Boiler fuel pushing structure

Abstract

The utility model provides a boiler fuel pushing structure, which belongs to the technical field of boiler feeding and comprises a material carrying frame and a guide carrying frame, the material carrying frame is fixedly connected with the guide carrying frame, a material carrying table is arranged on the material carrying frame, and an execution element is arranged on the inner wall of one side, far away from the material carrying frame, of the guide carrying frame. A material pushing part corresponding to the material carrying table is arranged at the movable end of the execution element, a feeding frame in linkage with the material pushing part is arranged on the guiding carrying frame in a sliding mode, a directional deviation preventing assembly for preventing the feeding frame from deviating is arranged on the guiding carrying frame, and in the process that the material pushing part pushes fuel into the boiler, the material pushing part is tightly attached to the inner wall of the guiding carrying frame through the feeding frame. And the feeding frame is limited in all directions, so that the position deviation of the material pushing part is prevented, and the stability of the fuel feeding process is ensured. Contact abrasion between the feeding vehicle frame and the guiding carrier frame is prevented through the directional deviation preventing assembly, abrasion between the feeding vehicle frame and the material pushing part is reduced, and then the service life of all components is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler feeding, and specifically relates to a boiler fuel pushing structure. Background Technique

[0002] A boiler is an energy conversion device. The energy input into the boiler includes the chemical energy in the fuel and electrical energy. The boiler outputs steam, high-temperature water or organic heat carriers with a certain amount of heat energy. The original meaning of "pot" refers to a water container heated on fire, and "furnace" refers to a place for burning fuel. The boiler includes two major parts: the pot and the furnace. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's livelihood, or can be converted into mechanical energy through a steam power device, or further converted into electrical energy through a generator. A boiler that provides hot water is called a hot water boiler, which is mainly used for life and has a small amount of applications in industrial production. A boiler that generates steam is called a steam boiler, often simply referred to as a boiler, and is mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises. When the boiler is in use, fuel needs to be put into it to ensure the combustion temperature inside the boiler.

[0003] A feeding device for a straw-burning boiler is disclosed in the related technology (publication number: CN221684594U). The disclosed technical solution: bales are sent to the feeding roller row manually or mechanically, and then sent to the tipping bucket through the feeding roller row. The tipping bucket tilts sideways, pouring the bales into the bale inlet. The pushing oil cylinder drives the pusher through the connecting rod to pull the pushing plate and the bottom plate of the pusher frame, so that the bales move forward. The bales enter the bale disassembling part; the pulling slideway is driven by the connecting rod to drive the pulling slide plate to rotate along the pulling rotating shaft, and the breaker makes an arc-shaped movement, so that the breaker is buried or extended, and reciprocates to break the bales. After being broken, they fall into the upper chamber of the boiler for combustion. The structure of the utility model is simple, and the straw packed in bales has high thermal efficiency and good effect after being disassembled and burned in the furnace.

[0004] In the above-mentioned disclosed technical solution, it is found that the following problems exist in the related technology: With the excessive number of times of pushing the boiler fuel, the wear between the various components on the pushing structure is relatively serious, and finally the deviation occurs in the pushing process. After the feeding deviation occurs, in order not to affect the boiler feeding, it is necessary to replace the pushing components. Since the boiler has a large specification, the replacement process of the adapted pushing components is relatively cumbersome. For this reason, we propose a new type of boiler fuel pushing structure.

[0005] It should be noted that the information disclosed in the above background art part is only used to strengthen the understanding of the background art part of the present application, and thus may include prior art information that does not constitute known to those of ordinary skill in the art. Content of the Utility Model

[0006] The present utility model aims to solve at least one of the technical problems existing in the prior art or related technologies. To solve the problem of stable pushing of boiler fuel in the above-mentioned prior art, the present utility model provides a boiler fuel pushing structure, which combines a fuel pushing structure with a stable anti-offset structure to achieve the effects of stable pushing and reduced part wear. The specific technical solution is as follows:

[0007] A boiler fuel pushing structure includes a loading rack and a guiding loading rack, and the loading rack is fixedly connected to the guiding loading rack. A loading table is arranged on the loading rack, and an actuating element is arranged on the inner wall of the guiding loading rack away from the loading rack. A pushing member corresponding to the loading table is arranged at the movable end of the actuating element. A feeding vehicle frame linked with the pushing member is slidably arranged on the guiding loading rack, and a directional anti-offset assembly for preventing the feeding vehicle frame from offsetting is arranged on the guiding loading rack.

[0008] In the above technical solution, the directional anti-offset assembly includes a directional track embedded in the guiding loading rack. A suspension wheel set is arranged at the bottom of the feeding vehicle frame, and the suspension wheel set is slidably arranged on the outer wall of the directional track in a covering manner.

[0009] The suspension wheel set includes a wheel frame fixed to the bottom of the feeding vehicle frame. Guide wheels are symmetrically rotatably arranged in the inner cavity of the wheel frame, and the guide wheels are symmetrically slidably arranged on the outer wall of the directional track.

[0010] Guide seats are symmetrically arranged at the top of the feeding vehicle frame. A guide rail is arranged between the loading rack and the guiding loading rack, and the guide seats are sleeved outside the guide rail.

[0011] A magnetostrictive liquid level gauge is arranged on the guiding loading rack, and the magnetostrictive liquid level gauge is connected to the actuating element.

[0012] An upper feeding baffle fixed to the inner wall of the loading rack is arranged above the loading table.

[0013] The upper feeding baffle corresponds to the pushing member.

[0014] The pushing member covers the bottom of the side wall of the feeding vehicle frame.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: This boiler fuel pushing structure:

[0016] First, during the process of pushing fuel into the boiler, the pushing member is in close contact with the inner wall of the guiding loading rack through the feeding vehicle frame, and the feeding vehicle frame is limited in all directions, thereby preventing the position of the pushing member from offsetting and ensuring the stability of the fuel feeding process.

[0017] II. By means of the directional anti-deviation component, contact wear between the feeding vehicle frame and the guiding carrier is prevented, wear of the feeding vehicle frame and the pusher is reduced, and thus the service life of each component is prolonged.

[0018] III. Through the multi-directional sliding fit of the suspension wheel set with the directional track, it helps to guide the wheels to move along a predetermined trajectory, ensures good contact between the guide wheels and the directional track, thereby improving the stability during the displacement process. The suspended guide wheels help reduce wear and extend the service life of the guide wheels, and thus ensure the accuracy of boiler feeding.

[0019] IV. During the process of driving the pusher to move by the actuator, the pusher drives the feeding vehicle frame to move. At the same time, the feeding vehicle frame drives the guide seat to slide along the outer wall of the guide rail. Through the sliding fit between the guide seat and the guide rail, the position deviation of the pusher is prevented, thereby ensuring the stability of the feeding and pushing process.

[0020] V. By monitoring the position of the movable end of the actuator through the magnetostrictive liquid level gauge and setting sensors, the process of pushing fuel into the boiler becomes more intelligent. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural view of a boiler fuel pushing structure of the present utility model Figure 1 ;

[0022] Figure 2 is a schematic structural view of a boiler fuel pushing structure of the present utility model Figure 2 ;

[0023] Figure 3 is an exploded schematic structural view of a boiler fuel pushing structure of the present utility model;

[0024] Figure 4 is a schematic partial structural view of the feeding vehicle frame of the present utility model;

[0025] Among them, Figures 1 to 4 the corresponding relationship between the reference numerals in the drawings and the component names is as follows: 1 - loading rack, 2 - loading platform, 4 - pusher, 5 - feeding vehicle frame, 6 - actuator, 7 - feeding baffle, 8 - directional track, 9 - guide wheel, 10 - magnetostrictive liquid level gauge, 11 - guiding carrier, 12 - base, 13 - wall surface, 14 - guide rail, 15 - guide seat, 16 - wheel rack. SPECIFIC EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] The following combines specific implementation cases and attached Figures 1-4 to further illustrate the present invention, but the present invention is not limited to these embodiments.

[0028] A boiler fuel feeding structure includes a material loading rack 1 and a guiding loading rack 11, and the material loading rack 1 is fixedly connected to the guiding loading rack 11. The guiding loading rack 11 is fixedly attached to the wall surface 13, and is fixedly connected to one side of the material loading rack 1 horizontally. The other side of the material loading rack 1 is fixedly connected to the boiler rack. A material loading platform 2 is embedded in the inner cavity of the material loading rack 1, and a conveyor belt is sleeved outside the material loading platform 2. The material loading platform 2 is fixed inside the material loading rack 1, and the position of the material loading platform 2 corresponds to the boiler feed inlet.

[0029] The conveyor belt is wound around the outside of the material loading platform 2 and is sleeved outside two conveyor rollers, and one of the conveyor rollers is fixedly connected to the output shaft of the driving motor. The fuel is conveyed to above the material loading platform 2 through the conveyor belt.

[0030] The fuel of the straw bale is conveyed through the conveyor belt.

