem of cause sediment to be drawn away, and then improve the concentration concentration of sediment, meanwhile, be greatly reduced
The labor intensity of operating personnel.
Preferably, in the present embodiment, the arrangement spacing of each effluent switch 11 by the water filling port 1a of concentration bucket 1 to water outlet
1b reduces step by step.It is to be appreciated that effluent switch 11, when closer to water outlet 1b, the spacing of two neighboring effluent switch 11 is then
It is smaller, i.e., it is even closer in a row.In such manner, it is possible to which supernatant is discharged as much as possible, the agitation to sediment is reduced.
Specifically, referring to FIG. 1, in the present embodiment, concentration bucket 1 include column staving 12 and with 12 phase of column staving
The taper staving 13 of connection.Taper staving 13 is protruded out by the one end of column staving 12 and is formed in the axial direction, column staving 12
With water filling port 1a, taper staving 13 has water outlet 1b, water filling port 1a to water outlet 1b of each effluent switch 11 along concentration bucket 1
Axis direction set gradually.It is to be appreciated that with the continuous aggregation and generation of sediment, under the effect of gravity, sediment
It finally is gathered in the taper tip of taper staving 13, in this way, it is more conducive to collection sediment, meanwhile, also reduce vortex to it
Influence.Preferably, water outlet 1b is opened up at the taper tip of taper staving 13, can farthest collects sediment.
Preferably, in the present embodiment, the inner surface of the inner surface of column staving 12 and taper staving 13 is coated with one
Layer polytetrafluorethylecoatings coatings.Polytetrafluorethylecoatings coatings can subtract adsorptivity of the keg wall inner wall to strontium, yttrium carbonate sediment, more
Added with the collection conducive to strontium, yttrium carbonate sediment.
Specifically, please refer to Fig.1 and Fig. 2, in the present embodiment, heating device 2 include adjuster 21, fixing bracket 22 with
And multiple heating tubes 23.Fixing bracket 22 is set up at the water filling port 1a of concentration bucket 1, and each heating tube 23 is set on fixing bracket 22
And be inserted into concentration bucket 1, adjuster 21 is electrically connected by conducting wire and each heating tube 23.It is to be appreciated that adjuster 21 is used
In the calorific value size for adjusting and maintaining each heating tube 23, realize that the sample water in concentration bucket 1 is heated evenly.
Preferably, referring to FIG. 2, in the present embodiment, fixing bracket 22 is annular fixing bracket 22, each heating tube 23 with
It is circumferentially laid centered on the central axes of annular fixing bracket 22.It is to be appreciated that disclosure satisfy that in the heating tube 23 circumferentially laid
To the uniformly heated demand of sample water in concentration bucket 1.
Further, referring to FIG. 1, in the present embodiment, concentration device further includes cooling device 3, concentration bucket 1 is placed in cold
But in device 3.It is to be appreciated that significantly shorten the cooling and standings time of sample water using cooling device 3, it is relatively naturally cold
But, quickly shorten cooling time.
Specifically, referring to FIG. 1, in the present embodiment, cooling device 3 includes cooling bay 31, heat dissipation cistern 3 and pump
Body 33.Concentration bucket 1 is placed in cooling bay 31, and cooling bay 31, heat dissipation cistern 3 and the pump housing 33 are connected to from beginning to end successively by conduit
So that watering cycle flows.It is to be appreciated that the water temperature in cooling bay 31 gradually rises over time, in the pump housing 33
Under driving, the water in cooling bay 31 flows via a conduit heat dissipation cistern 3, i.e., cooling in the cistern 3 that radiates, and then cools
Water be back to again in cooling bay 31, so recycle.Preferably, the entrance of recirculated water is located at concentration set on cooling bay 31
Bucket 1 water filling port 1b at, the outlet of recirculated water is located at set on cooling bay 31 at the water outlet 1a of concentration bucket 1, in this way, cooling water by
The lower entrance in position enters, and is then flowed out by the higher outlet in position, it is ensured that make full use of cooling water temperature.
Further, referring to FIG. 1, in the present embodiment, concentration device includes water filling device 4, and water filling device 4 is by concentration
The water filling port 1a of bucket 1 is stretched in concentration bucket 1.It is to be appreciated that water filling device 4 is used to inject sample water in concentration bucket 1, together
When, deionized water can be injected, the inner wall of concentration bucket 1 is cleaned.
Specifically, referring to FIG. 1, in the present embodiment, water filling device 4 includes kinetic pump 41, flowmeter 42 and spray
First 43.Kinetic pump 41, flowmeter 42 and spray head 43 are sequentially communicated by conduit, spray head 43 by concentration bucket 1 water filling port
1a is stretched in concentration bucket 1.Kinetic pump 41, which provides, pumps power, and flowmeter 42 measures injected water volume and spray head 43 is used for mist
Change sample water, it is more obvious to the cleaning performance of 1 inner wall of concentration bucket especially when it is deionized water to supply water.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
All any modification, equivalent and improvement made by within principle etc., should all be included in the protection scope of the present invention.
