CN100387805C - Automatic quantification charging technology and apparatus using dytory method to prevent spontaneous combustion of coal - Google Patents
Automatic quantification charging technology and apparatus using dytory method to prevent spontaneous combustion of coal Download PDFInfo
- Publication number
- CN100387805C CN100387805C CNB031529631A CN03152963A CN100387805C CN 100387805 C CN100387805 C CN 100387805C CN B031529631 A CNB031529631 A CN B031529631A CN 03152963 A CN03152963 A CN 03152963A CN 100387805 C CN100387805 C CN 100387805C
- Authority
- CN
- China
- Prior art keywords
- jet pump
- pump
- suction
- coal
- grouting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention discloses automatic and quantitative charging technique and a device thereof for preventing and treating spontaneous combustion of coal by using a colloidal mud method. Water, yellow mud and water glass are proportionally mixed in a ground pulping station, and are conveyed to underground grouting points through pipelines; then, two-stage jet pumps are connected in series to grouting pipelines; a small material sucking pipe is connected to a first-stage jet pump, and coagulation accelerators are sucked into a pump body to be added into slurry through the small material sucking pipe; the mixed slurry is conveyed to grouting places by a secondary jet pump, and the suction volume is regulated by regulating the opening degree of the small material sucking pipe. The present invention has the advantages of simple structure, easy operation and energy saving.
Description
Technical field
The present invention relates to a kind of preventing and extinguishing fire technology, mainly be applicable to and adopt under the coal mine when dytory is anti-puts out a fire, in the anti-fire extinguishing of slip casting pipeline, add setting accelerator.
Background technology
Spontaneous combustionof coal is one of mine major casualty, and gel and dytory preventing and extinguishing fire technology are the major techniques of control spontaneous combustionof coal.
Gel is exactly a silica gel, is a kind of high hydrocolloid, and it prepares mixing by a certain percentage by base material A (water glass) aqueous solution and the setting accelerator B aqueous solution, in the regular hour, be frozen into colloid, leak stopping wind, and absorbing and cooling temperature, be applied under the coal mine, can effectively prevent and treat spontaneous combustion of coal.Dytory is exactly the mixture of gel and yellow mud.Be characterized in: dytory, except that over-all properties advantage, also have into colloid and amass greatly with gel, colloid intensity height, economical and practical characteristics such as materials province can be prevented and treated the spontaneous combustion of large tracts of land goaf coal effectively.This preventing and extinguishing fire technology requires the proportioning mixing by a certain percentage of the yellow mud and base material A (water glass) the setting accelerator B aqueous solution, can reach the anti-fire extinguishing of expection effect.
Toward the most widely used technology of down-hole pressure injection dytory is that the setting accelerator method is added in the static pressure grouting down-hole, promptly in the ground slurry preparing pond water glass is evenly mixed in proportion, delivers to the down-hole by pipeline then; Quantitatively add setting accelerator in the down-hole in grouting pipe with the injecting glue pump, inject the slip casting place then, prevent fire extinguishing.
This traditional adding method has the following disadvantages:
(1) uses anti-explosion electric injecting glue pump under the coal mine, need power supply, increased the equipment investment expense;
(2) during the injecting glue pump work, running gear is many, and fault is therefore also many, has increased maintenance workload;
(3) equipment need have the special messenger to operate, and the equipment operation needs power consumption, has increased correlative charges;
(4) flow of injecting glue pump can not be regulated according to the flow of host in the pipe automatically automatically, influences gelation time and colloid quality easily, also can cause stock losses simultaneously, the anti-fire extinguishing of influence effect.
Summary of the invention
The objective of the invention is to utilize the pressure of feed liquid in the grouting pipe of down-hole, adopt the Venturi effect principle, providing a kind of can quantitatively add injecting glue setting accelerator technology and equipment in the trend pipeline, to overcome the deficiencies in the prior art.
Technical scheme of the present invention is as follows: a kind of automatic ration feeding technique that utilizes dytory method control spontaneous combustionof coal, it is included in the ground slurry preparing station with water, after yellow mud and water glass mix pulping in proportion, by grouting pipe slurries are delivered to slip casting place, down-hole, it is characterized in that: adopting the two stage jet pump is that the 1st grade of jet pump and the 2nd grade of jet pump series connection insert in the pipeline that needs injecting glue body mud, unite and improve the back pressure recovery value, on first order jet pump, draw a suction tube, the negative pressure of utilizing the eddy current in the jet pump to form sucks setting accelerator in the pump housing by charging absorption pump and is added in the slurries, deliver to the slip casting of slip casting point by secondary jets pump and pipeline then, first order jet pump is worked under cavitation place attitude, keeps the feed liquid of suction constant.
