A boiler feeding component

Abstract

The utility model relates to the technical field of boilers, and discloses a boiler feeding assembly, comprising a support frame, wherein a crushing mechanism, a transmission mechanism and a feeding mechanism are sequentially arranged on the top of the support frame, wherein the crushing mechanism comprises a crushing box, wherein the crushing box is fixedly connected to the top of the support frame, wherein a crushing roller is installed inside the crushing box, wherein the transmission mechanism comprises a conveyor belt, wherein the conveyor belt is installed on the top of the support frame, wherein the feeding mechanism comprises a rotating rod, wherein a scraper is fixedly connected to the outside of the rotating rod, and wherein the boiler feeding assembly has the function of pre-crushing coal blocks so as to uniformly distribute coal powder inside the feeding mechanism to achieve full combustion, wherein the crushing mechanism is used to crush the coal blocks, and after the coal blocks are transmitted to the inside of the feeding mechanism through the transmission mechanism, the coal powder enters a feeding pipe under the action of the scraper rotating by gravity balance to achieve feeding, thereby solving the problem of unsatisfactory combustion of coal blocks during the use of the current boiler.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a boiler feeding component. Background Art

[0002] With the gradual easing of China's electricity supply and the country's emphasis on energy conservation and consumption reduction, thermal power plants have become popular. Thermal power plants are factories that use coal, oil, and natural gas as fuel to produce electricity. Its basic production process is: the fuel burns in the boiler to heat water to make steam, converting the chemical energy of the fuel into thermal energy, driving the water to heat and produce steam or thermal energy for factory or life use.

[0003] As a fossil fuel, coal has abundant reserves worldwide and provides a stable source of energy for boilers. It has high calorific value, low cost and mature technology, which ensures the stable and safe operation of boilers. The combustion process of coal is divided into three stages: preheating, combustion and burnout. Most coal is crushed before use so that the coal can be fully burned. However, after crushing, it is directly put into the boiler. The accumulated coal powder reduces the oxygen contact and there is still the problem of incomplete combustion. For this reason, we propose a boiler feeding component. Utility Model Content

[0004] In view of the disadvantage of unsatisfactory combustion of coal blocks during use of boilers in the prior art, the utility model provides a boiler feeding assembly, which has the advantage of pre-crushing the coal blocks to evenly distribute the coal powder inside the feeding mechanism to achieve sufficient combustion.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a boiler feeding assembly, comprising a support frame, the top of which is sequentially provided with a crushing mechanism, a transmission mechanism and a feeding mechanism;

[0006] The crushing mechanism comprises a crushing box, which is fixedly connected to the top of the support frame, and a crushing roller is installed inside the crushing box;

[0007] The transmission mechanism includes a conveyor belt, and the conveyor belt is installed on the top of the support frame;

[0008] The feeding mechanism comprises a rotating rod, a scraper is fixedly connected to the outside of the rotating rod, a through reserved hole is provided inside the scraper, and a protrusion is fixedly connected to the outside of the scraper.

[0009] Preferably, two crushing rollers are provided symmetrically with respect to the crushing box, and a driving motor is installed outside the crushing box to drive the two crushing rollers to rotate relative to each other through a reducer.

[0010] Preferably, two conveyor belts are provided, one of which is arranged in the bottom opening area of ​​the crushing box, and the other is arranged inclined with respect to the ground. A motor is arranged outside the support frame, and the output end of the motor is fixedly connected to the motor shaft, and the outside of the motor shaft is fixedly connected to a pulley, and a belt is arranged outside the pulley, and the belt is used to drive the two conveyor belts to rotate.

[0011] Preferably, the feeding mechanism also includes a mixing box, which is fixedly connected to the top of the support frame, a feeding port is provided on the top of the mixing box, a feeding pipe is fixedly connected to the tail of the mixing box, and a valve is installed inside the feeding pipe.

[0012] Preferably, a driving motor is installed on the outside of the mixing box, the rotating rod is fixedly connected to the output end of the driving motor, the top of the feeding pipe is fixedly connected to a fixing plate, the rotating rod is rotatably connected to the inside of the fixing plate, and the rotating rod can rotate.