Claims (8)
1. the concentration device of Strontium-90 nuclide emission chemical analysis water sample in a kind of water, it is characterised in that:Including concentration bucket and
Heating device, the concentration staving include water filling port and the water outlet opposite with the water filling port, and the heating device is by institute
The water filling port for stating column staving stretches in the concentration bucket, and multiple water outlets are also opened up on the side wall of the concentration bucket and are opened
It closes, each effluent switch is set gradually along the direction of the water filling port to the water outlet of the concentration bucket.
2. the concentration device of Strontium-90 nuclide emission chemical analysis water sample, feature exist in water according to claim 1
In:The concentration bucket includes column staving and the taper staving that is connected with the column staving, and the taper staving is by institute
The one end for stating column staving protrudes out to be formed in the axial direction, and the column staving has the water filling port, the taper staving
With the water outlet, each effluent switch along the concentration bucket the water filling port to the water outlet axis direction according to
Secondary setting.
3. the concentration device of Strontium-90 nuclide emission chemical analysis water sample, feature exist in water according to claim 1
In:The heating device includes adjuster, fixing bracket and multiple heating tubes, and the fixing bracket is set up in the concentration bucket
The water filling port at, each heating tube be set to the fixing bracket on and be inserted into the concentration bucket, the adjuster
It is electrically connected by conducting wire and each heating tube.
4. the concentration device of Strontium-90 nuclide emission chemical analysis water sample, feature exist in water according to claim 3
In:The fixing bracket is annular fixing bracket, and each heating tube is all centered on the support bracket fastened central axes of annular
To laying.
5. the concentration device of Strontium-90 nuclide emission chemical analysis water sample in water according to any one of claims 1 to 4,
It is characterized in that:The concentration device further includes cooling device, and the concentration bucket is placed in cooling device.
6. the concentration device of Strontium-90 nuclide emission chemical analysis water sample, feature exist in water according to claim 5
In:The cooling device includes cooling bay, heat dissipation cistern and the pump housing, and the concentration bucket is placed in the cooling bay, described
Cooling bay, the heat dissipation cistern and the pump housing are connected to successively by conduit so that watering cycle flows from beginning to end.
7. the concentration device of Strontium-90 nuclide emission chemical analysis water sample in water according to any one of claims 1 to 4,
It is characterized in that:The concentration device includes water filling device, and the water filling device is stretched by the water filling port of the concentration bucket
In to the concentration bucket.
8. the concentration device of Strontium-90 nuclide emission chemical analysis water sample, feature exist in water according to claim 7
In:The water filling device includes kinetic pump, flowmeter and spray head, the kinetic pump, the flowmeter and the spray
Head is sequentially communicated by conduit, and the spray head is stretched to by the water filling port of the concentration bucket in the concentration bucket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810322278.9A CN108693012B (en) | 2018-04-11 | 2018-04-11 | Concentration device for water sample of radiochemical analysis of strontium-90 nuclide in water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810322278.9A CN108693012B (en) | 2018-04-11 | 2018-04-11 | Concentration device for water sample of radiochemical analysis of strontium-90 nuclide in water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108693012A true CN108693012A (en) | 2018-10-23 |
| CN108693012B CN108693012B (en) | 2021-12-21 |
Family
ID=63845632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810322278.9A Active CN108693012B (en) | 2018-04-11 | 2018-04-11 | Concentration device for water sample of radiochemical analysis of strontium-90 nuclide in water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108693012B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06230186A (en) * | 1993-02-08 | 1994-08-19 | Hitachi Ltd | Processing system and method of radioactive waste |
| CN1346807A (en) * | 2000-12-06 | 2002-05-01 | 尹寅秀 | Method and device for treatment of sewage or waste water and stabilization of sludge to reuse |
