Intelligent quick preparation system for anti-freezing solution and use method of intelligent quick preparation system

Abstract

The invention discloses an intelligent quick preparation system for an anti-freezing solution and a use method. The intelligent quick preparation system comprises a water injection heating device, an upper-layer stirring device, a lower-layer stirring device, a different-concentration solution storage device, a sensing system and a control system, the water injection heating device is respectively communicated with the upper-layer stirring device and the lower-layer stirring device; forming a high-concentration calcium chloride solution through an upper-layer stirring device; the lower-layer stirring device is mounted right below the upper-layer stirring device, receives the high-concentration calcium chloride solution formed by the upper-layer stirring device, and performs dilution stirring to form calcium chloride solutions with different concentrations; the different-concentration liquid storage device is connected with the output end of the lower-layer stirring device; the sensing system monitors preparation parameters in real time, and the control system controls the whole preparation process according to monitoring data and proportion data of calcium chloride solutions with different concentrations. According to the invention, quick preparation of anti-freezing solutions with different concentrations can be realized, the labor intensity of workers is greatly reduced, equipment corrosion caused by solution volatilization in the stirring process is solved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of coal mine machinery, and in particular relates to an intelligent and rapid antifreeze fluid preparation system and a use method thereof. Background Art

[0002] In northern my country, temperatures can reach -50°C in winter, causing moisture-laden coal to freeze and adhere to the surfaces of the conveyor components it touches. This causes severe coal freezing and sticking, making it impossible to completely remove the frozen coal from the conveyor belt. During the return journey, the frozen layer of coal adheres to the conveyor belt. The return rollers vibrate and rub against the coal, causing a large amount of loose coal to accumulate along the conveyor belt. To ensure the safe operation of the conveyor system, a large number of personnel are required to clear the accumulated coal on-site, posing a significant risk of personal injury. Furthermore, the accumulated coal dust that falls along the conveyor belt presents a significant fire risk. To combat this problem, antifreeze is sprayed on the belt surface.

[0003] The raw material of antifreeze is anhydrous calcium chloride. The existing preparation process has the following problems: first, the solubility of antifreeze is affected by temperature during the preparation process, and the preparation amount each time is around tens of tons, resulting in a single stirring time of up to 2-3 hours, and low preparation efficiency; second, the concentration of the antifreeze after stirring requires manual sampling for concentration testing, and the concentration ratio has a certain hysteresis, which easily leads to waste of calcium chloride solution; third, because the raw material of antifreeze is anhydrous calcium chloride, it will release heat and generate volatile gases during the stirring process. These gases adhere to metal equipment, causing rust and corrosion of the equipment and reducing its service life. Summary of the Invention

[0004] In response to the problems existing in the prior art, the present invention provides an intelligent and rapid antifreeze solution preparation system and a method for using the same. The system uses a high-temperature aqueous solution to dissolve calcium chloride, thereby increasing the dissolution rate of the calcium chloride solution, reducing the stirring time of the solution, and improving the preparation efficiency of the calcium chloride solution.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] An intelligent rapid preparation system for antifreeze liquid comprises a water injection and heating device, an upper stirring device, a lower stirring device, a liquid storage device with different concentrations, a sensing system, and a control system. The water injection and heating device is respectively connected to the upper stirring device and the lower stirring device to provide the upper stirring device and the lower stirring device with water required for dissolving calcium chloride. The upper stirring device completes the primary dissolution of calcium chloride to form a high-concentration calcium chloride solution. The lower stirring device is installed directly below the upper stirring device, receives the high-concentration calcium chloride solution formed by the upper stirring device, and performs dilution and secondary stirring to form required calcium chloride solutions with different concentrations. The liquid storage device with different concentrations is connected to the output end of the lower stirring device and is used to store calcium chloride solutions with different concentrations. The sensing system monitors the water temperature, calcium chloride solution concentration, and liquid level in real time, and the control system controls the entire preparation process based on the monitoring data and the ratio data of the calcium chloride solutions with different concentrations.