[0013] Preferably, the scraper is configured as an inclined arc-shaped plate-like structure with uniform width. Four scrapers are provided, and the tail of the scraper abuts against the inner wall of the mixing box. The inner wall of the mixing box can be cleaned during the rotation of the scraper.

[0014] Preferably, the feeding mechanism is arranged to be inclined relative to the ground for feeding, and the feeding can be assisted by gravity.

[0015] Beneficial effects:

[0016] 1. The boiler feeding assembly uses a crushing mechanism to crush the coal blocks. After the coal blocks are transmitted to the inside of the feeding mechanism through a transmission mechanism, the coal powder enters the feeding pipe under the action of a scraper rotating under gravity balance to realize feeding.

[0017] 2. The boiler feeding assembly can close the feeding pipe through a valve, so that the connection between the boiler and the feeding pipe can be in a closed state to improve the sealing performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the conveyor belt of the utility model;

[0020] Figure 3 This is a schematic diagram of the scraper structure of the utility model.

[0021] In the figure: 1. Support frame; 2. Crushing mechanism; 3. Transmission mechanism; 4. Feeding mechanism; 5. Crushing box; 6. Crushing roller; 7. Conveyor belt; 8. Mixing box; 9. Feeding pipe; 10. Feeding port; 11. Valve; 12. Rotating rod; 13. Scraper; 14. Reserved hole; 15. Protrusion. DETAILED DESCRIPTION

[0022] 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.

[0023] Embodiment 1

[0024] See also Figure 1-3 , a boiler feeding assembly, comprising a support frame 1, a crushing mechanism 2, a transmission mechanism 3 and a feeding mechanism 4 are sequentially arranged on the top of the support frame 1;

[0025] The crushing mechanism 2 includes a crushing box 5, which is fixedly connected to the top of the support frame 1, and a crushing roller 6 is installed inside the crushing box 5;

[0026] The transmission mechanism 3 includes a conveyor belt 7, which is installed on the top of the support frame 1;

[0027] The feeding mechanism 4 comprises a rotating rod 12 , a scraper 13 is fixedly connected to the outside of the rotating rod 12 , a through reserved hole 14 is provided inside the scraper 13 , and a protrusion 15 is fixedly connected to the outside of the scraper 13 .

[0028] Among them, the feeding mechanism 4 is set to be inclined with respect to the ground for unloading, and gravity can be used to assist unloading. Two crushing rollers 6 are set symmetrically about the crushing box 5. A driving motor is installed outside the crushing box 5, which drives the two crushing rollers 6 to rotate relative to each other through a reducer.

[0029] Among them, two conveyor belts 7 are provided, one of which is arranged in the bottom opening area of ​​the crushing box 5, and the other is inclined with respect to the ground. A motor is arranged outside the support frame 1, and the output end of the motor is fixedly connected to the motor shaft, and the outside of the motor shaft is fixedly connected to a pulley, and a belt is arranged outside the pulley, and the belt is used to drive the two conveyor belts 7 to rotate.

[0030] Among them, the feeding mechanism 4 also includes a mixing box 8, which is fixedly connected to the top of the support frame 1. A feeding port 10 is arranged on the top of the mixing box 8. A driving motor is installed on the outside of the mixing box 8. A rotating rod 12 is fixedly connected to the output end of the driving motor. A fixed plate is fixedly connected to the top of the feeding pipe 9. The rotating rod 12 is rotatably connected to the inside of the fixed plate. The rotating rod 12 can rotate. The scraper 13 is arranged as an inclined arc-shaped plate structure with equal width. Four scrapers 13 are arranged.

[0031] Working principle: When the boiler feeding assembly is in use, the coal blocks are placed inside the crushing mechanism 2, and the crushing roller 6 is driven by the driving motor to rotate, so that the coal blocks are crushed inside the crushing box 5, and finally discharged through the bottom opening of the crushing box 5, and transmitted to the top of the feed port 10 through the transmission belt 7, and then enter the mixing box 8. Since the mixing box 8 is set at an angle, the rotating scraper 13 can drive the crushed coal powder to gradually move toward the feeding pipe 9 under the cooperation of gravity. In this process, the coal powder can flow through the reserved hole 14 in the separation area generated by the scraper 13 and the mixing box 8 to balance the coal powder content in each area. At the same time, because the side of the scraper 13 close to the rotating rod 12 is higher than the side close to the inner wall of the mixing box 8, the coal powder can move from the head of the scraper 13 to the tail during the rotation of the scraper 13. When passing through the protrusion 15, it is blocked and jumps, so that the coal powder can be separated from each other, the adhesion is reduced, and then it can be fully burned inside the boiler to improve efficiency.

[0032] Embodiment 2

[0033] See also Figure 1-3 Further on the basis of the first embodiment, the tail of the mixing box 8 is fixedly connected with a feeding pipe 9, a valve 11 is installed inside the feeding pipe 9, the tail of the scraper 13 abuts against the inner wall of the mixing box 8, and the scraper 13 can clean the inner wall of the mixing box 8 during its rotation.

[0034] Working principle: When the boiler feeding assembly is in use, as the scraper 13 follows the rotation of the rotating rod 12, the scraper 13 acts on the inner wall of the mixing box 8, which can clean the inner wall of the mixing box and improve the cleanliness of the inside of the mixing box 8. The feed pipe 9 can be closed through the valve 11, so that the connection between the boiler and the feed pipe 9 can be in a closed state, so as to improve the sealing of the device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boiler charging assembly, comprising a support frame (1), characterized in that: The top of the support frame (1) is provided with a crushing mechanism (2), a transmission mechanism (3) and a feeding mechanism (4) in sequence; The crushing mechanism (2) comprises a crushing box (5), the crushing box (5) is fixedly connected to the top of the support frame (1), and a crushing roller (6) is installed inside the crushing box (5); The transmission mechanism (3) comprises a conveyor belt (7), and the conveyor belt (7) is installed on the top of the support frame (1); The feeding mechanism (4) comprises a rotating rod (12), the outside of the rotating rod (12) is fixedly connected to a scraper (13), the inside of the scraper (13) is provided with a through reserved hole (14), and the outside of the scraper (13) is fixedly connected to a protrusion (15).

2. A boiler feeding assembly according to claim 1, characterized in that: The crushing rollers (6) are provided in two symmetrical positions with respect to the crushing box (5). A driving motor is installed outside the crushing box (5) to drive the two crushing rollers (6) to rotate relative to each other through a reducer.

3. A boiler feeding assembly according to claim 1, characterized in that: Two conveyor belts (7) are provided, one of which is arranged in the bottom opening area of ​​the crushing box (5), and the other is arranged inclined relative to the ground. A motor is arranged outside the support frame (1), the output end of the motor is fixedly connected to the motor shaft, the outside of the motor shaft is fixedly connected to a pulley, and a belt is arranged outside the pulley, and the belt is used to drive the two conveyor belts (7) to rotate.

4. A boiler feeding assembly according to claim 1, characterized in that: The feeding mechanism (4) further comprises a mixing box (8), wherein the mixing box (8) is fixedly connected to the top of the support frame (1), a feeding port (10) is arranged at the top of the mixing box (8), a feeding pipe (9) is fixedly connected to the rear of the mixing box (8), and a valve (11) is installed inside the feeding pipe (9).

5. A boiler feeding assembly according to claim 4, characterized in that: A driving motor is installed outside the mixing box (8), the rotating rod (12) is fixedly connected to the output end of the driving motor, the top of the feeding pipe (9) is fixedly connected to a fixing plate, and the rotating rod (12) is rotatably connected to the inside of the fixing plate.

6. A boiler feeding assembly according to claim 1, characterized in that: The scraper (13) is configured as an inclined arc-shaped plate-like structure with an equal width. Four scrapers (13) are provided, and the tail of the scraper (13) abuts against the inner wall of the mixing box (8).

7. A boiler feeding assembly according to claim 1, characterized in that: The feeding mechanism (4) is arranged to be inclined relative to the ground and is used for feeding materials.

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