Vacuum sintering furnace coke discharging system with monitoring, condensation trapping and heating collecting functions

Abstract

The invention relates to a vacuum sintering furnace coke discharging system with monitoring, condensation trapping and heating collecting functions, and belongs to the technical field of coke discharging. The vacuum sintering furnace coke discharging system comprises a monitoring device arranged on a coke discharging pipe and used for collecting information through sensors arranged in an annular array in the coke discharging pipe; the condensing device is arranged in the coke discharging pipe and is used for condensing and trapping tar by introducing a refrigerant; and the heating and collecting device is arranged on the tar discharging pipe, is positioned below the condensing device and is used for collecting tar by heating. The detachable electric capturing device is arranged on the coke discharging pipe and is positioned above the condensing device; comprising an electrical tar precipitator and a precipitation electrode honeycomb tube detachably connected to the electrical tar precipitator. The device integrates multiple angles of coke discharge monitoring, condensation trapping, heating collection and the like, provides reference for optimization of the coke discharge process in the vacuum sintering furnace tube, meets the production requirements of the coke discharge process of the silicon carbide vacuum sintering furnace, and achieves the purpose of intelligent coke discharge.

Description

Technical Field

[0001] The present invention belongs to the technical field of coke discharging, and particularly relates to a coke discharging system for a vacuum sintering furnace that combines monitoring, condensation capture, and heating collection. Background Art

[0002] The application field of coke discharging in vacuum sintering furnaces is becoming more and more extensive. However, there are still the following defects in the current monitoring of coke discharging: First, due to the high temperature of the coke discharging gas and the complex and variable composition of the coke gas, traditional gas sensors cannot monitor multiple gases simultaneously and face various pressures such as real-time monitoring; second, the decomposition of workpieces at different temperatures is uncertain, which may lead to the generation of unknown harmful substances during the sintering process, and their content and changes are worthy of further research and attention, but there is currently a lack of all-round intelligent monitoring.

[0003] At the same time, although the traditional water / solution rinsing technology method (spraying method) used in current tar collection has advantages such as high efficiency and rapidity, whether water or a solvent is used as the rinsing liquid, it will cause waste of resources and may bring problems such as secondary pollution. Although the condenser transformation collection method can achieve the preliminary separation of tar, due to the high viscosity of tar and other properties, pipeline blockage is still a hidden danger in the condensation system. Summary of the Invention

[0004] In view of the deficiencies of the existing technology, the present invention provides a coke discharging system for a vacuum sintering furnace that combines monitoring, condensation capture, and heating collection. It is an intelligent system that integrates multiple aspects such as intelligent coke discharging monitoring, condensation capture, and heating collection of a vacuum sintering furnace, provides a reference for optimizing the coke discharging process in the vacuum sintering furnace tube, meets the production requirements of the coke discharging process of a silicon carbide vacuum sintering furnace, and achieves the purpose of intelligent coke discharging.

[0005] A coke discharging system for a vacuum sintering furnace that combines monitoring, condensation capture, and heating collection includes:

[0006] A monitoring device, which is arranged on the coke discharging pipeline and collects information through sensors in an annular array arranged inside the coke discharging pipeline;

[0007] A condensation device, which is arranged inside the coke discharging pipeline and condenses and captures tar by introducing a refrigerant;

[0008] A heating collection device, which is arranged on the coke discharging pipeline and is located below the condensation device to collect tar by heating.

[0009] The monitoring device includes an inserted circular base arranged coaxially with the pipeline. The gas sensor array is annularly arranged along the inner surface of the inserted circular base and is electrically connected to the single-chip microcomputer. The connection lines surround the outer contour of the entire gas sensor array in a circle around the gas sensor array to form an annular circuit loop. Clamping bolts are arranged inside the annular circuit loop, evenly distributed at the joints of the annular circuit loop and wrapped with cables.

[0010] Two welded flanges are connected to both ends of the inserted circular base to limit and fix the inserted circular base on the coke discharging pipeline. A sealing gasket is arranged between the welded flange and the inserted circular base.

[0011] The inserted circular base is provided with cleaning air holes, and the cleaning air holes are externally connected to a cleaning gas source to introduce cleaning gas into the pipeline interior. The inserted circular base is also provided with a wire bundling mechanism that is narrow at the top and wide at the bottom. A flat high-temperature resistant filter is arranged on the wire bundling mechanism to prevent high-temperature coke gas from being discharged to the outside.

[0012] The condensing device includes a spiral refrigerant copper tube. The spiral refrigerant copper tube is externally connected to a compression condenser. The spiral structure formed by the spiral refrigerant copper tube is thick at the top and thin at the bottom, and the flow direction of the refrigerant is from top to bottom.

[0013] One end of the spiral refrigerant copper tube is provided with a gate valve, and a smart valve manipulator is installed on the gate valve to adjust the refrigerant flow rate by adjusting the opening of the gate valve.

[0014] The heating and collection device includes a heating device, a liquid level sensor, a collection container, and a sealed elastic gate valve. The liquid level sensor is sealed and installed between the heating device and the collection container and is electrically connected to the single-chip microcomputer. The sealed elastic gate valve is connected to the oil outlet of the collection container.

[0015] It also includes a coke discharging centrifugal fan, which is arranged at the top of the coke discharging pipeline to adjust the coke discharging gas flow rate.

[0016] It also includes a detachable electric capture device, which is arranged on the coke discharging pipeline and above the condensing device. It includes an electric tar precipitator. Installation notches are provided on the circumferential side surface of the electric tar precipitator, and sliding doors are arranged at the installation notches. A drawer-type supporting structure driven by a motor is installed at the bottom of the installation notch. The precipitation electrode honeycomb tube is connected and fixed to the drawer-type supporting structure and can be moved in and out of the electric tar precipitator by motor drive.

[0017] The sliding door includes a sealing ring cover. An annular telescopic sliding door is slidably connected inside the sealing ring cover. Cylindrical rollers are installed between the telescopic sliding door and the sealing ring cover to increase the flexibility between the telescopic sliding door and the sealing ring cover. The top of the precipitation electrode honeycomb tube is of a honeycomb structure.

[0018] It also includes a display device electrically connected to the single-chip microcomputer for displaying the data monitored by the sensor; and an alarm system is configured to give an alarm when the data is abnormal.

[0019] By means of the above technical solution, the invention of the present application has at least the following beneficial effects:

[0020] (1) The gas sensor array in the present invention greatly improves the working efficiency, reduces the energy consumption, prolongs the working life of the sensor, realizes real-time monitoring and dynamically transmits the coke gas to the single-chip microcomputer, and makes corresponding feedback through the condensation device and the coke discharging centrifugal fan. This data-driven mechanism will be more efficient and fast in response, which is conducive to solving the problem of electric energy waste.

[0021] (2) The present invention can reduce the input of manpower, make the data monitoring comprehensive. The deployment of the array gas sensors makes the coke discharging process more transparent and reasonable. Each sensor cooperates with each other to display the data in real time, reducing the cost of manual inspection of the pipeline after the coke discharging is completed. At the same time, the setting of the alarm mechanism can realize the purpose of unmanned monitoring of the coke discharging process in time, and the multi-dimensional monitoring greatly improves the stability and safety of the pipeline.

[0022] (3) Both the electric trapping device and the monitoring device of the present invention are detachable designs, which are convenient for operation and maintenance and repair. The electric trapping device adopts a roller slideway design to realize the free cleaning of the precipitation electrode, avoiding the problem that tar adheres to the electrode surface for a long time and affects the coke discharging efficiency. At the same time, cleaning air holes are installed in the pipeline to cooperate with each other to improve the coke discharging efficiency in the pipeline.

