A control method and system for a thermal cleaning furnace

Abstract

The present application relates to a control method and system for a thermal cleaning furnace. The method is applied to a thermal cleaning furnace provided with a feeding chamber, a pyrolysis chamber, and a discharging chamber. The pyrolysis chamber is used to accommodate N material trucks, where N is a natural number greater than 1. A guide rail for the material trucks to slide is provided in the pyrolysis chamber. One end of the guide rail passes through the feeding port of the pyrolysis chamber and extends into the feeding chamber, and the other end passes through the discharging port of the pyrolysis chamber and extends into the discharging chamber. The thermal cleaning furnace is further provided with a material pushing assembly and a material hooking assembly. The control method includes generating a feeding control instruction at a preset time interval after the temperature in the pyrolysis chamber reaches the preset temperature, controlling the material pushing assembly to push the material truck to be pyrolyzed located in the feeding chamber into the pyrolysis chamber according to the feeding control instruction, and controlling the material hooking assembly to hook out the material truck closest to the discharging chamber in the pyrolysis chamber into the discharging chamber according to the feeding control instruction; wherein the material truck to be pyrolyzed is used to hold the metal workpiece to be pyrolyzed. The present application has the effect of improving the working efficiency of the thermal cleaning furnace.

Description

Technical Field

[0001] The present application relates to the technical field of thermal cleaning furnaces, and in particular, to a control method and system for a thermal cleaning furnace. Background Art

[0002] A thermal cleaning furnace is a device used to wash chemical substances attached to metal workpieces. The thermal cleaning furnace utilizes the properties that a polymer can be pyrolyzed and carbonized when isolated from air at a temperature above 300 degrees and can be completely oxidized with a small amount of air at a temperature above 400 degrees to clean paints, coatings, etc. on the surface of metal workpieces.

[0003] In the related art, a staff member places a metal workpiece with residual chemical substances into the thermal cleaning furnace; after being processed by the thermal cleaning furnace, the staff member opens the furnace door, takes out the metal workpiece from the thermal cleaning furnace, and then processes the next batch of metal workpieces.

[0004] In view of the above related art, the inventor found that: since the furnace door is opened each time, most of the heat in the furnace dissipates, resulting in a lower temperature in the furnace when processing the next batch of metal workpieces; since it takes a certain amount of time to raise the temperature in the furnace to the preset temperature again, the working efficiency of the thermal cleaning furnace is low. Summary of the Invention

[0005] In order to improve the working efficiency of the thermal cleaning furnace, the present application provides a control method and system for a thermal cleaning furnace.

[0006] In a first aspect, the present application provides a control method for a thermal cleaning furnace, adopting the following technical solution:

[0007] A control method for a thermal cleaning furnace is applied to a thermal cleaning furnace provided with a feeding chamber, a pyrolysis chamber, and a discharging chamber. The pyrolysis chamber is used to accommodate N material trucks, where N is a natural number greater than 1; a guide rail for the material truck to slide is arranged in the pyrolysis chamber. One end of the guide rail passes through the feeding port of the pyrolysis chamber and extends into the feeding chamber, and the other end passes through the discharging port of the pyrolysis chamber and extends into the discharging chamber. The thermal cleaning furnace is further provided with a pusher assembly and a hooking assembly. The control method includes:

[0008] After the temperature in the pyrolysis chamber reaches the preset temperature, a feeding control instruction is generated at a preset time interval. According to the feeding control instruction, the pusher assembly is controlled to push the material truck to be pyrolyzed located in the feeding chamber into the pyrolysis chamber, and according to the feeding control instruction, the hooking assembly is controlled to hook out the material truck closest to the discharging chamber in the pyrolysis chamber into the discharging chamber; wherein, the material truck to be pyrolyzed is used to hold the metal workpiece to be pyrolyzed.

[0009] By adopting the above technical solution, after the temperature in the pyrolysis chamber reaches the preset temperature, a feeding control instruction is generated at preset time intervals. After the pusher component receives the feeding control instruction, it pushes the pyrolysis material truck located in the feeding chamber into the pyrolysis chamber. After the material hook component receives the feeding control instruction, it hooks out the material truck closest to the discharge chamber in the pyrolysis chamber to the discharge chamber. The pyrolysis chamber can accommodate N material trucks, enabling the thermal cleaning furnace to simultaneously pyrolyze and clean the metal workpieces to be pyrolyzed in N material trucks. The time of each material truck to be pyrolyzed in the pyrolysis chamber is the same, that is, the treatment time of the chemical substances attached to the metal workpieces in each material truck by the thermal cleaning furnace is the same. During the process of feeding and discharging, a part of the heat in the thermal cleaning furnace is dissipated into the feeding chamber and the discharge chamber. Compared with the heat in the pyrolysis chamber being directly dissipated into the air, the heat dissipation in the pyrolysis chamber is reduced, the working efficiency is improved, the energy consumption during pyrolysis is reduced, and at the same time, through continuous feeding and discharging, the working efficiency of the thermal cleaning furnace is further improved. Moreover, compared with manually moving the metal workpieces to be pyrolyzed into the thermal cleaning furnace and taking the metal workpieces out of the thermal cleaning furnace, the safety is improved.

