CN212989132U - Acid resistance performance detection device for coal mine filling material - Google Patents
Acid resistance performance detection device for coal mine filling material Download PDFInfo
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- CN212989132U CN212989132U CN202022327710.9U CN202022327710U CN212989132U CN 212989132 U CN212989132 U CN 212989132U CN 202022327710 U CN202022327710 U CN 202022327710U CN 212989132 U CN212989132 U CN 212989132U
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Abstract
The utility model relates to a colliery filling material corrosion resistance test equipment field specifically is a colliery filling material acid-fast performance detection device, and detection device includes: the two ends of the corrosion box are circularly communicated with circulating pipes, and a thermometer and an automatic temperature control heating rod are arranged on the corrosion box; the acid storage tank is fixedly arranged above the corrosion box, the acid storage tank is communicated with a dropper, the tail end of the dropper is communicated with the inside of the corrosion box, a corrosion-resistant electromagnetic valve is arranged on the dropper, the electromagnetic valve is electrically connected with a PH automatic controller, the tail end of the PH automatic controller is provided with a PH detection probe, and the PH detection probe is positioned in the corrosion box; the storage rack is arranged at the bottom of the corrosion box; the flow velocity meter is communicated with the corrosion tank, and the acid-resistant diaphragm pump is arranged on a circulating pipe at the right end of the corrosion tank. The utility model discloses simple structure, convenient operation, the practicality is strong, can carry out filling material corrosion resisting property's evaluation in most laboratories.
Description
Technical Field
The invention belongs to the technical field of detection equipment, and particularly relates to a device for detecting acid resistance of a coal mine filling material.
Background
The coal mine filling mining method can effectively control the migration of the overlying strata, protect ground structures, aquifers and surface water systems from being damaged by mining influence, provides an effective solution for 'three lower' and water-retention mining of coal mines, and is a green mining method. The filling material is prepared by taking cement and active admixture as cementing material, coal gangue, river sand and the like as aggregate and adding various additives, and the working performance and the mechanical property of the filling material have important influence on the implementation effect of filling mining.
After the filling material is filled into the coal mine goaf, the filling material can be soaked in slowly flowing mine water for a long time under the influence of water seepage of a roof. Sulfide minerals in overlying rock (coal) layers of coal mines are contacted with water and oxygen, and through a series of complex chemical reactions, acidic mine water is generated, and the acidic mine water can destroy crystals and gel in a filling body, reduce the compressive strength of the filling body and finally cause instability and destruction of the filling body. The corrosion effect of mine acidic water on a filling body needs to be researched, the factors such as the pH value, the flow speed and the water temperature of the mine acidic water need to be considered, the factors are kept constant in the experimental process, and then the influence of the factors can be respectively researched by adopting a single-factor experimental method, but at present, the commercially available experimental instruments cannot meet the requirements, and the smooth development of experiments is hindered.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
The utility model provides a not enough to prior art exists, the utility model provides a colliery filling material acid resistance performance detection device can simulate the acid water environment that the colliery goaf obturator is located, synthesizes the influence of factors such as pH value, velocity of flow, temperature of surveying the mine water to the obturator to provide experimental data support for guaranteeing obturator structure safety.
The technical scheme of the utility model is realized like this:
a coal mine filling material acid resistance performance detection device, the detection device includes:
the two ends of the corrosion box are circularly communicated with circulating pipes, and a thermometer and an automatic temperature control heating rod are arranged on the corrosion box;
the acid storage tank is fixedly arranged above the corrosion box, the acid storage tank is communicated with a dropper, the tail end of the dropper is communicated with the inside of the corrosion box, a corrosion-resistant electromagnetic valve is arranged on the dropper, the electromagnetic valve is electrically connected with a PH automatic controller, a PH detection probe is arranged at the tail end of the PH automatic controller, and the PH detection probe is positioned in the corrosion box;
the shelf is arranged at the bottom of the corrosion box;
the flow meter is fixed on the corrosion box, and the tail end of the flow meter is provided with a rotating blade;
the manual valve is arranged on the circulating pipe at the left end of the corrosion box;
the acid-proof diaphragm pump is arranged on the circulating pipe at the right end of the corrosion box;
according to the device for detecting the acid resistance of the coal mine filling material, as a preferable scheme, the dropper and the circulating pipe are both of a hard structure.
The device for detecting the acid resistance of the coal mine filling material is characterized in that the measurement range of the flow velocity meter is 0.01-4 m/s.
According to the device for detecting the acid resistance of the coal mine filling material, as a preferable scheme, the dropper and the circulating pipe are both of a glass structure.
According to the device for detecting the acid resistance of the coal mine filling material, as a preferred scheme, the measurement precision of the PH detection probe 7 is less than or equal to 0.05, and the control range of the PH automatic controller is 0-14.
According to the device for detecting the acid resistance of the coal mine filling material, as a preferable scheme, the upper surface of the storage rack is a 304 stainless steel net, and the wire diameter of the stainless steel net is not more than 2 mm.
According to the acid resistance detection device for the coal mine filling material, as an optimal scheme, the temperature control range of the automatic temperature control heating rod is 20-40 ℃, and the automatic temperature control heating rod is made of 304 stainless steel.
Compared with the closest prior art, the technical scheme provided by the invention has the following excellent effects:
the utility model discloses a detection device can simulate the colliery and go up goaf real environment, can consider the influence of multiple factors such as PH value, velocity of flow, temperature of mine water simultaneously to adopt the influence law of single factor experiment method to obtain each factor. This detection device can adjust solution pH valve through PH automatic control ware, through manual valve regulation flow rate, through automatic temperature control heating rod temperature regulation to guarantee that each item factor is the definite value all the time, the test result more accords with the actual conditions. The structural parts of the device are made of corrosion-resistant materials, so that the safety and reliability of the experiment are ensured, and the result is real and effective.
Drawings
Fig. 1 is a schematic plan view of the present invention;
fig. 2 is a schematic partial cross-sectional view of the present invention.
In the figure: 1. a corrosion box; 2. a current meter; 3. an acid storage tank; 4. a corrosion-resistant electromagnetic valve; 5. a dropper; 6. a pH automatic controller; 7. a PH detection probe; 8. a manual valve; 9. a rack; 10. an automatic temperature control heating rod; 11. a circulation pipe; 12. an acid-resistant diaphragm pump; 13. a thermometer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
As shown in fig. 1-2, the utility model provides a coal mine filling material acid resistance performance detection device, detection device includes:
the automatic temperature control corrosion device comprises a corrosion box 1, wherein circulating pipes 11 are circularly communicated with two ends of the corrosion box 1, a thermometer 13 and an automatic temperature control heating rod 10 are arranged on the corrosion box 1, the temperature control range of the automatic temperature control heating rod 10 is 20-40 ℃, and the automatic temperature control heating rod 10 is made of 304 stainless steel.
Store up acid tank 3, store up acid tank 3 fixed setting in the top of corroding case 1, it has burette 5 to store up acid tank 3 intercommunication, burette 5's end communicates in corroding case 1, be provided with corrosion resistant solenoid valve 4 on burette 5, the solenoid valve is connected with PH automatic control 6, PH automatic control 6's end is provided with PH test probe 7, PH test probe 7 is located corrodes case 1, PH automatic control 6 is used for adjusting the pH value of acid water, burette 5 is the stereoplasm structure with circulating pipe 11, burette 5 and circulating pipe 11 all can be the glass structure when concrete implementation, the mobile developments of acid water can also be observed to burette 5 and circulating pipe 11 through the glass structure. The measurement precision of the PH detection probe 7 is less than or equal to 0.05, and the control range of the PH automatic controller 6 is 0-14. The PH automatic controller 6 in the present application may be a controller of FK-PH162 type.
The current meter 2 is fixed on the corrosion box 1, the tail end of the current meter 2 is provided with a rotating blade, and the measuring range of the current meter 2 is 0.01-4 m/s. The flow meter 2 is used for measuring the flow rate of the acidic water. The flowmeter 2 in the present application may be a flowmeter model LS 300A.
And the manual valve 8, the manual valve 8 is arranged on a circulating pipe 11 at the left end of the corrosion tank 1, and the manual valve 8 is used for adjusting the flow rate of the acidic water.
An acid-proof diaphragm pump 12, the acid-proof diaphragm pump 12 is arranged on a circulating pipe 11 at the right end of the corrosion tank 1.
The working process of the detection device is as follows:
placing the three filling material test blocks on a storage rack 9, pouring a proper amount of distilled water into the corrosion box 1, and adjusting a pH automatic controller 6 according to the actual pH value of the mine water, so that the concentrated acid in the acid storage tank 3 is injected into the corrosion box 1, and the pH value of the solution reaches a stable value; according to the actual measured flow rate value of the mine water, the manual valve 8 is adjusted, and the flow meter 2 is observed to set the flow rate of the solution; according to the actual temperature of the mine water, the automatic temperature control heating rod 10 is adjusted, and the thermometer 13 is observed, so that the solution reaches a constant temperature. When the sample is corroded for a certain period of time, the sample is taken out to measure the mass and the compressive strength of the sample. In the experimental process, one factor can be set as a variable, and the other factors are set as fixed values, so that the influence rule of the factors is analyzed.