[0023] (4) The single-chip microcomputer of the present invention incorporates a neural network based on LSTM for dynamic control of the entire coke discharging system. That is, through the self-encoding network of the machine model algorithm - Long Short-Term Memory (LSTM), the time-series correlation characteristics of the coke gas concentration are analyzed based on the data monitored by the gas sensor array, the corresponding situation between the coke gas in the furnace and the coke discharging time during the coke discharging process is analyzed and a memory curve is formed, and the proportional, integral, and differential coefficients are corrected in real time adaptively according to the prediction instruction and accurate decisions are given, which is conducive to making quick decisions for the next coke discharging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic overall layout diagram of the coke discharging system of the vacuum sintering furnace with both monitoring, condensation trapping and heating collection provided by the present invention;

[0025] Figure 2 It is a schematic structural diagram of the monitoring system in the coke discharging system of the vacuum sintering furnace with both monitoring, condensation trapping and heating collection provided by the present invention;

[0026] Figure 3 It is a schematic structural diagram of the gas sensor array in the monitoring system of the present invention;

[0027] Figure 4 It is a schematic structural diagram of the beam line mechanism in the monitoring system of the present invention;

[0028] Figure 5 It is a front view of the spiral refrigerant copper tube in the condensation system of the present invention;

[0029] Figure 6 It is a top view of the spiral refrigerant copper tube in the condensation system of the present invention;

[0030] Figure 7 It is a schematic structural diagram of the intelligent valve manipulator in the condensation system of the present invention;

[0031] Figure 8 It is a schematic structural diagram of the electric trapping device of the present invention;

[0032] Figure 9 It is a schematic structural diagram of the drawer side support plate track of the electric trapping device of the present invention;

[0033] Figure 10 It is a schematic structural diagram of the ring cover sliding door of the electric trapping device of the present invention;

[0034] Figure 11 It is a front view of the structure of the heating and collection system of the present invention;

[0035] Figure 12 It is a bottom view of the structure of the heating and collection system of the present invention;

[0036] Figure 13 It is a control relationship block diagram of the present invention;

[0037] Figure 14 It is a working principle block diagram of the gas sensor array in the present invention;

[0038] Wherein:

[0039] 1 - Monitoring device, 2 - Condensation device, 3 - Electrostatic precipitator device, 4 - Heating and collection device, 5 - Coke discharging centrifugal fan, 6 - Display device, 7 - Alarm status light, 8 - Compression condenser, 9 - Single-chip microcomputer, 101 - Welding flange, 102 - Beam line mechanism, 103 - Coke discharging pipeline, 104 - Cleaning air hole, 105 - Sealing gasket, 106 - Hexagon bolt I, 107 - Clamping bolt, 108 - Gas sensor array, 109 - Inserted circular base, 110 - Ring circuit, 111 - Conductive wire through hole, 112 - Beam line base, 113 - Flat high-temperature resistant filter, 201 - Intelligent valve manipulator, 202 - Gate valve, 203 - Spiral refrigerant copper tube, 204 - Upper refrigerant inlet, 205 - Lower refrigerant outlet, 206 - Gate valve, 207 - Rubber pad, 208 - Bracket iron sheet, 209 - Bolt hole, 210 - Hexagon bolt II, 301 - Electrostatic tar precipitator, 302 - Precipitation electrode honeycomb tube, 303 - Drawer side support plate track, 304 - Drawer-type positive support plate, 305 - Limit base, 306 - Slide track, 307 - Cylindrical roller, 308 - Sealing ring cover, 309 - Telescopic sliding door, 310 - Installation notch, 401 - Heating device, 402 - Collection container, 403 - Liquid level sensor, 404 - Sealed elastic gate valve, 405 - Oil outlet. Specific implementation mode

[0040] For better explaining the present invention for easy understanding, the technical solutions and effects of the present invention will be described in detail below with reference to the drawings through specific implementation modes.

