CN111002454A - Cement rapid curing device and using method thereof - Google Patents

Cement rapid curing device and using method thereof Download PDF

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Publication number
CN111002454A
CN111002454A CN201911392039.1A CN201911392039A CN111002454A CN 111002454 A CN111002454 A CN 111002454A CN 201911392039 A CN201911392039 A CN 201911392039A CN 111002454 A CN111002454 A CN 111002454A
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cavity
curing
cement
test piece
box
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CN111002454B (en
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钟晓升
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Shenzhen Baojinhua Concrete Co ltd
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Shenzhen Baojinhua Concrete Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B11/00Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/24Apparatus or processes for treating or working the shaped or preshaped articles for curing, setting or hardening
    • B28B11/247Controlling the humidity during curing, setting or hardening

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

The invention relates to a quick cement curing device and a using method thereof, wherein the curing device comprises a curing box and a control box, the bottom surface of the curing box is provided with a steam box, the inner cavity of the curing box is divided into a first cavity, a second cavity, a third cavity and a fourth cavity by a transverse partition plate and a vertical partition plate, and a temperature sensor, a humidity sensor and a test block bracket for placing a test piece mold are arranged in the first cavity, the second cavity, the third cavity and the fourth cavity; be equipped with electric heating element in the steam chest, the bottom surface of steam chest is equipped with the inlet outlet, is equipped with inlet outlet pipe in the inlet outlet, is equipped with the air duct in the vertical baffle, and the lower extreme of air duct is linked together with the inner chamber of steam chest, all communicates on the lateral wall of air duct to have the intake pipe that stretches into to first cavity, second cavity, third cavity and fourth cavity. The cement test piece maintenance device has the function of accelerating maintenance of a plurality of cement test pieces, and can accurately control the maintenance temperature and the maintenance humidity of each cement test piece.

Description

Cement rapid curing device and using method thereof
Technical Field
The invention relates to the field of cement performance detection, in particular to a quick cement curing device and a using method thereof.
Background
The strength of cement refers to the ability of cement mortar hardened test block to withstand external force damage, and the strength of cement is an important index for evaluating the physical and mechanical properties of cement and is the basis for dividing the strength grade of cement. In the cement strength detection process, standard curing of the formed cement test sample plate is required to be carried out in an environment of (20 +/-1) DEG C so as to detect the strength of the cement test sample plate after curing for 3 days and 28 days. The cement factory, building construction, scientific research and other units need to quickly maintain test blocks of ordinary portland cement, slag cement, pozzolan cement and fly ash cement so as to meet relevant industrial standards, such as T0509-94 'cement mortar strength quick test'.
Chinese utility model patent of publication No. CN206317216U in the prior art discloses a cement curing box, and this curing box is through inlaying at the main tank body top and establishing the piece that induced drafts, and the piece that should induced draft is used for absorbing the produced steam of curing box interior cement sample in the maintenance process, is equipped with on the main tank body simultaneously and arranges the exhaust vent outside the main tank body with the absorptive steam of the piece that induced drafts, carries out filtration purification treatment to the vapor that discharges simultaneously.
The above prior art solutions have the following drawbacks: the technical problem to be solved by the cement curing box is only how to purify water vapor generated in the cement curing process, but the problem of how to realize the rapid curing of cement in a short time range is not mentioned, so that the period of cement performance detection is effectively shortened.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the quick cement curing device which has the function of accelerating the curing of a plurality of cement test pieces and can accurately control the temperature and the humidity of each cement test piece.
