CN203772574U - Borehole negative pressure deslagging coal seam fixed-point sampling experiment system - Google Patents
Borehole negative pressure deslagging coal seam fixed-point sampling experiment system Download PDFInfo
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- CN203772574U CN203772574U CN201420092961.5U CN201420092961U CN203772574U CN 203772574 U CN203772574 U CN 203772574U CN 201420092961 U CN201420092961 U CN 201420092961U CN 203772574 U CN203772574 U CN 203772574U
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Abstract
The utility model relates to a borehole negative pressure deslagging coal seam fixed-point sampling experiment system. The experiment system comprises a feeding device, a boring tool simulation device, a gas-solid separation device, a coal dust collecting device, a connecting device, a negative pressure power device and a transportation parameter measuring device, wherein the boring tool simulation device comprises a simulation boring rod formed by connecting a dynamic part and a static part in series and an equivalent boring head; two sides of the dynamic part are rotatably supported on a left fixing bracket and a right fixing bracket through bearings and are driven to rotate via a power and transmission mechanism; the feeding end of the dynamic part extends into a horizontal shell contained in the feeding device; the hollow equivalent boring head of which the bottom is opened is mounted at the front end of the dynamic part; the discharging end of the static part is communicated with the gas-solid separation device through the connecting device; the bottom of the gas-solid separation device is communicated with the coal dust collecting device through a valve; the top of the gas-solid separation device is communicated with the negative pressure power device through a pipeline; a negative pressure testing opening is formed in the connecting part of various segments of the simulation boring rods; and the transportation parameter measuring device comprises a pitot pipe mounted at the negative pressure testing opening, and a flowmeter and a precision vacuum gauge which are mounted on the pipeline at the top of the gas-solid separation device. The experiment system provided by the utility model is compact in structure and reasonable in design so as to provide a theoretical foundation for type selection design of equipment, and is convenient to operate and use, realizes time and labor conservation and is easy to implement.
Description
Technical field
The utility model relates to a kind of experimental system, particularly relate to a kind of boring negative pressure deslagging fixed point sampling of coal bed experimental system, be mainly used in modeling effort coal bed drilling deslagging spot sampling ickings transportation parameters, for boring negative pressure deslagging fixed point sampling of coal bed technology provides support.
Background technology
While measuring gas bearing capacity under existing coal mine, conventional sampling mode has aperture ickings sampling and the sampling of coal core pipe.Wherein, although aperture ickings sampling mode technique is simple, brush hole and the residual powder of hole wall are larger on measurement result impact; Coal core pipe sampling technique is long from taking out process complex procedures, sample time at the bottom of hole by coal core, whole process time and effort consuming, and gas wastage is large, samples effect poor, is difficult to meet standard-required.
Summary of the invention
The technical problems to be solved in the utility model is exactly the deficiency that overcomes above-mentioned existing coal seam gas-bearing capacity spot sampling technology, can accurately obtain the parameter such as negative pressure value, gas-solid ratio, pressure drop, air quantity in negative pressure tapping process and provide the boring negative pressure deslagging fixed point sampling of coal bed experimental system of theoretical foundation for lectotype selection design and provide a kind of.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of boring negative pressure deslagging fixed point sampling of coal bed experimental system, comprise feeding device, gas-solid separating device, ickings gathering-device, coupling arrangement and negative-pressure power system, and transportation parameters determinator, drilling tool analogue means comprises static part simulation drilling rod and the equivalent drill bit in series by dynamic part and at least one section, the both sides of dynamic part are rotatably supported on the fixed support of left and right by bearing, and by power and gear train driven rotary, the feed end of dynamic part extend in the contained horizontal housing of feeding device, and at its front end, the uncovered hollow equivalence drill bit in bottom is installed, and equivalent drill bit is positioned at the charging aperture below of feeding device, side and the portion of meeting head at equivalent drill bit are respectively equipped with charging hole, the discharge end of static part is communicated with gas-solid separating device by coupling arrangement, gas-solid separating device bottom is communicated with ickings gathering-device by valve, its top is communicated with negative-pressure power system by pipeline, be provided with air intake opening in the contained horizontal shell end of feeding device, be provided with negative pressure test port in the junction of each section of simulation drilling rod, described transportation parameters determinator comprises the pitot tube that is arranged on negative pressure test port, and be arranged on flowmeter and the precise vacuum table on gas-solid separating device top duct.
