Plastic concrete water absorption measuring device

Abstract

The utility model discloses a device for measuring the water absorption rate of plastic concrete, which relates to the technical field of plastic concrete and comprises a pressure tank, a drying furnace and a scale, a driving source is arranged at the top end of the drying furnace, an output shaft of the driving source penetrates through the top surface of the drying furnace, a drying frame is fixedly connected in the drying furnace, and the scale is arranged in the drying frame. A drying assembly is arranged on the right side of the drying furnace, the drying assembly comprises a dehumidification box, a fan and a heating box, and all parts of the drying assembly are connected through pipelines; according to the plastic concrete drying furnace, by arranging the drying assembly, plastic concrete is heated more evenly in the drying process, the internal humidity of the drying furnace is controlled, the drying speed of the plastic concrete can be increased, meanwhile, plastic concrete samples can be prevented from being degraded, and the situation that water cannot be effectively discharged due to the fact that water films are formed on the surfaces of the plastic concrete samples can be prevented; therefore, the determination result of the water absorption rate is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic concrete, in particular to a device for measuring water absorption rate of plastic concrete. Background Art

[0002] As an important building material, plastic concrete is widely used in the field of civil engineering. Its water absorption is one of the key indicators to measure the performance of concrete, and is of great significance for evaluating the durability, impermeability and service life of concrete. Therefore, it is particularly important to accurately and efficiently measure the water absorption of plastic concrete.

[0003] When measuring the water absorption of plastic concrete, the following process is required: specimen preparation, drying, weighing, vacuuming and soaking, weighing again, and then the water absorption can be calculated. When drying plastic concrete, traditional drying devices usually only have heating elements for drying, and lack effective control of humidity. During the drying process, due to the influence of environmental humidity, a water film is easily formed on the surface of the concrete sample, resulting in the inability to effectively discharge moisture, thereby affecting the measurement results of the water absorption. In addition, excessive humidity may also accelerate the deterioration of the concrete sample, further affecting the accuracy of the measurement results. Utility Model Content

[0004] The utility model aims to provide a device for measuring water absorption of plastic concrete to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the utility model provides a device for measuring the water absorption rate of plastic concrete, including a pressure tank, a drying furnace and a scale. A driving source is arranged at the top of the drying furnace, and the output shaft of the driving source passes through the top surface of the drying furnace. A drying rack is fixedly connected in the drying furnace. A drying component is arranged on the right side of the drying furnace, and the drying component includes a dehumidification box, a fan and a heating box. The components of the drying component are connected by pipelines, and the upper and lower ends of the pipeline are connected to corresponding positions inside the drying furnace. The air inlet of the fan faces upward and the air outlet faces downward.

[0006] Furthermore, a dehumidification chamber is provided in the dehumidification box, a filter screen is slidably connected in the dehumidification chamber, and the dehumidification box and the filter screen are connected via a mounting component.

[0007] Furthermore, protrusions are arranged at the four corners of the dehumidification chamber, and sliding grooves corresponding to the protrusions are arranged at the four corners of the filter screen, and the filter screen can only be arranged in the dehumidification chamber so as to slide horizontally.

[0008] Furthermore, the installation component includes a latch, the filter screen is provided with a mounting hole adapted to the latch, the right side of the dehumidification box is provided with a mounting groove connected to the dehumidification chamber, and the latch passes through the mounting groove and is inserted into the mounting hole.

[0009] Furthermore, one end of a spring is fixedly connected in the installation groove, the other end of the spring is fixedly connected to the latch, the spring is sleeved around the outer wall of the latch, and the end of the latch facing the rear of the dehumidification box is chamfered.

[0010] Furthermore, the drying rack comprises a plurality of placement plates, wherein the placement plates are composed of a cross rod and a circular ring, wherein the circular ring is sleeved outside the cross rod, and the top surface of the circular ring is higher than the top surface of the long rod.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] By setting up a drying component, the plastic concrete can be heated more evenly during the drying process and the internal humidity of the drying furnace can be controlled. This can speed up the drying of the plastic concrete while preventing the deterioration of the plastic concrete sample and the formation of a water film on its surface, which can prevent the effective discharge of moisture and affect the measurement results of the water absorption rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the process position of a device for measuring water absorption of plastic concrete;

[0014] Figure 2 It is a front view of a device for measuring water absorption of plastic concrete;

[0015] Figure 3 The present invention is a schematic diagram of the structure of the installation components of a device for measuring the water absorption rate of plastic concrete.

[0016] In the figure: 1. pressure tank; 2. drying furnace; 201. observation door; 202. driving source; 203. drying rack; 3. scale; 4. drying assembly; 401. dehumidification box; 4011. dehumidification chamber; 4012. mounting slot; 4013. spring; 4014. latch; 4015. filter; 4016. mounting hole; 402. fan; 403. heating box. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 The utility model provides a technical solution: including a pressure tank 1, a drying furnace 2 and a scale 3. A driving source 202 is arranged on the top of the drying furnace 2. The output shaft of the driving source 202 passes through the top surface of the drying furnace 2. A drying rack 203 is fixedly connected in the drying furnace 2. A drying component 4 is arranged on the right side of the drying furnace 2. The drying component 4 includes a dehumidification box 401, a fan 402 and a heating box 403. The various components of the drying component 4 are connected by pipelines. The upper and lower ends of the pipeline are connected to the corresponding positions inside the drying furnace 2. The air inlet of the fan 402 faces upward and the air outlet faces downward.

[0019] By adopting the above design, when the plastic concrete needs to be dried, the plastic concrete can be placed on the drying rack 203, and then the driving source 202 is started to drive the drying rack 203 to rotate, and the fan 402 is started to circulate and send air to the lower end of the drying furnace 2. Before the air enters the drying furnace 2, it will first pass through the heating box 403, and the heating box 403 will heat the air, so that the air blown into the drying furnace 2 becomes hot air, and the hot air takes away moisture from the plastic concrete and continues to blow upwards. The rear fan 402 will draw the hot air carrying moisture from the upper end of the drying furnace 2. When drawing the hot air, the hot air needs to be filtered by the dehumidification box 401 before entering the fan 402. When passing through the dehumidification box 401, the moisture carried in the hot air will be absorbed by the dehumidification box 401, and then the dry hot air enters the fan 402, and is blown into the drying furnace 2 through the fan 402 and the heating box 403 again, so as to circulate and take away the moisture on the plastic concrete in the drying furnace 2 and dry it.

[0020] In the drying process, the driving source 202 drives the drying rack 203 to rotate, so that the plastic concrete on the drying rack 203 rotates continuously, so that the plastic concrete is heated more evenly during the drying process.

[0021] By adopting the above design, the plastic concrete is heated more evenly during the drying process, and the internal humidity of the drying furnace 2 can be controlled, which can accelerate the drying speed of the plastic concrete while preventing the deterioration of the plastic concrete sample and the formation of a water film on its surface, which makes it impossible to effectively discharge moisture, thereby affecting the measurement results of the water absorption rate.

[0022] See also Figure 1 and Figure 3Furthermore, a dehumidification chamber 4011 is provided in the dehumidification box 401, and protrusions are provided at the four corners of the dehumidification chamber 4011, and sliding grooves corresponding to the protrusions are provided at the four corners of the filter 4015. The filter 4015 can only be horizontally slidably arranged in the dehumidification chamber 4011. The dehumidification box 401 and the filter 4015 are connected by an installation component, and the installation component includes a latch 4014. The filter 4015 is provided with a mounting hole 4016 adapted to the latch 4014. The right side of the dehumidification box 401 is provided with a mounting groove 4012 connected to the dehumidification chamber 4011. The latch 4014 passes through the mounting groove 4012 and is inserted into the mounting hole 4016. A pull ring is provided on the latch 4014.