| CN102617011A (en) * | 2012-04-17 | 2012-08-01 | 重庆大学 | Infiltration chamber system for infiltrating, drying and digesting sludge |
| CN103648976A (en) * | 2011-06-23 | 2014-03-19 | 巴布科克诺尔有限公司 | Process and plant for decontaminating phosphoric acid solution |
| CN103951055A (en) * | 2014-04-30 | 2014-07-30 | 安徽大学 | Reactor and method for treating wastewater with low carbon nitrogen ratio by carrying out methanation and denitrification simultaneously |
| CN204644100U (en) * | 2015-05-14 | 2015-09-16 | 西安长庆科技工程有限责任公司 | A kind of sewage sludge concentration basin |
| CN105700007A (en) * | 2016-04-08 | 2016-06-22 | 江苏省核与辐射安全监督管理局 | Radioactive water sample evaporation and concentration device and method |
| WO2018018864A1 (en) * | 2016-07-27 | 2018-02-01 | 大唐环境产业集团股份有限公司 | Membrane distillation crystallization treatment device and method |
| CN107739824A (en) * | 2017-11-29 | 2018-02-27 | 洛阳理工学院 | A kind of device and method of the contactless bioleaching red mud of batch |
-
2018
- 2018-04-11 CN CN201810322278.9A patent/CN108693012B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06230186A (en) * | 1993-02-08 | 1994-08-19 | Hitachi Ltd | Processing system and method of radioactive waste |
| CN1346807A (en) * | 2000-12-06 | 2002-05-01 | 尹寅秀 | Method and device for treatment of sewage or waste water and stabilization of sludge to reuse |
| CN103648976A (en) * | 2011-06-23 | 2014-03-19 | 巴布科克诺尔有限公司 | Process and plant for decontaminating phosphoric acid solution |
| CN102617011A (en) * | 2012-04-17 | 2012-08-01 | 重庆大学 | Infiltration chamber system for infiltrating, drying and digesting sludge |
| CN103951055A (en) * | 2014-04-30 | 2014-07-30 | 安徽大学 | Reactor and method for treating wastewater with low carbon nitrogen ratio by carrying out methanation and denitrification simultaneously |
| CN204644100U (en) * | 2015-05-14 | 2015-09-16 | 西安长庆科技工程有限责任公司 | A kind of sewage sludge concentration basin |
| CN105700007A (en) * | 2016-04-08 | 2016-06-22 | 江苏省核与辐射安全监督管理局 | Radioactive water sample evaporation and concentration device and method |
| WO2018018864A1 (en) * | 2016-07-27 | 2018-02-01 | 大唐环境产业集团股份有限公司 | Membrane distillation crystallization treatment device and method |
| CN107739824A (en) * | 2017-11-29 | 2018-02-27 | 洛阳理工学院 | A kind of device and method of the contactless bioleaching red mud of batch |
Non-Patent Citations (3)
| Title |
|---|
| 党磊 等: "低水平90Sr的分析方法研究进展", 《核化学与放射化学》 * |
| 李芳 等: "海水中90Sr分析方法的初步研究", 《辐射防护》 * |
| 陆巍巍 等: "低水平环境水样中90Sr 含量的测定", 《同位素》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108693012B (en) | 2021-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204438521U (en) | A kind of water inlet pipe component and water tank | |
| CN104349638A (en) | Cabinet liquid cooling system and cabinet | |
| CN108693012A (en) | The concentration device of Strontium-90 nuclide emission chemical analysis water sample in water | |
| CN109378283A (en) | Chemical corrosion liquid injects groove body flow field constant-current stabilizer | |
| CN208350819U (en) | A kind of Continuous Flow Analysis instrument reagent feedway | |
| CN103343079B (en) | Method for accelerating aging of liquor by circulating utilization of distillation cooling water of liquor | |
| CN211284347U (en) | Efficient multi-liquid-medicine liquid injection device and chromosome harvesting and processing system thereof | |
| CN209027321U (en) | A kind of water distribution system for cooling tower | |
| CN210432701U (en) | Spraying equipment based on landscape plant protection is used | |
| CN103755022B (en) | Reducing IC (Internal Circulation) anaerobic reactor | |
| CN203763864U (en) | Concentrator | |
| CN205965801U (en) | A tower reactor for dimethyl urea building -up reactions | |
| CN206337411U (en) | Combined type rotary drum washing machine | |
| CN208127161U (en) | A kind of thermoregulation mechanism for dipper | |
| CN205887576U (en) | Nuclear magnetic resonance pipe is belt cleaning device in batches | |
| CN205313420U (en) | A propylhomoserin method compound fertilizer granulation section of thick bamboo with tubular reactor | |
| CN206613823U (en) | Syringe needle cleaning type injection medicine bottle cleaning device | |
| CN205007613U (en) | Lactide rapid condensation crystallization device | |
| CN206454631U (en) | A kind of reactor for producing polydextrose | |
| CN205903649U (en) | Ammonium sulfate concentration device | |
| CN205255316U (en) | Novel resin heater of structure | |
| CN103480295A (en) | Device for quickly mixing ammonium nitrate water solution | |
| CN207528089U (en) | A kind of furane resins reaction kettle production efficiently cooling equipment | |
| CN210346394U (en) | Box-type liquid ammonia vaporizer | |
| CN201926148U (en) | Solar water heater and metal circulating pipe mounted in water tank thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |