CN201763388U - Foam mortar preparation device - Google Patents

Foam mortar preparation device Download PDF

Info

Publication number
CN201763388U
CN201763388U CN2010202906978U CN201020290697U CN201763388U CN 201763388 U CN201763388 U CN 201763388U CN 2010202906978 U CN2010202906978 U CN 2010202906978U CN 201020290697 U CN201020290697 U CN 201020290697U CN 201763388 U CN201763388 U CN 201763388U
Authority
CN
China
Prior art keywords
foam
foam mortar
water
filling
mortar preparation
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 - Lifetime
Application number
CN2010202906978U
Other languages
Chinese (zh)
Inventor
张木毅
陈忠平
汪建斌
姚曙
田志刚
谭军
曾亮
陈俊霖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Shengrui Civil Technology Co ltd
Guangzhou University
Fankou Lead Zinc Mine of Shenzhen Zhongjin Lingnan Nonfemet Co Ltd
Original Assignee
Guangdong Shengrui Civil Technology Co ltd
Guangzhou University
Fankou Lead Zinc Mine of Shenzhen Zhongjin Lingnan Nonfemet Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Shengrui Civil Technology Co ltd, Guangzhou University, Fankou Lead Zinc Mine of Shenzhen Zhongjin Lingnan Nonfemet Co Ltd filed Critical Guangdong Shengrui Civil Technology Co ltd
Priority to CN2010202906978U priority Critical patent/CN201763388U/en
Application granted granted Critical
Publication of CN201763388U publication Critical patent/CN201763388U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

The utility model relates to a foam mortar preparation device, wherein a foaming device comprises a dilution device; the dilution device fed with a foaming agent and water is communicated with a compressed air pipeline on which an electric gas adjusting needle valve and a servo motor are arranged; a foaming liquid delivery pump, a gas-liquid pressure sensor, a gas-liquid flowmeter, an electric liquid adjusting needle valve and a servo motor are respectively arranged on a foaming dilution liquid delivery pipeline; a pipeline on which the foaming device is communicated with a foam mortar mixer is provided with an automatic bubble flow controller. By means of lubrication action of density foams that are not communicated, gravity flow conveying under the conditions of high slurry concentration and low water cement ratio is realized, the filling process is simple, the roof-contacting ratio is high, the dehydration of the stope is basically eliminated, and all the technical indexes of the filling body can meet the coal mining demands; and the foam mortar preparation device is applicable to filling of stopes including non-ferrous metal mines and various underground cavities that take beneficiation tail sand, rive sand, rod milling sand and pulverized fuel ash as main aggregates.

