Chain row type biomass boiler

Abstract

The chain row type biomass boiler comprises a boiler body and a feeding and slag discharging box, a furnace opening is formed in one side of the boiler body, the feeding and slag discharging box is fixedly installed at the position of the furnace opening, driving shafts are symmetrically installed in an inner cavity of the boiler body and an inner cavity of the feeding and slag discharging box, and first installation rollers are fixedly installed on the driving shafts. A feeding chain plate is mounted between the two first mounting rollers in a sleeving mode, a plurality of air supply holes are evenly formed in the feeding chain plate, a servo motor is connected to one end of the driving shaft on one side, fixing plates are correspondingly and fixedly mounted on the two sides of the inner wall of the boiler body and the two sides of the inner wall of the feeding and slag discharging box, and a plurality of reset springs are mounted on the fixing plates. The movable end of the reset spring is connected with a linkage plate. The utility model has the beneficial effects that: on the premise that an electric telescopic mechanism is not used, the deslagging and unblocking of the air supply hole can be realized, the use reliability is higher, the manufacturing cost of the device and the power consumption during use are reduced, and the practicability is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of biomass boilers, in particular to a chain-type biomass boiler. Background Art

[0002] Biomass boiler is a type of boiler. A boiler that uses biomass energy as fuel is called a biomass boiler. It is divided into biomass steam boiler, biomass hot water boiler, biomass hot air furnace, biomass thermal oil furnace, vertical biomass boiler, horizontal biomass boiler, etc. The biomass fuel used in the biomass boiler needs to be placed on the grate for full combustion, and chain plate grates are often used to transport biomass fuel.

[0003] The prior art discloses a chain plate grate structure of a biomass boiler with publication number: CN219389779U, comprising a grate body and a slag discharge mechanism arranged on the grate body, the slag discharge mechanism corresponding to the lower rotary belt of the grate body, the slag discharge mechanism comprising a telescopic mechanism and an impact pin arranged on the telescopic end of the telescopic mechanism, a plurality of the impact pins intermittently telescopically impact in the normal direction of the chain plate through the telescopic mechanism; when the air supply hole is displaced to be in line with the pin, the impact pin telescopically impacts the air supply hole, which can discharge slag and clear the blocked air supply hole, so that the air supply hole is fully supplied with air.

[0004] When the above utility model is in use, it is necessary to utilize the telescopic mechanism to drive the impact pin to intermittently impact a number of air supply holes opened on the chain plate, so as to remove slag and clear the blocked air supply holes to prevent the blockage of the air supply holes from affecting the combustion efficiency of the biomass fuel. However, installing an electric telescopic mechanism at a furnace mouth with a higher temperature is prone to mechanical failure, and installing an electrically controlled telescopic mechanism will increase the production and manufacturing cost of the device and the power consumption during use, so its practicality is relatively general. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the utility model provides a chain-type biomass boiler, which can remove slag and clear blockages in the air supply holes without using an electric telescopic mechanism. It is not only more reliable in use, but also reduces the manufacturing cost of the device and the power consumption during use, and has the advantage of being more practical, thereby solving the problems in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned advantages of being able to discharge slag and clear blockage of the air supply hole without using an electric telescopic mechanism, not only is the reliability of use stronger, but also the manufacturing cost of the device and the power consumption during use are reduced, and the practicality is stronger. The specific technical scheme adopted by the utility model is as follows: a chain-type biomass boiler, including a boiler body and a feed slag box, a furnace port is opened on one side of the boiler body, and a feed slag box is fixedly installed at the furnace port, the boiler body and the inner cavity of the feed slag box are symmetrically installed with a driving shaft, and a first mounting roller is fixedly installed on the driving shaft, and two A feed chain plate is sleeved and installed between the first mounting rollers, and a plurality of air supply holes are evenly opened on the feed chain plate, a servo motor is connected to one end of the driving shaft on one side, fixed plates are fixedly installed correspondingly on both sides of the boiler body and the inner wall of the feed and slag box, and a plurality of return springs are installed on the fixed plate, and a linkage plate is connected to the movable end of the return spring, a hollow plate is fixedly installed on the top of the four linkage plates, and a plurality of impact pins are evenly installed on the bottom of the hollow plate, and rotating pressure rods are symmetrically fixedly installed at both ends of the two driving shafts, and the rotating pressure rods are located directly above the linkage plates.

[0009] Furthermore, a driven shaft is correspondingly installed on the boiler body and the inner wall of the feed and slag box, and a second mounting roller is fixedly installed on the driven shaft, a slag discharge chain plate is sleeved between the two second mounting rollers, a first gear is fixedly installed on one end of the driving shaft on one side, and a second gear is fixedly installed on one end of the driven shaft on one side, and the second gear is meshed with the first gear.

[0010] Furthermore, a feed hopper is installed on the top surface of the feed and slag discharge box, and a feed pipe is installed on the top surface of the feed hopper.

[0011] Furthermore, one side of the inner cavity of the boiler body is connected to an air inlet pipe.

[0012] Furthermore, a slag discharge pipe is installed on one side of the bottom of the inner cavity of the feed and slag discharge box.

[0013] Furthermore, the cross-section of the linkage plate is L-shaped.

[0014] Furthermore, the diameter of the impact pin is smaller than the diameter of the air supply hole.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a chain-type biomass boiler, which has the following beneficial effects:

[0017] (1) The utility model is provided with a feed chain plate, air supply holes, a hollow plate and an impact pin. A furnace port is provided on one side of the boiler body, and a feed slag box is fixedly installed at the furnace port, and the top surface of the feed slag box is connected to the feed box. A driving shaft is symmetrically installed on the inner cavity of the boiler body and the feed slag box, and a first mounting roller is fixedly installed on the driving shaft. A feed chain plate is sleeved and installed between two first mounting rollers, and a number of air supply holes are evenly opened on the feed chain plate. A servo motor is connected to one end of the driving shaft on one side. When in use, the servo motor can drive the driving shaft to rotate step by step. On the other hand, the inner wall of the boiler body and the inner wall of the feed slag box are provided on both sides. A fixed plate is fixedly installed on the corresponding side, and several return springs are installed on the fixed plate, and the movable end of the return spring is connected to a linkage plate, and a hollow plate is fixedly installed on the top of the four linkage plates, and several impact pins are evenly installed on the bottom of the hollow plate. When working, the biomass fuel is introduced into the feed hopper through the feed pipe, and enters the inner cavity of the feed slag box through the feed hopper, and the biomass fuel falls on the upper end surface of the feed chain plate. When the servo motor drives the active shaft to rotate step by step, the feed chain plate can drive the biomass fuel to step into the inner cavity of the boiler body for combustion. One side of the boiler body is connected with an air inlet pipe. When the combustion-supporting air enters the inner cavity of the boiler body through the air inlet pipe, it can be supplied The air holes are in full contact with the biomass fuel to ensure the combustion efficiency of the boiler. The slag produced after the combustion of the biomass fuel moves to the lower end surface of the feed chain plate, and part of the slag is embedded in the air supply holes. Rotating pressure rods are symmetrically fixedly installed at both ends of the active shaft. When the active shaft drives the rotating pressure rod to rotate 180 degrees in a step-by-step manner, one end of the rotating pressure rod abuts against the top surface of the linkage plate. At this time, the reset spring installed between the connecting plate and the fixed plate is compressed, which can drive the hollow plate and the impact pin to move downward. When the active shaft drives the first installation roller to rotate at a certain angle, the feed chain plate travels a certain distance, which can ensure that the air supply hole moves to below the impact pin at this time. The air supply hole is set to be The flared structure and the impact pin are hard elastic rod structures, so it can be ensured that the impact pin can be accurately inserted into the air supply hole during the process, so as to realize the slag removal and unblocking of the air supply hole. When the driving shaft drives the rotating pressure rod to rotate again, one end of the rotating pressure rod is separated from the top surface of the linkage plate, and the hollow plate and the impact pin are reset under the elastic force of the reset spring to prevent the impact pin from obstructing the moving feed chain plate. In this way, a chain-type biomass boiler can realize the slag removal and unblocking of the air supply hole without using an electric telescopic mechanism. It not only has higher reliability in use, but also reduces the manufacturing cost of the device and the power consumption during use, and is more practical.

[0018] (2) The utility model is provided with a feed chain plate and a slag discharge chain plate. As mentioned above, the feed chain plate installed on the first mounting roller can realize the feeding and combustion of biomass fuel, and the slag produced by the combustion can move to the lower end surface of the feed chain plate with the rotation of the first mounting roller. On the other hand, a driven shaft is installed corresponding to the inner wall of the boiler body and the feed and slag discharge box, and a second mounting roller is fixedly installed on the driven shaft, and a slag discharge chain plate is sleeved between the two second mounting rollers. When the slag moves to the lower end surface of the feed chain plate, it can be moved under the action of gravity. The slag is transported from the inner cavity of the boiler body to the bottom of the inner cavity of the feed slag box, and finally discharged through the slag discharge pipe for cleaning, which can effectively prevent the slag from accumulating at the bottom of the inner cavity of the boiler body, and is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a structural schematic diagram of a chain-type biomass boiler according to an embodiment of the utility model;

[0021] Figure 2 This is a front view of a chain-type biomass boiler according to an embodiment of the utility model;

[0022] Figure 3 According to the embodiment of the utility model Figure 1 A magnified image of point A;

[0023] Figure 4 It is a three-dimensional diagram of a hollow plate of a chain-type biomass boiler according to an embodiment of the utility model.

[0024] In the figure:

[0025] 1. Boiler body; 2. Furnace mouth; 3. Driven shaft; 4. Slag discharge pipe; 5. Second mounting roller; 6. First mounting roller; 7. Feed and slag discharge box; 8. Feed hopper; 9. Feed pipe; 10. Rotating pressure rod; 11. Linking plate; 12. Feed chain plate; 13. Hollow plate; 14. Impact pin; 15. Air inlet pipe; 16. Slag discharge chain plate; 17. Servo motor; 18. First gear; 19. Second gear; 20. Driving shaft; 21. Air supply hole; 22. Fixed plate; 23. Reset spring. DETAILED DESCRIPTION

[0026] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0027] According to an embodiment of the utility model, a chain-type biomass boiler is provided.

[0028] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, a chain-type biomass boiler according to an embodiment of the utility model comprises a boiler body 1 and a feed slag box 7, a furnace port 2 is provided on one side of the boiler body 1, and a feed slag box 7 is fixedly installed at the furnace port 2, a driving shaft 20 is symmetrically installed in the inner cavity of the boiler body 1 and the feed slag box 7, and a first mounting roller 6 is fixedly installed on the driving shaft 20, a feed chain plate 12 is sleeved and installed between the two first mounting rollers 6, and a plurality of air supply holes 21 are evenly provided on the feed chain plate 12, a servo motor 17 is connected to one end of the driving shaft 20 on one side, and fixed rollers 20 are correspondingly fixedly installed on both sides of the inner wall of the boiler body 1 and the feed slag box 7. A fixed plate 22 is provided, and a plurality of return springs 23 are installed on the fixed plate 22, and the movable end of the return spring 23 is connected to the linkage plate 11, a hollow plate 13 is fixedly installed on the top of the four linkage plates 11, and a plurality of impact pins 14 are evenly installed on the bottom of the hollow plate 13, and a rotating pressure rod 10 is symmetrically fixedly installed at both ends of the two active shafts 20, and the rotating pressure rod 10 is located directly above the linkage plate 11, which can realize the slag removal and clearing of the air supply hole 21 without using the electric telescopic mechanism, which not only has stronger reliability in use, but also reduces the manufacturing cost of the device and the power consumption during use, and is more practical.

[0029] In one embodiment, a driven shaft 3 is correspondingly installed on the inner wall of the boiler body 1 and the feed slag box 7, and a second mounting roller 5 is fixedly installed on the driven shaft 3, and a slag discharge chain plate 16 is sleeved between the two second mounting rollers 5. A first gear 18 is fixedly installed on one end of the driving shaft 20 on one side, and a second gear 19 is fixedly installed on one end of the driven shaft 3 on one side, and the second gear 19 is meshed with the first gear 18, which can transport the slag from the inner cavity of the boiler body 1 to the bottom of the inner cavity of the feed slag box 7, and finally lead it out through the slag discharge pipe 4 for cleaning, which can effectively prevent the slag from accumulating at the bottom of the inner cavity of the boiler body 1, and is more practical.

[0030] In one embodiment, a feed hopper 8 is installed on the top surface of the feed and slag box 7 , and a feed pipe 9 is installed on the top surface of the feed hopper 8 , which serves to guide the biomass fuel into the inner cavity of the feed and slag box 7 .

[0031] In one embodiment, one side of the inner cavity of the boiler body 1 is connected to an air inlet pipe 15, which serves to introduce combustion-supporting air into the inner cavity of the boiler body.

[0032] In one embodiment, a slag discharge pipe 4 is installed on one side of the bottom of the inner cavity of the feed and slag discharge box 7 to discharge the collected slag from the inner cavity of the feed and slag discharge box 7.

[0033] In one embodiment, the cross-section of the linkage plate 11 is L-shaped.

[0034] In one embodiment, the diameter of the impact pin 14 is smaller than the diameter of the air supply hole 21 .

