CN208950639U - Goaf sizing device - Google Patents
Goaf sizing device Download PDFInfo
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- CN208950639U CN208950639U CN201821645731.1U CN201821645731U CN208950639U CN 208950639 U CN208950639 U CN 208950639U CN 201821645731 U CN201821645731 U CN 201821645731U CN 208950639 U CN208950639 U CN 208950639U
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- grouting
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- pipe
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Abstract
The utility model discloses a kind of goaf sizing devices, including Grouting Pipe (1), its bottom end is equipped with the casting head (12) for spray slurries, at least two stop grouting plugs, it is sequentially arranged along Grouting Pipe (1) axis, the stop grouting plug (3) includes metal inner pipe (14), the metal inner pipe (14) being fixedly connected on Grouting Pipe (1) forms the frame of the stop grouting plug (3) in the axial direction, elastic membrane (7), it wraps up Grouting Pipe (1) via metal inner pipe (14), expandable cavity (15) are formed between metal inner pipe (14) and elastic membrane (7), the elastic membrane (7) has rough outer surface, the bottom part of the outer surface is equipped with slurry-feeding hole (16), the tip portion of the outer surface is equipped with slurry outlet (17), slurry-feeding hole (16) hole Diameter is much larger than slurry outlet (17).
Description
Technical field
The utility model relates to goaf grouting technical field, especially a kind of goaf sizing device.
Background technique
Underground coal mine forms goaf after being produced, wall rock destabilization is subjected to displacement, even slump of cracking, and leads to overlying rock
Sink and be bent, causes ground settlement, and this deformation is to continue to develop in a long time, if do not carried out to goaf
Processing, the engineerings such as building, water conservancy and traffic for building, which will be all deformed, even to be destroyed.With the continuous hair of economic society
Exhibition, influence of the mined-out area hazard problem to engineering construction is more prominent, and how to effectively control ground settlements to become important project
One of.Currently, being one of the effective ways for administering mined-out area hazard using Cement fly ash filling is carried out to goaf.
During slip casting, traditional Grouting Pipe structure does not have plugging structure, will cause slurries and largely flows out from drilling, makes
At waste；In addition, conventionally employed Grouting Pipe structure stops due to slip casting, it is possible to create overfall causes the waste of slurries.
Currently, can all encounter only slurry overfall problem, existing stop grouting plug when carrying out injecting treatment to goaf and generally be set with
It is put into togerther in the drilling being drilled in Grouting Pipe with Grouting Pipe, in actual use, often occurs during the installation process, only starching
Phenomena such as cock body abrasion, deformation cause to destroy, can not irregularly tamp gap because of hole inner diameter size, slurry seal can not be continued, led
It causes to block not tight, the slurry reflux in drilling, seriously affects and only starch effect and filling regulation effect, and more existing pass through
The stop grouting plug that closure is filled to drilling is expanded, dilation needs singly to connect Grouting Pipe and carries out slip casting, uses very not
Just, construction speed is influenced.In addition, due to during slip casting slurry pressure it is excessive, make stop grouting plug fail example also can be found everywhere,
And valve in the prior art is easily damaged, and causes grouting cost high, slip casting high failure rate.
Disclosed above- mentioned information are used only for enhancing the understanding to the utility model background in the background section, therefore
It may be comprising not constituting the information of the prior art known to a person of ordinary skill in the art in home.
Summary of the invention
In place of solving above-mentioned the deficiencies in the prior art, the utility model provides a kind of goaf sizing device, this is practical
Novel play to grouting serous fluid pressure reduction with classification only starches anti-overfall effect, energy conservation and environmental protection, easy to operate and safe and reliable.
The purpose of this utility model is to be achieved by the following technical programs.
A kind of goaf sizing device, including Grouting Pipe, bottom end are equipped with the casting head for spray slurries,
At least two stop grouting plugs are sequentially arranged along Grouting Pipe axis, and the stop grouting plug includes,
Metal inner pipe, the metal inner pipe being fixedly connected in Grouting Pipe form the frame of the stop grouting plug in the axial direction
Frame,
Elastic membrane wraps up Grouting Pipe via metal inner pipe, forms expandable sky between metal inner pipe and elastic membrane
Chamber, the elastic membrane have rough outer surface, and the bottom part of the outer surface is equipped with slurry-feeding hole, the outer surface
Tip portion is equipped with slurry outlet, and slurry-feeding hole aperture is much larger than slurry outlet.
In the grouting device, the top of Grouting Pipe is equipped with the connector of connection grouting pump.