To sum up, the detection device can simulate the real environment of the underground goaf of the coal mine, can simultaneously consider the influence of various factors such as the pH value, the flow velocity, the water temperature and the like of mine water, and obtains the influence rule of each factor by adopting a single-factor experimental method. This detection device can adjust solution pH valve through PH automatic control 6, adjusts the velocity of flow through manual valve 8, through automatic temperature control heating rod 10 temperature regulation to guarantee that each item factor is the definite value all the time, the testing result more accords with the actual conditions. The structural parts of the device are made of corrosion-resistant materials, so that the safety and reliability of the experiment are ensured, and the result is real and effective.
The above description is only exemplary of the invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the invention is intended to be covered by the appended claims.
Claims (7)
1. The utility model provides a coal mine filling material acid resistance performance detection device which characterized in that, detection device includes:
the two ends of the corrosion box are circularly communicated with circulating pipes, and a thermometer and an automatic temperature control heating rod are arranged on the corrosion box;
the acid storage tank is fixedly arranged above the corrosion box, the acid storage tank is communicated with a dropper, the tail end of the dropper is communicated with the inside of the corrosion box, a corrosion-resistant electromagnetic valve is arranged on the dropper, the electromagnetic valve is electrically connected with a PH automatic controller, a PH detection probe is arranged at the tail end of the PH automatic controller, and the PH detection probe is positioned in the corrosion box;
the shelf is arranged at the bottom of the corrosion box;
the flow meter is arranged on the corrosion box, and the tail end of the flow meter is provided with a rotating blade;
the manual valve is arranged on the circulating pipe at the left end of the corrosion box;
and the acid-proof diaphragm pump is arranged on the circulating pipe at the right end of the corrosion box.
2. The coal mine filling material acid resistance detection device as claimed in claim 1, wherein the dropper and the circulation tube are both hard structures.
3. The device for detecting the acid resistance of the coal mine filling material according to claim 1, wherein the measurement range of the flow velocity meter is 0.01-4 m/s.
4. The coal mine filling material acid resistance detection device as claimed in claim 2, wherein the dropper and the circulation tube are both glass structures.
5. The device for detecting the acid resistance of the coal mine filling material according to claim 1, wherein the measurement precision of the PH detection probe is less than or equal to 0.05, and the control range of the PH automatic controller is 0-14.
6. The acid resistance detection device for coal mine filling materials as claimed in claim 1, wherein the upper surface of the storage rack is a 304 stainless steel net, and the wire diameter of the stainless steel net is not more than 2 mm.
7. The acid resistance detection device for the coal mine filling material according to claim 1, wherein the temperature control range of the automatic temperature control heating rod is 20-40 ℃, and the material of the automatic temperature control heating rod is 304 stainless steel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022327710.9U CN212989132U (en) | 2020-10-19 | 2020-10-19 | Acid resistance performance detection device for coal mine filling material |
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| CN202022327710.9U CN212989132U (en) | 2020-10-19 | 2020-10-19 | Acid resistance performance detection device for coal mine filling material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113533183A (en) * | 2021-07-15 | 2021-10-22 | 南宁师范大学 | Corrosion detection device and detection method for inorganic cementing material in flowing karst water |
| CN113552052A (en) * | 2021-07-02 | 2021-10-26 | 广东省粤钢新材料科技有限公司 | Corrosion-resistant stainless steel material acid and alkali resistance intelligent monitoring equipment |
-
2020
- 2020-10-19 CN CN202022327710.9U patent/CN212989132U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113552052A (en) * | 2021-07-02 | 2021-10-26 | 广东省粤钢新材料科技有限公司 | Corrosion-resistant stainless steel material acid and alkali resistance intelligent monitoring equipment |
| CN113552052B (en) * | 2021-07-02 | 2024-05-24 | 广东省粤钢新材料科技有限公司 | Corrosion-resistant stainless steel material acid and alkali-resistant intelligent monitoring equipment |
| CN113533183A (en) * | 2021-07-15 | 2021-10-22 | 南宁师范大学 | Corrosion detection device and detection method for inorganic cementing material in flowing karst water |
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