[0007] Furthermore, the antifreeze intelligent rapid preparation system also includes a water pumping device and a calcium chloride solution pumping device; the water pumping device is arranged between the water injection heating device and the upper and lower stirring devices, and are connected to each other through a water injection pipeline; the calcium chloride solution pumping device is arranged between the different concentration liquid storage devices and the lower stirring device, and are connected to each other through a pipeline; an upper stirring water injection solenoid valve and a lower stirring water injection solenoid valve are respectively installed on the water injection pipeline between the water pumping device and the upper stirring device and the lower stirring device; a solenoid valve is installed on the connecting pipeline between the calcium chloride solution pumping device and the different concentration liquid storage devices; and the corresponding pipeline is controlled to be on and off by opening and closing the solenoid valve.

[0008] Furthermore, the antifreeze intelligent rapid preparation system also includes a feeding mechanism connected to the upper stirring device, which is used to transport the calcium chloride granular material into the upper stirring device.

[0009] Furthermore, the water injection and heating device includes a heating water tank and a water inlet pipe; the heating water tank is heated by an external bottom heating wire, and a water inlet solenoid valve is arranged on the water inlet pipe to control the water flow; the heating water tank heats the water in the heating water tank to a preset temperature for storage based on the solubility-temperature characteristics of calcium chloride.

[0010] Furthermore, the upper stirring device includes a lifting frame, a rotary drive device, a multi-cavity stirring tank, a spiral agitator, a sealing device and a blanking solenoid valve; the lifting frame is fixed to the ground; the rotary drive device is installed on the lifting frame; the multi-cavity stirring tank is installed on the rotary drive device and is driven to rotate by the rotary drive device; a spiral agitator is fixed to each cavity of the multi-cavity stirring tank to stir to obtain a high-concentration calcium chloride solution; each cavity has a feed port matching the port of the feeding mechanism; the sealing device includes a sealing cover, a fan and a pipeline, the sealing cover covers the multi-cavity stirring tank, and the sealing cover is provided with an opening matching the feeding mechanism and the water injection pipeline, and the gas volatilized during the stirring process is collected and discharged centrally through the fan and the pipeline; the blanking solenoid valve is installed on the blanking pipeline at the bottom outlet of each cavity of the multi-cavity stirring tank.

[0011] Furthermore, the lower stirring device includes a stirring tank, a tank bottom stirrer, a sealing cover, and a rotatable sealing cover; the stirring tank is installed directly below the upper stirring device, and receives the high-concentration calcium chloride solution transported by the blanking pipe corresponding to the bottom outlet of each cavity of the upper multi-cavity stirring tank; multiple tank bottom stirrers are arranged at intervals and installed at the bottom of the stirring tank; the sealing cover is provided with a feed port matching the port of the blanking pipe, and the feed port is sealed by the rotatable sealing cover when no feeding is required.

[0012] Furthermore, the different concentration liquid storage device includes at least two liquid storage tanks, one end of the calcium chloride solution pumping device is connected to the output port of the lower stirring device through a pipeline, and the other end is connected to the input port of each liquid storage tank through a pipeline; and a solenoid valve is respectively installed on the connecting pipeline between each liquid storage tank and the calcium chloride solution pumping device.

[0013] Furthermore, the sensing system includes a temperature sensor installed on the inner wall of the heated water storage tank, a flow meter and a pressure sensor installed on the output port of the calcium chloride solution pumping device, and a liquid level sensor and a concentration sensor installed on the inner wall of the stirring tank; the control system is a PLC control system, and the PLC control system is electrically connected to the temperature sensor, flow meter, pressure sensor, liquid level sensor, concentration sensor and rotary drive device, spiral stirrer, pool bottom stirrer, water pumping device, and calcium chloride solution pumping device through a control cabinet;

[0014] The output end of each sensor is connected to the control cabinet input module through a cable, and the control cabinet output module is connected to the opening and closing ends of each solenoid valve and the motor control end of the rotary drive device, spiral stirrer, pool bottom stirrer, water pumping device, and calcium chloride solution pumping device through a cable.