[0031] A material loading platform 2 is provided on the material loading rack 1. An actuating element 6 is provided on the inner wall of the guiding loading rack 11 away from the material loading rack 1, and a pusher 4 corresponding to the material loading platform 2 is provided at the movable end of the actuating element 6. The actuating element 6 can be a hydraulic cylinder. The cylinder end of the hydraulic cylinder is vertically fixed on the surface of the base 12, the base 12 is fixedly attached to the wall surface 13, and the base 12 is fixedly embedded and installed on the guiding loading rack 11. The movable end of the hydraulic cylinder is vertically fixed on the surface of the pusher 4, and the specifications and position of the pusher 4 correspond to the material loading platform 2, so that when the hydraulic cylinder drives the pusher 4 to move, the pusher 4 slides on the surface of the material loading platform 2.

[0032] A feeding vehicle frame 5 linked with the pusher 4 is slidably arranged on the guiding loading rack 11, and a directional anti-deviation assembly for preventing the feeding vehicle frame 5 from deviating is arranged on the guiding loading rack 11. The pusher 4 can be a plate body, and the pusher 4 is fixedly attached to the surface of the feeding vehicle frame 5 facing the boiler, so that the feeding vehicle frame moves horizontally on the guiding loading rack 11.

[0033] During the process of pushing the fuel into the boiler by the pusher 4, the pusher 4 is in close contact with the inner wall of the feeding vehicle frame 5 through the feeding vehicle frame 5, and the feeding vehicle frame 5 is limited in all directions, thereby preventing the position deviation of the pusher 4 and ensuring the stability of the fuel feeding process. The directional anti-deviation component prevents the contact wear between the feeding vehicle frame 5 and the guiding carrier 11, reduces the wear of the feeding vehicle frame 5 and the pusher 4, and thus improves the service life of each component.

[0034] When the fuel is pushed by the pusher 4, continuous feeding can be achieved, and each time the straw bale is 1000 Kg to 3000 Kg.

[0035] Among them, the directional anti-deviation component includes a directional track 8 embedded in the guiding carrier 11. A suspension wheel set is arranged at the bottom of the feeding vehicle frame 5, and the suspension wheel set is slidably arranged on the outer wall of the directional track 8 in a covering manner. Two groups of suspension wheel sets are symmetrically arranged at the bottom of the feeding vehicle frame 5 close to the wall surface 13. The guide wheels 9 of the suspension wheel sets are respectively in sliding contact with the outer wall of the directional track 8. Through the multi-directional sliding cooperation of the suspension wheel set with the directional track 8, it helps to guide the wheels to move along a predetermined trajectory, ensures good contact between the guide wheels and the directional track 8, and thus improves the stability of the displacement process. The suspended guide wheels help to reduce wear and extend the service life of the guide wheels 9, and thus ensure the accuracy of boiler feeding.

[0036] It should be noted that the suspension wheel set includes a wheel frame 16 fixed to the bottom of the feeding vehicle frame 5. Guide wheels 9 are symmetrically rotatably arranged in the inner cavity of the wheel frame 16, and the guide wheels 9 are symmetrically slidably arranged on the outer wall of the directional track 8. Two wheel frames 16 are vertically fixedly installed at the bottom of the feeding vehicle frame 5 and on one side close to the wall surface 13. Two groups of bearings are symmetrically embedded and installed on the inner walls on both sides of each wheel frame 16. The two ends of the four central shafts are respectively embedded and installed inside the corresponding bearings, so that there are four mutually parallel central shafts rotating on each wheel frame 16. Each guide wheel 9 is fixedly sleeved on the outside of each central shaft through the central mounting hole, so that the four guide wheels 9 symmetrically arranged up and down are divided into two groups, and the four guide wheels 9 symmetrically arranged up and down are in sliding contact with the directional track 8.

[0037] Through the two groups of upper and lower suspended guide wheels 9, the wear during the movement of the feeding vehicle frame 5 is reduced, and the service life is improved while ensuring the accuracy of the feeding position.

[0038] In addition, guide seats 15 are symmetrically arranged at the top of the feeding vehicle frame 5. A guide rail 14 is arranged between the loading rack 1 and the guiding loading rack 11, and the guide seats 15 are sleeved outside the guide rail 14. The two cylindrical guide rails 14 are fixedly arranged parallel to each other between the loading rack 1 and the guiding loading rack 11, that is, one end of the guide rail 14 is vertically fixed on the inner wall of the guiding loading rack 11 close to the wall surface 13, and the other end of the guide rail 14 is vertically fixed on the inner wall of the loading rack 1 close to the boiler. The two guide seats 15 are fixedly arranged parallel to each other at the top of the feeding vehicle frame 5, and the guide seats 15 are movably sleeved outside the guide rail 14 through through holes transversely opened through the inner cavity.