Description

The foam mortar preparation facilities
Technical field
The utility model belongs to the mining equiment technical field, relates to a kind of foam mortar preparation facilities that is adapted to the mine stope of cemented filling method is carried out the filling construction.
Background technology
China is the production and the consumption big country of mineral resources, and only non-coal mine just has more than 110,000, produces nearly 5,000,000,000 tons of ore per year, and annual value of production is above 5,000 hundred million yuan.Mining is the basis of exploitation of mineral resources and utilization, but mining also can destroy ground surface environment inevitably in that the raw-material while is provided for the mankind.Develop rapidly along with industry, the demand of mineral products is increasing sharply, mineral resources are but exhausted day by day, safety, environmental problem that resources development and utilization causes are quite outstanding, and the most of barghs of China production scale is little, and technology falls behind, and production blindness, passivity are big, cause the mine environment severe exacerbation, brought very big negative effect for natural ecological environment and social and economic activities.
The applicant is positioned at about 48km place, northeast, Shaoguan, Guangdong Province, is the plumbous zinc of Chinese large-sized production base, class-one national enterprises.At present, mine capacity is from going into operation 40 * 10 of the initial stage 4T/a develops into 150 * 10 4More than the t/a, the mine has 5000~5500 tons of lead-zinc ores of daily output, produces the selecting and purchasing production capacity of plumbous zinc tenor 13~180,000 t per year, is the plumbous zinc selecting and purchasing enterprise of the maximum of China's non-ferrous metal industry.
All mouthful plumbous zinc ores are established in 1958, and nineteen sixty-eight puts into serial production, and the mine is the darkest has at present exploited to-650m level.Since grade of ore height, the ore body complex shape, and the top covered by moisture abundant kettle sky limestone and the above ground portion industrial building need be protected, and does not allow surface subsidence in the scope of exploiting field.So the mining methods in all mouthful of ore deposit have common stratified filling method, panel mechanization stratified filling method and afterwards filling method (FDQ method) based on filling.
Consolidated fill is the core of the method for mining by the way of filling, it is that sand (is comprised mineral dressing wastes, be tailings), the barren rock the like waste mixes a certain proportion of cementitious material and water and forms the obturation with certain flowability, is transported to the goaf of stope by pipeline self, reaches the purpose of filling.It had both reduced tailings and barren rock discharges to the face of land, avoid contaminated environment and take the good farmland, can control stope ground again effectively and press, safeguard that stope is stable, avoid or reduce geological disasters such as rock burst, gushing water, rock move, surface subsidence, improve ore production efficiency, effectively reclaim the difficulty mining bed resource, be safety of buried, high-ground stress mining area and unstable rock stope and " three times " orebody mining first-selection and effective mining methods.
Since the fifties in last century, both at home and abroad filling process and technology have experienced the evolution of barren rock dry stowing, rubble hydraulic fill, the hydraulic fill of classification mine tailing, concrete consolidated fill.To 60~seventies of last century, begin to use and research and development mine tailing consolidated fill technology; 80~nineties,,, developed high concentration consolidated fill (comprising the filling of lotion pump, piece stone sand plasm glue jointed filling and high-moisture quick-setting consolidated fill) new technology for further reducing the needs of mining cost and environmental protection along with the development of mining industry.It is cementitious materials class and the high water class cementitious materials that the trade waste of representative is made that cementitious materials mainly can be divided into portland cement class, active waste material.Delivered downhole technology is divided into the pipeline gravity flow and carries and pumping technology two big classes.Portland cement class cemented filling material is guaranteeing that water/binder ratio substantially exceeds the required water supply volume of cement solidification under the prerequisite that the pipeline gravity flow is carried, cause the cured strength loss serious, and not only cause a large amount of cement to run off in the dehydration, and sedimentation is serious after solidifying, and only is 50~60% of filling slurry after the volume-diminished.Though pumping technology can increase substantially filling concentration, has complex process, problems such as equipment attrition is serious, energy consumption index height.The high-moisture quick-setting composite material has stronger solid water ability, but material cost height and material are to the strictness of sulphoaluminate cement clinker quality requirement, because sulphoaluminate cement clinker manufacturer is few, the sulphoaluminate cement clinker that some little factories produce is of low quality, cause the high-water material performance to descend significantly, the quality of materials instability has restricted applying of this technology.
Also there is the cost height in domestic existing consolidated fill technology, efficient is low, labour intensity is big, the casting resin transportation concentration is low, serious drawbacks such as operating environment are polluted in the stope dehydration.The pumping paste filling technology has the high and high characteristics of pack effectiveness of filling quality concentration, also need not dewater at stope, has obtained comparatively extensive use abroad, but because of its system's capital investment height, the filling process complexity, applying at home is restricted.Because the transportation concentration of mine tailing filling is generally below 70%, stope dehydration not only run off cement and severe contamination working environment at coal mines.
Though above-mentioned measure has improved filling quality to a certain extent, but for guaranteeing that filling slurry is in not plugging of course of conveying, still have enough flowabilities after arriving stope, the water/binder ratio of filling slurry reality is still well beyond the required water/binder ratio of cement generation hydration reaction at present, cause material segregation, the down-hole overflow water increases, operating environment worsens, spillage, the cured strength loss is serious, and not only cause cement to run off in the dehydration, and sedimentation is serious after solidifying, and phenomenons such as (having only 60%) that setting percentage is on the low side takes place, and filling cost also has the space that further reduces.Statistical analysis value from annual underground filling testing result in 2008, no matter be first floor filling, mineral building filling, or glue face filling, it is all on the low side that the statistical value of its 3 days, 28 days intensity reaches the probability of design load, and minimum with the mineral building filling especially, but three kinds of fillings all detect the situation of intensity far above design load.This wherein has reasons such as cement quality (not having quality problems after testing) or consumption problem, but mainly be too high the causing of water/binder ratio of filling slurry, the generation of phenomenons such as too high water/binder ratio will cause material segregation, and bulk strength is on the low side, respective intensities is higher.
Summary of the invention
In order to overcome the above-mentioned shortcoming of prior art, the utility model provides a kind of foam mortar preparation facilities
