CN111036186A - Activated carbon activation furnace, activated carbon production equipment and activated carbon regeneration method - Google Patents
Activated carbon activation furnace, activated carbon production equipment and activated carbon regeneration method Download PDFInfo
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- CN111036186A CN111036186A CN201911344040.7A CN201911344040A CN111036186A CN 111036186 A CN111036186 A CN 111036186A CN 201911344040 A CN201911344040 A CN 201911344040A CN 111036186 A CN111036186 A CN 111036186A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/345—Regenerating or reactivating using a particular desorbing compound or mixture
- B01J20/3458—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase
- B01J20/3466—Regenerating or reactivating using a particular desorbing compound or mixture in the gas phase with steam
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/354—After-treatment
- C01B32/36—Reactivation or regeneration
- C01B32/366—Reactivation or regeneration by physical processes, e.g. by irradiation, by using electric current passing through carbonaceous feedstock or by using recyclable inert heating bodies
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/39—Apparatus for the preparation thereof
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Abstract
The invention relates to the field of activated carbon activation equipment, and discloses an activated carbon activation furnace, activated carbon production equipment and an activated carbon regeneration method. The activated carbon activation furnace comprises a furnace body with a feeding hole and a discharging hole, a cavity channel is formed in the furnace body, and the furnace body comprises a first section, a middle section and a tail section which are different. In the operating condition, the air-blower lets in useless active carbon dust in the furnace body, the impurity of mixing in useless active carbon can melt under high temperature and produce the melt, because the chamber way is not parallel with the horizontal plane and the discharge gate highly is higher than the feed inlet, the melt can receive gravity whereabouts or flow to the bottom of furnace body, the active carbon dust can continue to flow along the chamber way, thereby realize separation impurity, improve the effect of active carbon quality, and prevented that the melt that produces after the impurity is heated and melts can block up the air vent or pile up on the furnace body lateral wall when transversely setting up by a large scale.
Description
Technical Field
The invention relates to the field of activated carbon activation equipment, in particular to an activated carbon activation furnace, activated carbon production equipment and an activated carbon regeneration method.
Background
Activated carbon is a carbon with a developed pore structure, a large specific surface area and adsorption capacity. It has stable property, can resist acid and alkali, and can resist water humidity, high temperature and high pressure. Activated carbon has been widely used in many fields based on its own excellent properties, and thus there is an increasing demand for activated carbon in modern life.
If the activated carbon is discarded after being used once, the adsorbed harmful substances can cause secondary pollution, and the activated carbon resource is wasted. Therefore, the regeneration of the waste activated carbon is necessary from the viewpoint of economy and environmental protection.
If the used waste activated carbon is to be put into use again, the used waste activated carbon needs to be reactivated and regenerated, various impurities are often mixed with the used waste activated carbon, and the impurities need to be removed in the regeneration process of the activated carbon so as to improve the quality of the finished activated carbon.
Disclosure of Invention
The inventor discovers that the furnace bodies of the activation furnaces in the prior art are transversely arranged in long-term practical operation, the defect of the arrangement mode is that the air vent or the air distribution pipe can be blocked by the melt generated after the impurities in the waste activated carbon are heated and melted, if the air vent or the air distribution pipe are transversely upwards arranged, the melt can be accumulated at the bottom of the furnace body when the furnace body is transversely arranged in a large-area mode, and if the furnace body is put into production and use for the second time, the melt needs to be timely cleaned.
The invention aims to provide an activated carbon activation furnace, which can effectively remove impurities contained in waste activated carbon in the activation process, improve the quality of the activated carbon, and prevent molten matters generated after the impurities are heated and melted from blocking vent holes or accumulating on the bottom of a furnace body in a transverse arrangement in a large area.
In order to achieve the above object, a first aspect of the present invention provides an activated carbon activation furnace, which includes a furnace body having a feeding port and a discharging port, wherein a cavity is formed in the furnace body, a tail end of the cavity is connected to the discharging port, a start end of the cavity leads to a bottom of the furnace body, and the feeding port is communicated with the cavity; the furnace body comprises a first section, a middle section and a tail section, the three sections are provided with vent holes communicated with the cavity channel, and fluid can be blown into the cavity channel through the vent holes; in an operation state, the height of the discharge port is higher than that of the feed port, and the tangent lines at all points on the center line of the cavity channel are not parallel to the horizontal plane.