A kind of automatic ration feeding device that is exclusively used in said method, form by the pump housing, the first order jet pump that is in series and second level jet pump, strainer and suction sebific duct, the suction sebific duct be contained on the first order jet pump and and the connection of jet pump inner chamber, the front end of first order jet pump is communicated with the pump housing by pipeline and strainer, and the suction control valve and the non retern valve of control feed liquid soakage is housed on suction tube.When the flow-rate ratio of one-level jet pump (4) was 0.3, the sectional area ratio of one-level jet pump (3) was 1: 1.68, and the area ratio of secondary jets pump is 1.62, and this moment, unit efficiency was the highest.
Its good effect is: the automatic adding set of injecting glue is that essential safe type has:
(1) simple in structure, volume is little, in light weight, and fitting operation is convenient;
(2) do not have moving component, fault is few, easy-maintaining.
(3) soakage of feed liquid (setting accelerator) can be regulated automatically with ducted flow, can guarantee the characteristics such as quality of the gelation time and the colloid of feed liquid.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail.
Fig. 1 is a filling system schematic diagram of the present invention;
Fig. 2 automatic ration feeding device structural representation.
Among the figure: 1 pump housing, 2. strainer, 3. second level jet pump, 4. first order jet pump, 5. suction control valve, 6. non retern valve, 7. suction sebific duct, 8. import main valve, 9. surface grout injection station, 10. grouting pipe, 11. relief valves, 12. dump valves, 13. double-edged fine-toothed combs, 14. charging baskets.
The specific embodiment
With reference to Fig. 1, after present invention resides in surface grout injection station (9) water, yellow mud, water glass being mixed pulping in proportion, through filter (2) with its filtration after grouting pipe (10) is delivered to slip casting place, down-hole with slurries, owing to carry the grouting pipe internal pressure and the flow of slurries all bigger, and the flow of required setting accelerator solution is less, only be the 2-4% of injection slurry flow generally speaking, if the working method that adopts single-stage jet pump and grouting pressure pipeline directly to connect, then the pressure pipeline pressure drop is excessive, it is less that back pressure is recovered, and causes unit efficiency on the low side.So the present invention adopts the two stage jet pump, be about to improve the back pressure recovery value in first order jet pump (4) and second level jet pump (3) the series connection access grouting pump pipeline; On first order jet pump (4), draw a suction sebific duct (7), the negative pressure of utilizing the eddy current in the jet pump to form sucks setting accelerator solution in the pump housing by suction sebific duct (7) and is added in the injection slurry, slurries is annotated the position of answering slip casting by two stage pump (3) and pipeline then.Characteristics according to jet pump: the jet pump that physical dimension is certain, under the cavitation state, the flow-rate ratio that sucks is constant, irrelevant with operating pressure and working flow, so take first order jet pump (4) under the cavitation state, to work, it is constant then to keep sucking feed liquid, and the feed liquid proportioning is constant substantially, thereby realizes that automatic ration adds the setting accelerator feed liquid.
With reference to Fig. 2, the automatic ration feeding device is made up of the pump housing (1), the first order jet pump (4) that is in series and second level jet pump (3), strainer (2) and suction sebific duct (7), suction sebific duct (7) is contained in also last and jet pump (4) the inner chamber connection of first order jet pump (4), and the front end of first order jet pump (4) is communicated with the pump housing (1) by pipeline and strainer (2).The suction control valve (5) and the non retern valve (6) of control feed liquid soakage are housed on suction tube.When the flow-rate ratio of one-level jet pump (4) was 0.3, the sectional area ratio of one-level jet pump (3) was 1:1.68, and the area ratio of secondary jets pump is 1.62, and this moment, unit efficiency was the highest.In the present embodiment, adopt threeway to be connected between strainer (2) and the pump housing (1); Adopt 4 ' high-pressure hose to be connected between strainer (2) and the first order jet pump (4); Adopt 6 ' galvanized iron conduit to be connected between first order jet pump (4) and the second level jet pump (3) by threeway; Suction control valve (5) is 6 ' ordinary ball valve; The non retern valve latus rectum is φ 20mm, and the suction sebific duct is that common 1 " sebific duct, length is no more than 4m.The whole pump housing adopts quick card orchid to be connected with grouting pipeline in a direction indicated by the arrow.
During slip casting, device shown in Figure 2 is packed in the grouting pipeline shown in Figure 1, for checking the collagen amount, dump valve (12) is installed on the pulp pipeline, the course of work is: mix in proportion after double-edged fine-toothed comb (13) filters at ground Jiang Shui, yellow mud and water glass and deliver to the down-hole by pipeline, open the import main valve (8) and the suction control valve (5) of automatic feeding device then, this moment, feeding device began the feed liquid in the auto-pumping charging basket (14).Regulate the aperture of suction control valve (5), can regulate the suction amount.Colloid quality and gelation time can be checked by the dump valve tapping.Control flow rate of grouting by regulating import main valve (8).Collapse pipe for anti-automatic feeding device stops up, returning apparatus has bypass release arm and relief valve (11) on grouting pipe.
