Melting furnace cooling and drying room heating control system and method

Abstract

A smelting furnace cooling and drying room heating control system and method thereof, relates to a control system and method thereof, the system comprises a low-temperature water pool, a smelting furnace, and a drying room heating water circulation system, the smelting furnace comprises an electric control system and a smelting system, the water inlet and outlet of the electric control system are respectively connected to the low-temperature water pool; the water outlet of the smelting system is connected to the water inlet of the drying room heating water circulation system through a pipeline C, and the water outlet of the drying room heating water circulation system is connected to the water inlet of the smelting system through pipelines D and I connected in sequence. The method is to effectively control the cooling of the smelting furnace and the heating of the drying room by switching different working modes. The present invention can consume the circulating water heat energy to a large extent through the drying room heating water circulation system, can cancel the cooling device of the smelting link, save production costs, and can also collect the high-temperature water heat energy of the smelting system to dry the EPS foam model after dipping in the drying room, thereby achieving real energy saving and consumption reduction, and has reliable performance and is easy to promote and use.

Description

Technical Field

[0001] The present invention relates to a control system and a method thereof, in particular to a smelting furnace cooling and drying room heating control system and a method thereof. Background Art

[0002] Foundry melting furnaces generally use electromagnetic induction or arc heating technology to melt metals, and their electronic control systems and melting systems require water cooling. In order to save water and reduce costs, circulating water cooling is required. The temperature difference between the water inlet and outlet of the melting system is 5℃ to 30℃ under normal working conditions. The temperature rise of the circulating water in the early and late stages of each furnace melting is different, and the water flow rate can also affect the temperature rise. Therefore, it is necessary to add a cooling device to cool the circulating water, which is costly.

[0003] In addition, with the large-scale application of EPS lost foam casting technology, the EPS foam model after dipping needs to consume energy for heating and drying. The temperature in the drying room needs to be maintained in the range of 43℃ to 48℃ during the entire process cycle. The larger the scale, the greater the energy consumption. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a smelting furnace cooling and drying room heating control system and method thereof, so as to eliminate the cooling device of the smelting system and collect the high-temperature water heat energy of the smelting system to dry the EPS foam model after dipping.

[0005] The technical solution to solve the above technical problems is: a smelting furnace cooling and drying room heating control system, including a low-temperature water pool and a smelting furnace, the smelting furnace includes an electronic control system and a smelting system, the water inlet of the electronic control system is connected to the water supply port of the low-temperature water pool through pipeline A; the water outlet of the electronic control system is injected into the low-temperature water pool through pipeline B, and also includes a drying room heating water circulation system, the water outlet of the smelting system is connected to the water inlet of the drying room heating water circulation system through pipeline C.

[0006] A further technical solution of the present invention is: the drying room heating water circulation system includes a high-temperature water pool, an intelligent temperature control device, a drying room pressurizing device, a pipeline auxiliary heating device, a drying room, a first converter valve, a second converter valve, a third converter valve, a fourth converter valve and pipelines D, E, F, G and I; the first converter valve is installed on pipeline D, and then connected to the second converter valve through a bypass pipeline, and the second converter valve is installed on pipeline C; the water outlet of the smelting system passes through pipeline C and the second converter valve, and is either connected to the water inlet of the high-temperature water pool, or is sequentially connected to the water inlet of the drying room pressurizing device through the bypass pipeline, the first converter valve, pipeline D, the third converter valve, pipeline E, the fourth converter valve and pipeline F; the water outlet of the high-temperature water pool passes through pipeline F and the fourth converter valve and is connected to the drying room. The water outlet of the drying room pressurizing device is connected to the water inlet of the drying room through the pipeline G; the water outlet of the drying room is connected to the water inlet of the smelting system through the pipeline D, the pipeline I and the fifth converter valve in sequence, or is connected to the water inlet of the high-temperature water pool through the pipeline D via the first converter valve, the bypass pipeline and the second converter valve, or is connected to the water inlet of the drying room pressurizing device through the pipeline D via the first converter valve, the third converter valve, the pipeline E, the fourth converter valve and the pipeline F in sequence; the pipeline auxiliary heating device is installed on the pipeline G between the drying room pressurizing device and the drying room; the signal output end of the intelligent temperature control device is respectively connected to the drying room pressurizing device, the pipeline auxiliary heating device, and the signal input ends of the first converter valve, the second converter valve, the third converter valve, the fourth converter valve and the fifth converter valve.