One of the above objects of the present invention is achieved by the following technical solutions:
a quick cement curing device comprises a curing box and a control box, wherein the bottom surface of the curing box is provided with a steam box, the inner cavity of the curing box is divided into a first cavity, a second cavity, a third cavity and a fourth cavity through a transverse partition plate and a vertical partition plate, and a temperature sensor, a humidity sensor and a test block support for placing a test piece mold are arranged in the first cavity, the second cavity, the third cavity and the fourth cavity; an electric heating element is arranged in the steam box, a water inlet and a water outlet are arranged on the bottom surface of the steam box, and a water inlet and a water outlet pipe are arranged in the water inlet and the water outlet; an air guide pipe is arranged in the vertical partition plate, the lower end of the air guide pipe is communicated with an inner cavity of the steam box, air inlet pipes extending into the first cavity, the second cavity, the third cavity and the fourth cavity are communicated with the side wall of the air guide pipe, electromagnetic valves are arranged on the air inlet pipes, the side wall of the curing box mainly comprises a heat preservation layer positioned on the outer side and a heat conduction layer positioned on the inner side, a preheating channel is arranged in a gap between the heat preservation layer and the heat conduction layer, an exhaust pipe used for communicating an external space with the preheating channel is arranged on the heat preservation layer, four pressure regulating holes used for correspondingly communicating the first cavity, the second cavity, the third cavity, the fourth cavity and the preheating channel are formed in the heat conduction layer; the steam generated by heating of the electric heating element sequentially passes through the gas guide pipe and the four gas inlet pipes and respectively enters the first cavity, the second cavity, the third cavity or the fourth cavity, and after the air pressure in the first cavity, the second cavity, the third cavity or the fourth cavity reaches the set value of the pressure regulating valve, the pressure regulating valve is opened to realize the communication of the cavity and the preheating channel.
By adopting the technical scheme, the inner cavity of the curing box is divided into a first cavity, a second cavity, a third cavity and a fourth cavity by a transverse partition plate and a vertical partition plate, a temperature sensor for acquiring a temperature signal and a humidity sensor for acquiring a humidity signal are arranged in each cavity, an electric heating element works to heat water in a steam box to generate steam, and the steam enters the corresponding cavity through a gas guide pipe and a gas inlet pipe and is used for increasing the temperature and the humidity in the cavity so as to reach the curing temperature and the curing humidity set for the rapid curing of the cement test piece; meanwhile, excessive hot gas in the cavity can enter the preheating channel through the pressure regulating hole provided with the pressure regulating valve, so that the air pressure value in the cavity is kept constant, and the preheating channel surrounds the outer wall of the whole maintenance box, so that the heat loss of each cavity in the maintenance box is reduced, and the effects of saving energy and reducing consumption are achieved.
The present invention in a preferred example may be further configured to: the outer wall of control box is equipped with four temperature display screens that are used for showing first cavity respectively, the second cavity, the internal temperature of third cavity and fourth cavity, be equipped with four humidity display screens that are used for showing first cavity respectively on the control box, the second cavity, the internal humidity of third cavity and fourth cavity, install the controller in the control box, the controller is through first cavity, the second cavity, the temperature sensor in third cavity and the fourth cavity, temperature signal and humidity signal are gathered respectively to humidity sensor, send output signal after the operation processing of controller, be used for controlling the opening and close of four solenoid valves and the electric heating element of all installing in the intake pipe, and show in temperature display screen and humidity display screen real time.
Through adopting above-mentioned technical scheme, the temperature signal that temperature sensor gathered and the humidity signal input that humidity transducer gathered to the controller, send output signal after the operation processing of controller, output signal is used for controlling opening and close of solenoid valve and electric heating element in the corresponding cavity, has realized the automated inspection and the control of temperature and humidity in each cavity, has guaranteed the quick maintenance effect of cement test piece.
The present invention in a preferred example may be further configured to: the test block support is provided with two semicircular fixing rings, one ends of the two semicircular fixing rings are hinged to each other, the other ends of the two fixing rings are fixedly connected through bolts, and a test block mold is clamped between the two semicircular fixing rings.
Through adopting above-mentioned technical scheme, two solid fixed rings of this test block support can conveniently fix centre gripping test piece mould, can be applicable to not unidimensional test piece mould simultaneously, improve the fixed efficiency of centre gripping of cement test piece.
The present invention in a preferred example may be further configured to: and the exhaust pipe is provided with a pressure relief valve, and the pressure set value of the pressure relief valve is smaller than the set value of the pressure regulating valve.
By adopting the technical scheme, the difference of the air pressure values in the corresponding cavities can be controlled according to the difference of the pressure set values of the pressure release valves, and the air pressure values are kept constant, so that relatively constant maintenance conditions are provided.
The present invention in a preferred example may be further configured to: and a transverse channel is formed in the transverse partition plate, and two ends of the transverse channel are communicated with the preheating channel respectively.
