Cement soil core sample curing device

Abstract

The invention discloses a cement soil core sample curing device, which belongs to the technical field of cement soil curing, and comprises a curing tube, which is divided into a display end, a curing chamber and an adjustment end along its own axis; a display is arranged on the side wall of the display end; a temperature and humidity monitoring sensor is arranged on the inner wall of the curing chamber; a temperature and humidity adjustment system is arranged in the adjustment end; and the temperature and humidity monitoring sensor is electrically connected to the display and the temperature and humidity adjustment system respectively. The invention has a simple structure, is light and portable, is easy to operate, and has strong practicality. It can be applied to the curing stage from the construction site to the laboratory, maintains the state of the cement soil core sample unchanged, reduces the influence of the external environment on the strength of the core sample, and improves the test accuracy.

Description

Technical Field

[0001] The invention belongs to the technical field of cement soil curing, and in particular relates to a cement soil core sample curing device. Background Art

[0002] Soft clay layers of marine, lacustrine and river deposits are widely distributed in coastal and inland areas. Due to their high compressibility, low strength and poor permeability, problems such as settlement and stability will be encountered during soft soil foundation treatment, and effective foundation treatment methods are needed.

[0003] Commonly used methods include cement-soil mixing piles. Cement-soil mixing piles use cement as a curing agent. Through a special mixing machine, soft soil and curing agent are forcibly mixed deep in the foundation. A series of physical and chemical reactions between the curing agent and the soft soil are used to harden the soft soil into a high-quality foundation with integrity, water stability and a certain strength, making the maximum use of the foundation soil. The weight of the foundation soil remains basically unchanged after reinforcement. However, cement-soil mixing piles have problems such as low tensile and shear strength, and uneven pile strength. After mixing, the strength of the cement-soil mixing piles needs to be tested. However, since most construction sites are a certain distance away from the laboratory, if the core samples drilled out are not properly stored during transportation, air dryness and temperature changes will cause the core samples to crack, and accurate strength values ​​cannot be obtained during testing. Existing cement-soil core sample maintenance devices have problems such as poor insulation and moisture retention, and the test strength value has a large error. Summary of the invention

[0004] In view of this, the present invention provides a cement soil core sample curing device, which has a simple structure, can keep the temperature and humidity of the cement soil core sample constant, maintain the core sample state unchanged, reduce the impact of the external environment on the core sample strength, and ensure the accuracy of core sample detection.

[0005] The present invention is achieved by the following technical solutions:

[0006] A cement soil core sample curing device comprises a curing tube, wherein the curing tube is divided into a display end, a curing chamber and an adjustment end along its axis; a display is arranged on the side wall of the display end; a temperature and humidity monitoring sensor is arranged on the inner wall of the curing chamber; a temperature and humidity adjustment system is arranged in the adjustment end; and the temperature and humidity monitoring sensor is electrically connected to the display and the temperature and humidity adjustment system respectively.

[0007] Compared with the prior art, the present invention has at least the following technical effects:

[0008] The curing device of the present invention is provided with a curing cylinder, which is divided into a curing bin, a display end and an adjustment end. After the cement soil core sample is taken out from the mixing pile, it is placed in the curing bin for sealed storage and transportation, which can effectively isolate the cement soil core sample from the temperature and humidity exchange of the outside world. The temperature and humidity monitoring sensor monitors the temperature and humidity conditions inside the curing barrel in real time and feeds back to the display. According to the temperature and humidity conditions inside the curing barrel, the temperature and humidity adjustment system adjusts the temperature and humidity in the curing barrel, so that the temperature and humidity of the cement soil core sample are kept constant, the core sample state is maintained unchanged, the test error caused by external conditions is reduced, the reliability of strength is guaranteed, and the accurate value of cement soil test strength is improved.

[0009] Furthermore, the curing chamber is formed by covering a fixed shell and a movable shell, the movable shell and the fixed shell are both semi-cylindrical shells, and the edge of the movable shell is rotatably connected to the fixed shell through a rotating shaft.

[0010] Furthermore, a circulation vent is provided on the side wall of the curing bin close to the adjusting end, and the temperature and humidity adjustment system adjusts the temperature in the curing bin through the circulation vent; the temperature and humidity adjustment system includes a cooling fan, a thermoelectric cooler, a condensing dehumidifier, a circulation fan and a water storage tank; the water storage tank is arranged below the circulation fan, and a humidification hole is provided on the side wall close to the circulation fan, and the water storage tank compensates the humidity of the curing bin through the humidification hole.

[0011] Furthermore, a battery is provided in the display terminal, and the battery is electrically connected to the display, the temperature and humidity monitoring sensor, the cooling fan, the thermoelectric cooler, the condensing dehumidifier, the circulating fan and the water tank respectively.

[0012] Furthermore, a charging port is provided on the end surface of the display end away from the maintenance chamber. The charging port is connected to the battery, and an external power source supplies power to the entire device through the charging port and charges the battery at the same time, so that the device can be used outdoors conveniently.

