An apparatus for a substitute fuel pre-burning furnace

Abstract

The utility model discloses a kind of alternative fuel preburning furnace device, it is related to alternative fuel incinerator technical field, including preburning furnace, the feed inlet connected in preburning furnace one side, the tertiary air inlet connected in preburning furnace top and the exhaust port being set in preburning furnace top one side, one end of the exhaust port is fixedly connected with filter box, the inside fixed mounting of filter box has filter plate, the one side of filter plate movably is provided with brush head, the top fixed mounting of filter box has rotating motor;In the utility model, by setting rotating motor, drive brush head moves in filter box, the residue particles filtered by filter plate are cleaned, and by belt pulley drive driving bevel gear transmission to driven bevel gear, make cam rotate in filter box, protruding block and filter plate abut, residue particles are conveniently dropped to ash box, residue particles are collected and prevented from being discharged to air with waste gas, reduce particulate pollution.

Description

Technical Field

[0001] This utility model relates to the field of alternative fuel incinerator technology, specifically to an alternative fuel pre-burning furnace device. Background Technology

[0002] Currently, the development of alternative fuel technologies in the cement industry follows many different routes. The development of core equipment also varies considerably. However, considering the overall cement industry, the use of alternative fuels, the development of incinerators, and the integration of cement kilns with precalciners have become widely chosen technical approaches. By pre-combusting alternative fuels in an incinerator before they enter the precalciner, the heat from the alternative fuels is used to pre-decompose the raw materials, reducing coal combustion and thus saving costs. Major cement plants are accelerating the green and low-carbon transformation of cement production through equipment upgrades, modifications, and the adoption of alternative fuels, striving to gain an advantage in the increasingly competitive cement industry.

[0003] A current Chinese patent (publication number CN217382916U) discloses a fixed grate pre-combustion furnace suitable for processing alternative fuels in cement kilns. The furnace includes a furnace body, a feed inlet, and an air injection port. A horizontal pyrolysis section is located inside the furnace body directly opposite the air injection port. A pyrolysis grate is installed on the pyrolysis section. A tertiary air inlet is located on the furnace body directly above the pyrolysis section to introduce tertiary air for heating the material in the pyrolysis section. This design accommodates both combustion and gasification combustion methods to accommodate different fuel characteristics, making it suitable for various types of alternative fuels. It integrates deeply with cement kilns, features a linear arrangement, and boasts high thermal efficiency, thus improving the performance of alternative fuels during application.

[0004] However, in actual use, when the pre-combustion furnace designed above undergoes a series of processes such as pyrolysis and combustion, the various components in the fuel react chemically with the air, producing a large amount of waste gas. This waste gas is discharged outward through the pre-designed exhaust port of the pre-combustion furnace. During the combustion process, some solid components contained in the fuel, such as ash, as well as any unburned small particulate matter, are mixed into the airflow under the entrainment effect of the airflow, thus becoming part of the waste gas. This waste gas is discharged outward through the exhaust port along with the waste gas, increasing the amount of inhalable particulate matter in the air and affecting air quality. Utility Model Content

[0005] The purpose of this invention is to provide an alternative fuel pre-burning furnace device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides an alternative fuel pre-burning furnace device, including a pre-burning furnace, a feed port connected to one side of the pre-burning furnace, a tertiary air inlet connected to the top of the pre-burning furnace, and an exhaust port set on one side of the top of the pre-burning furnace. A filter box is fixedly connected to one end of the exhaust port, a filter plate is fixedly installed inside the filter box, a brush head is movably arranged on one side of the filter plate, a rotating motor is fixedly installed on the top of the filter box, a first rotating shaft is fixedly connected to the drive end of the rotating motor, a screw is fixedly connected to one end of the first rotating shaft, the screw is rotatably arranged inside the filter box, an mounting plate is threaded onto the screw, and the brush head is fixedly installed on the side of the mounting plate near the filter plate.