The technical scheme that its technical problem that solves the utility model adopts is: a kind of foam mortar preparation facilities, comprise foam device, agitator and foam mortar blender, foam device includes air mix facilities, the air mix facilities and the compressed air piping that have added blowing agent and water link, gas motorized adjustment needle-valve and servomotor are installed on the compressed air piping of foam device, and on foaming diluent pipes road, be separately installed with the expanding foam solution delivery pump, the gas-liquid pressure sensor, the gas-liquid flow meter, liquid motorized adjustment needle-valve and servomotor are equipped with the bubble auto flow controller on the pipeline that foam device and foam mortar blender link.
Link by conveyance conduit between described agitator and the foam mortar blender, agitator links by water pipeline and water source, and agitator links by belt conveyor and tailings feed bin, and agitator send apparatus for ash and cement silo to link by reamer.
The belt conveyer scale of control sediment transport amount is installed on described belt conveyor.
Send at described reamer the cement helix balance that ash amount is sent in control is installed on the apparatus for ash.
The flow meter of control pushing quantity is installed on described water pipeline.
Described foam mortar blender links by filling pipeline and down-hole stope.
Be provided with storage tank in the described air mix facilities, the both sides of storage tank are respectively equipped with compressed air inlet, water inlet, blowing agent import and the outlet of foaming dilution, and the blowing agent front pump is installed on the blowing agent input channel, and storage pump is installed on water inlet pipe.
Be respectively equipped with in a side of described storage tank that the water tank height is spacing, spacing and water tank is low spacing in the water tank.
The beneficial effects of the utility model are: by the lubrication of mutual disconnected fine and closely woven foam, realized the gravity flow conveying under high pulp density, the low water-cement ratio condition, filling process is simple, filling cost is lower, connect top rate height, the stope dehydration is basic to be eliminated, every technical indicator of obturation satisfies the mining requirement, has started a kind of brand-new filling model; Be applicable to beneficiation tailing, river sand, rod milling sand and flyash to be all kinds of fillings to the stope filling that comprises nonferrous metals ore, various underground cavities of main aggregate.
[description of drawings]
Fig. 1 is a frame structure schematic diagram of the present utility model;
Fig. 2 is the structural representation of air mix facilities described in the utility model;
Fig. 3 is the structural representation of the storage tank of air mix facilities described in the utility model;
Among the figure: 1-storage tank, 2-compressed air inlet, 3-water inlet, the outlet of 4-foaming dilution, 5-gas-liquid pressure sensor, 6-gas-liquid motorized adjustment needle-valve, 7-gas-liquid flow meter, 8-expanding foam solution delivery pump, 9-blowing agent front pump, 10-water inlet pipe, 11-storage pump, 12-water tank height are spacing, spacing in the 13-water tank, 14-water tank hangs down spacing.
[ The specific embodiment]
Below in conjunction with drawings and Examples the utility model is further specified:
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of foam mortar preparation facilities comprises foam device, agitator and foam mortar blender, on the pipeline that foam device and foam mortar blender link the bubble auto flow controller is housed,
Link by conveyance conduit between agitator and the foam mortar blender; Described agitator links by water pipeline and water source, agitator links by belt conveyor and tailings feed bin, the belt conveyer scale of control sediment transport amount is installed on described belt conveyor, agitator send apparatus for ash and cement silo to link by reamer, and give at described reamer the cement helix balance that ash amount is sent in control is installed on the apparatus for ash, described foam mortar blender links by filling pipeline and down-hole stope.
The flow meter of control pushing quantity is installed on described water pipeline, described foam device includes air mix facilities, the air mix facilities and the compressed air piping that have added blowing agent and water link, in described air mix facilities, be provided with storage tank 1, the both sides of storage tank 1 are respectively equipped with compressed air inlet 2, water inlet 3, blowing agent import and foaming dilution outlet 4, are respectively equipped with in high spacing 12, the water tank of water tank spacing 13 and water tank low spacing 14 in a side of storage tank 1 simultaneously; And on foaming diluent pipes road, be separately installed with expanding foam solution delivery pump 8, gas-liquid pressure sensor 5, gas-liquid motorized adjustment needle-valve 6 gentle flow quantity meters 7, blowing agent front pump 9 is installed on the blowing agent input channel, storage pump 11 is installed on water inlet pipe 10.
The foam for preparing by the utility model and satisfy and fully mix the back in the blender that the last mortar of concentration installs additional be filled to each down-hole stope in the filling pipeline by the filling pipeline.
Because different stopes need different foam flows, need accomplish discharge and blowing agent flow can regulate and can control and response speed fast, air mix facilities needs to carry out work according to the different proportion between expanding foam solution and the water, so need the high-precision frequency conversion constant displacement pump of configuration to control, come accurate proportioning to go out needed expanding foam solution by the linear dependence of demarcating between frequency conversion constant displacement pump and the voltage.
For the foam mortar blender, be the control of source of the gas on the one hand, need the above pressure compressed air of assurance 0.6MPa, and according to required bubbles volume decision air demand; Be the control of expanding foam solution on the other hand, need the above pressure of assurance 0.6MPa equally, control the flow of expanding foam solution and in expanding foam solution and gas circuit flow proportional, calibrate linear relationship by the high-precision frequency conversion constant displacement pump of air mix facilities, to guarantee to produce the foam of standard density.Should be noted that to be that gas circuit flow and liquid road flow are dynamic ratios, so need to adopt high-precision gas-liquid motorized adjustment needle-valve and servomotor to control.
The utility model need be equipped with corresponding control panel: control panel has been realized the dynamic coupling of discharge and blowing agent flow, solved the real-time dilution of blowing agent, difficult problems such as real-time coupling between expanding foam solution flow and the high pressure draught, realize the real-time control of foam volume thus by flow equation, and realized the simple operations of man-machine interface by intelligent touch-screen.
The utility model is by the lubrication of mutual disconnected fine and closely woven foam, realized the gravity flow conveying under high pulp density, the low water-cement ratio condition first, filling process is simple, connect top rate height, the stope dehydration is basic to be eliminated, every technical indicator of obturation satisfies the mining requirement, has started a kind of brand-new filling model.
The utility model is applicable to beneficiation tailing, river sand, rod milling sand and flyash to be all kinds of fillings of main aggregate, comprise the stope filling of nonferrous metals ore, the filling of various underground cavities etc., because mechanical index such as its intensity can be adjusted as required, the scope of application is wider.All kinds of nonferrous metals ores that China is exploiting just reach more than 5000 families, and annual filling total amount surpasses a billion cubic meter, and the filling total cost reaches more than 300 hundred million yuans; According to preresearch estimates, the research and development of this project success not only will be guaranteed safety, the environmental protection exploitation of complicated difficulty mining bed, and in after project achievement is applied 5 years, may be used on the filling of the above large-scale mines of domestic 30 families, realize 4,000,000,000 yuan of the output values, save the nearly 300,000,000 yuan target of cost.

