Cement hydration heat measuring device

Abstract

The utility model relates to the technical field of cement hydration heat measurement, and particularly discloses a cement hydration heat measurement device which comprises a measurement tank, and a feeding pipeline and a discharging pipeline are respectively arranged at the top and the bottom of the measurement tank; the thermometer is arranged on the wall surface of the measuring tank and is used for detecting the temperature in the measuring tank; the stirring mechanism is used for stirring the mixture in the measuring tank; comprising a power part arranged outside the measuring tank, a stirring shaft which is rotatably connected in the measuring tank and is driven by the power part, a plurality of first stirring blades which are vertically arranged on the stirring shaft in a staggered manner, and a plurality of second stirring blades which are arranged at the end parts of the first stirring blades and scrape along the inner wall of the measuring tank. Part of cement is easy to adhere to the inner wall of the measuring tank, so that the mixing is not uniform.

Description

Technical Field

[0001] This application relates to the field of cement hydration heat measurement technology, and specifically discloses a cement hydration heat measurement device. Background Technology

[0002] The heat of hydration of cement refers to the heat released when cement reacts with water. It is an important indicator for measuring the performance of cement, as it not only relates to the hardening process of cement but also affects the temperature change and durability of concrete structures.

[0003] The determination of cement hydration heat is an important means of evaluating cement performance. Currently, cement hydration heat can be determined by two methods: the heat of solution method and the direct method. The heat of solution method is an indirect method for determining cement hydration heat. Under constant ambient temperature conditions around the calorimeter, unhydrated cement and cement hydrated for a certain age are dissolved in a standard acid solution of a certain concentration, and the difference in heat of solution is measured as the hydration heat released by the cement during that age.

[0004] Currently, in the determination of cement hydration heat, a mixer is required to mix cement and water to ensure sufficient contact and reaction between them. However, during the mixing process, some cement tends to adhere to the inner wall of the testing vessel, resulting in uneven mixing. Furthermore, if the mixing speed is too fast, the friction between the mixing blades and the mixture will affect the temperature inside the testing vessel, thereby increasing the measurement error. On the other hand, if the mixing speed is too slow, the cement is prone to sinking due to gravity, which also easily leads to uneven mixing. Therefore, in view of these issues, the inventor has provided a cement hydration heat determination device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to solve the problem that in traditional cement hydration heat determination, some cement tends to adhere to the inner wall of the testing vessel, resulting in uneven mixing.

[0006] To achieve the above objectives, the basic solution of this utility model provides a cement hydration heat measuring device, comprising:

[0007] A measuring tank, wherein the top and bottom of the measuring tank are respectively provided with an inlet pipe and an outlet pipe;

[0008] A thermometer is installed on the wall of the measuring tank and used to detect the temperature inside the measuring tank.

[0009] A stirring mechanism for stirring a mixture inside a measuring vessel includes a power component located outside the measuring vessel, a stirring shaft rotatably connected inside the measuring vessel and driven by the power component, a plurality of first stirring blades vertically staggered on the stirring shaft, and a plurality of second stirring blades located at the ends of each of the first stirring blades and scraping along the inner wall of the measuring vessel.

[0010] The principle and effect of this basic scheme are as follows:

[0011] Compared with the prior art, this utility model, by setting a first stirring blade and a second stirring blade, enables the stirring shaft to drive the first stirring blade to rotate, so that when mixing cement and water, it also drives the second stirring blade to rotate, so that the second stirring blade rotates along the inner wall of the measuring tank, thereby preventing cement from sticking to the inner wall of the measuring tank, thus improving the mixing effect of cement and water. Furthermore, the arrangement of the first and second stirring blades means that when the first or second stirring blade is worn, it can be replaced individually, resulting in lower equipment maintenance costs.

[0012] Furthermore, the first stirring blade and the second stirring blade are hinged, and a torsion spring is provided at the connection between the first stirring blade and the second stirring blade. This arrangement provides space for the relative movement of the first stirring blade and the second stirring blade, preventing excessive collision between the second stirring blade and the cement on the inner wall of the measuring tank, which could damage the first stirring blade and the second stirring blade.