Between the dynamic part of described simulation drilling rod and static part, be fixedly connected with by swivel adapter head.
Described simulation drilling rod static part has multistage, and is fixedly cascaded by connecting short circuit between each section.
Described coupling arrangement is transparent wire rubber pipe, and is fixedly connected with by pipe collar.
The static part of described simulation drilling rod and equivalent drill bit all adopt polychloroethylene pipes to make.
Described revolving power mechanism is motor; Described rotating actuator is pulley transmission mechanism, comprises the first belt pulley that is sleeved on simulation drilling rod surface, is arranged on the second belt pulley of actuating unit output terminal, and for the driving belt of first, second belt pulley that is in transmission connection.
Described feeding device is air hermetic screw feeder.
Described gas-solid separating device is tornado dust collector.
Described ickings gathering-device is ickings collecting box.
Described negative-pressure power system is Roots vaccum pump.
Principle of work of the present utility model is:
The utility model uses feeding device to the contained equivalent drill bit of drilling tool analogue means position, evenly add ickings according to aequum, ickings falls near equivalent drill bit, the negative pressure of utilizing negative-pressure power system to produce, ickings is sucked in time and carried in the drilling tool analogue means of certain length, coal particle is collected through gas-solid separating device, utilizes parameter test device to investigate parameters such as flow system flow, negative pressure in whole process.When this experimental system is measured gas bearing capacity by simulation colliery DH negative pressure deslagging spot sampling, different gas-solid ratios, drilling rod internal diameter size, drill bit are crossed the conveying situation of ickings under wind size, for type selecting and the optimization of sampling equipment provide foundation.
The beneficial effect of technical solutions of the utility model is:
1, structurally, the utility model boring negative pressure deslagging fixed point sampling of coal bed experimental system feeding device adopts air hermetic screw feeder, can realize in system and evenly add aequum ickings, and reinforced process can be adjusted needed gas-solid ratio by negative-pressure power system; Described equivalent drill bit stays and establishes opening with reference to true drill bit opening parameter, can simulate the process drill hole inner wall of drill bit smear metal coal body, meet the material feeding function identical with true drill bit, this equivalence drill bit adopts polyvinyl chloride pipe to make simultaneously, can need in conjunction with test, change opening size, facilitates process and remould fast, cuts down finished cost; Simulation drilling rod static part adopts polyvinyl chloride pipe to make, and facilitates process and remould, cuts down finished cost; Be set with bearing in simulation drilling rod dynamic part both sides, and by power and gear train driven rotary, press close to true drilling rod motion state, the rotation of drilling rod while simulating more really construction drill under coal mine; Can change by adjusting transmission parameter the drilling speed of simulation drilling rod, easy for operation; Gas-solid separating device adopts tornado dust collector and is directly connected with ickings gathering-device, can effectively collect ickings.
2, structurally, between each section of simulation drilling rod static part described in the utility model, be connected by connecting short circuit, can facilitate fed distance adjustment; Parameter testing mouth is distributed in each section of simulation drilling rod junction, for parameters such as test run process negative pressure and flow velocitys, thereby grasps in real time transportation parameters; Parameter testing mouth stays establishes compactness, and measurement parameter is convenient; Described gas-solid separating device adopts tornado dust collector, and fly-ash separator bottom is provided with control valve, can ensure the sealing of fly-ash separator bottom in the time that system is moved, and in the time collecting solid particle, fly-ash separator bottom can be opened; Described equivalent drill bit is that the convenience that it can improve processing, cuts down finished cost according to down-hole drill bit physical size used and position of opening design processing.