[0007] A further technical solution of the present invention is that the water outlet of the smelting system also passes through the pipeline C and sequentially flows through the second converter valve, the bypass pipeline, the first converter valve, the pipeline D, the third converter valve, the pipeline E, and the pipeline B back to the low-temperature water pool.

[0008] A further technical solution of the present invention is: the water supply port from the low-temperature water pool is also connected to the water inlet of the smelting system through a pipeline H, and a fifth flow converter valve is installed at the connection between the pipeline H and the pipeline I.

[0009] A further technical solution of the present invention is: the drying room heating water circulation system also includes a drying room ventilation device, which is installed on the top of the drying room, and the signal input end of the drying room ventilation device is connected to the signal output end of the intelligent temperature control device.

[0010] A further technical solution of the present invention is: the intelligent temperature control device includes a high-temperature water pool level sensor, a high-temperature water pool temperature sensor, a drying room temperature and humidity sensor, a drying room return water temperature sensor, and a PLC controller. The high-temperature water pool level sensor and the high-temperature water pool temperature sensor are respectively installed in the high-temperature water pool, the drying room temperature and humidity sensor is installed in the drying room, and the drying room return water temperature sensor is installed in the drying room return water pipeline; the signal output ends of the high-temperature water pool level sensor, the high-temperature water pool temperature sensor, the drying room temperature and humidity sensor, and the drying room return water temperature sensor are respectively connected to the signal input end of the PLC controller, and the signal output end of the PLC controller is respectively connected to the pipeline auxiliary heating device, the drying room pressurizing device, the drying room ventilation device and the first converter valve, the second converter valve, the third converter valve, the fourth converter valve, and the fifth converter valve. Signal input ends.

[0011] A further technical solution of the present invention is that the water outlet of the electronic control system also enters the drying room heating water circulation system through pipeline E, the third converter valve, and the fourth converter valve and is injected into the high-temperature water pool.

[0012] Another technical solution of the present invention is: a method for controlling the cooling of a smelting furnace and the heating of a drying room, which controls the cooling of a smelting furnace and the heating of a drying room by switching between different working modes. The method includes the following working modes:

[0013] Working mode 1: The melting furnace is not enabled, only the drying room is enabled:

[0014] The cooling water pump in the smelting furnace is not turned on. The high-temperature water pool temperature sensor of the intelligent temperature control device detects that the water temperature of the high-temperature water pool is lower than 45°C, and turns on the pipeline auxiliary heating device for auxiliary heating to control the temperature of the drying room between 43°C and 48°C; if the return water temperature of the drying room is higher than the temperature of the high-temperature water pool, the return water of the drying room will not flow into the high-temperature water pool, but will only circulate in the pipes of the drying room heating water circulation system to heat the drying room; if the return water temperature of the drying room is lower than the temperature of the high-temperature water pool, the return water of the drying room will flow into the high-temperature water pool; in this mode, if the temperature and humidity sensor of the drying room senses that the humidity is higher than the process setting value, the PLC controller starts the drying room ventilation device until the humidity reaches the process requirement;

[0015] Working mode 2, smelting furnace just started:

[0016] The cooling water pump in the smelting furnace is turned on, and the PLC controller of the intelligent temperature control device controls the fifth flow control valve to open, cuts the circulating water in working mode one into the smelting system of the smelting furnace, and disables the pipeline auxiliary heating device; when the drying room temperature sensor detects that the drying room temperature is higher than 48°C, the PLC controller starts the drying room ventilation device. In this mode, if the drying room temperature and humidity sensor senses that the humidity is higher than the process setting value, the PLC controller starts the drying room ventilation device until the humidity reaches the process requirement; if the drying room ventilation device is started and the drying room temperature still cannot be controlled between 43°C and 48°C, when the drying room temperature exceeds 50°C, it enters working mode three;

[0017] Working mode 3: When the smelting furnace is working normally and continuously:

[0018] When the smelting furnace is working normally and continuously, the water circulation direction at this time is: smelting system → second flow change valve → high temperature water pool → fourth flow change valve → drying room pressurizing device → drying room → fifth flow change valve → smelting system; if the drying room temperature and humidity sensor detects that the drying room temperature is higher than 48°C, the PLC controller starts the drying room ventilation device, and if it is lower than 43°C, the drying room ventilation device is turned off to control the drying room temperature between 43°C and 48°C. In this mode, if the drying room temperature and humidity sensor senses that the humidity is higher than the process setting value, the PLC controller starts the drying room ventilation device until the humidity reaches the process requirement.

