Low-temperature concrete precooling system and temperature control system

Abstract

The utility model discloses a low temperature concrete precooling system and a temperature control system, the precooling system comprises a refrigerating unit, a refrigerating stock bin, an aggregate stock bin, a mixing station and a powder stock bin, the refrigerating unit is communicated with the refrigerating stock bin, and the refrigerating unit conveys a cold source to the refrigerating stock bin; the discharging end of the aggregate bin is communicated with the feeding end of the refrigeration bin, the discharging end of the refrigeration bin is communicated with the feeding end of the mixing station, and the discharging end of the powder bin is communicated with the feeding end of the mixing station. In the pre-cooling system, cooling gas is continuously introduced into a refrigeration stock bin through a refrigeration unit, and hot gas is taken away, so that the cooling effect on the aggregate is realized, and the pre-cooling work on the mixed concrete is further realized; the temperature control system is used for measuring the material temperature of each stage in the concrete mixing work, and the intelligent control terminal is used for processing and analyzing data and controlling the adjustment of the material temperature, so that the problem that the whole batch of concrete is unqualified can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete precooling, in particular to a low-temperature concrete precooling system and a temperature control system. Background Art

[0002] During the concrete mixing process, cement hydration is an exothermic chemical reaction process, during which a certain amount of hydration heat is generated. Each gram of cement releases 502J of heat. If calculated based on a cement dosage of 300-550kg / m3, each cubic meter of concrete will release 15500-27500KJ of heat, and most of the cement hydration heat is released within 3 days. Concrete is a poor conductor of heat, especially large-volume concrete. The large amount of hydration heat generated is not easy to dissipate, and the internal temperature continues to rise. The surface of concrete dissipates heat quickly, causing a temperature gradient between the inner and outer sections of the concrete. Especially when the temperature difference between day and night is large, the temperature difference between the inside and outside is greater. The internal concrete thermal expansion and deformation produces pressure, and the external concrete cold contraction and deformation produces tension. Since the tensile strength of the concrete is low at this time, when the tensile stress inside the concrete exceeds its tensile strength, the concrete will crack. In order to prevent cracks in the concrete, the high temperature in the concrete body must be strictly limited. One way to control the low temperature of concrete is to reduce the pouring temperature of the concrete. Therefore, it is necessary to limit the temperature of concrete leaving the machine. In seasons with high temperatures, the temperature of concrete leaving the machine under natural conditions often exceeds the limit temperature required for construction. Therefore, artificial cooling measures must be taken. The existing low-temperature concrete temperature control technology is relatively backward. In order to ensure the temperature of the finished concrete to be exported, the raw materials need to be kept in a pre-cooling state for a long time. When the temperature of the finished concrete to be exported is not up to standard, it is impossible to intervene in time, resulting in the failure of the entire batch of concrete, causing unnecessary energy waste. Utility Model Content

[0003] The utility model aims to provide a low-temperature concrete precooling system and a temperature control system, which precools aggregates in a refrigeration silo by a refrigeration unit, thereby achieving a precooling effect on mixed concrete; at the same time, the temperature of materials in each link is monitored in real time by the temperature control system, and the material temperature is controlled in time, which can effectively avoid the entire batch of concrete being unqualified.

[0004] The utility model is realized by the following technical solutions:

[0005] A low-temperature concrete precooling system includes a refrigeration unit, a refrigeration silo, an aggregate silo, a mixing station and a powder silo, wherein the refrigeration unit is connected to the refrigeration silo, and the refrigeration unit delivers a cold source to the refrigeration silo; the discharge end of the aggregate silo is connected to the feed end of the refrigeration silo, the discharge end of the refrigeration silo is connected to the feed end of the mixing station, and the discharge end of the powder silo is connected to the feed end of the mixing station. In order to solve the above technical problems and achieve corresponding technical effects, in the utility model, the precooling system continuously introduces cooling gas into the refrigeration silo through the refrigeration unit and takes away the hot gas, thereby achieving a cooling effect on the aggregate, and further achieving precooling of the mixed concrete.

[0006] Further technical solutions:

[0007] A cold inlet end and a heat exhaust end are provided on the silo wall. The cold inlet end is connected to the cold air release end of the refrigeration unit, and the heat exhaust end is connected to the hot air recovery end of the refrigeration unit.

[0008] Further: it also includes a first conveyor belt, a second conveyor belt and a third conveyor belt, and the aggregate silo is connected with the refrigeration silo through the first conveyor belt;

[0009] Further: the refrigeration silo is connected to the mixing station through the second conveyor belt;

[0010] Furthermore: the powder silo is connected to the mixing station through the third conveyor belt.

[0011] Further: one end of the first conveyor belt is arranged below the discharge end of the aggregate silo, and the other end of the first conveyor belt is arranged above the feed end of the refrigeration silo;

[0012] Further: one end of the second conveyor belt is arranged below the discharge end of the refrigeration silo, and the other end of the second conveyor belt is arranged above the aggregate feed end of the mixing station;

[0013] Furthermore: one end of the third conveyor belt is arranged below the discharge end of the powder silo, and the other end of the third conveyor belt is arranged above the material distribution and feeding end of the mixing station.

[0014] Furthermore: the internal space of the aggregate silo is divided into multiple silos of different specifications, including a large stone silo, a medium stone silo, a small stone silo and a sand silo, and the discharge ends of the large stone silo, the medium stone silo, the small stone silo and the sand silo are all arranged at the discharge end of the aggregate silo.

[0015] A temperature control system adapted to the precooling system, comprising a first temperature measuring component, a second temperature measuring component, a third temperature measuring component, a fourth temperature measuring component and a fifth temperature measuring component;

[0016] The first temperature measuring element is used to detect the temperature of the aggregate silo discharge;

[0017] The second temperature measuring element is used for the temperature of the aggregate inside the aggregate silo;

[0018] The third temperature measuring element is used to detect the temperature of the powder bin discharge;

[0019] The fourth temperature measuring element is used to detect the temperature of the material inside the refrigeration silo;

[0020] The fifth temperature measuring element is used to detect the temperature of the cold inlet end and the heat exhaust end of the refrigeration silo;

[0021] The first temperature measuring component, the second temperature measuring component, the third temperature measuring component, the fourth temperature measuring component and the fifth temperature measuring component are all electrically connected to the intelligent control terminal. The temperature control system measures the material temperature at each stage of the concrete mixing process, and the intelligent control terminal processes and analyzes the data, and controls the adjustment of the material temperature, which can effectively avoid the problem of uniform distribution of qualified concrete in the entire batch.

[0022] Further: the first temperature measuring component is arranged at the discharge end of the aggregate silo, and transmits the detected temperature data to the intelligent control terminal;

[0023] Further: the second temperature measuring component is arranged inside the aggregate silo, and transmits the detected temperature data to the intelligent control terminal;

[0024] Further: the third temperature measuring component is arranged at the discharge end of the powder silo, and transmits the detected temperature data to the intelligent control terminal;

[0025] Further: the fourth temperature measuring component is arranged inside the refrigeration silo, and transmits the detected temperature data to the intelligent control terminal;

[0026] Further: the fifth temperature measuring component is arranged at the cold inlet end and the heat exhaust end of the detection refrigeration silo, and the cold inlet end and the heat exhaust end are respectively provided with the fifth temperature measuring component, and the detected temperature data is transmitted to the intelligent control terminal.

[0027] Further: two second temperature measuring components are arranged in the aggregate silo, and the two second temperature measuring components are arranged in the large stone silo and the medium stone silo respectively, for measuring the temperature of the inner core of the large stone and the medium stone;

[0028] Further: three fourth temperature measuring components are arranged inside the refrigeration bin, and the three fourth temperature measuring components

[0029] Furthermore: the temperature control system also includes a first temperature control camera and a second temperature control camera, the first temperature control camera is arranged above the feeding end of the mixing station, and the second temperature control camera is arranged below the discharging end of the mixing station.

[0030] Further: the temperature control system further includes a sixth temperature measuring component, the sixth temperature measuring component is arranged in the bucket of the transport vehicle, and the sixth temperature measuring component is electrically connected to the intelligent control terminal;

[0031] A plurality of the sixth temperature measuring components are arranged on the bottom and side panels of the transport vehicle bed.

[0032] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0033] 1. The utility model discloses a low-temperature concrete precooling system and a temperature control system. In the precooling system, cooling gas is continuously introduced into the refrigeration bin through a refrigeration unit to take away the hot gas, thereby achieving a cooling effect on aggregates and further achieving precooling of mixed concrete.

[0034] 2. The utility model provides a low-temperature concrete precooling system and temperature control system. The temperature control system measures the material temperature at each stage during the concrete mixing work, processes and analyzes the data through an intelligent control terminal, and controls the adjustment of the material temperature, which can effectively avoid the problem of uniform distribution of qualified concrete in the entire batch. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. In the drawings:

[0036] Figure 1 It is a schematic diagram of the precooling system structure;

[0037] Figure 2 This is a schematic diagram of the cross-sectional structure of the aggregate silo;

[0038] Figure 3 It is a schematic diagram of the cross-sectional structure of the refrigeration silo;

[0039] Figure 4 This is the schematic diagram of the temperature control system.

[0040] Marks and corresponding parts names in the attached drawings:

[0041] 1-refrigeration unit, 2-refrigeration silo, 3-aggregate silo, 4-mixing station, 5-powder silo, 6-transport vehicle, 101-first conveyor belt, 102-second conveyor belt, 103-third conveyor belt, 100-first temperature measuring component, 200-second temperature measuring component, 300-third temperature measuring component, 400-fourth temperature measuring component, 500-fifth temperature measuring component, 600-intelligent control terminal, 700-first temperature control camera, 800-second temperature control camera, 900-sixth temperature measuring component. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0043] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, in order to avoid confusing the present invention, well-known structures, circuits, materials or methods are not specifically described.

[0044] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. In addition, it will be appreciated by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0045] In the description of the present invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. 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. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0046] Embodiment 1:

[0047] like Figure 1 to Figure 3 As shown, the utility model is a low-temperature concrete precooling system, comprising a refrigeration unit 1, a refrigeration silo 2, an aggregate silo 3, a mixing station 4 and a powder silo 5, wherein the refrigeration unit 1 is connected to the refrigeration silo 2, and the refrigeration unit 1 delivers a cold source to the refrigeration silo 2; the discharge end of the aggregate silo 3 is connected to the feed end of the refrigeration silo 2, the discharge end of the refrigeration silo 2 is connected to the feed end of the mixing station 4, and the discharge end of the powder silo 5 is connected to the feed end of the mixing station 4. In this embodiment, cooling gas is input into the refrigeration silo 2 by the refrigeration unit 1, and the hot air flow therein is taken away, thereby reducing the temperature of the aggregate entering the refrigeration silo 2, achieving a precooling effect, and then realizing the precooling of the entire mixed concrete. Specifically, a cold inlet end and a heat exhaust end are provided on the silo wall of the refrigeration silo 2, the cold inlet end is connected to the cold air release end of the refrigeration unit 1, and the heat exhaust end is connected to the hot air recovery end of the refrigeration unit 1. When the system is working, the cold air flows from the cold inlet end arranged at the bottom into the refrigeration silo 2 to cool the aggregate, and then the gas with heat is discharged from the heat exhaust end at the top and returns to the refrigeration unit 1 for secondary cooling.

[0048] It also includes a first conveyor belt 101, a second conveyor belt 102 and a third conveyor belt 103. The aggregate silo 3 is connected to the refrigeration silo 2 through the first conveyor belt 101; the refrigeration silo 2 is connected to the mixing station 4 through the second conveyor belt 102; the powder silo 5 is connected to the mixing station 4 through the third conveyor belt 103. In this embodiment, the transfer of various materials between various devices of the precooling system is achieved by setting up multiple conveyor belts. Furthermore, one end of the first conveyor belt 101 is arranged below the discharge end of the aggregate silo 3, and the other end of the first conveyor belt 101 is arranged above the feed end of the refrigeration silo 2; one end of the second conveyor belt 102 is arranged below the discharge end of the refrigeration silo 2, and the other end of the second conveyor belt 102 is arranged above the aggregate feed end of the mixing station 4; one end of the third conveyor belt 103 is arranged below the discharge end of the powder silo 5, and the other end of the third conveyor belt 103 is arranged above the material distribution feed end of the mixing station 4.

[0049] In this embodiment, since a variety of materials of different specifications are stacked in the aggregate silo 3, the internal space of the aggregate silo 3 is divided into multiple silos of different specifications, including a large stone silo, a medium stone silo, a small stone silo and a sand silo, and the discharge ends of the large stone silo, the medium stone silo, the small stone silo and the sand silo are all arranged at the discharge end of the aggregate silo 3.

