CN212687659U - Automatic medicament adding device - Google Patents
Automatic medicament adding device Download PDFInfo
- Publication number
- CN212687659U CN212687659U CN202020399418.5U CN202020399418U CN212687659U CN 212687659 U CN212687659 U CN 212687659U CN 202020399418 U CN202020399418 U CN 202020399418U CN 212687659 U CN212687659 U CN 212687659U
- Authority
- CN
- China
- Prior art keywords
- liquid level
- medicament
- control valve
- medicine
- dissolving tank
- 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.)
- Active
Links
Images
Landscapes
- Accessories For Mixers (AREA)
Abstract
The utility model discloses a medicament automatic adding device, which comprises a raw medicament tank for storing medicament, a solvent pipeline for conveying solvent, a medicament dissolving tank for preparing medicament solution, a liquid level meter for detecting the liquid level in the medicament dissolving tank, a medicament feeding pipeline for conveying the medicament solution to a sewage treatment system and a control device, wherein the medicament dissolving tank is connected with the medicament feeding pipeline through a medicament feeding pump; a first control valve is arranged between the original medicine tank and the medicine dissolving tank, a second control valve is arranged between the solvent pipeline and the medicine dissolving tank, a third control valve is arranged between the medicine dissolving tank and the medicine feeding pump, and the first control valve, the second control valve and the third control valve are all connected with a control device; the liquid level meter is connected with the control device, and the control device controls the on-off of the first control valve and the second control valve according to the liquid level of the liquid level meter so as to ensure the concentration of the medicament solvent. Therefore, automation is realized, manual participation is reduced, labor intensity is reduced, meanwhile, the concentration of the medicament solution can be effectively maintained by using the liquid level meter control device, and automatic and accurate addition of the medicament is realized.
Description
Technical Field
The utility model relates to a sewage treatment technical field, more specifically say, relate to an automatic device that adds of medicament.
Background
With the rapid development of the industry, the amount of sewage generated in industrial production is increased rapidly, and new requirements for sewage treatment are provided.
The existing sewage treatment methods comprise a physical method, a chemical method and a biological method, and all the three methods need to add agents such as a flocculating agent, a coagulant aid, a biological carbon source or a high-efficiency biological agent and the like into a sewage treatment system.
Current medicament mostly is inputed to sewage treatment system in through adding the medicine pipeline after dissolving in, consequently has that the manual operation volume is big, be difficult to control, medicament concentration unstability scheduling problem, has both caused the waste of medicament resource, has also influenced sewage treatment effect.
In summary, how to achieve automatic and accurate addition of a medicament is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides an automatic drug adding device, wherein the control device can control the input, mixing and transportation of the drug and the solvent according to the liquid level in the drug dissolving tank detected by the liquid level meter, and the automatic degree is high and the drug concentration is effectively ensured.
In order to achieve the above object, the present invention provides the following technical solutions:
an automatic medicament adding device comprises a raw medicament tank for storing medicaments, a solvent pipeline for conveying a solvent, a medicament dissolving tank for preparing a medicament solution, a liquid level meter for detecting the liquid level in the medicament dissolving tank, a medicament feeding pipeline for conveying the medicament solution to a sewage treatment system and a control device, wherein the medicament dissolving tank is connected with the medicament feeding pipeline through a medicament feeding pump;
a first control valve is arranged between the raw medicine tank and the medicine dissolving tank, a second control valve is arranged between the solvent pipeline and the medicine dissolving tank, a third control valve is arranged between the medicine dissolving tank and the medicine feeding pump, and the first control valve, the second control valve and the third control valve are all connected with the control device;
the liquid level meter is connected with the control device, and the control device controls the on-off of the first control valve and the second control valve according to the liquid level detected by the liquid level meter so as to ensure the concentration of the medicament solvent.