[0015] The present invention also protects a method for using the above system, comprising the following steps:

[0016] Step 1: Control the rotary drive device to rotate the feed port of each cavity of the multi-cavity mixing tank to just below the drop port of the loading mechanism, and load the material through the loading mechanism;

[0017] Step 2: Rotate the feed port of each cavity of the multi-cavity mixing tank to just below the outlet of the water injection pipeline, then turn on the water pumping device, open the upper water injection solenoid valve, and start the water injection operation;

[0018] Step 3: After the water injection is completed, turn on the spiral stirrer for stirring;

[0019] Step 4: Open the rotatable sealing cover to open the feed port, control the opening of the blanking solenoid valve corresponding to the bottom outlet of each cavity of the multi-cavity mixing tank, and control the closing of the blanking solenoid valve and the rotatable sealing cover according to the blanking amount requirement; at the same time, start the water pumping device and open the lower layer water injection solenoid valve to perform water injection operation;

[0020] Step 5: Turn on the bottom mixer of the pool to perform secondary mixing;

[0021] Step 6: After the stirring is completed, the calcium chloride solution pumping device and the solenoid valve of the corresponding concentration storage tank are turned on to transport the prepared calcium chloride solution to the storage tank for storage.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The intelligent and rapid preparation system for antifreeze provided by the present invention realizes the intelligent and rapid preparation of calcium chloride solution by means of a heated water storage tank, an upper stirring device, a lower stirring device, and a multi-concentration liquid storage tank. Compared with the existing stirring process, the system adopts a high-temperature aqueous solution for dissolution, which increases the dissolution rate of the calcium chloride solution, reduces the stirring time of the solution, and improves the preparation efficiency of the calcium chloride solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the front structure of the system provided by the present invention;

[0025] Figure 2 A schematic diagram of the side structure of the system provided by the present invention;

[0026] Figure 3 A schematic diagram of the upper and lower stirring devices of the system provided by the present invention;

[0027] Marked in the figure: 1-water inlet solenoid valve, 2-heating water storage tank, 3-lifting frame, 4-rotational drive device, 5-multi-cavity mixing tank, 6-sealing cover, 7-fan, 8-pipeline, 9-spiral agitator, 10-mixing tank, 11-bottom mixer, 12-sealing cover, 13a-first liquid storage tank, 13b-second liquid storage tank, 13c-third liquid storage tank, 14-water pumping device, 15-calcium chloride solution pumping device, 16a, 16b-upper layer stirring and water injection solenoid valve, lower layer stirring and water injection solenoid valve, 17a-first solenoid valve, 17b-second solenoid valve, 17c-third solenoid valve, 18-temperature sensor, 19-flow meter, 20-pressure sensor, 21-liquid level sensor, 22-concentration sensor, 23-feeding solenoid valve, 24-feeding mechanism, 25-rotatable sealing cover, 26-control cabinet. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] It should be noted that the "high concentration" and "different concentrations" in the high-concentration calcium chloride solution and calcium chloride solutions of different concentrations described in the article are relative concepts and do not represent specific concentration ranges. A relatively high-concentration calcium chloride solution is obtained by the upper stirring device, and the lower stirring device dilutes and stirs the solution according to the required concentration to obtain calcium chloride solutions of different concentrations.

[0030] like Figures 1 to 3 As shown, an intelligent and rapid preparation system for antifreeze liquid includes a water injection and heating device, an upper stirring device, a lower stirring device, liquid storage devices of different concentrations, a sensing system and a control system, a feeding mechanism 24, a water pumping device 14, and a calcium chloride solution pumping device 15; the water injection and heating device are respectively connected to the upper stirring device and the lower stirring device to provide the upper stirring device and the lower stirring device with water required for dissolving calcium chloride; the lower stirring device is installed directly below the upper stirring device to receive the high-concentration calcium chloride solution formed by the primary dissolution of the upper stirring device; the liquid storage devices of different concentrations are connected to the output end of the lower stirring device to store calcium chloride solutions of different concentrations; the sensing system monitors the water temperature, calcium chloride solution concentration and liquid level in real time, and the control system controls the entire preparation process according to the monitoring data and the ratio data of calcium chloride solutions of different concentrations;

[0031] The water pumping device is arranged between the water injection and heating device and the upper and lower stirring devices, and are connected to each other through a water injection pipeline; the calcium chloride solution pumping device is arranged between the different concentration liquid storage devices and the lower stirring device, and are connected to each other through a pipeline; an upper stirring water injection solenoid valve and a lower stirring water injection solenoid valve are respectively installed on the water injection pipelines between the water pumping device and the upper stirring device and the lower stirring device; a solenoid valve is installed on the connecting pipeline between the calcium chloride solution pumping device and the different concentration liquid storage devices; and the corresponding pipeline is controlled to be on and off by opening and closing the solenoid valve.