Claims (8)

1. foam mortar preparation facilities, it is characterized in that: comprise foam device, agitator and foam mortar blender, foam device includes air mix facilities, the air mix facilities and the compressed air piping that have added blowing agent and water link, gas motorized adjustment needle-valve and servomotor are installed on the compressed air piping of foam device, and on foaming diluent pipes road, be separately installed with the expanding foam solution delivery pump, the gas-liquid pressure sensor, the gas-liquid flow meter, liquid motorized adjustment needle-valve and servomotor are equipped with the bubble auto flow controller on the pipeline that foam device and foam mortar blender link.
2. foam mortar preparation facilities as claimed in claim 1, it is characterized in that: link by conveyance conduit between described agitator and the foam mortar blender, agitator links by water pipeline and water source, agitator links by belt conveyor and tailings feed bin, and agitator send apparatus for ash and cement silo to link by reamer.
3. foam mortar preparation facilities as claimed in claim 2 is characterized in that: the belt conveyer scale that control sediment transport amount is installed on described belt conveyor.
4. foam mortar preparation facilities as claimed in claim 2 is characterized in that: send at described reamer the cement helix balance that the ash amount is sent in control is installed on the apparatus for ash.
5. foam mortar preparation facilities as claimed in claim 2 is characterized in that: the flow meter that the control pushing quantity is installed on described water pipeline.
6. foam mortar preparation facilities as claimed in claim 1 or 2 is characterized in that: described foam mortar blender links by filling pipeline and down-hole stope.
7. foam mortar preparation facilities as claimed in claim 1, it is characterized in that: be provided with storage tank in the described air mix facilities, the both sides of storage tank are respectively equipped with compressed air inlet, water inlet, blowing agent import and the outlet of foaming dilution, the blowing agent front pump is installed on the blowing agent input channel, storage pump is installed on water inlet pipe.
8. foam mortar preparation facilities as claimed in claim 7 is characterized in that: be respectively equipped with in a side of described storage tank that the water tank height is spacing, spacing and water tank is low spacing in the water tank.
CN2010202906978U 2010-08-13 2010-08-13 Foam mortar preparation device Expired - Lifetime CN201763388U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202906978U CN201763388U (en) 2010-08-13 2010-08-13 Foam mortar preparation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202906978U CN201763388U (en) 2010-08-13 2010-08-13 Foam mortar preparation device