[0019] A further technical solution of the present invention is: the method also includes working mode 4, high temperature warning:

[0020] Because the smelting furnace has been working continuously for too long and high-temperature evaporation occurs, the water in the high-temperature water pool is used less and less, and the temperature is getting higher and higher. Only starting the drying room ventilation device still cannot control the drying room temperature between 43℃ and 48℃. When the drying room temperature exceeds 50℃, or the liquid level in the high-temperature water pool is lower than the set value, the PLC controller adjusts the low-temperature return water of the electronic control system to flow through the pipeline E through the third converter valve and the fourth converter valve to the drying room heating water circulation system, so that the water temperature flowing into the drying room is reduced, thereby reducing the temperature in the drying room. When the drying room temperature and humidity sensor detects that the drying room temperature is lower than 43℃, the addition of low-temperature return water is stopped first. If the humidity is also lower than the process set value, the drying room ventilation device also stops ventilation and continues to work in mode three.

[0021] Due to the above structure, the smelting furnace cooling and drying room heating control system and method of the present invention have the following beneficial effects compared with the prior art:

[0022] 1. The cooling device in the smelting process can be eliminated

[0023] Since the present invention includes a low-temperature water pool, a smelting furnace, and a drying room heating water circulation system, the smelting furnace includes an electronic control system and a smelting system, wherein the water outlet of the smelting system is connected to the water inlet of the drying room heating water circulation system through a pipeline C, and the water outlet of the drying room heating water circulation system is connected to the water inlet of the smelting system through pipelines D and I connected in sequence. Therefore, the present invention connects the water outlet and the water inlet of the smelting system with the drying room heating water circulation system, and the circulating water heat energy can be greatly consumed through the drying room heating water circulation system, so that the water temperature of the smelting system can be effectively cooled, realizing the elimination of the cooling device in the smelting link, and greatly saving the production cost.

[0024] 2. The high temperature water heat energy of the smelting system can be collected to dry the EPS foam model after dipping

[0025] Since the present invention includes a low-temperature water pool, a smelting furnace, and a drying room heating water circulation system, the smelting furnace includes an electronic control system and a smelting system, wherein the water outlet of the smelting system is connected to the water inlet of the drying room heating water circulation system through a pipeline C, and the water outlet of the drying room heating water circulation system is connected to the water inlet of the smelting system through pipelines D and I connected in sequence. Therefore, the present invention connects the water outlet and the water inlet of the smelting system with the drying room heating water circulation system, so that the high-temperature water heat energy of the smelting system can be collected to dry the EPS foam model after dipping in the drying room, achieving real energy saving and consumption reduction, and bringing great economic benefits to related enterprises.

[0026] 3. Reliable performance

[0027] The drying room heating water circulation system of the present invention comprises a high-temperature water pool, an intelligent temperature control device, a drying room pressurizing device, a drying room ventilation device, a pipeline auxiliary heating device, a drying room, a first flow converter valve, a second flow converter valve, a third flow converter valve, a fourth flow converter valve, a fifth flow converter valve and pipelines D, E, F and G. Different working modes can be switched according to different needs, and the cooling of the smelting furnace and the heating of the drying room can be effectively controlled, and the performance is reliable.

[0028] The technical features of the smelting furnace cooling and drying room heating control system and method of the present invention are further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 : The principle block diagram of the smelting furnace cooling and drying room heating control system of the present invention,

[0030] Figure 2 : Schematic diagram of the heating water circulation system for the drying room described in Example 1.

