CN211496956U - Tubular carbonization and activation integrated furnace - Google Patents
Tubular carbonization and activation integrated furnace Download PDFInfo
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- CN211496956U CN211496956U CN202020114638.9U CN202020114638U CN211496956U CN 211496956 U CN211496956 U CN 211496956U CN 202020114638 U CN202020114638 U CN 202020114638U CN 211496956 U CN211496956 U CN 211496956U
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Abstract
The utility model provides a tubular carbonization-activation integrated furnace, which comprises a furnace body, a steel blanking pipe fixed in the furnace body along the vertical direction and a boiler for providing steam for the blanking pipe, wherein the blanking pipe is divided into a carbonization section, a carbonization preheating section, an activation section and a cooling section from top to bottom; a discharger is arranged below the cooling section; the furnace body is also provided with a flue gas pipeline which passes through the furnace body. The utility model provides an advantage lies in: the steel pipe is used as a reaction space, the heating is fast, and the heat consumed by opening the furnace is obviously reduced; the carbonization and activation effect of the materials in one step is realized in the blanking pipe, so that the production efficiency is improved; after the furnace is opened, the combustion of the volatile matters in the furnace body is utilized to provide heat for the whole system, and simultaneously, the preheating of combustion flue gas is utilized to generate steam, so that the energy utilization rate is improved.
Description
Technical Field
The utility model relates to an active carbon production facility technical field especially relates to a integrative stove of tubular carbomorphism activation.
Background
The active carbon has strong gas adsorption capacity, can effectively adsorb polluted gas, particles and the like, and is widely used in the fields of food, medicine, home furnishing, water purification and the like; the production process of the activated carbon mainly comprises two stages of carbonization and activation, wherein the carbonization stage needs to ensure that the raw material is braised and burned at high temperature in an anaerobic environment, and mainly aims at decomposing non-carbon elements, discharging volatile gas and water, improving the strength of a carbonized material and forming primary pores on the surfaces of particles; the activation is to utilize gases such as water vapor, carbon dioxide and the like to react with carbon atoms under a high-temperature anaerobic environment to dredge and enlarge pores, generate new pores, increase the porosity of the activated carbon and improve the activity.
In the prior art, a furnace body for producing activated carbon is generally built by refractory bricks, and the carbonization step and the activation step are completed separately, so that the furnace opening period is long and the waste of heat is large due to the slow temperature rise and fall of the refractory bricks; in addition, the prior carbonization and activation mainly depend on an external heat source for heating, so that more energy is consumed; meanwhile, combustible volatile matters generated in the generation process are not fully utilized, most of the combustible volatile matters are directly discharged, and the pollution to the environment is serious.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a tubular integrated furnace capable of synchronously completing two steps of carbonization and activation is provided to overcome the problems of long furnace opening period and energy waste in the prior art.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: a tubular carbonization-activation integrated furnace comprises a furnace body, a steel discharging pipe fixed in the furnace body in the vertical direction and a boiler for supplying steam to the discharging pipe, wherein a feeding mechanism for supplying materials to the upper end of the discharging pipe is arranged above the furnace body; a discharger is arranged below the cooling section; the furnace body is also provided with a flue gas pipeline which passes through the furnace body.
The steel pipe is used as a reaction space for carbonization and activation in the furnace body, heating is fast, and heat consumed during furnace opening is obviously reduced; the carbonization and activation effect of the materials in one step is realized in the blanking pipe, so that the production efficiency is improved; heating the furnace body by an external heat source to enable the furnace body to be at a working temperature, enabling materials to generate carbonization reaction in a carbonization section in sequence, generating activation reaction with steam in an activation section, enabling volatile matters to overflow from air holes in the carbonization section, a carbonization preheating section and the activation section, and enabling the volatile matters to meet air entering the furnace body from the activation section after the volatile matters overflow into the furnace body; meanwhile, the combusted flue gas enters the boiler through a flue gas pipeline to be heated to generate steam for activation reaction, so that the whole production system hardly needs to provide extra energy, the heat generated by carbonization and activation reaction of the material and the combustion heat of volatile matters are fully utilized, the pollutants in the exhausted flue gas are obviously reduced, and the later-stage flue gas treatment and utilization are facilitated; the water vapor reacts with the carbonized material in the activation section to remove a large amount of non-carbon elements, increase and enlarge the pores of the product and improve the activity of the activated carbon.