[0007] Furthermore, a rotating rod is rotatably installed on one side of the inside of the filter box, and a cam is sleeved on the outside of the rotating rod. The cam movably abuts against the filter plate. A protrusion is inserted into the end of the cam, and a telescopic spring is fixedly connected inside the protrusion. One end of the telescopic spring is fixedly connected to the inner wall of the cam, and the other end of the telescopic spring is fixedly connected to the inner wall of the protrusion. A drive assembly is connected to one end of the rotating rod.

[0008] Furthermore, the drive assembly includes a driven bevel gear rotatably connected to the outside of the filter box. One end of the driven bevel gear is fixedly connected to a second rotating shaft. The driven bevel gear is fixedly connected to a rotating rod via the second rotating shaft. A pulley is sleeved on the first rotating shaft. The pulley is rotatably connected to the filter box. A connecting plate is fixedly connected to one side of the filter box. There are two pulleys, and a belt is tensioned on both pulleys. One of the pulleys is rotatably mounted on the top of the connecting plate. A connecting rod is rotatably connected to the bottom of the connecting plate. A driving bevel gear is fixedly connected to the bottom of the connecting rod. The driving bevel gear meshes with the driven bevel gear.

[0009] Furthermore, the filter box has an internal mounting groove, in which a dust collection box is movably inserted, and the dust collection box is located below the brush head.

[0010] Furthermore, there are two cams, each sleeved on both ends of the rotating rod.

[0011] Furthermore, a mounting bracket is fixedly installed on the top of the filter box. The mounting bracket is L-shaped. The rotating motor is fixedly installed on the top of the mounting bracket, and the pulley is rotated at the bottom of the mounting bracket.

[0012] Furthermore, a connector is fixedly installed on the outer side of the filter box, and the connecting rod is inserted into the inside of the connector.

[0013] Furthermore, a handle is provided on one side of the ash collection box, and the handle is shaped like a "U".

[0014] Compared with the prior art, the beneficial effects of this utility model are: by setting a rotating motor, the brush head is driven to move in the filter box to clean the residual particles filtered by the filter plate, and the active bevel gear is driven by the pulley to transmit to the driven bevel gear, so that the cam rotates in the filter box, the protrusion abuts against the filter plate, so that the residual particles fall into the dust collection box, collect the residual particles and prevent them from being emitted into the air with the exhaust gas, thereby reducing particulate pollution. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the exterior of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the internal structure of the filter box of this utility model;

[0017] Figure 3 This utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 4 This is a three-dimensional structural diagram of the filter box of this utility model.

[0019] In the diagram: 1. Pre-fired furnace; 2. Feed port; 3. Tertiary air inlet; 4. Exhaust port; 5. Filter box; 6. Filter plate; 7. Screw; 8. Mounting plate; 9. Brush head; 10. Rotating motor; 11. Pulley; 12. Belt; 13. Connecting plate; 14. Connecting rod; 15. Driving bevel gear; 16. Driven bevel gear; 17. Ash collection box; 18. Rotating rod; 19. Cam; 20. Protrusion. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4This utility model provides a technical solution: including a pre-firing furnace 1, a feed port 2 connected to one side of the pre-firing furnace 1, a tertiary air inlet 3 connected to the top of the pre-firing furnace 1, and an exhaust port 4 set on one side of the top of the pre-firing furnace 1. One end of the exhaust port 4 is fixedly connected to a filter box 5. A filter plate 6 is fixedly installed inside the filter box 5. A brush head 9 is movably arranged on one side of the filter plate 6. A rotating motor 10 is fixedly installed on the top of the filter box 5. A first rotating shaft is fixedly connected to the drive end of the rotating motor 10. A screw 7 is fixedly connected to one end of the first rotating shaft. The screw 7 is rotatably arranged inside the filter box 5. An installation plate 8 is threaded onto the screw 7. The brush head 9 is fixedly installed on the side of the installation plate 8 near the filter plate 6. An installation groove is opened inside the filter box 5. An ash collection box 17 is movably inserted into the installation groove. The ash collection box 17 is located below the brush head 9.

[0022] It should be noted that the filter box 5 has through holes on both sides, and the two through holes are set opposite to each other on both sides of the filter plate 6. The exhaust port 4 is connected to the through hole on one side of the filter box 5 near the brush head 9. An exhaust pipe is connected to the outside of the through hole on the other side of the filter box 5. A guide rod is installed on one side inside the filter box 5. The mounting plate 8 is inserted into the outside of the guide rod. A through groove is opened at the bottom of the filter box 5. The inner diameter of the through groove is smaller than that of the mounting groove. The through groove is connected to the mounting groove. The screw 7 and the guide rod are respectively installed on both sides of the through groove.

[0023] In practice, the alternative fuel is fed into the pre-burning furnace 1 through the feed port 2 for pre-burning. The pre-burning furnace 1 is equipped with a pyrolysis section grate. Tertiary air enters the furnace body through the tertiary air inlet 3 to heat the alternative fuel in the pyrolysis section. The exhaust gas generated after the alternative fuel is burned is discharged through the exhaust port 4. When the exhaust gas is discharged, it passes through the filter box 5. The filter plate 6 in the filter box 5 filters the residue particles that may be contained in the exhaust gas. The filter plate 6 is provided with multiple filter holes to prevent residue particles from being discharged into the air. The rotating motor 10 on the top of the filter box 5 is started. The rotating motor 10 drives the screw 7 to rotate. When the screw 7 rotates, the mounting plate 8 moves vertically in the filter box 5. The brush head 9 moves with the mounting plate 8 to clean the filter plate 6 to prevent particle accumulation and obstruction of exhaust gas flow. The residue particles cleaned by the brush head 9 can fall into the ash collection box 17.

[0024] See Figure 4 Inside the filter box 5, a rotating rod 18 is rotatably mounted on one side. A cam 19 is sleeved on the outside of the rotating rod 18. The cam 19 movably abuts against the filter plate 6. A protrusion 20 is inserted into the end of the cam 19. A telescopic spring is fixedly connected inside the protrusion 20. One end of the telescopic spring is fixedly connected to the inner wall of the cam 19, and the other end of the telescopic spring is fixedly connected to the inner wall of the protrusion 20. One end of the rotating rod 18 is connected to a drive assembly.

[0025] By setting the rotating rod 18, when the rotating rod 18 rotates, the cam 19 and the protrusion 20 move to abut against the filter plate 6. When the protrusion 20 rotates to contact the filter plate 6, the filter plate 6 is subjected to force and vibrates. A part of the protrusion 20 retracts into the cam 19 to prevent damage to the filter plate 6. When the protrusion 20 rotates away from the filter plate 6 with the cam 19, the telescopic spring inside the protrusion 20 resets, so that the protrusion 20 extends out of the cam 19 again and continues to abut against the filter plate 6, so that the residual particles attached to the filter plate 6 are shaken off and fall off.

[0026] See Figure 2 and Figure 3 The drive assembly includes a driven bevel gear 16 rotatably connected to the outside of the filter box 5. One end of the driven bevel gear 16 is fixedly connected to a second rotating shaft. The driven bevel gear 16 is fixedly connected to a rotating rod 18 through the second rotating shaft. A pulley 11 is sleeved on the first rotating shaft. The pulley 11 is rotatably connected to the filter box 5. A connecting plate 13 is fixedly connected to one side of the filter box 5. There are two pulleys 11. A belt 12 is tensioned on both pulleys 11. One of the pulleys 11 is rotatably mounted on the top of the connecting plate 13. A connecting rod 14 is rotatably connected to the bottom of the connecting plate 13. A driving bevel gear 15 is fixedly connected to the bottom of the connecting rod 14. The driving bevel gear 15 meshes with the driven bevel gear 16.

[0027] By setting up a drive assembly, when the brush head 9 is driven by the rotating motor 10 to clean, the rotating motor 10 synchronously drives the pulley 11 to rotate. The two pulleys 11 are driven by the belt 12. The pulley 11 located at the top of the connecting plate 13 synchronously drives the connecting rod 14 to rotate. When the connecting rod 14 rotates, the driving bevel gear 15 rotates synchronously. The driven bevel gear 16 meshed with the driving bevel gear 15 rotates and drives the rotating rod 18 to rotate. When the rotating rod 18 rotates, the cam 19 and the protrusion 20 move to abut against the filter plate 6. When the protrusion 20 rotates to contact the filter plate 6, the filter plate 6 is subjected to force and vibrates. A part of the protrusion 20 retracts into the cam 19 to prevent damage to the filter plate 6. When the protrusion 20 rotates away from the filter plate 6 with the cam 19, the telescopic spring inside the protrusion 20 resets, so that the protrusion 20 extends out of the cam 19 again and continues to abut against the filter plate 6, so that the residual particles attached to the filter plate 6 are shaken off and fall off.

[0028] See Figure 4 There are two cams 19, which are respectively sleeved on both ends of the rotating rod 18.

[0029] By setting two cams 19, the effect of the cams 19 and the protrusions 20 on the vibration of the filter plate 6 is improved, and the residue is made easier to fall off the filter plate 6 when the brush head 9 is cleaning.

[0030] See Figure 3A mounting bracket is fixedly installed on the top of the filter box 5. The mounting bracket is L-shaped. The rotating motor 10 is fixedly installed on the top of the mounting bracket, and the pulley 11 is located at the bottom of the mounting bracket.

[0031] By setting an "L"-shaped mounting bracket, it is easy to rotate the motor 10 to drive the pulley 11 to rotate, so that the two pulleys 11 rotate on the same horizontal plane.

[0032] See Figure 3 A connector is fixedly installed on the outer side of the filter box 5, and the connecting rod 14 is inserted into the inside of the connector.

[0033] By providing a connector, the connecting rod 14 can rotate inside the connector, which facilitates the improvement of the stability of the connecting rod 14 rotating outside the filter box 5.

[0034] See Figure 2 A handle is provided on one side of the ash collection box 17, and the handle is shaped like a "U".

[0035] By providing a handle, it is easy for staff to remove the ash collection box 17 from the filter box 5 and process the ash inside the ash collection box 17.

[0036] Working principle: When the device is in use, the alternative fuel is fed into the pre-burning furnace 1 through the feed port 2 for pre-burning. The pre-burning furnace 1 is equipped with a pyrolysis section grate. Tertiary air enters the furnace body through the tertiary air inlet 3 to heat the alternative fuel on the pyrolysis section. The exhaust gas generated after the alternative fuel is burned is discharged through the exhaust port 4. When the exhaust gas is discharged, it passes through the filter box 5. The filter plate 6 in the filter box 5 filters the residue particles that may be contained in the exhaust gas to prevent the residue particles from being emitted into the air. The rotating motor 10 on the top of the filter box 5 is started. The rotating motor 10 drives the screw 7 to rotate. When the screw 7 rotates, the mounting plate 8 moves vertically in the filter box 5. The brush head 9 moves with the mounting plate 8 to clean the filter plate 6 to prevent particle accumulation and obstruction of exhaust gas flow. The residue particles cleaned by the brush head 9 can fall into the ash collection box 17.

[0037] When the brush head 9 is driven by the rotating motor 10 to clean, the rotating motor 10 synchronously drives the pulley 11 to rotate. The two pulleys 11 are driven by the belt 12. The pulley 11 located at the top of the connecting plate 13 synchronously drives the connecting rod 14 to rotate. When the connecting rod 14 rotates, the driving bevel gear 15 rotates synchronously. The driven bevel gear 16 meshed with the driving bevel gear 15 rotates and drives the rotating rod 18 to rotate. When the rotating rod 18 rotates, the cam 19 and the protrusion 20 move to abut against the filter plate 6. When the protrusion 20 rotates to contact the filter plate 6, the filter plate 6 is subjected to force and vibrates. A part of the protrusion 20 retracts into the cam 19 to prevent damage to the filter plate 6. When the protrusion 20 rotates away from the filter plate 6 with the cam 19, the telescopic spring inside the protrusion 20 resets, so that the protrusion 20 extends out of the cam 19 again and continues to abut against the filter plate 6, so that the residual particles attached to the filter plate 6 are shaken off and fall off.

Claims

1. A pre-firing furnace device for alternative fuels, comprising a pre-firing furnace (1), a feed inlet (2) connected to one side of the pre-firing furnace (1), a tertiary air inlet (3) connected to the top of the pre-firing furnace (1), and an exhaust port (4) disposed on one side of the top of the pre-firing furnace (1), characterized in that: One end of the exhaust port (4) is fixedly connected to a filter box (5). A filter plate (6) is fixedly installed inside the filter box (5). A brush head (9) is movably arranged on one side of the filter plate (6). A rotating motor (10) is fixedly installed on the top of the filter box (5). A first rotating shaft is fixedly connected to the drive end of the rotating motor (10). A screw (7) is fixedly connected to one end of the first rotating shaft. The screw (7) is rotatably arranged inside the filter box (5). An mounting plate (8) is threaded onto the screw (7). The brush head (9) is fixedly installed on the side of the mounting plate (8) near the filter plate (6).

2. The alternative fuel pre-combustion furnace device as described in claim 1, characterized in that: A rotating rod (18) is rotatably installed on one side of the inside of the filter box (5). A cam (19) is sleeved on the outside of the rotating rod (18). The cam (19) movably abuts against the filter plate (6). A protrusion (20) is inserted into the end of the cam (19). A telescopic spring is fixedly connected inside the protrusion (20). One end of the telescopic spring is fixedly connected to the inner wall of the cam (19), and the other end of the telescopic spring is fixedly connected to the inner wall of the protrusion (20). A drive assembly is connected to one end of the rotating rod (18).

3. The alternative fuel pre-combustion furnace device as described in claim 2, characterized in that: The drive assembly includes a driven bevel gear (16) rotatably connected to the outside of the filter box (5). One end of the driven bevel gear (16) is fixedly connected to a second rotating shaft. The driven bevel gear (16) is fixedly connected to a rotating rod (18) through the second rotating shaft. A pulley (11) is sleeved on the first rotating shaft. The pulley (11) is rotatably connected to the filter box (5). A connecting plate (13) is fixedly connected to one side of the filter box (5). There are two pulleys (11). A belt (12) is tensioned on both pulleys (11). One of the pulleys (11) is rotatably mounted on the top of the connecting plate (13). A connecting rod (14) is rotatably connected to the bottom of the connecting plate (13). A driving bevel gear (15) is fixedly connected to the bottom of the connecting rod (14). The driving bevel gear (15) meshes with the driven bevel gear (16).

4. The alternative fuel pre-combustion furnace device as described in claim 3, characterized in that: The filter box (5) has an installation slot inside, and a dust collection box (17) is movably inserted into the installation slot. The dust collection box (17) is located below the brush head (9).

5. The alternative fuel pre-combustion furnace device as described in claim 4, characterized in that: The number of cams (19) is set to two, and the two cams (19) are respectively sleeved on both ends of the rotating rod (18).

6. The alternative fuel pre-combustion furnace device as described in claim 5, characterized in that: The top of the filter box (5) is fixedly mounted with a mounting frame, the mounting frame is set in the shape of "L", the rotating motor (10) is fixedly mounted on the top of the mounting frame, and the pulley (11) is rotatably mounted at the bottom of the mounting frame.

7. The alternative fuel pre-combustion furnace device as described in claim 6, characterized in that: A connector is fixedly installed on the outer side of the filter box (5), and the connecting rod (14) is inserted into the inside of the connector.

8. The alternative fuel pre-burning furnace device as described in claim 7, characterized in that: The ash collection box (17) is provided with a handle on one side, and the handle is shaped like a "U".

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