[0041] Combined with Figures 1-14 As shown, a vacuum sintering furnace coke discharging system with functions of monitoring, condensation capture and heating collection provided by the present invention includes a monitoring device 1, a condensation device 2, an electrostatic precipitator device 3, a heating and collection device 4 and a coke discharging centrifugal fan 5 arranged on a vacuum sintering furnace, and a display device 6 is externally connected to the monitoring device 1. The monitoring device 1 is arranged on a horizontally arranged coke discharging pipeline 103, and the condensation device 2, the electrostatic precipitator device 3, the heating and collection device 4 and the coke discharging centrifugal fan 5 are arranged on a vertically arranged coke discharging pipeline 103 communicated with the horizontally arranged coke discharging pipeline 103.

[0042] The monitoring device 1 feeds back the real-time concentration and components of coke-quality gas to the single-chip microcomputer 9 in real time and adjusts each of the other devices. The condensation device 2 and the electrostatic precipitator device 3 cooperate with each other to jointly improve the coke suction efficiency and meet the production requirements, and obviously meet the gas quality requirements of the process. Finally, the heating and collection device 4 and the coke discharging centrifugal fan 5 jointly realize the intelligent application operation of coke discharging, can realize the unmanned intelligent control of coke discharging, improve the production efficiency and reduce the manpower requirement.

[0043] The monitoring system in the present invention can achieve all-round intelligent monitoring of the coke discharging gas. The design of the monitoring system comprehensively considers the portability of installation and the stable durability for long-term use in high-temperature environments, aiming to improve the intelligent monitoring during the coke discharging process. Specifically, the monitoring device 1 includes an insertable circular base 109, which is coaxially arranged with the pipeline 103. Two welded flanges 101 are connected to both ends of the insertable circular base 109, and the three are coaxially arranged. The two welded flanges 101 are connected by hexagon bolts I 106, thereby limiting and fixing the insertable circular base 109 on the pipeline 103. The insertable circular base 109 is located at the horizontal center of the necks of the two welded flanges 101 at its front and rear ends. A sealing gasket 105 is provided between the two welded flanges 101 and the insertable circular base 109 to make the sealing surfaces of the welded flanges 101 completely fit and sealed, realizing the coke gas sealing function. The monitoring device 1 further includes a gas sensor array 108. The gas sensor array 108 is annularly arrayed along the inner surface of the insertable circular base 109 and is electrically connected to the single-chip microcomputer 9. The connection line between the gas sensor array 108 and the single-chip microcomputer 9 surrounds the outer contour of the entire gas sensor array 108 for one week to form an annular circuit loop 110. Clamping bolts 107 are arranged inside the annular circuit loop 110. The clamping bolts 107 are evenly distributed at the joints of the annular circuit loop 110 and are wrapped with cables, which is used to increase the firmness of the gas sensor array 108, prevent it from falling off, and at the same time has good stability and corrosion resistance.

[0044] The single-chip microcomputer 9 has a neural network based on LSTM built-in, which dynamically controls the entire coke discharging system. That is, through the autoencoder network of the machine model algorithm - Long Short-Term Memory (LSTM), it analyzes the time-series correlation characteristics of the coke gas concentration based on the data monitored by the gas sensor array, analyzes the corresponding situation between the coke gas in the furnace and the coke discharging time during the coke discharging process and forms a memory curve, and adaptively corrects the proportional, integral, and differential coefficients in real time according to the prediction instruction and gives accurate decisions, which is conducive to making quick decisions in the next coke discharging process.

[0045] In this embodiment, the monitoring device 1 includes an insertable circular base 109. Gas sensors are circumferentially arrayed on the inner surface of the insertable circular base 109 to form a gas sensor array 108, greatly improving the real-time sensing accuracy of different gases. The gas sensors include a CO sensor, a CO2 sensor, and a VOCs sensor. The gas sensor array 108 is electrically connected to a single-chip microcomputer 9 to transmit the monitored data to the single-chip microcomputer 9. Both ends of the insertable circular base 109 are clamped, limited, and fixed on a pipeline 103 through welding flanges 101. Four bolt holes are evenly formed in the welding flanges 101, and the two welding flanges 101 are connected and fixed through four hexagon bolts I 106. In order to achieve coke gas sealing, a sealing ring is provided between the insertable circular base and the welding flange 101.