[0023] By adopting the above design, after the drying component 4 has been running for a period of time, the pull ring can be pulled out of the pin 4014 from the mounting hole 4016 to release the limit on the filter 4015, so that the filter 4015 can be pulled out from the dehumidification chamber 4011, and then the spare filter 4015 can be inserted and the pin 4014 can be inserted back, so that the filter 4015 can be quickly replaced.

[0024] For further information, see Figure 1 and Figure 3 One end of a spring 4013 is fixedly connected to the mounting groove 4012, and the other end of the spring 4013 is fixedly connected to the latch 4014. The spring 4013 is sleeved around the outer wall of the latch 4014, and the end of the latch 4014 toward the rear of the dehumidification box 401 is chamfered.

[0025] By adopting the above design, the latch 4014 will be tightly inserted into the mounting hole 4016 without human interference, thereby preventing the filter 4015 from slipping out of the dehumidification chamber 4011 due to unexpected factors such as accidental touch or vibration caused by hot air.

[0026] The spring 4013 also limits the movable radius of the latch 4014, thereby preventing the latch 4014 from being completely pulled out of the mounting slot 4012, thereby preventing the latch 4014 from being lost after being pulled out of the mounting slot 4012 due to its small size and being difficult to find.

[0027] And because of the chamfer, when inserting the filter 4015 back, there is no need to pull the pull ring to drive the pin 4014 to disengage from the installation groove 4012. The pin 4014 will automatically retreat to a position parallel to the side wall of the filter 4015 due to the chamfer. At this time, the spring 4013 will deform and accumulate elastic potential energy. Then, when the filter 4015 is fully inserted into the dehumidification chamber 4011, the position of the installation hole 4016 will be staggered with the pin 4014. At this time, the spring 4013 will convert the elastic potential energy accumulated previously into kinetic energy, driving the pin 4014 to reset, thereby making the installation of the filter 4015 more convenient.

[0028] See also Figure 2 Specifically, the drying rack 203 includes a plurality of placement plates, which are composed of a cross rod and a ring. The ring is sleeved on the outside of the cross rod, and the top surface of the ring is higher than the top surface of the long rod. The front of the drying furnace 2 is hinged with an observation door 201 through a hinge. The observation door 201 is composed of a steel frame and a borosilicate glass observation window. The observation door 201 is provided with a C-shaped asbestos insulation handrail.

[0029] By adopting the above design, the drying rack 203 can hold multiple plastic concrete samples, and because the bottom of the drying rack 203 is composed of a cross bar, the contact area between the plastic concrete sample and the dry air in the drying furnace 2 is larger, thereby making the drying efficiency of the plastic concrete sample higher.

[0030] And because the top surface of the outer ring is higher than the top surface of the cross bar, when the plastic concrete sample is placed on the cross bar, the inner wall of the ring can limit the plastic concrete sample, preventing the plastic concrete sample from falling from the cross bar due to centrifugal force during rotation because the placement position is staggered with the rotation center.

[0031] Furthermore, because the observation door 201 is composed of a steel frame and a borosilicate glass observation window, during the drying process of the plastic concrete sample, the staff can directly observe the drying progress of the plastic concrete sample on the front side of the drying furnace 2, thereby preventing the plastic concrete sample from generating tensile stress inside due to excessive drying, thereby preventing the sample from breaking. In addition, the asbestos insulating handrail can prevent the staff from being scalded by the residual heat when opening the drying furnace 2.

[0032] Working principle:

[0033] When in use, firstly, a plastic concrete sample is placed on the scale 3 for weighing, and then the data displayed by the scale 3 is recorded.

[0034] Subsequently, the plastic concrete sample is placed on the drying rack 203 in the drying furnace 2, and then the driving source 202 is started to drive the drying rack 203 to rotate, and the fan 402 is started to circulate and send air to the lower end of the interior of the drying furnace 2. Before the air enters the drying furnace 2, it will first pass through the heating box 403. The heating box 403 will heat the air, so that the air blown into the drying furnace 2 becomes hot air. The hot air takes away moisture from the plastic concrete sample and continues to blow upward. Then the fan 402 will extract the hot air carrying moisture from the upper end of the interior of the drying furnace 2. When extracting the hot air, the hot air needs to be filtered by the dehumidification box 401 before entering the fan 402. When passing through the dehumidification box 401, the moisture carried in the hot air will be absorbed by the dehumidification box 401, and then the dry hot air enters the fan 402, and is blown into the drying furnace 2 again through the fan 402 via the heating box 403, so as to circulate and take away the moisture on the plastic concrete sample in the drying furnace 2 for drying.