[0050] Embodiment 2:

[0051] like Figure 4As shown, this embodiment provides a temperature control system adapted to the precooling system based on Embodiment 1, including a first temperature measuring component 100, a second temperature measuring component 200, a third temperature measuring component 300, a fourth temperature measuring component 400 and a fifth temperature measuring component 500;

[0052] The first temperature measuring element 100 is used to detect the temperature of the material discharged from the aggregate silo 3;

[0053] The second temperature measuring element 200 is used to measure the temperature of the aggregate inside the aggregate silo 3;

[0054] The third temperature measuring element 300 is used to detect the temperature of the powder bin 5 discharge material;

[0055] The fourth temperature measuring element 400 is used to detect the temperature of the material inside the refrigeration silo 2;

[0056] The fifth temperature measuring element 500 is used to detect the temperature of the cold inlet end and the heat exhaust end of the refrigeration silo 2;

[0057] The first temperature measuring component 100, the second temperature measuring component 200, the third temperature measuring component 300, the fourth temperature measuring component 400 and the fifth temperature measuring component 500 are all electrically connected to the intelligent control terminal 600. In this embodiment, the temperature control system can effectively measure the material temperature at each stage in the concrete mixing process by setting a plurality of temperature measuring components, and transmit the measurement results to the intelligent control terminal 600 for data analysis and processing, and adjust and control the temperature of the material at each stage, so as to effectively achieve the pre-cooling effect of the mixed concrete, thereby effectively avoiding the problem of unqualified concrete in the entire batch and avoiding energy waste.

[0058] The specific setting position of each temperature measuring component is as follows: the first temperature measuring component 100 is set at the discharge end of the aggregate silo 3, and transmits the detected temperature data to the intelligent control terminal 600;

[0059] The second temperature measuring component 200 is disposed inside the aggregate silo 3 and transmits the detected temperature data to the intelligent control terminal 600;

[0060] The third temperature measuring component 300 is disposed at the discharge end of the powder bin 5 and transmits the detected temperature data to the intelligent control terminal 600;

[0061] The fourth temperature measuring element 400 is disposed inside the refrigeration bin 2 and transmits the detected temperature data to the intelligent control terminal 600;

[0062] The fifth temperature measuring component 500 is arranged at the cold inlet end and the heat exhaust end of the detection refrigeration silo 2, and the cold inlet end and the heat exhaust end are respectively provided with the fifth temperature measuring component 500, and the detected temperature data is transmitted to the intelligent control terminal 600.

[0063] Furthermore, in order to better measure the temperature of the material in the aggregate silo 3 and the temperature of the material in the refrigeration silo 2, two second temperature measuring components 200 are arranged in the aggregate silo 3, and the two second temperature measuring components 200 are respectively arranged in the large stone silo and the medium stone silo, for measuring the temperature of the inner core of the large stone and the medium stone;

[0064] Three fourth temperature measuring components 400 are arranged inside the refrigeration silo 2 , and the three fourth temperature measuring components 400 are arranged at the upper part, the middle part and the lower part of the refrigeration silo 2 respectively.

[0065] The temperature control system further includes a first temperature control camera 700 and a second temperature control camera 800, wherein the first temperature control camera 700 is disposed above the feed end of the mixing station 4, and the second temperature control camera 800 is disposed below the discharge end of the mixing station 4. In this embodiment, the first temperature control camera 700 and the second temperature control camera 800 can effectively monitor the feed and discharge temperatures of the mixing station 4, so that the cold temperature can be adjusted timely and effectively according to the temperature.

[0066] Furthermore, the temperature control system further includes a sixth temperature measuring component 900, which is disposed in the bucket of the transport vehicle 6 and is electrically connected to the intelligent control terminal 600; a plurality of the sixth temperature measuring components 900 are disposed on the bottom and side panels of the bucket of the transport vehicle 6. In this embodiment, the arrangement of the sixth temperature measuring component 900 can more comprehensively control the temperature of the mixed concrete, thereby more effectively realizing the pre-cooling temperature control of the concrete.

[0067] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A low-temperature concrete precooling system, characterized in that: The invention comprises a refrigeration unit (1), a refrigeration silo (2), an aggregate silo (3), a mixing station (4) and a powder silo (5), wherein the refrigeration unit (1) is connected to the refrigeration silo (2), and the refrigeration unit (1) transmits a cold source to the refrigeration silo (2); The discharge end of the aggregate silo (3) is connected to the feed end of the refrigeration silo (2), the discharge end of the refrigeration silo (2) is connected to the feed end of the mixing station (4), and the discharge end of the powder silo (5) is connected to the feed end of the mixing station (4).

2. A low-temperature concrete precooling system according to claim 1, characterized in that: The refrigeration silo (2) has a silo wall provided with a cold inlet end and a heat exhaust end, wherein the cold inlet end is connected to the cold air release end of the refrigeration unit (1), and the heat exhaust end is connected to the hot air recovery end of the refrigeration unit (1).

3. A low-temperature concrete precooling system according to claim 1, characterized in that: It also comprises a first conveyor belt (101), a second conveyor belt (102) and a third conveyor belt (103), and the aggregate silo (3) is connected to the refrigeration silo (2) via the first conveyor belt (101); The refrigeration silo (2) is connected to the mixing station (4) via the second conveyor belt (102); The powder bin (5) is connected to the mixing station (4) via the third conveyor belt (103).

4. A low-temperature concrete precooling system according to claim 3, characterized in that: One end of the first conveyor belt (101) is arranged below the discharge end of the aggregate silo (3), and the other end of the first conveyor belt (101) is arranged above the feed end of the refrigeration silo (2); One end of the second conveyor belt (102) is arranged below the discharge end of the refrigeration silo (2), and the other end of the second conveyor belt (102) is arranged above the aggregate feed end of the mixing station (4); One end of the third conveyor belt (103) is arranged below the discharge end of the powder bin (5), and the other end of the third conveyor belt (103) is arranged above the material distribution and feeding end of the mixing station (4).

5. A low-temperature concrete precooling system according to claim 1, characterized in that: The internal space of the aggregate silo (3) is divided into a plurality of silos of different specifications, including a large stone silo, a medium stone silo, a small stone silo and a sand silo, and the discharge ends of the large stone silo, the medium stone silo, the small stone silo and the sand silo are all arranged at the discharge end of the aggregate silo (3).

6. A temperature control system adapted for the low-temperature concrete precooling system according to any one of claims 1 to 5, characterized in that: It comprises a first temperature measuring component (100), a second temperature measuring component (200), a third temperature measuring component (300), a fourth temperature measuring component (400) and a fifth temperature measuring component (500); The first temperature measuring element (100) is used to detect the temperature of the material discharged from the aggregate silo (3); The second temperature measuring element (200) is used to measure the temperature of aggregate inside the aggregate silo (3); The third temperature measuring element (300) is used to detect the temperature of the material discharged from the powder bin (5); The fourth temperature measuring element (400) is used to detect the temperature of the material inside the refrigeration silo (2); The fifth temperature measuring element (500) is used to detect the temperature of the cold inlet end and the heat outlet end of the refrigeration silo (2); The first temperature measuring component (100), the second temperature measuring component (200), the third temperature measuring component (300), the fourth temperature measuring component (400) and the fifth temperature measuring component (500) are all electrically connected to the intelligent control terminal (600).

7. A temperature control system according to claim 6, characterized in that: The first temperature measuring component (100) is arranged at the discharge end of the aggregate silo (3), and transmits the detected temperature data to the intelligent control terminal (600); The second temperature measuring component (200) is arranged inside the aggregate silo (3) and transmits the detected temperature data to the intelligent control terminal (600); The third temperature measuring component (300) is arranged at the discharge end of the powder bin (5), and transmits the detected temperature data to the intelligent control terminal (600); The fourth temperature measuring component (400) is arranged inside the refrigeration silo (2) and transmits the detected temperature data to the intelligent control terminal (600); The fifth temperature measuring component (500) is arranged at the cold inlet end and the heat exhaust end of the detection refrigeration silo (2), and the cold inlet end and the heat exhaust end are respectively provided with the fifth temperature measuring component (500), and the detected temperature data is transmitted to the intelligent control terminal (600).

8. A temperature control system according to claim 7, characterized in that: Two second temperature measuring components (200) are arranged in the aggregate silo (3), and the two second temperature measuring components (200) are arranged in the large stone silo and the medium stone silo respectively, for measuring the temperature of the inner core of the large stone and the medium stone; Three fourth temperature measuring components (400) are arranged inside the refrigeration silo (2), and the three fourth temperature measuring components (400) are respectively arranged at the upper part, the middle part and the lower part of the refrigeration silo (2).

9. A temperature control system according to claim 6, characterized in that: The temperature control system further comprises a first temperature control camera (700) and a second temperature control camera (800), wherein the first temperature control camera (700) is arranged above the feeding end of the mixing station (4), and the second temperature control camera (800) is arranged below the discharging end of the mixing station (4).

10. A temperature control system according to claim 6, characterized in that: The temperature control system further comprises a sixth temperature measuring component (900), wherein the sixth temperature measuring component (900) is arranged in the cargo box of the transport vehicle (6), and the sixth temperature measuring component (900) is electrically connected to the intelligent control terminal (600); A plurality of sixth temperature measuring components (900) are arranged on the bottom and side panels of the transport vehicle (6).

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