CN212732121U - PH adjusting device of polyether product - Google Patents
PH adjusting device of polyether product Download PDFInfo
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- CN212732121U CN212732121U CN202020799833.XU CN202020799833U CN212732121U CN 212732121 U CN212732121 U CN 212732121U CN 202020799833 U CN202020799833 U CN 202020799833U CN 212732121 U CN212732121 U CN 212732121U
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- reaction kettle
- detection tank
- meter
- controller
- polyether product
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Abstract
The utility model relates to a pH adjusting device of polyether products, which comprises a reaction kettle, a detection tank, a controller and a pH meter; a pH regulator inlet is formed in the reaction kettle; a stop valve and a flow meter are arranged at the inlet of the pH regulator; the feed inlet of the detection tank is connected with the sampling port of the reaction kettle, and the top cover of the detection tank is provided with a hole; the pH meter can be inserted into a hole on the top cover of the detection tank; the discharge hole of the detection tank is connected with one feed inlet of the reaction kettle; the controller is connected with the pH meter, the stop valve and the flow meter. The device realizes the automatic control of the pH value adjustment of the polyether product, reduces the error occurrence probability and the labor intensity of workers, can completely recover the reaction liquid with the tested pH value, and improves the economic benefit.
Description
Technical Field
The utility model relates to a pH value adjusts the field among the chemical production, especially relates to a pH adjusting device of polyether product.
Background
Methallyl alcohol polyoxyethylene ether, chemical structure: CH (CH)2＝C(CH3)CH2O(CH2CH2O)nH, the series of products are non-toxic and non-irritant, have good water solubility, cannot be hydrolyzed and deteriorated, and have good intermiscibility with various components. The polycarboxylate superplasticizer synthesized by taking methallyl alcohol polyoxyethylene ether as a macromonomer has high-efficiency particle dispersing performance and retention capacity, low mixing amount, high water reduction, good reinforcing effect, good durability, no corrosion to reinforcing steel bars, environmental protection and the likeAnd the like.
The preparation of methallyl alcohol polyoxyethylene ether is industrially carried out mainly by the polymerization of methallyl alcohol and Ethylene Oxide (EO). After the polymerization reaction of the methallyl alcohol and the ethylene oxide is finished, a pH regulator needs to be added for neutralization, and a finished product of the methallyl alcohol polyoxyethylene ether is obtained. In the production process, the pH adjusting process of the polyether product comprises the following steps: manually discharging the liquid sample from the sampling point into a container, measuring the pH value of the liquid sample by using a pH meter or pH test paper, and adjusting the adding amount of the pH regulator according to the pH value until the pH value of the polyether product reaches a specified range. The existing detection process is a complete intermittent process, depends on manual operation, easily causes the pH value of a polyether product not to reach the standard, and has low efficiency of manually adjusting the pH value during large-scale production.
Disclosure of Invention
The utility model discloses a main aim at provides a pH adjusting device of polyether product, solves artifical pH value's inefficiency in the current production, the problem that the pH value of product is not up to standard easily.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: a pH adjusting device for polyether products comprises a reaction kettle, a detection tank, a controller and a pH meter; a pH regulator inlet is formed in the reaction kettle; a stop valve and a flow meter are arranged at the inlet of the pH regulator; the feed inlet of the detection tank is connected with the sampling port of the reaction kettle, and the top cover of the detection tank is provided with a hole; the pH meter can be inserted into a hole on the top cover of the detection tank; the discharge hole of the detection tank is connected with one feed inlet of the reaction kettle; the controller is connected with the pH meter, the stop valve and the flow meter.
In the preferred scheme, the reaction kettle is a reaction kettle with a stirring device and a heat-insulating layer. The reaction kettle with the stirring device is beneficial to the rapid uniform mixing and neutralization of the polyether and the pH regulator. The reaction kettle is provided with an insulating layer for preventing the crystallization and solidification of polyether at low temperature.
In a preferred scheme, a liquid level meter is arranged on the detection tank; the detection tank is provided with a heat insulation layer. The convenient sample volume of confirming of level gauge, the survey pH value of being convenient for, the detection jar has the heat preservation to prevent that the crystallization of polyether solidifies when the low temperature.
In the preferred scheme, a transfer pump is arranged on a connecting pipeline between a discharge port of the detection tank and a feed port of the reaction kettle.
In a preferred scheme, the controller is a PLC controller.
In the preferred scheme, the connecting pipeline between the detection tank and the reaction kettle is provided with a heat-insulating layer, so that the crystallization and solidification of polyether at low temperature are prevented.
Preferably, the stop valve is a pneumatic valve or an electric valve.
The utility model has the advantages that: through the control of the PLC, the opening degree of the pH regulator inlet stop valve and the flow of the flowmeter are adjusted by using the detected pH value, so that the automatic control of the pH value adjustment of the polyether product is realized, the error occurrence probability and the labor intensity of workers are reduced, the reaction liquid with the tested pH value can be completely recovered, and the economic benefit is improved.
