Accurate coal blending combustion device

Abstract

The utility model relates to the technical field of coal blending, and provides an accurate coal blending and blending combustion device which comprises a conveying belt, the top of the conveying belt is fixedly connected with a frame body, the top of the frame body is fixedly connected with a feeding frame, a plurality of separating plates are arranged in the feeding frame, the two sides of the interiors of the separating plates are fixedly connected with rod bodies, and the rod bodies are fixedly connected with the conveying belt. A clamping plate is fixedly connected between the two separating plates, a positioning plate is fixedly connected to the top of the clamping plate, a sliding plate is fixedly connected to the bottom end of the positioning plate, a motor is arranged on one side of the bottom of the sliding plate and fixedly connected with a reciprocating lead screw through an output shaft, and a cam is fixedly connected to the exterior of the reciprocating lead screw. And the multiple separating plates make contact with the interior of the feeding frame, a sliding groove is formed in one side of the exterior of the frame body, and the sliding plate is slidably connected with the sliding groove. According to the technical scheme, the problem that coal is inconvenient to screen, separate and crush in the prior art is solved, and the practical effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of coal blending, and in particular to a precise coal blending and burning device. Background Art

[0002] Among the power generation costs of coal-fired power plants, fuel cost is the largest cost, and with the gradual deepening of the marketization of power coal, the proportion of fuel cost in the power generation cost is getting larger and larger. The so-called coal blending refers to blending some supporting coal types on the basis of confirming a certain main coal type. The blending ratio changes according to the load trend of the unit. The price of the main coal type is higher, and the price of the supporting coal type is relatively low. Therefore, through blending, the fuel cost of power generation can be reduced. There are three main guiding principles for coal blending. First, within the desulfurization treatment capacity, try to increase the blending ratio of high-sulfur coal; second, try to increase the blending ratio of low-value coal without affecting the unit load and stable combustion of the boiler; third, fully coordinate the relationship between the calorific value and sulfur content of the coal entering the furnace, ensure that the calorific value meets the load requirements, and give full play to the desulfurization system's sulfur treatment capacity to maximize the benefits of coal blending.

[0003] The patent specification with the announcement number CN214406021U discloses a precise coal blending and burning device, comprising a mixing bin and a burning bin, wherein a base is fixedly connected to the bottom of the burning bin, and a rotating shaft passes through the right side of the burning bin, a handle is fixedly connected to the front end of the rotating shaft, and a coal blending bin is arranged above the handle in parallel, the mixing bin is located above the coal blending bin, and a raw material bin is fixedly connected above the mixing bin, and a raw material feed port passes through the top of the raw material bin. The precise coal blending and burning device allows the raw material feed port to more conveniently add materials to the raw material bin through the through-hole structure, and can more comprehensively feed materials from the raw material bin into the mixing bin when feeding with the mixing bin. The through-hole structure makes it more convenient to add materials to the coal bin and can more comprehensively feed materials to the mixing bin. At the same time, the glass inspection plate can have the most intuitive observation and judgment of the internal mixing situation of the entire mixing bin.

[0004] However, in the implementation of relevant technologies, it was found that the above technical solution has the following problems: the above device is not convenient for screening coal during use, it is difficult to screen the coal by size, and it is easy to cause incomplete firing during the blending process, which is not convenient for long-term use. Therefore, further improvement is needed. Utility Model Content

[0005] The utility model provides a precise coal blending and burning device, which solves the problem in the related art that it is inconvenient to screen, separate and crush the coal.

[0006] The technical solution of the utility model is as follows:

[0007] A precise coal blending and combustion device comprises a conveyor belt, a frame fixedly connected to the top of the conveyor belt, a feed frame fixedly connected to the top of the frame, a plurality of separation plates are provided inside the feed frame, and a rod body is fixedly connected on both sides of the plurality of separation plates, wherein a clamping plate is fixedly connected between two of the separation plates, a positioning plate fixedly connected to the top of the clamping plate, a slide plate fixedly connected to the bottom end of the positioning plate, a motor is provided on one side of the bottom of the slide, the motor is fixedly connected to a reciprocating screw via an output shaft, and a cam is fixedly connected to the outside of the reciprocating screw.

[0008] Preferably, the plurality of separation plates are in contact with the interior of the feed frame, and a sliding groove is provided on one side of the exterior of the frame.

[0009] Preferably, the slide plate is slidably connected to the sliding groove, and one side of the reciprocating screw extends into the interior of the frame and is connected to the frame via a bearing.

[0010] Preferably, the outer surface of the cam contacts the bottom of the slide, and a support frame is fixedly connected between the bottom of the motor and one side of the frame.

[0011] Preferably, a bearing seat is provided on the outside of the reciprocating screw, the bearing seat and the reciprocating screw are connected via a ball nut pair, and a connecting plate is fixedly connected to the outside of the bearing seat.

[0012] Preferably, the interior of the connecting plate contacts the outer surface of the reciprocating screw rod, and one side of the connecting plate is fixedly connected to two sliding rods.