Through adopting above-mentioned technical scheme, the transverse passage in the transverse baffle link up with preheating the passageway mutually for the steam that gets into from the cavity runs through in the middle part of curing box, further reduces the calorific loss of each cavity in the curing box.
The present invention in a preferred example may be further configured to: the transverse partition plate, the vertical partition plate and the side wall of the steam box are all made of heat insulation materials, and the curing box is provided with a glass door frame for sealing the first cavity, the second cavity, the third cavity and the fourth cavity.
Through adopting above-mentioned technical scheme, the material of horizontal baffle, vertical baffle and steam chest lateral wall is made by thermal insulation material, has reduced the calorific loss of each cavity in the curing box.
Aiming at the defects in the prior art, the invention also aims to provide a using method of the rapid cement curing device, which can accurately control the temperature and the humidity of a cement test piece and greatly shorten the conventional cement curing time.
The second purpose of the invention is realized by the following technical scheme:
the use method of the quick cement curing device comprises the following operation steps:
a. firstly, filling clean water into the steam box through a water inlet pipe and a water outlet pipe until the water level of the clean water is 2-4 cm higher than the top surface of the electric heating element, and stopping filling water;
b. opening a glass door frame outside any cavity in the curing box, placing a test piece mold filled with a cement test piece on a test piece bracket in the cavity, locking and fixing the test piece mold, and closing the glass door frame of the cavity to enable the glass door frame to be in sealing fit with the side wall of the curing box;
c. switching on an external power supply, manually setting the curing temperature, the curing humidity and the curing time of the cement test piece, opening an electromagnetic valve positioned in the cavity after setting all process parameters, communicating the cavity with the steam box through an air duct, and starting a start button to enter a rapid curing stage;
d. and when the temperature value and the humidity value in the cavity reach the manual set values of the cement test piece, stopping heating by the electric heating element, closing the electromagnetic valve in the cavity, opening the glass door frame of the cavity until the set curing time is reached, taking out the test piece mold from the test piece support, demolding the cement test piece from the test piece mold, and finishing the whole rapid curing process.
By adopting the technical scheme, the using method is based on the maintenance device and mainly comprises the steps of filling clean water into a steam box, placing a test piece mold into a maintenance box, setting various process parameters of maintenance, entering a rapid maintenance stage, demoulding a cement test piece from the test piece mold and the like.
The present invention in a preferred example may be further configured to: and a sealing strip is arranged on the edge of the inner side of the glass door frame.
Through adopting above-mentioned technical scheme, sealed setting is realized through the sealing strip at the inboard border of glass door frame to four cavitys of curing box for four cavitys of curing box are isolated mutually with the exterior space.
The present invention in a preferred example may be further configured to: and c, curing the cement test piece in the step c at the temperature of 45-55 ℃, at the humidity of 85-95% and for 15-25 h.
By adopting the technical scheme, the curing temperature of the cement test piece is 45-55 ℃, the curing humidity is 85-95%, and the curing time is 15-25 h, so that the rapid curing of the cement test piece is facilitated.
The present invention in a preferred example may be further configured to: and (3) demolding the cement test piece from the test piece mold, and then putting the cement test piece into a water tank with the water temperature of 20 +/-1 ℃ for curing for 25-35 min.
Through adopting above-mentioned technical scheme, the cement test piece is after the maintenance stage of curing box, puts into the further maintenance processing in the constant temperature basin, improves the maintenance effect of this cement test piece.