Claims (1)
1. automatic ration feeding device that utilizes dytory method control spontaneous combustionof coal, by the pump housing (1), first order jet pump (4) that is in series and second level jet pump (3), strainer (2) and suction sebific duct (7) are formed, suction sebific duct (7) is contained in also last and jet pump (4) the inner chamber connection of first order jet pump (4), the front end of first order jet pump (4) is communicated with the pump housing (1) by pipeline and strainer (2), the suction control valve (5) and the non retern valve (6) of control feed liquid soakage are housed on suction tube, it is characterized in that when the flow-rate ratio of one-level jet pump (4) is 0.3, the sectional area ratio of one-level jet pump (3) is 1: 1.68, and the area ratio of secondary jets pump is 1.62.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031529631A CN100387805C (en) | 2003-09-03 | 2003-09-03 | Automatic quantification charging technology and apparatus using dytory method to prevent spontaneous combustion of coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031529631A CN100387805C (en) | 2003-09-03 | 2003-09-03 | Automatic quantification charging technology and apparatus using dytory method to prevent spontaneous combustion of coal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1525044A CN1525044A (en) | 2004-09-01 |
| CN100387805C true CN100387805C (en) | 2008-05-14 |
Family
ID=34287065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031529631A Expired - Fee Related CN100387805C (en) | 2003-09-03 | 2003-09-03 | Automatic quantification charging technology and apparatus using dytory method to prevent spontaneous combustion of coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100387805C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100547226C (en) * | 2007-03-05 | 2009-10-07 | 煤炭科学研究总院重庆分院 | The high power inhibition foam and the generating means thereof of control spontaneous combustionof coal |
| CN101832148B (en) * | 2010-02-11 | 2011-11-02 | 中国矿业大学 | Fire extinguishing medium irrigation device for coal mine ground drilling |
| CN110242344A (en) * | 2019-07-30 | 2019-09-17 | 鄂尔多斯市中北煤化工有限公司 | A kind of device to mechanized coal mining bracket rear automatic spraying powdery fire proofing material |
| CN110821445B (en) * | 2019-10-16 | 2022-06-21 | 中国石油集团川庆钻探工程有限公司 | Nitrogen pumping operation method under condition of low-volume natural gas formation |
-
2003
- 2003-09-03 CN CNB031529631A patent/CN100387805C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 注浆管道自动定量加料技术及装备在姚桥矿防灭火中的应用. 卫功柱，曹大成，冯学武，吴吉南，张景松.矿业安全与环保，第s1期. 2003 |
| 注浆管道自动定量加料技术及装备在姚桥矿防灭火中的应用. 卫功柱，曹大成，冯学武，吴吉南，张景松.矿业安全与环保，第s1期. 2003 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1525044A (en) | 2004-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017422764B2 (en) | Closed circulation system for improving operating efficiency of gas drainage pump | |
| CN103100984B (en) | Abrasive automatic feeding device and using method | |
| CN104632269B (en) | Differential mine dust falling agent automatic adding device | |
| CN102900417A (en) | Sand charging device used during fracturing or slotting under coal mine and sand charging control method | |
| CN102606189A (en) | Fire extinguishing and cooling system for coal cavities and loose areas in fire district of coal field | |
| CN100387805C (en) | Automatic quantification charging technology and apparatus using dytory method to prevent spontaneous combustion of coal | |
| CN110125806A (en) | High pressure mortar pump realizes that front mixing abrasive water jet continuously adds sand system and method | |
| CN211329232U (en) | A thoughtlessly join in marriage car of joining in marriage that is arranged in fracturing construction operation to prepare fracturing fluid | |
| CN206816224U (en) | A kind of vehicle-mounted pressure break diverting agent automatic filling device | |
| CN2777199Y (en) | Means for injecting water blocking aggregate for bore-hole slip casting | |
| CN203640772U (en) | Mining pneumatic emulsion moving pump station | |
| CN203741948U (en) | Jet type pipe network pressure-superposed water supply device | |
| CN2622393Y (en) | Pressured pipe antomatic quantitative material feeder | |
| CN212106219U (en) | Water suction pump for mine drainage | |
| CN204806758U (en) | Circulative cooling water supply system outside hydroelectric power plant | |
| CN208669633U (en) | A kind of electric pump increasing pipeline pump suction | |
| CN202578751U (en) | Fire extinguishing and cooling system used in coal empty and loose areas of coal field fire zone | |
| CN207961162U (en) | Portable wind brake hydraulic station | |
| CN217367915U (en) | Novel emulsion preparation equipment for coal mine | |
| CN205154118U (en) | Back pressure integrated device falls in jet pump oil recovery well group | |
| CN104879105A (en) | Continuous injecting and acidizing unit for water injection well | |
| CN2682209Y (en) | Pulse water flooding device | |
| CN204627528U (en) | A kind of for oil well thin oil multiviscosisty water blockoff system | |
| CN211026784U (en) | Internal circulation hydraulic control valve of spray pump of energy-saving heading machine | |
| CN209227677U (en) | A kind of bi-directional voltage stabilizing compensation device for supply equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080514 Termination date: 20120903 |