CN203069471U - Device for testing water absorption performance of coal - Google Patents
Device for testing water absorption performance of coal Download PDFInfo
- Publication number
- CN203069471U CN203069471U CN 201220720132 CN201220720132U CN203069471U CN 203069471 U CN203069471 U CN 203069471U CN 201220720132 CN201220720132 CN 201220720132 CN 201220720132 U CN201220720132 U CN 201220720132U CN 203069471 U CN203069471 U CN 203069471U
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- pressure
- bearing tube
- coal
- water inlet
- valve
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Abstract
The utility model relates to a device for testing water absorption performance of coal. The device is characterized by comprising a pressure-bearing barrel, wherein a seal head is arranged on the arc surface of the head of the pressure-bearing barrel; the seal head is sealed by employing a sealing ring and is fixedly connected with the pressure-bearing barrel through a bolt; a horizontal meshed bracket is arranged in the pressure-bearing barrel; the bottom of the pressure-bearing barrel is provided with a drainage hole with a control valve; the drainage hole is connected with a water tank through a pipeline; the side wall of the tail of the pressure-bearing barrel is provided with a water inlet with a control valve; a pressure gage used for monitoring the water injection pressure in the pressure-bearing barrel is arranged at the water inlet; the water inlet is connected with the water tank through the pipeline; the top of the pressure-bearing barrel is provided with an air exhaust with an air exhaust valve and a pressurization port with a pressure valve at an interval; and the pressurization port is connected with a pressurization pump through a high-pressure pipeline. The device can be widely applied to the test of water absorption performance of water injection solution coal of different water injection pressures in labs.
Description
Technical field
The utility model relates to a kind of proving installation, particularly about a kind of coal water absorbing properties proving installation.
Background technology
Coal seam water infusion is given prominence to gas as dust suppression in mine, control rock burst and coal and major industry measure such as softening hard coal, widespread use in Coal Production.Investigation shows: although coal seam water infusion is one of most important " one through three prevention " technical measures, owing to the many-sided reason of attention degree, technical merit and management of water equality, do not bring into play its due effect so far as yet.Coal is porous medium, contains a large amount of cracks and hole, and coal seam water infusion will be through the seepage flow in the cracks in coal seam, the process such as wetting on the diffusion in the micropore and coal surface.Many scholars have carried out comparatively detailed research to microscopic mechanism, water percolation law, interpolation surfactant, magnetized water, water evaporates, hydraulic fracturing anti-reflection, the water filling of coal planar water in the coal seam water infusion to problems such as coal absorption-desorption gas influences.But because condition restriction, during China generally adopts, the low pressure water injection mode, this method is difficult to wetting coal body effectively, has a strong impact on coal seam infusion effect.
Summary of the invention
At the problems referred to above, the purpose of this utility model provides a kind of suction experiment can finished under different pressures (maximum pressure 12MPa) and aqueous conditions (interpolation surfactant), and obtains the coal water absorbing properties proving installation of the coal body water-intake rate under the different condition.
For achieving the above object, the utility model is taked following technical scheme: a kind of coal water absorbing properties proving installation, it is characterized in that: it comprises a pressure-bearing tube, described pressure-bearing tube head arc surface is provided with an end socket, and described end socket adopts the O-ring seal sealing and fixedlys connected with described pressure-bearing tube by bolt; Described pressure-bearing tube inside is provided with a horizontal mesh carriage, and the bottom of described pressure-bearing tube is provided with one and has the freeing port of operation valve, and described freeing port connects a tank by pipeline; Described pressure-bearing tube afterbody sidewall is provided with a water inlet with operation valve, and described water inlet is provided with a tensimeter that is used for water injection pressure in the monitoring pressure-bearing tube, and described water inlet connects described tank by pipeline; Described pressure-bearing tube top is arranged at intervals with the pressurization mouth that an exhausr port and with vent valve has pressure valve, and described pressurization mouth connects a force (forcing) pump by high pressure line.
Described end socket adopts the O-ring seal sealing and fixedlys connected with described pressure-bearing tube by bolt locking.
Described water inlet and freeing port adopt brake type valve control.
Described water inlet and freeing port adopt spherical valve control.