[0035] In the drying process, the driving source 202 drives the drying rack 203 to rotate, so that the plastic concrete on the drying rack 203 rotates continuously, so that the plastic concrete is heated more evenly during the drying process.

[0036] In this way, the plastic concrete sample is heated more evenly during the drying process, and the internal humidity of the drying furnace 2 can be controlled, which can accelerate the drying speed of the plastic concrete while preventing the plastic concrete sample from being deteriorated and preventing the formation of a water film on its surface, which would result in the inability to effectively discharge moisture and thus affect the measurement result of the water absorption rate.

[0037] After drying, the plastic concrete sample is placed in the pressure tank 1 to soak and absorb water. After waiting for about five hours, the plastic concrete sample can be taken out of the pressure tank 1, the surface moisture can be wiped dry, and then it can be placed on the scale 3 to be weighed again. At this time, the water absorption rate of the plastic concrete can be calculated according to the formula A=(M2−M1) / M1×100%, where A is the water absorption rate, M2 is the mass of the test block after absorbing water, and M1 is the mass of the test block in a dry state.

Claims

1. A device for measuring water absorption of plastic concrete, comprising a pressure tank (1), a drying furnace (2) and a scale (3), characterized in that: A driving source (202) is arranged at the top of the drying furnace (2), and an output shaft of the driving source (202) passes through the top surface of the drying furnace (2). A drying rack (203) is fixedly connected in the drying furnace (2). A drying component (4) is arranged on the right side of the drying furnace (2), and the drying component (4) comprises a dehumidification box (401), a fan (402) and a heating box (403). The various components of the drying component (4) are connected by a pipeline, and the upper and lower ends of the pipeline are connected to corresponding positions inside the drying furnace (2). The air inlet of the fan (402) faces upward, and the air outlet faces downward.

2. A device for measuring water absorption of plastic concrete according to claim 1, characterized in that: A dehumidification chamber (4011) is provided in the dehumidification box (401), a filter screen (4015) is slidably connected in the dehumidification chamber (4011), and the dehumidification box (401) and the filter screen (4015) are connected via a mounting component.

3. A device for measuring water absorption of plastic concrete according to claim 2, characterized in that: The dehumidification chamber (4011) is provided with protrusions at the four corners, and the filter screen (4015) is provided with sliding grooves corresponding to the protrusions at the four corners. The filter screen (4015) can only be horizontally slidably arranged in the dehumidification chamber (4011).

4. A device for measuring water absorption of plastic concrete as claimed in claim 3, characterized in that: The mounting component comprises a latch (4014); a mounting hole (4016) adapted to the latch (4014) is provided on the filter (4015); a mounting groove (4012) connected to the dehumidification chamber (4011) is provided on the right side of the dehumidification box (401); and the latch (4014) passes through the mounting groove (4012) and is plugged into the mounting hole (4016).

5. A device for measuring water absorption of plastic concrete as claimed in claim 4, characterized in that: One end of a spring (4013) is fixedly connected to the installation groove (4012), and the other end of the spring (4013) is fixedly connected to the latch (4014). The spring (4013) is sleeved around the outer wall of the latch (4014), and the end of the latch (4014) facing the rear of the dehumidification box (401) is chamfered.

6. A device for measuring water absorption of plastic concrete as claimed in claim 5, characterized in that: The drying rack (203) comprises a plurality of placement plates, each of which is composed of a cross rod and a circular ring. The circular ring is sleeved outside the cross rod, and the top surface of the circular ring is higher than the top surface of the long rod.

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