[0032] The water injection and heating device includes a heating water tank 2 and a water inlet pipeline; the heating water tank 2 is heated by an external bottom electric heating wire, and a water inlet solenoid valve 1 is configured on the water inlet pipeline to control the water flow; the heating water tank 2 heats the water in the heating water tank 2 to a preset temperature and stores it based on the solubility-temperature characteristics of calcium chloride.

[0033] The upper stirring device includes a lifting frame 3, a rotary drive device 4, a multi-cavity stirring tank 5, a spiral stirrer 9, a sealing device and a blanking solenoid valve 23; the lifting frame 3 is fixed to the ground; the rotary drive device 4 is installed on the lifting frame 3; the multi-cavity stirring tank 5 is installed on the rotary drive device 4 and is driven to rotate by the rotary drive device 4; a spiral stirrer 9 is fixed to each cavity of the multi-cavity stirring tank 5 to stir to obtain a high-concentration calcium chloride solution; each cavity has a feed port matching the port of the feeding mechanism 24; the sealing device includes a sealing cover 6, a fan 7 and a pipeline 8, the sealing cover 6 covers the multi-cavity stirring tank 5, and the sealing cover 6 is provided with an opening matching the feeding mechanism 24 and the water injection pipeline, and the gas volatilized during the stirring process is collected and discharged centrally through the fan 7 and the pipeline 8; the blanking solenoid valve 23 is installed on the blanking pipeline at the bottom outlet of each cavity.

[0034] The lower stirring device includes a stirring tank 10, a tank bottom stirrer 11, a sealing cover 12, and a rotatable sealing cover 30; the stirring tank 10 is installed directly below the upper stirring device, and receives the high-concentration calcium chloride solution transported by the blanking pipe at the bottom outlet of each cavity of the upper multi-cavity stirring tank 5; the four tank bottom stirrers 11 are arranged at intervals and installed at the bottom of the stirring tank 10; the sealing cover 12 is provided with a feed port matching the port of the blanking pipe, and the feed port is sealed by the rotatable sealing cover 25 when no feeding is required.

[0035] The different concentration liquid storage devices include a first liquid storage tank 13a, a second liquid storage tank 13b, and a third liquid storage tank 13c. One end of the calcium chloride solution pumping device 15 is connected to the output port of the lower stirring device through a pipeline, and the other end is connected to the input port of each liquid storage tank through a pipeline; and a first solenoid valve 17a, a second solenoid valve 17b, and a third solenoid valve 17c are respectively installed on the connecting pipelines between the first liquid storage tank 13a, the second liquid storage tank 13b, the third liquid storage tank 13c and the calcium chloride solution pumping device 15.

[0036] The sensing system includes a temperature sensor 18 installed on the inner wall of the heating water tank 2, a flow meter 19 and a pressure sensor 20 installed on the output port of the calcium chloride solution pumping device 15, and a liquid level sensor 21 and a concentration sensor 22 installed on the inner wall of the stirring tank 10; the control system is a PLC control system; the output ends of the temperature sensor 18, the flow meter 19, the pressure sensor 20, the liquid level sensor 21 and the concentration sensor 22 are connected to the input module of the control cabinet 26 through cables, and the output module of the control cabinet 26 is connected to the opening and closing ends of each solenoid valve and the motor control ends of the rotary drive device 4, the spiral agitator 9, the pool bottom agitator 11, the water pumping device 14, and the calcium chloride solution pumping device 15 through cables.

