dry slag bulk handler

Abstract

The application relates to the field of bulk material loading equipment, and provides a dry slag bulk machine, which comprises a top plate, an inner pipe, a telescopic outer pipe, a lifting assembly and an upward dust extraction assembly. The inner pipe is vertically arranged and connected with the top plate at the top, and is made of rigid material. The telescopic outer pipe is arranged outside the inner pipe and connected with the top plate at the top, and the bottom of the telescopic outer pipe is lower than the bottom of the inner pipe. The lifting assembly comprises a winch and multiple limiting groups. Each limiting group comprises multiple limiting rings which are vertically and spacedly arranged on the inner wall of the telescopic outer pipe. The winch is arranged on the top plate and is provided with multiple ropes. Each rope corresponds to one limiting ring. One end of each rope is arranged between the inner pipe and the telescopic outer pipe and connected with the top plate. The other end of each rope passes through the multiple limiting rings of the corresponding limiting group downwards and then passes out from below the telescopic outer pipe and is connected with the winch. The upward dust extraction assembly is in communication with the inner side of the telescopic outer pipe. The application solves the problem that the traditional dry slag bulk machine cannot realize dust-free and stable loading.

Description

Technical Field

[0001] This application relates to the field of bulk material loading equipment, and more particularly to a dry slag bulk loading machine. Background Technology

[0002] The dry ash bulk loading machine is a core environmental protection device in the dry ash removal system of thermal power plants, specifically designed to efficiently and dust-free load the dried bottom ash (lumpy or granular) discharged from boilers into bulk tank trucks for transport. The dry ash bulk loading machine mainly consists of an inner pipe, an outer pipe, a lifting assembly, a dust extraction assembly, and a loading head. The bottoms of both the inner and outer pipes are connected to the loading head. The inner pipe is the discharge pipe; the material (dry ash) is guided into the truck through the inner pipe and the loading head. To prevent damage to the inner pipe due to material impact and friction, it is typically made of rigid metal. Furthermore, for ease of loading, the inner pipe is usually designed to be telescopic to adjust its bottom height. For example, the inner pipe is composed of multiple sections of pipes with different diameters nested together. The lifting assembly is connected to the loading head and drives its lifting and lowering. When the loading head rises, the inner pipe gradually folds; when the loading head descends, gravity pulls down the inner pipe, thus extending it.

[0003] However, dust can easily escape through gaps between adjacent pipes. Therefore, an outer pipe needs to be installed outside the inner pipe to prevent dust from escaping. The dust between the inner and outer pipes is then extracted by a dust extraction assembly. To accommodate the expansion and contraction of the inner pipe, the outer pipe needs to be made of a stretchable or foldable material. However, the outer pipe is stretched and tightened by the gravity of the loading head. Therefore, when the loading head does not descend to its lowest height, the outer pipe is prone to shifting and collapsing towards the inner pipe, thus dividing the area between the inner and outer pipes into multiple small spaces. This causes dust to accumulate in these small spaces, eventually adhering in large quantities to the inner wall of the outer pipe, shortening its cleaning cycle, or being discharged to the outside after the inner and outer pipes retract, affecting the dust extraction process. In addition, the negative pressure generated during dust extraction can also easily cause deformation of the outer pipe, especially when it is not taut, and in severe cases, it may even cause blockage of the dust extraction port.

[0004] Furthermore, the multi-section structure of the inner tube not only suffers from dust leakage but also easily leads to material jamming, resulting in obstructed expansion and contraction, excessive noise and wear during expansion and contraction, and excessive weight. To address these shortcomings, some manufacturers have considered using flexible tubes as the feeding pipe to simultaneously solve the problems of material jamming, dust extraction, and excessive weight. However, flexible tubes are inherently prone to collapse and damage. While increasing the diameter of the flexible tube and adding an internal support structure can prevent collapse and mitigate material impact, in this case, the flexible tube only serves to prevent dust leakage and does not fulfill its function of conveying materials. The material possesses horizontal kinetic energy during feeding, making direct feeding inconvenient for loading. Summary of the Invention

[0005] To address the problem that traditional dry slag bulk loading machines cannot achieve dust-free and stable loading, this application provides a dry slag bulk loading machine.

[0006] The dry slag bulk loading machine provided in this application adopts the following technical solution: A dry slag bulk loading machine, comprising: roof; An inner tube is vertically installed and its top is connected to the top plate; the inner tube is made of a rigid material. A telescopic outer tube is provided outside the inner tube and its top is connected to the top plate. The lowest bottom height of the telescopic outer tube is lower than the bottom height of the inner tube. The lifting assembly includes a winch and multiple sets of limiting groups. Each limiting group includes multiple limiting rings vertically spaced on the inner wall of the telescopic outer tube. The winch is mounted on the top plate and is equipped with multiple ropes. Each rope corresponds to one of the limiting rings. One end of each rope is located between the inner tube and the telescopic outer tube and connected to the top plate. The other end of each rope passes downward through the multiple limiting rings of the corresponding limiting group and then exits from below the telescopic outer tube, connecting to the winch. The upper dust extraction component is connected to the inner side of the telescopic outer tube.

[0007] By adopting the above technical solution, the inner tube is made of a one-piece rigid material, which avoids the problem of material jamming caused by gaps in traditional multi-section telescopic inner tubes. It can also effectively resist the impact and friction of dry slag materials. The inner tube is shorter in length and its bottom height is higher than the minimum bottom height of the outer tube, thereby reducing the weight of the inner tube and improving its stability. The inner tube can limit the material in the early stage of material falling, preventing the material from being too dispersed. The outer tube can prevent dust from escaping. By setting a rope to pass through the limiting ring on the outer tube, the outer tube is limited, preventing the outer tube from deviating due to its own characteristics and the lack of limiting by the inner tube. This ensures the smooth flow of internal space when the upper dust extraction component is extracting dust, avoids tube deformation and dust extraction port blockage caused by negative pressure, and achieves dust-free and stable dry slag loading.

[0008] Optionally, the telescopic outer tube is a corrugated pipe; A flexible tube is also provided between the inner tube and the telescopic outer tube, and the flexible tube is connected to the telescopic outer tube; The upper dust extraction component is connected to the inner side of the flexible tube.

[0009] By adopting the above technical solution, the use of corrugated pipe as the telescopic outer tube enhances external protection and telescopic performance; the added flexible tube isolates material dust from the telescopic outer tube and the ropes and other mechanisms of the external lifting components, preventing dust from being hidden in hard-to-clean gaps; the upper dust extraction component directly extracts dust from the inside of the flexible tube, further improving the efficiency of dust prevention and extraction, and effectively protecting the inner wall of the telescopic outer tube and the lifting components from dust contamination.

[0010] Optionally, the dry slag bulk loading machine further includes a storage component, which is used to drive at least a portion of the telescopic outer tube to fold upwards from top to bottom for storage.

[0011] By adopting the above technical solution, when the loading head rises, the storage component can guide the telescopic outer tube to fold and store in a regular and orderly manner, ensuring that the unfolded part of the lower half of the telescopic outer tube remains in the unfolded state, thus preventing the telescopic outer tube from shifting and collapsing.

[0012] Optionally, the storage assembly includes a storage drive, a rotating drum, and a lever; the lever is multiple pieces, and the multiple levers are spaced apart circumferentially on the rotating drum; the storage drive is connected to the rotating drum and is used to drive the rotating drum to rotate, so that the levers move the telescopic outer tube.

[0013] By adopting the above technical solution, a specific and highly automated mechanical storage structure is provided. The rotating drum drives the paddle plate to orderly move and guide the folding of the telescopic outer tube, ensuring the smooth and stable operation of the tube storage process.

[0014] Optionally, the dry slag bulk loading machine further includes an annular scraper, which is sleeved on the inner tube and abuts against the inner wall of the flexible tube.

[0015] By adopting the above technical solution, during the contraction and retraction of the flexible tube following the telescopic outer tube, the annular scraper can automatically scrape off the dust adhering to the inner wall of the flexible tube, effectively solving the problem of large amounts of dust sticking together and making it difficult to clean, extending the manual cleaning cycle, and ensuring the smooth flow of the dust extraction space; in addition, the annular scraper can also prevent the flexible inner tube from collapsing inward.

[0016] Optionally, the annular scraper is provided with a dust extraction port; The upper dust extraction assembly includes an upper dust extraction pipe that penetrates the top plate and communicates with the dust extraction port.

[0017] By adopting the above technical solution, the dust extraction port is directly set on the annular scraper, so that the upper dust extraction component can extract the dust nearby the moment the annular scraper scrapes off the dust, avoiding secondary dust flying and accumulation, and greatly improving the dust removal effect; in addition, when the material leaves the inner tube, the negative pressure at the dust extraction port can also immediately make the dust move upward and separate from the material.

[0018] Optionally, the dry slag bulk loading machine further includes a loading head, the top of which is connected to the telescopic outer tube, and the loading head has a loading channel that is narrow at the top and wide at the bottom; the top opening of the loading channel is circular, and its bottom opening is rectangular. The loading head is provided with a through hole for the rope to pass through.

[0019] By adopting the above technical solution, the rectangular opening design at the bottom of the loading head better fits and adapts to the shape of the bulk tanker, which is conducive to the uniform loading of dry slag materials; the circular opening at the top facilitates the sealing connection with the telescopic outer tube, while the perforated design ensures that the rope can pass smoothly and connect to the external lifting components.

[0020] Optionally, the dry slag bulk loading machine further includes a lower dust extraction component, which is connected to the loading channel.

[0021] By adopting the above technical solution, a lower dust extraction component is installed at the loading head, which can promptly capture the dust generated when the material falls into the carriage. This, together with the upper dust extraction component, forms a double dust extraction guarantee, further ensuring dust-free operation throughout the entire process.

[0022] Optionally, a dust curtain is provided at the bottom edge of the loading head.

[0023] By adopting the above technical solution, a physical isolation barrier is formed at the edge where the loading head connects with the carriage, effectively preventing the dust generated by the loading impact from dispersing into the external environment and improving the environmental performance of the equipment.

[0024] Optionally, the loading channel is also equipped with a material level detection device.

[0025] By adopting the above technical solutions, the height of materials loaded into the truck can be monitored in real time, and automatic alarm or linkage shutdown can be realized when the material is full to prevent dry residue from overflowing, thereby improving the safety and intelligence level of loading operations.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. Completely solves the problems of material jamming and outer tube collapse: Abandoning the traditional multi-section inner tube, a shorter rigid inner tube combined with a telescopic outer tube is adopted, which prevents dust from escaping and achieves stable material feeding; the telescopic outer tube is limited by ropes and limit rings to ensure that the outer tube does not deviate at any height, eliminates dust hiding space, and ensures smooth and stable negative pressure dust extraction; 2. Excellent internal self-cleaning and efficient dust removal: By adding an annular scraper with a dust extraction port that abuts against the inner flexible tube, the dust on the flexible tube wall is automatically scraped off and sucked up nearby when the telescopic outer tube retracts. Combined with the upper and lower dual dust extraction components and the bottom dust curtain, the entire process of loading and unloading dry residue is made extremely dust-free. 3. The storage component can fold and store the telescopic outer tube from top to bottom at least partially, thus avoiding the problem of slack and displacement of the telescopic outer tube caused by folding and storing it from the bottom when the loading head rises; in addition, folding and storing the telescopic outer tube from top to bottom can ensure that the undisturbed part of the flexible tube is in a taut state, which is convenient for the annular scraper to scrape dust. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural schematic diagram of the dry slag bulk loading machine in the first embodiment provided in this application; Figure 2 This is a cross-sectional view of the dry slag bulk loading machine in the first embodiment provided in this application; Figure 3 This is a three-dimensional structural schematic diagram of the dry slag bulk loading machine in the second embodiment provided in this application; Figure 4 This is a cross-sectional view of the dry slag bulk loading machine in the second embodiment provided in this application; Figure 5 This application provides Figure 4 Enlarged diagram of point A in the middle.

[0028] Explanation of reference numerals in the attached figures: 1. Top slab; 2. Inner tube; 21. Annular scraper; 3. Telescopic outer tube; 31. Flexible tube; 4. Lifting assembly; 41. Winch; 42. Rope; 43. Limit ring; 5. Loading head; 51. Loading channel; 52. Dust curtain; 6. Dust extraction assembly; 7. Material level detection component; 8. Storage components; 81. Rotating drum; 82. Dial plate; 9. Install the dust extraction component. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1 to 5 This application will be described in further detail.

[0030] Example 1

[0031] like Figures 1 to 2 As shown in the figure, this application discloses a dry slag bulk loading machine, including a top plate 1, an inner pipe 2, a telescopic outer pipe 3, a lifting component 4, a loading head 5, a lower dust extraction component 6, and a material level detection component 7.

[0032] The top plate 1 serves as the foundation bearing reference surface for the equipment and is typically horizontally positioned. The inner tube 2 is a vertically positioned rigid pipe, such as wear-resistant carbon steel or stainless steel. The top of the inner tube 2 connects to the bottom surface of the top plate 1, with its bottom end extending downwards in a suspended manner. The top plate 1 has a discharge port that communicates with the inner tube 2. Because the inner tube 2 is a single, rigid piece, it avoids the splicing gaps that occur with traditional multi-section inner tubes 2 nested together, thus completely eliminating material jamming problems during material conveying and effectively resisting the impact and mechanical friction from large particles of dry slag. The inner tube 2 can limit the material's movement in the initial stage of descent, preventing excessive material dispersion.

[0033] The telescopic outer tube 3 is coaxially sleeved on the outside of the inner tube 2, and its top is connected to the bottom surface of the top plate 1. The telescopic outer tube 3 can be made of corrugated pipe to provide good telescopic performance and external physical protection. Under maximum tension, the lowest bottom height of the telescopic outer tube 3 is lower than the bottom height of the inner tube 2, so that after the material leaves the inner tube 2, it remains inside the telescopic outer tube 3, preventing dust from escaping. The inner diameter of the telescopic outer tube 3 is large enough to avoid being impacted by materials.

[0034] The loading head 5 is located below the telescopic outer tube 3 and connected to the lower end of the telescopic outer tube 3. The loading head 5 has a loading channel 51 that is narrow at the top and wide at the bottom. The top opening of the loading channel 51 is circular to fit the cylindrical telescopic outer tube 3; the bottom opening of the loading channel 51 is rectangular. This rectangular bottom opening design can better fit and adapt to the rectangular outline of the bulk tanker compartment below, which is conducive to the even spreading of dry residue materials in the compartment.

[0035] The lifting assembly 4 includes a winch 41, which is equipped with multiple ropes 42. One end of each rope 42 is wound around the winch 41, and the other end is connected to the loading head 5. When the winch 41 rewinds, the loading head 5 rises and the telescopic outer tube 3 retracts; when the winch 41 unwinds, the loading head 5 descends, thereby stretching the telescopic outer tube 3 by gravity.

[0036] The lower dust extraction assembly 6 includes a lower dust extraction pipe. One end of the lower dust extraction pipe is connected to the loading channel 51, and the other end is connected to a negative pressure source such as a fan or vacuum pump to extract dust using negative pressure.

[0037] Furthermore, a dust curtain 52 is provided at the bottom edge of the loading head 5 to prevent dust from escaping. The dust curtain 52 may be made of rubber.

[0038] Furthermore, a material level detection element 7 is also provided in the loading channel 51, and the material level detection element 7 is fixed on the loading head 5. The material level detection element 7 can be a rotary paddle level switch. When loading materials, when the material level rises to contact the material level detection element 7, the loading head 5 is controlled to rise, so that the loading head 5 maintains a suitable distance from the material in the vehicle, ensuring that the material can continue to enter the vehicle and reducing the escape of dust.

[0039] Example 2

[0040] The difference between this embodiment and Embodiment 1 is that the material feeding and dust extraction processes have been optimized.

[0041] like Figures 3 to 5 As shown, specifically, the lifting assembly 4 also includes multiple sets of limiting groups, each corresponding to a rope 42 of the winch 41. Each limiting group includes multiple limiting rings 43 spaced vertically along the inner wall of the telescopic outer tube 3. Since the telescopic outer tube 3 is a corrugated pipe, the limiting rings 43 can be located at the point of greatest concavity (trough) in the telescopic outer tube 3. In this embodiment, one end of the rope 42 is located between the inner tube 2 and the telescopic outer tube 3 and connected to the bottom surface of the top plate 1. The other end of the rope 42 passes downwards through the multiple limiting rings 43 of the corresponding limiting group and exits from below the telescopic outer tube 3, connecting to the winch 41. The loading head 5 has a through hole for the rope 42 to pass through. The loading head 5 can still move up and down while the winch 41 is winding and unwinding. By allowing the rope 42 to pass through the limiting rings 43, the rope 42 can limit the telescopic outer tube 3, preventing it from shifting.

[0042] The dry slag bulk loading machine also includes a receiving assembly 8, which is used to drive at least a portion of the telescopic outer tube 3 to fold upwards from top to bottom for storage. Specifically, the receiving assembly 8 includes a receiving drive, a rotating drum 81, and deflectors 82. The rotating drum 81 is horizontally rotatable on the top plate 1. There are multiple deflectors 82, which are spaced circumferentially on the rotating drum 81. The receiving drive is connected to the rotating drum 81 and is used to rotate the rotating drum 81 so that each deflector 82 extends into the trough of the telescopic outer tube 3 in sequence and actuates the corrugations (outwardly protruding parts) of the telescopic outer tube 3, thereby applying an upward lifting force to the telescopic outer tube 3 and realizing the retraction of the telescopic outer tube 3. The receiving drive can be a motor. By using the lever 82 to move and lift the corrugations of the telescopic outer tube 3, an upward lifting force is generated on the telescopic outer tube 3, causing the telescopic outer tube 3 to gradually fold and retract from the upper half. Compared with the method of lifting the telescopic outer tube 3 from below by the loading head 5, this embodiment can ensure that the part of the telescopic outer tube 3 that is not lifted by the lever 82 is in the unfolded state, thus preventing the telescopic outer tube 3 from shifting.

[0043] A flexible tube 31 is installed in the annular space between the inner tube 2 and the telescopic outer tube 3. The outer wall of the flexible tube 31 is connected to the telescopic outer tube 3, specifically to the limiting ring 43. The added flexible tube 31 forms a smooth physical barrier inside, completely isolating falling material dust from the corrugated gaps of the telescopic outer tube 3, preventing dust from getting trapped in the hard-to-clean folds.

[0044] An annular scraper 21 is coaxially fitted on the outer side of the inner tube 2. The outer edge of the annular scraper 21 maintains physical contact with the smooth inner wall of the flexible tube 31, thereby providing a certain limiting effect on the flexible tube 31. In addition, when the storage component 8 applies a lifting force to the telescopic outer tube 3, it also applies an upward tensile force to the flexible tube 31, allowing the flexible tube 31 to move relative to the annular scraper 21 before being folded and stored. This allows the dust on the inner wall of the flexible tube 31 to be removed by the annular scraper 21, concentrating the dust below the annular scraper 21.

