Adjustable pulverized coal spray gun

Abstract

The utility model relates to the technical field of pulverized coal spray guns, in particular to an adjustable pulverized coal spray gun which comprises a box body, an adjusting mechanism and a screening mechanism, a feeding port is formed in the surface of the front end of the box body, a discharging port and the adjusting mechanism are installed on the surface of the back of the box body, the adjusting mechanism is installed in the box body, and the screening mechanism is installed in the box body. The adjusting mechanism can adjust and control the spraying flow of the pulverized coal in a self-adaptive mode, the screening mechanism is installed in the box body, the screening mechanism can screen out the pulverized coal with the large particle diameter in the pulverized coal, unnecessary waste of resources is avoided, and the screening efficiency is improved. Through the cooperation of the adjusting mechanism and the screening mechanism, the spraying amount of pulverized coal can be adjusted and controlled, meanwhile, large pulverized coal is screened out, and resource waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal powder spray guns, in particular to an adjustable coal powder spray gun. Background Art

[0002] Pulverized coal injection is one of the most important means of increasing smelting intensity and reducing production costs in blast furnace production. Typically, pulverized coal is ejected from the lance into the tuyere, where it is heated and burned within the blowpipe and tuyere through mixing, convection, and radiation with the high-velocity hot air flow. As a crucial device for pulverized coal injection in blast furnaces, the structure and performance of the lance directly impacts many aspects, including the pulverized coal combustion rate, the coal-coke replacement ratio, the breadth and uniformity of the injection, and the lifespan of the tuyere.

[0003] In order to better and fully burn the coal, the existing method is to crush the coal into coal powder for combustion. However, due to the inevitable omissions in the crushing process, the existing coal powder spray gun lacks the function of screening the coal powder particles when in use, resulting in incomplete combustion of the coal powder. In addition, the existing coal powder spray gun can only be operated by switching and lacks effective flow regulation.

[0004] Therefore, we propose an adjustable pulverized coal spray gun. Utility Model Content

[0005] The purpose of the utility model is to provide an adjustable coal powder spray gun to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable pulverized coal spray gun, comprising a box body, an adjusting mechanism and a screening mechanism;

[0007] A box body, wherein a material inlet is installed on the front surface of the box body, and a material outlet is installed on the back surface of the box body;

[0008] An adjusting mechanism is installed inside the box body, and the adjusting mechanism can adaptively adjust and control the injection flow rate of the pulverized coal;

[0009] Screening mechanism: A screening mechanism is installed inside the box body, and the screening mechanism can screen out coal powder with larger particle diameters in the coal powder, avoiding unnecessary waste of resources.

[0010] Preferably, the adjustment mechanism includes a flow port, connecting boxes are symmetrically fixedly connected to the two side surfaces of the box body, a first blocking plate is slidably installed inside the box body, a second blocking plate is slidably installed inside the box body, and flow ports are opened inside the first blocking plate and the second blocking plate.

[0011] Preferably, the top surface of the box body is symmetrically provided with movable grooves, a connecting block is installed within the movable groove, and the connecting block is fixedly connected to the first blocking plate and the second blocking plate respectively. A winch is rotatably mounted on the top surface of the box body, a connecting rope is installed between the connecting block and the winch, a motor bracket is installed on the top surface of the winch, a drive motor is installed on the top surface of the motor bracket, and the output end of the drive motor is fixedly connected to the winch. When the drive motor is started, the drive motor drives the winch to rotate, and the rotation of the winch pulls the connecting block to move within the movable groove via the connecting rope. The movement of the connecting block simultaneously drives the first blocking plate and the second blocking plate to move together.

[0012] Preferably, the screening mechanism includes spiral blades, a filter cartridge is symmetrically fixedly connected to the interior of the box body, a first through-hole is formed on the outer surface of one half of the filter cartridge, and a second through-hole is formed on the outer surface of the other half of the filter cartridge, a rotating rod is symmetrically mounted at the center of the interior of the filter cartridge, and the spiral blades are fixedly connected to the outer surface of the rotating rod. First, the rotating motor is started, and the operation of the rotating motor drives the connecting gear to rotate, and the rotation of the connecting gear drives the rotating rod to rotate, and the rotation of the rotating rod drives the spiral blades fixedly connected to the outer side to rotate.

[0013] Preferably, the diameter of the first through hole is larger than the diameter of the second through hole.

[0014] Preferably, the top surface of the box body is symmetrically meshed and rotatably installed with connecting gears, and the connecting gears are fixedly connected to the rotating rod. A rotating motor is installed on the top surface of one of the connecting gears, and the output end of the rotating motor is fixedly connected to the connecting gear.

[0015] Preferably, a recovery box is installed on the bottom surface of the box body.

[0016] Compared with the prior art, the beneficial effects of the present invention are: through the cooperation of the connecting box, the first baffle plate, the second baffle plate, the flow port, the movable groove, the connecting block, the winch, the connecting rope, the motor bracket and the driving motor, the coal powder spray flow rate can be adaptively adjusted and controlled; through the cooperation of the filter cartridge, the first through hole, the second through hole, the rotating rod, the spiral blade, the connecting gear, the rotating motor and the recovery box, the coal powder with larger particle diameter can be screened out, thereby avoiding unnecessary waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the overall structural diagrams of the utility model;

[0018] Figure 2 This is the second schematic diagram of the overall structure of the utility model;

[0019] Figure 3 This is one of the cross-sectional structural diagrams of the present utility model;

[0020] Figure 4 This is the second schematic cross-sectional structure diagram of the present invention.

[0021] In the figure: 1. Box body; 2. Feed inlet; 3. Discharge outlet; 4. Connecting box; 5. First baffle plate; 6. Second baffle plate; 7. Flow port; 8. Moving slot; 9. Connecting block; 10. Winch; 11. Connecting rope; 12. Motor bracket; 13. Driving motor; 14. Filter cartridge; 15. First through hole; 16. Second through hole; 17. Rotating rod; 18. Spiral blade; 19. Connecting gear; 20. Rotating motor; 21. Recovery box. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in 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.

[0023] See also Figure 1-4 , an adjustable coal powder spray gun, comprising, a box body 1, an adjusting mechanism and a screening mechanism;

[0024] A box body 1, wherein a material inlet 2 is installed on the front surface of the box body 1, and a material outlet 3 is installed on the back surface of the box body 1;

[0025] An adjusting mechanism is installed inside the box body 1, and the adjusting mechanism can adaptively adjust and control the injection flow rate of the pulverized coal;

[0026] Screening mechanism: A screening mechanism is installed inside the box body 1. The screening mechanism can screen out coal powder with larger particle diameters in the coal powder, thereby avoiding unnecessary waste of resources.

[0027] See also Figure 1-4 The regulating mechanism includes a flow port 7, and the connection box 4 is symmetrically fixedly connected to the two side surfaces of the box body 1. A first blocking plate 5 is slidably installed inside the box body 1, and a second blocking plate 6 is slidably installed inside the box body 1. The first blocking plate 5 and the second blocking plate 6 are both provided with a flow port 7.

[0028] See also Figure 1-4The top surface of the box body 1 is symmetrically provided with movable grooves 8, and a connecting block 9 is installed inside the movable groove 8. The connecting block 9 is fixedly connected to the first blocking plate 5 and the second blocking plate 6 respectively. A winch 10 is rotatably installed on the top surface of the box body 1, and a connecting rope 11 is installed between the connecting block 9 and the winch 10. A motor bracket 12 is installed on the top surface of the winch 10, and a driving motor 13 is installed on the top surface of the motor bracket 12, and the output end of the driving motor 13 is fixedly connected to the winch 10. When the driving motor 13 is started, the driving motor 13 drives the winch 10 to rotate. When the winch 10 rotates, the connecting block 9 is pulled to move in the movable groove 8 through the connecting rope 11. When the connecting block 9 moves, the first blocking plate 5 and the second blocking plate 6 are moved together.

[0029] See also Figure 1-4 The screening mechanism includes spiral blades 18. A filter cartridge 14 is symmetrically fixedly connected to the interior of the box body 1. A first through-hole 15 is formed on one half of the outer surface of the filter cartridge 14, and a second through-hole 16 is formed on the other half of the outer surface of the filter cartridge 14. A rotating rod 17 is symmetrically mounted at the center of the filter cartridge 14. The outer surface of the rotating rod 17 is fixedly connected to the spiral blades 18. First, the rotating motor 20 is started. The operation of the rotating motor 20 drives the connecting gear 19 to rotate. The rotation of the connecting gear 19 drives the rotating rod 17 to rotate. The rotation of the rotating rod 17 drives the spiral blades 18 fixedly connected to the outer side to rotate.

[0030] See also Figure 1-4 , the diameter of the first through hole 15 is greater than the diameter of the second through hole 16.

[0031] See also Figure 1-4 The top surface of the box body 1 is symmetrically meshed and rotatably installed with connecting gears 19, and the connecting gears 19 are fixedly connected to the rotating rod 17. A rotating motor 20 is installed on the top surface of one of the connecting gears 19, and the output end of the rotating motor 20 is fixedly connected to the connecting gear 19.

[0032] See also Figure 1-4 A recovery box 21 is installed on the bottom surface of the box body 1.

[0033] Working principle: When the device needs to be used, first start the rotating motor 20. The rotating motor 20 drives the connecting gear 19 to rotate. The rotation of the connecting gear 19 drives the rotating rod 17 to rotate. The rotation of the rotating rod 17 drives the spiral blade 18 fixed on the outside to rotate. Due to the different diameters of the first through hole 15 and the second through hole 16, the spiral blade 18 can transport the intercepted coal powder to the recovery box 21 for reuse. At the same time, start the driving motor 13. The driving motor 13 drives the winch 10 to rotate. The rotation of the winch 10 pulls the connecting block 9 to move in the moving groove 8 through the connecting rope 11. When the connecting block 9 moves, it drives the first baffle plate 5 and the second baffle plate 6 to move together until the size of the flow port 7 between the first baffle plate 5 and the second baffle plate 6 is adjusted, thereby realizing adaptive adjustment and control of the coal powder spray flow rate.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

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

Claims

1. An adjustable pulverized coal spray gun, characterized by: include, Box body (1), adjustment mechanism and screening mechanism; A box body (1), wherein a material inlet (2) is mounted on the front surface of the box body (1), and a material outlet (3) is mounted on the back surface of the box body (1); An adjustment mechanism is installed inside the box body (1), the adjustment mechanism comprises a first blocking plate (5), connecting boxes (4) are symmetrically fixedly connected to the two side surfaces of the box body (1), and a second blocking plate (6) is slidably installed inside the box body (1); A screening mechanism is installed inside the box body (1), the screening mechanism comprising a filter cartridge (14), the filter cartridge (14) being symmetrically fixedly connected inside the box body (1), a first through hole (15) being provided on one half of the outer surface of the filter cartridge (14), and a second through hole (16) being provided on the other half of the outer surface of the filter cartridge (14).

2. The adjustable pulverized coal spray gun according to claim 1, characterized in that: The first baffle plate (5) and the second baffle plate (6) are both provided with flow openings (7) therein.

3. The adjustable pulverized coal spray gun according to claim 1, characterized in that: The top surface of the box body (1) is symmetrically provided with a movable groove (8), a connecting block (9) is installed inside the movable groove (8), and the connecting block (9) is fixedly connected to the first blocking plate (5) and the second blocking plate (6) respectively. A winch (10) is rotatably installed on the top surface of the box body (1), a connecting rope (11) is installed between the connecting block (9) and the winch (10), a motor bracket (12) is installed on the top surface of the winch (10), a driving motor (13) is installed on the top surface of the motor bracket (12), and an output end of the driving motor (13) is fixedly connected to the winch (10).

4. The adjustable pulverized coal spray gun according to claim 1, characterized in that: A rotating rod (17) is symmetrically mounted at the center of the filter cartridge (14), and a spiral blade (18) is fixedly connected to the outer surface of the rotating rod (17).

5. The adjustable pulverized coal spray gun according to claim 4, characterized in that: The diameter of the first through hole (15) is greater than the diameter of the second through hole (16).

6. The adjustable pulverized coal spray gun according to claim 1, characterized in that: The top surface of the box body (1) is symmetrically meshed and rotatably mounted with connecting gears (19), and the connecting gears (19) are fixedly connected to the rotating rod (17). A rotating motor (20) is mounted on the top surface of one of the connecting gears (19), and the output end of the rotating motor (20) is fixedly connected to the connecting gear (19).

7. The adjustable pulverized coal spray gun according to claim 1, characterized in that: A recovery box (21) is mounted on the bottom surface of the box body (1).

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