Preferably, after the liquid level meter detects that the liquid level drops to a first preset liquid level, the control device controls the first control valve to be opened;
after the liquid level meter detects that the liquid level rises to a second preset liquid level, the control device controls the first control valve to be closed and the second control valve to be opened;
after the liquid level meter detects that the liquid level rises to a third preset liquid level, the control device controls the second control valve to be closed;
the height of the third preset liquid level is greater than that of the second preset liquid level, and the height of the second preset liquid level is greater than that of the first preset liquid level.
Preferably, the first control valve, the second control valve and the third control valve are all pneumatic control valves, and the pneumatic control valves are connected with the control device.
Preferably, the medicine dissolving device further comprises an air compressor connected with the medicine dissolving tank so as to blow and stir the medicine solution in the medicine dissolving tank.
Preferably, the tail end of the dosing pipeline is provided with at least two dosing pipeline branches, each dosing pipeline branch is provided with a fourth control valve for controlling on-off, and the fourth control valve is connected with the control device.
Preferably, a flow meter for adjusting the flow is arranged on the branch line of the dosing pipeline.
Preferably, a mixer is arranged on at least one of the medicine adding pipeline branches, so that the medicine solution and the sludge are fully mixed.
Preferably, the number of the dosing pumps is two, and the two dosing pumps are connected in parallel between the medicine dissolving tank and the dosing pipeline.
Preferably, the number of the medicine dissolving tanks is at least two, and when the liquid level in any one of the medicine dissolving tanks is reduced to a first preset liquid level, the control device controls the corresponding third control valve to be closed and the other corresponding third control valves to be opened.
The utility model provides an automatic medicament adding device, which comprises a raw medicament tank for storing medicament, a solvent pipeline for conveying solvent, a medicament dissolving tank for preparing medicament solution, a liquid level meter for detecting the liquid level in the medicament dissolving tank, a medicament feeding pipeline for conveying the medicament solution to a sewage treatment system and a control device, wherein the medicament dissolving tank is connected with the medicament feeding pipeline through a medicament feeding pump; a first control valve is arranged between the original medicine tank and the medicine dissolving tank, a second control valve is arranged between the solvent pipeline and the medicine dissolving tank, a third control valve is arranged between the medicine dissolving tank and the medicine feeding pump, and the first control valve, the second control valve and the third control valve are all connected with a control device; the liquid level meter is connected with the control device, and the control device controls the on-off of the first control valve and the second control valve according to the liquid level detected by the liquid level meter so as to ensure the concentration of the medicament solvent.
During operation, the medicament in the original medicine tank enters the medicine dissolving tank through the first control valve, the solvent enters the medicine dissolving tank through the second control valve, the medicament and the solvent are mixed in the medicine dissolving tank to form a medicament solution with a certain concentration, and the prepared medicament solution enters the medicine adding pipeline through the medicine adding pump and is conveyed to the sewage treatment system to react with sewage. In the process, the liquid level meter monitors the liquid level in the medicine dissolving tank, so that the control device controls the output of the medicine and the solvent and maintains the stability of the medicine solution.
Because the input, the mixing process of required component have all been realized automaticly in the preparation of medicament solution, have reduced artifical participation, have reduced intensity of labour, simultaneously because the input through level gauge control component, controlling means can effectively maintain the concentration of medicament solution, consequently the utility model discloses an automatic accurate interpolation of medicament.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of an automatic drug adding device according to the present invention.
In fig. 1:
1 is a raw medicine tank, 2 is a first control valve, 3 is a medicine dissolving tank, 4 is a second control valve, 5 is a medicine adding pump, 6 is a third control valve, 7 is a medicine adding pipeline, 71 is a branch line of the medicine adding pipeline, 8 is a flow meter, 9 is a fourth control valve, 10 is a liquid level meter, 11 is an air compressor, 12 is a mixer and 13 is a control device.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide an automatic device that adds of medicament, controlling means can be according to the input, the mixture and the transport of the liquid level control medicament, the solvent in the solution jar that the level gauge detected, and degree of automation is high and has guaranteed the medicament concentration effectively.