[0031] The descriptions of the symbols in the figure are as follows:

[0032] 1-Cryogenic pool,

[0033] 2- Melting furnace, 21- Electronic control system, 22- Melting system,

[0034] 3- Drying room heating water circulation system,

[0035] 31- High temperature pool,

[0036] 32-intelligent temperature control device, 321-high temperature water pool level sensor, 322-high temperature water pool temperature sensor,

[0037] 323-drying room temperature and humidity sensor, 324-drying room return water temperature sensor, 325-PLC controller,

[0038] 33-Pipeline auxiliary heating device,

[0039] 34-drying room, 341-drying room pressurizing device, 342-drying room ventilation device

[0040] 35-first converter valve, 36-second converter valve, 37-third converter valve, 38-fourth converter valve, 39-fifth converter valve

[0041] 40-Bypass pipeline, 41-Pipeline A, 42-Pipeline B, 43-Pipeline C, 44-Pipeline D, 45-Pipeline E,

[0042] 46-Pipeline F, 47-Pipeline G, 48-Pipeline H, 49-Pipeline I. DETAILED DESCRIPTION

[0043] Embodiment 1:

[0044] A smelting furnace cooling and drying room heating control system comprises a low-temperature water pool 1, a smelting furnace 2, and a drying room heating water circulation system 3, wherein the low-temperature water pool 1 refers to a conventional water pool for containing water with a temperature less than or equal to 45°C, and the smelting furnace 2 is a conventional smelting furnace, comprising an electric control system 21 and a smelting system 22, wherein the water inlet of the electric control system 21 is connected to the water supply port of the low-temperature water pool 1 through a pipeline A41; the water outlet of the electric control system 21 is injected into the low-temperature water pool 1 through a pipeline B42; the water outlet of the smelting system 22 is connected to the water inlet of the drying room heating water circulation system 3 through a pipeline C43.

[0045] The drying room heating water circulation system 3 includes a high-temperature water pool 31, an intelligent temperature control device 32, a drying room pressurizing device 341, a pipeline auxiliary heating device 33, a drying room 34, a first flow converter valve 35, a second flow converter valve 36, a third flow converter valve 37, a fourth flow converter valve 38, a fifth flow converter valve 39 and pipelines D44, E45, F46, G47, H48 and I49.

[0046] Among them, the high-temperature water pool 31 refers to a conventional water pool containing water with a temperature greater than 45°C, the pipeline auxiliary heating device 33 refers to a conventional pipeline heating device such as an electric heating tube, a drying room pressurizing device 341 is installed in the drying room 34, and a drying room ventilation device 342 is installed on the top of the drying room 34, wherein the drying room pressurizing device 341 refers to a conventional water pump, and the drying room ventilation device 342 is a conventional ventilation device such as an exhaust fan; the pipeline C43 is also connected to the pipeline D44 through the bypass pipeline 40; the first flow converter valve 35 is installed at the connection between the pipeline D44 and the bypass pipeline 40, the second flow converter valve 36 is installed at the connection between the pipeline C43 and the bypass pipeline 40, the third flow converter valve 37 is installed at the connection between the pipeline D44 and the pipeline E45, and the fourth flow converter valve 38 is installed at the connection between the pipeline E45 and the pipeline F46.

[0047] The water inlet of the drying room heating water circulation system 3 refers to the water inlet of the high-temperature water pool 31 or the water inlet of the drying room pressurizing device 341; the water outlet of the smelting system 22 is connected to the water inlet of the high-temperature water pool 31 through the pipeline C43 and the second converter valve 36, or is connected to the water inlet of the high-temperature water pool 31 through the bypass pipeline 40, the first converter valve 35, the pipeline D44, the third converter valve 37, the pipeline E45, the fourth converter valve 38, and the pipeline F46 in sequence. The water outlet of the high-temperature water pool 31 is connected to the water inlet of the drying room pressurizing device 341 through the pipeline F46 and the fourth converter valve 38, and the water outlet of the drying room pressurizing device 341 The water outlet of the drying room 34 is connected to the water inlet of the smelting system 22 through the pipeline G47; the water outlet of the drying room 34 is connected to the water inlet of the smelting system 22 through the pipeline D44, the pipeline I49 and the fifth converter valve 39 in sequence, or is connected to the water inlet of the high-temperature water pool 31 through the pipeline D44 through the first converter valve 35, the bypass pipeline 40 and the second converter valve 36, or is connected to the water inlet of the drying room pressurizing device 341 through the pipeline D44 through the first converter valve 35, the third converter valve 37, the pipeline E45, the fourth converter valve 38 and the pipeline F46 in sequence; the pipeline auxiliary heating device 33 is installed on the pipeline G47 between the drying room pressurizing device 341 and the drying room 34.