[0045] The annular scraper 21 has a vertically opening dust extraction port on its surface. The dry slag bulk loading machine also includes an upper dust extraction component 9, which includes an upper dust extraction pipe. One end of the upper dust extraction pipe passes through the top plate 1 and is connected to the dust extraction port, while the other end is connected to a negative pressure source such as a vacuum pump, so as to extract the dust that has detached from the inner pipe 2 and the dust scraped off from the flexible pipe 31 through negative pressure.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dry slag bulk loading machine, characterized in that, include: Top plate (1); The inner tube (2) is vertically arranged and its top is connected to the top plate (1). The inner tube (2) is made of rigid material. Telescopic outer tube (3) is located outside the inner tube (2) and its top is connected to the top plate (1). The lowest bottom height of the telescopic outer tube (3) is lower than the bottom height of the inner tube (2). The lifting assembly (4) includes a winch (41) and multiple sets of limiting groups. The limiting groups include multiple limiting rings (43) that are vertically spaced on the inner wall of the telescopic outer tube (3). The winch (41) is located on the top plate (1) and is equipped with multiple ropes (42). The ropes (42) correspond one-to-one with the limiting rings (43). One end of the rope (42) is located between the inner tube (2) and the telescopic outer tube (3) and is connected to the top plate (1). The other end of the rope (42) passes downward through the multiple limiting rings (43) of the corresponding limiting group and then passes out from below the telescopic outer tube (3) and is connected to the winch (41). The upper dust extraction component (9) is connected to the inner side of the telescopic outer tube (3).

2. The dry slag bulk loading machine according to claim 1, characterized in that: The telescopic outer tube (3) is a corrugated pipe; A flexible tube (31) is also provided between the inner tube (2) and the telescopic outer tube (3), and the flexible tube (31) is connected to the telescopic outer tube (3); The upper dust extraction component (9) is connected to the inner side of the flexible tube (31).

3. The dry slag bulk loading machine according to claim 2, characterized in that: The dry slag bulk loading machine also includes a storage component (8), which is used to drive at least a portion of the telescopic outer tube (3) to fold upwards from top to bottom for storage.

4. The dry slag bulk loading machine according to claim 3, characterized in that: The storage assembly (8) includes a storage drive, a rotating cylinder (81) and a lever (82); there are multiple levers (82), and the multiple levers (82) are spaced apart on the rotating cylinder (81) in the circumferential direction; the storage drive is connected to the rotating cylinder (81) and is used to drive the rotating cylinder (81) to rotate so that the levers (82) can move the telescopic outer tube (3).

5. The dry slag bulk loading machine according to claim 3, characterized in that: The dry slag bulk loading machine also includes an annular scraper (21), which is sleeved on the inner tube (2) and abuts against the inner wall of the flexible tube (31).

6. The dry slag bulk loading machine according to claim 5, characterized in that: The annular scraper (21) is provided with a dust extraction port; The upper dust extraction assembly (9) includes an upper dust extraction pipe that penetrates the top plate (1) and is connected to the dust extraction port.

7. The dry slag bulk loading machine according to claim 1, characterized in that: The dry slag bulk loading machine also includes a loading head (5), the top of which is connected to the telescopic outer tube (3), and the loading head (5) has a loading channel (51) that is narrow at the top and wide at the bottom; the top opening of the loading channel (51) is circular and the bottom opening is rectangular. The loading head (5) is provided with a through hole for the rope (42) to pass through.

8. The dry slag bulk loading machine according to claim 7, characterized in that: The dry slag bulk loading machine also includes a lower dust extraction component (6), which is connected to the loading channel (51).

9. The dry slag bulk loading machine according to claim 7, characterized in that: The bottom edge of the loading head (5) is provided with a dust curtain (52).

10. The dry slag bulk loading machine according to claim 7, characterized in that: The loading channel (51) is also equipped with a material level detection device (7).

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