Referring to fig. 1, a schematic structural diagram of an embodiment of an automatic drug adding device according to the present invention is shown.
The utility model provides an automatic medicament adding device, which comprises a raw medicament tank 1 for storing medicament, a solvent pipeline for conveying solvent, a medicament dissolving tank 3 for preparing medicament solution, a liquid level meter 10 for detecting the liquid level in the medicament dissolving tank 3, a medicament adding pipeline 7 for conveying the medicament solution to a sewage treatment system and a control device 13, wherein the medicament dissolving tank 3 is connected with the medicament adding pipeline 7 through a medicament adding pump 5; a first control valve 2 is arranged between the original medicine tank 1 and the medicine dissolving tank 3, a second control valve 4 is arranged between the solvent pipeline and the medicine dissolving tank 3, a third control valve 6 is arranged between the medicine dissolving tank 3 and the medicine feeding pump 5, and the first control valve 2, the second control valve 4 and the third control valve 6 are all connected with a control device 13; the liquid level meter 10 is connected with a control device 13, and the control device 13 controls the on-off of the first control valve 2 and the second control valve 4 according to the liquid level detected by the liquid level meter 10 so as to ensure the concentration of the medicament solvent.
The connection between the gauge 10 and the control device 13 may be physical or may be signal transmission only.
The type of the liquid level meter 10 can be determined according to the actual production requirement by referring to the prior art, preferably, the flap liquid level meter can be selected and arranged on the pipe wall of the medicine dissolving tank 3, the structure is simple, the installation is convenient, the measuring range is wide, and the measuring precision is high.
Dissolving tank 3 provides the preparation place for the medicament solution, and is preferred, in order to accelerate dissolving of medicament, can be equipped with air compressor machine 11 in the device, air compressor machine 11 is connected with dissolving tank 3 to the medicament solution to dissolving tank 3 in carries out the blast air stirring.
The first control valve 2 is arranged between the original medicine tank 1 and the medicine dissolving tank 3 and is used for controlling the input of the medicine; the second control valve 4 is arranged between the solvent pipeline and the medicine dissolving tank 3 and is used for controlling the input of the solvent; the third control valve 6 is arranged between the medicine dissolving tank 3 and the medicine adding pump 5 and is used for controlling the output of the medicine solution.
Since the sectional area of the drug dissolving tank 3 is a fixed value, the liquid level is detected by the liquid level meter 10, and the control device 13 can acquire the amount of the drug inputted by the first control valve 2 and the amount of the solvent inputted by the second control valve 4. As can be seen from the concentration calculation formula, the concentration of the drug solution is only related to the amount of the drug and the amount of the solvent, so that the control device 13 can maintain the concentration of the prepared drug solution constant by detecting the liquid level by the liquid level meter 10.
During operation, the medicament in the original medicine jar 1 gets into dissolving medicine jar 3 through first control valve 2, and the solvent gets into dissolving medicine jar 3 through second control valve 4, and the medicament mixes, forms the medicament solution of certain concentration with the solvent in dissolving medicine jar 3, and the medicament solution of accomplishing of preparation gets into through adding medicine pump 5 and adds medicine pipeline 7, is carried to reacting with sewage in the sewage treatment system. In this process, the level meter 10 monitors the liquid level in the drug dissolving tank 3, so that the control device 13 controls the output of the drug and the solvent and maintains the stability of the drug solution.
In this embodiment, because the input and mixing processes of the components required for preparing the drug solution are automated, the manual participation is reduced, and the labor intensity is reduced, and meanwhile, because the input amount of the components is controlled by the liquid level meter 10, the control device 13 can effectively maintain the concentration of the drug solution, and thus, the automatic and accurate addition of the drug is realized.
Preferably, the first control valve 2, the second control valve 4 and the third control valve 6 may be all pneumatic control valves, and the pneumatic control valves are connected with the control device 13.
The control device 13 may be a PLC control cabinet, or may be an integrated chip, a single chip, or the like.
