CN214147921U - Incinerator system for treating tar-containing desulfurized ash - Google Patents
Incinerator system for treating tar-containing desulfurized ash Download PDFInfo
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- CN214147921U CN214147921U CN202120047778.3U CN202120047778U CN214147921U CN 214147921 U CN214147921 U CN 214147921U CN 202120047778 U CN202120047778 U CN 202120047778U CN 214147921 U CN214147921 U CN 214147921U
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Abstract
The utility model discloses an incinerator system for treating tar-containing desulfurized ash, which comprises a desulfurized ash buffer bin and an incinerator communicated with the desulfurized ash buffer bin through a transmission metering assembly; one end of the incinerator close to the desulfurized fly ash buffer bin is a feeding end, and one end of the incinerator far away from the desulfurized fly ash buffer bin is a discharging end; the feed end is provided with a burner, and the burner partially extends into the incinerator; the utility model discloses a system is mainly to the high temperature treatment who contains tar desulfurization ash powdery material to burn burning furnace high temperature combustion's mode and get rid of tar harmful substance, adopt little negative pressure control in the kiln, order about through the rotation that burns burning furnace and order about the powder with the effect of lifting blade and be axial and radial motion, and abundant burning, burn in the burning furnace and be heated fully, evenly, stable, handle desulfurization ash with 600 ~ 700 ℃ of temperature range, realized innocent treatment.
Description
Technical Field
The utility model relates to a plain environmental protection of charcoal administers technical field, especially relates to an burn burning furnace system for handling contain tar desulfurization ash.
Background
The semi-dry desulfurization process has the advantages of short process flow, simple structure and control, no white smoke, rain and wastewater generation and the like, is widely applied to flue gas desulfurization engineering in industries such as steel sintering, glass, coal-fired power plants and the like at present, and begins to be applied in a small amount in the carbon industry in recent years.
The semi-dry desulfurization ash is a byproduct generated by a semi-dry flue gas desulfurization process and mainly comprises the following components: free calcium oxide, calcium sulfite, calcium carbonate, calcium sulfate, calcium hydroxide and the like. Because the calcium sulfite component in the semidry desulfurization ash is unstable, certain difficulty is brought to the comprehensive utilization of the semidry desulfurization ash.
In the prior art, the semi-dry desulfurization ash treatment and utilization technology mainly aims at producing building materials such as baking-free bricks, autoclaved bricks, cement retarders, cementing materials, dry-mixed mortar, roadbed materials, ceramics, gypsum products, panels for composite wallboards, building blocks, filling materials and the like, but finally, because the semi-dry desulfurization ash is unstable in composition, the actual mixing amount is small, the industrial production cannot be realized, and most desulfurization ash is still piled up, buried and subjected to low-value treatment.
However, there is no system and process capable of realizing harmless treatment of semi-dry desulfurized ash containing tar in the prior art, and therefore, based on the technical problem, a system and a process are urgently needed to be developed by technical personnel in the field to realize harmless treatment of semi-dry desulfurized ash containing tar.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an use high temperature to burn harmful substance in the decomposition desulfurization ash to realize calcium sulfite to more stable calcium sulfate's conversion, be favorable to the comprehensive utilization of desulfurization ash to handle the burning furnace system that burns that contains tar desulfurization ash.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses an burn burning furnace system for handling contain tar desulfurization ash, this burns burning furnace system includes:
the desulfurization ash buffer bin is communicated with a semi-dry desulfurization system at the upstream of the process and receives desulfurization ash generated by the semi-dry desulfurization system and conveyed by a bin pump at the lower part of an ash bucket of the semi-dry desulfurization system;
the incinerator is communicated with the desulfurized ash buffer bin through a transmission metering component;
one end of the incinerator close to the desulfurized fly ash buffer bin is a feeding end, and one end of the incinerator far away from the desulfurized fly ash buffer bin is a discharging end;
the feed end is provided with a burner, and the burner partially extends into the incinerator;
the system further comprises:
a cooling kiln integrated downstream of the discharge end process of the incinerator;
the cooling kiln receives the material treated by the incinerator and cools the material to below 100 ℃.
Further, the desulfurization ash surge bin includes:
a surge bin body; and
the steel structure frame supports the surge bin body;
the upper part of the surge bin body is of a cylinder structure for collecting desulfurization ash generated by a process upstream system, and the lower part of the surge bin body is of a necking structure which is communicated with the upper part of the surge bin body and has a diameter gradually reduced from top to bottom;
the lower end of the surge bin body is connected with the transmission metering assembly.
Further, the transfer metering assembly comprises:
the rotary feeder is integrated at the lower end of the surge bin body;
the metering scale is positioned at the output end of the rotary feeder; and
the variable-frequency conveying screw mechanism is integrated at the discharge port of the metering scale;
the rotary feeder, the metering scale and the variable-frequency conveying screw mechanism are all controlled by an external controller.
Further, the output end of the variable-frequency conveying screw mechanism is provided with a feeding plate which extends towards the feeding end of the incinerator in an inclined mode;
and the materials conveyed by the conveying and metering assembly pass through the feeding plate and enter the incinerator from the feeding end.
Further, the length of the incinerator is not less than 10 m;
the inside of the incinerator is provided with a material raising plate along the circumferential direction;
the outer surface of the incinerator is provided with a heat insulation layer;
the incinerator is made of 310S heat-resistant stainless steel or carbon steel lining refractory material;
the incinerator is provided with two sets of rotary supporting mechanisms, each rotary supporting mechanism consists of a positioning end supporting roller, a free end supporting roller and a supporting ring, and the lower parts of the positioning end supporting rollers and the free end supporting rollers are immersed in a cooling water box for cooling the rollers;
the rotary motion of the incinerator is driven by a driving mechanism;
the working temperature of the incinerator is below 800 ℃.
Further, the incinerator is supported on the side face of the steel structure frame through a supporting assembly;
the support assembly includes:
a foundation supported on the ground; and
a mount supported above the foundation;
the mounting seat extends along the extension direction of the incinerator and is fixedly connected with the incinerator to support the incinerator.
The mounting seat is provided with an adjusting mechanism for adjusting the height, and the incinerator is adjusted in inclination angle through the adjusting mechanism.
Furthermore, one end of the cooling kiln is close to the discharge end of the incinerator, and the cooling kiln receives the materials treated by the incinerator;
the cooling kiln receives the materials treated by the incinerator through a screw conveyer and sends the materials into a cooling cylinder;
the cooling cylinder is made of stainless steel, two ends of the cooling cylinder are formed into conical structures, the middle part of the cooling cylinder is formed into a cylindrical structure, the cylindrical structure of the cooling cylinder is arranged in a cooling water tank, cooling water is filled in the cooling water tank, and the water level in the cooling water tank is configured to be 50-100 mm immersed in the bottom of the cooling cylinder;
a cooling spraying device is arranged at the upper part of the cooling water tank and used for cooling the cooling cylinder;
the high-temperature material received by the cooling kiln is in heat transfer with the cooling cylinder, and the cooling cylinder is in heat exchange with cooling water to reduce the temperature of the material.
Further, the other end of the cooling kiln extends towards the side far away from the incinerator, and the side of the cooling kiln far away from the incinerator is provided with a discharge port;
a crusher is integrated at the discharge port of the cooling kiln;
the crusher is internally provided with crushing rollers which are separated from each other, and a crushing space is configured between adjacent crushing rollers, and the width of the crushing space is not more than 2 mm.
Further, the process downstream of the crusher conveys the crushed material through a pneumatic conveying system and stores the crushed material to a final product bin.
In the technical scheme, the utility model provides a pair of be used for handling and contain burning furnace system that burns of tar desulfurization ash has following beneficial effect:
the utility model discloses a system is mainly to the high temperature treatment who contains tar desulfurization ash powdery material to burn burning furnace high temperature combustion's mode and get rid of tar harmful substance, adopt little negative pressure control in the kiln, order about through the rotation that burns burning furnace and order about the powder with the effect of lifting blade and be axial and radial motion, and abundant burning, burn in the burning furnace and be heated fully, evenly, stable, handle desulfurization ash with 600 ~ 700 ℃ of temperature range, realized innocent treatment.
The utility model discloses a desulfurization ash after the system processing is grey white, remains through detecting no tar, belongs to general useless admittedly, burns burning furnace seal design, and the system operation does not have raise dust, emits the ash phenomenon.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
FIG. 1 is a schematic structural diagram of an incinerator system for treating tar-containing desulfurized ash according to an embodiment of the present invention;
FIG. 2 is an enlarged view of an incinerator system for treating an incinerator system containing tar and desulfurized ash according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a cooling kiln of an incinerator system for treating tar-containing desulfurized fly ash according to an embodiment of the present invention;
FIG. 4 is a process flow diagram of an incinerator system for treating desulfurized ash containing tar according to an embodiment of the present invention.
Description of reference numerals:
1. a desulfurized fly ash buffer bin; 2. a rotary feeder; 3. weighing; 4. a variable frequency conveying screw mechanism; 5. a burner; 6. a feeding plate; 7. an incinerator; 9. cooling the kiln; 10. a crusher; 11. a pneumatic conveying system;
101. an upper portion; 102. a lower portion;
701. a material raising plate; 702. a heat-insulating layer; 703. a feeding end; 704. a discharge end; 705. a positioning end support mechanism; 706. a free end support mechanism; 707. a drive mechanism;
801. a foundation; 802. a mounting seat; 803. an adjustment device;
901. a screw conveyor; 902. a cooling water tank; 903. a cooling cylinder; 904. cooling the spray device; 905. and (7) discharging the air.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4;
the utility model discloses an burn burning furnace system for handling contain tar desulfurization ash, this burns burning furnace system includes:
the desulfurization ash buffer bin 1 is communicated with a semi-dry desulfurization system at the upstream of the process, and the desulfurization ash buffer bin 1 receives desulfurization ash generated by the semi-dry desulfurization system and conveyed by a bin pump at the lower part of an ash bucket at the outlet of the semi-dry desulfurization system;
the incinerator 7 is communicated with the desulfurized fly ash buffer bin 1 through a transmission metering component;
one end of the incinerator 7 close to the desulfurized fly ash buffer bin 1 is a feeding end 703, and one end of the incinerator 7 far away from the desulfurized fly ash buffer bin 1 is a discharging end 704;
the feeding end 703 is provided with a burner 5, and the burner 5 partially extends into the desulfurization ash buffer bin 1;
the system further comprises:
a cooling kiln 9 integrated downstream of the discharge end 704 process of the incinerator 7;
the cooling kiln 9 receives the material treated by the incinerator 7 and cools the material to below 100 ℃.
Specifically, this embodiment discloses a be used for handling incinerator system that contains tar desulfurization ash, its core processing mechanism is for burning furnace 7, at first collect the desulfurization ash that produces through calcination semidry desulfurization system with above-mentioned desulfurization ash surge bin 1, and according to actual technological requirement, measure, the transmission, when desulfurization ash gets into burning furnace 7, tar in the desulfurization ash is heated and is volatilized, utilize the high temperature flame direct action of combustor 5 to desulfurization ash combustible substance, direct combustion desulfurization ash, the desulfurization ash after burning gets into cooling kiln 9 internal cooling again, until final collection.
Preferably, the desulfurized fly ash surge bin 1 in the present embodiment comprises:
a surge bin body; and
a steel structure frame supporting the surge bin body;
the upper part 101 of the surge bin body is of a cylinder structure for collecting desulfurization ash generated by a process upstream system, and the lower part 102 of the surge bin body is of a necking structure which is communicated with the upper part 101 of the surge bin body and has a diameter gradually reduced from top to bottom;
the lower end of the surge bin body is connected with a transmission metering component.
Wherein, above-mentioned transmission measurement subassembly includes:
a rotary feeder 2 integrated at the lower end of the surge bin body;
the metering scale 3 is positioned at the output end of the rotary feeder 2; and
a variable-frequency conveying screw mechanism 4 integrated at a discharge port of the scale 3;
the rotary feeder 2, the metering scale 3 and the variable-frequency conveying screw mechanism 4 are all controlled by an external controller.
According to the metering requirement of actual incineration, the transmission metering component is designed, powder/materials are transmitted to a metering scale by a rotary feeder 2 (or other similar mechanisms capable of transmitting materials), the materials weighed by the metering scale are conveyed to an incinerator 7 by a variable-frequency conveying screw, and the blanking amount is regulated by a PID (proportion integration differentiation) and is conveyed into the incinerator 7 according to a set metering value for oxidation combustion.
Preferably, in the embodiment, the output end of the variable frequency conveying screw mechanism 4 is provided with a feeding plate 6 extending obliquely towards the feeding end of the incinerator 7;
the material conveyed by the conveying and metering assembly enters the incinerator 7 from the feeding end through the feeding plate 6.
In order to make the powder stay sufficiently, the length of the incinerator 7 of the present embodiment is not less than 10 m;
a material raising plate 701 is arranged inside the incinerator 7 along the circumferential direction thereof;
the outer surface of the incinerator 7 is provided with a heat insulating layer 702;
the incinerator 7 is made of 310S heat-resistant stainless steel or carbon steel lining refractory material;
the incinerator 7 is provided with two sets of rotary supporting mechanisms which respectively consist of a positioning end supporting roller, a free end supporting roller and a supporting ring, and the lower part of the roller is immersed in a cooling water box for cooling the roller;
the rotary motion of the incinerator 7 is realized by a driving mechanism, and the rotating speed of the incinerator is variable-frequency and adjustable;
the operating temperature of the incinerator 7 is 800 ℃ or lower.
The material lifting plate 701 is obliquely arranged in the incinerator 7 and can lift powder along with rotation, and the lifted powder can ensure that flame is fully contacted with the powder, so that full combustion is ensured. In addition, according to the angle design of the material raising plate 701, the powder can be driven to move towards the discharge end along with the raised dust, and finally the powder is discharged from the incinerator 7.
Preferably, the incinerator 7 in the present embodiment is supported on the side of the steel structural frame by a support assembly;
the support assembly includes:
a foundation 801 supported on the ground; and
a mount 802 supported above the foundation 801;
the mount base extends in the extending direction of the incinerator 7 and is fixedly connected with the incinerator 7 to support the incinerator 7.
The mounting base is provided with a mechanism 803 with adjustable height, and the inclination angle of the incinerator can be adjusted according to the requirement;
preferably, in this embodiment, one end of the cooling kiln 9 is close to the discharge end 704 of the incinerator 7, and the cooling kiln 9 receives the material treated by the incinerator 7;
the cooling kiln 9 receives the material treated by the incinerator 7 through a screw conveyor 901 and feeds the material into a cooling cylinder 903,
the cooling cylinder 903 is made of stainless steel, two ends of the cooling cylinder are conical, the middle of the cooling cylinder is cylindrical, the cylindrical part is arranged in the cooling water tank 902, cooling water is filled in the cooling water tank 902, and the water level is preferably 50-100 mm higher than the bottom of the cooling cylinder;
a cooling spray device 904 is arranged at the upper part of the cooling water tank 902 and used for cooling the cooling cylinder 903;
the high-temperature material received by the cooling kiln 9 is in heat transfer with the cooling cylinder 903, and the cooling cylinder 903 is in heat exchange with the cooling water so as to reduce the temperature of the material.
Preferably, the other end of the cooling kiln 9 extends towards the side far away from the incinerator 7, and the side of the cooling kiln far away from the incinerator 7 is provided with a discharge port;
a crusher 10 is integrated at the discharge port of the cooling kiln 9;
the crusher 10 has therein crushing rollers separated from each other, and adjacent crushing rollers are configured as a crushing space therebetween, and the width of the crushing space is not more than 2 mm.
Preferably, the process downstream of the crusher 10 in this embodiment delivers the crushed material through a pneumatic conveying system 11 and stores it in a final product silo.
In the technical scheme, the utility model provides a pair of be used for handling and contain burning furnace system that burns of tar desulfurization ash has following beneficial effect:
the utility model discloses a system is mainly to the high temperature treatment who contains tar desulfurization ash powdery material to burn 7 high temperature combustion's of burning furnace mode and get rid of tar harmful substance, adopt little negative pressure control in the kiln, order about and the effect of lifting blade 701 orders about the powder through the rotation that burns burning furnace 7 and be axial and radial motion, and abundant burning, burn to burn in burning furnace 7 and burn and be heated fully, evenly, stable, handle desulfurization ash with 600 ~ 700 ℃ of temperature range, realized innocent treatment.
The utility model discloses a desulfurization ash after the system processing is grey white, remains through detecting no tar, belongs to general useless admittedly, burns burning furnace seal design, and the system operation does not have raise dust, emits the ash phenomenon.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (9)
1. An incinerator system for treating desulfurized ash containing tar, the incinerator system comprising:
the desulfurization ash buffer bin (1) is communicated with a semi-dry desulfurization system at the upstream of the process, and the desulfurization ash buffer bin (1) receives desulfurization ash generated by the semi-dry desulfurization system and conveyed by a bin pump at the lower part of an ash bucket of the semi-dry desulfurization system;
the incinerator (7) is communicated with the desulfurized fly ash buffer bin (1) through a transmission metering assembly;
one end of the incinerator (7) close to the desulfurized ash buffer bin (1) is a feeding end (703), and one end of the incinerator (7) far away from the desulfurized ash buffer bin (1) is a discharging end (704);
the feed end (703) having a burner (5), and the burner (5) extending partially into the incinerator (7);
the system further comprises:
a cooling kiln (9) integrated downstream of the discharge end process of the incinerator (7);
the cooling kiln (9) receives the material treated by the incinerator (7) and cools the material to below 100 ℃.
2. Incinerator system for the treatment of tar-containing desulphurized ashes according to claim 1 characterized in that said desulphurized ash surge bin (1) comprises:
a surge bin body; and
the steel structure frame supports the surge bin body;
the upper part (101) of the surge bin body is of a cylinder structure for collecting desulfurization ash generated by a process upstream system, and the lower part (102) of the surge bin body is of a necking structure which is communicated with the upper part of the surge bin body and has a diameter gradually reduced from top to bottom;
the lower end of the surge bin body is connected with the transmission metering assembly.
3. The incinerator system for treating tar-containing desulfurized ash according to claim 2 wherein said transfer metering assembly comprises:
a rotary feeder (2) integrated at the lower end of the surge bin body;
the metering scale (3) is positioned at the output end of the rotary feeder (2); and
a variable-frequency conveying screw mechanism (4) integrated with the discharge hole of the metering scale (3);
the rotary feeder (2), the metering scale (3) and the variable-frequency conveying screw mechanism (4) are controlled by an external controller.
4. An incinerator system for treating tar-containing desulphurized ash according to claim 3 wherein the output end of said variable frequency conveyor screw (4) has a feed plate (6) extending obliquely towards the feed end (703) of said incinerator (7);
the materials conveyed by the conveying and metering assembly enter the incinerator (7) from the feeding end (703) through the feeding plate (6).
5. Incinerator system for treating tar-containing desulphurized ash according to any of claims 2 to 4 characterized in that said incinerator (7) has a length not less than 10 m;
a material raising plate (701) is arranged in the incinerator (7) along the circumferential direction of the incinerator;
the outer surface of the incinerator (7) is provided with a heat insulation layer (702);
the incinerator (7) is made of 310S heat-resistant stainless steel or carbon steel lining refractory material;
the incinerator (7) is provided with two sets of rotary supporting mechanisms, each rotary supporting mechanism consists of a positioning end supporting roller (705), a free end supporting roller (706) and a supporting ring, and the lower parts of the positioning end supporting roller (705) and the free end supporting roller (706) are immersed in a cooling water box for cooling the rollers;
the rotary motion of the incinerator (7) is driven by a driving mechanism (707);
the working temperature of the incinerator (7) is below 800 ℃.
6. An incinerator system for processing tar-containing desulfurized ash according to claim 5 wherein said incinerator (7) is supported on the side of said steel structural frame by means of support assemblies;
the support assembly includes:
a foundation (801) supported on the ground; and
a mount (802) supported above the foundation (801);
the mounting seat (802) extends along the extension direction of the incinerator (7) and is fixedly connected with the incinerator (7) to support the incinerator (7);
the mounting base (802) has an adjusting mechanism (803) for adjusting the height, and the incinerator (7) is adjusted in the inclination angle by the adjusting mechanism (803).
7. An incinerator system for processing ash containing tar and desulfurized ash according to claim 1 wherein said cooling kiln (9) is located at one end near the discharge end (704) of said incinerator (7) and said cooling kiln (9) receives the material processed by said incinerator (7);
the cooling kiln (9) receives the materials treated by the incinerator (7) through a screw conveyer (901) and sends the materials into a cooling cylinder (903);
the cooling cylinder (903) is made of stainless steel, two ends of the cooling cylinder (903) are formed into conical structures, the middle part of the cooling cylinder (903) is formed into a cylindrical structure, the cylindrical structure of the cooling cylinder (903) is installed in a cooling water tank (902), the cooling water tank (902) is filled with cooling water, and the water level in the cooling water tank (902) is configured to be 50-100 mm immersed in the bottom of the cooling cylinder;
a cooling spray device (904) is arranged at the upper part of the cooling water tank (902), and the cooling spray device (904) is used for cooling the cooling cylinder (903);
the high-temperature materials received by the cooling kiln (9) are in heat transfer with the cooling cylinder (903), and the cooling cylinder (903) is in heat exchange with cooling water to reduce the temperature of the materials.
8. An incinerator system for treating tar-containing desulfurized ash according to claim 7 wherein said cooling kiln (9) is extended at the other end thereof toward the side remote from said incinerator (7), and said cooling kiln (9) has a discharge port at the side remote from said incinerator (7);
a crusher (10) is integrated at the discharge port of the cooling kiln (9);
the crusher (10) is internally provided with crushing rollers which are separated from each other, and a crushing space is configured between the adjacent crushing rollers, and the width of the crushing space is not more than 2 mm.
9. The incinerator system for processing tar-containing desulphurized ash according to claim 8, characterized in that the process downstream of the crusher (10) delivers the crushed material through pneumatic conveying system (11) and stores it to the final product silo.
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| CN202120047778.3U CN214147921U (en) | 2021-01-08 | 2021-01-08 | Incinerator system for treating tar-containing desulfurized ash |
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| CN112815330A (en) * | 2021-01-08 | 2021-05-18 | 索通发展股份有限公司 | Incinerator system for treating tar-containing desulfurized ash |
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| CN112815330A (en) * | 2021-01-08 | 2021-05-18 | 索通发展股份有限公司 | Incinerator system for treating tar-containing desulfurized ash |
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