[0010] Optionally, when all the N material trucks in the pyrolysis chamber are empty material trucks, the control method further includes:

[0011] After the temperature in the pyrolysis chamber reaches the preset temperature, N times of the feeding control instructions are sent to the pusher component and the material hook component at preset time intervals. The pusher component responds to the feeding control instruction and pushes the pyrolysis material truck in the feeding chamber into the pyrolysis chamber, and the material hook component responds to the feeding control instruction and hooks out the empty material truck closest to the discharge chamber in the pyrolysis chamber to the discharge chamber.

[0012] By adopting the above technical solution, before starting the furnace, there are N empty material trucks in the pyrolysis chamber, and these N empty material trucks are the empty material trucks left in the pyrolysis chamber after the last furnace shutdown. After starting the furnace, that is, after the temperature in the pyrolysis chamber reaches the preset temperature, the feeding control instruction is sent to the pusher component and the material hook component at preset time intervals. After the pusher component receives the feeding control instruction, it pushes the pyrolysis material truck in the pyrolysis chamber into the pyrolysis chamber. After the material hook component receives the feeding control instruction, it hooks out the empty material truck closest to the discharge chamber in the pyrolysis chamber to the discharge chamber until the N empty material trucks in the pyrolysis chamber are sequentially pushed out of the pyrolysis chamber.

[0013] Optionally, the thermal cleaning furnace further includes a first ventilation component for nitrogen replacement of the feeding chamber and the discharge chamber. Before the step of generating the feeding control instruction at preset time intervals, it further includes:

[0014] Sending a first ventilation instruction to the first ventilation component, and the first ventilation component responds to the first ventilation instruction to perform nitrogen replacement on the feeding chamber and the discharge chamber;

[0015] Obtain the oxygen content in the feeding chamber and the discharging chamber, and determine whether the oxygen content in both the feeding chamber and the discharging chamber is less than a preset oxygen content. If so, send a ventilation completion instruction to control the first ventilation component to close.

[0016] By adopting the above technical solution, before generating the feeding control instruction at a preset time interval, a first ventilation instruction is sent to the first ventilation component. After receiving the first ventilation instruction, the first ventilation component replaces the gas in the feeding chamber and the discharging chamber with nitrogen, that is, nitrogen is filled into the feeding chamber and the discharging chamber, and the gas in the feeding chamber and the discharging chamber is pumped out, so that the oxygen content in the feeding chamber and the discharging chamber is reduced; then the oxygen content in the feeding chamber and the discharging chamber is obtained, and it is determined whether the oxygen content in both the discharging chamber and the feeding chamber is less than the preset oxygen content. If the oxygen content in both the discharging chamber and the feeding chamber is less than the preset oxygen content, a ventilation completion instruction is sent to the first ventilation component to make the first ventilation component close, thereby reducing the risk of excessive oxygen content in the feeding chamber and the discharging chamber and improving the safety.

[0017] Optionally, a feeding furnace door is provided at the position near the feeding port of the pyrolysis chamber, and a discharging furnace door is provided at the position near the discharging port of the pyrolysis chamber; the pyrolysis furnace further includes a power component and a pressing component, the power component is used to drive the feeding furnace door and the discharging furnace door to open or close, and the pressing component is used to press the feeding furnace door and the discharging furnace door after the feeding furnace door and the discharging furnace door are closed;

[0018] After the step of controlling the pusher component to push the pyrolysis material vehicle located in the feeding chamber into the pyrolysis chamber according to the feeding control instruction and controlling the hooking component to hook the material vehicle closest to the discharging chamber in the pyrolysis chamber into the discharging chamber according to the feeding control instruction, the following steps are further included:

[0019] Send a door closing instruction to the power component, and the power component responds to the door closing instruction to close the feeding furnace door and the discharging furnace door;

[0020] Send a pressing instruction to the pressing component, and the pressing component responds to the pressing instruction to press the feeding furnace door and the discharging furnace door.

[0021] By adopting the above technical solution, after controlling the pusher component to push the pyrolysis material vehicle located in the feeding chamber into the pyrolysis chamber according to the feeding control instruction and controlling the hooking component to hook the material vehicle closest to the discharging chamber in the pyrolysis chamber into the discharging chamber, a door closing instruction is sent to the power component. After receiving the closing instruction, the power component closes the feeding furnace door and the discharging furnace door; then a pressing instruction is sent to the pressing component. After receiving the pressing instruction, the pressing component presses the feeding furnace door and the discharging furnace door; by controlling the pressing component to press the feeding furnace door and the discharging furnace door, the airtightness of the pyrolysis chamber is improved, thereby improving the safety.

[0022] Optionally, the thermal cleaning furnace further includes a ventilation component, which is used to extract the pyrolysis gas in the feed chamber and the discharge chamber; after the pressing component presses the feed furnace door and the discharge furnace door in response to the pressing instruction, it also includes:

[0023] sending a ventilation instruction to the ventilation component, wherein the ventilation component extracts the pyrolysis gas from the feed chamber and the discharge chamber in response to the ventilation instruction;

[0024] The ventilation time of the ventilation component is obtained, and it is determined whether the ventilation time is greater than a preset ventilation time. If so, a ventilation completion instruction is sent to control the ventilation component to close.

[0025] By adopting the above technical solution, after the clamping component clamps the feed furnace door and the discharge furnace door in response to the clamping instruction, a ventilation instruction is sent to the ventilation component. After receiving the ventilation instruction, the pyrolysis gas in the feed chamber and the discharge chamber is extracted. During the ventilation process, the ventilation time of the ventilation component is obtained to determine whether the ventilation time of the ventilation component is greater than the preset ventilation time. If the ventilation time of the ventilation component is greater than the preset ventilation time, a ventilation completion instruction is sent to the ventilation component to close the ventilation component, thereby reducing the possibility of danger caused by the pyrolysis gas being emitted into the outside air.

[0026] Optionally, the thermal cleaning furnace further includes a discharge assembly and a cooling chamber, wherein the discharge assembly is used to move the material cart in the discharge chamber to the cooling chamber; after the step of sending the ventilation completion instruction to control the ventilation assembly to close, it also includes:

[0027] Sending a movement instruction to the discharging component, the discharging component moves the material cart in the discharging chamber into the cooling chamber in response to the movement instruction;

[0028] Sending a cooling instruction to the cooling component and the ventilation component, the cooling component supplies air into the cooling chamber in response to the cooling instruction, and the ventilation component extracts air from the cooling chamber in response to the cooling instruction;

[0029] The cooling time of the material cart in the cooling chamber is obtained, and it is determined whether the cooling time is greater than the preset cooling time. If so, a cooling completion instruction is sent to control the cooling component and the ventilation component to close.

[0030] By adopting the above technical solution, after sending a ventilation instruction to close the ventilation component, a moving instruction is sent to the discharging component. After the discharging component receives the moving instruction, the trolley in the discharging chamber is moved to the cooling chamber; then a cooling instruction is sent to the cooling component and the ventilation component. After the cooling component receives the cooling instruction, air is sent into the cooling chamber, that is, air is pumped into the cooling chamber. After the ventilation component receives the ventilation instruction, the air in the cooling chamber is pumped out of the cooling chamber; then the cooling duration of the trolley in the cooling chamber is obtained, and it is judged whether the cooling duration is greater than the preset cooling duration. If the cooling duration is greater than the preset cooling duration, a cooling completion instruction is sent to control the cooling component and the ventilation component to close. Since the temperature of the trolley and the metal workpieces in the trolley is relatively high, the heat carried by the trolley and the metal workpieces in the trolley is dissipated into the air in the cooling chamber. By pumping out the air with relatively high heat in the cooling chamber, the purpose of cooling is achieved.

[0031] Optionally, the thermal cleaning furnace further includes a second air exchange component, and the second air exchange component is used for nitrogen replacement of the pyrolysis chamber; after the temperature in the pyrolysis chamber reaches the preset temperature, the following steps are further included:

[0032] Obtain the oxygen content in the pyrolysis chamber, judge whether the oxygen content in the pyrolysis chamber is greater than the oxygen content set value. If so, send a second air exchange instruction to control the second air exchange component to perform nitrogen replacement on the pyrolysis chamber.

[0033] By adopting the above technical solution, after the temperature in the pyrolysis chamber reaches the preset temperature, the oxygen content in the pyrolysis chamber is obtained, and then it is judged whether the oxygen content in the pyrolysis chamber is greater than the oxygen content. If the oxygen content in the pyrolysis chamber is greater than the oxygen content set value, a second air exchange instruction is sent to the second air exchange component. After the second air exchange component receives the second air exchange instruction, nitrogen replacement is performed on the pyrolysis chamber, that is, nitrogen is flushed into the pyrolysis chamber and the gas in the pyrolysis chamber is pumped out, thereby reducing the oxygen content in the pyrolysis chamber and reducing the possibility of explosion caused by too high oxygen content in the pyrolysis chamber.

[0034] In a second aspect, the present application provides a control system for a thermal cleaning furnace, adopting the following technical solution:

[0035] A control system for a thermal cleaning furnace, characterized in that it is applied to a thermal cleaning furnace provided with a feeding chamber, a pyrolysis chamber and a discharging chamber. The pyrolysis chamber is used to accommodate N trolleys. A guide rail for the trolley to slide is arranged in the pyrolysis chamber. One end of the guide rail passes through the feeding port of the pyrolysis chamber and extends into the feeding chamber, and the other end passes through the discharging port of the pyrolysis chamber and extends into the discharging chamber. The thermal cleaning furnace is provided with a pusher component and a hooking component; the control system includes:

[0036] A controller, connected to the pusher assembly and the material hooking assembly, is configured to generate a feeding control instruction at a preset time interval after the temperature in the pyrolysis chamber reaches a preset temperature. According to the feeding control instruction, the controller controls the pusher assembly to push the material truck to be pyrolyzed located in the feeding chamber into the pyrolysis chamber, and controls the material hooking assembly to hook out the material truck closest to the discharging chamber in the pyrolysis chamber into the discharging chamber; wherein, the material truck to be pyrolyzed is used for containing metal workpieces to be pyrolyzed.

[0037] In a third aspect, the present application provides a computer device, adopting the following technical solution:

[0038] A computer device includes: a memory and a processor. A computer program that can run on the processor is stored on the memory. When the processor executes the computer program, the method described in any one of the first aspect is implemented.

[0039] In a fourth aspect, the present application provides a computer-readable storage medium, adopting the following technical solution:

[0040] A computer-readable storage medium stores a computer program that can be loaded and executed by a processor to implement the method described in any one of the first aspect.

[0041] In summary, the present application at least includes the following beneficial technical effects: After the temperature in the pyrolysis chamber reaches the preset temperature, a feeding control instruction is generated at a preset time interval. After the pusher assembly receives the feeding control instruction, it pushes the material truck to be pyrolyzed located in the feeding chamber into the pyrolysis chamber. After the material hooking assembly receives the feeding control instruction, it hooks out the material truck closest to the discharging chamber in the pyrolysis chamber into the discharging chamber. The pyrolysis chamber can accommodate N material trucks, enabling the thermal cleaning furnace to simultaneously pyrolyze and clean the metal workpieces to be pyrolyzed in N material trucks. The time of each material truck to be pyrolyzed in the pyrolysis chamber is the same, that is, the processing time of the chemical substances attached to the metal workpieces in each material truck by the thermal cleaning furnace is the same; during the process of feeding and discharging, a part of the heat in the thermal cleaning furnace is dissipated into the feeding chamber and the discharging chamber. Compared with the heat in the pyrolysis chamber being directly dissipated into the air, the heat dissipation in the pyrolysis chamber is reduced, the working efficiency is improved, the energy consumption during the pyrolysis process is reduced, and at the same time, through continuous feeding and discharging, the working efficiency of the thermal cleaning furnace is further improved; and compared with manually moving the metal workpieces to be pyrolyzed into the thermal cleaning furnace and taking the metal workpieces out of the thermal cleaning furnace, the safety is improved. Description of the Drawings

[0042] Figure 1 is a schematic structural diagram of the thermal cleaning furnace of the present application.

[0043] Figure 2 is a schematic flowchart of the control method of one of the embodiments of the present application.

[0044] Figure 3 It is a schematic flow chart of the control method of another embodiment of the present application.

[0045] Figure 4 It is a structural block diagram of the computer device of the present application. Detailed implementation manners

[0046] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the following further describes the present application in detail with reference to the Figures 1-4 accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0047] An embodiment of the present application discloses a control method for a thermal cleaning furnace.

[0048] Referring to Figure 1 , a control method for a thermal cleaning furnace is applied to a thermal cleaning furnace provided with a feeding chamber, a pyrolysis chamber and a discharging chamber. The pyrolysis chamber is used to accommodate N material trucks, where N is a natural number greater than 1; a guide rail for the material truck to slide is arranged in the pyrolysis chamber. One end of the guide rail passes through the feeding port of the pyrolysis chamber and extends into the feeding chamber, and the other end passes through the discharging port of the pyrolysis chamber and extends into the discharging chamber. The thermal cleaning furnace is also provided with a pushing component and a hooking component;

[0049] Referring to Figure 2 , the control method includes:

[0050] Step S101, after the temperature in the pyrolysis chamber reaches the preset temperature, generate a feeding control instruction at a preset time interval;

[0051] Step S102, control the pushing component to push the material truck to be pyrolyzed located in the feeding chamber into the pyrolysis chamber according to the feeding control instruction, and control the hooking component to hook out the material truck closest to the discharging chamber in the pyrolysis chamber into the discharging chamber according to the feeding control instruction; wherein, the material truck to be pyrolyzed is used to hold the metal workpiece to be pyrolyzed;

[0052] Among them, both the preset temperature and the preset time interval can be set manually in advance. The preset temperature is between 300 degrees and 400 degrees, and the preset time interval is set to half an hour, for example.

[0053] It should be noted that both the feeding chamber and the discharging chamber can accommodate at most one material truck, and the pyrolysis chamber can accommodate at most N material trucks; wherein, the number N of material trucks that the pyrolysis chamber can accommodate can be set according to the actual situation. For example, N can be set to 8.

[0054] It can be understood that the feeding and discharging method of the skip car is a squeezing type. The feeding component pushes the skip car to be pyrolyzed in the feeding chamber into the pyrolysis chamber, and then pushes other skip cars in the pyrolysis chamber to move towards the discharging chamber. The hooking component hooks out the skip car closest to the discharging chamber in the pyrolysis chamber into the discharging chamber. That is, the feeding process and the discharging process are carried out simultaneously. The skip car in the feeding chamber enters the pyrolysis chamber, and one skip car in the pyrolysis chamber will leave the pyrolysis chamber.