Through the technical scheme, in the operating condition, utilize the air-blower to let in useless active carbon dust in the furnace body, the impurity of mixing in useless active carbon can melt under high temperature and produce the fuse-element, because the chamber is said and is not parallel with the horizontal plane and the highly higher than feed inlet of discharge gate, consequently the fuse-element can receive gravity whereabouts or flow to the bottom of furnace body, the active carbon dust can continue to flow along the chamber way, thereby realize separation impurity, improve the effect of active carbon quality, and prevented that the fuse-element that the impurity produced after being heated and melting can block up the air vent or pile up on the furnace body lateral wall when transversely setting up by a large scale.
Preferably, the cavity is a linear cavity, and in an operating state, an included angle between the cavity and a horizontal plane is α;
wherein α is 90 degrees or α e [60 degrees, 120 degrees ].
Preferably, the furnace body is a linear tubular furnace body, the axis of the cavity channel coincides with the axis of the furnace body, and the cavity channel extends from the first section to the tail section.
Further, the feed inlet is arranged on the side wall of the first section.
Furthermore, the vent holes on each section are distributed at intervals along the axial direction of the furnace body, and the density of the vent holes on the first section, the middle section and the tail section is sequentially reduced.
Further, the vent holes on each section are located on the same straight line parallel to the axis of the furnace body.
Furthermore, an air distribution pipe is arranged at the position of the vent hole, and an air outlet of the air distribution pipe faces to the tangential direction of the outer circumferential surface of the furnace body.
Furthermore, the side wall of the furnace body is respectively composed of a fire-resistant layer, a heat-insulating layer and a steel plate layer from inside to outside; the fire-resistant layer is the glue precious stone layer, the insulating layer is the asbestos layer.
The invention provides active carbon production equipment, and the active carbon regeneration equipment comprises the active carbon activation furnace. This active carbon production facility can realize separating impurity, improves the effect of active carbon quality to the fuse-element that has prevented that impurity from being heated to produce after melting can block up the air vent or pile up on the furnace body lateral wall when transversely setting up by a large scale.
In a third aspect of the present invention, the activated carbon regeneration method is provided, wherein the activated carbon activation furnace is utilized, waste activated carbon dust is blown into the cavity from the feed inlet, impurities in the waste activated carbon dust are melted by high temperature, and the generated melt flows to or falls on the bottom of the furnace body.
Through above-mentioned technical scheme, can realize separating impurity, improve the effect of active carbon quality to the fuse-element that has prevented that impurity from being heated to produce after melting can block up the air vent or pile up on the furnace body lateral wall when transversely setting up by a large scale.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic structural view of a furnace body according to an embodiment of the present invention;
FIG. 2 is a schematic structural view from another perspective of the furnace body;
FIG. 3 is a schematic structural view of a furnace body from yet another perspective;
fig. 4 is a schematic structural diagram of the activated carbon activation furnace mounted on the support frame.
Description of the reference numerals
10 furnace body 11 air distribution pipe
12 fire-resistant layer 13 thermal-insulating layer
14 steel deck 15 support frame
16 inlet and 17 outlet
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.
The invention provides an activated carbon activation furnace, as shown in fig. 1 and fig. 2, the activated carbon activation furnace comprises a furnace body 10 with a feeding hole 16 and a discharging hole 17, a cavity is arranged in the furnace body 10, the tail end of the cavity is connected with the discharging hole 17, the initial end of the cavity leads to the bottom of the furnace body 10, and the feeding hole 16 is communicated with the cavity; the furnace body 10 comprises three different sections, namely a first section, a middle section and a tail section, wherein the three sections are provided with vent holes communicated with the cavity channel, and fluid can be blown into the cavity channel through the vent holes; in an operating state, the height of the discharge port 17 is higher than that of the feed port 16, and the tangent lines at all points on the center line of the cavity are not parallel to the horizontal plane.
Through the technical scheme, in the operating condition, utilize the air-blower to let in useless active carbon dust in the furnace body, the impurity of mixing in useless active carbon can melt under high temperature and produce the fuse-element, because the chamber is said and is not parallel with the horizontal plane and the highly higher than feed inlet of discharge gate, consequently the fuse-element can receive gravity whereabouts or flow to the bottom of furnace body, the active carbon dust can continue to flow along the chamber way, thereby realize separation impurity, improve the effect of active carbon quality, and prevented that the fuse-element that the impurity produced after being heated and melting can block up the air vent or pile up on the furnace body lateral wall when transversely setting up by a large scale.
In a preferred embodiment of the present invention, the cavity is a linear cavity, and in an operating state, an included angle between the linear cavity and a horizontal plane is α, wherein α is 90 ° or α e [60 °, 120 ° ], more preferably, α is set to 90 °, that is, the cavity is set to be perpendicular to the horizontal plane, so that a melt generated after melting impurities falls directly on the bottom of the furnace body 10, and the melt is accumulated at a specific position, so that the melt is intensively cleaned later.
In a preferred embodiment, the furnace body 10 is a linear tubular furnace body, the axis of the channel is coincident with the axis of the furnace body 10, the channel extends from the first section to the tail section, and the feed inlet 16 is arranged on the side wall of the first section. As understood from the above arrangement, the waste activated carbon dust and the activating agent are blown in from the side of the furnace body 10, not from the bottom of the furnace body 10. In order to control the amount of the waste activated carbon dust and the amount of the activating agent entering the furnace body from the feeding hole, a gas flow meter can be arranged at the feeding hole, or the amount of the waste activated carbon and the amount of the activating agent entering the cavity channel are controlled by a speed-regulating transmission device, and the activating agent is preferably water vapor in the embodiment of the invention because the water vapor can promote the spontaneous combustion reaction of the activated carbon in a high-temperature environment and the cost of the water vapor is low.
In the process of regenerating the activated carbon, the temperature requirements of three sections of a furnace body are different, the first section is a combustion section, and the temperature needs to be controlled to be about 1100 ℃; the middle section is an activation section, and the temperature needs to be controlled to be about 960 ℃; the tail section is a tail gas section, and the temperature needs to be controlled to be about 860 ℃. In order to control the temperature of the three sections, the vent holes on each section are distributed at intervals along the axial direction of the furnace body 10, and the density of the vent holes on the first section, the middle section and the tail section is gradually reduced. That is, the density of the vent holes on the first section is greater than that of the vent holes on the middle section, and the density of the vent holes on the middle section is greater than that of the vent holes on the tail section. Fluid (mainly water vapor) is blown into the cavity through the vent holes, and the higher the density of the vent holes is, the larger the amount of the introduced water vapor is. Since the activated carbon itself can spontaneously combust at high temperature to release heat, and the vapor can promote the spontaneous combustion reaction of the activated carbon in a high-temperature environment, the temperature of three different sections of the furnace body 10 can be effectively controlled by controlling the amount of the introduced vapor. The temperature can be measured by thermometers correspondingly arranged in each section, and the control of the water vapor introduction amount can be monitored by an air flow meter.
In an alternative embodiment, the ventilation holes in each section are located on the same line parallel to the axis of the furnace body 10. The plurality of vent holes located in the same section form two sets of vent hole groups, and the two sets of vent hole groups are rotationally symmetrical about the axis of the furnace body 10.
An air distribution pipe 11 is arranged at the air vent, and an air outlet of the air distribution pipe 11 faces to the tangential direction of the outer circumferential surface of the furnace body 10. The air blowing of air distribution pipe 11 to the chamber in through the air distribution pipe is along the tangential direction of furnace body 10 promptly, and the aim at that sets up like this for the air current in the chamber is the heliciform, and then makes useless active carbon dust spiral flow, so that useless active carbon can carry out abundant activation.
In addition, as shown in fig. 3, the side wall of the furnace body is respectively composed of a refractory layer 12, a heat insulation layer 13 and a steel plate layer 14 from inside to outside; the fire-resistant layer 12 is a rubble stone layer, and the heat-insulating layer 13 is an asbestos layer. The ruby layer can guarantee that the furnace body is not melted, the asbestos layer has the functions of heat insulation, and the steel plate layer has the function of supporting. Through the arrangement, the high-temperature furnace body 10 can bear high temperature, meanwhile, the heat in the furnace body 10 is prevented from being lost too fast, and the temperature of the outer surface of the furnace body 10 can be reduced to prevent scalding of workers.
As shown in fig. 4, the activated carbon activation furnace further includes a supporting frame 15 for supporting the furnace body 10.
The invention also provides activated carbon production equipment, which comprises the activated carbon activation furnace. So, this active carbon production facility can realize separating impurity, improves the effect of active carbon quality to the fuse-element that has prevented that impurity from being heated to produce after melting can block up the air vent or pile up on the furnace body lateral wall when transversely setting up by a large scale.
