A conveying device capable of improving the slag output of a dry slag discharge machine.
The conveying device with a pusher mechanism and tray plates addresses the inefficiencies of dry slag discharge machines by enhancing slag discharge capacity and stability, reducing wear and extending the service life, ensuring stable operation even during peak loads.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- HUANENG LANZHOU XIGU THERMAL POWER CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-05-25
AI Technical Summary
The existing dry slag discharge machines face issues with increased wear, reduced service life, and instability due to overloaded slag discharge during periods of high load, especially with mixed coal combustion and frequent boiler load changes, leading to inefficiencies and safety concerns.
A conveying device with a pusher mechanism, tray plates, and a support mechanism that includes a C-shaped structure, grooves, and uniformly distributed pushers to enhance slag discharge capacity and stability, preventing lateral slippage and improving the efficiency of slag conveyance.
The solution enhances slag discharge efficiency, reduces equipment wear, extends service life, and ensures stable operation by uniformly distributing slag, even during peak loads, thus improving the overall performance and safety of the slag removal system.
Smart Images

Figure 2026085846000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of conveyors of dry slag discharge machines, and particularly to a conveying device capable of improving the slag discharge output of a dry slag discharge machine.
Background Art
[0002] Currently, most boiler slag removal uses an air-cooled mechanical slag removal process. The dry slag discharge machine is arranged at the zero-meter position of the boiler chamber. The coke slag generated after the boiler burns falls onto the stainless steel conveying steel belt of the dry slag discharge machine through the transition slag hopper. The high-temperature slag is conveyed obliquely upward by the rotating stainless steel conveying belt through the horizontal part and the ascending slope part (gradient 22.5°) to a position about 9 meters away from the floor surface at the head. The slag falls into the slag chamber and is stored. The dry slag stored in the slag chamber is loaded onto the vehicle by the lower slag discharge system.
[0003] Considering energy conservation, economy, and environmental protection, most thermal power generation units are all involved in peak shaving, affected by the mixed combustion of blended coal, and the boiler load changes frequently. During the period of large load, the amount of generated slag suddenly increases, and the slag discharge capacity of the dry slag discharge machine always reaches the upper limit, and the device operates at full load for a long time. If this continues, due to the limitation of the slag discharge capacity of the dry slag discharge machine, it operates overloaded for a long time, the wear of the device increases, defects increase, the normal level drops rapidly, the service life is greatly shortened, and at the same time, it affects the safe and stable operation of the unit.
Summary of the Invention
Problems to be Solved by the Invention
[0004] Therefore, the present invention provides a conveying device capable of improving the slag discharge output of a dry slag discharge machine, reforms the steel conveying belt, optimizes and improves the slag discharge capacity of the dry slag discharge machine, improves the normal level of the device, and extends the service life of the dry slag discharge machine.
Means for Solving the Problems
[0005] This invention was made in view of the problems of the prior art described above.
[0006] Therefore, an object of the present invention is to provide a conveying device capable of improving the slag output of a dry slag discharge machine.
[0007] To solve the above technical problems, the present invention provides the following technical solution, a conveying device capable of improving the slag output of a dry slag discharge machine, comprising a conveying mechanism and a support mechanism provided on the conveying mechanism, wherein a pusher is provided on the support mechanism, The pusher includes a pusher plate provided in the support mechanism.
[0008] As a preferred solution for a conveying device that can improve the slag output of the dry slag discharge machine of the present invention, a restricting side is provided on the side of the pusher plate.
[0009] As a preferred solution for a conveying device that can improve the slag output of the dry slag discharge machine of the present invention, an oblique notch is provided on the regulating side.
[0010] As a preferred solution for a conveying device capable of improving the slag output of the dry slag discharge machine of the present invention, the support mechanism includes a tray plate, and the tray plate has a C-shaped structure with an upward-facing opening.
[0011] As a preferred solution for a conveying device that can improve the slag output of the dry slag discharge machine of the present invention, the tray plate is provided with an outer groove and an inner groove.
[0012] A preferred solution for a conveying device capable of improving the slag output of the dry slag discharge machine of the present invention is to provide an inclined surface within the inner groove, The depths of both the inner and outer grooves are greater than half the thickness of the tray plate.
[0013] As a preferred solution for a conveying device that can improve the slag output of the dry slag discharge machine of the present invention, a plurality of pushers are provided above each tray plate, and the plurality of pushers are uniformly distributed on the tray plate.
[0014] As a preferred solution for a conveying device that can improve the slag output of the dry slag discharge machine of the present invention, the uniformly distributed tray plates are provided with offset positions along the length direction of the tray plates.
[0015] As a preferred solution for a conveying device capable of improving the slag output of the dry slag discharge machine of the present invention, the conveying mechanism includes a drive wheel and a chain provided outside the drive wheel.
[0016] A preferred solution for a conveying device capable of improving the slag output of the dry slag discharge machine of the present invention is that a fixing plate is provided on the chain, a fixing shaft is provided on the fixing plate, and the tray plate is connected to the fixing plate via the fixing shaft. The tray plate is provided separately from the fixing plate. [Effects of the Invention]
[0017] The beneficial effects of the conveying device capable of improving the slag discharge output of the dry slag discharge machine of the present invention are as follows: The present invention can improve slag discharge efficiency by inhibiting the slag with the pusher, avoids lateral slippage due to inclination when the slag is conveyed upward, can convey the generated coke slag to the slag chamber all at once during boiler deep peak shaving and periods of high peak load, and significantly improves the slag conveying capacity of the conveying belt. It also improves the stability and safety of the slag removal system. [Brief explanation of the drawing]
[0018] To more clearly explain the technical solutions of the embodiments of the present invention, the drawings necessary for the description of the embodiments are briefly described below. As is clear, the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative effort. [Figure 1] It is a front view of a conveying device capable of improving the slag discharge output of a dry slag discharge machine. [Figure 2] It is a front cross-sectional view of a conveying device capable of improving the slag discharge output of a dry slag discharge machine. [Figure 3] It is an enlarged view of portion A in FIG. 2. [Figure 4] It is a schematic structural diagram of the pusher of a conveying device capable of improving the slag discharge output of a dry slag discharge machine.
Modes for Carrying Out the Invention
[0019] To make the above objects, features, and advantages of the present invention more understandable, the specific embodiments of the present invention will be described in detail below with reference to the drawings of the specification.
[0020] In the following description, many specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0021] Next, as used herein, "one embodiment" or "an embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one embodiment of the present invention. The appearances of "in one embodiment" in different parts of this specification do not all refer to the same embodiment, nor are they mutually exclusive embodiments alone or selectively with other embodiments.
[0022] In Example 1, referring to FIGS. 1 to 4, they are the first example of the present invention. This example provides a conveying device capable of improving the slag discharge output of a dry slag discharge machine. The conveying device includes a conveying mechanism 100 and a support mechanism 200 provided on the conveying mechanism 100, and a pusher 300 is provided on the support mechanism 200. In this example, a plurality of support mechanisms 200 are provided on the conveying mechanism 100. The conveying mechanism 100 can operate to move the support mechanism 200, and further move the pusher 300 in the support mechanism 200. Due to the inhibition of the pusher 300 on the slag, the slag discharge efficiency can be improved, and it is possible to avoid the slag from slipping sideways due to the inclination when the slag is conveyed upward.
[0023] The pusher 300 includes a pusher plate 301 provided on the support mechanism 200. In this example, the pusher plate 301 is provided perpendicular to the surface of the support mechanism 200. The pusher plate 301 can block the slag during conveyance, and further push and lift the slag.
[0024] Specifically, a regulating side 302 is provided on the side of the pusher plate 301. In this example, the regulating side 302 is provided on both sides of the pusher plate 301, whereby the amount of slag supported by the pusher plate 301 can be increased, avoiding the slag from slipping off from the side, and further improving the load capacity.
[0025] Furthermore, an inclined notch 303 is provided on the regulating side 302. In this example, by providing the inclined notch 303, it is possible to facilitate the deposited and overly full slag from falling through the gap between each pusher 300 when the overly high slag is conveyed obliquely, and further avoid the load of a certain part being too large.
[0026] In Example 2, referring to Figures 1 to 4, these are the second embodiment of the present invention, and the difference from the previous embodiment is that the support mechanism 200 includes a tray plate 201, and the tray plate 201 has a C-shaped structure with an upward-facing opening. In this embodiment, the C-shaped tray plate 201 can better receive the fallen slag, preventing the slag from sliding off both sides of the support mechanism 200, and improving the effect of material receiving and material storage.
[0027] Specifically, the tray plate 201 is provided with an outer groove 202 and an inner groove 203. In this embodiment, the outer groove 202 and the inner groove 203 are provided on both sides of the tray plate 201, respectively. The installation of the outer groove 202 and the inner groove 203 causes adjacent tray plates 201 to overlap with each other in a misaligned position, thereby improving the effect of receiving fallen slag, preventing slag from falling through the gaps between the tray plates 201, and making it easier to ensure that the tray plates 201 overlap in curved areas.
[0028] Furthermore, a slope 204 is provided within the inner groove 203, and the depths of both the inner groove 203 and the outer groove 202 are greater than half the thickness of the tray plate 201. In this embodiment, since the outer groove 202 and the inner groove 203 are stacked in sequence, it is difficult to prevent the slag from falling into the gap between the tray plates 201. The installation of the slope 204 facilitates the falling of the slag, prevents deformation of the stacked portion between the tray plates 201 due to the pressure of the slag, and extends the service life of the device. The depths of both the inner groove 203 and the outer groove 202 are greater than half the thickness of the tray plate 201, which means that a gap exists between two adjacent tray plates 201, allowing the slag to fall into this gap. Furthermore, it prevents the slag from pressing against the tray plates 201 and causing serious wear and deformation of the tray plates 201, and extends the service life of the device.
[0029] The other structures are the same as in Example 1.
[0030] In Example 3, referring to Figures 1 to 4, these are the third embodiment of the present invention, and the difference from the previous embodiment is that a plurality of pushers 300 are provided above each tray plate 201, and the plurality of pushers 300 are uniformly distributed on the tray plate 201. In this embodiment, the installation of the plurality of pushers 300 improves the support effect of each support mechanism 200 when it is transported at an inclination, and the uniform distribution ensures that there is a gap between each pusher 300, so that excess slag is discharged to the lower support mechanism 200, each support mechanism 200 receives the material more uniformly, the load on each part is uniform, and the device is more stable when it is in operation.
[0031] Specifically, the uniformly distributed tray plates 201 are positioned offset along the length of the tray plates 201. In this embodiment, the offsetting of the tray plates 201 ensures the support effect of the support mechanism 200 and provides a larger gap space, allowing excess material to fall from the gap between the pushers 300 onto the lower support mechanism 200, thus preventing accumulation when there is too much material.
[0032] Furthermore, the transport mechanism 100 includes a drive wheel 101 and a chain 102 provided outside the drive wheel 101. In this embodiment, the drive wheel 101 is connected to a drive device, and the drive wheel 101 can rotate, thereby moving the chain 102 and thus the transport mechanism.
[0033] A fixing plate 103 is provided on the chain 102, and a fixing shaft 104 is provided on the fixing plate 103. The tray plate 201 is connected to the fixing plate 103 via the fixing shaft 104. In this embodiment, a fixing plate 103 is provided on each section of the chain 102, and each fixing plate 103 is fixedly connected to the tray plate 201 via multiple fixing shafts 104.
[0034] The tray plates 201 are provided away from the fixed plate 103, and because the tray plates 201 are provided at a distance from each other, each tray plate 201 can have a larger volume, reducing the number of tray plates 201, further reducing the gaps between the tray plates 201, and reducing the amount of slag that falls. At the same time, because there are fewer tray plates 201 located on the drive wheels 101, when the tray plates 201 move towards the drive wheels 101, the gaps between two adjacent tray plates 201 increase, making it easier for material trapped in the gaps between the tray plates 201 to fall.
[0035] The other structures are the same as in Example 2.
[0036] Furthermore, the pusher 300 and support mechanism 200 are made of the same material, both being wear-resistant stainless steel. As the tray plate 201 moves forward at a constant speed, the slag generated by combustion in the furnace chamber is uniformly distributed on the tray plate 201. In the ascending section of the steel conveyor belt, coke lumps between adjacent pusher plates 301 can also be uniformly distributed. The pusher plates 301 can block coke lumps that would otherwise easily slide off due to insufficient friction, and send them into the slag chamber. At the same time, during periods of deep peak shaving and high peak load in the boiler, the generated coke slag can be transported to the slag chamber in one go, significantly improving the slag transport capacity of the conveyor belt. This also improves the stability and safety of the slag removal system.
[0037] In actual applications at production sites, it is highly effective, allowing for the efficient transport of generated slag to the slag chamber in one go. It is energy-saving, environmentally friendly, and economical, reducing equipment wear, extending the service life of the equipment, and continuously improving the equipment's normal operation level, thus laying a good foundation for the long-term safe and stable operation of the slag removal system and boiler.
[0038] The above embodiments are merely for illustrating the technical solutions of the present invention and are not limiting. While the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and that any such modifications or substitutions should be included within the scope of the claims of the present invention. [Explanation of symbols]
[0039] 100 Conveying mechanism 101 Drive wheels 102 chain 103 Fixed plate 104 Fixed axis 200 Support mechanism 201 Tray Plate 202 Outer recessed groove 203 Inner groove 204 Slope 300 Pusher 301 Pusher plate 302 Regulatory Side 303 Diagonal cutout.
Claims
1. A conveying device capable of improving the slag output of a dry slag discharge machine, The system includes a transport mechanism (100) and a support mechanism (200) provided on the transport mechanism (100), wherein a pusher (300) is provided on the support mechanism (200). A conveying device capable of improving the slag output of a dry slag discharge machine, characterized in that the pusher (300) includes a pusher plate (301) provided on the support mechanism (200).
2. A conveying device capable of improving the slag discharge output of a dry slag discharge machine according to claim 1, characterized in that a restricting side (302) is provided on the side of the pusher plate (301).
3. A conveying device capable of improving the slag output of a dry slag discharge machine according to claim 2, characterized in that a diagonal notch (303) is provided on the regulating side (302).
4. The support mechanism (200) includes a tray plate (201), and the tray plate (201) has a C-shaped structure with an upward-facing opening, characterized in that the conveying device is capable of improving the slag output of the dry slag discharge machine according to claim 3.
5. A conveying device capable of improving the slag output of a dry slag discharge machine, characterized in that the tray plate (201) is provided with an outer groove (202) and an inner groove (203).
6. An inclined surface (204) is provided within the aforementioned internal groove (203), The conveying device for improving the slag output of a dry slag discharge machine according to claim 5, characterized in that the depths of the inner groove (203) and the outer groove (202) are both greater than half the thickness of the tray plate (201).
7. A conveying device capable of improving the slag output of a dry slag discharge machine according to claim 6, characterized in that a plurality of pushers (300) are provided above each tray plate (201), and the plurality of pushers (300) are uniformly distributed on the tray plate (201).
8. A conveying device capable of improving the slag output of a dry slag discharge machine, characterized in that the uniformly distributed tray plates (201) are provided with offset positions along the length direction of the tray plates (201).
9. The conveying device for improving the slag output of a dry slag discharge machine according to claim 8, characterized in that the conveying mechanism (100) includes a drive wheel (101) and a chain (102) provided outside the drive wheel (101).
10. A fixing plate (103) is provided on the chain (102), a fixing shaft (104) is provided on the fixing plate (103), and the tray plate (201) is connected to the fixing plate (103) via the fixing shaft (104). The conveying device for improving the slag output of a dry slag discharge machine according to claim 9, characterized in that the tray plate (201) is provided separately from the fixing plate (103).