[0048] The water supply from the low-temperature water pool 1 is also connected to the water inlet of the smelting system 22 through the pipeline H48. The fifth flow converter valve 39 is installed at the connection between the pipeline H48 and the pipeline I49.

[0049] The water outlet of the smelting system 22 also flows back to the low-temperature water pool through the pipeline C43 and sequentially through the second converter valve 36, the bypass pipeline 40, the first converter valve 35, the pipeline D44, the third converter valve 37, the pipeline E45, and the pipeline B42.

[0050] The water outlet of the electronic control system 21 also enters the drying room heating water circulation system 3 through the pipeline E45, the third flow conversion valve 37, and the fourth flow conversion valve 38 and is injected into the high-temperature water pool 31.

[0051] The drying room heating water circulation system 3 also includes a drying room ventilation device 342 , which is installed on the top of the drying room. The signal input end of the drying room ventilation device 342 is connected to the signal output end of the intelligent temperature control device 32 .

[0052] The intelligent temperature control device 32 includes a high-temperature water pool level sensor 321, a high-temperature water pool temperature sensor 322, a drying room temperature and humidity sensor 323, a drying room return water temperature sensor 324, and a PLC controller 325. The high-temperature water pool level sensor 321 and the high-temperature water pool temperature sensor 322 are respectively installed in the high-temperature water pool 31, the drying room temperature and humidity sensor 323 is installed in the drying room 34, and the drying room return water temperature sensor 324 is installed in the drying room return water pipeline; the signal output ends of the high-temperature water pool level sensor 321, the high-temperature water pool temperature sensor 322, the drying room temperature and humidity sensor 323, and the drying room return water temperature sensor 324 are respectively connected to the signal input end of the PLC controller 325, and the signal output end of the PLC controller 325 is respectively connected to the pipeline auxiliary heating device 33, the drying room pressurizing device 341, the drying room ventilation device 342 and the first converter valve 35, the second converter valve 36, the third converter valve 37, the fourth converter valve 38, and the fifth converter valve 39. The PLC controller is a conventional controller and controls the pipeline auxiliary heating device 33, the drying room pressurizing device 341, the drying room ventilation device 342 and each flow conversion valve through conventional software. The first flow conversion valve 35, the second flow conversion valve 36, the third flow conversion valve 37, the fourth flow conversion valve 38 and the fifth flow conversion valve 39 are all conventional three-way ball valves.

[0053] Embodiment 2:

[0054] A method for controlling the cooling of a smelting furnace and the heating of a drying room, which effectively controls the cooling of the smelting furnace and the heating of the drying room by switching between different working modes. The method includes the following four working modes:

[0055] Working mode 1: The melting furnace is not enabled, only the drying room is enabled:

[0056] The cooling water pump in the smelting furnace is not turned on, and the high-temperature water pool temperature sensor 322 of the intelligent temperature control device 32 detects that the water temperature of the high-temperature water pool 31 is lower than 45°C, and the pipeline auxiliary heating device 33 is turned on for auxiliary heating, so that the temperature of the drying room 34 is controlled between 43°C and 48°C; if the return water temperature of the drying room 34 is higher than the temperature of the high-temperature water pool 31, the return water of the drying room will not flow into the high-temperature water pool 31, but will only circulate in the pipeline of the drying room heating water circulation system 3 to heat the drying room; if the return water temperature of the drying room 34 is lower than the temperature of the high-temperature water pool 31, the return water of the drying room will flow into the high-temperature water pool 31; the process The water circulation direction of the operation mode is: when the return water temperature of the drying room is lower than the temperature of the high temperature water pool, the high temperature water pool 31→the fourth flow conversion valve 38→the drying room pressurizing device 341→the pipeline auxiliary heating device 33→the drying room 34→the first flow conversion valve 35→the second flow conversion valve 36→the high temperature water pool 31; when the return water temperature of the drying room is higher than the temperature of the high temperature water pool, the high temperature water pool 31→the fourth flow conversion valve 38→the drying room pressurizing device 341→the pipeline auxiliary heating device 33→the drying room 34→the first flow conversion valve 35→the third flow conversion valve 37→the fourth flow conversion valve 38→the drying room pressurizing device 341. In this mode, if the drying room temperature and humidity sensor 323 senses that the humidity is higher than the process setting value, the PLC controller 325 will also start the drying room ventilation device until the humidity reaches the process requirement.