Drawings
FIG. 1 is a pH adjusting device for polyether products;
in the figure: reaction kettle 1, detection tank 2, controller 3, pH meter 4, pH regulator entry 5, transfer pump 6, level gauge 7, stop valve 8, flowmeter 9.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1, a pH adjusting device for polyether products comprises a reaction kettle 1, a detection tank 2, a controller 3 and a pH meter 4; a pH regulator inlet 5 is arranged on the reaction kettle 1; a stop valve 8 and a flow meter 9 are arranged at the pH regulator inlet 5; the feed inlet of the detection tank 2 is connected with the sampling port of the reaction kettle 1, and a hole is formed in the top cover of the detection tank 2; the pH meter 4 can be inserted into a hole on the top cover of the detection tank 2; the discharge hole of the detection tank 2 is connected with one feed inlet of the reaction kettle 1; the controller 3 is connected with a pH meter 4, a stop valve 8 and a flow meter 9.
In a preferred scheme, the reaction kettle 1 is a reaction kettle with a stirring device and a heat-insulating layer.
In a preferable scheme, a liquid level meter 7 is arranged on the detection tank 2; the detection tank 2 is provided with a heat preservation layer.
In the preferred scheme, a transfer pump 6 is arranged on a connecting pipeline between a discharge hole of the detection tank 2 and a feed inlet of the reaction kettle 1.
In a preferred embodiment, the controller 3 is a PLC controller.
In the preferred scheme, a connecting pipeline between the detection tank 2 and the reaction kettle 1 is provided with a heat-insulating layer.
Preferably, the stop valve 8 is a pneumatic valve or an electric valve.
The implementation process is as follows:
transferring a certain amount of methallyl alcohol polyoxyethylene ether into a reaction kettle 1, starting a stirring device of the reaction kettle 1, opening a stop valve 8 through a controller 3, and allowing a part of solid oxalic acid (pH regulator) to enter the reaction kettle 1 to neutralize the pH of the methallyl alcohol polyoxyethylene ether. The stop valve at the sampling port of the reaction kettle 1 is opened, and the sample enters the detection tank 2. When the liquid level meter 7 displays that the sample amount reaches the testable range, the stop valve at the sampling port is closed, and the pH meter 4 is inserted into the detection tank 2 to test the pH value of the sample. After the pH value is tested, a stop valve at a discharge port of the detection tank 2 is opened, and the transfer pump 6 is started to return the sample to the reaction kettle 1. If the tested pH value is larger than the set value, the stop valve 8 is opened through the controller 3, and the flow meter 9 is controlled through the pH value difference value, so that the solid oxalic acid enters the reaction kettle 1; if the pH value is less than the set value, the stop valve 8 and the flowmeter 9 are closed through the controller 3, so that the pH value of the methallyl alcohol polyoxyethylene ether in the reaction kettle 1 reaches the specified range.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (7)
1. A pH adjusting device of polyether product, its characterized in that: comprises a reaction kettle (1), a detection tank (2), a controller (3) and a pH meter (4);
a pH regulator inlet (5) is arranged on the reaction kettle (1); a stop valve (8) and a flow meter (9) are arranged at the pH regulator inlet (5); the feed inlet of the detection tank (2) is connected with the sampling port of the reaction kettle (1), the discharge outlet of the detection tank (2) is connected with one feed inlet of the reaction kettle (1), and a hole is formed in the top cover of the detection tank (2); the pH meter (4) can be inserted into a hole on the top cover of the detection tank (2); the controller (3) is connected with the pH meter (4), the stop valve (8) and the flow meter (9).
2. The device for adjusting pH of polyether product according to claim 1, wherein: a stirring device is arranged in the reaction kettle (1); and a heat-insulating layer is arranged on the wall of the reaction kettle (1).
3. The device for adjusting pH of polyether product according to claim 1, wherein: a liquid level meter (7) is arranged on the detection tank (2); and a heat-insulating layer is arranged on the wall of the detection tank (2).
4. The device for adjusting pH of polyether product according to claim 1, wherein: and a transfer pump (6) is arranged on a connecting pipeline between the discharge port of the detection tank (2) and the feed inlet of the reaction kettle (1).
5. The device for adjusting pH of polyether product according to claim 1, wherein: the controller (3) is a PLC controller.
6. The device for adjusting pH of polyether product according to claim 1, wherein: and a heat-insulating layer is arranged on the pipe wall of the connecting pipeline between the detection tank (2) and the reaction kettle (1).
7. The device for adjusting pH of polyether product according to claim 1, wherein: the stop valve (8) is a pneumatic valve or an electric valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020799833.XU CN212732121U (en) | 2020-05-14 | 2020-05-14 | PH adjusting device of polyether product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020799833.XU CN212732121U (en) | 2020-05-14 | 2020-05-14 | PH adjusting device of polyether product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212732121U true CN212732121U (en) | 2021-03-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020799833.XU Active CN212732121U (en) | 2020-05-14 | 2020-05-14 | PH adjusting device of polyether product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212732121U (en) |
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2020
- 2020-05-14 CN CN202020799833.XU patent/CN212732121U/en active Active
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