CN104213927B - Accelerator powder gas generator - Google Patents
Accelerator powder gas generator Download PDFInfo
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- CN104213927B CN104213927B CN201410422620.4A CN201410422620A CN104213927B CN 104213927 B CN104213927 B CN 104213927B CN 201410422620 A CN201410422620 A CN 201410422620A CN 104213927 B CN104213927 B CN 104213927B
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- accelerator
- control valve
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- sending cans
- air hose
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Abstract
The invention discloses a kind of accelerator powder gas generator, comprise accelerator sending cans (1), compressed air source (2), booster (3), moisture trap (4), the first pressure-control valve (5), the second pressure-control valve (6), flow control valve (7), anti-blocking control valve (8), balanced device (9), meter (10) and spray gun (11), compressed air source, booster, moisture trap, the first pressure-control valve, the compressed air input port of accelerator sending cans is connected successively by air hose, the discharging opening of accelerator sending cans is by powder tracheae and balanced device, meter, the accelerator powder gas entrance of spray gun is connected successively, discharging opening position in accelerator sending cans is also provided with bridge breaker and ball valve. the present invention has changed concrete spraying machine and can only use the history of liquid accelerating agent and concrete dry spray accelerator skewness, integrates dry operation and wet work advantage, and low, the uniform property of cost is good, resilience is little, dust is little.
Description
Technical field
The present invention relates to shotcrete construction equipment, especially a kind of auxiliary equipment of the gunite concrete machine of carrying accelerator powder gas.
Background technology
At present, known construction of shotcrete is divided into two kinds of dry operation and wet works. Dry operation uses dry powder accelerator, and wet work is used liquid accelerating agent. Using dry powder accelerator is with manually or mechanical system and must adding from pulp shooting machine charge door, and the uniform property of the method accelerator is poor, and resilience is large, and dust is large. Using liquid accelerating agent is to add from spray gun seat with pumping mode, and advantage is that uniform property is good, resilience is little, dust is little, and shortcoming is that liquid accelerating agent market price is higher than dry powder accelerator market price, is roughly the twice left and right of dry powder accelerator. Be the water that liquid accelerating agent contains 50% left and right in addition, it causes the concrete ratio of mud to become large, thereby causes concrete strength to fall the end and extend setting time. Wet work is the operating type that current construction generally adopts.
Summary of the invention
The present invention aims to provide a kind of accelerator generator that integrates dry operation and wet work advantage, has the advantages that low, the uniform property of cost is good, resilience is little, dust is little.
For this reason, the technical solution adopted in the present invention is: a kind of accelerator powder gas generator, comprises accelerator sending cans, compressed air source, booster, moisture trap, the first pressure-control valve, the second pressure-control valve, flow control valve, anti-blocking control valve, balanced device, meter and spray gun, described compressed air source, booster, moisture trap, the first pressure-control valve, the compressed air input port of accelerator sending cans is connected successively by air hose, and the discharging opening of described accelerator sending cans is by powder tracheae and balanced device, meter, the accelerator powder gas entrance of spray gun is connected successively, discharging opening position in accelerator sending cans is also provided with bridge breaker and ball valve, one end of described the second pressure-control valve is connected between moisture trap and the first pressure-control valve by air hose, the other end of the second pressure-control valve is connected on balanced device by air hose, one end of described flow control valve is connected between moisture trap and the first pressure-control valve by air hose, the other end of flow control valve is connected on meter by air hose, one end of described anti-blocking control valve is connected between moisture trap and the first pressure-control valve by air hose, and the other end of anti-blocking control valve is connected to the accelerator powder gas entrance of spray gun by air hose.
Be preferably, the output pressure of described the first pressure-control valve is 0.65～0.7MPa, and the output pressure of the second pressure-control valve, flow control valve is 0.8MPa, and the output pressure of anti-blocking control valve is 0.4MPa.
For guaranteeing safety and increasing work efficiency, the tank body compression strength of described accelerator sending cans is the more than 2 times of maximum pressure through air hose input source of the gas; In described accelerator sending cans, be also equipped with safety valve, pressure-relief valve and Pressure gauge, the charge door of accelerator sending cans is quick-make charge door, and discharging opening is 1～3; Can be simultaneously to 3 or 30m3/ h concrete sprayer feed.
