System and method for reducing temperature of aggregate in material yard of mixing plant by using ice water spray

Abstract

The invention discloses a system for reducing the temperature of aggregate in a material yard of a mixing plant by using ice water spray, the system comprises a spraying module and a monitoring module, the spraying module is used for spraying and cooling the aggregate, and the monitoring module is used for monitoring the temperature of an aggregate pile in the material yard; the spraying module is arranged in the stock yard, the spraying module comprises a settling pond, a water pond and a spraying module, the settling pond is communicated with the water pond through a pipeline, the spraying module is arranged above the stock yard, the water pond is communicated with the spraying module through a water pipe, the monitoring module comprises an infrared temperature probe, and the infrared temperature probe is arranged at the top of the stock yard. According to the invention, ice cubes are put into the spraying water tank, so that the temperature of spraying water is greatly reduced, the temperature of aggregate can be quickly and efficiently reduced, the used spraying water is saved, and meanwhile, the recycled water of the three-stage sedimentation tank is used for cooling, so that the consumption of water resources is saved again.

Description

Technical Field

[0001] The invention belongs to the technical field of building materials, and in particular relates to a system and method for reducing the temperature of aggregates in a mixing station material yard by using ice water spray. Background Art

[0002] Concrete will emit a large amount of hydration heat during the hydration process, causing the internal temperature to rise rapidly. The uneven temperature inside and outside the concrete is prone to temperature stress, which in turn causes temperature stress cracks. When producing concrete in summer, and applying large-volume concrete, iron standard concrete and other concrete that require high mold temperature, in addition to adjusting the mix ratio and raw materials, taking cooling measures for aggregates is one of the simple and effective methods.

[0003] According to literature research, for concrete, for every degree Celsius reduction in concrete temperature, the contribution of aggregates can reach 36%, so taking reasonable cooling methods for aggregates can reduce the risk of concrete cracking. Traditional aggregate yards are mostly open-air or semi-enclosed, and aggregates are easily exposed to high temperatures, causing the surface temperature to be much higher than the air temperature. In addition, the existing cooling methods mostly use traditional circulating spraying methods to cool the surface of aggregates. Although it has a cooling effect to a certain extent, the effect is not long-lasting and it is easy to waste water resources. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art. The system of the present invention uses ice water spray to reduce the temperature of aggregates in the mixing station material yard. By putting ice cubes in the spray water pool, the temperature of the spray water is greatly reduced, and the temperature of the aggregate can be reduced faster and more efficiently, saving the spray water used. At the same time, the recycled water of the tertiary sedimentation tank is used for cooling, which further saves the consumption of water resources. The aggregate yard and the spray water pool are closed by using sandwich rock wool boards, which reduces the absorption of external heat and prolongs the cooling effect of the ice water.

[0005] In order to achieve the above invention purpose, the technical solution provided by the present invention is as follows:

[0006] A system for reducing the temperature of aggregates in a mixing plant material yard by using ice water spray, the system comprising a spray module and a monitoring module, the spray module being used for spraying aggregates to reduce the temperature, and the monitoring module being used for monitoring the temperature of the aggregate pile in the material yard; the spray module being arranged in the material yard, the spray module comprising a sedimentation tank, a water pool and a spray module, the sedimentation tank being connected to the water pool through a pipeline, the spray module being arranged above the material yard, the water pool being connected to the spray module through a water pipe, and the monitoring module comprising an infrared temperature probe, which is arranged on the top of the material yard.

[0007] Furthermore, a plurality of partition walls are arranged in the material yard, and adjacent partition walls are arranged as aggregate storage areas. A spray water room is arranged on one side of the material yard, a water pool is arranged in the spray water room, a temperature detector is arranged in the water pool, a conveyor belt is arranged above one side of the water pool, and the conveyor belt is used to put industrial ice cubes into the water pool to cool the water body. The sedimentation tank is arranged outside the material yard, and the sedimentation tank is a three-stage sedimentation tank.

[0008] Furthermore, a water precision filtration system and a valve are provided on the pipeline connecting the sedimentation tank and the water pool. The water after sedimentation in the sedimentation tank is filtered by the water precision filtration system and then enters the water pool. The insoluble matter content of the water in the water pool is ≤2000mg / L.