[0055] In the above embodiment, when the temperature in the pyrolysis chamber reaches the preset temperature, a feeding control instruction is generated at preset time intervals. After the feeding component receives the feeding control instruction, it pushes the skip car to be pyrolyzed in the feeding chamber into the pyrolysis chamber. After the hooking component receives the feeding control instruction, it hooks out the skip car closest to the discharging chamber in the pyrolysis chamber into the discharging chamber. The pyrolysis chamber can accommodate N skip cars, enabling the thermal cleaning furnace to simultaneously pyrolyze and clean the metal workpieces to be pyrolyzed in N skip cars. The time of each skip car to be pyrolyzed in the pyrolysis chamber is the same, that is, the treatment time of the chemical substances attached to the metal workpieces in each skip car by the thermal cleaning furnace is the same. During the feeding and discharging process, a part of the heat in the thermal cleaning furnace is dissipated into the feeding chamber and the discharging chamber. Compared with the heat in the pyrolysis chamber being directly dissipated into the air, the heat dissipation in the pyrolysis chamber is reduced, the working efficiency is improved, the energy consumption during the pyrolysis process is reduced, and at the same time, the working efficiency of the thermal cleaning furnace is further improved through continuous feeding and discharging. And compared with manually moving the metal workpieces to be pyrolyzed into the thermal cleaning furnace and taking the metal workpieces out of the thermal cleaning furnace, the safety is improved.

[0056] As a further embodiment of the control method, when all N skip cars in the pyrolysis chamber are empty skip cars, the control method further includes:

[0057] After the temperature in the pyrolysis chamber reaches the preset temperature, N feeding control instructions are sent to the feeding component and the hooking component at preset time intervals. The feeding component responds to the feeding control instruction and pushes the skip car to be pyrolyzed in the feeding chamber into the pyrolysis chamber, and the hooking component responds to the feeding control instruction and hooks out the empty skip car closest to the discharging chamber in the pyrolysis chamber into the discharging chamber.

[0058] Among them, the empty skip car is a skip car not equipped with metal workpieces. Before starting the furnace, there are N empty skip cars in the pyrolysis chamber, and these N empty skip cars are the empty skip cars left in the pyrolysis chamber after the last furnace shutdown.

[0059] It should be noted that in order to make all the skip cars equipped with metal workpieces in the pyrolysis chamber leave the pyrolysis chamber, N empty skip cars will normally be left in the pyrolysis chamber after each furnace shutdown.

[0060] In the above embodiment, after starting the furnace, that is, after the temperature of the pyrolysis chamber reaches the preset temperature, a feeding control instruction is sent to the pusher assembly and the hook assembly at preset time intervals. After receiving the feeding control instruction, the pusher assembly pushes the pyrolysis material vehicle in the pyrolysis chamber into the pyrolysis chamber. After receiving the feeding control instruction, the hook assembly hooks out the empty material vehicle closest to the discharge chamber in the pyrolysis chamber to the discharge chamber until N empty material vehicles in the pyrolysis chamber are successively pushed out of the pyrolysis chamber.

[0061] As a further embodiment of the control method, the thermal cleaning furnace further includes a first ventilation assembly for nitrogen replacement of the feeding chamber and the discharge chamber. Before the step of generating the feeding control instruction at preset time intervals, it further includes:

[0062] Sending a first ventilation instruction to the first ventilation assembly, and the first ventilation assembly performs nitrogen replacement on the feeding chamber and the discharge chamber in response to the first ventilation instruction;

[0063] Wherein, in order to facilitate nitrogen replacement of the feeding chamber and the discharge chamber simultaneously, the feeding chamber and the discharge chamber are connected through a pipeline;

[0064] Obtaining the oxygen content in the feeding chamber and the discharge chamber, and judging whether the oxygen content in the feeding chamber and the discharge chamber is less than the preset oxygen content. If so, sending a ventilation completion instruction to control the first ventilation assembly to close.

[0065] Wherein, the preset oxygen content can be set or adjusted according to historical experience or actual conditions. For example, in the embodiment of the present application, the preset oxygen content can be set to 6%.

[0066] In the above embodiment, before generating the feeding control instruction at preset time intervals, a first ventilation instruction is sent to the first ventilation assembly. After receiving the first ventilation instruction, the first ventilation assembly performs nitrogen replacement on the feeding chamber and the discharge chamber, that is, nitrogen is filled into the feeding chamber and the discharge chamber, and the gas in the feeding chamber and the discharge chamber is pumped out, so that the oxygen content in the feeding chamber and the discharge chamber is reduced. Then, the oxygen content in the feeding chamber and the discharge chamber is obtained, and it is judged whether the oxygen content in the discharge chamber and the feeding chamber is less than the preset oxygen content. If the oxygen content in the discharge chamber and the feeding chamber is less than the preset oxygen content, a ventilation completion instruction is sent to the first ventilation assembly to close the first ventilation assembly, thereby reducing the risk of excessive oxygen content in the feeding chamber and the discharge chamber and improving safety.

[0067] As a further embodiment of the control method, a feeding furnace door is provided at the feeding port of the pyrolysis chamber, and a discharge furnace door is provided at the discharge port of the pyrolysis chamber; the thermal cleaning furnace further includes a power assembly and a pressing assembly. The power assembly is used to drive the feeding furnace door and the discharge furnace door to open or close, and the pressing assembly is used to press the feeding furnace door and the discharge furnace door after they are closed.

[0068] After the step of controlling the pusher assembly to push the pyrolysis material vehicle located in the feeding chamber into the pyrolysis chamber according to the feeding control instruction, and controlling the hooking assembly to hook the material vehicle closest to the discharging chamber in the pyrolysis chamber into the discharging chamber according to the feeding control instruction, the method further includes:

[0069] Sending a door closing instruction to the power assembly, and the power assembly closes the feeding furnace door and the discharging furnace door in response to the door closing instruction;

[0070] Wherein, the power assembly includes a first power assembly and a second power assembly. The first power assembly is used to drive the feeding furnace door to open or close, and the second power assembly is used to drive the discharging furnace door to open or close;

[0071] Sending a pressing instruction to the pressing assembly, and the pressing assembly presses the feeding furnace door and the discharging furnace door in response to the pressing instruction;

[0072] Wherein, the pressing assembly includes a first pressing assembly and a second pressing assembly. The first pressing assembly is used to press the feeding furnace door, and the second pressing assembly is used to press the discharging furnace door.

[0073] In the above embodiment, after controlling the pusher assembly to push the pyrolysis material vehicle located in the feeding chamber into the pyrolysis chamber according to the feeding control instruction, and controlling the hooking assembly to hook the material vehicle closest to the discharging chamber in the pyrolysis chamber into the discharging chamber according to the feeding control instruction, a door closing instruction is sent to the power assembly. After receiving the closing instruction, the power assembly closes the feeding furnace door and the discharging furnace door; then a pressing instruction is sent to the pressing assembly. After receiving the pressing instruction, the pressing assembly presses the feeding furnace door and the discharging furnace door; by controlling the pressing assembly to press the feeding furnace door and the discharging furnace door, the airtightness of the pyrolysis chamber is improved, thereby improving the safety.

[0074] As a further embodiment of the control method, the thermal cleaning furnace further includes a ventilation assembly for extracting the pyrolysis gas in the feeding chamber and the discharging chamber; after the step that the pressing assembly presses the feeding furnace door and the discharging furnace door in response to the pressing instruction, the method further includes:

[0075] Sending a ventilation instruction to the ventilation assembly, and the ventilation assembly extracts the pyrolysis gas in the feeding chamber and the discharging chamber in response to the ventilation instruction;

[0076] Wherein, the ventilation assembly includes an induced draft fan, and the induced draft fan is a device that generates negative pressure through the rotation of the impeller and then extracts air from the system;

[0077] Obtaining the ventilation duration of the ventilation assembly, determining whether the ventilation duration is greater than a preset ventilation duration. If so, sending a ventilation completion instruction to control the ventilation assembly to close;

[0078] Among them, the preset ventilation time can be set or adjusted according to historical experience or actual conditions. For example, in the embodiment of the present application, the preset ventilation time can be set to 3 minutes.

[0079] It should be noted that the ventilation duration is shorter than the preset time interval.

[0080] In the above embodiment, after the clamping component clamps the feed furnace door and the discharge furnace door in response to the clamping instruction, a ventilation instruction is sent to the ventilation component. After receiving the ventilation instruction, the pyrolysis gas in the feed chamber and the discharge chamber is extracted. During the ventilation process, the ventilation time of the ventilation component is obtained to determine whether the ventilation time of the ventilation component is greater than the preset ventilation time. If the ventilation time of the ventilation component is greater than the preset ventilation time, a ventilation completion instruction is sent to the ventilation component to close the ventilation component, thereby reducing the possibility of danger caused by the pyrolysis gas being emitted into the outside air.

[0081] refer to Figure 3 As a further implementation of the control method, the thermal cleaning furnace further includes a discharge assembly and a cooling chamber, the discharge assembly is used to move the material cart in the discharge chamber to the cooling chamber; after sending a ventilation completion instruction to control the ventilation assembly to close, it also includes:

[0082] Step S201, sending a moving instruction to the discharging component, and the discharging component moves the material cart in the discharging chamber into the cooling chamber in response to the moving instruction;

[0083] Among them, the cooling chamber can accommodate at most one material car, and the cooling chamber is connected with the discharge chamber;

[0084] Step S202, sending a cooling instruction to the cooling component and the ventilation component, the cooling component supplies air into the cooling chamber in response to the cooling instruction, and the ventilation component extracts air from the cooling chamber in response to the cooling instruction;

[0085] Among them, the cooling component includes an air cooler, which is a device that uses the principle of water evaporation effect and a physical method to achieve cooling.

[0086] Step S203, obtaining the cooling time of the material cart in the cooling chamber, and determining whether the cooling time is greater than the preset cooling time. If so, sending a cooling completion instruction to control the cooling component and the ventilation component to close.

[0087] Among them, the preset cooling time can be set or adjusted according to historical experience or actual conditions. For example, in the embodiment of the present application, the preset cooling time can be set to 5 minutes.

[0088] It can be understood that the cooling component and the ventilation component are turned on and off at the same time, that is, the induced draft fan and the cooling machine are turned on at the same time when they receive a cooling instruction, and are turned off at the same time when they receive a cooling completion instruction.

[0089] It should be noted that the cooling duration is less than the preset time interval.

[0090] In the above embodiment, after sending a ventilation instruction to close the ventilation component, a movement instruction is sent to the discharging component. After the discharging component receives the movement instruction, it moves the trolley in the discharging chamber to the cooling chamber; then a cooling instruction is sent to the cooling component and the ventilation component. After the cooling component receives the cooling instruction, it sends air to the cooling chamber, that is, pumps air into the cooling chamber. After the ventilation component receives the ventilation instruction, it extracts the air in the cooling chamber from the cooling chamber; then the cooling duration of the trolley in the cooling chamber is obtained, and it is judged whether the cooling duration is greater than the preset cooling duration. If the cooling duration is greater than the preset cooling duration, a cooling completion instruction is sent to control the cooling component and the ventilation component to close. Since the temperature of the trolley and the metal workpieces in the trolley is relatively high, the heat carried by the trolley and the metal workpieces in the trolley is dissipated into the air in the cooling chamber. By extracting the air with relatively high heat in the cooling chamber, the purpose of cooling is achieved.

[0091] As a further embodiment of the control method, the thermal cleaning furnace further includes a second air exchange component for nitrogen replacement of the pyrolysis chamber; after the temperature in the pyrolysis chamber reaches the preset temperature, it further includes:

[0092] Obtain the oxygen content in the pyrolysis chamber, and judge whether the oxygen content in the pyrolysis chamber is greater than the oxygen content set value. If so, send a second air exchange instruction to control the second air exchange component to perform nitrogen replacement on the pyrolysis chamber.

[0093] It should be noted that the oxygen content set value is set or adjusted according to historical experience or actual conditions. When the oxygen content in the pyrolysis chamber exceeds the oxygen content set value, the second air exchange component will be activated, so that a large amount of nitrogen enters the pyrolysis chamber, and then the oxygen content in the pyrolysis chamber is reduced. This is an oxygen control measure for the pyrolysis chamber under emergency conditions.

[0094] In the above embodiment, after the temperature in the pyrolysis chamber reaches the preset temperature, the oxygen content in the pyrolysis chamber is obtained, and then it is judged whether the oxygen content in the pyrolysis chamber is greater than the oxygen content. If the oxygen content in the pyrolysis chamber is greater than the oxygen content set value, a second air exchange instruction is sent to the second air exchange component. After the second air exchange component receives the second air exchange instruction, it performs nitrogen replacement on the pyrolysis chamber, that is, flushes nitrogen into the pyrolysis chamber and extracts the gas in the pyrolysis chamber, thereby reducing the oxygen content in the pyrolysis chamber and reducing the possibility of explosion caused by too high oxygen content in the pyrolysis chamber.

[0095] The embodiment of the present application also discloses a control system of a thermal cleaning furnace.

[0096] A control system for a thermal cleaning furnace, which is applied to a thermal cleaning furnace provided with a feeding chamber, a pyrolysis chamber and a discharging chamber. The pyrolysis chamber is used to accommodate N material trucks. A guide rail for the material trucks to slide is arranged in the pyrolysis chamber. One end of the guide rail passes through the feeding port of the pyrolysis chamber and extends into the feeding chamber, and the other end passes through the discharging port of the pyrolysis chamber and extends into the discharging chamber. The thermal cleaning furnace is provided with a material pushing assembly and a material hooking assembly. The control system includes:

[0097] A controller, which is connected to the material pushing assembly and the material hooking assembly, and is used to generate a feeding control instruction at a preset time interval after the temperature in the pyrolysis chamber reaches the preset temperature. According to the feeding control instruction, the controller controls the material pushing assembly to push the material truck to be pyrolyzed located in the feeding chamber into the pyrolysis chamber, and controls the material hooking assembly to hook the material truck closest to the discharging chamber in the pyrolysis chamber into the discharging chamber. Wherein, the material truck to be pyrolyzed is used to contain the metal workpiece to be pyrolyzed.

[0098] The control system of the thermal cleaning furnace of the present invention can implement any one of the above control methods of the thermal cleaning furnace, and the specific working process of the control system of the thermal cleaning furnace can refer to the corresponding process in the above method embodiments.

[0099] The embodiments of the present application also disclose a computer device.

[0100] Reference Figure 4 , a computer device, including: a memory and a processor. A computer program that can run on the processor is stored on the memory. When the processor executes the computer program, the above control method of the thermal cleaning furnace is implemented.

[0101] The embodiments of the present application also disclose a computer-readable storage medium.

[0102] A computer-readable storage medium stores a computer program that can be loaded and executed by a processor to implement the above control method of the thermal cleaning furnace.

[0103] Wherein, the computer-readable storage medium can be any tangible medium that contains or stores a program, and this program can be used by or in combination with an instruction execution system, device or component. The program code contained on the computer-readable medium can be transmitted by any appropriate medium, including but not limited to wireless, wire, optical cable, RF, etc., or any suitable combination of the above.

[0104] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited accordingly. Any feature disclosed in this specification (including the abstract and drawings), unless specifically stated, can be replaced by other equivalent or features with similar purposes. That is, unless specifically stated, each feature is only an example in a series of equivalent or similar features.