In the grouting device, the first stop grouting plug, the second stop grouting plug and third are sequentially arranged along Grouting Pipe axis and is stopped
Slurry plug, wherein the first slurry-feeding hole aperture is greater than the second slurry-feeding hole, and the second slurry-feeding hole aperture is greater than third slurry-feeding hole.
In the grouting device, the elastic membrane is rubber outer membrane.
In the grouting device, the grouting device includes the processing unit for controlling grouting pressure and grouting amount.
In the grouting device, processing unit includes digital signal processor, application-specific integrated circuit ASIC or scene can
Gate array FPGA is programmed, processing unit includes memory and wireless telecom equipment, and the memory may include one or more
Read only memory ROM, random access memory ram, flash memory or Electrical Erasable programmable read only memory EEPROM,
Wireless telecom equipment includes at least wireless LAN communication equipment and/or mobile communication network device, and wireless LAN communication is set
Standby includes bluetooth, ZigBee and/or Wi-Fi module, and the mobile communication network device includes 2G wireless communication chips, 3G is wireless
Communication chip and/or 4G wireless communication chips.
Decompression can be classified to grouting serous fluid using the utility model to achieve the effect that only to starch anti-overfall, and the utility model
Without valve bodies such as check valve, check-valves, the risk of high failure rate caused by valve damages is avoided, is significantly reduced because of hole internal diameter
Size can not irregularly tamp a possibility that gap, and the dilation of the utility model carries out slip casting without singly connecing Grouting Pipe, make
With convenience and slip casting efficiency is significantly improved, the utility model is suitable for the irregular cavity of inner diameter size, and it is applied widely,
And according to specific slip casting demand, by selecting appropriate number stop grouting plug that can economically achieve the desired results.
The above description is merely an outline of the technical solution of the present invention, in order to make the technological means of the utility model
It is more clearly understood, reaches the degree that those skilled in the art can be implemented in accordance with the contents of the specification, and in order to
Above and other objects, features and advantages of the utility model are allowed to can be more clearly understood, below with the specific of the utility model
Embodiment is illustrated.
Detailed description of the invention
By reading the detailed description hereafter in preferred embodiment, the various other advantage of the utility model and
Benefit will become apparent to those of ordinary skill in the art.Figure of description is only used for showing the mesh of preferred embodiment
, and it is not considered as limitations of the present invention.It should be evident that drawings discussed below is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.And throughout the drawings, identical component is presented with like reference characters.
In the accompanying drawings:
[Fig. 1] shows the step schematic diagram of the goaf grouting method of the utility model one embodiment.
Before [Fig. 2] shows the grouting device slip casting of implementation goaf grouting method of the utility model one embodiment
Structural schematic diagram.
After [Fig. 3] shows the grouting device slip casting of implementation goaf grouting method of the utility model one embodiment
Structural schematic diagram.
The structure that [Fig. 4] shows the grouting device of the implementation goaf grouting method of the utility model one embodiment is shown
It is intended to.
Below in conjunction with drawings and examples, the utility model is further explained.
Specific embodiment
Specific embodiment of the utility model is more fully described below with reference to accompanying drawings.Although showing this reality in attached drawing
With novel specific embodiment, it being understood, however, that may be realized in various forms the utility model without that should be illustrated here
Embodiment limited.It is to be able to thoroughly understand the utility model on the contrary, providing these embodiments, and can incite somebody to action
The scope of the utility model is fully disclosed to those skilled in the art.
It should be noted that having used some vocabulary in the specification and claims to censure specific components.Ability
Field technique personnel it would be appreciated that, technical staff may call the same component with different nouns.This specification and right
It is required that not in such a way that the difference of noun is as component is distinguished, but with the difference of component functionally as differentiation
Criterion."comprising" or " comprising " as mentioned throughout the specification and claims are an open language, therefore should be solved
It is interpreted into " including but not limited to ".Specification subsequent descriptions are preferred embodiment of the present invention, the right description
It is being not intended to limit the scope of the utility model for the purpose of the rule of specification.The protection scope of the utility model
As defined by the appended claims.
Convenient for the understanding to the utility model embodiment, to be done by taking specific embodiment as an example below in conjunction with attached drawing further
Explanation, and each attached drawing does not constitute the restriction to the utility model embodiment.
In order to better understand, Fig. 1 shows the step of goaf grouting method of the utility model one embodiment and shows
It is intended to, as shown in Figure 1, a kind of goaf grouting method step includes:
It in first step S1, waits for that slip casting position drills to form inlet well 11 in goaf, Grouting Pipe 1 is inserted into inlet well
11, wherein Fig. 2 shows the knots before the grouting device slip casting of the implementation goaf grouting method of the utility model one embodiment
Structure schematic diagram, as shown in Fig. 2, the casting head 12 for being located at 1 bottom end of Grouting Pipe reaches slip casting region 2, successively along Grouting Pipe axis
At least two stop grouting plugs 3 of arrangement separate slip casting region 2 and exterior space 4, and the elastic membrane 7 of stop grouting plug 3 is at least partly bonded
Inlet well hole wall,
In second step S2, according to predetermined grouting pressure from casting head 12 to 2 slip casting of slip casting region, Fig. 3 shows this reality
With novel one embodiment implementation goaf grouting method grouting device slip casting after structural schematic diagram, as shown in figure 3, working as
When reaching predetermined grouting amount, slurries flow into the first stop grouting plug 5 from the first slurry-feeding hole 6 of the first stop grouting plug 5 of bottom, and first stops
5 expansion of slurry plug fits closely hole wall, fraction slurries from the outflow of the first slurry outlet 8 enter the second stop grouting plug 9 and the first stop grouting plug 5 it
Between region, the second slurry-feeding hole 10 of the second stop grouting plug of fraction slurries 9 flows into the second stop grouting plug 9 and makes the second stop grouting plug 9 close
It is bonded hole wall, the first and second stop grouting plugs 5,9 are successively expanded to prevent slurries excessive and overfall；
In third step S3, after stopping slip casting, slurries are gradually reduced the first and second stop grouting plugs 5,9 pressure, and first stops
The first slurry-feeding hole of slurry reflux 6 in slurry plug 5 enters slip casting region 2, and the first stop grouting plug 5 is shunk, and the second stop grouting plug 9 and first stops
The slurries in region enter slip casting region from the gap between the first slurry outlet 8 and/or the first stop grouting plug 5 and hole wall between slurry plug 5
2, the second slurry-feeding hole of slurry reflux 10 in the second stop grouting plug 9 enter the region between the second stop grouting plug 9 and the first stop grouting plug 5 into
And slip casting region 2 is flowed back into, Grouting Pipe 1, which is recycled, from the inlet well 11 for completing slip casting is used with making next time.
In the preferred embodiment of grouting method described in the utility model, 6 aperture of the first slurry-feeding hole goes out much larger than first
Hole 8 is starched, 10 aperture of the second slurry-feeding hole is much larger than the second slurry outlet.
In the preferred embodiment of grouting method described in the utility model, 9 bottom of the second stop grouting plug is equipped with second
The sealing of the top of slurry-feeding hole 10 and second stop grouting plug 9.Before and after first and second stop grouting plugs 5,9 pressurization step sequences are divided into, first
When stop grouting plug pressure reaches scheduled pressure value, slurries just enter the second stop grouting plug.Two or two-stage stop grouting plug pressurization step sequence point
For front and back, slurries just enter the second stop grouting plug when the first stop grouting plug pressure is to certain value, embody classification and setting pressure, the second stop grouting plug is pair
The supplement of first stop grouting plug.Self-closing is embodied in be closed using air bag (or liquid capsule), by the pressure expansion of slurries itself
It realizes, it is self-closing and can release if slurry pressure, which can be realized, only starches effect, realize the function of self-control.
In the preferred embodiment of grouting method described in the utility model, first is sequentially arranged along 1 axis of Grouting Pipe
Stop grouting plug 5, the second stop grouting plug 9 and third stop grouting plug, wherein 6 aperture of the first slurry-feeding hole is greater than the second slurry-feeding hole 10, and second into slurry
10 aperture of hole is greater than third slurry-feeding hole.
For a further understanding of the utility model, in one embodiment, after inlet well pore-forming, stop grouting plug group is with slip casting
Pipe installation is in place, and stop grouting plug is bonded with borehole wall, and stop grouting plug group separates in slip casting region with upper space；According to setting slip casting
Slip casing by pressure is reached a certain level to grouting amount, and slurries flow into stop grouting plug from slurry-feeding hole and part is flowed out from slurry outlet, stop grouting plug
Group prevents slurries excessive and overfall successively by slurries filling expansion；After stopping slip casting, injection slurry to stop grouting plug pressure by
Decrescence small, slurries successively gradually flow back from grout outlet to stock inlet in stop grouting plug group；Under Grouting Pipe and stop grouting plug group are recycled to make
Secondary use.
Fig. 4 shows the structural representation of the grouting device of the implementation goaf grouting method of the utility model one embodiment
The grouting device of figure, grouting method described in a kind of implementation includes,
Grouting Pipe 1, bottom end are equipped with the casting head 12 for spray slurries,
At least two stop grouting plugs are sequentially arranged along 1 axis of Grouting Pipe, and the stop grouting plug 3 includes,
Metal inner pipe 14, the metal inner pipe 14 being fixedly connected in Grouting Pipe 1 form the stop grouting plug 3 in the axial direction
Frame,
Elastic membrane 7 wraps up Grouting Pipe 1 via metal inner pipe 14, and being formed between metal inner pipe 14 and elastic membrane 7 can be swollen
Swollen cavity 15, the elastic membrane 7 have rough outer surface, and the bottom part of the outer surface is equipped with slurry-feeding hole 16,
The tip portion of the outer surface is equipped with slurry outlet 17, and 16 aperture of slurry-feeding hole is much larger than slurry outlet 17.
The top of the preferred embodiment of grouting device described in the utility model, Grouting Pipe 1 is equipped with connecing for connection grouting pump
First 13.
The preferred embodiment of grouting device described in the utility model is sequentially arranged the first stop grouting plug along Grouting Pipe axis
5, the second stop grouting plug 9 and third stop grouting plug, wherein 6 aperture of the first slurry-feeding hole is greater than the second slurry-feeding hole 10,10 hole of the second slurry-feeding hole
Diameter is greater than third slurry-feeding hole.
The preferred embodiment of grouting device described in the utility model, the elastic membrane 7 are rubber outer membrane.
The preferred embodiment of grouting device described in the utility model, the grouting device include for controlling grouting pressure
With the processing unit of grouting amount.
The preferred embodiment of grouting device described in the utility model, processing unit includes digital signal processor, dedicated
Integrated circuit ASIC or on-site programmable gate array FPGA, processing unit include memory and wireless telecom equipment, the storage
Device may include one or more read only memory ROMs, random access memory ram, flash memory or Electrical Erasable can
Program read-only memory EEPROM, wireless telecom equipment include at least wireless LAN communication equipment and/or mobile communications network
Equipment, wireless LAN communication equipment include bluetooth, ZigBee and/or Wi-Fi module, and the mobile communication network device includes
2G wireless communication chips, 3G wireless communication chips and/or 4G wireless communication chips.
Although the embodiments of the present invention are described in conjunction with attached drawing above, the utility model does not limit to
In above-mentioned specific embodiments and applications field, above-mentioned specific embodiment is only schematical, directiveness, without
It is restrictive.Those skilled in the art under the enlightenment of this specification and are not departing from the utility model claims
In the case where the range protected, a variety of forms can also be made, these belong to the column of the utility model protection.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821645731.1U CN208950639U (en) | 2018-10-11 | 2018-10-11 | Goaf sizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821645731.1U CN208950639U (en) | 2018-10-11 | 2018-10-11 | Goaf sizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208950639U true CN208950639U (en) | 2019-06-07 |
Family
ID=66741032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821645731.1U Active CN208950639U (en) | 2018-10-11 | 2018-10-11 | Goaf sizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208950639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209482A (en) * | 2018-10-11 | 2019-01-15 | 徐州中国矿大岩土工程新技术发展有限公司 | goaf grouting method and grouting device |
| CN115263413A (en) * | 2022-08-11 | 2022-11-01 | 山东鲁建土木工程有限公司 | Goaf filling grouting equipment |
-
2018
- 2018-10-11 CN CN201821645731.1U patent/CN208950639U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109209482A (en) * | 2018-10-11 | 2019-01-15 | 徐州中国矿大岩土工程新技术发展有限公司 | goaf grouting method and grouting device |
| CN109209482B (en) * | 2018-10-11 | 2024-06-21 | 徐州中矿岩土技术股份有限公司 | Goaf grouting method and grouting device |
| CN115263413A (en) * | 2022-08-11 | 2022-11-01 | 山东鲁建土木工程有限公司 | Goaf filling grouting equipment |
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Address after: 221000 10th floor, building C6, Xuzhou Software Park, No. 6, Software Park Road, Quanshan District, Xuzhou City, Jiangsu Province Patentee after: Xuzhou Zhongkuang geotechnical Technology Co.,Ltd. Address before: 221000 Room 101, unit 1, building 1, science and Technology Incubation Center, National University Science Park, China University of mining and technology, Quanshan District, Xuzhou City, Jiangsu Province Patentee before: CUMT GEOTECHNICAL ENGINEERING & NEW TECHNOLOGY DEVELOPMENT Co.,Ltd. |