Low-energy-consumption kiln head and kiln tail waste gas waste heat power generation device

Abstract

The utility model relates to the technical field of waste heat power generation, in particular to a low-energy-consumption kiln head and kiln tail waste gas waste heat power generation device. According to the technical scheme, the device comprises a mounting base, an air inlet pipe and a frame, wherein an air pre-heater, a steam generator and a waste heat boiler are mounted on the top end face of the mounting base; an air inlet pipe is arranged on the side end surface of the air pre-heater; a first air taking pipe is fixedly embedded into the front end face of the air inlet pipe, and a second air taking pipe is fixedly embedded into the rear end face of the air inlet pipe. A first mounting block and a second mounting block are welded to the two ends of the inner wall of the first air taking pipe and the two ends of the inner wall of the second air taking pipe correspondingly. A guide rod is welded on the mounting block I; a driving mechanism is mounted on the mounting block II, and a screw rod is arranged on an output shaft of the driving mechanism; a scraping plate is welded to the outer surface of the frame, and a first guide pipe is arranged on the side end face of the air pre-heater. According to the device, kiln head and kiln tail waste gas waste heat power generation is met, and the inner wall of the pipeline can be cleaned and maintained to avoid blockage during gas inlet.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat power generation, in particular to a low-energy consumption kiln head and kiln tail exhaust gas waste heat power generation device. Background Art

[0002] Waste heat power generation is a technology that converts excess heat energy in the production process into electrical energy. Waste heat power generation is not only energy-saving, but also beneficial to environmental protection. An important device for waste heat power generation is the waste heat boiler. It uses the heat in waste gas, waste liquid and other working media or combustible materials as a heat source to produce steam for power generation.

[0003] After searching, the patent announcement number CN219474316U discloses a waste heat power generation kiln head air intake duct, including a first tube body, a second tube body is sleeved on the surface of the first tube body, an insulation layer is filled between the interior of the second tube body and the first tube body, the interior of the first tube body is coated with insulation paint, two first fixing plates are fixedly sleeved on the surface of the first tube body, a second fixing plate is arranged on the other side of the first fixing plate, a first convex end is integrally formed on one side of the first fixing plate, a first groove which is clamped with the first convex end is opened on one side of the second fixing plate, and a second convex end is integrally formed on one side of the second fixing plate; it can have excellent sealing performance, extend the service life of the sealing ring, reduce the replacement burden of the staff, and at the same time can achieve good insulation effect, reduce the heat loss inside the first tube body, and has high practicality.

[0004] The CN219474316U in the prior art reduces the replacement burden of the staff during use, and at the same time can achieve good thermal insulation effect, reduce the heat loss inside the first tube body, and has high practicality. However, the exhaust gas containing smoke and dust from the kiln head and kiln tail flowing in the air intake duct for a long time will cause the particulate matter in the exhaust gas to adhere to the inside of the pipe. Therefore, it is still necessary to carry out perfect treatment to avoid blockage and affect the power generation air intake. Utility Model Content

[0005] The purpose of the utility model is to provide a low-energy consumption kiln head and kiln tail exhaust gas waste heat power generation device to solve the problems raised in the above background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a low-energy consumption kiln head and kiln tail exhaust gas waste heat power generation device, including a mounting base, an air intake pipe and a frame,

[0007] The top surface of the mounting base is equipped with an air preheater, a steam generator and a waste heat boiler;

[0008] The side end surface of the air preheater is provided with an air inlet pipe;

[0009] The front end surface of the air intake pipe is embedded and fixed with an air intake pipe 1, and the rear end surface of the air intake pipe is embedded and fixed with an air intake pipe 2;

[0010] Both ends of the inner walls of the air intake pipe 1 and the air intake pipe 2 are welded with a mounting block 1 and a mounting block 2;

[0011] A guide rod is welded on the mounting block;

[0012] A driving mechanism is installed on the second mounting block, and a screw rod is arranged on the output shaft of the driving mechanism;

[0013] A scraper is welded on the outer surface of the frame.

[0014] Preferably, a guide pipe 1 is provided on the side end surface of the air preheater, and the end of the guide pipe 1 facing away from the air preheater is arranged in the steam generator. By arranging the end of the guide pipe 1 facing away from the air preheater in the steam generator, the heat of the gas after being processed in the air preheater is discharged into the steam generator through the guide pipe 1.

[0015] Preferably, the side end surface of the steam generator is provided with a second guide pipe, and the end of the second guide pipe facing away from the steam generator is arranged in the waste heat boiler. By arranging the end of the second guide pipe facing away from the steam generator in the waste heat boiler, the heat is discharged into the steam generator for processing and then discharged into the waste heat boiler through the second guide pipe.

