Automatic metering system and method for single-tank yield of tank-type furnace

Abstract

The invention relates to the technical field of pot-type furnaces, in particular to a pot-type furnace single-pot yield automatic metering system and method. A plurality of groups of charging buckets are arranged in the pot-type furnace, each charging bucket comprises a weighing mechanism and a control cabinet, a collection hopper is arranged below one group of charging buckets, discharge ports of the charging buckets are communicated with the collection hopper, the collection hopper is rigidly connected with a weighing module, the collection hopper is suspended below the weighing module, and the weighing module is electrically connected with the control cabinet. The weighing module sends weighed data to the control cabinet, the collection hopper outlet pipeline is vertically arranged, one end of the collection hopper outlet pipeline is connected with the bottom of the collection material port, the other end of the collection hopper outlet pipeline is connected with the conveying equipment, and the collection hopper outlet pipeline is provided with a flap valve. By arranging the weighing mechanism with the integrated hopper, the accumulated discharging amount of the pot-type furnace is measured, more accurate pot-type furnace yield data is obtained, the data of the weighing module is sent to the control cabinet, a metering value can be obtained in real time, and the automation level of metering is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pot furnaces, and particularly to an automatic metering system and method for the single-pot output of a pot furnace. Background Art

[0002] In 2023, the domestic output of calcined coke was nearly 30 million tons, which was mainly used for carbon materials such as pre-baked anodes for aluminum, cathodes, negative electrode materials processing, and electrodes. More than 80% of the output was produced by the calcination process of pot furnaces. The production process adjustment of pot furnaces is closely related to the actual output. Especially during the start-up stage of pot furnace baking, it is necessary to accurately understand the actual output.

[0003] Currently, the output metering is mainly to install belt scales at the end of the conveying equipment to measure the total output of two or four series-connected pot furnaces. The obtained cumulative flow is calculated based on the instantaneous flow, and the instantaneous flow changes greatly, resulting in inaccurate metering. Therefore, only a rough metering of the pot furnace output can be achieved, and accurate metering cannot be done, let alone the metering of the single-pot output. This rough metering often does not match the actual yield rate of the pot furnace, and even obviously incorrect actual yield rates may be calculated.

[0004] Moreover, since the traditional metering method is to manually obtain the metering data, complete the statistics and then report, the environmental protection department cannot monitor the output of the pot furnace. Therefore, in areas with strict environmental protection, only the method of stopping the furnace can be adopted to ensure that the enterprise has achieved production reduction operations. However, once the pot furnace is started, stopping the furnace for production reduction will seriously shorten the service life of the pot furnace, and this way of stopping the furnace cannot be recognized and supported by the enterprise. Therefore, a more accurate and real-time metering system is urgently needed in the output metering of pot furnaces. Summary of the Invention

[0005] In view of the above-mentioned disadvantages and deficiencies of the prior art, the present invention provides an automatic metering system and method for the single-pot output of a pot furnace. By setting a weighing mechanism with a collecting hopper, the cumulative discharge amount of the pot furnace is measured, and more accurate pot furnace output data is obtained. By sending the data of the weighing module to the control cabinet, the metering value can be obtained in real time, improving the automation level of metering.

[0006] To achieve the above object, the main technical solutions adopted by the present invention include: An automatic metering system for the single-tank output of a pot furnace. There are several groups of material tanks in the pot furnace, including a weighing mechanism and a control cabinet. The weighing mechanism includes a collecting hopper, a collecting hopper outlet pipe, and a weighing module. A collecting hopper is provided below one group of material tanks, and the discharge port of the material tank is communicated with the collecting hopper. The collecting hopper is rigidly connected to the weighing module, so that the collecting hopper is suspended below the weighing module. The weighing module is electrically connected to the control cabinet, and the weighing module sends the measured data to the control cabinet. The collecting hopper outlet pipe is vertically arranged, one end is connected to the bottom of the collecting hopper, and the other end is connected to the conveying equipment. A flap valve is provided on the collecting hopper outlet pipe.

[0007] By setting a weighing mechanism with a collecting hopper, the cumulative discharge amount of one group of material tanks in the pot furnace within a fixed period of time can be measured, so as to obtain more accurate output data of the pot furnace, and solve the problem that only the instantaneous flow rate can be obtained in traditional metering, resulting in a high error rate of the calculated data. By sending the data of the weighing module to the control cabinet, the metering value can be obtained in real time, which improves the automation level of metering compared with the traditional manual data collection and collation report.

[0008] Further, the discharge port of the material tank is connected to a discharging machine, and a chute is provided at the discharge port of the discharging machine. The chute inclines towards the center of one group of material tanks.

[0009] By setting the chute, the materials discharged by each discharging machine can flow into the collecting hopper.

[0010] Further, the discharge port of the chute and the collecting hopper are connected by a flexible connection, and the collecting hopper outlet pipe and the conveying equipment are connected by a flexible connection.

[0011] By setting the upper and lower ends of the collecting hopper to be flexible connections, the influence of other devices connected to the collecting hopper on weighing is excluded, and the weighing module can measure more accurately.

[0012] Further, the volume of the collecting hopper is 1.5 - 2 times the total volume of the materials continuously discharged by one group of material tanks for half an hour under the maximum production capacity.

[0013] By setting the volume of the collecting hopper, the situation of material overflow during the measurement process can be avoided.

[0014] Further, there are 4 weighing modules. The 4 weighing modules are respectively arranged directly above the four corners of the collecting hopper and are connected to the four corners of the collecting hopper. The collecting hopper is in a horizontal state.

[0015] By setting 4 weighing modules and their positions, the stress of weighing is ensured to be uniform, and the situation of inclined pulling resulting in metering errors is prevented, so that the weighing module can weigh the collecting hopper more accurately.

[0016] Further, the discharge port of the material tank is connected to the discharging machine, and the weighing module is installed on the steel platform on the same floor as the discharging machine.

[0017] Further, the flap valve rotates downward along one side of the flap to an open state.

[0018] By setting the flap valve to turn downward, it can be smoothly opened, avoiding the situation where it cannot be opened due to the pressure of the material above the flap valve.

[0019] Further, the flap valve is an electric valve, and the flap valve is connected to the control cabinet.

[0020] By connecting the flap valve to the control cabinet, the flap valve can be remotely adjusted through the control cabinet, improving the automation level of metering.

[0021] Further, the control cabinet is connected to the central control display screen of the pot furnace, and the data of the control cabinet is sent to the terminal of the environmental protection department.

[0022] By connecting the control cabinet to the central control display screen, the metering data can be monitored in real time. By sending the data to the terminal of the environmental protection department, the environmental protection department can obtain the instant metering data, judge the actual production reduction situation of the enterprise according to this data, and avoid forced furnace shutdown in the case of missing real-time data, bringing losses to the enterprise.

[0023] An automatic metering method for the single-tank output of a pot furnace includes the following steps: S01: The control cabinet starts the single-tank output metering program; S02: Close the flap valve. The number of material tanks to be weighed in a group of material tanks is n. The discharging machines connected to the n material tanks discharge materials continuously, and the discharged materials accumulate in the collecting hopper; S03: After discharging for half an hour, read the data a kg weighed by the weighing module; S04: Calculate the single-tank output as a÷n×2 kg / h; S05: Open the flap valve, and the materials in the collecting hopper flow into the conveying equipment; S06: The single-tank output test ends.

[0024] By setting a specific mobile metering method, an accurate single-tank output can be obtained.

[0025] The beneficial effects of the present invention are: The automatic metering system and method for the single-tank output of a pot furnace of the present invention can measure the cumulative discharge amount of a group of material tanks of the pot furnace within a fixed period of time by setting a weighing mechanism with a collecting hopper, so as to obtain more accurate pot furnace output data, and solve the problem that only instantaneous flow can be obtained in traditional metering, resulting in a relatively high error rate of the calculated data.

[0026] By sending the data of the weighing module to the control cabinet, the metering value can be obtained in real time. Compared with the traditional method of manually collecting data and then sorting and reporting, the automation level of metering is improved. Connecting the control cabinet to the central control display screen enables real-time monitoring of the metering data. After sending the data to the terminal of the environmental protection department, the environmental protection department can obtain the instant metering data and judge the actual production reduction situation of the enterprise based on this data, avoiding forced furnace shutdown in the case of missing real-time data and causing losses to the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of an automatic metering system for the single-tank output of a pot furnace according to the present invention.

[0028] In the figure: 1, discharging machine; 2, inclined chute; 3, aggregate hopper; 4, steel platform; 5, weighing module; 6, outlet pipe of the aggregate hopper; 7, flap valve; 8, conveying equipment; 9, control cabinet; 10, central control display screen; 11, terminal of the environmental protection department. DETAILED DESCRIPTION OF THE INVENTION

[0029] For better explanation of the present invention and for easy understanding, the present invention will be described in detail below in conjunction with the drawings through specific embodiments. Among them, the orientation nouns such as "up" and "down" mentioned in this article are based on Figure 1 the orientation shown. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to convey the scope of the present invention completely to those skilled in the art.

[0030] As Figure 1 shown, an automatic metering system for the single-tank output of a pot furnace, wherein there are several groups of material tanks in the pot furnace, including a weighing mechanism and a control cabinet 9. The weighing mechanism includes an aggregate hopper 3, an outlet pipe of the aggregate hopper 3 and a weighing module 5. An aggregate hopper 3 is provided below a group of material tanks, and the discharge port of the material tank is communicated with the aggregate hopper 3. The aggregate hopper 3 is rigidly connected to the weighing module 5, so that the aggregate hopper 3 is suspended below the weighing module 5. The weighing module 5 is electrically connected to the control cabinet 9, and the weighing module 5 sends the weighed data to the control cabinet 9. The outlet pipe of the aggregate hopper 3 is vertically arranged, one end is connected to the bottom of the aggregate hopper, and the other end is connected to the conveying equipment 8. A flap valve 7 is provided on the outlet pipe of the aggregate hopper 3.

[0031] By setting a weighing mechanism with an aggregate hopper 3, it is possible to measure the cumulative discharge amount of one set of material tanks in a pot furnace over a fixed period of time, thereby obtaining more accurate production data for the pot furnace and solving the problem in traditional metering where only instantaneous flow rates can be obtained, resulting in a relatively high error rate in the calculated data. By sending the data of the weighing module 5 to the control cabinet 9, the metering value can be obtained in real time, improving the automation level of metering compared to the traditional method of manually collecting data and then collating and reporting it. Moreover, regardless of the number of sets of material tanks in the pot furnace, a metering system only needs to be installed corresponding to one set of material tanks.

[0032] More specifically, the rigid connection between the aggregate hopper 3 and the weighing module 5 is made of steel bars.

[0033] Specifically, the discharge port of the material tank is connected to the discharge machine 1, and the discharge port of the discharge machine 1 is provided with an inclined chute 2 that slopes towards the center of one set of material tanks.

[0034] By setting the inclined chute 2, the materials discharged from each discharge machine 1 can flow into the aggregate hopper 3.

[0035] Specifically, the discharge port of the inclined chute 2 and the aggregate hopper 3 are in soft connection, and the outlet pipe of the aggregate hopper 3 and the conveying equipment 8 are in soft connection.

[0036] By setting both the upper and lower ends of the aggregate hopper 3 to be in soft connection, the influence of other devices connected to the aggregate hopper 3 on weighing is eliminated, making the weighing by the weighing module 5 more accurate.

[0037] The material used for the soft connection has the characteristics of elasticity and airtightness, and the connection with the pipe is made by double pipe clamps.

[0038] Specifically, the volume of the aggregate hopper 3 is 1.5 - 2 times the total volume of the materials discharged continuously for half an hour by one set of material tanks under maximum production capacity.

[0039] By setting the volume of the aggregate hopper 3, the situation of material overflow during the measurement process is avoided.

[0040] In this embodiment, the designed single - tank production capacity of the pot furnace is 120 kg / h, one set has 4 material tanks, the discharge amount per half hour is 240 kg, and the density is taken as 750 kg / m 3 ³, the total volume is 0.32 m 3 ³. In order to ensure a relatively reasonable material level in the aggregate hopper 3 and also take into account the design space, the volume of the aggregate hopper 3 is between 0.48 - 0.64 m 3 ³.

[0041] Specifically, there are 4 weighing modules 5, and the 4 weighing modules 5 are respectively arranged directly above the four corners of the aggregate hopper 3 and connected to the four corners of the aggregate hopper 3, and the aggregate hopper 3 is in a horizontal state.

[0042] By setting 4 weighing modules 5 and their positions, the stress during weighing is ensured to be evenly distributed, and the occurrence of diagonal tension, which may cause measurement errors, is prevented, making the weighing of the aggregate hopper 3 by the weighing modules 5 more accurate. The process of obtaining a unique weighing value from the 4 weighing modules 5 is a conventional algorithm in metering, and the calculation process will not be elaborated here.

[0043] Specifically, the discharge port of the storage tank is connected to the discharging machine 1, and the weighing module 5 is installed on the steel platform 4 at the same level as the discharging machine 1.

[0044] Specifically, the flap valve 7 rotates downward along one side of the flap to be in the open state.

[0045] By setting the flap valve 7 to flip downward, it can be smoothly opened, avoiding the situation where it cannot be opened due to the pressure of the material above the flap valve 7.

[0046] Moreover, the opening and closing of the flap valve 7 are relatively slow, and after weighing, the material can slowly enter the conveying equipment 8, avoiding gravitational impact.

[0047] Specifically, the flap valve 7 is an electric valve, and the flap valve 7 is connected to the control cabinet 9.

[0048] By connecting the flap valve 7 to the control cabinet 9, the flap valve 7 can be remotely adjusted through the control cabinet 9, improving the automation level of metering.

[0049] Specifically, the control cabinet 9 is connected to the central control display screen 10 of the pot furnace, and the data of the control cabinet 9 is sent to the terminal 11 of the environmental protection department.

[0050] By connecting the control cabinet 9 to the central control display screen 10, the metering data can be monitored in real time. By sending the data to the terminal 11 of the environmental protection department, the environmental protection department can obtain the instant metering data, and based on this data, judge the actual production reduction situation of the enterprise, avoiding forced furnace shutdown in the case of missing real-time data, which may cause losses to the enterprise.

[0051] An automatic metering method for the single-tank output of a pot furnace includes the following steps: S01: The control cabinet 9 starts the single-tank output metering program; S02: Close the flap valve 7. The number of storage tanks to be weighed in a group of storage tanks is n. The discharging machines 1 connected to the n storage tanks discharge continuously, and the discharged materials accumulate in the aggregate hopper 3; S03: After discharging for half an hour, read the data a kg weighed by the weighing module 5; S04: Calculate the single-tank output as a÷n×2 kg / h; S05: Open the flap valve 7, and the material in the aggregate hopper 3 flows into the conveying equipment 8; S06: The single-tank output test is completed.

[0052] By setting a specific moving measurement method, an accurate single-tank output can be obtained.

[0053] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic metering system for the output of a single pot in a pot furnace, wherein there are several groups of material pots in the pot furnace, characterized in that, It comprises a weighing mechanism and a control cabinet (9), wherein the weighing mechanism comprises a collecting hopper (3), an outlet pipe of the collecting hopper (3) and a weighing module (5), wherein a collecting hopper (3) is provided below a group of material tanks, wherein the material tanks' discharge ports are connected to the collecting hopper (3), wherein the collecting hopper (3) is rigidly connected to the weighing module (5) so that the collecting hopper (3) is suspended below the weighing module (5), wherein the weighing module (5) is electrically connected to the control cabinet (9), and the weighing module (5) sends the weighed data to the control cabinet (9), wherein the outlet pipe of the collecting hopper (3) is vertically arranged, wherein one end is connected to the bottom of the collecting port, and the other end is connected to the conveying equipment (8), and the outlet pipe of the collecting hopper (3) is provided with a flap valve (7).

2. For a single-tank output automatic metering system of a pot furnace as described in claim 1, the discharge port of the material tank is connected to the discharging machine (1), and it is characterized in that: The discharge port of the discharge machine (1) is provided with an inclined chute (2), and the inclined chute (2) is inclined toward the center of a group of material tanks.

3. The automatic metering system for the single-tank output of a tank furnace according to claim 2, characterized in that: The discharge port of the inclined chute (2) is softly connected to the collecting hopper (3), and the outlet pipe of the collecting hopper (3) is softly connected to the conveying equipment (8).

4. The automatic metering system for the single-pot output of a pot furnace according to claim 1, characterized in that: The volume of the collecting hopper (3) is 1.5-2 times the total volume of materials discharged continuously for half an hour from a group of material tanks at maximum capacity.

5. The automatic metering system for the single-tank output of a pot furnace according to claim 1, wherein: There are four weighing modules (5), which are respectively arranged directly above the four corners of the collecting hopper (3) and connected to the four corners of the collecting hopper (3). The collecting hopper (3) is in a horizontal state.

6. For a single-tank output automatic metering system of a pot furnace as described in claim 1, the discharge port of the material tank is connected to a discharging machine (1), and it is characterized in that: The weighing module (5) is installed on a steel platform (4) on the same level as the discharge machine (1).

7. The automatic metering system for the single-tank output of a pot furnace according to claim 1, wherein: The flap valve (7) rotates downward along one side of the flap to an open state.

8. The automatic metering system for the single-tank output of a pot furnace according to claim 1, characterized in that: The flap valve (7) is an electric valve, and the flap valve (7) is connected to a control cabinet (9).

9. The automatic metering system for the single-tank output of a tank furnace according to claim 1, characterized in that: The control cabinet (9) is connected to the central control display screen (10) of the tank furnace, and the data of the control cabinet (9) is sent to the terminal (11) of the environmental protection department.

10. An automatic metering method for the single-tank output of a pot furnace, which adopts an automatic metering system for the single-tank output of a pot furnace according to any one of claims 1-9, is characterized in that, The following steps are involved: S01: the control cabinet (9) starts the single tank production measurement program; S02: the flap valve (7) is closed, the number of material tanks in a group of material tanks that need to be weighed is n, the discharge machine (1) connected to the n material tanks discharges materials continuously, and the discharged materials are accumulated in the collecting hopper (3); S03: half an hour after discharge, read the data akg measured by the weighing module (5); S04: Calculate the output of a single tank as a÷n×2kg / h; S05: Open the flap valve (7), and the materials in the collecting hopper (3) flow into the conveying device (8); S06: Single tank production test completed.

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