[0057] Working mode 2, smelting furnace just started:

[0058] The cooling water pump in the smelting furnace is turned on, and the PLC controller 325 of the intelligent temperature control device 32 controls the fifth converter valve 39 to open, cutting the circulating water in the working mode one into the smelting system 22 of the smelting furnace 2, and deactivating the pipeline auxiliary heating device 33. At this time, the water flow circulation direction is: smelting system 22→second converter valve 36→first converter valve 35→third converter valve 37→fourth converter valve 38→drying room pressurizing device 341→drying room 34→fifth converter valve 39→smelting system 22.

[0059] When the drying room temperature sensor 321 detects that the drying room temperature is higher than 48°C, the PLC controller 325 starts the drying room ventilation device 342. If the drying room temperature and humidity sensor 323 senses that the humidity is higher than the process setting value, the PLC controller 325 will also start the drying room ventilation device until the humidity reaches the process requirement. When the drying room temperature exceeds 50°C, it enters working mode three.

[0060] Working mode 3: The smelting furnace is in normal and continuous operation

[0061] When the smelting furnace is in normal continuous operation, the water circulation direction at this time is: smelting system 22 → second flow converter valve 36 → high temperature water pool 31 → fourth flow converter valve 38 → drying room pressurizing device 341 → drying room 34 → fifth flow converter valve 39 → smelting system 22.

[0062] If the drying room temperature and humidity sensor 323 detects that the drying room temperature is higher than 48°C, the PLC controller 325 starts the drying room ventilation device 342. If it is lower than 43°C, the drying room ventilation device 342 is turned off to control the drying room temperature between 43°C and 48°C. If the drying room temperature and humidity sensor 323 senses that the humidity is higher than the process setting value, the PLC controller 325 will also start the drying room ventilation device until the humidity reaches the process requirement.

[0063] Working mode 4: high temperature warning

[0064] Because the smelting furnace has been working continuously for too long and the high temperature evaporates, the water in the high temperature water pool is used less and less, and the temperature is getting higher and higher. Only starting the drying room ventilation device still cannot control the drying room temperature between 43°C and 48°C. When the drying room temperature exceeds 50°C, or the liquid level of the high temperature water pool is lower than the set value, the PLC controller 325 adjusts the low temperature return water of the electric control system 21 to flow through the pipeline E45 through the third converter valve 37 and the fourth converter valve 38 to the drying room heating water circulation system 3, so that the water temperature flowing into the drying room is reduced to reduce the temperature in the drying room. At this time, the low temperature return water of the electric control system 21 flows as follows: electric control system 21→the third converter valve 37→the fourth converter valve 38→the drying room pressurizing device 341→the drying room 34. When the drying room temperature and humidity sensor 323 detects that the drying room temperature is lower than 43°C, the addition of low temperature return water is stopped first. If the humidity is also lower than the process setting value, the drying room ventilation device 342 also stops ventilation and continues the working mode three. At this time, it is necessary to pay attention to replenishing water to the low-temperature pool through manual intervention.