[0016] Preferably, the bottom end surface of the second air intake pipe is welded with a second support frame, and the bottom end surface of the second support frame is welded to the mounting base. The second air intake pipe is supported and mounted by welding the bottom end surface of the second support frame to the mounting base.

[0017] Preferably, the bottom end surface of the air intake pipe 1 is welded with a support frame 1, and the bottom end surface of the support frame 1 is welded to the mounting base. The bottom end surface of the support frame 1 is welded to the mounting base, so that the air intake pipe 1 is installed and supported.

[0018] Preferably, a support block is welded to the bottom end surface of the mounting base, and there are four support blocks in total, and the four support blocks are distributed in a rectangular array relative to the mounting base. The mounting base is mounted and supported by installing the support blocks on the foundation, thereby mounting and supporting the mounting base.

[0019] Preferably, the frame is slidably sleeved on the guide rod, and the frame is installed on the screw rod by means of threads. The frame can be limited by being slidably sleeved on the guide rod. When the frame is limited, the frame is installed on the screw rod by means of threads, so that a person can open the driving mechanism to drive the screw rod to rotate. When the screw rod rotates, the frame can be driven to move forward and backward in the air intake pipe 1 and the air intake pipe 2 according to the rotation direction.

[0020] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0021] 1. The utility model sets air intake pipe 1 and air intake pipe 2. When personnel recover the waste heat of the waste gas at the kiln head and kiln tail of the cement kiln, they can connect the air intake pipe 1 and air intake pipe 2 to the exhaust pipe at the kiln head and kiln tail. When connecting, a blower can be used to collect the waste gas and connect the air intake pipe 1 and air intake pipe 2, so that the waste gas can be discharged into the air intake pipe 1 and air intake pipe 2 and discharged into the air preheater through the air intake pipe. When the waste pipe is discharged, a gas filtering and processing device can be installed. When the waste gas is recovered, when the particulate waste in the gas adheres to the inside of the air intake pipe 1 and air intake pipe 2, the particulate waste in the gas is discharged through the sliding frame. The frame can be limited by being sleeved on the guide rod. When limited, the frame is installed on the screw rod through threads, so that the personnel can open the driving mechanism to drive the screw rod to rotate. When the screw rod rotates, it can drive the frame to move back and forth in the air intake duct one and the air intake duct two according to the rotation direction, so that the inner walls of the air intake duct one and the air intake duct two can be cleaned and maintained by the scraper, and the cleaned materials can be discharged through the two ends of the air intake duct one and the air intake duct two through the push of the scraper, so as to meet the later cleaning and maintenance, avoid blockage and cause difficulty in air intake, thereby reducing air intake energy consumption and performing low-energy waste heat recovery.

[0022] 2. The utility model sets a waste heat boiler. When personnel recover the waste heat from the exhaust gas at the kiln head and kiln tail of the cement kiln, the kiln head and kiln tail gas containing heat enters the steam generator and the air preheater for treatment and then enters the waste heat boiler for heat recovery. The waste heat boiler can be connected to the power generation equipment after utilizing the heat, so as to generate electricity with the waste heat of the exhaust gas. After power generation, it can be connected to the cement processing equipment for use, so as to perform low-energy operation and avoid heat waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0024] Figure 2 This is a cross-sectional structural diagram of the air intake duct of the utility model;

[0025] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0026] In the figure: 1. steam generator; 2. air preheater; 3. air intake duct 1; 4. support block; 5. mounting base; 6. support frame 1; 7. support frame 2; 8. air intake duct 2; 9. air inlet pipe; 10. guide pipe 1; 11. guide pipe 2; 12. waste heat boiler; 13. scraper; 14. guide rod; 15. mounting block 1; 16. mounting block 2; 17. driving mechanism; 18. screw rod; 19. frame. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] like Figure 1-Figure 3 As shown, the utility model proposes a low-energy consumption kiln head and kiln tail exhaust gas waste heat power generation device, including a mounting base 5, an air intake pipe 9 and a frame 19.

[0030] The top surface of the mounting base 5 is mounted with an air preheater 2, a steam generator 1 and a waste heat boiler 12;

[0031] An air inlet pipe 9 is provided on the side end surface of the air preheater 2;

[0032] The front end surface of the air inlet pipe 9 is embedded and fixed with the air intake pipe 1 3, and the rear end surface of the air inlet pipe 9 is embedded and fixed with the air intake pipe 2 8;

[0033] Both ends of the inner wall of the air intake pipe 1 3 and the air intake pipe 2 8 are welded with a mounting block 15 and a mounting block 2 16;

[0034] A guide rod 14 is welded on the mounting block 15;

[0035] A driving mechanism 17 is installed on the mounting block 16, and a screw rod 18 is arranged on the output shaft of the driving mechanism 17. As is well known to those skilled in the art, the provision of the driving mechanism 17 is commonplace, and it all belongs to conventional means or common knowledge, and will not be described in detail here. Those skilled in the art can select any one according to their needs or convenience, and the driving mechanism 17 drives the screw rod 18 to rotate;

[0036] The scraper 13 is welded to the outer surface of the frame 19 .

[0037] The bottom end surface of the air intake duct 8 is welded with a support frame 7, and the bottom end surface of the support frame 7 is welded to the mounting base 5. The bottom end surface of the support frame 7 is welded to the mounting base 5, so that the air intake duct 8 is supported and installed.

[0038] The bottom end surface of the air intake duct 3 is welded with a support frame 6, and the bottom end surface of the support frame 6 is welded to the mounting base 5. The bottom end surface of the support frame 6 is welded to the mounting base 5, so that the air intake duct 3 is installed and supported.

[0039] The frame 19 is slidably sleeved on the guide rod 14, and the frame 19 is installed on the screw rod 18 through threads. The frame 19 is slidably sleeved on the guide rod 14 to limit the position. When limiting the position, the frame 19 is installed on the screw rod 18 through threads, so that a person can open the driving mechanism 17 to drive the screw rod 18 to rotate. When the screw rod 18 rotates, it can drive the frame 19 to move back and forth in the air intake duct 1 3 and the air intake duct 2 8 according to the rotation direction.

[0040] Based on Example 1: When personnel recover waste heat from the exhaust gas at the kiln head and kiln tail of the cement kiln, they can connect the air intake duct 1 3 and the air intake duct 2 8 to the exhaust pipes at the kiln head and kiln tail. When connecting, a blower can be used to collect the exhaust gas and connect the air intake duct 1 3 and the air intake duct 2 8, so that the exhaust gas can be discharged into the air intake duct 1 3 and the air intake duct 2 8 and discharged into the air preheater 2 through the air intake pipe 9. When the waste pipe is discharged, a gas filtering and processing equipment can be installed. When the waste gas is recovered, when the particulate waste in the gas adheres to the inside of the air intake duct 1 3 and the air intake duct 2 8, the exhaust gas can be discharged into the air preheater 2 through the air intake pipe 9. The frame 19 is slidably sleeved on the guide rod 14 to limit the position. When limiting the position, the frame 19 is installed on the screw rod 18 through a thread, so that a person can open the driving mechanism 17 to drive the screw rod 18 to rotate. When the screw rod 18 rotates, the frame 19 can be driven to move back and forth in the air intake duct 1 3 and the air intake duct 2 8 according to the rotation direction, so that the inner walls of the air intake duct 1 3 and the air intake duct 2 8 can be cleaned and maintained by the scraper 13, and the cleaned materials can be driven to be discharged through the two ends of the air intake duct 1 3 and the air intake duct 2 8 by the push of the scraper 13.

[0041] Embodiment 2

[0042] like Figure 1-Figure 3 As shown, the utility model proposes a low-energy consumption kiln head and kiln tail exhaust gas waste heat power generation device. Compared with the first embodiment, this embodiment also includes: a mounting base 5, an air inlet pipe 9 and a frame 19.

[0043] The top surface of the mounting base 5 is mounted with an air preheater 2, a steam generator 1 and a waste heat boiler 12;

[0044] An air inlet pipe 9 is provided on the side end surface of the air preheater 2;

[0045] The front end surface of the air inlet pipe 9 is embedded and fixed with the air intake pipe 1 3, and the rear end surface of the air inlet pipe 9 is embedded and fixed with the air intake pipe 2 8;

[0046] Both ends of the inner wall of the air intake pipe 1 3 and the air intake pipe 2 8 are welded with a mounting block 15 and a mounting block 2 16;

[0047] A guide rod 14 is welded on the mounting block 15;

[0048] A driving mechanism 17 is installed on the second mounting block 16, and a screw rod 18 is arranged on the output shaft of the driving mechanism 17;

[0049] The scraper 13 is welded to the outer surface of the frame 19 .

[0050] And as is well known to those skilled in the art, the provision of the air preheater 2, the steam generator 1 and the waste heat boiler 12 is commonplace, and the waste heat boiler 12 can be used in conjunction with a power generation device to generate electricity, which are all conventional means or common knowledge and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0051] A guide pipe 10 is provided on the side end face of the air preheater 2, and the end of the guide pipe 10 facing away from the air preheater 2 is provided in the steam generator 1. The end of the guide pipe 10 facing away from the air preheater 2 is provided in the steam generator 1, so that the heat of the gas after being processed in the air preheater 2 is discharged into the steam generator 1 through the guide pipe 10.

[0052] A guide pipe 11 is provided on the side end face of the steam generator 1, and the end of the guide pipe 11 facing away from the steam generator 1 is arranged in the waste heat boiler 12. Through the end of the guide pipe 11 facing away from the steam generator 1 is arranged in the waste heat boiler 12, heat is discharged into the steam generator 1 for processing and then discharged into the waste heat boiler 12 through the guide pipe 11.

[0053] A support block 4 is welded to the bottom end surface of the mounting base 5. There are four support blocks 4 in total, and the four support blocks 4 are distributed in a rectangular array relative to the mounting base 5. The mounting base 5 is installed and supported by the support blocks 4 installed on the foundation, thereby installing and supporting the mounting base 5, and the bottom end surface of the support block 4 can be fitted with an anti-slip foot pad for coordinated support according to actual needs.

[0054] Based on Example 2: When personnel recover waste heat from the exhaust gas at the kiln head and kiln tail of the cement kiln, the kiln head and kiln tail gas containing heat enters the steam generator 1 and the air preheater 2 for treatment and then enters the waste heat boiler 12 to recover the heat. The waste heat boiler 12 can be connected to the power generation equipment after utilizing the heat, so as to generate electricity with the waste heat of the exhaust gas. After power generation, it can be connected to cement processing equipment for use, thereby performing low-energy consumption operations.

[0055] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A low-energy consumption kiln head and kiln tail waste gas waste heat power generation device, comprising a mounting base (5), an air inlet pipe (9) and a frame (19), characterized in that: An air preheater (2), a steam generator (1) and a waste heat boiler (12) are installed on the top surface of the mounting base (5); An air inlet pipe (9) is provided on the side end surface of the air preheater (2); The front end surface of the air intake pipe (9) is embedded with an air intake pipe 1 (3) and fixed thereto, and the rear end surface of the air intake pipe (9) is embedded with an air intake pipe 2 (8) and fixed thereto; Both ends of the inner walls of the air intake pipe 1 (3) and the air intake pipe 2 (8) are welded with a mounting block 1 (15) and a mounting block 2 (16); A guide rod (14) is welded on the mounting block 1 (15); A driving mechanism (17) is installed on the second mounting block (16), and a screw rod (18) is arranged on the output shaft of the driving mechanism (17); A scraper (13) is welded to the outer surface of the frame (19).

2. A low-energy consumption kiln head and kiln tail exhaust gas waste heat power generation device according to claim 1, characterized in that: A guide pipe 1 (10) is provided on the side end surface of the air preheater (2), and an end of the guide pipe 1 (10) facing away from the air preheater (2) is arranged in the steam generator (1).

3. A low-energy consumption kiln head and kiln tail exhaust gas waste heat power generation device according to claim 1, characterized in that: A second guide pipe (11) is provided on the side end surface of the steam generator (1), and the end of the second guide pipe (11) facing away from the steam generator (1) is arranged in the waste heat boiler (12).

4. A low-energy consumption kiln head and kiln tail exhaust gas waste heat power generation device according to claim 1, characterized in that: The bottom end surface of the second air intake pipe (8) is welded with a second support frame (7), and the bottom end surface of the second support frame (7) is welded to the mounting base (5).

5. The low-energy consumption kiln head and kiln tail exhaust gas waste heat power generation device according to claim 1 is characterized in that: The bottom end surface of the air intake pipe 1 (3) is welded with a support frame 1 (6), and the bottom end surface of the support frame 1 (6) is welded to the mounting base (5).

6. A low-energy consumption kiln head and kiln tail exhaust gas waste heat power generation device according to claim 1, characterized in that: A support block (4) is welded to the bottom end surface of the mounting base (5), and there are four support blocks (4) in total, and the four support blocks (4) are distributed in a rectangular array relative to the mounting base (5).

7. A low-energy consumption kiln head and kiln tail exhaust gas waste heat power generation device according to claim 1, characterized in that: The frame (19) is slidably sleeved on the guide rod (14), and the frame (19) is installed on the screw rod (18) through threads.

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