CN211496955U

CN211496955U - Porous slot type carbonization and activation integrated furnace

Info

Publication number: CN211496955U
Application number: CN202020114628.5U
Authority: CN
Inventors: 刘明贯; 徐敬东; 管家乡
Original assignee: Huaibei City Jieli Activated Carbon Co ltd
Current assignee: Huaibei City Jieli Activated Carbon Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-09-15
Anticipated expiration: 2030-01-17

Abstract

The utility model provides a porous groove type carbonization and activation integrated furnace, which comprises a furnace body and at least one product line, wherein the product line comprises a feeding hole arranged above the furnace body, at least one vertical blanking groove positioned in the furnace body and a material receiving mechanism matched with the blanking groove; the feeding trough is formed by enclosing a furnace body and a porous wall connected with the furnace body, and the porous walls of adjacent feeding troughs are arranged at intervals to form a vertical air passage; the porous wall is provided with air holes, and the air passage is sequentially divided into a carbonization section, a carbonization preheating section and an activation section; an air pipeline is communicated with the air passage of the activation section, and a water vapor pipeline is communicated with the blanking groove of the activation section. The utility model provides an integrative stove of porous slot type carbomorphism activation's advantage lies in: the volatile matter is combusted in the air passage to provide heat for the furnace body, an additional heat source is not needed, and the energy consumption and the tail gas emission are reduced; the activated carbon of different raw materials can be processed simultaneously by configuring a plurality of product lines, and the efficiency is obviously improved.

Description

Porous slot type carbonization and activation integrated furnace

Technical Field

The utility model relates to an active carbon production facility technical field especially relates to a porous slot type carbomorphism activation integrative stove.

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, the carbonization step and the activation step are generally processed separately, so that a conveying belt or an auger is needed to convey carbonized high-temperature materials, a conveying mechanism is easily damaged, air enters a material space, the oxygen content is increased, and the product quality is influenced; in addition, volatile gas generated by carbonization is mainly discharged in a tail gas mode, and water vapor required by activation needs additional energy for heating, so that environmental pollution and energy waste are caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a porous slot type carbonization and activation integrated furnace which can synchronously complete two steps of carbonization and activation and reduce energy consumption is provided.

The utility model discloses a solve above-mentioned technical problem through following technical scheme: a porous groove type carbonization-activation integrated furnace comprises a furnace body and at least one product line, wherein the product line comprises a feeding hole arranged above the furnace body, at least one vertical blanking groove arranged in the furnace body and a material receiving mechanism matched with the blanking groove;

the discharging trough is formed by enclosing a furnace body and a porous wall connected with the furnace body, air holes for upwards leading volatile matters in the discharging trough are formed in the porous wall, and the porous walls of adjacent discharging troughs are arranged at intervals to form vertical air passages; the air flue is divided into a carbonization section, a carbonization preheating section and an activation section from top to bottom in sequence; and the air passage corresponding to the activation section is communicated with an air pipeline, and the discharging groove corresponding to the activation section is communicated with a water vapor pipeline.

The porous groove type carbonization-activation integrated furnace provided by the application uses the porous wall to enclose and form the blanking groove and the air passage, the sizes of the blanking groove and the air passage can be conveniently adjusted according to the type of a processed product, and the conditions of blocking and coking of the product can be avoided in the production process; in the embodiment, the carbonization and activation processes are completed in the feeding groove in a centralized manner, an external heating source is needed to heat the furnace body to the working temperature when the carbonization and activation process is used, the raw materials enter the feeding groove through the feeding opening, the materials are firstly positioned at the height of the feeding groove corresponding to the carbonization section, and volatile matters in the carbonized materials volatilize from air holes and enter the air passage, so that the materials are preliminarily molded and a pore structure is obtained; then the material is lowered to the height of a discharging groove corresponding to the carbonization preheating section; volatile matters in the carbonization preheating section and the activation section continuously overflow into the air passage, and finally the volatile matters are ignited when encountering air at the activation section, so that a heat source is provided for the whole furnace body, an external heat source is not needed, and the equipment cost, the energy cost and the environmental pollution are reduced; the final material is subjected to pore expansion under the action of water vapor at the activation section, so that the activity of the product is improved; most non-carbon elements are removed, the specific surface area is improved, and simultaneously the combustible gas generated by activation can further burn the heating furnace body in the air flue; and collecting the activated product through a material collecting mechanism.

Preferably, the furnace body comprises a refractory wall, a heat insulation layer and a support wall from inside to outside in sequence.

Preferably, the side of the furnace body is provided with a first lifting auger, a discharge port at the upper end of the first lifting auger is provided with a first horizontal auger positioned above the furnace body, and the first horizontal auger is communicated with a feed port of one or more product lines.

Preferably, the feeding port is communicated with a plurality of discharging troughs of the same product line, a discharging hopper which is in a funnel-shaped structure along the end surface of the porous wall is arranged at the upper end of each discharging trough, and the upper ends of adjacent inclined planes of adjacent discharging hoppers are fixed to form a triangular structure.

Preferably, the porous wall is made of porous bricks, and the air holes are inclined straight holes.

Preferably, the bottom of the blanking groove is provided with a discharger capable of plugging the blanking groove, and the material receiving mechanism comprises a cooling bin arranged below the discharger.

Preferably, the receiving mechanism is still including setting up in the second horizontal auger that cools off the storehouse below and the storehouse intercommunication of cooling, promote the auger with the discharge end complex second of the horizontal auger of second, promote the third horizontal auger of the discharge end complex of auger with the second, third horizontal auger intercommunication finished product storehouse.

Preferably, the third horizontal packing auger is further communicated with a plurality of transition bins corresponding to each product line, the bottoms of the transition bins are communicated with the fourth horizontal packing auger, the discharge end of the fourth horizontal packing auger is connected with the third lifting packing auger, and the discharge end of the third lifting packing auger is communicated with the finished product bins.

The utility model provides an integrative stove of porous slot type carbomorphism activation's advantage lies in: the volatile matter is combusted in the air passage to provide heat for the furnace body, an additional heat source is not needed, the energy consumption and the tail gas emission are reduced, the carbonization and activation steps are synchronously realized, the pore-forming and hole-expanding capability is strong, and the product activity is improved; the activated carbon of different raw materials can be processed simultaneously by configuring a plurality of product lines, and the efficiency is obviously improved.

Drawings

Fig. 1 is a schematic view of a porous trough type carbonization and activation integrated furnace provided in an embodiment of the present invention;

fig. 2 is a schematic product line diagram of a porous trough type carbonization and activation integrated furnace provided by an embodiment of the present invention;

FIG. 3 is a top view of a multi-hole trough type carbonization and activation integrated furnace according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion A of FIG. 2;

fig. 5 is a schematic view of an optional air hole structure of the multi-hole groove type carbonization and activation integrated furnace according to the 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, the present embodiment provides a porous trough type carbonization and activation integrated furnace, which includes a furnace body 1 and at least one product line (not shown in the figure), and with reference to fig. 2, the product line includes a feeding port 2 disposed above the furnace body 1, at least one vertical blanking trough 3 located inside the furnace body 1, and a material receiving mechanism (not shown in the figure) matched with the blanking trough 3;

referring to fig. 3, the feeding chute 3 is formed by combining the inner wall of the furnace body 1 and a porous wall 31 connected with the inner wall of the furnace body 1, and referring to fig. 4, the porous wall 31 is provided with an air hole 311 for guiding the volatile matters in the feeding chute 3 upwards, and the volatile matters comprise combustion products such as steam, combustible gas, tar and the like; referring to fig. 2 again, the porous walls 31 of adjacent blanking chutes 3 are arranged at intervals to form vertical air passages 4; the air passage 4 is divided into a carbonization section 41, a carbonization preheating section 42 and an activation section 43 from top to bottom in sequence, the air passage 4 corresponding to the activation section 42 is communicated with an air pipeline 45, and the blanking groove 3 corresponding to the activation section 43 is communicated with a water vapor pipeline 46.

The porous groove type carbonization-activation integrated furnace provided by the embodiment uses the porous wall to enclose and form the feeding groove 3 and the air passage 4, the sizes of the feeding groove 3 and the air passage 4 can be conveniently adjusted according to the type of a processed product, and the situation that the product is blocked and coked in the processing process is avoided; this embodiment is concentrated on carbonization and activation technology and is accomplished in silo 3 down, needs external heating source heating furnace body 1 to operating temperature when using, the external heating source can be directly in 1 bottom burning of furnace body, also can carry 4 bottoms of air flue of furnace body 1 with steam through the pipeline to the efficient heats furnace body 1, and after the heating is accomplished, it can to remove outside heat source. The raw materials enter the blanking groove 3 through the feeding port 2, the materials are firstly positioned at the height of the blanking groove 3 corresponding to the carbonization section 41, the materials are carbonized in a high-temperature anaerobic environment, and volatile matters volatilize from the air holes 311 and enter the air passage 4, so that the materials are preliminarily molded and a pore structure is obtained; then the material is lowered to the height of the blanking groove 3 corresponding to the carbonization preheating section 42, and volatile matters in the carbonization preheating section 42 and the activation section 43 continuously overflow into the air passage 4, and the volatile matters meet the air at the activation section 43 and are ignited, so that a heat source is provided for the whole furnace body 1, the furnace body 1 does not need an external heating source in normal work, the energy utilization rate is effectively improved, and the production cost is reduced; meanwhile, the combustion tail gas can be led out through a pipeline and heated by using waste heat to generate water vapor for activation. The final material reacts with the water vapor at the activation section 43 to expand the pores, so that the activity of the product is improved, non-carbon elements are reacted to generate pores, the specific surface area is improved, and combustible gas generated by activation can further burn the heating furnace body in the air passage 4; the activated product is collected by the material receiving mechanism, and the carbonization and activation process period is long, so that the material receiving mechanism needs to release the activated material on the lower layer at regular intervals, and the material at the material inlet 2 gradually enters the discharging groove 3.

Referring to fig. 3, the furnace body 1 comprises a refractory wall 11, a heat insulation layer 12 and a support wall 13 in sequence from inside to outside; the heat insulation layer 12 is preferably heat insulation pearl wool, and other heat insulation materials in the prior art can be selected; the fire-resistant wall 11 directly bears flame combustion in the air flue 4 to protect the whole furnace body 1 structure, 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 13 is a main support structure, and is constructed by selecting red bricks fired at high temperature in the embodiment.

Referring to fig. 1, the side of the furnace body 1 is provided with a first lifting auger 51, a discharge outlet at the upper end of the first lifting auger 51 is provided with a first horizontal auger 52 for receiving materials conveyed by the first lifting auger 51, and the first horizontal auger 52 is communicated with a feed inlet 2 of one or more product lines. Therefore, the conveying work of the materials from the ground to the blanking groove 3 is realized, if a plurality of different raw materials are required to be processed simultaneously, a plurality of groups of first lifting packing augers 51 and first horizontal packing augers 52 are required to be matched with different product lines respectively for production operation, the same set of first lifting packing augers 51 and second horizontal packing augers 52 can be used, the same materials are conveyed to the corresponding feeding ports 2 completely and stored, other materials are conveyed to the corresponding feeding ports 2, and the connection positions of the feeding ports 2 and the first horizontal packing augers 52 are required to be provided with the feeding valves 21 for controlling the on-off.

With reference to fig. 2, the material inlet 2 is connected to a plurality of material discharge slots 3 of the same product line, but it is also possible to connect each material inlet 2 to each material discharge slot 3, which is similar to the structure and operation of a product line with only one material discharge slot 3. The end surfaces of the porous walls 31 at the two sides of the upper end of each blanking groove 3 are provided with blanking hoppers 22 in a funnel-shaped structure, the upper ends of the adjacent inclined surfaces 23 between the adjacent blanking hoppers 22 are fixed to form an approximately triangular structure, thereby ensuring that the materials can only enter the blanking groove 3 through the blanking hopper 22, the blanking groove 3 close to the position where the feeding port 2 is communicated with the first horizontal auger 52 can be advanced with the materials, the corresponding blanking groove 3 can enter the adjacent other blanking grooves 3 after overflowing, since most raw materials are accumulated in the feeding port 2 during the production of the activated carbon, the situation has no influence on the actual production, but in order to ensure that the distribution of the materials in each blanking groove 3 is roughly equal, at the feed end of the inlet 2, means for distributing the material can be provided, for example, pipes leading to different discharge chutes 3 can be led out in a certain circumference of the circular hopper, in which case the provision of the discharge hopper 22 can also be dispensed with.

The porous wall 31 is built by porous bricks; referring to fig. 4 and 5, in order to prevent the material from blocking the air hole 311, the air hole 311 generally needs to be kept rising from the feeding chute 3 to the air passage 4, and since volatile components include easily condensable components such as tar, and it is necessary to keep the speed of the volatile components when the volatile components volatilize in order to prevent the volatile components from coagulating, the air hole 311 is generally provided as a straight hole as shown in fig. 4, and the volatile components are prevented from hitting the hole wall of the air hole 311 and causing a speed reduction. The application further provides the scheme of the curved air hole 311 shown in fig. 5, wherein the curved air hole comprises two circular arcs with two ends respectively positioned on one side of the discharging groove 3 and one side of the air passage 4, the other ends of the two circular arcs are tangent so that impact cannot occur when volatile matters do arc motion, and meanwhile, larger acceleration is provided by means of a curve, larger impact force is obtained, and the possibility of coking is reduced.

Referring to fig. 2 again, it has been said that the time of the whole production process is long, and the processed activated carbon needs to be released at certain time intervals, in this embodiment, an unloader 32 capable of plugging the blanking tank 3 is arranged at the bottom of the blanking tank 3, and in addition, because the temperature of the activated material is high, in order not to damage subsequent production facilities, a cooling bin 61 of a material receiving mechanism is arranged below the unloader 32, and the material is cooled in the cooling bin 61 and then is subjected to the next transportation and packaging work; the discharger 32 can use a cylinder to drive a polished rod, release and block the blanking 3 through the pulling action of the polished rod driven by the cylinder, and also can use a rotating mode to realize blocking and releasing, and the automatic cylinder discharger is selected and used in the embodiment.

Referring to fig. 1 again, the receiving mechanism further includes a second horizontal packing auger 62 disposed below the cooling bin 61 and communicated with the cooling bin 61, a second lifting packing auger 63 matched with the discharge end of the second horizontal packing auger 62, and a third horizontal packing auger 64 matched with the discharge end of the second lifting packing auger 63, wherein the third horizontal packing auger 64 can be directly communicated with a finished product bin 65.

Because the integrative stove of carbomorphism activation that this embodiment provided can the simultaneous processing multiple different active carbon raw materials, also hope to realize the collection of multiple material through less transmission system when it receives the material, a plurality of transition bins 66 are connected respectively to third horizontal auger 64 in this embodiment, and corresponding transition bin 66 is kept in temporarily can be carried to different materials, and the bottom of a plurality of transition bins 66 communicates fourth horizontal auger 67, the discharge end of fourth horizontal auger 67 communicates third promotion auger 68, and the discharge end and the finished product storehouse 65 cooperation of third promotion auger 68 finally locate to pack the material at finished product storehouse 65 and transport subsequent processing steps such as.

Claims

1. The utility model provides a porous slot type carbomorphism activation integrative stove which characterized in that: the production line comprises a furnace body and at least one product line, wherein the product line comprises a feeding hole arranged above the furnace body, at least one vertical blanking groove positioned in the furnace body and a material receiving mechanism matched with the blanking groove;

2. The integrated furnace of claim 1, wherein the furnace comprises: the furnace body comprises a fire-resistant wall, a heat-insulating layer and a support wall from inside to outside in sequence.

3. The integrated furnace of claim 1, wherein the furnace comprises: the furnace body side is provided with first promotion auger, and the discharge gate department of first promotion auger upper end is provided with the first horizontal auger that is located the furnace body top, the pan feeding mouth of one or more product lines of first horizontal auger intercommunication.

4. The porous trough type carbonization-activation integrated furnace as claimed in claim 1 or 3, wherein: the feeding port is communicated with a plurality of discharging troughs of the same product line, a discharging hopper which is in a funnel-shaped structure along the end surface of the porous wall is arranged at the upper end of each discharging trough, and the upper ends of adjacent inclined planes of adjacent discharging hoppers are fixed to form a triangular structure.

5. The integrated furnace of claim 1, wherein the furnace comprises: the porous wall is formed by building porous bricks, and the air holes are inclined straight holes.

6. The integrated furnace of claim 1, wherein the furnace comprises: the discharging device is characterized in that a discharger capable of plugging the discharging groove is arranged at the bottom of the discharging groove, and the material receiving mechanism comprises a cooling bin arranged below the discharger.

7. The integrated furnace of claim 6, wherein the furnace comprises: the receiving agencies is still including setting up in the second horizontal auger of cooling storehouse below and cooling storehouse intercommunication, promote the auger with the discharge end complex second of second horizontal auger, promote the discharge end complex third horizontal auger of auger with the second, third horizontal auger intercommunication finished product storehouse.

8. The integrated furnace of claim 7, wherein the furnace comprises: the third horizontal auger is also communicated with a plurality of transition bins corresponding to each product line respectively, the bottoms of the transition bins are communicated with the fourth horizontal auger, the discharge end of the fourth horizontal auger is connected with the third lifting auger, and the discharge end of the third lifting auger is communicated with the finished product bins.