On the basis of the above embodiment, the manner of controlling the concentration of the chemical solution by the control device 13 is defined, and after the liquid level meter 10 detects that the liquid level drops to the first preset liquid level, the control device 13 controls the first control valve 2 to open; after the liquid level meter 10 detects that the liquid level rises to a second preset liquid level, the control device 13 controls the first control valve 2 to be closed and the second control valve 4 to be opened; after the liquid level meter 10 detects that the liquid level rises to a third preset liquid level, the control device 13 controls the second control valve 4 to close; the height of the third preset liquid level is greater than that of the second preset liquid level, and the height of the second preset liquid level is greater than that of the first preset liquid level.
It should be noted that during this process, the third control valve 6 should be closed in order to keep the pharmacological solution relatively stable.
Therefore, after the liquid level in the drug dissolving tank 3 is reduced to a first preset liquid level, the control device 13 controls the first control valve 2 to be opened, and the medicament in the original drug tank 1 is input into the drug dissolving tank 3; after the liquid level rises to a second preset liquid level, the input amount of the medicament reaches a preset value, the control device 13 controls the first control valve 2 to be closed and controls the second control valve 4 to be opened, and the solvent is input into the medicament dissolving tank 3; after the liquid level rises to a third preset liquid level, the input amount of the solvent reaches a preset value, and the control device 13 controls the second control valve 4 to close.
Among the first preset liquid level, the second preset liquid level and the third preset liquid level, the first preset liquid level and the third preset liquid level are set according to actual production requirements, and the second preset liquid level is calculated according to the first preset liquid level, the second preset liquid level and the required medicament concentration. For example, taking the first preset liquid level as H1, the third preset liquid level as H3, and the volume concentration of the drug solution as α, the second preset liquid level H2 of the drug dissolving tank 3 with a constant cross-sectional area with height should be H1+ α (H3-H1).
For the medicine dissolving tank 3 with the sectional area changing along with the height, the size of the second preset liquid level H2 is satisfied
Where f(s) is a function of the cross-sectional area of the canister 3 and the height of the canister 3.
Of course, if the solvent is first supplied and then the drug is supplied, the controller 13 may first control the second control valve 4 to be opened and then control the first control valve 2 to be opened.
Furthermore, the control device 13 may control the first control valve 2 and the second control valve 4 to be opened and closed simultaneously when it is ensured that the ratio of the flow rate of the two valves satisfies the concentration requirement of the drug solution.
On the basis of the above embodiment, in order to realize accurate positioning of the dosing position, at least two dosing line branches 71 may be respectively provided at the end of the dosing line 7, a fourth control valve 9 for controlling on-off is provided on each dosing line branch 71, and the fourth control valve 9 is connected with the control device 13.
Because the outlet positions of different dosing pipeline branch lines 71 are different, different dosing pipeline branch lines 71 can be selected according to the dosing positions, the medicament utilization rate is effectively improved, and the medicament dosage is reduced.
The specific number of the dosing line branches 71 can be determined according to the actual production requirements, and the sizes of different dosing line branches 71 can be the same or different.
Preferably, a flow meter 8 for adjusting the flow rate can be arranged on the dosing line branch line 71, so as to adjust the flow rate of the passing medicament as required, avoid the waste of the medicament and further improve the medicament utilization rate.
The type and specification of the flowmeter 8 should be selected according to the actual production requirements by referring to the prior art.
Preferably, a mixer 12 may be further provided on at least one of the chemical feeding line branch lines 71 to sufficiently mix the chemical solution with the sludge and improve the chemical utilization rate and the sewage treatment effect.
On the basis of the above embodiment, in order to avoid that the dosing pump 5 is damaged to cause the medicament adding device to fail to operate, the number of the dosing pumps 5 can be set to two, and the two dosing pumps 5 are arranged between the medicine dissolving tank 3 and the dosing pipeline 7 in parallel.