[0037] The present invention also protects a method for using the above system, comprising the following steps:

[0038] Step 1: Control the rotary drive device 4 to rotate the feed openings of each cavity of the multi-cavity mixing tank 5 to just below the drop opening of the loading mechanism 24, and load the material through the loading mechanism 24;

[0039] Step 2: Rotate the feed port of each cavity of the multi-cavity mixing tank 5 to just below the outlet of the water injection pipeline, then start the water pumping device 14 and open the upper water injection solenoid valve 16a to perform water injection operation;

[0040] Step 3: After the water injection is completed, the spiral stirrer 9 is turned on for stirring;

[0041] Step 4: Open the rotatable sealing cover 25 and then open the feed port, control the opening of the blanking solenoid valve 23 corresponding to the bottom outlet of each cavity of the multi-cavity mixing tank 5, and control the closing of the blanking solenoid valve 23 and the rotatable sealing cover 25 according to the blanking amount requirement; at the same time, start the water pumping device 14 and open the lower layer water injection solenoid valve 16b to perform the water injection operation;

[0042] Step 5: Turn on the pool bottom mixer 11 to perform secondary stirring;

[0043] Step 6: After the stirring is completed, the calcium chloride solution pumping device 15 and the electromagnetic valve of the corresponding concentration liquid storage tank are opened to transport the prepared calcium chloride solution to the liquid storage tank for storage.

[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made by any person skilled in the art within the technical scope disclosed in the present invention and based on the technical solution and inventive concept of the present invention shall be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. An intelligent and rapid antifreeze preparation system, characterized by: It includes a water injection and heating device, an upper stirring device, a lower stirring device, a liquid storage device of different concentrations, a sensing system and a control system; the water injection and heating device is connected to the upper stirring device and the lower stirring device respectively to provide the upper stirring device and the lower stirring device with water required to dissolve calcium chloride; The upper stirring device completes the primary dissolution of calcium chloride to form a high-concentration calcium chloride solution; The lower stirring device is installed directly below the upper stirring device, receiving the high-concentration calcium chloride solution formed by the upper stirring device, and diluting and stirring it twice to form the required calcium chloride solutions of different concentrations; the different concentration liquid storage devices are connected to the output end of the lower stirring device and are used to store calcium chloride solutions of different concentrations; the sensing system monitors the water temperature, calcium chloride solution concentration and liquid level in real time, and the control system controls the entire preparation process based on the monitoring data and the ratio data of calcium chloride solutions of different concentrations.

2. The intelligent rapid antifreeze preparation system according to claim 1, characterized in that: The antifreeze intelligent rapid preparation system also includes a water pumping device and a calcium chloride solution pumping device; the water pumping device is arranged between the water injection and heating device and the upper and lower stirring devices, and are interconnected through a water injection pipeline; the calcium chloride solution pumping device is arranged between the different concentration liquid storage devices and the lower stirring device, and are interconnected through a pipeline; an upper stirring water injection solenoid valve and a lower stirring water injection solenoid valve are respectively installed on the water injection pipelines between the water pumping device and the upper stirring device and the lower stirring device; a solenoid valve is installed on the connecting pipeline between the calcium chloride solution pumping device and the different concentration liquid storage devices; and the opening and closing of the corresponding pipelines are controlled by opening and closing the solenoid valves.

3. The intelligent rapid antifreeze preparation system according to claim 2, characterized in that: It also includes a feeding mechanism connected to the upper stirring device, which is used to transport the calcium chloride particle material into the upper stirring device.

4. The intelligent rapid antifreeze preparation system according to claim 3, characterized in that: The water injection and heating device includes a heating water tank and a water inlet pipe; the heating water tank is heated by an external bottom heating wire, and a water inlet solenoid valve is configured on the water inlet pipe to control the water flow; the heating water tank heats the water in the heating water tank to a preset temperature for storage based on the solubility-temperature characteristics of calcium chloride.