Preferably, the furnace body comprises a refractory wall, a heat insulation layer and a support wall from inside to outside in sequence.
Preferably, the flue gas duct is bent in the boiler to form a coil or tube array structure.
Preferably, a plurality of layers of fire-resistant plates fixedly matched with the furnace body are arranged in the furnace body along the vertical direction, fixing holes capable of being in interference fit with the blanking pipe are formed in the fire-resistant plates, one end of each fire-resistant plate is fixedly matched with the furnace body, the other end of each fire-resistant plate is a free end with a gap with the furnace body, and the free ends of the adjacent fire-resistant plates are staggered.
Preferably, a heating channel communicated with an external heat source is arranged on the side wall of the furnace body below the fixed end of the lowermost refractory plate.
Preferably, a partition wall for dividing the furnace body into a plurality of furnace core spaces along the length and/or width direction is arranged in the furnace body.
Preferably, be provided with the partition wall that separates the furnace body for two furnace core spaces along length direction in the furnace body, the furnace body is provided with the trunk line with the boiler intercommunication respectively with the parallel both sides of partition wall, the trunk line extends to the partition wall direction and sets up steam conduit, every steam conduit connect a set of unloading pipe along the inline, and the array orientation of a set of unloading pipe with steam conduit intercommunication is perpendicular with the partition wall.
Preferably, each steam pipeline is provided with a valve; at least one air pipeline and a flue gas pipeline are respectively arranged on two side surfaces of the furnace body parallel to the partition wall.
Preferably, the blanking pipe is uniformly provided with a plurality of layers of air holes from the carbonization section to the activation section, each layer is uniformly provided with 8 air holes, and the air holes are obliquely arranged from inside to outside upwards.
The utility model provides an integrative stove of tubular carbomorphism activation's advantage lies in: the steel pipe is used as a reaction space for carbonization and activation, the heating is fast, and the heat consumed during the furnace opening is obviously reduced; the carbonization and activation effect of the materials in one step is realized in the blanking pipe, so that the production efficiency is improved; after the furnace is opened, the combustion of the volatile matters in the furnace body is utilized to provide heat for the whole system, and simultaneously, the preheating of combustion flue gas is utilized to generate steam, so that the energy utilization rate is improved.
Drawings
FIG. 1 is a schematic view of a tubular carbonization-activation integrated furnace provided in an embodiment of the present invention;
FIG. 2 is a top view of a tubular carbonization-activation integrated furnace according to an embodiment of the present invention;
fig. 3 is a partially enlarged view of a portion a in fig. 2;
fig. 4 is a schematic view of an air hole of a tubular carbonization-activation integrated furnace according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, this embodiment provides a tubular carbonization-activation integrated furnace, which includes a furnace body 1, a steel feeding pipe 2 fixed in the furnace body 1 along a vertical direction, and a boiler (not shown) for supplying steam to the steel feeding pipe 2, a feeding mechanism (not shown) for conveying materials into the feeding pipe 2 is arranged above the furnace body 1, and the feeding mechanism can be a conveyor belt, a scraper conveyor, a dragon conveyor, or other devices for conveying the materials to the corresponding feeding pipe 2. The discharging pipe 2 is divided into a carbonization section 21, a carbonization preheating section 22, an activation section 23 and a cooling section 24 from top to bottom, air holes 25 are formed in the pipe walls corresponding to the carbonization section 21 and the activation section 23, the diameter of each air hole 25 is smaller than the diameter of a material, an air pipeline 11 is communicated with the furnace body 1 corresponding to the activation section 23, a steam pipeline 3 communicated with a boiler is arranged on the pipe body of the activation section 23, a discharger 4 is arranged below the cooling section 24, and a flue gas pipeline 12 passing through the boiler is further arranged on the furnace body 1.
The steel pipe is used as a storage space for carbonization and activation in the furnace body 1 provided by the embodiment, the heating is fast, and the heat consumed during the furnace opening is obviously reduced; the effect of one-step carbonization and activation of the materials in the blanking pipe 2 is achieved, and the production efficiency is improved; heating the furnace body 1 by an external heat source to enable the furnace body 1 to be at a working temperature, enabling materials to generate carbonization reaction in the carbonization section 21 in sequence, generating activation reaction with water vapor in the activation section 23, enabling volatile matters to overflow from the air holes 25 in the carbonization section 21, the carbonization preheating section 22 and the activation section 23, and enabling the volatile matters to encounter air entering the furnace body 1 from the activation section 23 after the volatile matters overflow into the furnace body 1, wherein the volatile matters are ignited because the temperature in the furnace body 1 is higher than the ignition point of the volatile matters, so that the furnace body 1 is kept at the working temperature by burning the volatile matters in the furnace body 1 after the furnace is started, a heat source is not required to be additionally provided, the energy consumption is reduced, and the energy utilization rate is improved; meanwhile, the flue gas after combustion enters the boiler through the flue gas pipeline 12 to be heated to generate steam for activation reaction, so that the whole production system almost does not need to additionally provide energy, the heat generated by carbonization and activation reaction of the material and the heat generated by combustion of volatile matters are fully utilized, pollutants in the discharged flue gas are remarkably reduced, and the flue gas in the later period is convenient to treat and utilize. The steam reacts with the carbonized material in the activation section 23 to remove a large amount of non-carbon elements, increase and enlarge the pores of the product and improve the activity of the activated carbon.
The upper end of furnace body 1 still is provided with storage silo 19, and the material directly falls in storage silo 19, can make the material fall in different unloading pipes naturally through the artifical material that paves, also can let the material stack naturally in storage silo 19, thereby it can fall into in all unloading pipe 2 to fill gradually the bottom surface of storage silo 19.
The material after the activation is cooled off after 24 cools off gradually in cooling zone and is opened tripper 4 collect the material can, because whole furnace body 1 is unsettled to erect relatively ground in the production, consequently can use the structure of similar funnel to accept the material of production in a plurality of unloading pipes 4, also can collect the material that every unloading pipe 2 produced respectively through the little funnel and carry the assigned position through material conveyor can, the material after the cooling of course also can directly pack, set up in tripper 4 below accept the wrapping bag or the packing box of material can.
In order to improve the waste heat utilization efficiency, the part of the flue gas pipeline 12 inside the boiler can be bent into a coil pipe or tube array structure.
With reference to fig. 2 and 3, the furnace body 1 sequentially comprises a refractory wall 13, a heat insulation layer 14 and a support wall 15 from inside to outside; the heat insulation layer 14 is preferably heat insulation pearl wool, and other heat insulation materials in the prior art can be selected; the fire-resistant wall 13 directly bears flame combustion in the furnace body 1 and protects the whole structure of the furnace body 1, and is constructed by refractory bricks in the embodiment; the heat insulation layer 12 is used for reducing heat loss in the furnace body 1 and improving the utilization rate of heat; the support wall 15 is a main support structure, and is constructed by selecting red bricks fired at high temperature in the embodiment.
A plurality of layers of refractory plates 17 matched with the blanking pipe 2 are arranged in the furnace body 1 along the vertical direction; five layers of refractory plates 17 are fixed in the furnace body 1 in a masonry mode in the embodiment, the refractory plates 17 are made of refractory materials, fixing holes (not shown) capable of being in interference fit with the periphery of the blanking pipe 2 are formed in the refractory plates 17, so that the blanking pipe 2 is fixed in the furnace body 1, meanwhile, one end of each refractory plate 17 in the length direction is fixed with the furnace body 1 in a masonry mode, the other end of each refractory plate 17 is spaced from the furnace body 1, free ends of the adjacent refractory plates 17 are arranged in a staggered mode, and accordingly the furnace body 1 is divided into six layers of spaces through which airflow flows in an S shape. Wherein the first layer is a carbonization section 21, the second layer is a carbonization preheating section 22, the third layer is an activation section 23, and the fourth to sixth layers are cooling sections 24.
A heating pipeline 18 is arranged on the side wall of the furnace body 1 corresponding to the fixed end of the fifth layer fire-resistant plate 17, when the furnace is opened, the interior of the furnace body 1 is at normal temperature, hot air is provided into the furnace body 1 through the heating pipeline 18, the hot air travels in the furnace body 1 along an air flow channel formed by the separation of the fire-resistant plate 17 so as to fully heat the furnace body 1, the flue gas pipeline 12 is arranged on the side wall of the furnace body 1 corresponding to the free end of the carbonization section 21, hot air leaves the heating boiler from the flue gas pipeline 12, the heating pipeline 18 is closed when the temperature of the furnace body 1 reaches 380-450 ℃, air is provided into the furnace body 1 through the air pipeline 11, at the moment, the material generates carbonization and activation reaction in the blanking pipe 2, volatile matters are volatilized from the air hole 25 and then are ignited in the activation section 23, the combusted hot air flows upwards along the channel separated by the fire-resistant plate 17 to heat, then leaves the furnace body 1 from the flue gas pipeline 12; in order to heat the activation section 23 sufficiently, the air pipes 11 are disposed on the side wall of the furnace body 1 corresponding to the free end of the activation section 23, and of course, a plurality of air pipes 11 may be disposed on both sides of the activation section 23 to provide a large amount of air for the furnace body 1, thereby ensuring sufficient combustion of the volatile matters of the user.
Referring to fig. 4, the feeding pipe 2 is provided with multiple layers of air holes 25 uniformly along the axial direction in the range from the carbonization section 21 to the activation section 23, each layer is provided with 8 air holes 25 uniformly, the air holes 25 are arranged in an upward inclined manner from inside to outside, the inclination angle is not strictly limited, and 45 ° is selected in the embodiment. Further, the position of the air holes 25 with adjacent heights is staggered along the circumferential direction, so that the density of volatile matters in each space in the furnace body 1 is approximately the same, and the condition that the volatile matters cannot overflow the blanking pipe 2 due to material separation is reduced.
Referring to fig. 2, a partition wall 16 is arranged in the furnace body 1 and divides the furnace body 1 into a plurality of furnace core spaces along the length or width direction, so that the whole furnace body 1 is divided into a plurality of working areas capable of working independently, different products can be processed conveniently and simultaneously or only a single furnace core space is used, and energy waste is reduced. In the embodiment, a partition wall is arranged along the length direction of the furnace body 1 to divide the furnace body 1 into two furnace core spaces; the both sides of 1 length direction of furnace body are provided with respectively the trunk line 31 with the boiler intercommunication, trunk line 31 extends to 16 directions on the partition wall and sets up steam conduit 3, every steam conduit 3 is connected a set of a plurality of unloading pipe 2 along the inline, the array orientation of a set of unloading pipe 2 with same steam conduit 3 intercommunication is perpendicular with partition wall 16, still be provided with valve 32 on every steam conduit 3 respectively, this just requires the production pace of every a set of unloading pipe 2 with same steam conduit 3 intercommunication to keep unanimous, this a set of unloading pipe 2 just can use the tripper 4 control unloading progress of same perpendicular partition wall 16, the tripper 4 that provides in this embodiment is cylinder driven telescopic tripper, during the cylinder shrink, tripper 4 is opened and is let the material descend, tripper 4 shutoff unloading pipe 2's bottom when the cylinder stretches out.
In the furnace body 1, an air duct 11 and a flue gas duct 12 are provided in each of the core spaces, respectively, while being partitioned by a partition wall 16.
The embodiment also provides a method for producing activated carbon, wherein a feeding mechanism is used for conveying raw materials to the upper end of the feeding pipe 2 above the furnace body 1, the raw materials gradually descend along the feeding pipe 2, the raw materials are subjected to a carbonization reaction in the carbonization section 21 and volatilize volatile matters from the air holes 25, the volatile matters are ignited in the carbonization preheating section 23 to provide a heat source for the furnace body 1, combustion flue gas of the furnace body 1 enters a boiler to heat hot water, and water vapor in the boiler enters the activation section 23 along the steam pipeline 3 to perform an activation reaction with the carbonized raw materials; the activated carbon enters the cooling section 24 for cooling, and the cooled activated carbon leaves the furnace body 1 from the blanking device 4.