Further, described accelerator sending cans are two tank bodies, and when a tank job, another tank is reinforced, and when a tank is reinforced, another tank work, realizes the reinforced activity duration that do not take.
The present invention adopts compressed air and accelerator sending cans, make dry powder accelerator and compressed air be fluidization in accelerator sending cans, send into again spray gun, mainly utilize aerodynamics and hydrodynamics to make the fluidization of dry powder accelerator, by the control to gas pressure and flow, realize the metering of accelerator powder gas and carry. Its feature is:
(1) reduced concrete obscission and saved accelerator consumption. When concrete dry spray operation without exception be all to add dry powder accelerator in pulp shooting machine hopper, when mix and blend, compole is short, uniform property is very poor, is therefore prone to concrete obscission. Come off for reducing, need to increase the accelerator volume that is twice left and right, thereby wasteness is very large. When concrete spraying operation, liquid accelerating agent consumption was directly proportional to the concrete resting period after blunge, and the time, longer consumption was larger. In liquid accelerating agent, the content of water exceedes 50%, and the larger concrete water-cement ratio of volume is larger, and the size of the ratio of mud is very big to concrete coagulating time and intensity effect. Therefore liquid accelerating agent consumption is theoretical consumption when actual job 1 to 2 times. Use dry powder accelerator, therefore can be saved accelerator consumption and come off and can also ensure concrete intensity with minimizing concrete without change the concrete ratio of mud.
(2) economic benefit is outstanding. Liquid accelerating agent and dry powder accelerator price differential are large, can save the expense of 50% left and right with dry powder accelerator replacement liquid accelerating agent.
(3) equipment meets low-carbon environment-friendly theory. Not electricity consumption, can be used for having gas tunnel construction, and dry powder accelerator, moving under sealing state completely, does not increase dust. The compressed air utilizing continues as the acting of gunite concrete machine, and operation maintenance is also very easy to learn.
In sum, the present invention has changed concrete spraying machine and can only use the history of liquid accelerating agent and concrete dry spray accelerator skewness. It,, to reducing the consumption of accelerator, reduces concrete waste, ensures concrete Strong degree, increases Economic Efficiency of Enterprise and produces considerable influence. Can be widely used in the underground engineering constructions such as highway, railway, power station.
Brief description of the drawings
Fig. 1 is structure principle chart of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, a kind of accelerator powder gas generator, mainly by accelerator sending cans 1, compressed air source 2, booster 3, moisture trap 4, the first pressure-control valve 5, the second pressure-control valve 6, flow control valve 7, anti-blocking control valve 8, balanced device 9, meter 10, spray gun 11, bridge breaker 12 and ball valve 13, and some air hose A, powder tracheae B form.
Accelerator sending cans 1 are the pressure vessel of sealing, on tank body, be provided with compressed air input port, charge door and discharging opening, by compressed air input port to input compressed-air in tank body, in tank body, add dry powder accelerator by charge door, dry powder accelerator is fluidization after tank body mixes with compressed air, export through discharging opening. Tank body volume is according to the quantity of concrete sprayer and production determining, when to large output shotcrete manipulator feed, accelerator sending cans 1 adopt two tank bodies, and when a tank job, another tank is reinforced, when one tank is reinforced, another tank work, realizes the reinforced activity duration that do not take. Meanwhile, for guaranteeing safety, the tank body compression strength of accelerator sending cans 1 is the more than 2 times of maximum pressure through air hose A input source of the gas, and establishes safety valve, pressure-relief valve and Pressure gauge, and safety valve also needs to do dustproof setting. The charge door of accelerator sending cans 1 is quick-make charge door, and discharging opening is 1～3, can be simultaneously to 3 or 30m3/ h concrete sprayer feed. The addition of dry powder accelerator is not more than 85% of tank body volume.
The compressed air input port of compressed air source 2, booster 3, moisture trap 4, the first pressure-control valve 5, accelerator sending cans 1 is connected successively by air hose A, to the interior input compressed-air of accelerator sending cans 1. Preferably, set into tracheae and multiple spot exhaust in the tank body of accelerator sending cans 1, make dry powder accelerator in the interior fast fluidization of accelerator sending cans 1, meanwhile, the dry powder accelerator of selecting is the good product of fluidization.