5. The intelligent rapid preparation system for antifreeze solution according to claim 4, characterized in that: The upper stirring device includes a lifting frame, a rotary drive device, a multi-cavity stirring tank, a spiral stirrer, a sealing device and a blanking solenoid valve; The lifting frame is fixed to the ground; the rotary drive device is installed on the lifting frame; the multi-cavity stirring tank is installed on the rotary drive device and is driven to rotate by the rotary drive device; a spiral stirrer is fixed to each cavity of the multi-cavity stirring tank to stir and obtain a high-concentration calcium chloride solution; each cavity has a feed port matching the port of the feeding mechanism; the sealing device includes a sealing cover, a fan and a pipeline, the sealing cover covers the multi-cavity stirring tank, and the sealing cover is provided with an opening matching the feeding mechanism and the water injection pipeline, and the gas volatilized during the stirring process is collected and discharged centrally through the fan and the pipeline; the blanking solenoid valve is installed on the blanking pipeline at the bottom outlet of each cavity of the multi-cavity stirring tank.

6. The intelligent rapid antifreeze preparation system according to claim 5, characterized in that: The lower stirring device includes a stirring tank, a tank bottom stirrer, a sealing cover, and a rotatable sealing cover; the stirring tank is installed directly below the upper stirring device, and receives the high-concentration calcium chloride solution transported by the blanking pipe corresponding to the bottom outlet of each cavity of the upper multi-cavity stirring tank; multiple tank bottom stirrers are arranged at intervals and installed at the bottom of the stirring tank; the sealing cover is provided with a feed port that matches the port of the blanking pipe, and the feed port is sealed by the rotatable sealing cover when no feeding is required.

7. The intelligent rapid antifreeze preparation system according to claim 6, characterized in that: The different concentration liquid storage devices include at least two liquid storage tanks, one end of the calcium chloride solution pumping device is connected to the output port of the lower stirring device through a pipeline, and the other end is connected to the input port of each liquid storage tank through a pipeline; and a solenoid valve is respectively installed on the connecting pipeline between each liquid storage tank and the calcium chloride solution pumping device.

8. The intelligent rapid antifreeze preparation system according to claim 7, characterized in that: The sensing system includes a temperature sensor installed on the inner wall of the heated water storage tank, a flow meter and a pressure sensor installed on the output port of the calcium chloride solution pumping device, and a liquid level sensor and a concentration sensor installed on the inner wall of the stirring tank; the control system is a PLC control system, which is electrically connected to the temperature sensor, flow meter, pressure sensor, liquid level sensor, concentration sensor and rotary drive device, spiral agitator, pool bottom agitator, water pumping device, and calcium chloride solution pumping device through a control cabinet.

9. The intelligent and rapid antifreeze preparation system according to claim 8, characterized in that: The output ends of the temperature sensor, flow meter, pressure sensor, liquid level sensor, and concentration sensor are connected to the control cabinet input module through cables, and the control cabinet output module is connected to the opening and closing ends of each solenoid valve and the motor control ends of the rotary drive device, spiral agitator, pool bottom agitator, water pumping device, and calcium chloride solution pumping device through cables.

10. The method for using the intelligent rapid antifreeze solution preparation system according to any one of claims 7 to 9, characterized in that: The following steps are involved: Step 1: Control the rotary drive device to rotate the feed port of each cavity of the multi-cavity mixing tank to just below the drop port of the loading mechanism, and load the material through the loading mechanism; Step 2: Rotate the feed port of each cavity of the multi-cavity mixing tank to just below the outlet of the water injection pipeline, then turn on the water pumping device, open the upper water injection solenoid valve, and start the water injection operation; Step 3: After the water injection is completed, turn on the spiral stirrer for stirring; Step 4: Open the rotatable sealing cover to open the feed port, control the opening of the blanking solenoid valve corresponding to the bottom outlet of each cavity of the multi-cavity mixing tank, and control the closing of the blanking solenoid valve and the rotatable sealing cover according to the blanking amount requirement; at the same time, start the water pumping device and open the lower layer water injection solenoid valve to perform water injection operation; Step 5: Turn on the bottom mixer of the pool to perform secondary mixing; Step 6: After the stirring is completed, the calcium chloride solution pumping device and the solenoid valve of the corresponding concentration storage tank are turned on to transport the prepared calcium chloride solution to the storage tank for storage.

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