In this embodiment, after one dosing pump 5 damaged, in another dosing pump 5 of medicament solution accessible carried to adding medicine pipeline 7, avoided the maintenance to change the device shutdown that causes, guaranteed the continuous steady operation that the medicament added the device.
On the basis of the above embodiment, the number of the drug dissolving tanks 3 may be set to be at least two, and when the liquid level in any drug dissolving tank 3 falls to the first preset liquid level, the control device 13 controls the corresponding third control valve 6 to be closed and the corresponding third control valves 6 of the other drug dissolving tanks 3 to be opened.
Therefore, in this embodiment, when the liquid level in the drug dissolving tank 3 is too low and the drug solution cannot be continuously supplied, the drug can be continuously supplied by other drug dissolving tanks 3, so that the drug adding device is prevented from stopping running in the drug solution preparation process, and continuous and stable running is realized.
For example, two drug dissolving tanks 3 may be provided as a working drug dissolving tank and a candidate drug dissolving tank, the control device 13 controls the two drug dissolving tanks 3 to complete solution preparation simultaneously or sequentially (the candidate drug dissolving tank needs to complete solution preparation before the working drug dissolving tank falls to a first preset liquid level), the working drug dissolving tank is controlled to supply a drug solution until the liquid level of the working drug dissolving tank reaches the first preset liquid level, the corresponding third control valve 6 is closed, the corresponding third control valve 6 of the candidate drug dissolving tank is opened, and the control device 13 controls the first control valve 2 and the second control valve 4 to perform solution preparation on the working drug dissolving tank.
It should be noted that the first, second, third and fourth control valves of the first control valve 2, the second control valve 4, the third control valve 6 and the fourth control valve 9 mentioned in the present document are only used for distinguishing the difference of the positions, and do not limit the sequence.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above is to the automatic medicament adding device provided by the utility model is introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (9)
1. The automatic medicament adding device is characterized by comprising a raw medicament tank (1) for storing a medicament, a solvent pipeline for conveying a solvent, a medicament dissolving tank (3) for preparing a medicament solution, a liquid level meter (10) for detecting the liquid level in the medicament dissolving tank (3), a medicament adding pipeline (7) for conveying the medicament solution to a sewage treatment system and a control device (13), wherein the medicament dissolving tank (3) is connected with the medicament adding pipeline (7) through a medicament adding pump (5);
a first control valve (2) is arranged between the raw medicine tank (1) and the medicine dissolving tank (3), a second control valve (4) is arranged between the solvent pipeline and the medicine dissolving tank (3), a third control valve (6) is arranged between the medicine dissolving tank (3) and the medicine feeding pump (5), and the first control valve (2), the second control valve (4) and the third control valve (6) are all connected with the control device (13);
the liquid level meter (10) is connected with the control device (13), and the control device (13) controls the on-off of the first control valve (2) and the second control valve (4) according to the liquid level detected by the liquid level meter (10) so as to ensure the concentration of the medicament solvent.
2. The automatic medicament adding device according to claim 1, wherein the control device (13) controls the first control valve (2) to open after the liquid level meter (10) detects that the liquid level drops to a first preset liquid level;
after the liquid level meter (10) detects that the liquid level rises to a second preset liquid level, the control device (13) controls the first control valve (2) to be closed and the second control valve (4) to be opened;
after the liquid level meter (10) detects that the liquid level rises to a third preset liquid level, the control device (13) controls the second control valve (4) to be closed;
the height of the third preset liquid level is greater than that of the second preset liquid level, and the height of the second preset liquid level is greater than that of the first preset liquid level.
3. The automatic medicament adding device according to claim 2, wherein the first control valve (2), the second control valve (4) and the third control valve (6) are all pneumatic control valves, and the pneumatic control valves are connected with the control device (13).
4. The automatic medicine adding device according to claim 2, further comprising an air compressor (11) connected to the medicine dissolving tank (3) so as to perform air blast stirring of the medicine solution in the medicine dissolving tank (3).
