CN208294536U - A kind of construction of shotcrete is with by pneumatically placed concrete and accelerator temperature elevation system - Google Patents
A kind of construction of shotcrete is with by pneumatically placed concrete and accelerator temperature elevation system Download PDFInfo
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- CN208294536U CN208294536U CN201820783951.4U CN201820783951U CN208294536U CN 208294536 U CN208294536 U CN 208294536U CN 201820783951 U CN201820783951 U CN 201820783951U CN 208294536 U CN208294536 U CN 208294536U
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Abstract
The utility model discloses a kind of construction of shotcrete with by pneumatically placed concrete and accelerator temperature elevation system, including accelerator tank, concrete sprayer, wind station, spray head and heat riser, the pipeline junction at accelerator tank and/or wind station and solidifying native spraying machine is arranged in heat riser, is sprayed after the pressure wind of heat riser heating and/or accelerator are mixed with the material of solidifying native spraying machine by spray head and completes construction.The utility model can effectively reduce accelerator usage amount by heating up to by pneumatically placed concrete and accelerator, shorten final setting time, reduce rebound effect, improve working efficiency.
Description
Technical field
The utility model belongs to construction of shotcrete technical field, and in particular to a kind of construction of shotcrete is with being sprayed
Concrete and accelerator temperature elevation system.
Background technique
No matter construction of shotcrete uses large-scale trolley or small jetting machine, there is gunite concrete freezing period, rebound
The problems such as rate and working efficiency, directly affect construction of shotcrete and quality.If the activity of cement is low in concrete, water
Glue material environment temperatures more at different levels than big or concrete are low, at this moment just will appear that gunite concrete solidification is slow, rebound is big, accelerator is used
Measure the problems such as big.Due to there is ground leak, the coagulation being injected on palisades in roadway support, tunnel and the culvert operation in mine
Soil must lose flowability quickly, otherwise will fall off because of flowing.
Utility model content
It is a kind of the technical problem to be solved by the utility model is in view of the deficiency of the prior art, provide
Construction of shotcrete is with by pneumatically placed concrete and accelerator temperature elevation system, by heating up to by pneumatically placed concrete and accelerator,
Accelerator usage amount can be effectively reduced, final setting time is shortened, rebound effect is reduced, improves working efficiency.
The utility model uses following technical scheme:
A kind of construction of shotcrete is sprayed with by pneumatically placed concrete and accelerator temperature elevation system, including accelerator tank, concrete
Machine, wind station and heat riser are penetrated, heat riser is separately positioned on accelerator tank and/or wind station and connect with the pipeline of solidifying native spraying machine
Place, for will be sprayed after the pressure wind and/or accelerator that heat riser heats are mixed with the material of solidifying native spraying machine by spray head
Construction is completed out.
Specifically, accelerator tank is connect with one end of accelerator pipeline, one end connection of concrete sprayer and feed pipe,
Wind station and one end of pressure air pipe connect, and connect after the other end connection of accelerator pipeline, feed pipe and pressure air pipe with spray head.
Further, heat riser includes that heating tank body, temperature-controlled cabinet and pressure gauge, the side for heating tank body are provided with
Air inlet heats and is provided with exhaust outlet at the top of tank body, and air inlet and exhaust outlet are for connecting corresponding pipeline, temperature-controlled cabinet
It is connect respectively with heating tank body with pressure gauge, for temperature adjusting and pressure monitor.
Further, it is provided with electric heating tube in heating tank body, the inner cavity of heating tank body is provided with multiple refluence plates.
Further, temperature-controlled cabinet uses high-precision digital-display temperature controller temperature control.
Further, the junction of the other end of accelerator pipeline and feed pipe and pressure air pipe is provided with the second heating dress
It sets, the second heat riser is for heating the accelerator in accelerator pipeline.
Further, the junction of the other end of pressure air pipe and feed pipe and accelerator pipeline is provided with third heating and fills
It sets, third heat riser is for heating the pressure wind in wind station.
Further, accelerator tank exit is provided with the first heating device, the air inlet of the first heating device and rapid hardening
The outlet of agent tank connects, and the gas outlet of the first heating device is connect with one end of accelerator pipeline.