Claims

1. A control method for a thermal cleaning furnace, characterized in that Applied to a thermal cleaning furnace provided with a feeding chamber, a pyrolysis chamber and a discharging chamber, the pyrolysis chamber is used to accommodate N material trucks, where N is a natural number greater than 1; a guide rail for the material truck to slide is arranged in the pyrolysis chamber, one end of the guide rail passes through the feeding port of the pyrolysis chamber and extends into the feeding chamber, and the other end passes through the discharging port of the pyrolysis chamber and extends into the discharging chamber. The thermal cleaning furnace is also provided with a pushing component and a hooking component; the control method includes: After the temperature in the pyrolysis chamber reaches the preset temperature, a feeding control instruction is generated at preset time intervals. According to the feeding control instruction, the pushing component is controlled to push the material truck to be pyrolyzed located in the feeding chamber into the pyrolysis chamber, and according to the feeding control instruction, the hooking component is controlled to hook out the material truck closest to the discharging chamber in the pyrolysis chamber into the discharging chamber; wherein, the material truck to be pyrolyzed is used to hold the metal workpiece to be pyrolyzed. An inlet furnace door is arranged near the feeding port of the pyrolysis chamber, and an outlet furnace door is arranged near the discharging port of the pyrolysis chamber; the thermal cleaning furnace also includes a power component and a pressing component. The power component is used to drive the inlet furnace door and the outlet furnace door to open or close, and the pressing component is used to press the inlet furnace door and the outlet furnace door after they are closed. After the step of controlling the pushing component to push the material truck to be pyrolyzed located in the feeding chamber into the pyrolysis chamber according to the feeding control instruction, and controlling the hooking component to hook out the material truck closest to the discharging chamber in the pyrolysis chamber into the discharging chamber according to the feeding control instruction, it further includes: Sending a door closing instruction to the power component, and the power component closes the inlet furnace door and the outlet furnace door in response to the door closing instruction; Sending a pressing instruction to the pressing component, and the pressing component presses the inlet furnace door and the outlet furnace door in response to the pressing instruction; The thermal cleaning furnace also includes a discharging component and a cooling chamber, and the discharging component is used to move the material truck in the discharging chamber into the cooling chamber; When all the N material trucks in the pyrolysis chamber are empty material trucks, the control method further includes: After the temperature in the pyrolysis chamber reaches the preset temperature, the feeding control instruction is sent to the pushing component and the hooking component N times at preset time intervals. The pushing component pushes the material truck to be pyrolyzed in the feeding chamber into the pyrolysis chamber in response to the feeding control instruction, and the hooking component hooks out the empty material truck closest to the discharging chamber in the pyrolysis chamber into the discharging chamber in response to the feeding control instruction.

2. The control method of a thermal cleaning furnace according to claim 1, wherein, The thermal cleaning furnace also includes a first air exchange component, and the first air exchange component is used to perform nitrogen replacement on the feeding chamber and the discharging chamber; Before the step of generating the feeding control instruction at preset time intervals, it further includes: Sending a first air exchange instruction to the first air exchange component, and the first air exchange component performs nitrogen replacement on the feeding chamber and the discharging chamber in response to the first air exchange instruction; Obtaining the oxygen content in the feeding chamber and the discharging chamber, and judging whether the oxygen content in the feeding chamber and the discharging chamber is less than the preset oxygen content. If so, sending an air exchange completion instruction to control the first air exchange component to close.

3. The control method of a thermal cleaning furnace according to claim 2, characterized in that, The thermal cleaning furnace further includes a ventilation assembly for extracting pyrolysis gas from the feeding chamber and the discharging chamber. After the step of the pressing assembly pressing the feeding furnace door and the discharging furnace door in response to a pressing instruction, the following steps are further included: Sending a ventilation instruction to the ventilation assembly, and the ventilation assembly extracts pyrolysis gas from the feeding chamber and the discharging chamber in response to the ventilation instruction; Obtaining the ventilation duration of the ventilation assembly, determining whether the ventilation duration is greater than a preset ventilation duration, and if so, sending a ventilation completion instruction to control the ventilation assembly to close.

4. The control method of a thermal cleaning furnace according to claim 3, characterized in that, After the step of sending the ventilation completion instruction to control the ventilation assembly to close, the following steps are further included: Sending a moving instruction to the discharging assembly, and the discharging assembly moves the trolley in the discharging chamber into the cooling chamber in response to the moving instruction; Sending a cooling instruction to the cooling assembly and the ventilation assembly, the cooling assembly sends air into the cooling chamber in response to the cooling instruction, and the ventilation assembly extracts the air in the cooling chamber in response to the cooling instruction; Obtaining the cooling duration of the trolley in the cooling chamber, determining whether the cooling duration is greater than a preset cooling duration, and if so, sending a cooling completion instruction to control the cooling assembly and the ventilation assembly to close.

5. A control method for a thermal cleaning furnace according to claim 1, characterized in that, The thermal cleaning furnace further includes a second air exchange assembly for nitrogen replacement of the pyrolysis chamber. After the temperature in the pyrolysis chamber reaches a preset temperature, the following steps are further included: Obtaining the oxygen content in the pyrolysis chamber, determining whether the oxygen content in the pyrolysis chamber is greater than an oxygen content set value, and if so, sending a second air exchange instruction to control the second air exchange assembly to perform nitrogen replacement on the pyrolysis chamber.

6. A computer device, characterized in that, Including: A memory and a processor, where a computer program that can run on the processor is stored on the memory, and when the processor executes the computer program, the method according to any one of claims 1 to 5 is implemented.

7. A computer-readable storage medium, characterized in that: Storing a computer program that can be loaded and executed by a processor and implement the method according to any one of claims 1 to 5.

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