The invention also provides an activated carbon regeneration method, which utilizes the activated carbon activation furnace, and the waste activated carbon dust is blown into the cavity channel from the feed inlet 16, impurities in the waste activated carbon dust are melted through high temperature, and the generated melt flows to or falls on the bottom of the furnace body 10. So, at the in-process of activation, the impurity of mixing in useless active carbon can melt under high temperature and produce the melt, because chamber way and ground are perpendicular, consequently the melt can receive gravity whereabouts or flow to the bottom of furnace body, the active carbon dust can continue to flow along the chamber way to realize separation impurity, improve the effect of active carbon quality, and prevented that the melt that the impurity produced after being heated and melted can block up the air vent or pile up on the furnace body lateral wall when transversely setting up by a large scale.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The activated carbon activation furnace is characterized by comprising a furnace body (10) with a feeding hole (16) and a discharging hole (17), wherein a cavity is formed in the furnace body (10), the tail end of the cavity is connected with the discharging hole (17), the initial end of the cavity is communicated with the bottom of the furnace body (10), and the feeding hole (16) is communicated with the cavity; the furnace body (10) comprises three different sections, namely a first section, a middle section and a tail section, wherein the three sections are provided with vent holes communicated with the cavity channel, and fluid can be blown into the cavity channel through the vent holes; in an operating state, the height of the discharge hole (17) is higher than that of the feed hole (16), and the tangent lines at all points on the center line of the cavity are not parallel to the horizontal plane.
2. The activated carbon activation furnace of claim 1, wherein the cavity is a linear cavity, and in the operating state, an included angle between the cavity and the horizontal plane is α;
wherein α is 90 degrees or α e [60 degrees, 120 degrees ].
3. The activated carbon activation furnace according to claim 2, wherein the furnace body (10) is a linear tubular furnace body, and the axis of the cavity coincides with the axis of the furnace body (10), and the cavity extends from the first section to the tail section.
4. The activated carbon activation furnace of claim 3, wherein the feed inlet (16) is provided in a side wall of the head section.
5. The activated carbon activation furnace according to claim 3, wherein the vent holes on each section are distributed at intervals along the axial direction of the furnace body (10), and the density of the vent holes on the first section, the middle section and the tail section is decreased in sequence.
6. The activated carbon activation furnace according to claim 5, wherein the vent holes of each segment are located on the same line parallel to the axis of the furnace body (10).
7. The activated carbon activation furnace according to claim 3, wherein a distribution pipe (11) is arranged at the vent hole, and the air outlet of the distribution pipe (11) faces the tangential direction of the outer circumferential surface of the furnace body (10).
8. The activated carbon activation furnace according to claim 1, wherein the side wall of the furnace body (10) is composed of a refractory layer (12), a thermal insulation layer (13) and a steel plate layer (14) from inside to outside; the fire-resistant layer (13) is a ruby stone layer, and the heat-insulating layer (13) is an asbestos layer.
9. An activated carbon production apparatus, characterized in that the activated carbon regeneration apparatus comprises the activated carbon activation furnace of any one of claims 1 to 8.
10. A method for regenerating activated carbon, characterized in that the activated carbon activation furnace according to any one of claims 1 to 8 is used, waste activated carbon dust is blown into the cavity from the feed port (16), impurities in the waste activated carbon dust are melted by high temperature, and the resultant melt flows toward or falls on the bottom of the furnace body (10).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911344040.7A CN111036186A (en) | 2019-12-24 | 2019-12-24 | Activated carbon activation furnace, activated carbon production equipment and activated carbon regeneration method |
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| CN201911344040.7A CN111036186A (en) | 2019-12-24 | 2019-12-24 | Activated carbon activation furnace, activated carbon production equipment and activated carbon regeneration method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112138640A (en) * | 2020-09-25 | 2020-12-29 | 衢州市蓝天环保节能设备厂 | Rotary regeneration furnace, activated carbon particle regeneration equipment and activated carbon particle regeneration method |
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| US5406582A (en) * | 1993-08-03 | 1995-04-11 | Du Plessis; Cornelius | Apparatus and process for activation and reactivation of carbon by electrical resistance heating in the presence of steam |
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| CN201525753U (en) * | 2009-10-21 | 2010-07-14 | 张本忠 | Activated carbon stand sleeve spiral fluidized furnace |
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2019
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| CN101357327A (en) * | 2007-07-30 | 2009-02-04 | 项缙农 | Regeneration method and device of waste powdered activated carbon rotary fluidization |
| CN201525753U (en) * | 2009-10-21 | 2010-07-14 | 张本忠 | Activated carbon stand sleeve spiral fluidized furnace |
| CN102502625A (en) * | 2011-10-25 | 2012-06-20 | 杭州星宇炭素科技有限公司 | Method for producing activated carbon and byproduct of gas in single-step mode by using rotary activation furnace with sawdust |
| CN107282027A (en) * | 2017-07-13 | 2017-10-24 | 江西长远科技有限公司 | A kind of quick flow activation furnace activated carbon regenerating equipment and its technique |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112138640A (en) * | 2020-09-25 | 2020-12-29 | 衢州市蓝天环保节能设备厂 | Rotary regeneration furnace, activated carbon particle regeneration equipment and activated carbon particle regeneration method |
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