Compared with prior art, the utility model at least has the advantages that
With by pneumatically placed concrete and accelerator temperature elevation system, heat riser is arranged in speed the utility model construction of shotcrete
The pipeline junction at solidifying agent tank and/or wind station and solidifying native spraying machine, pressure wind and/or accelerator by heat riser heating with
It is sprayed after the material mixing of solidifying soil spraying machine by spray head and completes construction, concrete is mixed and stirred into material using heating technology and is heated up
Jet pipe is transported to until spraying, the temperature that spraying machine sprays material can be improved by the heating treatment of setting, accelerate concrete
Setting time reduces rebound, improves efficiency.
Further, accelerator pipeline, feed pipe and pressure air pipe converge at spray head, make accelerator, concrete and pressure
Wind sprays after being sufficiently mixed through spray head.
Further, heat riser includes on the temperature-controlled cabinet and heating tank body for heat tank body, connection heating tank body
Pressure gauge, air inlet and air outlet, heating tank body press wind to be heated for storing to flow through, and temperature-controlled cabinet setting is suitable for
Temperature, pressure gauge carry out pressure protection, reach effectively heating and security effectiveness.
Further, temperature-controlled cabinet PID precision is high, and temperature deviation is small, controls electric heating wire resistance in tank body and efficiently mentions
For thermal energy, heating heating tank substance in vivo can be acted on rapidly, accurate temperature controlling while makes equipment safe and stable operation for a long time.
Further, it after the accelerator that accelerator tank comes out enters the second heat riser being connected by pipeline, carries out
After heating treatment and by pneumatically placed concrete and pressure wind facies mixing, it can be substantially reduced accelerator usage amount, and largely promoted
The speed that accelerator is reacted with gypsum in cement weakens the deferred action of gypsum, causes the rapid aquation of mixture Minerals, thus
The cement in concrete is set to accelerate condensation.
Further, wind station wind enters in heating tank body and is recycled, and uses with the temperature-controlled cabinet same period, reaches setting temperature
Pressure wind after degree will be discharged from hot-air air outlet, effectively convert hot and cold wind, the pressure wind of heating process is completed in heating tank body
Or accelerator is discharged from the hot-air air outlet, is used cooperatively with heated accelerator, can be substantially reduced accelerator
Usage amount, and the speed that accelerator is reacted with gypsum in cement is largely promoted, weaken the deferred action of gypsum, causes to mix
The material rapid aquation of Minerals is closed, so that the cement in concrete be made to accelerate condensation.
Further, settable heat riser in accelerator tank directly carries out heat effect to substance in accelerator tank, by
Hot volume is big, more efficient, keeps the temperature for heating substance more uniform, is mounting relatively easy.
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Detailed description of the invention
Fig. 1 is Tthe utility model system schematic diagram；
Fig. 2 is the utility model heat riser schematic diagram.
Wherein: 1. heating tank bodies；2. temperature-controlled cabinet；3. pressure gauge；4. air inlet；5. exhaust outlet；6. accelerator tank；7.
Concrete sprayer；8. wind station；9. spray head；10. the first heating device；11. the second heat riser；12. third heat riser；
13. accelerator pipeline；14. feed pipe；15. pressure air pipe.
Specific embodiment
In the description of the present invention, it should be understood that term "inner", "outside", " side ", " one end ", " one side "
The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, and being merely for convenience of description, this is practical new
Type and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation
Construction and operation, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " are only used for describing
Purpose is not understood to indicate or imply relative importance or implicitly indicates the quantity of indicated technical characteristic.As a result,
Define " first ", the feature of " second " can explicitly or implicitly include one or more of the features.It is practical at this
In novel description, unless otherwise indicated, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
The utility model provides a kind of construction of shotcrete with by pneumatically placed concrete and accelerator temperature elevation system, existing
Heat riser is installed at the air inlet and additive mouth of various types gunite concrete machine, makes that wind and additive temperature is pressed to increase.
Material and additive reach the bulk temperature that jet pipe ejects material by heating and chutable concrete immixture.Both it realized
Shorten the setting time for ejecting concrete, reduce accelerator volume, improves intensity, and can avoid the rebound of gunite concrete
Problem, to improve operating efficiency.
Referring to Fig. 1, a kind of construction of shotcrete of the utility model is with by pneumatically placed concrete and accelerator temperature elevation system, packet
Accelerator tank 6, concrete sprayer 7, wind station 8, spray head 9 and heat riser are included, heat riser is located at various types injection coagulation
The air inlet of native machine, it is mixed into various types injection for will be conveyed after the pressure wind of heat riser becomes the wind of set temperature
Material is heated in solidifying soil machine, is sprayed.
Specifically, accelerator tank 6 is connect with one end of accelerator pipeline 13, the one of concrete sprayer 7 and feed pipe 14
End connection, wind station 8 are connect with one end of pressure air pipe 15, the other end of accelerator pipeline 13, feed pipe 14 and pressure air pipe 15
It is connect after convergence with spray head 9, heat riser is provided in accelerator pipeline 13 and pressure air pipe 15, for what is generated to wind station
Wind and accelerator is pressed to carry out heating treatment.
Referring to Fig. 2, heat riser includes heating tank body 1, temperature-controlled cabinet 2 and pressure gauge 3, heating tank body 1 is provided with
Air inlet 4 and exhaust outlet 5, air inlet 4 are located at the side of heating tank body 1, and exhaust outlet 5 is located at the top of heating tank body 1, temperature control
Case 2 and pressure gauge 3 processed are connect with heating tank body 1 respectively, adjust control for temperature.
Stainless steel electric heating tube is provided in heating tank body 1, multiple refluence plates are arranged in heating 1 inner cavity of tank body, for extending
Air is in the heating 1 inner cavity residence time of tank body, to improve heat exchanger effectiveness, effectively promotes temperature.
Temperature-controlled cabinet 2 uses high-precision digital-display temperature controller temperature control, and PID precision is high, and temperature deviation is small, has overtemperature report
The functions such as police, anti-dry, pressure protection guarantee to make equipment safe and stable operation for a long time while accurate temperature controlling.
Heat riser includes the first heating device 10, the second heat riser 11 and third heat riser 12, the first heating dress
10 settings are set in accelerator tank 6, are connect with one end of accelerator pipeline 13, can be used for directly to substance in accelerator tank 6 into
Row heating, heating surface area is big, and bulk temperature is more uniform；
Second heat riser 11 is arranged in accelerator pipeline 13 at spray head 9, and the setting of third heat riser 12 is in pressure wind
Pipeline 15 is at spray head 9.
A kind of operating method of the construction of shotcrete of the utility model by pneumatically placed concrete and accelerator temperature elevation system, tool
Body the following steps are included:
S1, by one end of pressure air pipe, feed pipe and accelerator pipeline respectively with wind station, concrete sprayer and accelerator
Tank connection, the other end are connect after converging with spray head, and the first heating device is arranged in the junction of accelerator tank and accelerator pipeline,
Second heat riser is set at spray head in pressure air pipe, third heating dress is set at spray head in accelerator pipeline
It sets；
S2, according to the construction requirement of concrete and accelerator, the first heating device, the second heat riser and/or the respectively
Three heat risers are heated.
When accelerator viscosity is in 8*10-3~2.5*10-2When Pa.s, the first heating device 10 is opened, in accelerator tank 6
Accelerator pass through nozzle after accelerator pipeline 13 is mixed with mixture after the first heating device 10 is heated to 50~150 DEG C
9 spray；
When environment temperature is lower than 30 DEG C, the second heat riser 11 is opened, and the accelerator in accelerator pipeline 13 is through second
Heat riser 11 is sprayed after mixing with mixture through pressure wind after being heated to 50~150 DEG C by nozzle 9；
When environment temperature is 0~10 DEG C and need to reduce accelerator dosage, third heat riser 12 is opened, the pressure at wind station 8
Wind is sprayed after mixing after third heat riser 12 is heated to 30~65 DEG C with mixture, accelerator by nozzle 9；
When environment temperature is 10~30 DEG C, the second heat riser 11 and third heat riser 12 are opened, 50~150 DEG C
Accelerator is sprayed after mixing with 30~65 DEG C of pressure wind with mixture by nozzle 9；
When environment temperature is 10~30 DEG C and accelerator viscosity is in 8*10-3~2.5*10-2When Pa.s, the first heating dress
The 10, second heat riser 11 and third heat riser 12 is set to open, 50~150 DEG C of accelerator and 30~65 DEG C of pressure wind with mix
It is sprayed after closing material mixing by nozzle 9.
This method is by the first heating device, the second heat riser and third heat riser with the use of completion to construction
With the processing of concrete, wind station air temperature is set as 30~65 DEG C by temperature-controlled cabinet, additive pipe temperature is set
It is 50~150 DEG C, so that preference temperature acts on accelerator or unclassified stores, to promote condensation timeliness and reduce rebound
Rate.
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.The usually description in attached drawing here
The component of the utility model embodiment with shown in can be arranged and be designed by a variety of different configurations.Therefore, right below
The detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit claimed invention
Range, but it is merely representative of the selected embodiment of the utility model.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without creative efforts belongs to the utility model protection
Range.
Embodiment 1
The side wall of third heat riser 12 drives port 4 into, and port 5 is outputed at top, and air inlet 4 passes through pressure air pipe 15 and wind
It stands 8 connections, air outlet 5 connect after connect respectively with feed pipe 14 and accelerator pipeline 13 with spray head 9, the pressure wind of the offer of wind station 8
Enter heating tank body 1 from air inlet 4, warming cycle is carried out using 2 pairs of pressure wind of temperature-controlled cabinet, after being heated to 30~65 DEG C
It is sprayed after being mixed by the discharge of air outlet 5 with the accelerator of the mixture of feed pipe 14 and accelerator pipeline 13 by nozzle,
The needs of various types concrete sprayer can be applicable in, concrete setting phase, decreasing rebound are shortened.
Embodiment 2
The side wall of second heat riser 11 drives port 4 into, and port 5 is outputed at top, and air inlet 4 is connect with accelerator pipeline 13
For accessing accelerator, gas outlet 5 is connect with feed pipe 14 and pressure air pipe 15 respectively;
The temperature of the control heating tank body 1 of temperature-controlled cabinet 2, will be in heated accelerator and feed pipe 14 at 50~70 DEG C
Mixture mixing after sprayed by nozzle 9, concrete coagulating time shortens 20~30%, and rebound reduces；
The temperature of the control heating tank body 1 of temperature-controlled cabinet 2 is at 70~150 DEG C, by heated accelerator and feed pipe 14
It is sprayed after interior mixture mixing by nozzle 9, concrete coagulating time shortens 30~50%, and rebound is corresponding smaller.
Preferably, embodiment 1 and embodiment 2 can be operated simultaneously, preferably improve temperature rise effect, reduced concrete and made
Problems caused by long, rebound of industry freezing period etc..
Heat riser is installed additional to the concrete prefabricated material progress different temperatures of same proportion, different parts to test, it is each
Secondary embodiment carries out 3 parallel tests, and testing result is as follows:
As seen from the above table, under condition of different temperatures, initial set and the final setting time of the gunite concrete of same proportion have aobvious
It writing and changes, relative intensity is equal > and 80%, it can definitely show that the raising of temperature helps to shorten in cement setting time, reduce
Accelerator usage amount, decreasing rebound effect, hence it is evident that improve working efficiency.
The utility model is directed to the gunite concrete that when existing large size pumps or various types gunite concrete machine has
The problems such as setting time, rebound and efficiency afterwards.The utilization rate of accelerator is improved, so that concrete and accelerator effect are imitated
Rate is high.Both the setting time for shortening and ejecting concrete is realized, accelerator volume is reduced, improves intensity, and can avoid injection
The rebound problem of concrete, to improve operating efficiency.
The above content is only to illustrate the technical idea of the utility model, and the protection model of the utility model cannot be limited with this
Enclose, it is all according to the utility model proposes technical idea, any changes made on the basis of the technical scheme each falls within this reality
Within protection scope with novel claims.
Claims (8)
1. a kind of construction of shotcrete is with by pneumatically placed concrete and accelerator temperature elevation system, which is characterized in that including accelerator tank
(6), concrete sprayer (7), wind station (8) and heat riser, heat riser are separately positioned on accelerator tank (6) and/or wind station
(8) with the pipeline junction of solidifying native spraying machine (7), for the pressure wind and/or accelerator and solidifying soil of heat riser heating will to be passed through
It is sprayed after the material mixing of spraying machine (7) by spray head (9) and completes construction.
2. a kind of construction of shotcrete according to claim 1 is with by pneumatically placed concrete and accelerator temperature elevation system, spy
Sign is that accelerator tank (6) is connect with one end of accelerator pipeline (13), the one of concrete sprayer (7) and feed pipe (14)
End connection, wind station (8) are connect with one end of pressure air pipe (15), accelerator pipeline (13), feed pipe (14) and pressure air pipe
(15) it is connect after other end connection with spray head (9).
3. a kind of construction of shotcrete according to claim 2 is with by pneumatically placed concrete and accelerator temperature elevation system, spy
Sign is that heat riser includes heating tank body (1), temperature-controlled cabinet (2) and pressure gauge (3), the side setting of heating tank body (1)
Have air inlet (4), be provided with exhaust outlet (5) at the top of heating tank body (1), air inlet (4) and exhaust outlet (5) are for connecting correspondence
Pipeline, temperature-controlled cabinet (2) and pressure gauge (3) connects with heating tank body (1) respectively, for temperature adjusting and pressure monitor.
4. a kind of construction of shotcrete according to claim 3 is with by pneumatically placed concrete and accelerator temperature elevation system, spy
Sign is, is provided with electric heating tube in heating tank body (1), and the inner cavity of heating tank body (1) is provided with multiple refluence plates.
5. a kind of construction of shotcrete according to claim 3 is with by pneumatically placed concrete and accelerator temperature elevation system, spy
Sign is that temperature-controlled cabinet (2) uses high-precision digital-display temperature controller temperature control.
6. a kind of construction of shotcrete according to claim 2 is with by pneumatically placed concrete and accelerator temperature elevation system, spy
Sign is that the other end of accelerator pipeline (13) and feed pipe (14) and the junction of pressure air pipe (15) are provided with the second heating
Device (11), the second heat riser (11) is for heating the accelerator in accelerator pipeline (13).
7. a kind of construction of shotcrete according to claim 2 is with by pneumatically placed concrete and accelerator temperature elevation system, spy
Sign is that the other end of pressure air pipe (15) and feed pipe (14) and the junction of accelerator pipeline (13) are provided with third heating
Device (12), third heat riser (12) is for heating the pressure wind in wind station (8).
8. a kind of construction of shotcrete according to claim 2 is with by pneumatically placed concrete and accelerator temperature elevation system, spy
Sign is that accelerator tank (6) exit is provided with the first heating device (10), the air inlet of the first heating device (10) and rapid hardening
The outlet of agent tank (6) connects, and the gas outlet of the first heating device (10) is connect with one end of accelerator pipeline (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820783951.4U CN208294536U (en) | 2018-05-24 | 2018-05-24 | A kind of construction of shotcrete is with by pneumatically placed concrete and accelerator temperature elevation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820783951.4U CN208294536U (en) | 2018-05-24 | 2018-05-24 | A kind of construction of shotcrete is with by pneumatically placed concrete and accelerator temperature elevation system |
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| Publication Number | Publication Date |
|---|---|
| CN208294536U true CN208294536U (en) | 2018-12-28 |
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| CN201820783951.4U Active CN208294536U (en) | 2018-05-24 | 2018-05-24 | A kind of construction of shotcrete is with by pneumatically placed concrete and accelerator temperature elevation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756939A (en) * | 2018-05-24 | 2018-11-06 | 陕西金石混凝土科技发展有限公司 | Construction of shotcrete is with by pneumatically placed concrete and accelerator temperature elevation system and method |
-
2018
- 2018-05-24 CN CN201820783951.4U patent/CN208294536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756939A (en) * | 2018-05-24 | 2018-11-06 | 陕西金石混凝土科技发展有限公司 | Construction of shotcrete is with by pneumatically placed concrete and accelerator temperature elevation system and method |
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