[0046] A wire conduction through-hole 111 and a cleaning air hole 104 are oppositely formed in the insertable circular base 109. The cleaning air hole 104 is oppositely formed with the wire conduction through-hole 111. The cleaning air hole 104 is externally connected to a cleaning gas source to introduce cleaning gas into the pipeline 103. A wire bundling mechanism 102 is arranged on the outer surface of the insertable circular base 109. The wire bundling mechanism 102 includes a wire bundling base 112. A frustum-shaped wire bundling port that is wider at the bottom and narrower at the top is arranged at the top of the wire bundling base 112. The wire conduction through-hole 111 is formed on the upper surface of the wire bundling port, which can play a role in sealing and bundling the circular circuit loop 110. A flat heat-resistant filter 113 is arranged on the wire bundling base 112 between the wire conduction through-hole 111 and the coke discharging pipeline 103, effectively preventing high-temperature coke gas from being discharged to the outside.

[0047] In this embodiment, in order to introduce cleaning gas into the pipeline 103, the insertable circular base 109 is provided with a cleaning air hole 104, which is externally connected to a cleaning gas source. In order to lead out the circular circuit loop 110 inside the insertable circular base 109, a wire conduction through-hole 111 is formed in the insertable circular base 109, which is oppositely formed with the cleaning air hole 104, and the cleaning air hole 104 is located at the lower part. In order to achieve the bundling of the circular circuit loop 110 and the sealing of the inside of the pipeline 103, a wire bundling mechanism 102 is arranged on the insertable circular base 109, which communicates with the inside of the pipeline 103. The wire bundling mechanism 102 includes a wire bundling base 112 that is fixedly communicated with the insertable circular base 109. A frustum-shaped wire bundling port is arranged at the top of the wire bundling base 112. The wire conduction through-hole 111 is formed on the upper surface of the wire bundling port. The wire bundling port that is wider at the bottom and narrower at the top can play a good sealing role and simultaneously achieve the bundling function of the circular circuit loop 110 led out from the inside of the insertable circular base 109.

[0048] The single-chip microcomputer 9 is electrically connected to the display device 6 and is provided with an alarm status light 7. In this embodiment, the display device 6 is an LCD liquid crystal screen. The CO sensor, CO2 sensor, and VOCs sensor in the gas sensor matrix cooperate with each other to transmit the collected information to the single-chip microcomputer 9 in real time. After the single-chip microcomputer 9 completes the acquisition and optimization processing of the signal, it presents the real-time parameter data of the coke gas on the LCD liquid crystal screen and gives a real-time warning through the alarm status light 7. The deployment of multiple types of gas sensors makes the coke discharging process more transparent and reasonable. At the same time, the LCD liquid crystal screen can realize the visualization of coke gas data. In this embodiment, the status indicator is set at different levels according to different proportions of coke gas content to display various proportions of coke gas content. When the coke gas content is abnormal, a buzzer alarm will be triggered.

[0049] The condensation device 2 is arranged inside the coke discharging pipe 103 and includes a spiral refrigerant copper pipe 203. The spiral refrigerant copper pipe 203 is externally connected to a compression condenser 8. The refrigerant in the spiral refrigerant copper pipe 203 enters from the top and exits from the bottom. The upper refrigerant inlet 204 and the lower refrigerant inlet are tightly fixed to the inner wall surface of the coke discharging pipe 103 by welding. In order to simplify the control of the refrigerant flow rate and make it easy to implement, and at the same time realize unmanned intelligent control, improve the production efficiency of the whole device and reduce the labor cost, a gate valve 202 is arranged at one end of the spiral refrigerant copper pipe 203. An intelligent valve manipulator 201 is installed on the gate valve 202. The intelligent valve manipulator 201 is electrically connected to the single-chip microcomputer 9 and is arranged close to the upper refrigerant inlet 204.

[0050] In this embodiment, the spiral refrigerant copper pipe 203 is a cone formed by the spiral of the refrigerant conveying pipeline, thicker at the top and thinner at the bottom. It is arranged inside the coke discharging pipe 103. The upper refrigerant inlet 204 is externally connected to the compression condenser 8 for inputting refrigerant into the spiral refrigerant copper pipe 203. The lower refrigerant inlet is located at the bottom of the cone. The refrigerant enters from the top and exits from the bottom to cool the coke gas inside the coke discharging pipe 103. The inner wall of the spiral refrigerant copper pipe 203 is smooth and flat. Both the upper refrigerant inlet 204 and the lower refrigerant outlet 205 are horizontally arranged, which is conducive to the flow of the refrigerant in the spiral refrigerant copper pipe 203. The intelligent valve manipulator 201 is arranged on the spiral refrigerant copper pipe 203 and is fixed close to the upper refrigerant inlet 204.

[0051] The intelligent valve manipulator 201 is a commercially available intelligent manipulator valve. For heat insulation, a rubber pad 207 is arranged between the intelligent valve manipulator 201 and the spiral refrigerant copper pipe 203 to prevent the intelligent valve manipulator 201 from being damaged by the high temperature heat contained in the coke gas. The intelligent valve manipulator 201 is electrically connected to the single-chip microcomputer 9. The single-chip microcomputer 9 adjusts the opening of the gate valve 206 through the intelligent valve manipulator 201 according to the feedback of the gas sensor array 108, so as to adjust the flow rate of the refrigerant in the spiral refrigerant copper pipe 203.

[0052] In this embodiment, an intelligent valve manipulator 201 for intelligent adjustment according to the data feedback of the gas sensor matrix is provided on the spiral refrigerant copper tube 203. The intelligent valve manipulator 201 is fixedly connected to the spiral refrigerant copper tube 203 through a bracket iron sheet 208 at its bottom. Relative bolt holes are provided on the two bracket iron sheets 208, and the two are connected by a hexagon bolt II 210. In order to insulate heat, a rubber pad 207 is provided between the spiral refrigerant copper tube 203 and the bracket iron sheet 208. In order to adjust the refrigerant flow rate, a gate valve 202 is provided on the spiral refrigerant copper tube 203. In order to achieve intelligent control, the intelligent valve manipulator 201 is electrically connected to the single-chip microcomputer 9. The single-chip microcomputer 9 obtains the concentration and components of the coking gas through the data monitored by the gas sensor array 108, and starts the intelligent valve manipulator 201 through the real-time response feedback of the intelligent valve manipulator 201 to adjust the opening of the gate valve 206, so as to adjust the refrigerant flow rate inside the spiral refrigerant copper tube 203. As the coking gas decreases, the monitoring device 1 uploads the results monitored by the gas sensor array 108 to the single-chip microcomputer 9, and the single-chip microcomputer 9 adjusts the deflection of the gate valve 202 through the intelligent valve manipulator 201 according to the results fed back by the gas sensor array 108 to achieve the purpose of accurately controlling the flow rate.

[0053] The electric trapping device 3 is arranged on the coke discharging pipeline 103, above the condensation device 2, and includes an electric tar precipitator 301 and a precipitation electrode honeycomb tube 302. The precipitation electrode honeycomb tube 302 is detachably installed on the electric tar precipitator 301 to achieve detachable treatment of the precipitation electrode honeycomb tube 302. An installation notch 310 is formed on the circumferential side surface of the electric tar precipitator 301, so that the electric tar precipitator 301 is arc-shaped. A sliding door is arranged at the installation notch 310 to open and close the electric tar precipitator 301, thereby realizing the detachability of the precipitation electrode honeycomb tube 302. A sealing ring cover 308 is arranged at the bottom of the electric tar precipitator 301, and the electric tar precipitator 301 is installed on the inner ring wall of the sealing ring cover 308. An annular telescopic sliding door 309 is slidably connected inside the sealing ring cover 308, and a cylindrical roller 307 is installed between the telescopic sliding door 309 and the sealing ring cover 308 to increase the flexibility between the telescopic sliding door 309 and the sealing ring cover 308. A notch is arranged at the end of the telescopic sliding door 309, which abuts against the upper side wall of the electric tar precipitator 301 to achieve sealing. A drawer-type supporting structure is installed at the bottom of the installation notch 310 for the fixed support and movement of the precipitation electrode honeycomb tube 302. The drawer-type supporting structure includes a drawer-side support plate track 303 driven by a motor. The ends of the two drawer-side support plate tracks 303 are connected and fixed through a drawer-type front support plate 304. The drawer-side support plate track 303 is a U-shaped chute track 306, and a limiting base 305 is arranged on the chute track 306 for the movement limit and fixation of the precipitation electrode honeycomb tube 302. During the cleaning process, the telescopic sliding door 309 is pulled out from the sealing ring cover 308 to the outer wall of the electric tar precipitator 301, and then the drawer-type supporting structure is pulled out outward by the motor drive, driving the precipitation electrode honeycomb tube 302 to slide out smoothly, and finally completing the disassembly and cleaning steps.

[0054] In this embodiment, the top of the precipitation electrode honeycomb tube 302 is a honeycomb structure, which is composed of a plurality of regular hexagon honeycomb units closely arranged into a honeycomb structure. The structure is compact and reasonable, without electric field holes, with a large flow area, low gas flow rate, and less steel consumption. The detachable installation of the precipitation electrode honeycomb tube 302 greatly extends the service life of the electric trapping system, and at the same time, the operation is simple and easy to implement, facilitating the cleaning of the inside of the device by the staff.

[0055] Thanks to the synergistic effect of the condensation device 2 and the electric trapping device 3, tar particles in the waste gas can be effectively trapped and removed, and the coke absorption efficiency can reach more than 90%, which can obviously meet the requirements of the process for gas quality and is beneficial to environmental protection. The designs of the condensation device 2 and the electric trapping device 3 consider the rationality and intelligent modularity of operation, which is convenient for maintenance and upgrading.

[0056] The coke discharging centrifugal fan 5 is arranged on the top of the electric trapping device 3 and is electrically connected to the single-chip microcomputer 9 to adjust the coke discharging gas flow.

[0057] The heating and collecting device 4 is arranged on the coke discharging pipeline 103, below the condensation device 2, and includes a heating device 401, a liquid level sensor 403, a collecting container 402 and a sealed elastic gate valve 404. The heating device 401 is installed directly below the condensation device 2 and is coaxially welded and sealed with the coke discharging pipeline 103. The liquid level sensor 403 is sealed and installed between the heating device 401 and the collecting container 402, is electrically connected to the single-chip microcomputer 9, and is displayed through the display device 6. The upper part of the sealed elastic gate valve 404 communicates with the collecting container 402, and the lower part is connected to the oil outlet 405. In this embodiment, the heating device 401 is an electric heating sleeve.

[0058] When the heating device 401 is started, the heated tar will slide into the collecting container 402, thus effectively suppressing the problem of tar adhering to the wall surface of the coke discharging pipeline 103. At the same time, the liquid level sensor 403 transmits the tar depth in the collecting container 402 to the single-chip microcomputer 9 and is displayed in real time through the display device 6, which is convenient for the staff to further judge the tar load condition and open the gate valve 202, achieving the purpose of real-time monitoring of the tar load distribution. The device has a simple and reasonable structure, is not easily damaged and can be implemented completely. At the same time, the electrical connection between the sealed elastic gate valve 404 and the single-chip microcomputer 9 realizes the intelligent information transmission of the sealed elastic gate valve 404.

Claims

1. A vacuum sintering furnace coke discharging system with functions of monitoring, condensation trapping and heating collection, characterized in that: Including: A monitoring device, which is arranged on the coke discharging pipeline and collects information through sensors in an annular array arranged inside the coke discharging pipeline; A condensation device, which is arranged inside the coke discharging pipeline and condenses and captures tar by introducing refrigerant; A heating and collection device, which is arranged on the coke discharging pipeline and is located below the condensation device to heat and collect tar.

2. The vacuum sintering furnace coke discharging system with monitoring, condensation trapping and heating collection according to claim 1, characterized in that: The monitoring device includes an inserted circular base arranged coaxially with the pipeline. The gas sensor array is arranged in an annular array along the inner surface of the inserted circular base and is electrically connected to the single-chip microcomputer. The connection lines surround the outer contour of the entire gas sensor array in a circle around the gas sensor array to form an annular circuit loop. Clamping bolts are arranged inside the annular circuit loop and are evenly distributed at the joints of the annular circuit loop and are wrapped with cables.

3. The vacuum sintering furnace coke discharging system with monitoring, condensation trapping and heating collection according to claim 2, characterized in that: Two welded flanges are connected to both ends of the inserted circular base to limit and fix the inserted circular base on the coke discharging pipeline; a sealing gasket is arranged between the welded flange and the inserted circular base.

4. A vacuum sintering furnace coke discharging system with monitoring, condensation trapping and heating collection as claimed in claim 2, characterized in that: Cleaning air holes are opened on the inserted circular base, and the cleaning air holes are externally connected to a cleaning gas source to introduce cleaning gas into the pipeline interior; a wire bundling mechanism with a narrow upper part and a wide lower part is also arranged on the inserted circular base, and a flat high-temperature resistant filter is arranged on the wire bundling mechanism to prevent high-temperature coke gas from being discharged to the outside.

5. A vacuum sintering furnace coke discharging system with monitoring, condensation trapping and heating collection as claimed in claim 1, characterized in that: The condensation device includes a spiral refrigerant copper pipe, the spiral refrigerant copper pipe is externally connected to a compression condenser, the spiral structure formed by the spiral refrigerant copper pipe is thick at the top and thin at the bottom, and the flow direction of the refrigerant is from top to bottom.

6. The vacuum sintering furnace coke discharging system with monitoring, condensation trapping and heating collection according to claim 5, characterized in that: A gate valve is arranged at one end of the spiral refrigerant copper pipe, and an intelligent valve manipulator is installed on the gate valve to adjust the refrigerant flow by adjusting the opening of the gate valve.

7. A vacuum sintering furnace coke discharging system with monitoring, condensation trapping and heating collection as claimed in claim 1, characterized in that: The heating and collection device includes a heating device, a liquid level sensor, a collection container and a sealed elastic gate valve. The liquid level sensor is hermetically installed between the heating device and the collection container and is electrically connected to the single-chip microcomputer; the sealed elastic gate valve is connected to the oil outlet of the collection container.

8. A vacuum sintering furnace coke discharging system with monitoring, condensation trapping and heating collection as claimed in claim 1, characterized in that: It also includes a coke discharging centrifugal fan, which is arranged at the top of the coke discharging pipeline to adjust the coke discharging gas flow.

9. The vacuum sintering furnace coke discharging system with monitoring, condensation trapping and heating collection according to claim 1, characterized in that: It also includes a detachable electric trapping device, which is arranged on the coke discharging pipeline and is located above the condensation device; it includes an electric tar precipitator. Installation notches are opened on the circumferential side surface of the electric tar precipitator, and sliding doors are arranged at the installation notches. A drawer-type supporting structure driven by a motor is installed at the bottom of the installation notch, and the precipitation electrode honeycomb tube is connected and fixed to the drawer-type supporting structure and can be moved in and out of the electric tar precipitator by motor drive; The sliding door includes a sealing ring cover, and an annular telescopic sliding door is slidably connected inside the sealing ring cover; cylindrical rollers are installed between the telescopic sliding door and the sealing ring cover to increase the flexibility between the telescopic sliding door and the sealing ring cover; the top of the precipitation electrode honeycomb tube is a honeycomb structure.

10. A vacuum sintering furnace coke discharging system with monitoring, condensation trapping and heating collection as claimed in claim 1, characterized in that: It also includes a display device electrically connected to the single-chip microcomputer for displaying the data monitored by the sensors; and an alarm system is configured to give an alarm when the data is abnormal.

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