Claims

1. A method for controlling cooling of a smelting furnace and heating of a drying room, characterized in that: It controls the cooling of the smelting furnace and the heating of the drying room by switching between different working modes. The method includes the following working modes: Working mode 1: The melting furnace is not enabled, only the drying room is enabled: The cooling water pump in the smelting furnace is not turned on, and the high-temperature water pool temperature sensor (322) of the intelligent temperature control device (32) detects that the water temperature of the high-temperature water pool (31) is lower than 45°C, and the pipeline auxiliary heating device (33) is turned on for auxiliary heating, so that the temperature of the drying room (34) is controlled between 43°C and 48°C; if the return water temperature of the drying room (34) is higher than the temperature of the high-temperature water pool (31), the return water of the drying room does not flow into the high-temperature water pool (31), but only circulates in the pipeline of the drying room heating water circulation system (3) to heat the drying room; if the return water temperature of the drying room (34) is lower than the temperature of the high-temperature water pool (31), the return water of the drying room flows into the high-temperature water pool (31); in this mode, if the drying room temperature and humidity sensor (323) senses that the humidity is higher than the process set value, the PLC controller (325) starts the drying room ventilation device until the humidity reaches the process requirement; Working mode 2, smelting furnace just started: The cooling water pump in the smelting furnace is turned on, and the PLC controller (325) of the intelligent temperature control device (32) controls the fifth flow changeover valve (39) to open, so that the circulating water in the working mode 1 is cut into the smelting system (22) of the smelting furnace (2), and the pipeline auxiliary heating device (33) is disabled; when the drying room temperature and humidity sensor (323) detects that the drying room temperature is higher than 48°C, the PLC controller (325) starts the drying room ventilation device (342). In this mode, if the drying room temperature and humidity sensor (323) senses that the humidity is higher than the process setting value, the PLC controller (325) starts the drying room ventilation device until the humidity reaches the process requirement; if the drying room temperature cannot be controlled between 43°C and 48°C after starting the drying room ventilation device (342), when the drying room temperature exceeds 50°C, the working mode 3 is entered; Working mode 3: When the smelting furnace is working normally and continuously: When the smelting furnace is in normal continuous operation, the water circulation direction at this time is: smelting system (22) → second flow changeover valve (36) → high temperature water pool (31) → fourth flow changeover valve (38) → drying room pressurizing device (341) → drying room (34) → fifth flow changeover valve (39) → smelting system (22); if the drying room temperature and humidity sensor (323) detects that the drying room temperature is higher than 48°C, the PLC controller (325) starts the drying room ventilation device (342); if it is lower than 43°C, the drying room ventilation device (342) is turned off to control the drying room temperature between 43°C and 48°C; in this mode, if the drying room temperature and humidity sensor (323) senses that the humidity is higher than the process setting value, the PLC controller (325) starts the drying room ventilation device until the humidity reaches the process requirement.

2. The method for controlling the cooling of a smelting furnace and the heating of a drying room according to claim 1, characterized in that: The method also includes working mode 4, high temperature warning: Because the smelting furnace has been working continuously for too long and the high temperature evaporates, the water in the high temperature water pool is used less and less, and the temperature is getting higher and higher. Only starting the drying room ventilation device still cannot control the drying room temperature between 43°C and 48°C. When the drying room temperature exceeds 50°C, or the liquid level of the high temperature water pool is lower than the set value, the PLC controller (325) adjusts the low temperature return water of the electronic control system (21) to flow through the pipeline E (45) through the third converter valve (37) and the fourth converter valve (38) to the drying room heating water circulation system (3), so that the temperature of the water flowing into the drying room is reduced, thereby reducing the temperature in the drying room. When the drying room temperature and humidity sensor (323) detects that the drying room temperature is lower than 43°C, the addition of low temperature return water is stopped first. If the humidity is also lower than the process set value, the drying room ventilation device (342) also stops ventilation and continues to work in mode three.