[0013] Furthermore, the first stirring blade has a connecting sleeve at its end, and the second stirring blade has a rotating shaft rotatably connected to the connecting sleeve at its end. The torsion spring is disposed inside the connecting sleeve, with its two ends connected to the connecting sleeve and the rotating shaft, respectively. This arrangement facilitates the connection between the first and second stirring blades.

[0014] Furthermore, at least two connecting sleeves are provided and symmetrically arranged vertically along the first stirring blade to improve the connection effect between the first and second stirring blades.

[0015] Furthermore, in the two vertically adjacent second stirring blades, the lowest point of the upper second stirring blade is lower than the highest point of the lower second stirring blade. This is to avoid dead corners on the inner wall of the measuring tank that the second stirring blades cannot scrape.

[0016] Furthermore, a fixed cylinder is provided at the top of the measuring tank, and a corrugated ring with varying heights is provided inside the fixed cylinder. The top of the stirring shaft extends into the fixed cylinder and is equipped with an adjusting rod, the top of which abuts against the corrugated ring. Through the cooperation between the corrugated ring and the adjusting rod, the stirring shaft, the first stirring blade, and the second stirring blade are driven to move vertically, thereby vertically stirring the cement and water. This avoids uneven mixing caused by gravity, thus improving the mixing effect of cement and water at a lower speed. At the same time, it also increases the scraping range of the second stirring blade, avoiding scraping dead zones.

[0017] Furthermore, a turntable is provided at one end of the stirring shaft located inside the fixed cylinder, and the adjusting rod is eccentrically connected to the turntable. A connecting shaft is also provided at the other end of the stirring shaft located inside the fixed cylinder. A fixed sleeve is provided inside the fixed cylinder, and a spring is provided between one end of the connecting shaft and the top surface of the fixed sleeve. This facilitates the vertical movement of the adjusting rod and stirring shaft by using a wave ring. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of a cement hydration heat measuring device according to an embodiment of this application is shown;

[0020] Figure 2 This illustration shows a schematic diagram of the interior of the measuring tank in a cement hydration heat measuring device according to an embodiment of this application;

[0021] Figure 3 This paper shows a schematic diagram of the connection between the first and second stirring blades in a cement hydration heat measuring device according to an embodiment of this application.

[0022] Figure 4 A schematic diagram of the interior of the fixed cylinder in a cement hydration heat measuring device according to an embodiment of this application is shown. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] The reference numerals in the accompanying drawings of the instruction manual include: measuring tank 1, feed pipe 2, discharge pipe 3, thermometer 4, power component 5, stirring shaft 6, first stirring blade 7, second stirring blade 8, fixed cylinder 9, rotating shaft 10, connecting sleeve 11, turntable 12, adjusting rod 13, wave ring 14, connecting shaft 15, and fixed sleeve 16.

[0025] A cement hydration heat measuring device, for example, performs... Figure 1 As shown: Figure 1 and Figure 2As shown, the stirring mechanism includes a power component 5 located at the bottom of the measuring tank 1, a stirring shaft 6 rotatably connected inside the measuring tank 1 and driven by the power component 5 through a reducer, a plurality of first stirring blades 7 vertically staggered on the stirring shaft 6, and a plurality of second stirring blades 8 located at the ends of each of the first stirring blades 7 and scraping along the inner wall of the measuring tank 1. The power component 5 is a motor. In two vertically adjacent second stirring blades 8, the lowest point of the upper second stirring blade 8 is lower than the highest point of the lower second stirring blade 8, so as to avoid dead corners on the inner wall of the measuring tank 1 where the second stirring blades 8 cannot scrape.

[0026] like Figure 3 As shown, the first stirring blade 7 is provided with a connecting sleeve 11 at its end. There are at least two connecting sleeves 11, which are arranged symmetrically along the vertical direction of the first stirring blade 7. The second stirring blade 8 is provided with a rotating shaft 10 that is rotatably connected to the connecting sleeve 11, so that the first stirring blade 7 and the second stirring blade 8 form a hinged structure, providing space for the relative movement of the first stirring blade 7 and the second stirring blade 8, and avoiding excessive collision between the second stirring blade 8 and the cement on the inner wall of the measuring tank 1, which would cause damage to the first stirring blade 7 and the second stirring blade 8. A torsion spring is provided inside the connecting sleeve 11, and the two ends of the torsion spring are connected to the connecting sleeve 11 and the rotating shaft 10, respectively.