3, to sum up, the utility model boring negative pressure deslagging fixed point sampling of coal bed experimental system compact conformation, reasonable in design, can simulate colliery DH negative pressure deslagging spot sampling mensuration gas bearing capacity time, different gas-solid ratios, drilling rod internal diameter size, drill bit are crossed the conveying situation of ickings under wind size, accurately obtain in negative pressure tapping process the parameters such as negative pressure value, gas-solid ratio, pressure drop, air quantity, thereby for lectotype selection design provides theoretical foundation, and easy for operation, time saving and energy saving, therefore, be very suitable for promotion and implementation.
Brief description of the drawings
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail, wherein:
Fig. 1 is the structural representation of the utility model boring negative pressure deslagging fixed point sampling of coal bed experimental system;
Fig. 2 is the structural representation of the utility model boring negative pressure deslagging fixed point sampling of coal bed experimental system equivalence drill bit;
Fig. 3 is the hole plan structure schematic diagram of negative pressure deslagging fixed point sampling of coal bed experimental system equivalence drill bit of Fig. 2;
Sequence number in figure: 1, screw feeder; 2, simulation drilling rod dynamic part; 7, simulation drilling rod static part; 3,5, rolling ball bearing; 4, the first belt pulley; 6, swivel adapter head; 8, pipe collar; 9, parameter testing mouth; 10, flowmeter; 11, precise vacuum table; 12, Roots vaccum pump; 13, tornado dust collector; 14, ickings collecting box; 16, motor; 15,17, fixed support; 18, equivalent drill bit, 19, charging hole, 20, transparent wire rubber pipe, 21, valve, 22, pipeline, 23, the second belt pulley, 24, driving belt.
embodiment
Embodiment mono-:
Referring to Fig. 1 (in figure, arrow represents the flow direction of material or gas), in figure, the utility model boring negative pressure deslagging fixed point sampling of coal bed experimental system, comprise feeding device, drilling tool analogue means, gas-solid separating device, ickings gathering-device and negative-pressure power system, and transportation parameters determinator, drilling tool analogue means comprises by dynamic part 2 and 7 two sections of simulation drilling rods that are cascaded of static part and equivalent drill bit 18, the both sides of drilling tool analogue means dynamic part are by rolling ball bearing 3, 5 are rotatably supported in left and right fixed support 15, on 17, and by power and gear train driven rotary, the feed end of drilling rod dynamic part extend in the contained horizontal housing of feeding device, and at its front end, equivalent drill bit 18 is installed, and equivalent drill bit is positioned at feeding device charging aperture below, the discharge end of drilling rod static part is communicated with gas-solid separating device by coupling arrangement, gas-solid separating device bottom is communicated with ickings gathering-device by valve 21, its top is communicated with negative-pressure power system by pipeline 22, be provided with air intake opening in the contained horizontal shell end of feeding device, junction at simulation drilling rod and coupling arrangement is provided with negative pressure test port 9, described transportation parameters determinator comprises the pitot tube (not shown) that is arranged on negative pressure test port, and be arranged on flowmeter 10 and the precise vacuum table 11 on gas-solid separating device top duct.
Between the dynamic part of described simulation drilling rod and static part, be fixedly connected with by swivel adapter head 6.
Described feeding device is air hermetic screw feeder 1.
Described gas-solid separating device is tornado dust collector 13.Described ickings gathering-device is ickings collecting box 14.
Described coupling arrangement is transparent wire rubber pipe 20, and one end is fixedly connected with simulation drilling rod by pipe collar 8.
Described negative-pressure power system is Roots vaccum pump 12.Described revolving power mechanism is motor 16; Described rotating actuator is pulley transmission mechanism, comprises the first belt pulley 4 that is sleeved on simulation drilling rod surface, is arranged on the second belt pulley 23 of actuating unit output terminal, and for the driving belt 24 of first, second belt pulley that is in transmission connection.
