Flue gas collecting mechanism for multifunctional rotary kiln production line

By introducing a flue gas collection mechanism into the multi-functional rotary kiln production line, and utilizing the forward herringbone channel and cooler for flue gas heat exchange and temperature control, the problems of flue gas heat waste and excessively high temperature are solved, and effective cooling and stable dust removal operations are achieved.

CN223826810UActive Publication Date: 2026-01-23HEZHANG LINGXUAN ENVIRONMENTAL PROTECTION TECH CO LTD +1
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Patent Information

Application Number
CN202520430968.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-01-23
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

Existing rotary kilns are not conducive to the effective utilization of heat from flue gas, resulting in heat waste and excessively high flue gas temperatures that burn out filter bags, causing production interruptions.

Method used

Design a flue gas collection mechanism for a multi-functional rotary kiln production line. The flue gas is introduced into the hopper through a forward herringbone channel and a forward surface cooler to exchange heat with the material. The temperature of the flue gas is monitored and controlled by a thermometer and a bidirectional regulating cooler. The surface of the filter bag is cleaned by a motor-driven scraper.

Benefits of technology

It achieves effective cooling and heat utilization of flue gas, avoids burning of filter bags, ensures production continuity, and maintains effective dust removal operation by cleaning the dust on the surface of filter bags.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a flue gas collecting mechanism for a multifunctional rotary kiln production line, which comprises a plurality of stock bins, thermometers are fixedly mounted at the tops of the obverse sides of the plurality of stock bins, and a forward surface cooler is fixedly communicated with the top between every two adjacent stock bins. According to the flue gas collecting mechanism for the multifunctional rotary kiln production line, due to the arrangement of the forward herringbone channel and the plurality of forward surface coolers, flue gas subjected to dust collection can be conveniently guided into the plurality of stock bins in sequence, and then heat exchange treatment is carried out on the flue gas and materials in the stock bins; according to the system, flue gas can be cooled while materials are preheated, the temperature of the flue gas entering all the stock bins is monitored through the multiple temperature measuring instruments, monitored information is fed back to the control panel, and then the three two-way adjusting coolers are controlled to sequentially cool the flue gas; and production interruption caused by the fact that the filter cloth bag is burnt out due to over-high smoke temperature is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of multifunctional rotary kiln production lines, specifically to a flue gas collection mechanism for multifunctional rotary kiln production lines. Background Technology

[0002] Rotary kilns are common industrial kilns, widely used in metallurgy, metallurgical waste recycling, municipal and industrial waste incineration, material drying, calcination, and non-ferrous metal volatilization smelting. Currently, kilns are generally single-function; a separate waste incineration kiln is built for waste incineration, a separate drying kiln for material drying, a separate calcination kiln for calcination, and a separate volatilization kiln for non-ferrous metal volatilization smelting and recycling. For small-scale operations, this construction method results in redundant kiln construction, consuming resources, requiring large investments, and leading to low utilization rates for individual kilns. Furthermore, existing rotary kilns are not conducive to the effective utilization of flue gas heat, resulting in heat waste, and are not suitable for effective flue gas cooling, leading to excessively high flue gas temperatures that damage filter bags and cause production interruptions.

[0003] To address the aforementioned issues, a flue gas collection mechanism for a multi-functional rotary kiln production line is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a flue gas collection mechanism for a multi-functional rotary kiln production line to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a flue gas collection mechanism for a multi-functional rotary kiln production line, comprising several hoppers, each hopper having a thermometer fixedly installed on its top front side, and a forward surface cooler fixedly connected to the top of each pair of adjacent hoppers, wherein a bidirectional regulating cooler is fixedly installed at the middle of the top of three forward surface coolers, and a forward herringbone channel and an air guide pipe are fixedly connected to the top of the two hoppers at the farthest ends, respectively. A dust collection chamber is fixedly connected to the end of the forward herringbone channel away from the hopper, and a dust collection box is fixedly connected to the end of the air guide pipe away from the hopper. An air guide channel is fixedly provided on the top of the inner side of the dust collection box, and several filter bags are fixedly connected to the top of the air guide channel. A fixed base is fixedly provided on one side of the top of the dust collection box, and a motor is fixedly installed on the bottom of the inner side of the fixed base.

[0006] The arrangement of forward-facing herringbone channels and several forward-facing surface coolers facilitates the sequential introduction of dust-collected flue gas into several hoppers, where it exchanges heat with the materials. This preheating process cools the flue gas while simultaneously preheating the materials. Several thermometers monitor the temperature of the flue gas entering each hopper and feed this information back to the control panel. This control panel then activates three bidirectional regulating coolers to sequentially cool the flue gas, preventing excessively high flue gas temperatures from burning the filter bags and causing production interruptions.

[0007] Preferably, the output end of the motor extends into the interior of the dust collector and is fixedly connected to a lead screw. The surface of the lead screw is threaded with a sleeve. A mounting plate is fixedly installed on one side of the sleeve. Several scraping components are fixedly installed in the middle of the mounting plate. The motor drives the lead screw to rotate, which in turn drives the sleeve to move up and down, which in turn drives the several mounting plates to move up and down, thereby driving the several scraping components to move up and down synchronously.

[0008] Preferably, several scraping components are respectively arranged corresponding to several filter bags, and the arrangement of several scraping components facilitates the cleaning of the surface of several filter bags.

[0009] Preferably, a guide sleeve is fixedly provided on the side of the mounting plate away from the sleeve, and a guide rod is inserted inside the guide sleeve. The top end of the guide rod is fixedly connected to the top of the inner side of the dust collector box. The cooperation between the guide rod and the guide sleeve facilitates the stable up and down movement of the mounting plate.

[0010] Preferably, a limiting component is fixedly provided at the bottom end of the lead screw, which can play a limiting role.

[0011] Preferably, the top end of the air guiding channel is fixedly connected to an exhaust pipe, and the top end of the exhaust pipe extends to the outside. The exhaust pipe facilitates the introduction of cooled and dust-removed flue gas into the desulfurization tower for desulfurization treatment.

[0012] Preferably, a drain pipe is fixedly connected to the bottom of the dust collector, and a control panel is fixedly installed on one side of the dust collector, so that dirt can be discharged through the drain pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The arrangement of forward herringbone channels and several forward surface coolers facilitates the sequential introduction of dust-collected flue gas into several hoppers, where it exchanges heat with the materials. This preheats the materials while simultaneously cooling the flue gas. Several thermometers monitor the temperature of the flue gas entering each hopper and feed the information back to the control panel. This control panel then activates three bidirectional regulating coolers to sequentially cool the flue gas, preventing excessively high flue gas temperatures from burning the filter bags and causing production interruptions.

[0015] 2. The motor drives the lead screw to rotate, which in turn drives the sleeve to move up and down, which in turn drives several mounting plates to move up and down, thereby driving several scraping parts to move up and down synchronously. The scraping parts clean the surface of several filter bags, preventing dust from accumulating on the surface of the filter bags and affecting the dust removal operation. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the dust collector box of this utility model;

[0018] Figure 3 This is an enlarged view of part A of this utility model;

[0019] Figure 4 This is an enlarged view of part B of the present invention.

[0020] In the diagram: 1. Hopper; 2. Temperature measuring instrument; 3. Forward surface cooler; 4. Bidirectional regulating cooler; 5. Forward herringbone channel; 6. Dust collection chamber; 7. Drain pipe; 8. Air guide pipe; 9. Dust collector; 10. Exhaust pipe; 11. Air guide channel; 12. Filter bag; 13. Fixing base; 14. Motor; 15. Lead screw; 16. Sleeve; 17. Mounting plate; 18. Scraper; 19. Guide sleeve; 20. Guide rod; 21. Control panel; 22. Limiting component. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] Please see Figure 1-4This utility model provides a flue gas collection mechanism for a multi-functional rotary kiln production line, including several hoppers 1. A temperature measuring instrument 2 is fixedly installed on the top of the front of each hopper 1. A forward surface cooler 3 is fixedly connected to the top of each pair of adjacent hoppers 1. A bidirectional regulating cooler 4 is fixedly installed in the middle of the top of each of the three forward surface coolers 3. A forward herringbone channel 5 and a gas guide pipe 8 are fixedly connected to the top of the two hoppers at the farthest ends, respectively. A dust collection chamber 6 is fixedly connected to the end of the forward herringbone channel 5 away from the hopper 1. A dust collection box 9 is fixedly connected to the end of the gas guide pipe 8 away from the hopper 1. A gas guide channel 11 is fixedly installed on the top of the inner side of the dust collection box 9. The top of the gas guide channel 11 is fixedly connected to... Several filter bags 12 are provided. A fixed base 13 is fixedly installed on one side of the top of the dust collection box 9. A motor 14 is fixedly installed on the bottom of the inner side of the fixed base 13. The arrangement of the forward herringbone channel 5 and several forward surface coolers 3 facilitates the sequential introduction of the dust-collected flue gas into several hoppers 1, where it exchanges heat with the material in the hopper 1. This allows for the preheating of the material while cooling the flue gas. Several thermometers 2 monitor the temperature of the flue gas after it enters each hopper 1 and feed the monitored information back to the control panel 21. This controls three bidirectional regulating coolers 4 to sequentially cool the flue gas, preventing the filter bags 12 from burning due to excessively high flue gas temperature and thus avoiding production interruption.

[0023] The output end of the motor 14 extends into the dust collector 9 and is fixedly connected to a lead screw 15. The lead screw 15 has a threaded sleeve 16 on its surface. A mounting plate 17 is fixedly installed on one side of the sleeve 16. Several scraper parts 18 are fixedly installed in the middle of the mounting plate 17. The scraper parts 18 are respectively set with several filter bags 12. A guide sleeve 19 is fixedly installed on the side of the mounting plate 17 away from the sleeve 16. A guide rod 20 is inserted inside the guide sleeve 19. The top of the guide rod 20 is fixedly connected to the top of the inner side of the dust collector 9.

[0024] In use, the motor 14 drives the lead screw 15 to rotate, which in turn drives the sleeve 16 to move up and down, which in turn drives several mounting plates 17 to move up and down, thereby driving several scraping parts 18 to move up and down synchronously. The arrangement of several scraping parts 18 facilitates the cleaning of the surface of several filter bags 12. The cooperation between the guide rod 20 and the guide sleeve 19 facilitates the stable up and down movement of the mounting plate 17.

[0025] A limiting component 22 is fixedly installed at the bottom end of the lead screw 15, an exhaust pipe 10 is fixedly connected to the top end of the air guide channel 11, the top end of the exhaust pipe 10 extends to the outside, a sewage pipe 7 is fixedly connected to the bottom end of the dust collector 9, and a control panel 21 is fixedly installed on one side of the dust collector 9.

[0026] In use, the limiting component 22 can play a limiting role, the exhaust pipe 10 facilitates the introduction of cooled and dust-removed flue gas into the desulfurization tower for desulfurization treatment, and the drain pipe 7 facilitates the discharge of dirt.

[0027] In this embodiment, the arrangement of the forward herringbone channel 5 and several forward surface coolers 3 facilitates the sequential introduction of the dust-collected flue gas into several hoppers 1, where it exchanges heat with the materials inside. This preheating of the materials and cooling of the flue gas are achieved simultaneously. Several thermometers 2 monitor the temperature of the flue gas entering each hopper 1 and feed the monitored information back to the control panel 21, which then controls three bidirectional regulating coolers 4 to sequentially cool the flue gas, preventing excessively high flue gas temperatures from burning out the materials. The filter bags 12 cause production to be interrupted. The flue gas is then introduced into the dust collector 9 through the air guide channel 11 and filtered by several filter bags 12. During the process, the motor 14 drives the lead screw 15 to rotate, which in turn drives the sleeve 16 to move up and down, which in turn drives several mounting plates 17 to move up and down, thereby driving several scraper parts 18 to move up and down synchronously. The scraper parts 18 clean the surface of several filter bags 12 to prevent dust from accumulating on the surface of the filter bags 12 and affecting the dust removal operation.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flue gas collection mechanism for a multi-functional rotary kiln production line, comprising several hoppers (1), characterized in that: A thermometer (2) is fixedly installed on the top of the front of several hoppers (1). A forward surface cooler (3) is fixedly connected between the top of each two adjacent hoppers (1). A bidirectional regulating cooler (4) is fixedly installed in the middle of the top of the three forward surface coolers (3). A forward herringbone channel (5) and an air guide pipe (8) are fixedly connected to the top of the two hoppers (1) at the far end. A dust collection chamber (6) is fixedly connected to the end of the forward herringbone channel (5) away from the hopper (1). A dust collection box (9) is fixedly connected to the end of the air guide pipe (8) away from the hopper (1). An air guide channel (11) is fixedly installed on the top of the inner side of the dust collection box (9). Several filter bags (12) are fixedly connected to the top of the air guide channel (11). A fixed seat (13) is fixedly installed on one side of the top of the dust collection box (9). A motor (14) is fixedly installed on the bottom of the inner side of the fixed seat (13).

2. The flue gas collection mechanism for a multi-functional rotary kiln production line according to claim 1, characterized in that: The output end of the motor (14) extends into the dust collector (9) and is fixedly connected to a lead screw (15). A sleeve (16) is threaded on the surface of the lead screw (15). A mounting plate (17) is fixedly installed on one side of the sleeve (16). Several scraper parts (18) are fixedly installed in the middle of the mounting plate (17).

3. The flue gas collection mechanism for a multi-functional rotary kiln production line according to claim 2, characterized in that: Several scraping components (18) are respectively set with several filter bags (12).

4. A flue gas collection mechanism for a multi-functional rotary kiln production line according to claim 2, characterized in that: A guide sleeve (19) is fixedly provided on the side of the mounting plate (17) away from the sleeve (16). A guide rod (20) is inserted inside the guide sleeve (19). The top end of the guide rod (20) is fixedly connected to the top of the inner side of the dust collector (9).

5. A flue gas collection mechanism for a multi-functional rotary kiln production line according to claim 2, characterized in that: The bottom end of the lead screw (15) is fixedly provided with a limiting member (22).

6. The flue gas collection mechanism for a multi-functional rotary kiln production line according to claim 1, characterized in that: The top end of the air guide channel (11) is fixedly connected to an exhaust pipe (10), and the top end of the exhaust pipe (10) extends to the outside.

7. The flue gas collection mechanism for a multi-functional rotary kiln production line according to claim 1, characterized in that: The bottom of the dust collector (9) is fixedly connected to a drain pipe (7), and a control panel (21) is fixedly installed on one side of the dust collector (9).