[0009] Furthermore, the spray module includes supporting square steel, a spray device and a transverse slide cable track. The supporting square steel is arranged on the top of the material yard. The spray device includes a nozzle and a retractable water pipe. The transverse slide cable track is respectively arranged above each aggregate stacking area. The nozzles are respectively installed on the transverse slide cable track. The water pool is arranged on the supporting square steel through a water pipe. The nozzle is connected to the water pipe arranged on the supporting square steel through the retractable water pipe. When the nozzle is working, the transverse slide cable track drives the nozzle to move back and forth.

[0010] Furthermore, the diameter of the water mist sprayed by the nozzle is 100-1000nm, and the spray volume is 20-50L / min; the transverse cable track is arranged at intervals of 1.5 meters, and the total length of the transverse cable track is not less than 80% of the length of the material yard. When the transverse cable track drives the nozzle to move and spray, the moving speed of the transverse cable track is 1-2m / min; the distance between the nozzle and the highest point of the aggregate stacking in the aggregate stacking area is not less than 1.5 meters.

[0011] Furthermore, the infrared temperature probe is arranged on the supporting square steel, an infrared temperature probe is arranged above each aggregate stacking area, and an operation panel is arranged on each partition wall. The operation panel receives the temperature measurement data of the infrared temperature probe and controls the spray module to spray. When the infrared temperature probe measures that the temperature in a part of the aggregate stacking area is greater than the set value, the operation panel turns on the spray device, and the nozzle reaches the top of the corresponding area through the transverse cable track and sprays to cool down until the temperature of the aggregate stacking area drops below the set temperature.

[0012] A method for reducing the temperature of aggregate in a mixing station material yard by using ice water spray, the method specifically comprises the following steps:

[0013] S1, prepare a system for reducing the temperature of aggregates in a mixing plant material yard by using ice water spray, the system comprising a spray module and a monitoring module, the spray module is used to spray and cool the aggregates, the monitoring module is used to monitor the temperature of the aggregate pile in the material yard; the spray module is arranged in the material yard, the spray module comprises a sedimentation tank, a water pool and a spray module, the sedimentation tank is connected to the water pool through a pipeline, the spray module is arranged above the material yard, the water pool is connected to the spray module through a water pipe, and the monitoring module comprises an infrared temperature probe, and the infrared temperature probe is arranged on the top of the material yard;

[0014] S2, when the temperature detector installed inside the pool measures that the pool temperature exceeds the set temperature, the temperature detector sounds an alarm, and industrial ice cubes are added to the pool through the conveyor belt above the pool until the pool temperature drops below the set temperature;

[0015] S3, when the infrared temperature probe measures that the temperature in part of the aggregate stacking area is greater than the set value, the operation panel controls the spraying device corresponding to the aggregate stacking area, and the nozzle reaches the top of the corresponding area through the horizontal slide rail and sprays to cool down until the temperature of the aggregate stacking area drops below the set temperature; the cooling of the aggregate is completed.

[0016] Furthermore, the temperature set by the temperature detector is not more than 5°C. When the pool temperature exceeds 5°C, the temperature detector sends out an alarm.

[0017] Based on the above technical solution, the system and method of using ice water spray to reduce the temperature of aggregates in the mixing station material yard have achieved the following technical effects through practical application:

[0018] 1. The system of the present invention utilizes ice water spray to reduce the temperature of aggregates in the material yard of a mixing station. By putting ice cubes in the spray water pool, the temperature of the spray water is greatly reduced, and the temperature of the aggregates can be reduced more quickly and efficiently, saving the spray water used. At the same time, the recycled water of the tertiary sedimentation tank is used for cooling, which again saves the consumption of water resources. The aggregate yard and the spray water pool are closed and surrounded by sandwich rock wool boards, which reduces the absorption of external heat and prolongs the cooling effect of the ice water.

[0019] 2. The system of the present invention utilizes ice water spray to reduce the temperature of aggregates in the material yard of a mixing station. The system sprays ice water to cool the entire surface of the aggregate through a horizontal cable track, thereby ensuring full coverage and uniformity of the spraying. The infrared temperature probe is used for real-time monitoring, replacing the traditional timed cycle spraying. When the temperature rises, point-to-point spray cooling is performed in time, thereby avoiding the problem of excessive spray water on the aggregate surface.

