Annular flue gas conveying system for multifunctional rotary kiln

Abstract

The utility model discloses an annular flue gas conveying system for a multifunctional rotary kiln, which comprises a conveying system, the conveying system comprises a flue gas conveying pipeline and a plurality of stock bins, the top ends of the plurality of stock bins are communicated with the bottom end of the flue gas conveying pipeline, and a reverse surface cooler is arranged on one side of the top end of the flue gas conveying pipeline. According to the annular flue gas conveying system for the multifunctional rotary kiln, a loop is formed by the flue gas conveying system, the flue gas conveying system can be used as a down-flow rotary kiln production line, the production efficiency is improved, the production cost is reduced, and the production efficiency is improved. The device can also be used as a countercurrent rotary kiln production line and can also be simultaneously used for downstream and countercurrent; the kiln can be used as an incineration kiln and a drying kiln, and can also be used as a calcining kiln and a metallurgical volatilization kiln. And different complex diversified production requirements are met, and the investment is greatly saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental protection technical field, concretely is annular flue gas conveying system for multi -functional rotary kiln. BACKGROUND

[0002] Rotary kiln has the characteristics of continuous operation, can realize large -scale, continuous processing of material. This production mode not only improves production efficiency, also reduces the energy consumption and cost of unit product, for example, in cement production, rotary kiln can 24 hours unintermittently run, can produce a large number of cement clinker every day, rotary kiln makes material in kiln constantly rolls and mixes in the rotation process, to realize even heating and reaction, this even heat treatment effect helps to improve product quality and consistency, reduces the defective rate, for example, in ceramic production, rotary kiln can make ceramic body in all directions receive even heating, and the ceramic product of uniform quality, consistent color is fired, rotary kiln will produce a large amount of flue gas when using, the treatment of high-temperature flue gas produced in the rotary kiln production process, generally uses pulse dust collector, electric dust collection, water film dust removal and other ways.

[0003] However, the traditional flue gas treatment has the following shortcomings:

[0004] Pulse dust collector is selected most due to high dust collection efficiency and small investment, but it is easy to produce dewing or burn cloth bag during operation, which brings great trouble to production, especially for strong acid flue gas, high dewing temperature, and large flue gas temperature fluctuation during production process, small cooling area, easy to cause high flue gas temperature, resulting in burning of pulse dust collector cloth bag, large cooling area, easy to cause low flue gas temperature, dewing, blockage of cloth bag, production interruption and damage to cloth bag. SUMMARY

[0005] The utility model discloses a purpose for annular flue gas conveying system for multi -functional rotary kiln is provided to solve the problem that the pulse dust collector is selected most due to high dust collection efficiency and small investment, but it is easy to produce dewing or burn cloth bag during operation, which brings great trouble to production, especially for strong acid flue gas, high dewing temperature, and large flue gas temperature fluctuation during production process, small cooling area, easy to cause high flue gas temperature, resulting in burning of pulse dust collector cloth bag, large cooling area, easy to cause low flue gas temperature, dewing, blockage of cloth bag, production interruption and damage to cloth bag.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: annular flue gas conveying system for multi -functional rotary kiln, including conveying system, the conveying system includes flue gas conveying pipeline and a plurality of stock bin, a plurality of the top of stock bin all with the bottom of flue gas conveying pipeline intercommunication, the side of flue gas conveying pipeline top installs reverse surface cooler, the other side of flue gas conveying pipeline top installs the surface cooler of going with the current, the middle part of flue gas conveying pipeline top installs first bidirectional adjusting cooler, be installed on the one side of first bidirectional adjusting cooler on flue gas conveying pipeline second bidirectional adjusting cooler, be installed on the one side of second bidirectional adjusting cooler on flue gas conveying pipeline third bidirectional adjusting cooler, the inside fixed mounting of flue gas conveying pipeline is a plurality of filter components, a plurality of the side of filter components all installs around flow component.

[0007] Preferably, the plurality of filter components each includes a first filter plate and a second filter plate, the bottom end of the second filter plate is fixedly installed with a plurality of mounting shells, the bottom end of each of the plurality of mounting shells is slidably connected with a sliding frame, the bottom end of each of the plurality of sliding frames is fixedly connected with a side opposite to the first filter plate, the top end of each of the plurality of sliding frames is fixedly installed with a connecting spring, the top end of each of the plurality of connecting springs is fixedly connected with the bottom end of each of the plurality of mounting shells, the second filter plate and the first filter plate sequentially purify and filter the gas conveyed into the flue gas conveying pipeline.

[0008] Preferably, the two ends of the first filter plate are fixedly connected with the flue gas conveying pipeline.

[0009] Preferably, each of the plurality of around flow components includes two first stirring paddles and two driving umbrella bevel gears, one end of each of the two first stirring paddles is fixedly connected with one end of each of the two driving umbrella bevel gears, a second stirring paddle is arranged between the two first stirring paddles, the top end of the second stirring paddle is installed with a driven umbrella bevel gear, the outer side of each of the two driving umbrella bevel gears is meshingly connected with the outer side of the driven umbrella bevel gear, the gas in the rotary kiln is conveyed into the flue gas conveying pipeline, the first stirring paddles rotate under the pushing of the gas, the first stirring paddles drive the driving umbrella bevel gears to rotate, the driving umbrella bevel gears contact the driven umbrella bevel gear, the driven umbrella bevel gear drives the second stirring paddle to rotate, and the flowability of the flue gas injected into the flue gas conveying pipeline is improved.

[0010] Preferably, the one end of each of the two first stirring paddles opposite to each other is rotatably connected with a side opposite to the flue gas conveying pipeline, and the bottom end of the second stirring paddle is rotatably connected with the filter component.

[0011] Preferably, a plurality of temperature measuring instruments are fixedly installed on the surface of the flue gas conveying pipeline.

[0012] Preferably, a material bin pipeline is fixedly communicated between every two adjacent material bins, a material bin valve is fixedly installed at the middle of the material bin pipeline, a first gas outlet pipeline is fixedly communicated with the surface of the first bidirectional adjusting cooler, a second gas outlet pipeline is fixedly communicated with the surface of the second bidirectional adjusting cooler, and a third gas outlet pipeline is fixedly communicated with the surface of the third bidirectional adjusting cooler.

[0013] Compared with the prior art, the beneficial effects of the utility model are that: the flue gas conveying system constitutes a loop, can be used as a direct-flow rotary kiln production line, can be used as an inverse-flow rotary kiln production line, and can be used as a direct-flow and inverse-flow rotary kiln simultaneously; can be used as an incineration kiln and a drying kiln, and can be used as a calcination kiln and a metallurgical volatile kiln. Different complex and diversified production needs are met, and investment is greatly saved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a side view of the conveying system of the utility model;

[0015] Figure 2 It is a sectional view of the flue gas conveying pipeline of the utility model;

[0016] Figure 3 It is a sectional view of the filtering assembly of the utility model;

[0017] Figure 4 It is a perspective view of the flow-around assembly of the utility model.

[0018] In the drawing: 1, conveying system; 2, inverse surface cooler; 3, direct surface cooler; 4, first bidirectional adjusting cooler; 5, second bidirectional adjusting cooler; 6, third bidirectional adjusting cooler; 7, flue gas conveying pipeline; 8, first gas outlet pipeline; 9, second gas outlet pipeline; 10, third gas outlet pipeline; 11, temperature measuring instrument; 12, material bin; 13, material bin pipeline; 14, material bin valve; 15, filtering assembly; 151, first filter plate; 152, sliding frame; 153, mounting shell; 154, connecting spring; 155, second filter plate; 16, flow-around assembly; 161, first stirring paddle; 162, driving umbrella bevel gear; 163, driven umbrella bevel gear; 164, second stirring paddle. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model.

[0020] Please refer to Figures 1-4The utility model provides a circular flue gas conveying system for multi -functional rotary kiln, including conveying system 1, conveying system 1 includes flue gas conveying pipeline 7 and a plurality of silos 12, and the top of a plurality of silos 12 all are communicated with the bottom of flue gas conveying pipeline 7, and the one side of flue gas conveying pipeline 7 top is installed with reverse surface cooler 2, and the other side of flue gas conveying pipeline 7 top is installed with the surface cooler 3 of going with the trend, and the middle part of flue gas conveying pipeline 7 top is installed with first bidirectional adjusting cooler 4, and the second bidirectional adjusting cooler 5 of first bidirectional adjusting cooler 4 side is installed on flue gas conveying pipeline 7, and the third bidirectional adjusting cooler 6 of second bidirectional adjusting cooler 5 side is installed on flue gas conveying pipeline 7, and the inside fixed mounting of flue gas conveying pipeline 7 has a plurality of filter assemblies 15, and the one side of a plurality of filter assemblies 15 all is installed with flow -around component 16.

[0021] A plurality of filter assemblies 15 all include first filter plate 151 and second filter plate 155, and the bottom of second filter plate 155 is fixedly installed with a plurality of installation shell 153, and the bottom of a plurality of installation shell 153 all is slidably connected with sliding frame 152, and the bottom of a plurality of sliding frames 152 all is fixedly connected with the side of first filter plate 151 opposite, and the top of a plurality of sliding frames 152 all is fixedly installed with connecting spring 154, and the top of a plurality of connecting springs 154 is fixedly connected with the bottom of a plurality of installation shell 153 respectively, and second filter plate 155 and first filter plate 151 sequentially purify and filter the gas conveyed to flue gas conveying pipeline 7.

[0022] The both ends of first filter plate 151 are fixedly connected with flue gas conveying pipeline 7.

[0023] A plurality of flow -around components 16 all include two first stirring paddles 161 and two driving umbrella bevel gears 162, and one end of two first stirring paddles 161 is fixedly connected with one end of two driving umbrella bevel gears 162 respectively, and between two first stirring paddles 161, second stirring paddle 164 is equipped, and the top of second stirring paddle 164 is installed with driven umbrella bevel gear 163, and the outside of two driving umbrella bevel gears 162 all is meshingly connected with the outside of driven umbrella bevel gear 163, and the gas in rotary kiln is conveyed to flue gas conveying pipeline 7, and first stirring paddle 161 rotates under the impetus of the gas, and first stirring paddle 161 drives driving umbrella bevel gear 162 to rotate, and driving umbrella bevel gear 162 contacts with driven umbrella bevel gear 163, and driven umbrella bevel gear 163 drives second stirring paddle 164 to rotate, and the flowability of the flue gas injected into flue gas conveying pipeline 7 is improved.

[0024] The opposite end of two first stirring paddles 161 all is rotatably connected with the side of flue gas conveying pipeline 7 opposite, and the bottom of second stirring paddle 164 is rotatably connected with filter assembly 15.

[0025] The surface of the flue gas conveying pipeline 7 is fixedly installed with a plurality of temperature measuring instruments 11.

[0026] Each two adjacent material bins 12 are fixedly communicated with a material bin pipeline 13, the middle part of the plurality of material bin pipelines 13 is fixedly installed with a material bin valve 14, the surface of the first bidirectional adjusting cooler 4 is fixedly communicated with a first gas outlet pipeline 8, the surface of the second bidirectional adjusting cooler 5 is fixedly communicated with a second gas outlet pipeline 9, and the surface of the third bidirectional adjusting cooler 6 is fixedly communicated with a third gas outlet pipeline 10.

[0027] In use, the reverse surface cooler 2 adopts a herringbone pipeline, the last one of the reverse surface cooler 2 is connected with the first bidirectional adjusting cooler 4, the first bidirectional adjusting cooler 4 is connected with the second bidirectional adjusting cooler 5, the second bidirectional adjusting cooler 5 is connected with the third bidirectional adjusting cooler 6, the first bidirectional adjusting cooler 4, the second bidirectional adjusting cooler 5 and the third bidirectional adjusting cooler 6 are provided with the material bins 12, the material bins 12 pass through the material bin valves 14 controlled automatically or manually, the first bidirectional adjusting cooler 4, the second bidirectional adjusting cooler 5 and the third bidirectional adjusting cooler 6 are provided with control valves, i.e., herringbone pipeline valves, at the connection positions with the material bins 12, the first gas outlet pipeline 8, the second gas outlet pipeline 9 and the third gas outlet pipeline 10 are connected with the inlet of the pulse dust collector respectively, and the outlet of the pulse dust collector is connected with a clean gas pipeline, so as to complete the annular flue gas flow, the gas in the rotary kiln is conveyed into the flue gas conveying pipeline 7, the first stirring paddle 161 rotates under the pushing of the gas, the first stirring paddle 161 drives the driving umbrella bevel gear 162 to rotate, the driving umbrella bevel gear 162 contacts with the driven umbrella bevel gear 163, the driven umbrella bevel gear 163 drives the second stirring paddle 164 to rotate, the flowability of the flue gas injected into the flue gas conveying pipeline 7 is improved, and the second filter plate 155 and the first filter plate 151 sequentially purify and filter the gas conveyed into the flue gas conveying pipeline 7.

[0028] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An annular flue gas conveying system for a multi-functional rotary kiln, comprising a conveying system (1), characterized in that: The conveying system (1) comprises a flue gas conveying pipeline (7) and a plurality of bins (12), the top end of each of the plurality of bins (12) is communicated with the bottom end of the flue gas conveying pipeline (7), the top end of the flue gas conveying pipeline (7) is provided with a reverse surface cooler (2) on one side, the top end of the flue gas conveying pipeline (7) is provided with a forward surface cooler (3) on the other side, the top end of the flue gas conveying pipeline (7) is provided with a first bidirectional adjusting cooler (4) in the middle, the flue gas conveying pipeline (7) is provided with a second bidirectional adjusting cooler (5) on one side of the first bidirectional adjusting cooler (4), the flue gas conveying pipeline (7) is provided with a third bidirectional adjusting cooler (6) on one side of the second bidirectional adjusting cooler (5), a plurality of filter assemblies (15) are fixedly installed in the flue gas conveying pipeline (7), and each of the plurality of filter assemblies (15) is provided with a flow-around assembly (16) on one side.

2. The annular flue gas delivery system for a multi-functional rotary kiln of claim 1, wherein: Each of the plurality of filter assemblies (15) comprises a first filter plate (151) and a second filter plate (155), the bottom end of the second filter plate (155) is fixedly provided with a plurality of mounting shells (153), the bottom end of each of the plurality of mounting shells (153) is slidably connected with a sliding frame (152), the bottom end of each of the plurality of sliding frames (152) is fixedly connected with the side opposite to the first filter plate (151), the top end of each of the plurality of sliding frames (152) is fixedly provided with a connecting spring (154), and the top end of each of the plurality of connecting springs (154) is fixedly connected with the bottom end of each of the plurality of mounting shells (153).

3. The annular flue gas delivery system for a multi-functional rotary kiln of claim 2, wherein: Both ends of the first filter plate (151) are fixedly connected with the flue gas conveying pipeline (7).

4. The annular flue gas delivery system for a multi-functional rotary kiln of claim 1, wherein: Each of the plurality of flow-around assemblies (16) comprises two first stirring paddles (161) and two driving umbrella bevel gears (162), one end of each of the two first stirring paddles (161) is fixedly connected with one end of each of the two driving umbrella bevel gears (162), a second stirring paddle (164) is arranged between the two first stirring paddles (161), the top end of the second stirring paddle (164) is provided with a driven umbrella bevel gear (163), and the outer sides of the two driving umbrella bevel gears (162) are meshingly connected with the outer sides of the driven umbrella bevel gear (163).

5. The annular flue gas delivery system for a multi-functional rotary kiln of claim 4, wherein: The ends, away from each other, of the two first stirring paddles (161) are rotatably connected with the side opposite to the flue gas conveying pipeline (7), and the bottom end of the second stirring paddle (164) is rotatably connected with the filter assembly (15).

6. The annular flue gas delivery system for a multi-functional rotary kiln of claim 1, wherein: A plurality of temperature measuring instruments (11) are fixedly installed on the surface of the flue gas conveying pipeline (7).

7. The annular flue gas delivery system for a multi-functional rotary kiln of claim 1, wherein: A bin pipeline (13) is fixedly communicated between every two adjacent bins (12), a bin valve (14) is fixedly installed in the middle of each of the plurality of bin pipelines (13), a first gas outlet pipeline (8) is fixedly communicated on the surface of the first bidirectional adjusting cooler (4), a second gas outlet pipeline (9) is fixedly communicated on the surface of the second bidirectional adjusting cooler (5), and a third gas outlet pipeline (10) is fixedly communicated on the surface of the third bidirectional adjusting cooler (6).

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