Hyperbolic coal bucket cross pipe batching device
The hyperbolic coal hopper and cross-pipe batching device, designed with a hyperbolic coal hopper and cross-pipe, solves the problems of clogging and uneven mixing in traditional coal batching devices, achieving efficient and stable coal mixing, and improving production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG TIANYOU MECHANICAL & ELECTRICAL CO LTD
- Filing Date
- 2025-09-27
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional coal batching equipment suffers from problems such as coal sticking to the walls, bridging, and clogging, and the mixing is uneven, resulting in low production efficiency and unstable product quality.
The design employs a hyperbolic coal hopper and cross-pipes, combined with a polytetrafluoroethylene anti-sticking layer and a servo motor-driven stirring shaft, to achieve pre-mixing and fine mixing of coal, reduce friction and adhesion, improve fluidity, and enhance the initial mixing effect through the cross-pipe design.
It effectively solved the coal blockage problem, ensured the continuity and stability of the batching, improved the initial mixing uniformity and final product quality, and reduced energy consumption and scrap rate.
Smart Images
Figure CN224529548U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal batching technology, specifically a hyperbolic coal hopper cross-pipe batching device. Background Technology
[0002] In industries such as coal processing, thermal power generation, coking, and gasification, it is often necessary to precisely batch and mix different types and qualities of coal to obtain a mixed coal feed that meets specific production process requirements (such as calorific value, sulfur content, volatile matter, etc.). Currently, the batching devices commonly used in this process typically consist of ordinary silo-type or conical coal hoppers and straight conveying pipelines below.
[0003] However, these traditional batching devices have several obvious technical drawbacks in practical applications:
[0004] Firstly, the lower part of a typical coal hopper is usually a simple conical or cylindrical structure, resulting in significant friction and adhesion between the inner wall and the coal. This is especially problematic when processing coal with high moisture content, fine particles, or high viscosity, as the material easily adheres to the hopper wall, bridging, or causing blockages, particularly near the discharge port. This not only disrupts the continuity and stability of the batching process but also necessitates frequent shutdowns for manual cleaning, severely impacting production efficiency.
[0005] Secondly, traditional batching methods typically involve directly transporting various types of coal through separate pipelines to the final mixing equipment. This linear, non-intersecting transport method results in a lack of effective preliminary mixing of different coal types before they enter the mixer. The coal streams are simply superimposed, leading to extremely low initial mixing uniformity. This places all the mixing tasks on the final mixing equipment, which not only places excessive demands on the mixer's performance and increases energy consumption, but also easily leads to fluctuations in the final product composition and unstable quality, failing to meet the requirements of refined coal blending.
[0006] Therefore, it is necessary to provide a hyperbolic coal hopper cross-pipe batching device to solve the above-mentioned technical problems. Utility Model Content
[0007] To address the shortcomings of existing technologies, this utility model provides a hyperbolic coal hopper cross-pipe feeding device, which solves the problems mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] A hyperbolic coal hopper cross-pipe feeding device, comprising:
[0010] The mounting frame has several hyperbolic coal hoppers fixedly mounted on it. Each hyperbolic coal hopper has a feed inlet at the top and a discharge outlet at the bottom. A feeding pipe corresponding to the discharge outlet is fixedly mounted at the bottom of each hyperbolic coal hopper. A mixing box is fixedly mounted at the bottom end of the feeding pipe, and the hyperbolic coal hopper is connected to the interior of the mixing box through the feeding pipe. Several mounting holes are opened on the side of the top of the mounting frame.
[0011] A discharge pipe is fixedly installed at the bottom of the mixing tank, and a manual valve is installed on the discharge pipe. A flow regulating valve is installed on the dispensing pipe.
[0012] Preferably, a stirring shaft is rotatably mounted inside the mixing chamber at the bottom, and several stirring rollers are fixedly mounted on the outer wall of the stirring shaft. A servo motor is fixedly mounted on the outer surface of the mixing chamber, and the drive end of the servo motor passes through the mixing chamber and extends into the interior of the mixing chamber and is fixedly connected to one end of the stirring shaft.
[0013] Preferably, a number of stabilizing bars are fixedly installed between the top of the mixing box and the bottom of the mounting frame.
[0014] Preferably, the number of the dispensing pipes is three, and the bottom ends of the three dispensing pipes are connected to the upper part of the mixing box in a cross shape.
[0015] Preferably, the upper part of the hyperbolic coal hopper is cylindrical, and the lower part is hyperbolic.
[0016] Preferably, the inner wall of the hyperbolic coal hopper is provided with an anti-sticking layer, and the anti-sticking layer is made of polytetrafluoroethylene material.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. This utility model utilizes a mounting frame, a hyperbolic coal hopper, an inlet, a batching pipe, a mixing box, a discharge pipe, a manual valve, mounting holes, a flow regulating valve, and an outlet in a coordinated manner. The lower part of the hyperbolic coal hopper is designed in a hyperbolic shape. This effectively reduces the friction and adhesion between the coal and the hopper wall. Combined with the smooth and non-stick properties of the PTFE anti-stick layer, it greatly improves the fluidity of the coal, fundamentally solving the problems of bridging, wall adhesion, and outlet blockage that are common in traditional coal hoppers. This ensures the continuity and stability of batching, reduces downtime caused by clearing blockages, and improves production efficiency. Simultaneously, the design of multiple batching pipes converging into the mixing box in a crisscross pattern allows different types of coal to undergo multi-angle, high-intensity collisions and mixing upon entering the mixing box, achieving a highly efficient pre-mixing. This not only reduces the workload of subsequent mixing equipment but also significantly improves the initial uniformity of the final mixed coal, laying a solid foundation for obtaining a high-quality, component-stable mixed product.
[0019] 2. This invention utilizes a servo motor, a stirring shaft, and stirring rollers in combination. After the coal is pre-mixed by cross-collision above the mixing chamber, the servo motor drives the stirring shaft and stirring rollers to perform forced mechanical stirring. This active stirring method combined with passive pre-mixing forms a gradient mixing process of pre-mixing followed by fine mixing. This overcomes the dead zones and unevenness that may exist in single mixing methods, allowing coals of different qualities to be fully and uniformly mixed. This ensures that the coal quality after batching is highly uniform and stable, and the fluctuations of various indicators (such as calorific value and sulfur content) are controlled within a very small range. It effectively avoids the adverse effects of uneven mixing on subsequent combustion, coking, and other production processes, ensuring the quality and efficiency of the final product, and reducing production energy consumption and scrap rate. Attached Figure Description
[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the rear-view, upward-looking structure of this utility model;
[0022] Figure 3 This is a cross-sectional view of the mixing box in this utility model;
[0023] Figure 4 This is a cross-sectional view of the hyperbolic coal hopper in this utility model.
[0024] In the diagram: 1. Mounting frame; 2. Hyperbolic coal hopper; 3. Feed inlet; 4. Batching pipe; 5. Mixing box; 6. Discharge pipe; 7. Manual valve; 8. Servo motor; 9. Stabilizer bar; 10. Mounting hole; 11. Flow regulating valve; 12. Agitator shaft; 13. Agitator roller; 14. Discharge port. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-4 One embodiment provided by this utility model:
[0027] A hyperbolic coal hopper cross-pipe feeding device, comprising:
[0028] Mounting frame 1, on which several hyperbolic coal hoppers 2 are fixedly mounted. The top of the hyperbolic coal hopper 2 is provided with a feed inlet 3 and the bottom of the hyperbolic coal hopper 2 is provided with a discharge outlet 14. A feeding pipe 4 corresponding to the position of the discharge outlet 14 is fixedly mounted at the bottom of the hyperbolic coal hopper 2. A mixing box 5 is fixedly mounted at the bottom end of the feeding pipe 4, and the hyperbolic coal hopper 2 is connected to the interior of the mixing box 5 through the feeding pipe 4. Several mounting holes 10 are opened on the side of the top of the mounting frame 1.
[0029] A discharge pipe 6 is fixedly installed at the bottom of the mixing box 5. A manual valve 7 is installed on the discharge pipe 6, and a flow regulating valve 11 is installed on the batching pipe 4. The manual valve 7 on the discharge pipe 6 can control the material discharge as needed; the flow regulating valve 11 on the batching pipe 4 can accurately adjust the feed flow rate to ensure the material ratio and mixing effect.
[0030] A stirring shaft 12 is rotatably mounted inside the mixing chamber 5 at the bottom. Several stirring rollers 13 are fixedly mounted on the outer wall of the stirring shaft 12. A servo motor 8 is fixedly mounted on the outer surface of the mixing chamber 5. The drive end of the servo motor 8 passes through the mixing chamber 5 and extends into the interior of the mixing chamber 5, and is fixedly connected to one end of the stirring shaft 12. The servo motor 8 drives the stirring shaft 12 and the stirring rollers 13 to rotate inside the mixing chamber 5, which can fully stir the materials, make the materials more uniformly mixed, and improve the mixing quality and efficiency.
[0031] In one embodiment, a number of stabilizing bars 9 are fixedly installed between the top of the mixing tank 5 and the bottom of the mounting frame 1, which can enhance structural stability, reduce vibration and shaking, and ensure safe and reliable operation of the equipment.
[0032] In one preferred embodiment, there are three feeding pipes 4, and the bottom ends of the three feeding pipes 4 are connected to the upper part of the mixing box 5 in a cross shape. The axes of the three feeding pipes 4 intersect at a point inside the mixing box 5, which allows multiple types of coal to enter the mixing box 5 from multiple angles, accelerates cross collision, and improves the premixing effect and efficiency.
[0033] In one embodiment, the upper part of the hyperbolic coal hopper 2 is cylindrical and the lower part is hyperbolic, which can make the coal flow speed uniform, reduce coal blockage, and ensure smooth and stable feeding.
[0034] In one preferred embodiment, the inner wall of the hyperbolic coal hopper 2 is provided with an anti-sticking layer, and the anti-sticking layer is made of polytetrafluoroethylene material, which can prevent coal from sticking to the wall, avoid poor material feeding and blockage, and ensure stable and smooth coal discharge.
[0035] The working principle of this utility model is as follows: All electrical components mentioned are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer, and existing publicly available power connection technologies are not detailed here. Parts not mentioned in this device are the same as or can be implemented using existing technologies. During operation, different types of coal are fed into the device through their respective inlets 3 on the mounting frame 1. The discharge flow rate of each type of coal is precisely controlled by the flow regulating valve 11. After flowing out of the outlet 14, the coal enters the batching pipe 4. Under the guidance of the batching pipe 4, different types of coal converge in multiple directions above the mixing box 5 and are sprayed towards a single point. During this process, different types of coal collide and mix, thus achieving pre-mixing. Afterward, multiple types of coal enter the mixing box 5 for further mixing. Finally, the manual valve 7 on the discharge pipe 6 is opened, allowing the mixed coal to be discharged through the discharge pipe 6.
[0036] After the coal has completed cross-collision premixing inside the mixing chamber 5, the servo motor 8 starts, and its drive end drives the stirring shaft 12 to rotate. The rotation of the stirring shaft 12 then drives the stirring roller 13 to rotate synchronously. The rotation of the stirring roller 13 further agitates the coal, ensuring that the coal reaches an optimal mixing state inside the mixing chamber 5 before being discharged through the discharge pipe 6. This ensures that the coal quality after batching has high stability and avoids adverse effects on subsequent production processes and product quality.
[0037] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model are implemented according to conventional methods in the art, unless otherwise specified or limited.
Claims
1. A hyperbolic coal hopper cross-pipe feeding device, characterized in that, It includes: Mounting frame (1), on which several hyperbolic coal hoppers (2) are fixedly mounted. The top of the hyperbolic coal hopper (2) is provided with a feed inlet (3) and the bottom of the hyperbolic coal hopper (2) is provided with a discharge outlet (14). The bottom of the hyperbolic coal hopper (2) is fixedly mounted with a feeding pipe (4) corresponding to the position of the discharge outlet (14). The bottom end of the feeding pipe (4) is fixedly mounted with a mixing box (5). The hyperbolic coal hopper (2) is connected to the interior of the mixing box (5) through the feeding pipe (4). Several mounting holes (10) are opened on the side of the top of the mounting frame (1). A discharge pipe (6) is fixedly installed at the bottom of the mixing tank (5), a manual valve (7) is provided on the discharge pipe (6), and a flow regulating valve (11) is provided on the dispensing pipe (4).
2. The hyperbolic coal hopper cross-pipe feeding device according to claim 1, characterized in that: A stirring shaft (12) is rotatably installed inside the mixing box (5). Several stirring rollers (13) are fixedly installed on the outer wall of the stirring shaft (12). A servo motor (8) is fixedly installed on the outer surface of the mixing box (5). The drive end of the servo motor (8) passes through the mixing box (5) and extends into the interior of the mixing box (5) and is fixedly connected to one end of the stirring shaft (12).
3. The hyperbolic coal hopper cross-pipe feeding device according to claim 1, characterized in that: Several stabilizing bars (9) are fixedly installed between the top of the mixing box (5) and the bottom of the mounting frame (1).
4. The hyperbolic coal hopper cross-pipe feeding device according to claim 1, characterized in that: The number of the dispensing pipes (4) is three, and the bottom ends of the three dispensing pipes (4) are connected to the upper part of the mixing box (5) in a cross shape.
5. The hyperbolic coal hopper cross-pipe feeding device according to claim 1, characterized in that: The upper part of the hyperbolic coal hopper (2) is cylindrical, and the lower part is hyperbolic.
6. The hyperbolic coal hopper cross-pipe feeding device according to claim 1, characterized in that: The inner wall of the hyperbolic coal hopper (2) is provided with an anti-sticking layer, and the anti-sticking layer is made of polytetrafluoroethylene material.