The static part of described simulation drilling rod and equivalent drill bit all adopt polychloroethylene pipes to make.
Referring to Fig. 2-3, in figure, described equivalent drill bit is lower hollow structure, is respectively equipped with charging hole 19 in side and the portion of meeting head on of equivalent drill bit.
The course of work of the present utility model is roughly as follows:
Step (1): experimental system is connected and fixed by shown in Fig. 1, closes tornado dust collector bottom valve, by airtight ickings collecting box and initial setting experiment parameter: drilling speed, solid-gas ratio, fed distance;
Step (2): start Roots vaccum pump 12, motor 16, read flowmeter 10, precise vacuum table 11 registration, measure with pitot tube parameter testing mouth 9 place's static pressure and the ram compressions that this fed distance sets simultaneously;
Step (3): according to the gas-solid ratio parameter setting, set screw feeder drilling speed, repeating step (2) also records experimental result;
Step (4): change gas-solid ratio, fed distance, drilling rod internal diameter, drilling speed, drill bit charging aperture opening size, repeating step (2) also records experimental result.
This experimental system is used polyvinyl chloride pipe to realize the simulation to hollow drill pipe, makes experimental system process and remould Fang Dan, and operating process is easy; Screw feeder and belt gear by controlled speed realize drilling conditions different under coal mine, are easy to realize; Experimental system size can, by full-size(d) design under coal mine, have directive significance to test and the optimization of system operation in negative pressure deslagging spot sampling process.
Embodiment bis-:
The present embodiment figure does not draw.The present embodiment and embodiment mono-structural similarity, its same section no longer repeats at this, and its difference is: described in the present embodiment, simulating drilling rod static part has multistage, and is fixedly cascaded by connecting short circuit between each section.
The course of work of the present embodiment is described with embodiment mono-course of work.
The foregoing is only the schematic embodiment of the utility model; not in order to limit scope of the present utility model; any those skilled in the art is not departing from equivalent variations and the amendment under the prerequisite of the utility model design and principle, made, all should belong to the scope of the utility model protection.
Claims (10)
1. a boring negative pressure deslagging fixed point sampling of coal bed experimental system, it is characterized in that: comprise feeding device, drilling tool analogue means, gas-solid separating device, ickings gathering-device, coupling arrangement and negative-pressure power system, and transportation parameters determinator, drilling tool analogue means comprises static part simulation drilling rod and the equivalent drill bit in series by dynamic part and at least one section, the both sides of dynamic part are rotatably supported on the fixed support of left and right by bearing, and by power and gear train driven rotary, the feed end of dynamic part extend in the contained horizontal housing of feeding device, and at its front end, the uncovered hollow equivalence drill bit in bottom is installed, and equivalent drill bit is positioned at the charging aperture below of feeding device, side and the portion of meeting head at equivalent drill bit are respectively equipped with charging hole, the discharge end of static part is communicated with gas-solid separating device by coupling arrangement, gas-solid separating device bottom is communicated with ickings gathering-device by valve, its top is communicated with negative-pressure power system by pipeline, be provided with air intake opening in the contained horizontal shell end of feeding device, be provided with negative pressure test port in the junction of each section of simulation drilling rod, described transportation parameters determinator comprises the pitot tube that is arranged on negative pressure test port, and be arranged on flowmeter and the precise vacuum table on gas-solid separating device top duct.
2. boring negative pressure deslagging fixed point sampling of coal bed experimental system according to claim 1, is characterized in that: between the dynamic part of described simulation drilling rod and static part, be fixedly connected with by swivel adapter head.
3. boring negative pressure deslagging fixed point sampling of coal bed experimental system according to claim 1, is characterized in that: described simulation drilling rod static part has multistage, and is fixedly cascaded by connecting short circuit between each section.
