CN215002780U - Device for reducing natural gas consumption of rotary kiln - Google Patents
Device for reducing natural gas consumption of rotary kiln Download PDFInfo
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- CN215002780U CN215002780U CN202120968061.2U CN202120968061U CN215002780U CN 215002780 U CN215002780 U CN 215002780U CN 202120968061 U CN202120968061 U CN 202120968061U CN 215002780 U CN215002780 U CN 215002780U
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- rotary kiln
- waste gas
- plate
- natural gas
- reducing natural
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model relates to the technical field of industrial kilns, in particular to a device for reducing natural gas consumption of a rotary kiln, which comprises a material drying mechanism and a waste gas treatment mechanism, wherein the material drying mechanism is annularly arranged at the outer side of the rotary kiln, and the waste gas treatment mechanism is connected with a gas outlet of the rotary kiln; the material drying mechanism comprises a shell, a material conveying belt and a dehumidifying fan, wherein the shell is coated in the outer side of the rotary kiln, a cavity is formed between the shell and the rotary kiln, the material conveying belt is arranged in the cavity along the length direction of the rotary kiln, the dehumidifying fan is arranged in the shell, a plurality of air suction ports are formed in the inner wall of the shell, and the air suction ports are connected with the dehumidifying fan through pipelines. The shell is coated on the outer side of the rotary kiln, waste heat of the rotary kiln is gathered in the cavity, and the utilization rate of the waste heat is improved.
Description
Technical Field
The utility model relates to an industrial kiln technical field particularly, relates to a reduce device of rotary kiln natural gas consumption.
Background
The rotary kiln is a device commonly used in the industries of cement, lime, titanium dioxide and the like, and during the production process, the rotary kiln and waste gas can generate a large amount of waste heat, so that on one hand, energy waste is caused, and on the other hand, the production cost is increased, such as the consumption of natural gas.
At present, in order to reduce the consumption of natural gas and recycle waste heat, the waste gas generated by the rotary kiln is generally used for preheating materials, the materials are heated to a certain temperature in advance, and the materials can quickly reach a set temperature in the rotary kiln.
Patent CN111964463A discloses a rotary kiln waste heat drying device, and it sets up the platform in the top of rotary kiln, can place the material on the platform, utilizes the rotary kiln to scatter and disappear the heat in the air and carry out the drying to the material to the utilization ratio of increase energy, and then reach the effect that reduces the natural gas consumption. However, in the patent, the platform for drying the materials is directly arranged above the rotary kiln, so that the recycling of heat is limited, and the utilization rate of waste heat is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a reduce device of rotary kiln natural gas consumption, it has material stoving mechanism and exhaust-gas treatment mechanism, through material stoving mechanism, dries the material of rotary kiln production, and the utilization ratio of the energy is improved to the waste heat that make full use of rotary kiln produced, and then reduces the total consumption of natural gas.
The utility model discloses a realize through following technical scheme:
a device for reducing natural gas consumption of a rotary kiln comprises a material drying mechanism and a waste gas treatment mechanism, wherein the material drying mechanism is annularly arranged on the outer side of the rotary kiln, and the waste gas treatment mechanism is connected with a gas outlet of the rotary kiln;
the material drying mechanism comprises a shell, a material conveying belt and a dehumidifying fan, wherein the shell is coated in the outer side of the rotary kiln, a cavity is formed between the shell and the rotary kiln, the material conveying belt is arranged in the cavity along the length direction of the rotary kiln, the dehumidifying fan is arranged in the shell, a plurality of air suction ports are formed in the inner wall of the shell, and the air suction ports are connected with the dehumidifying fan through pipelines. The shell is coated on the outer side of the rotary kiln, waste heat of the rotary kiln is gathered in the cavity, and the utilization rate of the waste heat is improved.
Furthermore, the shell is provided with a heat insulation layer.
Further, the material drying mechanism further comprises a scraping plate, the scraping plate is connected with the shell and located above the material conveying belt, and the bottom of the scraping plate is abutted to the material conveying belt. The materials are placed on the conveying belt, and the materials on the conveying belt can be scattered and evenly spread through the scraping plate.
Furthermore, comb teeth are arranged at the bottom of the scraping plate; the scraping plates are arranged at intervals, and the comb teeth of the adjacent scraping plates are arranged in a staggered manner. The scraping plates arranged in a staggered mode can scatter materials on the conveying belt, turn over the materials and the like, so that the materials can be sufficiently dried.
Furthermore, the feeding end of the material conveying belt is close to the discharging end of the rotary kiln.
Further, the waste gas treatment mechanism comprises a waste gas pipeline, a material preheating mechanism arranged in the waste gas pipeline and a dust filtering mechanism arranged at a gas outlet of the waste gas pipeline;
the material preheats the spiral pipe that the mechanism includes vertical setting, the top of spiral pipe has the material import, the bottom of spiral pipe has the material export, waste gas in the waste gas pipeline passes through from bottom to top the spiral pipe. The material gets into from the top of spiral pipe, through the spiral pipe, discharges from the bottom of spiral pipe, and waste gas rises from the bottom of spiral pipe, rises and the in-process that the material descends at waste gas, through the heat exchange, preheats the material. The utility model discloses in, the material is long at the motion time of spiral pipe, can be abundant carry out the heat exchange with waste gas, has improved the utilization ratio of waste gas.
Furthermore, dust filtering mechanism includes connecting plate, connecting axle and a plurality of filter plate, the connecting plate with the connection can be dismantled to exhaust gas duct's gas outlet, the connecting axle is protruding to be located a face of connecting plate, it is a plurality of filter plate is coaxial and the interval is located the connecting axle is a plurality of filter plate is located in the exhaust gas duct, just filter plate's periphery with exhaust gas duct's inner wall butt. And an air outlet is arranged on the connecting plate.
Further, the filter screen plate is in threaded connection with the connecting shaft.
Furthermore, the connecting plate pass through the ring flange with the exhaust gas duct mouth is connected, just the connecting plate is close to one side of exhaust gas duct mouth is equipped with the sealing washer.
Waste gas generated by the rotary kiln enters a waste gas pipeline; the material to be preheated is added into the feed hopper, enters the spiral pipeline, and absorbs heat in waste gas through heat exchange to realize heating of the material. When the dust filtering mechanism needs to be cleaned, the dust filtering mechanism is detached from the waste gas pipeline.
The utility model discloses following advantage and beneficial effect have at least:
the utility model discloses in, be equipped with material stoving mechanism in the outside of rotary kiln, this material stoving mechanism includes the casing, and the casing is equipped with the material conveyer belt with the rotary kiln cladding, is equipped with the material conveyer belt at the casing, places the material on the material conveyer belt, and the waste heat that the rotary kiln produced is by the casing gathering in the cavity, and the material is heated in the cavity to combine the dehumidification fan, dry the material. The shell is coated on the outer side of the rotary kiln, waste heat of the rotary kiln is gathered in the cavity, and the utilization rate of the waste heat is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic front view of a device for reducing natural gas consumption of a rotary kiln provided by the present invention;
FIG. 2 is a schematic front view of the waste gas treatment device of the device for reducing natural gas consumption of the rotary kiln of the present invention;
FIG. 3 is a schematic cross-sectional view taken along the line A-A in FIG. 1;
icon: 1-material drying mechanism, 11-shell, 12-material conveying belt, 13-dehumidifying fan, 14-air suction opening, 15-scraping plate, 2-waste gas treatment mechanism, 21-waste gas pipeline, 22-spiral pipe, 23-connecting plate, 24-connecting shaft, 25-filter screen plate and 3-rotary kiln.
Detailed Description
Example (b): as shown in the attached figures 1-3,
the embodiment provides a device for reducing natural gas consumption of a rotary kiln, which comprises a material drying mechanism 1 and a waste gas treatment mechanism 2, wherein the material drying mechanism 1 is annularly arranged on the outer side of the rotary kiln 3, and the waste gas treatment mechanism 2 is connected with a gas outlet of the rotary kiln 3;
specifically, in this embodiment, as shown in fig. 1 and 3, material drying mechanism 1 includes casing 11, material conveyer belt 12 and dehumidification fan 13, casing 11 is equipped with the heat preservation, casing 11 cladding in the outside of rotary kiln 3, just casing 11 with the cavity has between the rotary kiln 3, material conveyer belt 12 is followed rotary kiln 3's length direction locates in the cavity, the both ends of material conveyer belt 12 all are located the casing 11 outside, material conveyer belt 12 feed end is close to the discharge end of rotary kiln 3, dehumidification fan 13 locates the outside of casing 11, just casing 11 inner wall is equipped with a plurality of inlet scoops 14, inlet scoop 14 pass through the pipeline with dehumidification fan 13 is connected.
When the rotary kiln is used, waste heat generated when the rotary kiln 3 works is collected in the cavity by the shell 11, the materials are conveyed through the cavity by the material conveying belt 12 and matched with the dehumidifying fan 13 to dry the materials.
In this embodiment, in order to improve the drying efficiency, the material drying mechanism 1 further includes a scraping plate 15, the scraping plate 15 is connected to the housing 11, the scraping plate 15 is located above the material conveying belt 12, and the bottom of the scraping plate 15 is abutted to the material conveying belt 12. The bottom of the scraping plate 15 is provided with comb teeth; the scraping plates 15 are arranged in a plurality, the scraping plates 15 are arranged at intervals along the conveying direction of the material conveying belt 12, and the comb teeth of the adjacent scraping plates 15 are arranged in a staggered mode. The material is placed on the conveyer belt, and the flitch 15 of scraping of dislocation set can be broken up, turn-over etc. with the material on the conveyer belt to make the abundant quilt of material ability dry.
In this embodiment, the exhaust gas treatment mechanism 2 includes an exhaust gas pipeline 21, a material preheating mechanism disposed in the exhaust gas pipeline 21, and a dust filtering mechanism disposed at an air outlet of the exhaust gas pipeline 21;
the material preheats the spiral pipe 22 that the mechanism includes vertical setting, the top of spiral pipe 22 has the material import, the bottom of spiral pipe 22 has the material export, waste gas in the waste gas pipeline 21 passes through from bottom to top spiral pipe 22. The material enters from the top of the spiral pipe 22, passes through the spiral pipe 22, is discharged from the bottom of the spiral pipe 22, and the waste gas rises from the bottom of the spiral pipe 22, and in the process of rising of the waste gas and descending of the material, the material is preheated through heat exchange. The utility model discloses in, the material is long in the motion time of spiral pipe 22, can be abundant carry out the heat exchange with waste gas, has improved the utilization ratio of waste gas.
The dust filtering mechanism comprises a connecting plate 23, a connecting shaft 24 and a plurality of filtering screen plates 25, the connecting plate 23 is detachably connected with the gas outlet of the waste gas pipeline 21 through a flange plate, and the connecting plate 23 is provided with a gas outlet. The connecting shaft 24 is convexly arranged on one plate surface of the connecting plate 23, the filter screen plates 25 are coaxially arranged on the connecting shaft 24 at intervals, the filter screen plates 25 are positioned in the waste gas pipeline 21, the peripheries of the filter screen plates 25 are abutted to the inner wall of the waste gas pipeline 21, and the connecting plate 23 is provided with a gas outlet. The filter screen plate 25 is in threaded connection with the connecting shaft 24, so that the filter screen plate 25 is convenient to disassemble, and the filter screen plate 25 can be disassembled to clean the filter screen plate 25. The connecting plate 23 is connected with the 21 port of the waste gas pipeline through a flange plate, and a sealing ring is arranged on one side, close to the 21 port of the waste gas pipeline, of the connecting plate 23.
Waste gas generated by the operation of the rotary kiln 3 enters a waste gas pipeline 21; the material to be preheated is added into the feed hopper, enters the spiral pipe 22, and absorbs heat in waste gas through heat exchange to realize heating of the material. When the dust filter mechanism needs to be cleaned, it is detached from the exhaust gas duct 21.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A device for reducing natural gas consumption of a rotary kiln is characterized in that: the device comprises a material drying mechanism (1) and a waste gas treatment mechanism (2), wherein the material drying mechanism (1) is annularly arranged on the outer side of a rotary kiln (3), and the waste gas treatment mechanism (2) is connected with a gas outlet of the rotary kiln (3);
material stoving mechanism (1) includes casing (11), material conveyer belt (12) and dehumidification fan (13), casing (11) cladding in the outside of rotary kiln (3), just casing (11) with the cavity has between rotary kiln (3), material conveyer belt (12) are followed the length direction of rotary kiln (3) is located in the cavity, dehumidification fan (13) are located casing (11), just casing (11) inner wall is equipped with a plurality of inlet scoop (14), inlet scoop (14) through the pipeline with dehumidification fan (13) are connected.
2. The apparatus for reducing natural gas consumption of a rotary kiln as claimed in claim 1, wherein: the material drying mechanism (1) further comprises a scraping plate (15), the scraping plate (15) is connected with the shell (11), the scraping plate (15) is located above the material conveying belt (12), and the bottom of the scraping plate (15) is abutted to the material conveying belt (12).
3. The apparatus for reducing natural gas consumption of a rotary kiln as claimed in claim 1, wherein: comb teeth are arranged at the bottom of the scraping plate (15); the scraping plates (15) are arranged in a plurality, the scraping plates (15) are arranged at intervals, and the comb teeth of the adjacent scraping plates (15) are arranged in a staggered mode.
4. The apparatus for reducing natural gas consumption of a rotary kiln as claimed in claim 1, wherein: the feeding end of the material conveying belt (12) is close to the discharging end of the rotary kiln (3).
5. An arrangement for reducing natural gas consumption in a rotary kiln (3) as claimed in claim 1, characterized in that: the waste gas treatment mechanism (2) comprises a waste gas pipeline (21), a material preheating mechanism arranged in the waste gas pipeline (21) and a dust filtering mechanism arranged at a gas outlet of the waste gas pipeline (21);
the material preheats the spiral pipe (22) that the mechanism includes vertical setting, the top of spiral pipe (22) has the material import, the bottom of spiral pipe (22) has the material export, waste gas in waste gas pipeline (21) is passed through from bottom to top spiral pipe (22).
6. The apparatus for reducing natural gas consumption of a rotary kiln as claimed in claim 5, wherein: dust filtering mechanism includes connecting plate (23), connecting axle (24) and a plurality of filter plate (25), connecting plate (23) with the connection can be dismantled to the gas outlet of exhaust gas conduit (21), connecting axle (24) protruding locate a face of connecting plate (23), it is a plurality of filter plate (25) are coaxial and the interval is located connecting axle (24), it is a plurality of filter plate (25) are located in exhaust gas conduit (21), just filter plate (25) the periphery with the inner wall butt of exhaust gas conduit (21).
7. The apparatus for reducing natural gas consumption of a rotary kiln as claimed in claim 6, wherein: the filter screen plate (25) is in threaded connection with the connecting shaft (24).
8. The apparatus for reducing natural gas consumption of a rotary kiln as claimed in claim 6, wherein: the connecting plate (23) is connected with the opening of the waste gas pipeline (21) through a flange plate, and a sealing ring is arranged on one side, close to the opening of the waste gas pipeline (21), of the connecting plate (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120968061.2U CN215002780U (en) | 2021-05-07 | 2021-05-07 | Device for reducing natural gas consumption of rotary kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120968061.2U CN215002780U (en) | 2021-05-07 | 2021-05-07 | Device for reducing natural gas consumption of rotary kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215002780U true CN215002780U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120968061.2U Active CN215002780U (en) | 2021-05-07 | 2021-05-07 | Device for reducing natural gas consumption of rotary kiln |
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| CN (1) | CN215002780U (en) |
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2021
- 2021-05-07 CN CN202120968061.2U patent/CN215002780U/en active Active
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