In summary, the invention includes at least one of the following beneficial technical effects:
the inner cavity of the curing box is divided into a first cavity, a second cavity, a third cavity and a fourth cavity by a transverse partition plate and a vertical partition plate, a temperature sensor for acquiring a temperature signal and a humidity sensor for acquiring a humidity signal are arranged in each cavity, an electric heating element works to heat water in a steam box to generate steam, and the steam enters the corresponding cavity through a gas guide pipe and a gas inlet pipe and is used for increasing the temperature and the humidity in the cavity so as to achieve the curing temperature and the curing humidity set for the rapid curing of a cement test piece; meanwhile, excessive hot gas in the cavity can enter the preheating channel through the pressure regulating hole provided with the pressure regulating valve, so that the air pressure value in the cavity is kept constant, and the preheating channel surrounds the outer wall of the whole maintenance box, so that the heat loss of each cavity in the maintenance box is favorably reduced, and the effects of saving energy and reducing consumption are achieved;
the using method is based on the maintenance device, and particularly mainly comprises the steps of filling clean water into a steam box, placing a test piece mold into a maintenance box, setting various maintenance process parameters, entering a rapid maintenance stage, demolding a cement test piece from the test piece mold and the like, so that the whole operation step is shorter and more convenient, the temperature and the humidity of the cement test piece can be accurately controlled, and the conventional cement maintenance time is greatly shortened;
the temperature signal acquired by the temperature sensor and the humidity signal acquired by the humidity sensor of the maintenance device are input to the controller, and output signals are sent out after the operation processing of the controller and are used for controlling the opening and closing of the electromagnetic valve and the electric heating element in the corresponding cavity, so that the automatic detection and control of the temperature and the humidity in each cavity are realized, and the quick maintenance effect of the cement test piece is ensured.
Drawings
FIG. 1 is a schematic structural view of a cement rapid curing apparatus.
Fig. 2 is a schematic structural view of a test block holder.
FIG. 3 is a schematic flow chart of a method for using the cement rapid curing device.
The reference signs are: 1. a curing box; 2. a control box; 3. a transverse partition; 4. a vertical partition plate; 5. a test block support; 6. an electrical heating element; 7. a steam box; 8. a temperature sensor; 9. a humidity sensor; 10. a first cavity; 11. a second cavity; 12. a third cavity; 13. a fourth cavity; 15. an electromagnetic valve; 16. a pressure regulating valve; 17. a controller; 18. a water inlet pipe and a water outlet pipe; 19. an air duct; 20. an air inlet pipe; 21. a heat-insulating layer; 22. a heat conductive layer; 23. a preheating channel; 24. an exhaust pipe; 25. a pressure relief valve; 26. a transverse channel; 27. a fixing ring; 28. a test piece mold; 29. a temperature display screen; 30. humidity display screen.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
referring to fig. 1 and 2, the cement fast curing device disclosed by the invention comprises a curing box 1 and a control box 2, wherein a steam box 7 is installed on the bottom surface of the curing box 1, an inner cavity of the curing box 1 is divided into a first cavity 10, a second cavity 11, a third cavity 12 and a fourth cavity 13 through a transverse partition plate 3 and a vertical partition plate 4, a temperature sensor 8, a humidity sensor 9 and a test block support 5 for placing a test block mold 28 are respectively arranged in the first cavity 10, the second cavity 11, the third cavity 12 and the fourth cavity 13, the test block support 5 is provided with two semicircular fixing rings 27 with one ends hinged with each other, the other ends of the two fixing rings 27 are fixedly connected through bolts, and the test block mold 28 is clamped between the two semicircular fixing rings 27; an electric heating element 6 is arranged in the steam box 7, a water inlet and a water outlet are arranged on the bottom surface of the steam box 7, and a water inlet and a water outlet pipe 18 are arranged in the water inlet and the water outlet; an air duct 19 is arranged in the vertical partition plate 4, the lower end of the air duct 19 is communicated with the inner cavity of the steam box 7, the side walls of the air duct 19 are communicated with an air inlet pipe 20 extending into the first cavity 10, the second cavity 11, the third cavity 12 and the fourth cavity 13, the air inlet pipe 20 is provided with an electromagnetic valve 15, the side wall of the curing box 1 mainly comprises a heat insulating layer 21 positioned at the outer side and a heat conducting layer 22 positioned at the inner side, a gap between the heat insulating layer 21 and the heat conducting layer 22 is a preheating channel 23, the heat insulating layer 21 is provided with an exhaust pipe 24 for communicating the outer space with the preheating channel 23, the exhaust pipe 24 is provided with a pressure release valve 25, the pressure set value of the pressure release valve 25 is smaller than the setting value of the pressure regulating valve 16, and the heat, the second cavity 11, the third cavity 12, the fourth cavity 13 and the pressure regulating hole of the preheating channel 23, and a pressure regulating valve 16 is arranged in the pressure regulating hole; the water vapor generated by heating of the electric heating element 6 sequentially passes through the air duct 19 and the four air inlet pipes 20 and respectively enters the first cavity 10, the second cavity 11, the third cavity 12 or the fourth cavity 13, and after the air pressure in the first cavity 10, the second cavity 11, the third cavity 12 or the fourth cavity 13 reaches the set value of the pressure regulating valve 16, the pressure regulating valve 16 is opened to realize the communication between the cavities and the preheating channel 23.
Referring to fig. 1, the outer wall of the control box 2 is provided with four temperature display screens 29 for respectively displaying the temperatures in the first cavity 10, the second cavity 11, the third cavity 12 and the fourth cavity 13, the control box 2 is provided with four humidity display screens 30 for respectively displaying the humidity in the first cavity 10, the second cavity 11, the third cavity 12 and the fourth cavity 13, a controller 17 is installed in the control box 2, the controller 17 respectively collects a temperature signal and a humidity signal through the temperature sensors 8 and the humidity sensors 9 in the first cavity 10, the second cavity 11, the third cavity 12 and the fourth cavity 13, and sends out an output signal after the operation processing of the controller 17, so as to control the opening and closing of the four electromagnetic valves 15 and the electric heating element 6 which are all installed on the air inlet pipe 20, and display the temperature display screens 29 and the humidity display screens 30 in real time.
A transverse channel 26 is arranged in the transverse partition plate 3, and two ends of the transverse channel 26 are respectively communicated with the preheating channel 23. The lateral walls of the transverse partition plate 3, the vertical partition plate 4 and the steam box 7 are all made of heat insulation materials, and the curing box 1 is respectively provided with a glass door frame for sealing the first cavity 10, the second cavity 11, the third cavity 12 and the fourth cavity 13.
The implementation principle of the embodiment is as follows: the inner cavity of the curing box 1 is divided into a first cavity 10, a second cavity 11, a third cavity 12 and a fourth cavity 13 by a transverse partition plate 3 and a vertical partition plate 4, a temperature sensor 8 for collecting temperature signals and a humidity sensor 9 for collecting humidity signals are arranged in each cavity, the collected signals are processed by a controller 17 to send output signals, and the output signals are used for controlling the opening and closing of an electromagnetic valve 15 and an electric heating element 6 in the corresponding cavity, so that the automatic detection and control of the temperature and the humidity in each cavity are realized, and the quick curing effect of a cement test piece is ensured; the electric heating element 6 works to heat water in the steam box 7 to generate steam, and the steam enters the corresponding cavity through the air duct 19 and the air inlet pipe 20 and is used for increasing the temperature and the humidity in the cavity so as to achieve the set curing temperature and curing humidity for the rapid curing of the cement test piece; meanwhile, excessive hot air in the cavity can enter the preheating channel 23 through the pressure regulating hole provided with the pressure regulating valve 16, so that the air pressure value in the cavity is kept constant, and the preheating channel 23 surrounds the outer wall of the whole curing box 1, so that the heat loss of the curing device is reduced.
Example two:
referring to fig. 1 and 3, the application method of the quick cement curing device disclosed by the invention comprises the following operation steps:
a. firstly, filling clean water into the steam box 7 through a water inlet and outlet pipe 18 until the water level of the clean water is 2-4 cm higher than the top surface of the electric heating element 6, and stopping filling water;
b. opening a glass door frame on the outer side of any cavity in the curing box 1, placing a test piece mold 28 filled with a cement test piece on the test piece support 5 in the cavity, locking and fixing the test piece mold 28, closing the glass door frame of the cavity, and arranging a sealing strip on the inner side edge of the glass door frame to enable the glass door frame to be in sealing fit with the side wall of the curing box 1;
c. switching on an external power supply, manually setting the curing temperature, curing humidity and curing time of the cement test piece, wherein the curing temperature of the cement test piece is 45-55 ℃, the curing humidity is 85-95%, and the curing time is 15-25 h;
d. and when the temperature value and the humidity value in the cavity reach the manual set values of the cement test piece, stopping heating the electric heating element 6, closing the electromagnetic valve 15 in the cavity, opening the glass door frame of the cavity until the set curing time is reached, taking out the test piece mold 28 from the test piece support 5, demolding the cement test piece from the test piece mold 28, putting the cement test piece into a water tank with the water temperature of 20 +/-1 ℃ for curing for 25-35 min after demolding the cement test piece from the test piece mold 28, and finishing the whole rapid curing process.