The utility model is owing to take above technical scheme, and it has the following advantages: 1, the utility model also is provided with tensimeter at water inlet simultaneously owing to all adopt valve control at osculum and water inlet, therefore can conveniently control the water injection pressure in the pressure-bearing tube.2, therefore the utility model can conveniently control the water filling exhaust of pressure-bearing tube owing to be provided with vent valve at exhausr port.3, the utility model is owing to be provided with pressure valve at the pressurization mouth, and it is constant therefore to carry out in the applied voltage test pressure-bearing tube being keep-uped pressure at the pressure-bearing tube.4, therefore the utility model makes coal sample obtain good test mode in the pressure-bearing tube owing to be provided with the horizontal mesh dividing plate in the pressure-bearing tube, can also test bulk coal sample water absorbing properties simultaneously.5, the utility model proving installation project organization is simple, and is easy to operate.The utility model can be widely used among the water absorbing properties test of laboratory different injection pressure, water filling solution coal.
Description of drawings
Fig. 1 is the utility model structural representation
Embodiment
Below in conjunction with drawings and Examples the utility model is described in detail.
As shown in Figure 1, the utility model comprises a pressure-bearing tube 1, and pressure-bearing tube 1 head arc surface is provided with an end socket 2, and end socket 2 adopts the O-ring seal sealing and fixedlys connected with pressure-bearing tube 1 by bolt.Pressure-bearing tube 1 inside is provided with a horizontal mesh carriage 3, and the bottom of pressure-bearing tube 1 is provided with one and has the freeing port 5 of spherical valve 4 controls, and freeing port 5 connects a tank 6 by pipeline.Pressure-bearing tube 1 afterbody sidewall is provided with one and has the water inlet 8 that spherical valve 7 is controlled, and water inlet 8 places are provided with a tensimeter 9 for water filling situation in the monitoring pressure-bearing tube 1, and water inlet 8 connects tank 6 by pipeline.Pressure-bearing tube 1 top is arranged at intervals with the pressurization mouth 13 that an exhausr port 11 and with vent valve 10 has pressure valve 12, and pressurization mouthfuls 13 connects a force (forcing) pump 14 by high pressure line.
In above-described embodiment, water inlet 8 and freeing port 5 also can be passed through brake type valve or other structure control Inlet and outlet water.
The utility model course of work may further comprise the steps:
1) dry block test coal sample is weighed, record coal sample initial weight, the end socket 2 of opening pressure-bearing tube 1 is piled up coal sample successively in certain sequence in pressure-bearing tube 1 and on the netted carriage 3, by bolt end socket 2 is obturaged;
2) with 5 drainings of spherical valve 4 closing control freeing port, open exhausr port 11 by vent valve 10 simultaneously, opening the spherical valve 7 of control water inlet 8 pours water in pressure-bearing tube 1, observe exhausr port 11, when having liquid to overflow, exhausr port 11 is full of liquid in the pressure-bearing tube 1, this moment, closing control water inlet 8 spherical valve cut out the vent valve 10 of exhausr port 11 simultaneously;
3) open the pressure valve 12 of control pressurization mouthfuls 13, be forced into the pressure that experiment sets in the pressure-bearing tube 1 by force (forcing) pump 14 and stop, closing the pressure valve 12 of pressurization mouthfuls 13, make coal sample in pressure-bearing tube 1, absorb water under the state of given test pressure saturated;
4) open the vent valve 10 of exhausr port 11, open the spherical valve 4 of control freeing port 5 simultaneously, make that water all flow back in the tank 6 through freeing port 5 in the pressure-bearing tube 1 by pipeline;
5) open the end socket 2 of pressure-bearing tube 1, take out coal sample respectively successively in turn, order is carried out coal sample and is weighed successively again, and calculates successively according to the water-intake rate of each coal sample, and its computing formula is:
In the formula, δ is the water-intake rate % of coal sample; W
tBe the weight g after the coal sample suction; W
oFor dry coal sample weight g, record and calculate the result successively, namely finish test of the present utility model.
The various embodiments described above only are used for explanation the utility model; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents and improvement of carrying out on the basis of technical solutions of the utility model all should do not got rid of outside protection domain of the present utility model.