Publications (1)

Publication Number Publication Date
CN201763388U true CN201763388U (en) 2011-03-16

Family

ID=43715997

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202906978U Expired - Lifetime CN201763388U (en) 2010-08-13 2010-08-13 Foam mortar preparation device

Country Status (1)

Country Link
CN (1) CN201763388U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10717059B2 (en) 2017-05-18 2020-07-21 United States Gypsum Company Calcined gypsum slurry mixing apparatus having variably positionable lump ring and method for manufacturing gypsum product using same
CN111775337A (en) * 2020-07-29 2020-10-16 中钢集团马鞍山矿山研究总院股份有限公司 Combined type dry material hauling accurate conveying and filling station suitable for mine filling system
CN112195912A (en) * 2020-08-20 2021-01-08 山东大学 Intelligent filling device and method for micro-foam material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10717059B2 (en) 2017-05-18 2020-07-21 United States Gypsum Company Calcined gypsum slurry mixing apparatus having variably positionable lump ring and method for manufacturing gypsum product using same
CN111775337A (en) * 2020-07-29 2020-10-16 中钢集团马鞍山矿山研究总院股份有限公司 Combined type dry material hauling accurate conveying and filling station suitable for mine filling system
CN112195912A (en) * 2020-08-20 2021-01-08 山东大学 Intelligent filling device and method for micro-foam material

Similar Documents

Publication Publication Date Title
CN102261262B (en) High-performance foam mortar filling method for mine stope
CN101008315B (en) Paste-like backfill technology used in coal cutting area
CN101723622A (en) Foam tailings cemented filling material and manufacturing method thereof
CN102865101B (en) Filling method and system of coal mine goaf
CN102924010A (en) Self-compaction filling paste body and preparation process thereof
CN105834012A (en) Continuous preparation system and preparation technology of whole grain grade tailing cemented filling slurry
EP0988260A1 (en) High pulp density, fast setting and high early strength backfill method and material
CN102493839B (en) Method for filling gob
CN102434204A (en) Mine waste rock and all tailing pipeline conveying filling system and filling method using same
CN101749047B (en) Paste filling simulation test system
Krupnik et al. Backfilling technology in Kazakhstan mines
CN106939796A (en) The method and system that filling slurry fills underground goaf are prepared using efflorescent sand
CN105776911A (en) Gel material for ultra-fine tailing filling and dry heaping
CN201763388U (en) Foam mortar preparation device
CN103133033A (en) Mine phosphogypsum cemented fill slurrying process
CN109734379A (en) A kind of preparation method of Tailing Paste Filling material
CN101270671B (en) Low-cost wet-type high-efficiency filling method for underground mine
CN201041052Y (en) Filling type paste preparation system for quarry
CN103242024A (en) Leopoldite goaf cementation filler and filling method thereof
CN205628313U (en) Wholegrain level tailings consolidated fill ground paste is system of preparing in succession
CN206071641U (en) A kind of coal mine gob totipotency Paste-filling System
CN201587031U (en) Automatic mixing device for ointment filling system
CN108252734A (en) A kind of placement method of Desending slicing Drift stoping underground goaf
CN102661170A (en) Process and device for continuously stirring and filling paste-like body for mine manufactured by use of building waste
CN112814732A (en) Preparation of mixed ground paste of barren rock and tailings and pump sending filling device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20110316