Accurate ammonia injection device for large-dip-angle goaf
By designing components such as support rods, cylinders, and auxiliary frames, the stability problem of ammonia injection equipment in steeply inclined goaf areas was solved, enabling safe and stable operation of the equipment and precise ammonia injection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENSHANG YIQIAO COAL MINE
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-05
AI Technical Summary
When placing ammonia injection equipment in a steeply inclined goaf, the equipment cannot remain stable, resulting in tilting and shaking, which can easily lead to loose pipeline connections, seal failure, and ammonia leakage, making it impossible to achieve accurate ammonia injection.
A precision ammonia injection device for steeply inclined goaf areas was designed. Through components such as support rods, cylinders, and auxiliary frames, the ammonia injection equipment is ensured to be placed stably on uneven ground. The equipment can be moved and fixed through operating frames and clamps, ensuring the safe and stable operation of the equipment.
The ammonia injection equipment was able to operate safely and stably in steeply inclined goaf areas, ensuring accurate ammonia injection and avoiding problems such as equipment tilting and ammonia leakage.
Smart Images

Figure CN224194438U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the structural technology of ammonia injection equipment, specifically to a precision ammonia injection device for goaf areas with large inclination angles. Background Technology
[0002] Ammonia injection equipment is a specialized device used to inject ammonia into a system. It is commonly used in chemical, environmental protection and other fields, such as power plant denitrification processes. By precisely controlling the injection volume and flow rate of ammonia, it promotes the reaction between ammonia and nitrogen oxides, thereby reducing pollutant emissions.
[0003] In actual operation, when the ammonia injection equipment is placed in a steeply inclined goaf, the uneven ground makes it difficult for the equipment to maintain a stable state, resulting in tilting and shaking. Once the equipment is not placed stably, it is easy to cause problems such as loosening of pipeline connections and failure of seals, leading to ammonia leakage and preventing the ammonia injection equipment from injecting ammonia accurately. Therefore, there is an urgent need for a precise ammonia injection device for steeply inclined goaf to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a precision ammonia injection device for steeply inclined goaf areas to address the aforementioned shortcomings of the existing technology.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A precision ammonia injection device for steeply inclined goaf areas includes an ammonia injection unit with an internal pipeline. A bracket is slidably connected to the surface of the ammonia injection unit, and bolts are threaded into the bracket. Four support rods are inserted into the surface of the bracket, and nuts are threaded onto the arc surfaces of the support rods. A cylinder is rotatably connected to the surface of the nuts, and the inner wall of the cylinder is slidably connected to the support rods. A circular block is rotatably connected to the surface of the cylinder, and two bearing rods are fixedly inserted inside the circular block. The eight bearing rods are arranged in pairs, and an auxiliary frame is rotatably connected to the surface of each pair of bearing rods. The above components achieve the following effect: the ammonia injection unit can be placed flat on uneven ground, thereby ensuring the safe and stable operation of the equipment and enabling precise ammonia injection.
[0007] Preferably, four operating frames are fixedly installed on the surface of the card holder. The cross-section of the operating frame is "L". The effect achieved by the above components is that the card holder is moved by means of the operating frame, and the movement of the card holder drives the ammonia injection equipment to move at the same time, thereby achieving the effect of assisting in the movement of the ammonia injection equipment.
[0008] Preferably, the surface of the card holder has two grooves, the inner wall of the grooves is slidably connected to a limiting rod, and the surface of the limiting rod is fixedly connected to the ammonia injection equipment. The effect achieved by the above components is that the limiting rod and the grooves can assist the operator in placing the card holder on the ammonia injection equipment.
[0009] Preferably, two connecting rods are fixedly inserted into the surface of the card holder, and a baffle is fixedly installed at the end of the connecting rod away from the card holder. The surface of the baffle abuts against the bolt. The effect achieved by the above components is that the baffle can restrict the bolt from moving out of the interior of the card holder.
[0010] Preferably, each of the four auxiliary frames is rotatably connected to two contact frames, and each contact frame is rotatably connected to a long plate. Several positioning rods are uniformly fixed inside the long plate. The effect achieved by the above components is that the positioning rods can be inserted into the ground, which helps to improve the stability when placing the ammonia injection equipment.
[0011] Preferably, each of the four auxiliary frames has two mounting brackets fixedly installed on its surface. A rectangular plate is rotatably connected to the surface of the mounting bracket. The rectangular plate is located between the long plate and the auxiliary frame. The effect achieved by the above components is that when the rectangular plate is rotated, after the rectangular plate rotates a certain angle, the rectangular plate is locked between the long plate and the auxiliary frame. At this time, the long plate cannot rotate, thus achieving the effect of restricting the rotation of the long plate.
[0012] Preferably, each of the eight rectangular plates has a retainer fixedly fitted on its surface. The retainer is an elastic sleeve. The effect achieved by the above components is that the retainer can reduce the gap between the long plate, the auxiliary frame and the long plate, and the auxiliary rectangular plate can be inserted between the long plate and the auxiliary frame.
[0013] In the above technical solution, this utility model provides a precision ammonia injection device for goaf areas with large inclination angles.
[0014] (1) By setting up components such as support rods, cylinders and auxiliary frames, the ammonia injection equipment can be placed flat on uneven ground, thereby ensuring the safe and stable operation of the equipment and enabling the ammonia injection equipment to inject ammonia accurately;
[0015] (2) By setting up operating frames and card holders, it is convenient for staff to move the ammonia injection equipment, thus making it convenient for staff to place the ammonia injection equipment in the steeply inclined goaf. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0017] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of a precision ammonia injection device for a large-angle goaf.
[0018] Figure 2 This utility model Figure 1 A partial structural diagram.
[0019] Figure 3 This utility model Figure 2 Enlarged view of point A.
[0020] Figure 4 This utility model Figure 2 Enlarged view of point B.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Ammonia injection equipment; 2. Pipeline; 3. Operating frame; 4. Bolt; 5. Support rod; 6. Clamp; 7. Sleeve; 8. Rectangular plate; 9. Nut; 10. Cylinder; 11. Round block; 12. Groove; 13. Limiting rod; 14. Connecting rod; 15. Baffle; 16. Mounting frame; 17. Auxiliary frame; 18. Bearing rod; 19. Contact frame; 20. Long plate; 21. Positioning rod Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0024] like Figure 1-4 As shown in the figure, this utility model provides a precision ammonia injection device for a steeply inclined goaf, including an ammonia injection device 1. The ammonia injection device 1 has a pipe 2 connected internally. A bracket 6 is slidably connected to the surface of the ammonia injection device 1. Bolts 4 are threadedly connected to the inside of the bracket 6. Four support rods 5 are inserted into the surface of the bracket 6. Nuts 9 are threadedly connected to the arc surface of the support rods 5. A cylinder 10 is rotatably connected to the surface of the nut 9. The inner wall of the cylinder 10 is slidably connected to the support rods 5. A circular block 11 is rotatably connected to the surface of the cylinder 10. Two bearing rods 18 are fixedly inserted inside the circular block 11. The eight bearing rods 18 are arranged in pairs. An auxiliary frame 17 is rotatably connected to the surface of each pair of bearing rods 18. The effect achieved by the above components is that the ammonia injection device 1 can be placed flat on uneven ground, thereby ensuring the safe and stable operation of the equipment and allowing the ammonia injection device 1 to inject ammonia precisely.
[0025] In this specific embodiment, four operating frames 3 are fixedly installed on the surface of the card holder 6. The cross-section of the operating frame 3 is "L" shaped. The card holder 6 is moved by the operating frame 3, and the ammonia injection equipment 1 is moved at the same time as the card holder 6 moves, thus achieving the effect of assisting in the movement of the ammonia injection equipment 1.
[0026] In this specific embodiment, the surface of the card holder 6 has two grooves 12. The inner wall of the groove 12 is slidably connected to a limiting rod 13. The surface of the limiting rod 13 is fixedly connected to the ammonia injection equipment 1. The limiting rod 13 and the groove 12 can assist the operator in placing the card holder 6 on the ammonia injection equipment 1.
[0027] In this specific embodiment, two connecting rods 14 are fixedly inserted on the surface of the card holder 6. A baffle 15 is fixedly installed at the end of the connecting rod 14 away from the card holder 6. The surface of the baffle 15 abuts against the bolt 4, and the baffle 15 can restrict the bolt 4 from moving out of the interior of the card holder 6.
[0028] In this specific embodiment, each of the four auxiliary frames 17 is rotatably connected to two contact frames 19. The surface of the contact frames 19 is rotatably connected to a long plate 20. Several positioning rods 21 are uniformly fixed inside the long plate 20. The positioning rods 21 can be inserted into the ground, which helps to improve the stability when placing the ammonia injection equipment 1.
[0029] In this specific embodiment, two mounting brackets 16 are fixedly installed on the surface of each of the four auxiliary frames 17. A rectangular plate 8 is rotatably connected to the surface of the mounting bracket 16. The rectangular plate 8 is located between the long plate 20 and the auxiliary frame 17. When the rectangular plate 8 is rotated, after the rectangular plate 8 rotates a certain angle, the rectangular plate 8 is inserted between the long plate 20 and the auxiliary frame 17. At this time, the long plate 20 cannot rotate, thus achieving the effect of restricting the rotation of the long plate 20.
[0030] In this specific embodiment, each of the eight rectangular plates 8 is fixedly fitted with a retainer 7. The retainer 7 is an elastic sleeve. The retainer 7 can reduce the gap between the long plate 20, the auxiliary frame 17 and the long plate 20. The auxiliary rectangular plate 8 is inserted between the long plate 20 and the auxiliary frame 17.