The implementation principle of the embodiment is as follows: based on the first disclosed cement quick maintenance device of embodiment, this embodiment discloses that this maintenance device's application method specifically mainly includes that the steam box 7 is filled with clean water, test piece mould 28 is placed in maintenance box 1, each item technological parameter of setting for maintenance, enters the quick maintenance stage, the cement test piece is from the drawing of patterns in test piece mould 28 etc. whole operating procedure is more succinct and convenient, can the accurate temperature and the humidity of control cement test piece, has shortened the time of conventional cement maintenance greatly.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims (10)

1. The utility model provides a quick curing means of cement, includes curing box (1), control box (2), and steam chest (7), its characterized in that are installed to the bottom surface of curing box (1): an inner cavity of the curing box (1) is divided into a first cavity (10), a second cavity (11), a third cavity (12) and a fourth cavity (13) through a transverse partition plate (3) and a vertical partition plate (4), and a temperature sensor (8), a humidity sensor (9) and a test block support (5) for placing a test block mold (28) are arranged in the first cavity (10), the second cavity (11), the third cavity (12) and the fourth cavity (13); an electric heating element (6) is arranged in the steam box (7), a water inlet and a water outlet are arranged on the bottom surface of the steam box (7), and a water inlet and a water outlet pipe (18) are arranged in the water inlet and the water outlet; an air duct (19) is arranged in the vertical partition plate (4), the lower end of the air duct (19) is communicated with an inner cavity of the steam box (7), air inlet pipes (20) extending into the first cavity (10), the second cavity (11), the third cavity (12) and the fourth cavity (13) are communicated with the side walls of the air duct (19), electromagnetic valves (15) are mounted on the air inlet pipes (20), the side walls of the curing box (1) mainly comprise a heat insulation layer (21) positioned on the outer side and a heat conduction layer (22) positioned on the inner side, a preheating channel (23) is arranged in a gap between the heat insulation layer (21) and the heat conduction layer (22), exhaust pipes (24) used for communicating an external space with the preheating channel (23) are arranged on the heat insulation layer (21), and four pressure regulating holes used for correspondingly communicating the first cavity (10), the second cavity (11), the third cavity (12), the fourth cavity (13) and the preheating channel (23) are formed in the heat conduction layer (22, a pressure regulating valve (16) is arranged in the pressure regulating hole; vapor generated by heating of the electric heating element (6) sequentially passes through the air guide pipe (19) and the four air inlet pipes (20) and respectively enters the first cavity (10), the second cavity (11), the third cavity (12) or the fourth cavity (13), and after air pressure in the first cavity (10), the second cavity (11), the third cavity (12) or the fourth cavity (13) reaches the setting value of the pressure regulating valve (16), the pressure regulating valve (16) is opened to realize communication between the cavities and the preheating channel (23).
2. The quick cement curing device of claim 1, wherein: the outer wall of the control box (2) is provided with four temperature display screens (29) for respectively displaying the temperature in the first cavity (10), the second cavity (11), the third cavity (12) and the fourth cavity (13), the control box (2) is provided with four humidity display screens (30) for respectively displaying the humidity in the first cavity (10), the second cavity (11), the third cavity (12) and the fourth cavity (13), a controller (17) is arranged in the control box (2), the controller (17) respectively collects temperature signals and humidity signals through temperature sensors (8) and humidity sensors (9) in the first cavity (10), the second cavity (11), the third cavity (12) and the fourth cavity (13), and sends output signals after operation processing of the controller (17) so as to control the opening and closing of four electromagnetic valves (15) and electric heating elements (6) which are all arranged on the air inlet pipe (20), and the real-time display is carried out on a temperature display screen (29) and a humidity display screen (30).
3. The quick cement curing device of claim 1, wherein: the test block support (5) is provided with two semicircular fixing rings (27) with one ends hinged to each other, the other ends of the two fixing rings (27) are fixedly connected through bolts, and a test block mold (28) is clamped between the two semicircular fixing rings (27).