Claims (4)
1. coal water absorbing properties proving installation, it is characterized in that: it comprises a pressure-bearing tube, and described pressure-bearing tube head arc surface is provided with an end socket, and described end socket adopts the O-ring seal sealing and fixedlys connected with described pressure-bearing tube by bolt; Described pressure-bearing tube inside is provided with a horizontal mesh carriage, and the bottom of described pressure-bearing tube is provided with one and has the freeing port of operation valve, and described freeing port connects a tank by pipeline; Described pressure-bearing tube afterbody sidewall is provided with a water inlet with operation valve, and described water inlet is provided with a tensimeter that is used for water injection pressure in the monitoring pressure-bearing tube, and described water inlet connects described tank by pipeline; Described pressure-bearing tube top is arranged at intervals with the pressurization mouth that an exhausr port and with vent valve has pressure valve, and described pressurization mouth connects a force (forcing) pump by high pressure line.
2. a kind of coal water absorbing properties proving installation as claimed in claim 1 is characterized in that: described end socket adopts the O-ring seal sealing and fixedlys connected with described pressure-bearing tube by bolt locking.
3. a kind of coal water absorbing properties proving installation as claimed in claim 1 or 2 is characterized in that: described water inlet and the control of freeing port employing brake type valve.
4. a kind of coal water absorbing properties proving installation as claimed in claim 1 or 2 is characterized in that: described water inlet and the control of freeing port employing spherical valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220720132 CN203069471U (en) | 2012-12-21 | 2012-12-21 | Device for testing water absorption performance of coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220720132 CN203069471U (en) | 2012-12-21 | 2012-12-21 | Device for testing water absorption performance of coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203069471U true CN203069471U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220720132 Expired - Fee Related CN203069471U (en) | 2012-12-21 | 2012-12-21 | Device for testing water absorption performance of coal |
Country Status (1)
| Country | Link |
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| CN (1) | CN203069471U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122380A (en) * | 2014-07-08 | 2014-10-29 | 山东科技大学 | Novel coal rock water absorption rate determination device |
| CN106198298A (en) * | 2016-08-29 | 2016-12-07 | 长安大学 | A kind of negative pressure water absorber of material |
| CN106771048A (en) * | 2016-12-29 | 2017-05-31 | 山东科技大学 | The high pressure water enchroachment (invasion) pore structure water content test system of raw coal containing gas and method |
| CN108168978A (en) * | 2018-01-12 | 2018-06-15 | 西安科技大学 | Coal sample manual humidification's quantification control method and device |
| CN110261544A (en) * | 2019-06-19 | 2019-09-20 | 中冶赛迪工程技术股份有限公司 | A kind of blast furnace smashes material water absorption rate detection device and detection method with charcoal |
| CN110261544B (en) * | 2019-06-19 | 2024-07-30 | 中冶赛迪工程技术股份有限公司 | Device and method for detecting water absorption rate of carbon ramming material for blast furnace |
-
2012
- 2012-12-21 CN CN 201220720132 patent/CN203069471U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104122380A (en) * | 2014-07-08 | 2014-10-29 | 山东科技大学 | Novel coal rock water absorption rate determination device |
| CN104122380B (en) * | 2014-07-08 | 2016-01-20 | 山东科技大学 | A kind of method measuring coal petrography water-intake rate |
| CN106198298A (en) * | 2016-08-29 | 2016-12-07 | 长安大学 | A kind of negative pressure water absorber of material |
| CN106771048A (en) * | 2016-12-29 | 2017-05-31 | 山东科技大学 | The high pressure water enchroachment (invasion) pore structure water content test system of raw coal containing gas and method |
| CN106771048B (en) * | 2016-12-29 | 2019-04-09 | 山东科技大学 | The high pressure water enchroachment (invasion) pore structure water content test macro of raw coal containing gas and method |
| CN108168978A (en) * | 2018-01-12 | 2018-06-15 | 西安科技大学 | Coal sample manual humidification's quantification control method and device |
| CN110261544A (en) * | 2019-06-19 | 2019-09-20 | 中冶赛迪工程技术股份有限公司 | A kind of blast furnace smashes material water absorption rate detection device and detection method with charcoal |
| CN110261544B (en) * | 2019-06-19 | 2024-07-30 | 中冶赛迪工程技术股份有限公司 | Device and method for detecting water absorption rate of carbon ramming material for blast furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20151221 |
|
| EXPY | Termination of patent right or utility model |