[0031] Working principle: When ammonia injection equipment 1 needs to be placed on a steeply inclined goaf for ammonia injection, firstly, the clamp 6 is placed on the ammonia injection equipment 1 using the groove 12 and the limiting rod 13. Then, the bolt 4 is rotated, and the bolt 4 moves towards the ammonia injection equipment 1 using its thread. After the bolt 4 moves a certain distance, the surface of the bolt 4 presses against the ammonia injection equipment 1, at which point the clamp 6 is fixed on the ammonia injection equipment 1. Then, the operating frame 3 is moved, and the clamp 6 is moved along with it, using the clamp 6 to level the ammonia injection equipment 1. Then, the rectangular plate 8 is rotated, and the rectangular plate 8 rotates along with it, and the clamp 7 rotates along with it. After the clamp 7 rotates a certain angle, the surface of the clamp 7 is no longer in contact with the long plate 20 and the auxiliary frame 17. Then, the long plate 20 is rotated, and the long plate 20 rotates along with it, and the positioning rod 21 rotates along with it. After the positioning rod 21 rotates a certain angle, it stops rotating. Move the long plate 20, then rotate the rectangular plate 8. The rotation of the rectangular plate 8 drives the rectangular plate 8 to rotate, which in turn drives the clamping sleeve 7 to rotate. After the clamping sleeve 7 rotates to a certain angle, its surface engages between the long plate 20 and the auxiliary frame 17. At this point, the long plate 20 and the auxiliary frame 17 are fixed together, and the positioning rod 21 is also fixed. Next, rotate the nut 9. The nut 9 moves downward with the help of the thread. As the nut 9 moves, it drives the cylinder 10 to move. As the cylinder 10 moves, it drives the round block 11 to move. As the round block 11 moves, it drives the bearing rod 18 to move. As the bearing rod 18 moves, it drives the auxiliary frame 17 to move. After the auxiliary frame 17 moves a certain distance, its surface contacts the ground. At this point, the positioning rod 21 on the long plate 20 is inserted into the ground. The flat ammonia injection equipment 1 is then stably supported by the support rod 5, the cylinder 10, and the auxiliary frame 17.
[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A precision ammonia injection device for steeply inclined goaf areas, comprising ammonia injection equipment (1), characterized in that, The ammonia injection device (1) is internally connected to a pipe (2). A bracket (6) is slidably connected to the surface of the ammonia injection device (1). A bolt (4) is threadedly connected to the inside of the bracket (6). Four support rods (5) are inserted inside the surface of the bracket (6). Nuts (9) are threadedly connected to the arc surface of the support rods (5). A cylinder (10) is rotatably connected to the surface of the nut (9). The inner wall of the cylinder (10) is slidably connected to the support rods (5). A round block (11) is rotatably connected to the surface of the cylinder (10). Two bearing rods (18) are fixedly inserted inside the round block (11). The eight bearing rods (18) are in pairs. An auxiliary frame (17) is rotatably connected to the surface of each pair of bearing rods (18).
2. The precision ammonia injection device for a steeply inclined goaf area according to claim 1, characterized in that, Four operating frames (3) are fixedly installed on the surface of the card holder (6), and the cross-section of the operating frame (3) is "L" shaped.
3. The precision ammonia injection device for a steeply inclined goaf according to claim 1, characterized in that, The card holder (6) has two grooves (12) on its surface. A limit rod (13) is slidably connected to the inner wall of the groove (12). The surface of the limit rod (13) is fixedly connected to the ammonia injection device (1).
4. The precision ammonia injection device for a steeply inclined goaf according to claim 1, characterized in that, Two connecting rods (14) are fixedly inserted on the surface of the card holder (6). A baffle (15) is fixedly installed on the end of the connecting rod (14) away from the card holder (6). The surface of the baffle (15) abuts against the bolt (4).
5. The precision ammonia injection device for a steeply inclined goaf according to claim 1, characterized in that, Each of the four auxiliary frames (17) has two contact frames (19) rotatably connected to its surface. Each contact frame (19) has a long plate (20) rotatably connected to its surface. Several positioning rods (21) are evenly fixedly inserted inside the long plate (20).
6. A precision ammonia injection device for a steeply inclined goaf according to claim 5, characterized in that, Two mounting brackets (16) are fixedly installed on the surface of each of the four auxiliary frames (17). A rectangular plate (8) is rotatably connected to the surface of the mounting bracket (16). The rectangular plate (8) is located between the long plate (20) and the auxiliary frame (17).
7. A precision ammonia injection device for a steeply inclined goaf area according to claim 6, characterized in that, Each of the eight rectangular plates (8) is fixedly fitted with a sleeve (7), which is an elastic sleeve.