[0020] 3. The system of the present invention that utilizes ice water spray to reduce the temperature of aggregates in the material yard of a mixing station utilizes nano ice water spray. Due to its atomization effect, the first thing that comes into contact with the spray during the falling process is the air area above the aggregate yard. During this process, the air inside the material yard is also humidified, which helps to reduce the ambient temperature of coarse aggregate and fine aggregate. The micron-level ice mist is gradually infiltrated into the interior of the coarse aggregate by the fixed-point cooling arranged around the coarse aggregate, further reducing the internal temperature of the coarse aggregate, which is beneficial to the moisture content control and the secondary reduction of the overall temperature of the coarse aggregate. Therefore, the cooling process achieves a two-birds-with-one-stone effect on the temperature control inside the entire material yard while ensuring a direct cooling effect on the aggregate.

[0021] 4. The system of the present invention that utilizes ice water spray to reduce the temperature of aggregates in the material yard of a mixing station can be modified on the basis of the aggregates in a traditional mixing station. The method is simple. When producing in hot summer weather or when preparing concrete with high mold temperature requirements, the aggregates can be cooled in advance, which can reduce the temperature of concrete before leaving the factory and ensure smooth construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a system structure diagram of a system for reducing the temperature of aggregates in a mixing station material yard by using ice water spray. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and effect of the present invention clearer, the present invention is described below by specific examples. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0024] like Figure 1 The present invention discloses a system for reducing the temperature of aggregates in a mixing plant material yard by using ice water spray. The system comprises a spray module and a monitoring module. The spray module is used for spraying aggregates to reduce the temperature. The monitoring module is used for monitoring the temperature of the aggregate pile in the material yard 1. The spray module is arranged in the material yard 1. The spray module comprises a sedimentation tank 6, a water pool 4 and a spray module. The sedimentation tank 6 is connected to the water pool 4 through a pipeline. The spray module is arranged above the material yard 1. The water pool 4 is connected to the spray module through a water pipe 12. The monitoring module comprises an infrared temperature probe 15. The infrared temperature probe 15 is arranged on the top of the material yard 1.

[0025] A plurality of partition walls 17 are arranged in the material yard 1, and an aggregate storage area 2 is arranged in adjacent partition walls 17. A spray water room 3 is arranged on one side of the material yard 1, a water pool 4 is arranged in the spray water room 3, a temperature detector 8 is arranged in the water pool 4, a conveyor belt 5 is arranged above one side of the water pool 4, and the conveyor belt 5 is used to put industrial ice cubes into the water pool 4 to cool the water body. The sedimentation tank 6 is arranged outside the material yard 1, and the sedimentation tank 6 is a three-level sedimentation tank 6.

[0026] The spray water room 3 is fully enclosed by rock wool sandwich panels, and the aggregate yard and the spray water pool 4 are enclosed by sandwich rock wool panels, which reduces the absorption of external heat and prolongs the cooling effect of ice water.

[0027] The pipeline connecting the sedimentation tank 6 and the water pool 4 is provided with a water precision filtration system and a valve 7. The water after sedimentation in the sedimentation tank 6 is filtered by the water precision filtration system and then enters the water pool 4. The insoluble matter content of the water in the water pool 4 is ≤2000mg / L. The water precision filtration system can be a recoil self-cleaning filter, a self-cleaning brush filter, etc., which can filter out impurities with a particle size of 0.01mm or more in the liquid.

[0028] The spray module includes a supporting square steel 14, a spray device and a transverse sliding cable track 13. The supporting square steel 14 is arranged on the top of the material yard 1. The spray device includes a nozzle 11 and a retractable water pipe 10. The transverse sliding cable track 13 is respectively arranged above each aggregate stacking area 2. The nozzles 11 are respectively installed on the transverse sliding cable track 13. The water pool 4 is arranged on the supporting square steel 14 through the water pipe 12. The nozzles 11 are connected to the water pipes 12 arranged on the supporting square steel 14 through the retractable water pipe 10. When the nozzle 11 is working, the transverse sliding cable track 13 drives the nozzle 11 to move back and forth.