4. according to the boring negative pressure deslagging fixed point sampling of coal bed experimental system described in claim 1 or 3, it is characterized in that: described coupling arrangement is transparent wire rubber pipe, and be fixedly connected with by pipe collar.
5. boring negative pressure deslagging fixed point sampling of coal bed experimental system according to claim 1, is characterized in that: the static part of described simulation drilling rod and equivalent drill bit all adopt polychloroethylene pipes to make.
6. boring negative pressure deslagging fixed point sampling of coal bed experimental system according to claim 1, is characterized in that: described revolving power mechanism is motor; Described rotating actuator is pulley transmission mechanism, comprises the first belt pulley that is sleeved on simulation drilling rod surface, is arranged on the second belt pulley of actuating unit output terminal, and for the driving belt of first, second belt pulley that is in transmission connection.
7. boring negative pressure deslagging fixed point sampling of coal bed experimental system according to claim 1, is characterized in that: described feeding device is air hermetic screw feeder.
8. boring negative pressure deslagging fixed point sampling of coal bed experimental system according to claim 1, is characterized in that: described gas-solid separating device is tornado dust collector.
9. boring negative pressure deslagging fixed point sampling of coal bed experimental system according to claim 1, is characterized in that: described ickings gathering-device is ickings collecting box.
10. boring negative pressure deslagging fixed point sampling of coal bed experimental system according to claim 1, is characterized in that: described negative-pressure power system is Roots vaccum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420092961.5U CN203772574U (en) | 2014-03-03 | 2014-03-03 | Borehole negative pressure deslagging coal seam fixed-point sampling experiment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420092961.5U CN203772574U (en) | 2014-03-03 | 2014-03-03 | Borehole negative pressure deslagging coal seam fixed-point sampling experiment system |
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| Publication Number | Publication Date |
|---|---|
| CN203772574U true CN203772574U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420092961.5U Withdrawn - After Issue CN203772574U (en) | 2014-03-03 | 2014-03-03 | Borehole negative pressure deslagging coal seam fixed-point sampling experiment system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926105A (en) * | 2014-03-03 | 2014-07-16 | 河南理工大学 | Drilling negative-pressure slagging coal seam spot sampling experimental system |
| CN104792968A (en) * | 2015-04-14 | 2015-07-22 | 河南理工大学 | Drill hole blocking section dredging simulation test system and method |
| CN106198109A (en) * | 2016-07-20 | 2016-12-07 | 河南理工大学 | A kind of bauxite mineral exploration sampler |
| CN114705834A (en) * | 2022-03-31 | 2022-07-05 | 安徽理工大学 | Indoor test system for simulating gas lift reverse circulation slurry suspension slag discharge and test method thereof |
| CN116165027A (en) * | 2023-04-21 | 2023-05-26 | 东营市和瑞化学科技有限公司 | Pipeline sampling device |
-
2014
- 2014-03-03 CN CN201420092961.5U patent/CN203772574U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103926105A (en) * | 2014-03-03 | 2014-07-16 | 河南理工大学 | Drilling negative-pressure slagging coal seam spot sampling experimental system |
| CN104792968A (en) * | 2015-04-14 | 2015-07-22 | 河南理工大学 | Drill hole blocking section dredging simulation test system and method |
| CN106198109A (en) * | 2016-07-20 | 2016-12-07 | 河南理工大学 | A kind of bauxite mineral exploration sampler |
| CN114705834A (en) * | 2022-03-31 | 2022-07-05 | 安徽理工大学 | Indoor test system for simulating gas lift reverse circulation slurry suspension slag discharge and test method thereof |
| CN114705834B (en) * | 2022-03-31 | 2023-08-18 | 安徽理工大学 | Simulated gas lift reverse circulation slurry suspension deslagging indoor test system and test method thereof |
| CN116165027A (en) * | 2023-04-21 | 2023-05-26 | 东营市和瑞化学科技有限公司 | Pipeline sampling device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20160420 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20160420 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |