阅读说明：本技术 热处理炉入料仓及其控制方法及热处理炉系统 (Heat treatment furnace feeding bin, control method thereof and heat treatment furnace system ) 是由 骆有发 刘朋 申士富 李克阳 刘海营 贾海波 刘廷涛 王凯 位成林 李昭宽 于 2020-03-19 设计创作，主要内容包括：本发明涉及热处理技术领域,提供热处理炉入料仓及其控制方法及热处理炉系统。热处理炉入料仓包括：壳体,构造有入料口和下料口；上排气阀,连通壳体且用于将壳体当中的可燃气体排出；下排气阀,连通壳体且用于将壳体当中的助燃气体排出；进气阀,用于将非可燃气体注入壳体；压力表,用于监测壳体内部的气压,并根据气压控制下排气阀和进气阀的开闭；CO气体浓度测试仪和/或CO<Sub>2</Sub>气体浓度测试仪,根据气体浓度控制上排气阀开启。该热处理炉入料仓,通过下排气阀可以将壳体当中的助燃气体排出,避免炉内壁被烧损,提高炉内碳材寿命；通过上排气阀可以将壳体当中的可燃气体排出,进而避免燃爆事故的发生。(The invention relates to the technical field of heat treatment, and provides a feeding bin of a heat treatment furnace, a control method of the feeding bin and a heat treatment furnace system. The heat treatment furnace feeding bin comprises: a housing configured with a feed inlet and a feed outlet; the upper exhaust valve is communicated with the shell and is used for exhausting combustible gas in the shell; the lower exhaust valve is communicated with the shell and is used for exhausting combustion-supporting gas in the shell; an intake valve for injecting a non-combustible gas into the housing; a pressure gauge for monitoring the pressure inside the casingControlling the opening and closing of the lower exhaust valve and the air inlet valve according to the air pressure; CO gas concentration tester and/or CO 2 And the gas concentration tester controls the opening of the upper exhaust valve according to the gas concentration. The heat treatment furnace is put into a storage bin, and combustion-supporting gas in the shell can be discharged through the lower exhaust valve, so that the inner wall of the furnace is prevented from being burnt, and the service life of carbon materials in the furnace is prolonged; combustible gas in the shell can be discharged through the upper exhaust valve, and further the occurrence of explosion accidents is avoided.)

1. A heat treatment furnace feeding bin is characterized by comprising:

the shell is provided with a feeding opening and a discharging opening, the feeding opening is used for feeding the carbonaceous raw material into the bin, and the discharging opening is used for communicating with a feeding opening of the heat treatment furnace so as to introduce the carbonaceous raw material into the heat treatment furnace; the feed inlet is controlled to be switched on and off by an upper control valve, and the feed outlet is controlled to be switched on and off by a lower control valve;

the upper exhaust valve is communicated with the shell and is used for exhausting combustible gas in the shell;

the lower exhaust valve is communicated with the shell and is used for exhausting combustion-supporting gas in the shell;

an intake valve for injecting a non-combustible gas into the housing;

the pressure gauge is used for monitoring the air pressure in the shell and controlling the lower exhaust valve and the air inlet valve to open and close according to the air pressure;

CO gas concentration tester and/or CO₂A gas concentration tester for monitoring the CO gas concentration and/or CO inside the housing₂And the gas concentration controls the opening of the upper exhaust valve according to the gas concentration.

2. The charging bin of the heat treatment furnace according to claim 1, wherein the upper control valve is an upper automatic control electric valve; the lower control valve is a lower automatic control electric valve.

3. The charging bin of the heat treatment furnace as claimed in claim 1, wherein the upper exhaust valve is installed at the charging port, and the lower exhaust valve is installed at the discharging port.

4. The charging bin of the heat treatment furnace according to claim 1, wherein the bottom of the shell gradually shrinks from top to bottom to form the charging hole.

5. The control method for the charging bin of the heat treatment furnace as claimed in any one of claims 1 to 4, comprising:

controlling the upper control valve to open and the lower control valve to close so that the carbonaceous raw material is introduced into the shell of the feeding bin of the heat treatment furnace;

controlling the upper control valve to be closed and the lower exhaust valve to be opened so as to exhaust the combustion-supporting gas in the shell until the air pressure in the shell reaches a first set air pressure;

controlling the air inlet valve to be opened, and controlling the non-combustible gas to be continuously introduced into the shell and discharged through the lower exhaust valve;

controlling the lower vent valve to close so that the non-combustible gas passes into the shell;

controlling the lower control valve to open to allow the carbonaceous feedstock to fall into the heat treatment furnace until there is insufficient feedstock in the shell, controlling the lower control valve to close, and repeating all of the preceding steps.

6. A heat treatment furnace system comprising a heat treatment furnace, characterized by further comprising the heat treatment furnace charging bin of any one of claims 1 to 4.

7. The heat treatment furnace system of claim 6, wherein the non-combustible gas is nitrogen, and the heat treatment furnace input bin further comprises a nitrogen container in communication with the inlet valve for injecting the nitrogen into the shell.

8. The heat treatment furnace system according to claim 7, wherein the nitrogen gas container is provided with a heater.

9. The heat treatment furnace system according to claim 6, further comprising an electronic device including a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the method of controlling the charging bin of the heat treatment furnace according to claim 5 when executing the computer program.

10. The heat treatment furnace system of claim 6, wherein the heat treatment furnace is a graphitization furnace or an ultra-high temperature electric calcining furnace, and the carbonaceous raw material is aluminum electrolysis waste cathode or anode scrap or calcined coke or mixed material.

Technical Field

The invention relates to the technical field of heat treatment, in particular to a heat treatment furnace feeding bin, a control method thereof and a heat treatment furnace system.

Background

With the development, application expansion and technical progress of the graphitization furnace and the ultrahigh temperature electric calcining furnace, the proportion of the carbonaceous materials used in the furnace is gradually increased, so that the inner wall of the furnace is easily burnt by oxygen. Therefore, the original non-closed oxygen-insulating raw material bin cannot meet the new requirements of the graphitization furnace and the ultrahigh-temperature electric calcining furnace. On the other hand, as the carbonaceous raw material containing a small amount of adsorbed water enters the high-temperature hearth of the graphitization furnace or the ultrahigh-temperature electric calcining furnace, water gas is generated in the high-temperature hearth, and the following reactions occur in the high-temperature hearth specifically: c (carbon) + H₂O (water) ═ CO (carbon monoxide) + H₂(hydrogen gas); whereby CO and H₂The accumulation is gathered at the upper part of the closed furnace chamber. When CO and H₂When the concentration reaches a certain degree, the deflagration accident is very easy to happen, and the reaction formula that happens in the deflagration accident is as follows: 2H₂+O₂＝2H₂O；2CO+O₂＝2CO₂。

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a feeding bin of a heat treatment furnace, which can prevent oxygen from entering a high-temperature hearth and effectively prevent the inner wall of the furnace from being burnt; the water content of the raw materials entering the furnace can be reduced, and the generation of water gas is effectively reduced; and the combustible gas in the furnace can be automatically monitored and discharged, so that the occurrence of explosion accidents is avoided.

The invention also provides a control method of the feeding bin of the heat treatment furnace.

The invention also provides a heat treatment furnace system.

According to the embodiment of the first aspect of the invention, the feeding bin of the heat treatment furnace comprises:

the shell is provided with a feeding opening and a discharging opening, the feeding opening is used for feeding the carbonaceous raw material into the bin, and the discharging opening is used for communicating with a feeding opening of the heat treatment furnace so as to introduce the carbonaceous raw material into the heat treatment furnace; the feed inlet is controlled to be switched on and off by an upper control valve, and the feed outlet is controlled to be switched on and off by a lower control valve;

the upper exhaust valve is communicated with the shell and is used for exhausting combustible gas in the shell;

the lower exhaust valve is communicated with the shell and is used for exhausting combustion-supporting gas in the shell;

an intake valve for injecting a non-combustible gas into the housing;

the pressure gauge is used for monitoring the air pressure in the shell and controlling the lower exhaust valve and the air inlet valve to open and close according to the air pressure;

CO gas concentration tester and/or CO₂A gas concentration tester for monitoring the CO gas concentration and/or CO inside the housing₂And the gas concentration controls the opening of the upper exhaust valve according to the gas concentration.

According to the heat treatment furnace feeding bin disclosed by the embodiment of the invention, the combustion-supporting gas in the shell can be discharged through the lower exhaust valve, so that the inner wall of the furnace is prevented from being burnt, and the service life of carbon materials in the furnace is prolonged; combustible gas in the shell can be discharged through the upper exhaust valve, and further the occurrence of explosion accidents is avoided. In addition, non-combustible gas can be injected through the air inlet valve, and even if a small amount of combustion-supporting gas or combustible gas exists in the feeding bin of the heat treatment furnace, the non-combustible gas can be further diluted by the injection of the non-combustible gas; and the non-combustible gas is injected through the air inlet valve, so that the adsorbed water in the raw materials can be further discharged, and the explosion accident can be further avoided.

According to one embodiment of the invention, the upper control valve is an upper automatic control electric valve; the lower control valve is a lower automatic control electric valve.

According to one embodiment of the invention, the upper air vent is mounted at the inlet, and the lower air vent is mounted at the outlet.

According to an embodiment of the invention, the bottom of the shell gradually shrinks from top to bottom to form the feed opening.

According to the second aspect of the invention, the method for controlling the feeding bin of the heat treatment furnace comprises the following steps:

controlling the upper control valve to open and the lower control valve to close so that the carbonaceous raw material is introduced into the shell of the feeding bin of the heat treatment furnace;

controlling the upper control valve to be closed and the lower exhaust valve to be opened so as to exhaust the combustion-supporting gas in the shell until the air pressure in the shell reaches a first set air pressure;

controlling the air inlet valve to be opened, and controlling the non-combustible gas to be continuously introduced into the shell and discharged through the lower exhaust valve;

controlling the lower vent valve to close so that the non-combustible gas passes into the shell;

controlling the lower control valve to open to allow the carbonaceous feedstock to fall into the heat treatment furnace until there is insufficient feedstock in the shell, controlling the lower control valve to close, and repeating all of the preceding steps.

The technical effect of the control method for the feeding bin of the heat treatment furnace according to the embodiment of the invention corresponds to the technical effect of the feeding bin of the heat treatment furnace, and the detailed description is omitted here.

According to the third aspect of the invention, the heat treatment furnace system comprises the heat treatment furnace and further comprises the heat treatment furnace feeding bin.

The technical effect of the heat treatment furnace system according to the embodiment of the invention corresponds to the technical effect of the material inlet bin of the heat treatment furnace, and the details are not repeated here.

According to one embodiment of the invention, the non-combustible gas is nitrogen, and the charging bin of the heat treatment furnace further comprises a nitrogen container which is communicated with the air inlet valve and is used for injecting the nitrogen into the shell.

According to one embodiment of the invention, the nitrogen gas container is provided with a heater.

According to an embodiment of the present invention, the present invention further comprises an electronic device, the electronic device comprises a memory, a processor and a computer program stored on the memory and executable on the processor, and the processor executes the computer program to implement the method for controlling the charging bin of the thermal treatment furnace according to claim 5.

According to one embodiment of the invention, the heat treatment furnace is a graphitization furnace or an ultrahigh temperature electric calcining furnace, and the carbonaceous raw material is aluminum electrolysis waste cathode or anode scrap or calcined coke or mixed material.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a charging bin of a heat treatment furnace according to an embodiment of the present invention.

Reference numerals:

1. a feeding port; 2. an upper automatic control electric valve; 3. an upper exhaust valve; 4. a housing; 5. an intake valve; 6. a lower exhaust valve; 7. a feeding port; 8. a lower automatic control electric valve; 9. a pressure gauge; 10. CO gas concentration tester and/or CO₂Gas concentration tester.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Referring to fig. 1, the charging bin of the heat treatment furnace according to the embodiment of the invention includes a housing 4, an upper exhaust valve 3, a lower exhaust valve 6, an intake valve 5, a CO gas concentration tester, and a pressure gauge 9. The shell 4 is provided with a feeding opening 1 and a discharging opening 7, the feeding opening is used for feeding a carbonaceous raw material into a bin, and the discharging opening 7 is used for communicating with a feeding opening of the heat treatment furnace so as to introduce the carbonaceous raw material into the heat treatment furnace; the feed inlet is controlled to be switched on and off by an upper control valve, and the feed outlet is controlled to be switched on and off by a lower control valve; the exhaust valve is communicated with the shell 4, and comprises an upper exhaust valve 3 and a lower exhaust valve 6, wherein the upper exhaust valve 3 is mainly used for exhausting combustible gas in the shell 4, and the lower exhaust valve 6 is mainly used for exhausting combustion-supporting gas in the shell 4; an intake valve 5 for injecting a non-combustible gas into the housing 4; the pressure gauge 9 is used for monitoring the air pressure inside the shell 4 and controlling the lower exhaust valve 6 and the air inlet valve 5 to open and close according to the air pressure; CO gas concentration tester and/or CO₂The gas concentration tester 10 is used for monitoring the concentration of CO gas (CO is included in the water gas, so the same effect can be achieved by monitoring the concentration of the water gas) and/or CO inside the housing 4₂Gas concentration, and opening and closing interlocked with the upper exhaust valve 3, the aboveThe water gas concentration inside the housing 4 is always controlled within a very safe range.

According to the heat treatment furnace feeding bin disclosed by the embodiment of the invention, the combustion-supporting gas in the shell 4 can be discharged through the lower exhaust valve 6, so that the inner wall of the furnace is prevented from being burnt, and the service life of carbon materials in the furnace is prolonged; combustible gas in the shell 4 can be discharged through the upper exhaust valve 3, and further explosion accidents are avoided. In addition, can pour into non-combustible gas through admission valve 5, and then even there is a small amount of combustion-supporting gas or the existence of combustible gas in the heat treatment furnace income feed bin, the injection of non-combustible gas also can be further diluted it to inject non-combustible gas through the admission valve and can make the adsorbed water in the raw materials further discharged, and then stop the emergence of detonation accident.

Wherein, the upper control valve and the lower control valve are used for coordinating the raw material warehousing, the gas exhaust in the warehouse and the charging of the baiting of the raw material in the warehouse; the raw material warehousing, exhausting and charging operation substantially comprises the following steps:

closing the lower control valve, opening the upper control valve, and quickly warehousing and filling the raw materials;

closing the upper control valve, and opening the lower exhaust valve to exhaust the combustion-supporting gas in the shell;

then, opening an air inlet valve to introduce hot non-combustible gas, so that the adsorbed water and the combustion-supporting gas in the raw materials are further discharged;

closing the lower exhaust valve, continuously introducing hot non-combustible gas, opening the lower control valve, and allowing the raw materials to fall into the heat treatment furnace;

when the raw material in the shell is insufficient (for example, the raw material in the shell is less than 10%), the lower control valve is automatically closed, and the raw material is stopped from falling into the furnace;

all the steps are repeated.

Taking the treatment of the aluminum electrolysis waste cathode as an example, when oxygen enters the heat treatment furnace through the feeding bin of the heat treatment furnace, the oxygen reacts with the graphite positive electrode in the furnace and the furnace wall carbon material to form 2C + O₂2CO, thereby shortening the service life of the electrode and the furnace wall carbon material; the raw material contains a small amount of moisture, including the adsorbed water of the raw material, the crystal water in the impurities and the moisture in the air, and the moisture is generated when the raw material enters the heat treatment furnaceRaw water gas (C + H)₂O＝H₂+ CO), wherein H₂And CO is combustible gas, and the explosion accident is very easy to occur when the concentration of the combustible gas reaches a certain degree.

According to an embodiment of the invention, the CO gas concentration tester and/or the CO₂The concentration tester 10 refers to: can separately detect CO concentration and CO₂Two concentration testers, or can detect CO concentration and CO simultaneously₂Concentration is measured by a tester.

The CO gas concentration tester is arranged on the shell 4 and can detect the concentration of CO in the shell 4, and the value obtained by the CO gas concentration tester is interlocked with the upper exhaust valve 3 to control the opening or closing of the upper exhaust valve 3. When the concentration of CO in the shell 4 exceeds the first concentration value, a certain amount of CO and H is indicated₂The upper exhaust valve 3 interlocked at the moment is automatically opened to enrich CO and H in the bin₂Discharging; when the concentration of CO in the shell 4 is lower than the second concentration value, indicating that the concentration of CO and H in the bin₂The concentration is extremely low, and the upper exhaust valve 3 is closed automatically.

For the same reason, CO₂A gas concentration tester is mounted on the housing 4 and can detect CO in the housing 4₂Concentration of (C), CO₂CO measured by gas concentration tester₂The concentration is used for guiding and checking the oxygen-isolating seal of the control shell and the furnace body.

Of course, in addition to monitoring CO concentration or CO within the housing 4₂The concentration of hydrogen within the housing 4 may also be monitored.

In the embodiment of the present invention, when the concentration of CO in the casing 4 exceeds the first concentration value, or when CO is present in the casing 4₂When the concentration of (2) is lower than a second concentration value, the opening of the upper exhaust valve 3 is automatically controlled to open CO and H in the shell 4₂Gas discharge, and CO, H₂The upper exhaust valve 3 is automatically closed after the gas is exhausted, so that the occurrence of deflagration accidents is avoided.

According to the embodiment of the invention, the exhaust valve comprises an upper exhaust valve 3 arranged at the material inlet 1 and a lower exhaust valve 6 arranged at the feed opening 7. In this case, the upper vent valve 3 and the lower vent valve 6 are both convenient to assemble and disassemble. Of course, the number and distribution of the exhaust valves are not limited by fig. 1, as long as the gas in the housing 4 can be exhausted.

Referring to fig. 1, a feeding pipe is formed at the upper part of a housing 4, and the feeding pipe is provided with a feeding port 1; a feed pipe is formed at the lower part of the housing 4, and a feed opening 7 is formed at the feed pipe. Wherein, the bottom of the shell 4 is gradually contracted from top to bottom to form a feed opening 7, so that all raw materials can be ensured to enter the heat treatment furnace through the shell 4, and the raw materials are prevented from being accumulated at the bottom of the heat treatment furnace.

In the embodiment of the invention, the upper control valve is an upper automatic control electric valve 2 arranged at the material inlet 1, and the carbonaceous raw material is controlled to enter the material inlet bin of the heat treatment furnace through the upper automatic control electric valve 2. In addition, the lower control valve is a lower automatic control electric valve 8 arranged at the feed opening 7, and the carbonaceous raw material is controlled to fall into the heat treatment furnace through the lower automatic control electric valve 8; the upper automatic control electric valve 2 and the lower automatic control electric valve 8 are opened and closed and are mainly used for coordinating raw material warehousing, bin exhaust and raw material charging after exhaust.

According to an embodiment of the present invention, a method for controlling a charging bin of a heat treatment furnace is provided, and specifically, a method for controlling charging, exhausting and charging of a heat treatment furnace includes:

s1, closing the feed opening 7 through a lower control valve, opening the feed opening 1 through an upper control valve, and controlling the carbonaceous raw material to be rapidly loaded into the shell 4 of the feed bin of the heat treatment furnace;

s2, controlling the upper control valve to close the inlet 1, and controlling the lower vent valve 6 to open to control the combustion-supporting gas in the shell 4 to be discharged until the gas pressure in the shell 4 reaches a first set gas pressure;

s3, controlling the air inlet valve 5 to be opened, and controlling the non-combustible gas to be introduced into the shell 4;

s4, controlling the lower exhaust valve 6 to be closed, and controlling the non-combustible gas to be continuously introduced into the shell 4;

and S5, controlling the lower control valve to open so that the carbonaceous raw material falls into the heat treatment furnace until the raw material in the shell 4 is insufficient, and controlling the lower control valve to close.

The previous steps S1-S5 are repeated.

In S1, the feed opening 7 is controlled to be closed and the feed opening 1 is controlled to be opened, and the carbonaceous raw material is controlled to be introduced into the shell 4 of the heat treatment furnace until the carbonaceous raw material reaches a set amount. The carbonaceous material may be an aluminum electrolysis waste cathode, or may be other types of carbonaceous materials.

In S2, the feeding port 1 is controlled to be closed and the lower vent valve 6 is controlled to be opened, and the combustion-supporting gas in the housing 4 is controlled to be discharged until the air pressure in the housing 4 reaches a first set air pressure, and the lower vent valve 6 is controlled to be closed. For example, the first set pressure may be between-30 Pa and-50 Pa, and most of the combustion-supporting gas (oxygen) originally in the feeding bin of the heat treatment furnace is discharged, so as to primarily ensure the oxygen insulation requirement of the heat treatment furnace. Of course, other values of the first set pressure may be selected, as long as not too much unnecessary power is wasted on the basis of ensuring that most of the oxygen is discharged.

In addition, in S2, the adsorbed water in the storage bin of the heat treatment furnace can be extracted while the combustion-supporting gas is discharged, and the amount of the adsorbed water entering the heat treatment furnace can be reduced as much as possible.

In S3, the intake valve 5 is opened, and the non-combustible gas can be injected into the housing 4. Furthermore, even if a small amount of oxygen is left in the feeding bin of the heat treatment furnace, the oxygen can be further diluted by injecting non-combustible gas. The non-combustible gas may be nitrogen, an inert gas, or any other non-combustible gas as long as no combustion reaction occurs after the non-combustible gas is introduced into the heat treatment furnace.

In S3, the lower exhaust valve 6 may be closed at the same time as the intake valve 5 is opened, that is, the lower exhaust valve 6 may be closed in advance before step S4. In this case, the gas pressure in the housing 4 may be monitored while injecting the non-combustible gas into the housing 4, for example, the gas injection may be stopped when the gas pressure in the housing 4 reaches a second set gas pressure, which may be between 10Pa and 50Pa, or other suitable gas pressure values may be selected, as long as the purpose of diluting oxygen is achieved without wasting too much unnecessary power, and then the gas inlet valve 5 is closed.

And S4, controlling the lower exhaust valve 6 to be closed, and controlling the non-combustible gas to be continuously introduced into the shell 4 to further ensure the oxygen insulation state in the feeding bin of the heat treatment furnace, so as to avoid oxygen and further reduce the absorption water from entering the heat treatment furnace. Wherein, the non-combustible gas can be stopped from being injected when the air pressure in the shell 4 reaches a third set air pressure, the third set air pressure can be selected to be-10 Pa, and other suitable air pressure values can also be selected.

In S5, during the opening of the feeding opening 7, the carbonaceous material falls into the heat treatment furnace from the feeding bin of the heat treatment furnace. In the blanking process, the feeding bin of the heat treatment furnace can be controlled between-20 Pa and 0Pa by an induced draft fan of the heat treatment furnace. And in the blanking process, the carbon dioxide passes through the CO gas concentration tester and/or the CO gas concentration tester all the time₂The concentration tester 10 monitors the CO concentration and/or CO concentration in the feeding bin of the heat treatment furnace₂And (4) concentration. For example, when the CO gas concentration tester and the upper vent valve 3 monitor the CO concentration in the feeding bin of the heat treatment furnace in an interlocking manner, the CO concentration in the feeding bin of the heat treatment furnace can be automatically ensured to be controlled below 300ppm (parts per million concentration, and can also be set to 200ppm or 100 ppm).

In one embodiment, the present invention provides an electronic device, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and the processor executes the computer program to implement the method for controlling the charging bin of the thermal treatment furnace as described above.

According to the embodiment of the invention, the thermal treatment furnace system comprises a thermal treatment furnace and a feeding bin of the thermal treatment furnace, wherein the feeding bin of the thermal treatment furnace is communicated with the feeding hole 7.

The heat treatment furnace system has a simple structure, is full in oxygen isolation and can obviously prolong the service life of carbon materials; in addition, the heat treatment furnace system can greatly reduce the generation of water gas and prevent and control the burning explosion of the water gas, and is safe and reliable.

In one embodiment, the heat treatment furnace system further comprises a nitrogen gas container in which nitrogen gas as a non-combustible gas is stored, the nitrogen gas container being communicated with the gas inlet valve 5, and the nitrogen gas can be injected into the housing 4 by controlling the opening of the gas inlet valve 5.

In one embodiment, the nitrogen container is provided with a waste heat heater, so that hot nitrogen is introduced into the feeding bin of the heat treatment furnace, and the amount of adsorbed water is reduced and the adsorbed water is discharged outside after the hot nitrogen is introduced into the feeding bin of the heat treatment furnace.

In one embodiment, a thermal processing furnace system of an embodiment of the present invention includes the above-described electronic device. Specifically, the electronic device comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, and the processor executes the computer program to realize the control method of the feeding bin of the heat treatment furnace.

In one embodiment, in the heat treatment furnace system of the embodiment of the present invention, the heat treatment furnace is a graphitization furnace or an ultra-high temperature electric calcining furnace, and the carbonaceous raw material is an aluminum electrolysis waste cathode or anode scrap or calcined coke or a mixed material.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.