[0029] The entire aggregate surface is cooled by spraying ice water through the horizontal cable track 13, ensuring full coverage and uniformity of the spraying. Infrared temperature probe 15 is used for real-time monitoring to replace the traditional timed cycle spraying. When the temperature rises, point-to-point spray cooling is carried out in time, avoiding the problem of excessive spraying water on the aggregate surface.

[0030] The diameter of the water mist sprayed by the nozzle 11 is 100-1000nm, and the spraying volume is 20-50L / min; the transverse cable track 13 is arranged at intervals of 1.5 meters, and the total length of the transverse cable track 13 is not less than 80% of the length of the material yard 1. When the transverse cable track 13 drives the nozzle 11 to move and spray, the moving speed of the transverse cable track 13 is 1-2m / min; the distance between the nozzle 11 and the highest point of the aggregate stacking in the aggregate stacking area 2 is not less than 1.5 meters.

[0031] The infrared temperature probe 15 is arranged on the supporting square steel 14, and an infrared temperature probe 15 is arranged above each aggregate stacking area 2. An operation panel 16 is arranged on each partition wall 17. The operation panel 16 receives the temperature measurement data of the infrared temperature probe 15 and controls the spray module to spray. When the infrared temperature probe 15 measures that the temperature in a part of the aggregate stacking area 2 is greater than the set value, the operation panel 16 turns on the spray device, and the nozzle 11 reaches the top of the corresponding area through the horizontal slide rail 13 and sprays to cool down until the temperature of the aggregate stacking area 2 drops below the set temperature.

[0032] A switch button is provided at the bottom of the user operation panel, and the operation panel system is composed of spray device motion trajectory control, spray water volume control, spray time display, infrared temperature probe control, infrared temperature signal reception, and temperature monitoring display.

[0033] A method for reducing the temperature of aggregate in a mixing station material yard by using ice water spray, the method specifically comprises the following steps:

[0034] S1, prepare a system for reducing the temperature of aggregates in a mixing plant material yard by using ice water spray, the system comprising a spray module and a monitoring module, the spray module is used to spray and cool the aggregates, the monitoring module is used to monitor the temperature of the aggregate pile in the material yard 1; the spray module is arranged in the material yard 1, the spray module comprises a sedimentation tank 6, a water pool 4 and a spray module, the sedimentation tank 6 is connected to the water pool 4 through a pipeline, the spray module is arranged above the material yard 1, the water pool 4 is connected to the spray module through a water pipe 12, and the monitoring module comprises an infrared temperature probe 15, and the infrared temperature probe 15 is arranged on the top of the material yard 1;

[0035] S2, when the temperature detector 8 installed inside the water pool 4 measures that the temperature of the water pool 4 exceeds the set temperature, the temperature detector 8 sends out an alarm, and industrial ice cubes are added to the water pool 4 through the conveyor belt 5 above the water pool 4 until the temperature of the water pool 4 is about to fall below the set temperature;

[0036] S3, when the infrared temperature probe 15 measures that the temperature in a part of the aggregate stacking area 2 is greater than the set value, the operation panel 16 controls the spraying device corresponding to the aggregate stacking area 2, and the nozzle 11 reaches the top of the corresponding area through the horizontal slide rail 13 and sprays to cool down until the temperature of the aggregate stacking area 2 drops below the set temperature; the cooling of the aggregate is completed.

[0037] The temperature set by the temperature detector 8 is not more than 5°C. When the temperature of the pool 4 exceeds 5°C, the temperature detector 8 issues an alarm.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should all be covered by the scope of the technical solution for protection of the present invention.

Claims

1. A system using ice water spray to reduce the temperature of aggregates in a mixing station, characterized in that: The system includes a spray module and a monitoring module. The spray module is used to spray and cool the aggregate, and the monitoring module is used to monitor the temperature of the aggregate pile in the material yard. The spray module is arranged in the material yard, and the spray module includes a sedimentation tank, a water pool and a spray module. The sedimentation tank is connected to the water pool through a pipeline. The spray module is arranged above the material yard, and the water pool is connected to the spray module through a water pipe. The monitoring module includes an infrared temperature probe, and the infrared temperature probe is arranged on the top of the material yard.