The discharging opening of accelerator sending cans 1 is connected with the accelerator powder gas entrance of balanced device 9, meter 10, spray gun 11 successively by powder tracheae B, sends into fluidised accelerator to spray gun 11. Also be provided with bridge breaker 12 and ball valve 13 in the discharging opening position of accelerator sending cans 1, because dry powder accelerator is producing in fortune process of assembling unavoidably by luming and foreign matter, the effect of bridge breaker 12 is to stop caking and foreign matter to stop up powder tracheae B after entering powder tracheae B.
One end of the second pressure-control valve 6 is connected between moisture trap 4 and the first pressure-control valve 5 by air hose A, the other end of the second pressure-control valve 6 is connected on balanced device 9 by air hose A, one end of flow control valve 7 is connected between moisture trap 4 and the first pressure-control valve 5 by air hose A, the other end of flow control valve 7 is connected on meter 10 by air hose A, one end of anti-blocking control valve 8 is connected between moisture trap 4 and the first pressure-control valve 5 by air hose A, the other end of anti-blocking control valve 8 is connected to the accelerator powder gas entrance of spray gun 11 by air hose A.
Balanced device 9 is pressure vessel, conventionally select the volume of 1L left and right, inside there is the screen cloth of aperture 2～3mm, input quantitative compressed air by the second pressure-control valve 6 to balanced device 9, have and make the more balanced function of dry powder accelerator flow, again stop foreign matters from being blocked powder tracheae B, in the time of break-off, can also empty the effect of accelerator in powder tracheae B simultaneously.
In the time of constant pressure in accelerator sending cans 1, dry powder accelerator is also constant through the powder tolerance of powder tracheae B output, and is maximum output. In the time adding the compressed air of certain flow by flow control valve 7 to meter 10, will reduce the flow velocity of dry powder accelerator, by the gas flow of air hose A between increase and decrease flow control valve 7 and meter 10, realize the metering of dry powder accelerator.
When spray gun 11 starts gunite concrete, but accelerator sending cans 1 are while not yet inputting accelerator to spray gun 11, to spray gun 11 input compressed-airs, can prevent that concrete from entering powder tracheae B by anti-blocking control valve 8.
The first pressure-control valve 5, the second pressure-control valve 6, flow control valve 7, anti-blocking control valve 8 are pressure-control valve. Flow control valve 7 is realized the measure control of accelerator by being blown into compressed air to meter 10, be therefore called flow control valve; Anti-blocking control valve 8 is realized the object that prevents that powder tracheae B from stopping up by the accelerator powder gas entrance blowing compressed air to spray gun 11, be therefore called anti-blocking control valve. Preferably, the output pressure of the first pressure-control valve 5 is 0.65～0.7MPa, and the output pressure of the second pressure-control valve 6, flow control valve 7 is 0.8MPa, and the output pressure of anti-blocking control valve 8 is 0.4MPa.
Powder tracheae B can select PU flexible pipe, 4～7m3/ h concrete sprayer uses the PU pipe that internal diameter is 5～6.5mm, 20～30m3/ h concrete sprayer uses the PU pipe that internal diameter is 10～12mm, and PU pipe maximum delivery, apart from 50M, exports minimum pressure 0.3MPa.
Claims (4)
1. an accelerator powder gas generator, is characterized in that: comprise accelerator sending cans (1), compressionAir-source (2), booster (3), moisture trap (4), the first pressure-control valve (5), the second pressureControl valve (6), flow control valve (7), anti-blocking control valve (8), balanced device (9), meter (10)And spray gun (11), described compressed air source (2), booster (3), moisture trap (4), first are pressedThe compressed air input port of force control valve (5), accelerator sending cans (1) is by air hose (A) phase successivelyConnect, the discharging opening of described accelerator sending cans (1) is by powder tracheae (B) and balanced device (9), meter(10), the accelerator powder gas entrance of spray gun (11) is connected successively, in the discharging of accelerator sending cans (1)Mouth position is also provided with bridge breaker (12) and ball valve (13), one of described the second pressure-control valve (6)End is connected between moisture trap (4) and the first pressure-control valve (5) by air hose (A), theIt is upper that the other end of two pressure-control valves (6) is connected to balanced device (9) by air hose (A), described streamOne end of control valve (7) is connected to moisture trap (4) and the first pressure control by air hose (A)Between valve processed (5), the other end of flow control valve (7) is connected to meter (10) by air hose (A)Upper, one end of described anti-blocking control valve (8) by air hose (A) be connected to moisture trap (4) andBetween the first pressure-control valve (5), the other end of anti-blocking control valve (8) connects by air hose (A)At the accelerator powder gas entrance of spray gun (11).