5. The automatic medicine adding device according to any one of claims 2 to 4, wherein the end of the medicine adding pipeline (7) is provided with at least two medicine adding pipeline branches (71), each medicine adding pipeline branch (71) is provided with a fourth control valve (9) for controlling on-off, and the fourth control valve (9) is connected with the control device (13).
6. The automatic drug adding device according to claim 5, wherein a flow meter (8) for adjusting a flow rate is provided on the drug adding line branch line (71).
7. The automatic reagent adding device according to claim 6, wherein a mixer (12) is provided on at least one of the reagent feeding line branches (71) so that the reagent solution is sufficiently mixed with the sludge.
8. The automatic medicine adding device according to claim 7, wherein the number of the medicine adding pumps (5) is two, and the two medicine adding pumps (5) are connected in parallel between the medicine dissolving tank (3) and the medicine adding pipeline (7).
9. The automatic medicine adding device according to claim 7, wherein the number of the medicine dissolving tanks (3) is at least two, and when the liquid level in any one medicine dissolving tank (3) is reduced to a first preset liquid level, the control device (13) controls the corresponding third control valve (6) to be closed and the corresponding third control valves (6) of the other medicine dissolving tanks (3) to be opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020399418.5U CN212687659U (en) | 2020-03-25 | 2020-03-25 | Automatic medicament adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020399418.5U CN212687659U (en) | 2020-03-25 | 2020-03-25 | Automatic medicament adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212687659U true CN212687659U (en) | 2021-03-12 |
Family
ID=74892426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020399418.5U Active CN212687659U (en) | 2020-03-25 | 2020-03-25 | Automatic medicament adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212687659U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115268519A (en) * | 2022-07-26 | 2022-11-01 | 中粮糖业辽宁有限公司 | Screening redissolved sugar automatic control system |
-
2020
- 2020-03-25 CN CN202020399418.5U patent/CN212687659U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115268519A (en) * | 2022-07-26 | 2022-11-01 | 中粮糖业辽宁有限公司 | Screening redissolved sugar automatic control system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102838179A (en) | Control method for automatic drug adding device in sewage treatment system | |
| CN212687659U (en) | Automatic medicament adding device | |
| CN209476220U (en) | A kind of on-line automatic accurate matching system of solution | |
| CN201873558U (en) | Combined type full-automatic chemical adding device | |
| CN101185865A (en) | Automatic control method for hydrochloric acid solution dilution technique | |
| CN205127910U (en) | Automatic medicament feeding system | |
| CN202569975U (en) | Polyacrylamide emulsion automatic preparing device | |
| CN207680557U (en) | A kind of material proportion apparatus and system | |
| CN205517515U (en) | Urea solution dosing unit of pneumatic stirring | |
| CN210066360U (en) | Papermaking bactericide adding system | |
| CN207748843U (en) | A kind of automatic filling machine | |
| CN206911271U (en) | A kind of environmentally friendly medicament addition device of automatic mixing | |
| CN207385227U (en) | Tubular type medicament preparation facilities | |
| CN203411381U (en) | Chemical feeding multistage micro-adjustment and mixed adjustment box | |
| CN202087289U (en) | Multi-path liquid mixing system and liquid on-line mixing system | |
| CN211255401U (en) | PH adjusting device | |
| CN207745807U (en) | A kind of efficient automatic filling machine | |
| CN112742299A (en) | Solution proportioning device | |
| CN202880980U (en) | Improved lime milk solution dosing control device | |
| CN218088997U (en) | Utilize sled piece formula charge device of vacuum material loading technique | |
| CN207324275U (en) | One kind is applied to high-efficiency thickener flocculant add-on system | |
| CN205381998U (en) | Intelligent emulsion medicine system | |
| CN215842742U (en) | Chemical additive and main material accurate mixing proportioning system | |
| CN203725039U (en) | Automatic compounding and discharging system of water reducing agent | |
| CN215611315U (en) | Solution proportioning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |