CN210082050U - Efficient precast concrete shield constructs section of jurisdiction and evaporates curing cellar for storing things - Google Patents
Efficient precast concrete shield constructs section of jurisdiction and evaporates curing cellar for storing things Download PDFInfo
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- CN210082050U CN210082050U CN201920134425.XU CN201920134425U CN210082050U CN 210082050 U CN210082050 U CN 210082050U CN 201920134425 U CN201920134425 U CN 201920134425U CN 210082050 U CN210082050 U CN 210082050U
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- 239000011178 precast concrete Substances 0.000 title claims abstract description 30
- 238000004321 preservation Methods 0.000 claims abstract description 78
- 230000003068 static effect Effects 0.000 claims abstract description 40
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 230000000630 rising effect Effects 0.000 claims abstract description 3
- 238000009423 ventilation Methods 0.000 claims description 24
- 238000012423 maintenance Methods 0.000 abstract description 105
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 239000004567 concrete Substances 0.000 abstract description 11
- 238000010276 construction Methods 0.000 abstract description 10
- 230000000284 resting effect Effects 0.000 abstract description 6
- 230000014759 maintenance of location Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 230000004087 circulation Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model provides an efficient precast concrete shield constructs section of jurisdiction steam curing cellar for storing things, including the kiln body, the internal portion of kiln includes the heat preservation district of resting in proper order, evaporates and supports the warm area, evaporates and supports the constant temperature district, evaporates and supports the cooling area by entry to export, evaporates and supports the warm area, evaporates and supports the constant temperature district and evaporate and support all to be equipped with a plurality of steam pipes of group in the cooling area. The precast concrete shield segment is placed on a maintenance vehicle, the strength of the precast concrete shield segment reaches 20MPA after passing through a static curing heat preservation area, a steam curing temperature rising area, a steam curing constant temperature area and a steam curing temperature reduction area in sequence, and the retention time of the maintenance vehicle in the static curing heat preservation area is 126-189 minutes. The utility model discloses can make precast concrete section of jurisdiction reach target strength in 6 hours, improve production efficiency. The utility model discloses construction and later stage operation need the input cost about 700 ten thousand yuan. Synthesize the field construction and produce the input, utilize the utility model discloses can practice thrift about 6000 ten thousand yuan of input, economic effect is showing. The concrete curing time is prolonged, and the early strength of the duct piece can be effectively improved.
Description
Technical Field
The utility model relates to a concrete prefabricated part evaporates supports equipment technical field, especially relates to an efficient precast concrete shield constructs section of jurisdiction and evaporates supports cellar for storing things.
Background
In the production of precast concrete shield segments in subway tunnels or underground pipe gallery projects, the conventional method is to adopt a ground form or a fixed kiln or a tunnel kiln with only 6 stations in a static maintenance area to carry out concrete steam maintenance on the precast concrete shield segments. The prior art has the following defects:
1) traditional ground mould steam curing mould adopts tarpaulin to cover logical steam curing on fixed production pedestal, through control air valve conveying steam, accomplishes concrete steam, and its production efficiency only has 1.5 circulations a day, and the operation environment is moist, dirty indiscriminate poor, and jack-up hoist and mount operation is frequent, has certain potential safety hazard.
2) After the fixed kiln steam curing mold enters the kiln, the temperature in the kiln is continuously changed according to the steam curing temperature of temperature rise, constant temperature and temperature reduction, workers carry out surface collection operation in the kiln, and the operation environment is severe.
3) The static curing time of concrete production of the duct piece by the tunnel kiln with only 6 stations in the static curing area is insufficient, so that common quality problems such as a large amount of bubbles, unsmooth line type of outer arc surfaces, cracks and the like of the side arc surfaces of the duct piece are easily caused, the production quality of the duct piece is poor, the production efficiency is insufficient for two cycles, and the efficiency is low.
Disclosure of Invention
The utility model discloses aim at solving prior art's not enough, and provide an efficient precast concrete shield constructs section of jurisdiction steam curing cellar for storing things.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
an efficient precast concrete shield segment steam curing cellar comprises a kiln body which is linearly arranged, a plurality of curing tracks are arranged in the kiln body along the kiln body, a plurality of curing vehicles which are used for driving on the curing tracks and bearing segment molds are arranged on the curing tracks, ferry tracks are arranged at the inlet and the outlet of the kiln body, ferry vehicles which are used for driving on the ferry tracks and transporting the curing vehicles are arranged on the ferry tracks,
the interior of the kiln body sequentially comprises a static curing heat preservation area, a steam curing heating area, a steam curing constant temperature area and a steam curing cooling area from an inlet to an outlet, adjacent areas are separated by heat preservation walls, spring doors which are convenient for a curing vehicle to pass through are arranged at the positions, located on a curing track, of the heat preservation walls, the surfaces of the spring doors are provided with heat preservation layers, the length ratio of the static curing heat preservation area to the steam curing heating area to the steam curing constant temperature area to the steam curing cooling area is 7:2:7:3,
a plurality of groups of steam pipes are arranged in the steam-curing temperature-increasing area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14, the input ends of the steam pipes are connected with the steam output end of the boiler room, a plurality of exhaust ports are arranged on the steam pipes at equal intervals, and the side walls of the steam-curing temperature-increasing area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14 are provided with access doors 6.
Preferably, the maintenance vehicle and the ferry vehicle are driven by motors.
Preferably, the number of the maintenance tracks is three and the maintenance tracks are arranged at equal intervals.
Preferably, the total length of the kiln body is 111 meters, the length of each maintenance track in the static maintenance heat preservation area can accommodate 7 maintenance vehicles, namely 7 stations, the length of each maintenance track in the steam maintenance heat preservation area can accommodate 2 stations, the length of each maintenance track in the steam maintenance heat preservation area can accommodate 7 stations, and the length of each maintenance track in the steam maintenance heat preservation area can accommodate 3 stations.
Preferably, a plurality of ventilation openings are arranged on the side wall of the kiln body of the static heat preservation area, and each ventilation opening is provided with two exhaust fans.
Preferably, the number of the ventilation openings of the static heat preservation area is four, and the ventilation openings are correspondingly arranged on the side walls of two sides of the kiln body.
Preferably, the steam pipes are all arranged along the extending direction of the curing track.
Preferably, the steam pipe divide into horizontal steam pipe and steam riser, and horizontal steam pipe is apart from 2 meters settings on ground, and horizontal steam pipe all is located maintenance orbital directly over, and the steam riser extends downwards to 0.6 meters height from horizontal steam pipe's both ends.
Preferably, 3 groups of four horizontal steam pipes 16 and 3 groups of two vertical steam pipes are arranged in the steam-curing temperature-raising area and the steam-curing temperature-reducing area, and 6 groups of four horizontal steam pipes and 6 groups of two vertical steam pipes are arranged in the steam-curing temperature-maintaining area.
The utility model has the advantages that: the utility model discloses can promote the concrete intensity of precast concrete section of jurisdiction to 20MPA in 6 hours, if adopt traditional steam maintenance to need 16 hours at least, improve production efficiency. The utility model discloses construction and later stage operation need the input cost about 700 ten thousand yuan. If the traditional process is adopted for production, under the same capacity, the construction investment of a project field can be saved by about 2000 ten thousand yuan; consider the input of synthesizing production factors such as section of jurisdiction stack, outward transport, personnel, material, equipment, utilize the utility model discloses it can practice thrift about 4000 ten thousand yuan of construction cost to produce 3 ten thousand ring sections of jurisdiction. Synthesize the field construction and produce the input, utilize the utility model discloses can practice thrift about 6000 ten thousand yuan of input, economic effect is showing. The utility model discloses set up 21 quiet maintenance stations, prolonged the quiet time of curing of concrete, can guarantee just begin to heat up after the concrete initial set and evaporate the foster, can effectively improve the early strength of section of jurisdiction.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of a static holding section;
FIG. 3 is a schematic structural diagram of a steam-curing temperature-raising area;
FIG. 4 is a schematic structural view of a steam-curing constant-temperature area;
FIG. 5 is a schematic structural diagram of a steam-curing cooling zone;
in the figure: 1-a kiln body; 2-maintaining the track; 3-maintenance vehicle; 4-ferry track; 5-ferry vehicle; 6-an access door; 11-a resting heat preservation area; 12-steam curing temperature rising zone; 13-steam-curing constant-temperature area; 14-steam-curing cooling area; 15-spring door; 16-a steam horizontal pipe; 111-a vent; 112-exhaust fan;
the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.
Detailed Description
The invention will be further described with reference to the following examples:
an efficient precast concrete shield segment steam curing cellar comprises a kiln body 1 which is linearly arranged, a plurality of curing tracks 2 are arranged in the kiln body 1 along the kiln body 1, a plurality of curing vehicles 3 which are used for driving on the curing tracks 2 and bearing segment molds are arranged on the curing tracks 2, ferry tracks 4 are arranged at the inlet and the outlet of the kiln body 1, ferry vehicles 5 which are used for driving on the ferry tracks 4 and transporting the curing vehicles 3 are arranged on the ferry tracks 4,
the interior of the kiln body 1 sequentially comprises a static heat preservation area 11, a steam-curing temperature-raising area 12, a steam-curing constant-temperature area 13 and a steam-curing temperature-reducing area 14 from an inlet to an outlet, adjacent areas are separated by heat preservation walls, the heat preservation walls are provided with spring doors 15 which are convenient for maintenance vehicles 3 to pass through and are positioned at the passing positions of the maintenance tracks 2, the surfaces of the spring doors 15 are provided with heat preservation layers, the length ratio of the static heat preservation area 11, the steam-curing temperature-raising area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14 is 7:2,
a plurality of groups of steam pipes are arranged in the steam-curing temperature-increasing area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14, the input ends of the steam pipes are connected with the steam output end of the boiler room, a plurality of exhaust ports are arranged on the steam pipes at equal intervals, and the side walls of the steam-curing temperature-increasing area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14 are provided with access doors 6.
Preferably, the maintenance vehicle 3 and the ferry vehicle 5 are both driven by a motor.
Preferably, the number of the curing track 2 is three and the curing track is arranged at equal intervals.
Preferably, the whole length of the kiln body 1 is 111 meters, the length of each maintenance track 2 in the static maintenance heat preservation area 11 can accommodate 7 maintenance vehicles 3, namely 7 stations, the length of each maintenance track 2 in the steam maintenance heat preservation area 12 can accommodate 2 stations, the length of each maintenance track 2 in the steam maintenance heat preservation area can accommodate 7 stations, and the length of each maintenance track 2 in the steam maintenance heat preservation area can accommodate 3 stations.
Preferably, a plurality of ventilation openings 111 are arranged on the side wall of the kiln body 1 of the static heat preservation area 11, and each ventilation opening 111 is provided with two exhaust fans 112.
Preferably, the number of the ventilation openings 111 of the resting heat preservation area 11 is four and the ventilation openings are correspondingly arranged on the side walls of the two sides of the kiln body 1.
Preferably, the steam pipes are all arranged along the extension direction of the curing track 2.
Preferably, the steam pipe divide into horizontal steam pipe 16 and steam riser, horizontal steam pipe 16 is apart from 2 meters settings on ground, horizontal steam pipe 16 all is located maintenance track 2 directly over, and the steam riser extends down to the height of 0.6 meters from the both ends of horizontal steam pipe 16 to ground.
Preferably, 3 groups of four horizontal steam pipes 16 and 3 groups of two vertical steam pipes are arranged in the steam-curing temperature-raising area 12 and the steam-curing temperature-reducing area 14, and 6 groups of four horizontal steam pipes 16 and 6 groups of two vertical steam pipes are arranged in the steam-curing temperature-maintaining area 13.
The utility model discloses an application method does: the precast concrete shield segment is placed on the maintenance vehicle 3 and sequentially passes through the static maintenance heat preservation area 11, the steam maintenance heating area 12, the steam maintenance constant temperature area 13 and the steam maintenance cooling area 14 to reach the strength of 20MPA, and the retention time of the maintenance vehicle 3 in the static maintenance heat preservation area 11 is 126-plus-one minutes.
The utility model discloses can promote the concrete intensity of precast concrete section of jurisdiction to 20MPA in 6 hours, if adopt traditional steam maintenance to need 16 hours at least, improve production efficiency. The utility model discloses construction and later stage operation need the input cost about 700 ten thousand yuan. If the traditional process is adopted for production, under the same capacity, the construction investment of a project field can be saved by about 2000 ten thousand yuan; consider the input of synthesizing production factors such as section of jurisdiction stack, outward transport, personnel, material, equipment, utilize the utility model discloses it can practice thrift about 4000 ten thousand yuan of construction cost to produce 3 ten thousand ring sections of jurisdiction. Synthesize the field construction and produce the input, utilize the utility model discloses can practice thrift about 6000 ten thousand yuan of input, economic effect is showing. The utility model discloses set up 21 quiet maintenance stations, prolonged the quiet time of curing of concrete, can guarantee just begin to heat up after the concrete initial set and evaporate the foster, can effectively improve the early strength of section of jurisdiction.
Example one
An efficient precast concrete shield segment steam curing cellar comprises a kiln body 1 which is linearly arranged, a plurality of curing tracks 2 are arranged in the kiln body 1 along the kiln body 1, a plurality of curing vehicles 3 which are used for driving on the curing tracks 2 and bearing segment molds are arranged on the curing tracks 2, ferry tracks 4 are arranged at the inlet and the outlet of the kiln body 1, ferry vehicles 5 which are used for driving on the ferry tracks 4 and transporting the curing vehicles 3 are arranged on the ferry tracks 4,
the interior of the kiln body 1 sequentially comprises a static heat preservation area 11, a steam-curing temperature-raising area 12, a steam-curing constant-temperature area 13 and a steam-curing temperature-reducing area 14 from an inlet to an outlet, adjacent areas are separated by heat preservation walls, the heat preservation walls are provided with spring doors 15 which are convenient for maintenance vehicles 3 to pass through and are positioned at the passing positions of the maintenance tracks 2, the surfaces of the spring doors 15 are provided with heat preservation layers, the length ratio of the static heat preservation area 11, the steam-curing temperature-raising area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14 is 7:2,
a plurality of groups of steam pipes are arranged in the steam-curing temperature-increasing area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14, the input ends of the steam pipes are connected with the steam output end of the boiler room, a plurality of exhaust ports are arranged on the steam pipes at equal intervals, and the side walls of the steam-curing temperature-increasing area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14 are provided with access doors 6.
Preferably, the maintenance vehicle 3 and the ferry vehicle 5 are both driven by a motor.
Preferably, the number of the curing track 2 is three and the curing track is arranged at equal intervals.
Preferably, the whole length of the kiln body 1 is 111 meters, the length of each maintenance track 2 in the static maintenance heat preservation area 11 can accommodate 7 maintenance vehicles 3, namely 7 stations, the length of each maintenance track 2 in the steam maintenance heat preservation area 12 can accommodate 2 stations, the length of each maintenance track 2 in the steam maintenance heat preservation area can accommodate 7 stations, and the length of each maintenance track 2 in the steam maintenance heat preservation area can accommodate 3 stations.
Preferably, a plurality of ventilation openings 111 are arranged on the side wall of the kiln body 1 of the static heat preservation area 11, and each ventilation opening 111 is provided with two exhaust fans 112.
Preferably, the number of the ventilation openings 111 of the resting heat preservation area 11 is four and the ventilation openings are correspondingly arranged on the side walls of the two sides of the kiln body 1.
Preferably, the steam pipes are all arranged along the extension direction of the curing track 2.
Preferably, the steam pipe divide into horizontal steam pipe 16 and steam riser, horizontal steam pipe 16 is apart from 2 meters settings on ground, horizontal steam pipe 16 all is located maintenance track 2 directly over, and the steam riser extends down to the height of 0.6 meters from the both ends of horizontal steam pipe 16 to ground.
Preferably, 3 groups of four horizontal steam pipes 16 and 3 groups of two vertical steam pipes are arranged in the steam-curing temperature-raising area 12 and the steam-curing temperature-reducing area 14, and 6 groups of four horizontal steam pipes 16 and 6 groups of two vertical steam pipes are arranged in the steam-curing temperature-maintaining area 13.
The precast concrete shield segment is placed on a maintenance truck 3 and sequentially passes through a static maintenance heat preservation area 11, a steam maintenance heating area 12, a steam maintenance constant temperature area 13 and a steam maintenance cooling area 14 to reach the strength of 20MPA, the retention time of the maintenance truck 3 in the static maintenance heat preservation area 11 is 126 minutes, and the total steam maintenance time is 5.5 hours.
Example two
An efficient precast concrete shield segment steam curing cellar comprises a kiln body 1 which is linearly arranged, a plurality of curing tracks 2 are arranged in the kiln body 1 along the kiln body 1, a plurality of curing vehicles 3 which are used for driving on the curing tracks 2 and bearing segment molds are arranged on the curing tracks 2, ferry tracks 4 are arranged at the inlet and the outlet of the kiln body 1, ferry vehicles 5 which are used for driving on the ferry tracks 4 and transporting the curing vehicles 3 are arranged on the ferry tracks 4,
the interior of the kiln body 1 sequentially comprises a static heat preservation area 11, a steam-curing temperature-raising area 12, a steam-curing constant-temperature area 13 and a steam-curing temperature-reducing area 14 from an inlet to an outlet, adjacent areas are separated by heat preservation walls, the heat preservation walls are provided with spring doors 15 which are convenient for maintenance vehicles 3 to pass through and are positioned at the passing positions of the maintenance tracks 2, the surfaces of the spring doors 15 are provided with heat preservation layers, the length ratio of the static heat preservation area 11, the steam-curing temperature-raising area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14 is 7:2,
a plurality of groups of steam pipes are arranged in the steam-curing temperature-increasing area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14, the input ends of the steam pipes are connected with the steam output end of the boiler room, a plurality of exhaust ports are arranged on the steam pipes at equal intervals, and the side walls of the steam-curing temperature-increasing area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14 are provided with access doors 6.
Preferably, the maintenance vehicle 3 and the ferry vehicle 5 are both driven by a motor.
Preferably, the number of the curing track 2 is three and the curing track is arranged at equal intervals.
Preferably, the whole length of the kiln body 1 is 111 meters, the length of each maintenance track 2 in the static maintenance heat preservation area 11 can accommodate 7 maintenance vehicles 3, namely 7 stations, the length of each maintenance track 2 in the steam maintenance heat preservation area 12 can accommodate 2 stations, the length of each maintenance track 2 in the steam maintenance heat preservation area can accommodate 7 stations, and the length of each maintenance track 2 in the steam maintenance heat preservation area can accommodate 3 stations.
Preferably, a plurality of ventilation openings 111 are arranged on the side wall of the kiln body 1 of the static heat preservation area 11, and each ventilation opening 111 is provided with two exhaust fans 112.
Preferably, the number of the ventilation openings 111 of the resting heat preservation area 11 is four and the ventilation openings are correspondingly arranged on the side walls of the two sides of the kiln body 1.
Preferably, the steam pipes are all arranged along the extension direction of the curing track 2.
Preferably, the steam pipe divide into horizontal steam pipe 16 and steam riser, horizontal steam pipe 16 is apart from 2 meters settings on ground, horizontal steam pipe 16 all is located maintenance track 2 directly over, and the steam riser extends down to the height of 0.6 meters from the both ends of horizontal steam pipe 16 to ground.
Preferably, 3 groups of four horizontal steam pipes 16 and 3 groups of two vertical steam pipes are arranged in the steam-curing temperature-raising area 12 and the steam-curing temperature-reducing area 14, and 6 groups of four horizontal steam pipes 16 and 6 groups of two vertical steam pipes are arranged in the steam-curing temperature-maintaining area 13.
The precast concrete shield segment is placed on a maintenance truck 3 and sequentially passes through a static maintenance heat preservation area 11, a steam maintenance heating area 12, a steam maintenance constant temperature area 13 and a steam maintenance cooling area 14 to reach the strength of 20MPA, the retention time of the maintenance truck 3 in the static maintenance heat preservation area 11 is 189 minutes, and the total steam maintenance time is 5.3 hours.
EXAMPLE III
An efficient precast concrete shield segment steam curing cellar comprises a kiln body 1 which is linearly arranged, a plurality of curing tracks 2 are arranged in the kiln body 1 along the kiln body 1, a plurality of curing vehicles 3 which are used for driving on the curing tracks 2 and bearing segment molds are arranged on the curing tracks 2, ferry tracks 4 are arranged at the inlet and the outlet of the kiln body 1, ferry vehicles 5 which are used for driving on the ferry tracks 4 and transporting the curing vehicles 3 are arranged on the ferry tracks 4,
the interior of the kiln body 1 sequentially comprises a static heat preservation area 11, a steam-curing temperature-raising area 12, a steam-curing constant-temperature area 13 and a steam-curing temperature-reducing area 14 from an inlet to an outlet, adjacent areas are separated by heat preservation walls, the heat preservation walls are provided with spring doors 15 which are convenient for maintenance vehicles 3 to pass through and are positioned at the passing positions of the maintenance tracks 2, the surfaces of the spring doors 15 are provided with heat preservation layers, the length ratio of the static heat preservation area 11, the steam-curing temperature-raising area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14 is 7:2,
a plurality of groups of steam pipes are arranged in the steam-curing temperature-increasing area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14, the input ends of the steam pipes are connected with the steam output end of the boiler room, a plurality of exhaust ports are arranged on the steam pipes at equal intervals, and the side walls of the steam-curing temperature-increasing area 12, the steam-curing constant-temperature area 13 and the steam-curing temperature-reducing area 14 are provided with access doors 6.
Preferably, the maintenance vehicle 3 and the ferry vehicle 5 are both driven by a motor.
Preferably, the number of the curing track 2 is three and the curing track is arranged at equal intervals.
Preferably, the whole length of the kiln body 1 is 111 meters, the length of each maintenance track 2 in the static maintenance heat preservation area 11 can accommodate 7 maintenance vehicles 3, namely 7 stations, the length of each maintenance track 2 in the steam maintenance heat preservation area 12 can accommodate 2 stations, the length of each maintenance track 2 in the steam maintenance heat preservation area can accommodate 7 stations, and the length of each maintenance track 2 in the steam maintenance heat preservation area can accommodate 3 stations.
Preferably, a plurality of ventilation openings 111 are arranged on the side wall of the kiln body 1 of the static heat preservation area 11, and each ventilation opening 111 is provided with two exhaust fans 112.
Preferably, the number of the ventilation openings 111 of the resting heat preservation area 11 is four and the ventilation openings are correspondingly arranged on the side walls of the two sides of the kiln body 1.
Preferably, the steam pipes are all arranged along the extension direction of the curing track 2.
Preferably, the steam pipe divide into horizontal steam pipe 16 and steam riser, horizontal steam pipe 16 is apart from 2 meters settings on ground, horizontal steam pipe 16 all is located maintenance track 2 directly over, and the steam riser extends down to the height of 0.6 meters from the both ends of horizontal steam pipe 16 to ground.
Preferably, 3 groups of four horizontal steam pipes 16 and 3 groups of two vertical steam pipes are arranged in the steam-curing temperature-raising area 12 and the steam-curing temperature-reducing area 14, and 6 groups of four horizontal steam pipes 16 and 6 groups of two vertical steam pipes are arranged in the steam-curing temperature-maintaining area 13.
The precast concrete shield segment is placed on a maintenance vehicle 3 and sequentially passes through a static maintenance heat preservation area 11, a steam maintenance heating area 12, a steam maintenance constant temperature area 13 and a steam maintenance cooling area 14 to reach the strength of 20MPA, the retention time of the maintenance vehicle 3 in the static maintenance heat preservation area 11 is 150 minutes, and the total steam maintenance time is 5.1 hours.
The present invention has been described above with reference to the specific embodiments, and it is obvious that the present invention is not limited by the above-mentioned manner, and various improvements made by the method concept and technical solution of the present invention or directly applied to other occasions without improvement are all within the protection scope of the present invention.
Claims (9)
1. An efficient precast concrete shield segment steam curing cellar comprises a kiln body (1) which is linearly arranged, and is characterized in that a plurality of curing tracks (2) are arranged in the kiln body (1) along the kiln body (1), a plurality of curing vehicles (3) which are used for driving on the curing tracks (2) and bearing segment molds are arranged on the curing tracks (2), ferry tracks (4) are arranged at the inlet and the outlet of the kiln body (1), ferry vehicles (5) which are used for driving on the ferry tracks (4) and transporting the curing vehicles (3) are arranged on the ferry tracks (4),
the interior of the kiln body (1) sequentially comprises a static curing heat preservation area (11), a steam curing heat-raising area (12), a steam curing constant temperature area (13) and a steam curing cooling area (14) from an inlet to an outlet, adjacent areas are separated by heat preservation walls, the passing parts of the heat preservation walls, which are positioned on the curing track (2), are respectively provided with a spring door (15) which is convenient for a curing vehicle (3) to pass through, the surface of the spring door (15) is provided with a heat preservation layer, the length ratio of the static curing heat preservation area (11), the steam curing heat-raising area (12), the steam curing constant temperature area (13) and the steam curing cooling area (14) is 7:2:7,
a plurality of groups of steam pipes are arranged in the steam-curing temperature-raising area (12), the steam-curing constant-temperature area (13) and the steam-curing temperature-reducing area (14), the input ends of the steam pipes are connected with the steam output end of the boiler room, a plurality of exhaust ports are arranged on the steam pipes at equal intervals, and the side walls of the steam-curing temperature-raising area (12), the steam-curing constant-temperature area (13) and the steam-curing temperature-reducing area (14) are provided with access doors (6).
2. The high efficiency precast concrete shield segment steam curing pit as recited in claim 1, wherein the curing vehicle (3) and the ferry vehicle (5) are both motor driven.
3. The high-efficiency precast concrete shield segment steam curing pit as claimed in claim 2, wherein the number of the curing tracks (2) is three and the curing tracks are arranged at equal intervals.
4. The high-efficiency precast concrete shield segment steam curing kiln as recited in claim 3, is characterized in that the total length of the kiln body (1) is 111 meters, the length of each curing track (2) in the static curing heat preservation area (11) can accommodate 7 curing vehicles (3), namely 7 stations, the length of each curing track (2) in the steam curing heat preservation area (12) can accommodate 2 stations, the length of each curing track (2) in the steam curing heat preservation area can accommodate 7 stations, and the length of each curing track (2) in the steam curing heat preservation area can accommodate 3 stations.
5. The high-efficiency precast concrete shield segment steam curing cellar according to claim 4, wherein the side wall of the cellar body (1) of the static heat preservation area (11) is provided with a plurality of ventilation openings (111), and each ventilation opening (111) is provided with two exhaust fans (112).
6. The high-efficiency precast concrete shield segment steam curing kiln as recited in claim 5, wherein the number of the ventilation openings (111) of the static heat preservation area (11) is four and the ventilation openings are correspondingly arranged on the side walls of two sides of the kiln body (1).
7. The high-efficiency precast concrete shield segment steam curing cellar according to claim 6, wherein the steam pipes are all arranged along the extending direction of the curing track (2).
8. The high-efficiency precast concrete shield segment steam curing cellar according to claim 7, wherein the steam pipes are divided into horizontal steam pipes (16) and vertical steam pipes, the horizontal steam pipes (16) are arranged 2 m away from the ground, the horizontal steam pipes (16) are both positioned right above the curing track (2), and the vertical steam pipes extend downwards from two ends of the horizontal steam pipes (16) to a height of 0.6 m away from the ground.
9. The high-efficiency precast concrete shield segment steam curing cellar according to claim 8, wherein 3 groups of four horizontal steam pipes (16) and 3 groups of two vertical steam pipes are arranged in the steam curing temperature rising area (12) and the steam curing temperature reduction area (14), and 6 groups of four horizontal steam pipes (16) and 6 groups of two vertical steam pipes are arranged in the steam curing temperature reduction area (13).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676774A (en) * | 2019-01-26 | 2019-04-26 | 中交一航局第四工程有限公司 | A kind of steam-cured cellar of efficient precast concrete shield duct piece and its application method |
| CN114454326A (en) * | 2022-02-28 | 2022-05-10 | 中铁建(无锡)工程科技发展有限公司 | Concrete member production line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109676774A (en) * | 2019-01-26 | 2019-04-26 | 中交一航局第四工程有限公司 | A kind of steam-cured cellar of efficient precast concrete shield duct piece and its application method |
| CN114454326A (en) * | 2022-02-28 | 2022-05-10 | 中铁建(无锡)工程科技发展有限公司 | Concrete member production line |
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Address after: No.173, Xingang No.2 Road, Tanggu, Binhai New Area, Tianjin, 300450 Patentee after: Civil Aviation Airport Construction Engineering Co.,Ltd. Address before: No.173, Xingang No.2 Road, Tanggu, Binhai New Area, Tianjin, 300450 Patentee before: NO.4 ENGINEERING COMPANY LTD. OF CCCC FIRST HARBOR ENGINEERING Co.,Ltd. |
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