[0013] Furthermore, water-conducting cotton and an atomizing humidifier are arranged in the water storage tank.

[0014] Furthermore, a water supply port is provided on the side wall of the regulating end away from the curing bin; the water supply hole is connected to the water storage tank.

[0015] Furthermore, the curing tube also includes a handle, which is arranged on the outer wall of the tube body. The handle is arranged on the outer wall of the curing tube to facilitate the movement of the device.

[0016] Furthermore, the curing tube includes a stainless steel layer, a heat insulation layer and a rigid plastic layer from the inside to the outside. The stainless steel has high strength and good corrosion resistance, and can provide strength for the lifting device. The heat insulation layer plays a role in heat preservation. The rigid plastic layer can protect the core sample during transportation.

[0017] Furthermore, the heat insulation layer is made of PASCAL polyurethane material.

[0018] The maintenance device of the present invention has a simple structure, is easy to operate, and is highly practical. It can be applied to the maintenance stage from the construction site to the laboratory, maintains the state of the cement soil core sample unchanged, reduces the impact of the external environment on the core sample strength, and improves the accuracy of cement soil core sample strength detection; and the device has a built-in battery for convenient outdoor use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a cement soil core sample curing device of the present invention.

[0020] Figure 2 The present invention is a cross-sectional view of an adjusting end of a cement soil core sample curing device.

[0021] Figure 3 This is a detailed view of the adjustment end of a cement soil core sample curing device of the present invention.

[0022] Among them, the accompanying drawings illustrate, 1-maintenance chamber; 2-display end; 3-adjustment end; 11-fixed shell; 12-movable shell; 13-temperature and humidity monitoring sensor; 14-handle; 21-display; 22-charging port; 31-circulation fan; 32-condensing dehumidifier; 33-thermoelectric cooler; 34-cooling fan; 35-water storage tank; 36-circulation vent; 37-exhaust port; 38-water replenishment port; 351-water guide cotton; 352-atomizing humidifier; 353-humidification hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the specification. However, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, and the protection scope of the present invention is not limited thereto.

[0024] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Please refer to Figure 1 The present embodiment provides a cement soil core sample curing device, including a curing tube, which can be divided into a display end 2, a curing bin 1 and an adjustment end 3 along an axis. A temperature and humidity monitoring sensor 13 is arranged on the inner wall of the curing bin 1, a display 21 is arranged on the side wall of the display end 2, and a temperature and humidity adjustment system is arranged inside the adjustment end 3. The cement soil core sample is placed in the curing bin 1, and the temperature and humidity adjustment system adjusts and controls the temperature and humidity in the curing bin 1 to keep the temperature and humidity of the cement soil core sample constant, reduce test errors, and improve the accuracy of the cement soil test strength.

[0026] Among them, the maintenance chamber 1 is composed of a fixed shell 11 and a movable shell 12. The fixed shell 11 and the movable shell 12 are both semi-cylindrical shells. A rotating shaft is provided on the side of the fixed shell 11. The movable shell 12 is rotatably connected to the fixed shell 11 through the rotating shaft. The movable shell 12 can rotate 180° around the rotating shaft to open the maintenance chamber 1. When closed, the movable shell 12 covers the fixed shell 11 to form a relatively closed maintenance environment.

[0027] like Figure 1 As shown, a display 21 is arranged on the side wall of the display terminal 2, and the display 21 is electrically connected to the temperature and humidity monitoring sensor 13 in the curing chamber 1, receives the signal of the temperature and humidity monitoring sensor 13 and makes feedback; and a charging port 22 is provided on the end face of the display terminal 2 away from the curing chamber 1, and a battery is arranged inside the display terminal 2, and the battery can be charged through the charging port 22. The battery can be used for power supply at the construction site, and an external power supply can be used for power supply indoors, and the battery can be charged at the same time.

[0028] like Figure 2 and Figure 3As shown, the temperature and humidity regulation system includes a cooling fan 34, a thermoelectric cooler 33, a condensing dehumidifier 32, a circulating fan 31 and a water tank 35, and each instrument is electrically connected to the display 21 and the battery respectively; four circulating vents 36 are provided on the end face of the regulating end 3 close to the curing chamber 1, and the circulating fan 31, the condensing dehumidifier 32, the thermoelectric cooler 33 and the cooling fan 34 are arranged in sequence from left to right inside the regulating end 3, the water tank 35 is arranged below the circulating fan 31, the condensing dehumidifier 32, the thermoelectric cooler 33 and the cooling fan 34, spanning the entire regulating end 2, and the water tank 35 is provided with two humidification holes 353 at the position corresponding to the circulating fan 31 to compensate for the humidity of the gas flowing through the regulating end 3. The working principle of the temperature and humidity regulation system is as follows: when the temperature and humidity in the curing bin 1 are high, the gas in the curing bin 1 passes through the circulating fan 31 and the condensing dehumidifier 32 for dehumidification and cooling, and returns to the curing bin 1 through the circulating vent 36 to achieve the purpose of temperature and humidity control; when the temperature and humidity in the curing bin 1 are low, the gas in the curing bin 1 passes through the circulating fan 31 and the thermoelectric cooler 33 to increase the temperature, and the water tank 35 compensates for the humidity during the gas circulation process to achieve the purpose of temperature and humidity control.

[0029] Through the above scheme, this embodiment performs curing on the cement soil core sample according to the following curing steps:

[0030] Step 1: Set the temperature and humidity of the maintenance device.

[0031] Step 2: After the temperature and humidity displayed on the display 2 reach the set temperature and humidity, drill a core sample on site, open the movable shell 12 of the curing bin 1, and store the cement soil core sample in the curing bin 1.

[0032] Step 3: Close the movable shell 12 of the curing chamber 1 and transport the sample to the test room for curing and testing.

[0033] By maintaining and transporting the cement soil core samples through the above steps, the temperature and humidity of the cement soil core samples can be kept constant, and the cement soil core samples can be prevented from contacting the external environment, thereby ensuring that test errors are reduced and the accuracy of cement soil test strength is improved.

[0034] In this embodiment, a water-conducting cotton 351 and an atomizing humidifier 352 are arranged inside the water storage tank 35 to enhance the humidity compensation effect of the water storage tank 35 and quickly increase the humidity of the curing chamber 1.

[0035] In this example, a water replenishment port 38 is provided on the end surface of the regulating end 3 away from the curing chamber 1 , and the water replenishment port 38 is connected to the water storage tank 35 to facilitate water replenishment for the water storage tank 35 .

[0036] In this embodiment, four exhaust ports 37 are provided on the end surface of the regulating end 3 away from the curing chamber 1 to facilitate the entry and exhaust of gas.

[0037] In one embodiment, the curing tube is made of stainless steel to form a stainless steel layer. Stainless steel has high strength and can improve the overall strength of the device.

[0038] In one embodiment, if Figure 2 As shown, a heat insulation layer and a rigid plastic layer are sequentially arranged on the outside of the stainless steel layer of the curing tube. The heat insulation layer is made of PASCAL polyurethane material and plays a role in heat preservation. The rigid plastic layer can protect the core sample during transportation.

[0039] In one embodiment, in order to facilitate the movement of the device, a handle 14 is provided on the outer wall of the curing cylinder, and the handle 14 is made of stainless steel.

[0040] The various technical features in the above implementation modes can be combined arbitrarily as long as there is no conflict or contradiction between the combinations of features. However, due to space limitations, they are not described one by one.

[0041] The above descriptions are only some embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that any solutions obtained by equivalent substitutions and obvious changes made using the contents of the specification of the present invention should be included in the protection scope of the present invention.

Claims

1. A cement soil core sample curing device, characterized in that: The curing tube includes a display end, a curing chamber, and an adjustment end distributed along its axis; a display is provided on the side wall of the display end; a temperature and humidity monitoring sensor is provided on the inner wall of the curing chamber; a temperature and humidity adjustment system is provided in the adjustment end; the temperature and humidity monitoring sensor is electrically connected to the display and the temperature and humidity adjustment system respectively; The curing chamber is formed by a fixed shell and a movable shell, both the movable shell and the fixed shell are semi-cylindrical shells, and the edge of the movable shell is rotatably connected to the fixed shell through a rotating shaft; The regulating end is provided with a circulation vent on a side wall close to the curing chamber, and the temperature and humidity regulating system regulates the temperature in the curing chamber through the circulation vent; the temperature and humidity regulating system comprises a cooling fan, a thermoelectric cooler, a condensing dehumidifier, a circulation fan, and a water storage tank; the water storage tank is arranged below the circulation fan, and a humidification hole is provided on a side wall thereof close to the circulation fan, and the water storage tank compensates the humidity of the curing chamber through the humidification hole; A battery is provided in the display terminal, and the battery is electrically connected to the display, the temperature and humidity monitoring sensor, the cooling fan, the thermoelectric cooler, the condensing dehumidifier, the circulating fan and the water tank respectively; A charging port is provided on the end surface of the display terminal away from the maintenance compartment; The water storage tank is provided with water-conducting cotton and an atomizing humidifier; A water supply port is provided on the side wall of the regulating end away from the curing chamber; the water supply port is connected to the water storage tank; The curing cylinder further includes a handle, which is arranged on the outer wall of the curing bin; The curing tube comprises a stainless steel layer, a heat insulation layer and a rigid plastic layer from the inside to the outside; The thermal insulation layer is made of PASCAL polyurethane material. When the temperature and humidity in the curing chamber rise, the gas in the curing chamber passes through the condensing dehumidifier through the circulating fan for dehumidification and cooling, and then returns to the curing chamber through the circulating vent, thereby achieving the effect of temperature and humidity control. When the temperature and humidity in the curing chamber decrease, the gas in the curing chamber passes through the thermoelectric cooler through the circulating fan to increase the temperature. During the gas circulation process, the water tank compensates for the humidity, thereby achieving the goal of temperature and humidity control.

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