[0013] Preferably, the two sliding rods extend into the interior of the frame and are slidably connected to the frame, and one end of the two sliding rods is fixedly connected to a block.

[0014] Preferably, a connecting rod is connected between the two blocks via a bearing, and a plurality of rollers are fixedly connected to the outside of the connecting rod.

[0015] Preferably, three breaking rods are fixedly connected to both sides of the outer portion of the roller, and the three breaking rods are distributed in a circular shape.

[0016] Preferably, a plurality of plates are fixedly connected to the interior of the frame, and tops of some of the plates are in contact with outer surfaces of the plurality of rollers respectively.

[0017] The working principle and beneficial effects of the utility model are as follows:

[0018] 1. In the present invention, the conveyor belt will synchronously drive the slide plate to move upward or downward during the rotation process. During the movement process, the slide plate will synchronously drive the positioning plate, the clamping plate, the rod body, and the separation plate to move up and down accordingly. In this process, the coal will be separated and then fall into the interior of the frame, so that the coal can be blended and separated from the agglomerates. The flow rate of the coal can be controlled, thereby ensuring the quality of the coal blending and solving the problem of inconvenient coal screening.

[0019] 2. In the present invention, when larger coal appears again, it will be blocked by the plate. At this time, the roller will rotate through friction with the plate during movement. The roller will synchronously drive the crushing rod to rotate during rotation. Then the crushing rod will crush the larger coal, which can facilitate the precise blending of coal and solve the problem of inconvenience in separating and crushing the coal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a partial structural diagram of the utility model;

[0023] Figure 3 For this utility model Figure 2 A magnified view of point A in the figure;

[0024] Figure 4 It is a schematic diagram of the partial structure separation of the utility model;

[0025] Figure 5 For this utility model Figure 4 Enlarged view of point B in .

[0026] In the figure: 1. Conveyor belt; 2. Frame; 3. Feed frame; 4. Separation plate; 5. Rod body; 6. Clamping plate; 7. Positioning plate; 8. Slide plate; 9. Reciprocating screw; 10. Motor; 11. Cam; 12. Connecting plate; 13. Bearing seat; 14. Sliding rod; 15. Block; 16. Connecting rod; 17. Roller; 18. Crushing rod; 19. Plate body; 20. Support frame. DETAILED DESCRIPTION

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

[0028] Example 1

[0029] like Figures 1 to 3 As shown, this embodiment proposes a precise coal blending and combustion device, including a conveyor belt 1, a frame 2 fixedly connected to the top of the conveyor belt 1, a feed frame 3 fixedly connected to the top of the frame 2, a plurality of separation plates 4 are provided inside the feed frame 3, and both sides of the plurality of separation plates 4 are fixedly connected to a rod body 5, wherein a clamping plate 6 is fixedly connected between two separation plates 4, a positioning plate 7 is fixedly connected to the top of the clamping plate 6, a slide plate 8 is fixedly connected to the bottom end of the positioning plate 7, a motor 10 is provided on one side of the bottom of the slide plate 8, the motor 10 is fixedly connected to a reciprocating screw 9 through an output shaft, and a cam 11 is fixedly connected to the outside of the reciprocating screw 9.

[0030] In this embodiment, the plurality of separation plates 4 are in contact with the interior of the feed frame 3 , and a sliding groove is provided on one side of the exterior of the frame body 2 to facilitate the movement of the separation plates 4 .

[0031] In this embodiment, the slide plate 8 is slidably connected to the sliding groove, and one side of the reciprocating screw rod 9 extends into the interior of the frame 2 and is connected to the frame 2 through a bearing, which can facilitate the support and rotation of the reciprocating screw rod 9.

[0032] In this embodiment, the outer surface of the cam 11 contacts the bottom of the slide 8 , and a support frame 20 is fixedly connected between the bottom of the motor 10 and one side of the frame 2 , which can facilitate the fixed connection of the motor 10 .

[0033] During use, when coal needs to be blended and burned, the staff needs to pour the coal into the inside of the feed frame 3 through external equipment, and then the separation plate 4 will block the coal. At this time, the staff will turn on the motor 10. After turning on, the motor 10 will control the reciprocating screw 9 to rotate. The reciprocating screw 9 will synchronously drive the cam 11 to rotate during the rotation. The cam 11 will synchronously drive the slide 8 to move up or down during the rotation. The slide 8 will synchronously drive the positioning plate 7, the card plate 6, the rod body 5, and the separation plate 4 to move up and down accordingly during the movement. In this process, the coal will be separated and then fall into the inside of the frame 2, so that the coal can be blended and agglomerated, and the flow rate of the coal can be controlled to ensure the quality of coal blending.

[0034] Example 2

[0035] like Figures 4 and 5 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes that a bearing seat 13 is provided on the outside of the reciprocating screw 9, and the bearing seat 13 is connected to the reciprocating screw 9 through a ball nut pair. The outside of the bearing seat 13 is fixedly connected to a connecting plate 12, which can facilitate the movement of the connecting plate 12.

[0036] In this embodiment, the interior of the connecting plate 12 contacts the outer surface of the reciprocating screw 9 , and two sliding rods 14 are fixedly connected to one side of the connecting plate 12 , so that the connecting plate 12 can drive the sliding rods 14 to move.

[0037] In this embodiment, the two sliding rods 14 extend into the interior of the frame 2 and are slidably connected to the frame 2 . One end of the two sliding rods 14 is fixedly connected to the block 15 , which can facilitate the movement of the block 15 .

[0038] In this embodiment, a connecting rod 16 is connected between the two blocks 15 via a bearing. A plurality of rollers 17 are fixedly connected to the outside of the connecting rod 16 to facilitate the movement of the connecting rod 16 .

[0039] In this embodiment, three breaking rods 18 are fixedly connected to both sides of the roller 17. The three breaking rods 18 are distributed in a circular shape, which makes it easier for the roller 17 to drive the breaking rods 18 to move.

[0040] In this embodiment, a plurality of plates 19 are fixedly connected to the interior of the frame 2 , and the tops of some of the plates 19 are in contact with the outer surfaces of the plurality of rollers 17 , which can facilitate the rotation of the rollers 17 .

[0041] During use, when the coal separated at the top falls into the interior of the frame 2, the coal will be blocked by the plate 19. Since the reciprocating screw 9 is rotating at this time, the reciprocating screw 9 will drive the bearing seat 13 to move horizontally. The bearing seat 13 will synchronously drive the connecting plate 12 and the sliding rod 14 to move during the movement. The sliding rod 14 will synchronously drive the block 15 and the connecting rod 16 to move during the movement. The connecting rod 16 will synchronously drive the roller 17 and the crushing rod 18 to move during the movement. Since some of the coal will fall through the plate 19 during the speed control of the separation plate 4, when a larger volume of coal appears again, it will be blocked by the plate 19. At this time, the roller 17 will rotate through friction with the plate 19 during the movement. The roller 17 will synchronously drive the crushing rod 18 to rotate during the rotation, and then the crushing rod 18 will crush the larger volume of coal, which can facilitate the precise blending of coal. The qualified coal will fall on the top of the conveyor belt 1 and be blended and burned through the transmission of the conveyor belt 1.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A precise coal blending and burning device, comprising a conveyor belt (1), characterized in that: The top of the conveyor belt (1) is fixedly connected to a frame (2), the top of the frame (2) is fixedly connected to a feed frame (3), a plurality of separation plates (4) are provided inside the feed frame (3), both sides of the plurality of separation plates (4) are fixedly connected to rod bodies (5), wherein a clamping plate (6) is fixedly connected between two of the separation plates (4), the top of the clamping plate (6) is fixedly connected to a positioning plate (7), the bottom end of the positioning plate (7) is fixedly connected to a slide plate (8), a motor (10) is provided on one side of the bottom of the slide plate (8), the motor (10) is fixedly connected to a reciprocating screw rod (9) via an output shaft, and the outside of the reciprocating screw rod (9) is fixedly connected to a cam (11).

2. The precise coal blending and combustion device according to claim 1, characterized in that: The plurality of separation plates (4) are in contact with the interior of the feed frame (3), and a sliding groove is provided on one side of the exterior of the frame body (2).

3. The precise coal blending and combustion device according to claim 2, characterized in that: The slide plate (8) is slidably connected to the sliding groove, and one side of the reciprocating screw rod (9) extends into the interior of the frame (2) and is connected to the frame (2) via a bearing.

4. The precise coal blending and combustion device according to claim 1, characterized in that: The outer surface of the cam (11) contacts the bottom of the slide (8), and a support frame (20) is fixedly connected between the bottom of the motor (10) and one side of the frame (2).

5. The precise coal blending and combustion device according to claim 1, characterized in that: A bearing seat (13) is provided on the outside of the reciprocating screw rod (9), and the bearing seat (13) and the reciprocating screw rod (9) are connected via a ball nut pair. A connecting plate (12) is fixedly connected to the outside of the bearing seat (13).

6. The precise coal blending and combustion device according to claim 5, characterized in that: The interior of the connecting plate (12) contacts the outer surface of the reciprocating screw rod (9), and one side of the connecting plate (12) is fixedly connected to two sliding rods (14).

7. The precise coal blending and combustion device according to claim 6, characterized in that: The two sliding rods (14) both extend into the interior of the frame (2) and are slidably connected to the frame (2), and one end of the two sliding rods (14) is fixedly connected to a block (15).

8. The precise coal blending and combustion device according to claim 7, characterized in that: A connecting rod (16) is connected between the two blocks (15) via a bearing, and a plurality of rollers (17) are fixedly connected to the outside of the connecting rod (16).

9. The precise coal blending and combustion device according to claim 8, characterized in that: Three crushing rods (18) are fixedly connected to both sides of the outside of the roller (17), and the three crushing rods (18) are distributed in a circular shape.

10. The precise coal blending and combustion device according to claim 9, characterized in that: A plurality of plates (19) are fixedly connected inside the frame (2), and the tops of some of the plates (19) are in contact with the outer surfaces of the plurality of rollers (17).

Images