2. A system for reducing the temperature of aggregates in a mixing station material yard by using ice water spray according to claim 1, characterized in that: A plurality of partition walls are arranged in the material yard, and adjacent partition walls are arranged as aggregate storage areas. A spray water room is arranged on one side of the material yard, a water pool is arranged in the spray water room, a temperature detector is arranged in the water pool, a conveyor belt is arranged above one side of the water pool, and the conveyor belt is used to put industrial ice cubes into the water pool to cool the water. The sedimentation tank is arranged outside the material yard, and the sedimentation tank is a three-stage sedimentation tank.

3. The system for reducing the temperature of aggregates in a mixing station material yard by using ice water spray according to claim 2 is characterized in that: A water precision filtration system and a valve are provided on the pipeline connecting the sedimentation tank and the water pool. The water after sedimentation in the sedimentation tank is filtered by the water precision filtration system and then enters the water pool. The insoluble matter content of the water in the water pool is ≤2000mg / L.

4. The system for reducing the temperature of aggregates in a mixing station material yard by using ice water spray according to claim 2 is characterized in that: The spray module includes supporting square steel, a spray device and a transverse sliding cable track. The supporting square steel is arranged on the top of the material yard. The spray device includes a nozzle and a retractable water pipe. The transverse sliding cable track is respectively arranged above each aggregate stacking area. The nozzles are respectively installed on the transverse sliding cable track. The water pool is arranged on the supporting square steel through a water pipe. The nozzles are connected to the water pipes arranged on the supporting square steel through the retractable water pipes. When the nozzle is working, the transverse sliding cable track drives the nozzle to move back and forth.

5. The system for reducing the temperature of aggregates in a mixing station material yard by using ice water spray according to claim 4 is characterized in that: The diameter of the water mist sprayed by the nozzle is 100-1000nm, and the spray volume is 20-50L / min; the transverse cable track is arranged at intervals of 1.5 meters, and the total length of the transverse cable track is not less than 80% of the length of the material yard. When the transverse cable track drives the nozzle to move and spray, the moving speed of the transverse cable track is 1-2m / min; the distance between the nozzle and the highest point of the aggregate stacking in the aggregate stacking area is not less than 1.5 meters.

6. The system for reducing the temperature of aggregates in a mixing station material yard by using ice water spray according to claim 4 is characterized in that: The infrared temperature probe is arranged on the supporting square steel, an infrared temperature probe is arranged above each aggregate stacking area, and an operation panel is arranged on each partition wall. The operation panel receives the temperature measurement data of the infrared temperature probe and controls the spray module to spray. When the infrared temperature probe measures that the temperature in part of the aggregate stacking area is greater than the set value, the operation panel turns on the spray device, and the nozzle reaches the top of the corresponding area through the horizontal slide cable track and sprays to cool down until the temperature of the aggregate stacking area drops below the set temperature.

7. A method for reducing the temperature of aggregate in a mixing station material yard by using ice water spray, characterized in that: The method specifically comprises the following steps: S1, prepare a system for reducing the temperature of aggregates in a mixing plant material yard by using ice water spray, the system comprising a spray module and a monitoring module, the spray module is used to spray and cool the aggregates, the monitoring module is used to monitor the temperature of the aggregate pile in the material yard; the spray module is arranged in the material yard, the spray module comprises a sedimentation tank, a water pool and a spray module, the sedimentation tank is connected to the water pool through a pipeline, the spray module is arranged above the material yard, the water pool is connected to the spray module through a water pipe, and the monitoring module comprises an infrared temperature probe, and the infrared temperature probe is arranged on the top of the material yard; S2, when the temperature detector installed inside the pool measures that the pool temperature exceeds the set temperature, the temperature detector sounds an alarm, and industrial ice cubes are added to the pool through the conveyor belt above the pool until the pool temperature drops below the set temperature; S3, when the infrared temperature probe measures that the temperature in part of the aggregate stacking area is greater than the set value, the operation panel controls the spraying device corresponding to the aggregate stacking area, and the nozzle reaches the top of the corresponding area through the horizontal slide rail and sprays to cool down until the temperature of the aggregate stacking area drops below the set temperature; the cooling of the aggregate is completed.

8. The method of using ice water spray to reduce the temperature of aggregate in a mixing station material yard according to claim 7, characterized in that: The temperature set by the temperature detector is not more than 5°C. When the pool temperature exceeds 5°C, the temperature detector sends out an alarm.

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