3. A smelting furnace cooling and drying room heating control system, the system being applied to the smelting furnace cooling and drying room heating control method according to claim 1, comprising a low-temperature water pool (1), a smelting furnace (2), the smelting furnace comprising an electric control system (21) and a smelting system (22), the water inlet of the electric control system (21) being connected to the water supply port of the low-temperature water pool (1) through a pipeline A (41); the water outlet of the electric control system (21) being injected into the low-temperature water pool through a pipeline B (42), characterized in that: It also includes a drying room heating water circulation system (3), wherein the water outlet of the smelting system (22) is connected to the water inlet of the drying room heating water circulation system (3) via a pipeline C (43); The drying room heating water circulation system (3) comprises a high-temperature water pool (31), an intelligent temperature control device (32), a drying room pressurizing device (341), a pipeline auxiliary heating device (33), a drying room (34), a first flow converter valve (35), a second flow converter valve (36), a third flow converter valve (37), a fourth flow converter valve (38), and a pipeline D (44), a pipeline E (45), a pipeline F (46), a pipeline G (47), and a pipeline I (49); the first flow converter valve (35) is installed on the pipeline D (44), and is then connected to the second flow converter valve (36) via a bypass pipeline (40). The second flow converter valve (36) is installed on the pipeline C (43); the water outlet of the smelting system (22) passes through the pipeline C (43) and the second flow converter valve (36), and is either connected to the water inlet of the high-temperature water pool (31), or is connected to the water inlet of the drying room pressurizing device (341) in sequence through the bypass pipeline (40), the first flow converter valve (35), the pipeline D (44), the third flow converter valve (37), the pipeline E (45), the fourth flow converter valve (38), and the pipeline F (46); the water outlet of the high-temperature water pool (31) passes through the pipeline F (46) and the fourth flow converter valve (38) and is connected to the water inlet of the drying room pressurizing device (341). The water outlet of the drying room (34) is connected to the water inlet of the drying room (34) through the pipeline G (47); the water outlet of the drying room (34) is connected to the water inlet of the smelting system (22) through the pipeline D (44), the pipeline I (49), and the fifth converter valve (39) in sequence, or is connected to the water inlet of the high-temperature water pool (31) through the pipeline D (44) through the first converter valve (35), the bypass pipeline (40), and the second converter valve (36); or is connected to the water outlet of the drying room (34) through the pipeline D (44) through the first converter valve (35), the third converter valve (37), the pipeline I (49), the pipeline II (49) and the pipeline III (39) in sequence. The pipeline E (45), the fourth flow converter valve (38), and the pipeline F (46) are connected to the water inlet of the drying room pressurizing device (341); the pipeline auxiliary heating device (33) is installed on the pipeline G (47) between the drying room pressurizing device (341) and the drying room (34); and the signal output end of the intelligent temperature control device (32) is respectively connected to the signal input ends of the drying room pressurizing device (341), the pipeline auxiliary heating device (33), and the first flow converter valve (35), the second flow converter valve (36), the third flow converter valve (37), the fourth flow converter valve (38), and the fifth flow converter valve (39).

4. The smelting furnace cooling and drying room heating control system according to claim 3 is characterized in that: The water outlet of the smelting system (22) also flows back to the low-temperature water pool through the pipeline C (43) and in sequence through the second converter valve (36), the bypass pipeline (40), the first converter valve (35), the pipeline D (44), the third converter valve (37), the pipeline E (45), and the pipeline B (42).

5. The smelting furnace cooling and drying room heating control system according to claim 4 is characterized in that: The water supply port from the low-temperature water pool (1) is also connected to the water inlet of the smelting system (22) via a pipeline H (48), and a fifth flow-converting valve (39) is installed at the connection between the pipeline H (48) and the pipeline I (49).

6. The smelting furnace cooling and drying room heating control system according to claim 5 is characterized in that: The drying room heating water circulation system (3) further comprises a drying room ventilation device (342), which is installed on the top of the drying room, and the signal input end of the drying room ventilation device (342) is connected to the signal output end of the intelligent temperature control device (32).

7. The smelting furnace cooling and drying room heating control system according to claim 6 is characterized in that: The intelligent temperature control device (32) comprises a high-temperature water pool liquid level sensor (321), a high-temperature water pool temperature sensor (322), a drying room temperature and humidity sensor (323), a drying room return water temperature sensor (324), and a PLC controller (325); the high-temperature water pool liquid level sensor (321) and the high-temperature water pool temperature sensor (322) are respectively installed in the high-temperature water pool (31); the drying room temperature and humidity sensor (323) is installed in the drying room (34); and the drying room return water temperature sensor (324) is installed in the drying room return water pipeline; The signal output ends of the high-temperature water pool liquid level sensor (321), the high-temperature water pool temperature sensor (322), the drying room temperature and humidity sensor (323), and the drying room return water temperature sensor (324) are respectively connected to the signal input end of the PLC controller (325), and the signal output end of the PLC controller (325) is respectively connected to the signal input end of the pipeline auxiliary heating device (33), the drying room pressurizing device (341), the drying room ventilation device (342), and the first flow converter valve (35), the second flow converter valve (36), the third flow converter valve (37), the fourth flow converter valve (38), and the fifth flow converter valve (39).

8. The smelting furnace cooling and drying room heating control system according to claim 7, characterized in that: The water outlet of the electric control system (21) also enters the drying room heating water circulation system (3) through the pipeline E (45), the third flow conversion valve (37), and the fourth flow conversion valve (38) and is injected into the high-temperature water pool (31).

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