[0027] like Figure 3 and Figure 4 As shown, a fixed cylinder 9 is provided at the top of the measuring tank 1. A wave ring 14 with varying heights is provided inside the fixed cylinder 9. The top of the stirring shaft 6 extends into the fixed cylinder 9 and is provided with a turntable 12. An adjusting rod 13 is eccentrically connected to the turntable 12. The top of the adjusting rod 13 abuts against the wave ring 14. A connecting shaft 15 is provided on the turntable 12. A fixed sleeve 16 is provided inside the fixed cylinder 9. One end of the connecting shaft 15 extends into the fixed sleeve 16 and is provided with a spring between it and the top surface of the fixed sleeve 16.

[0028] The bottom of the mixing shaft 6 is vertically splined to the output shaft of the reducer. The spring is always in a stretched state, so that the connecting shaft 15 and the adjusting shaft are subjected to an upward pulling force. When the mixing shaft 6 rotates, the adjusting rod 13 rotates along the wave ring 14, so that the mixing shaft 6, the first mixing blade 7 and the second mixing blade 8 move vertically, thereby vertically mixing cement and water to avoid uneven mixing caused by the cement being subjected to gravity. This improves the mixing effect of cement and water at a lower speed, and also increases the scraping range of the second mixing blade 8 to avoid scraping dead corners.

[0029] By setting up a first stirring blade 7 and a second stirring blade 8, the stirring shaft 6 drives the first stirring blade 7 to rotate, so that when mixing cement and water, it also drives the second stirring blade 8 to rotate, so that the second stirring blade 8 rotates along the inner wall of the measuring tank 1, thereby preventing cement from sticking to the inner wall of the measuring tank 1, thus improving the mixing effect of cement and water. Furthermore, the way the first stirring blade 7 and the second stirring blade 8 are set up means that when the first stirring blade 7 or the second stirring blade 8 is worn, it can be replaced individually, resulting in lower equipment maintenance costs.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A cement hydration heat measuring device characterized by comprising: The utility model relates to a kind of determination tank and stirring mechanism for the determination tank. The determination tank comprises: A temperature meter arranged on the wall of the determination tank and used for detecting the temperature in the determination tank; A stirring mechanism for stirring the mixture in the determination tank, which comprises a power source arranged outside the determination tank, a stirring shaft rotatably connected in the determination tank and driven by the power source, a plurality of first stirring blades vertically staggered on the stirring shaft, and a plurality of second stirring blades arranged at the end of each first stirring blade and used for scraping along the inner wall of the determination tank.

2. The apparatus for measuring the hydration heat of cement according to claim 1, wherein The first stirring blade is hinged to the second stirring blade, and a torsion spring is arranged at the connection between the first stirring blade and the second stirring blade.

3. The apparatus for measuring the hydration heat of cement according to claim 2, wherein The end of the first stirring blade is provided with a connecting sleeve, the end of the second stirring blade is provided with a rotating shaft rotatably connected to the connecting sleeve, the torsion spring is arranged in the connecting sleeve, and the two ends of the torsion spring are respectively connected to the connecting sleeve and the rotating shaft.

4. The apparatus for measuring the hydration heat of cement according to claim 3, wherein The connecting sleeve is at least two and vertically symmetrical along the first stirring blade.

5. The apparatus for measuring the hydration heat of cement according to claim 1, wherein Among the vertically adjacent second stirring blades, the lowest point of the upper second stirring blade is lower than the highest point of the lower second stirring blade.

6. The apparatus for measuring the hydration heat of cement according to claim 1, wherein A fixing cylinder is arranged at the top of the determination tank, a wave ring with ups and downs is arranged in the fixing cylinder, the top of the stirring shaft extends into the fixing cylinder and is provided with an adjusting rod, and the top of the adjusting rod abuts against the wave ring.

7. The apparatus for measuring the hydration heat of cement according to claim 6, wherein One end of the stirring shaft in the fixing cylinder is provided with a rotating disc, the adjusting rod is eccentrically connected to the rotating disc, and the one end of the stirring shaft in the fixing cylinder is also provided with a connecting shaft. A fixing sleeve is arranged in the fixing cylinder, one end of the connecting shaft extends into the fixing sleeve, and a spring is arranged between the top surface of the fixing sleeve and the one end of the connecting shaft.

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