Claims (9)
1. The utility model provides an integrative stove of tubular carbomorphism activation which characterized in that: the boiler comprises a boiler body, a steel discharging pipe fixed in the boiler body in the vertical direction and a boiler for supplying steam to the discharging pipe, wherein a feeding mechanism for supplying materials to the upper end of the discharging pipe is arranged above the boiler body, the discharging pipe is divided into a carbonization section, a carbonization preheating section, an activation section and a cooling section from top to bottom, a pipe body from the carbonization section to the activation section is provided with an air hole, the boiler body corresponding to the activation section is communicated with an air pipeline, and a steam pipeline communicated with the boiler is arranged on the pipe body of the activation section; a discharger is arranged below the cooling section; the furnace body is also provided with a flue gas pipeline which passes through the furnace body.
2. The tubular carbonization-activation integrated furnace of claim 1, characterized in that: the furnace body comprises a fire-resistant wall, a heat-insulating layer and a support wall from inside to outside in sequence.
3. The tubular carbonization-activation integrated furnace of claim 1, characterized in that: the flue gas pipeline is bent in the boiler to form a coil pipe or a tube array structure.
4. The tubular carbonization-activation integrated furnace of claim 2, characterized in that: the furnace body is internally provided with a plurality of layers of refractory plates fixedly matched with the furnace body along the vertical direction, the refractory plates are provided with fixing holes capable of being in interference fit with the blanking pipe, one end of each refractory plate is fixedly matched with the furnace body, the other end of each refractory plate is a free end with a gap with the furnace body, and the free ends of the adjacent refractory plates are staggered.
5. The tubular carbonization-activation integrated furnace of claim 4, characterized in that: and a heating channel communicated with an external heat source is arranged on the side wall of the furnace body below the fixed end of the lowermost refractory plate.
6. The tubular carbonization-activation integrated furnace of claim 1, characterized in that: and partition walls for dividing the furnace body into a plurality of furnace core spaces along the length and/or width direction are arranged in the furnace body.
7. The tubular carbonization-activation integrated furnace of claim 6, characterized in that: the utility model discloses a steam boiler, including furnace body, steam pipeline, baffle wall, steam pipeline connects a set of unloading pipe along the inline, and the array orientation of a set of unloading pipe with the steam pipeline intercommunication is perpendicular with the baffle wall that is provided with the baffle wall that separates the furnace body for two wick spaces along length direction in the furnace body, the furnace body is provided with the trunk line with the parallel both sides of baffle wall respectively, the trunk line extends the setting to the baffle wall orientation steam pipeline, every steam pipeline connects a.
8. The tubular carbonization-activation integrated furnace of claim 7, characterized in that: each steam pipeline is provided with a valve; at least one air pipeline and a flue gas pipeline are respectively arranged on two side surfaces of the furnace body parallel to the partition wall.
9. The tubular carbonization-activation integrated furnace of claim 1, characterized in that: the material discharging pipe is uniformly provided with a plurality of layers of air holes from the carbonization section to the activation section, each layer is uniformly provided with 8 air holes, and the air holes are obliquely arranged from inside to outside upwards.
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| CN202020114638.9U CN211496956U (en) | 2020-01-17 | 2020-01-17 | Tubular carbonization and activation integrated furnace |
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| CN202020114638.9U CN211496956U (en) | 2020-01-17 | 2020-01-17 | Tubular carbonization and activation integrated furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072028A (en) * | 2020-01-17 | 2020-04-28 | 淮北市洁力活性炭有限责任公司 | Tubular carbonization-activation integrated furnace and using method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111072028A (en) * | 2020-01-17 | 2020-04-28 | 淮北市洁力活性炭有限责任公司 | Tubular carbonization-activation integrated furnace and using method |
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