4. The quick cement curing device of claim 1, wherein: and a pressure relief valve (25) is mounted on the exhaust pipe (24), and the pressure set value of the pressure relief valve (25) is smaller than the set value of the pressure regulating valve (16).
5. A cement rapid maintenance device according to any one of claims 1 to 4, characterized in that: and a transverse channel (26) is formed in the transverse partition plate (3), and two ends of the transverse channel (26) are respectively communicated with the preheating channel (23).
6. A cement quick curing device according to claim 5, characterized in that: the lateral walls of the transverse partition plate (3), the vertical partition plate (4) and the steam box (7) are all made of heat insulation materials, and the curing box (1) is provided with a glass door frame for sealing the first cavity (10), the second cavity (11), the third cavity (12) and the fourth cavity (13).
7. The use method of the cement quick maintenance device of claim 1 is characterized by comprising the following operation steps:
a. firstly, clean water is filled into the steam box (7) through a water inlet and outlet pipe (18) until the water level of the clean water is 2-4 cm higher than the top surface of the electric heating element (6), and the water filling is stopped;
b. opening a glass door frame on the outer side of any cavity in the curing box (1), placing a test piece mold (28) filled with a cement test piece on a test piece support (5) in the cavity, locking and fixing the test piece mold (28), and closing the glass door frame of the cavity to enable the glass door frame to be in sealing fit with the side wall of the curing box (1);
c. an external power supply is switched on, the curing temperature, the curing humidity and the curing time of the cement test piece are manually set, after all process parameters are set, an electromagnetic valve (15) positioned in the cavity is opened, the cavity is communicated with a steam box (7) through an air duct (19), and a start button is started to enter a rapid curing stage;
d. and when the temperature value and the humidity value in the cavity reach the manual set values of the cement test piece, stopping heating the electric heating element (6), closing the electromagnetic valve (15) in the cavity until the set curing time is reached, opening the glass door frame of the cavity, taking out the test piece mold (28) from the test piece support (5), demolding the cement test piece from the test piece mold (28), and finishing the whole rapid curing process.
8. The use method of the quick cement curing device according to claim 7, characterized in that: and a sealing strip is arranged on the edge of the inner side of the glass door frame.
9. The use method of the quick cement curing device according to claim 7, characterized in that: and c, curing the cement test piece in the step c at the temperature of 45-55 ℃, at the humidity of 85-95% and for 15-25 h.
10. The use method of the quick cement curing device according to claim 7, characterized in that: and (3) demolding the cement test piece from the test piece mold (28), and then putting the cement test piece into a water tank with the water temperature of 20 +/-1 ℃ for curing for 25-35 min.
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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN111546479A (en) * 2020-05-20 2020-08-18 李晓飞 Automatic steam curing system of control by temperature change reposition of redundant personnel
CN112476743A (en) * 2020-11-24 2021-03-12 无锡公正试验检测有限公司 Movable cement test piece water curing box with independent temperature display function
CN112497461A (en) * 2020-11-29 2021-03-16 胡家应 Final setting cement test piece curing means suitable for many maintenance environment
CN112917658A (en) * 2021-03-26 2021-06-08 长沙筑友智造科技有限公司 Steam curing device for concrete prefabricated part
CN113433159A (en) * 2021-06-23 2021-09-24 温州信达交通工程试验检测有限公司 Boiling box for cement test block

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111546479A (en) * 2020-05-20 2020-08-18 李晓飞 Automatic steam curing system of control by temperature change reposition of redundant personnel
CN112476743A (en) * 2020-11-24 2021-03-12 无锡公正试验检测有限公司 Movable cement test piece water curing box with independent temperature display function
CN112497461A (en) * 2020-11-29 2021-03-16 胡家应 Final setting cement test piece curing means suitable for many maintenance environment
CN112497461B (en) * 2020-11-29 2022-01-25 日照华诚管业有限公司 Final setting cement test piece curing means suitable for many maintenance environment
CN112917658A (en) * 2021-03-26 2021-06-08 长沙筑友智造科技有限公司 Steam curing device for concrete prefabricated part
CN113433159A (en) * 2021-06-23 2021-09-24 温州信达交通工程试验检测有限公司 Boiling box for cement test block

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