[0039] During the process of driving the pusher 4 to move by the actuator 6, the pusher 4 drives the feeding vehicle frame 5 to move, and at the same time, the feeding vehicle frame 5 drives the guide seat 15 to slide on the outer wall of the guide rail 14. Through the sliding fit between the guide seat 15 and the guide rail 14, the position deviation of the pusher 4 is prevented, thereby ensuring the stability of the feeding and pushing process.

[0040] In addition, a magnetostrictive liquid level gauge 10 is arranged on the guiding loading rack 11, and the magnetostrictive liquid level gauge 10 is connected to the actuator 6.

[0041] When in use, the measuring rod of the magnetostrictive displacement sensor 10 passes through the magnetic ring and is inserted into the hollow piston inner cavity of the oil cylinder. Ensure that the measuring rod has no contact with the magnetic ring, but should be kept on the same axis to reduce the measurement error. The position of the movable end of the actuator 6 is monitored through the magnetostrictive liquid level gauge 10, and through the arranged sensors, the process of pushing fuel into the boiler is made more intelligent.

[0042] Furthermore, a feeding baffle 7 fixedly connected to the inner wall of the loading rack 1 is arranged above the loading table 2. The feeding position of the feeder is limited by the feeding baffle 7, and signals are transmitted to the actuator 6 through the mutual induction of the sensors arranged on the feeding baffle 7 and the sensors on the feeder, making the operation of the boiler fuel feeding process more convenient, thereby improving the efficiency.

[0043] The feeding baffle 7 corresponds to the pusher 4. The position of the feeding baffle 7 corresponds to the pusher 4, and the shape of the side of the pusher 4 also corresponds to the feeding baffle 7.

[0044] During the process of the pusher 4 pushing the material, the pusher 4 slides on the surface of the feeding baffle 7, thereby ensuring that the fuel is pushed more thoroughly.

[0045] The pusher 4 covers the bottom of the side wall of the feeding vehicle frame 5. The specification of the pusher 4 ensures that the bottom edge of the surface where the feeding vehicle frame 5 is attached is covered, thereby preventing the feeding vehicle frame 5 from interfering with the feeding process.

[0046] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "center", "both ends", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0047] In addition, the terms "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", "fourth" may explicitly or implicitly include at least one of such features.

[0048] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A boiler fuel feeding structure, characterized in that: It includes a loading rack (1) and a guiding loading rack (11), and the loading rack (1) is fixedly connected to the guiding loading rack (11). A loading table (2) is arranged on the loading rack (1). An actuating element (6) is arranged on the inner wall of the side of the guiding loading rack (11) away from the loading rack (1). A pushing member (4) corresponding to the loading table (2) is arranged at the movable end of the actuating element (6). A feeding vehicle frame (5) linked with the pushing member (4) is slidably arranged on the guiding loading rack (11). A directional anti-deviation assembly for preventing the feeding vehicle frame (5) from deviating is arranged on the guiding loading rack (11).

2. The boiler fuel feeding structure according to claim 1, wherein: The directional anti-deviation assembly includes a directional track (8) embedded in the guiding loading rack (11). A suspension wheel set is arranged at the bottom of the feeding vehicle frame (5), and the suspension wheel set is slidably arranged on the outer wall of the directional track (8) in a covering manner.

3. A boiler fuel feeding structure according to claim 2, characterized in that: The suspension wheel set includes a wheel frame (16) fixed to the bottom of the feeding vehicle frame (5). Guide wheels (9) are symmetrically and rotatably arranged in the inner cavity of the wheel frame (16), and the guide wheels (9) are symmetrically and slidably arranged on the outer wall of the directional track (8).

4. A boiler fuel feeding structure according to claim 1, characterized in that: Guide seats (15) are symmetrically arranged at the top of the feeding vehicle frame (5). A guide rail (14) is arranged between the loading rack (1) and the guiding loading rack (11), and the guide seats (15) are sleeved outside the guide rail (14).

5. A boiler fuel feeding structure according to claim 1, characterized in that: A magnetostrictive liquid level gauge (10) is arranged on the guiding loading rack (11), and the magnetostrictive liquid level gauge (10) is connected to the actuating element (6).

6. A boiler fuel feeding structure according to claim 1, characterized in that: An upper feeding baffle (7) fixed to the inner wall of the loading rack (1) is arranged above the loading table (2).

7. A boiler fuel feeding structure according to claim 6, characterized in that: The upper feeding baffle (7) corresponds to the pushing member (4).

8. A boiler fuel feeding structure according to claim 1, characterized in that: The pushing member (4) covers the bottom of the side wall of the feeding vehicle frame (5).

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