2. according to accelerator powder gas generator claimed in claim 1, it is characterized in that: described first pressesThe output pressure of force control valve (5) is 0.65～0.7MPa, the second pressure-control valve (6), flow-controlThe output pressure of valve (7) is 0.8MPa, and the output pressure of anti-blocking control valve (8) is 0.4MPa.
3. according to accelerator powder gas generator claimed in claim 2, it is characterized in that: described acceleratorThe tank body compression strength of sending cans (1) is the more than 2 times of maximum pressure through air hose (A) input source of the gas;Safety valve, pressure-relief valve and Pressure gauge be also equipped with in described accelerator sending cans (1),, accelerator sending cans(1) charge door is quick-make charge door, and discharging opening is 1～3.
4. according to accelerator powder gas generator claimed in claim 1, it is characterized in that: described acceleratorSending cans (1) are two tank bodies, and when a tank job, another tank is reinforced, and when a tank is reinforced, another tank work, realNow feed in raw material and do not take the activity duration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422620.4A CN104213927B (en) | 2014-08-26 | 2014-08-26 | Accelerator powder gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410422620.4A CN104213927B (en) | 2014-08-26 | 2014-08-26 | Accelerator powder gas generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104213927A CN104213927A (en) | 2014-12-17 |
| CN104213927B true CN104213927B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410422620.4A Expired - Fee Related CN104213927B (en) | 2014-08-26 | 2014-08-26 | Accelerator powder gas generator |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4815860A (en) * | 1987-04-30 | 1989-03-28 | Degussa Aktiengesellschaft | Method and device for the continuous dosing of powdery substances by means of high-pressure gas |
| CN2898302Y (en) * | 2006-04-06 | 2007-05-09 | 郑州知信机电科技开发有限公司 | Wetting concrete jetter under mine |
| CN203257428U (en) * | 2013-04-12 | 2013-10-30 | 长沙科达建设机械制造有限公司 | Novel setting accelerator conveying system |
| CN203317561U (en) * | 2013-01-30 | 2013-12-04 | 北京新桥技术发展有限公司 | Automatic adding device of powder-liquid dual-purpose concrete admixtures |
| CN203515602U (en) * | 2013-10-15 | 2014-04-02 | 山东威特立邦矿山设备有限公司 | Pneumatic liquid accelerating agent adding device |
| CN204082171U (en) * | 2014-08-26 | 2015-01-07 | 班珊珊 | Accelerating admixture powder gas generator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4494923B2 (en) * | 2004-10-07 | 2010-06-30 | 富士テック株式会社 | Quick setting agent supply device |
-
2014
- 2014-08-26 CN CN201410422620.4A patent/CN104213927B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4815860A (en) * | 1987-04-30 | 1989-03-28 | Degussa Aktiengesellschaft | Method and device for the continuous dosing of powdery substances by means of high-pressure gas |
| CN2898302Y (en) * | 2006-04-06 | 2007-05-09 | 郑州知信机电科技开发有限公司 | Wetting concrete jetter under mine |
| CN203317561U (en) * | 2013-01-30 | 2013-12-04 | 北京新桥技术发展有限公司 | Automatic adding device of powder-liquid dual-purpose concrete admixtures |
| CN203257428U (en) * | 2013-04-12 | 2013-10-30 | 长沙科达建设机械制造有限公司 | Novel setting accelerator conveying system |
| CN203515602U (en) * | 2013-10-15 | 2014-04-02 | 山东威特立邦矿山设备有限公司 | Pneumatic liquid accelerating agent adding device |
| CN204082171U (en) * | 2014-08-26 | 2015-01-07 | 班珊珊 | Accelerating admixture powder gas generator |
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| CN104213927A (en) | 2014-12-17 |
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