[0035] Working principle: The utility model is provided with a feed chain plate 12, air supply holes 21, a hollow plate 13 and an impact pin 14, a furnace port 2 is provided on one side of the boiler body 1, and a feed slag box 7 is fixedly installed at the furnace port 2, and the top surface of the feed slag box 7 is connected with the feed box, the inner cavity of the boiler body 1 and the feed slag box 7 is symmetrically installed with a driving shaft 20, and a first mounting roller 6 is fixedly installed on the driving shaft 20, a feed chain plate 12 is sleeved and installed between the two first mounting rollers 6, and a plurality of air supply holes 21 are evenly opened on the feed chain plate 12, one end of the driving shaft 20 on one side is connected with a servo motor 17, when in use, the servo motor 17 can drive the driving shaft 20 to rotate in steps, on the other hand, the inner wall of the boiler body 1 on both sides and the feed slag box Fixed plates 22 are correspondingly fixedly installed on both sides of the inner wall of the box 7, and a number of return springs 23 are installed on the fixed plates 22, and the movable end of the return spring 23 is connected to the linkage plate 11, and the tops of the four linkage plates 11 are fixedly installed with hollow plates 13, and a number of impact pins 14 are evenly installed on the bottom of the hollow plates 13. When working, the biomass fuel is introduced into the feed hopper 8 through the feed pipe 9, and enters the inner cavity of the feed and slag box 7 through the feed hopper 8, and the biomass fuel falls on the upper end surface of the feed chain plate 12. When the servo motor 17 drives the driving shaft 20 to rotate step by step, the feed chain plate 12 can drive the biomass fuel to step into the inner cavity of the boiler body 1 for combustion. One side of the boiler body 1 is connected to the air inlet pipe 15, and the combustion air enters the boiler body 1 through the air inlet pipe 15 When the boiler is in the inner cavity, it can fully contact with the biomass fuel through the air supply hole 21 to ensure the combustion efficiency of the boiler. The slag produced after the combustion of the biomass fuel moves to the lower end surface of the feed chain plate 12, and part of the slag is embedded in the air supply hole 21. The two ends of the active shaft 20 are symmetrically fixed with rotating pressure rods 10. When the active shaft 20 drives the rotating pressure rod 10 to rotate one hundred and eighty degrees in a step-by-step manner, one end of the rotating pressure rod 10 abuts against the top surface of the linkage plate 11. At this time, the return spring 23 installed between the connecting plate and the fixed plate 22 is compressed, which can drive the hollow plate 13 and the impact pin 14 to move downward. When the active shaft 20 drives the first installation roller 6 to rotate at a certain angle, the feed chain plate 12 has a certain travel distance, which can ensure that the air supply hole 21 moves to the bottom of the impact pin 14 at this time. The air supply hole 21 is a flared structure, and the impact pin 14 is a hard elastic rod structure, so it can be ensured that the impact pin 14 can be accurately inserted into the air supply hole 21 during the process, so as to realize the slag removal and blockage clearing of the air supply hole 21. When the driving shaft 20 drives the rotating pressure rod 10 to rotate again, one end of the rotating pressure rod 10 is separated from the top surface of the linkage plate 11, and the hollow plate 13 and the impact pin 14 are reset under the elastic force of the reset spring 23 to prevent the impact pin 14 from obstructing the moving feed chain plate 12. In this way, a chain-type biomass boiler can realize the slag removal and blockage clearing of the air supply hole 21 without using an electric telescopic mechanism, which not only has stronger reliability in use, but also reduces the manufacturing cost of the device and the power consumption during use.It is more practical. In addition, the utility model is provided with a feed chain plate 12 and a slag discharge chain plate 16. As mentioned above, the feed chain plate 12 installed on the first mounting roller 6 can realize the feeding and combustion of biomass fuel, and the slag produced by the combustion can move to the lower end surface of the feed chain plate 12 with the rotation of the first mounting roller 6. On the other hand, the inner wall of the boiler body 1 and the feed slag box 7 is correspondingly installed with a driven shaft 3, and a second mounting roller 5 is fixedly installed on the driven shaft 3, and a slag discharge chain plate 16 is sleeved between the two second mounting rollers 5. When the slag moves to the lower end surface of the feed chain plate 12, it can be moved under the action of gravity. The slag chain plate 16 is dropped on the upper end surface thereof. Since the first gear 18 is fixedly mounted on one end of the driving shaft 20 and the second gear 19 is fixedly mounted on one end of the driven shaft 3, and the second gear 19 meshes with the first gear 18, when the driving shaft 20 drives the feeding chain plate 12 to rotate clockwise, the driven shaft 3 can simultaneously drive the slag chain plate 16 to rotate counterclockwise, thereby transporting the slag from the inner cavity of the boiler body 1 to the inner cavity bottom of the feeding slag box 7, and finally leading it out through the slag discharge pipe 4 for cleaning, which can effectively prevent the slag from accumulating at the inner cavity bottom of the boiler body 1, and is more practical.

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chain-type biomass boiler, comprising a boiler body (1) and a feed and slag box (7), characterized in that: A furnace opening (2) is provided on one side of the boiler body (1), and a feed slag box (7) is fixedly installed at the furnace opening (2). A driving shaft (20) is symmetrically installed in the inner cavity of the boiler body (1) and the feed slag box (7), and a first mounting roller (6) is fixedly installed on the driving shaft (20). A feeding chain plate (12) is sleeved and installed between two of the first mounting rollers (6), and a plurality of air supply holes (21) are evenly provided on the feeding chain plate (12). A servo motor (17) is connected to one end of the driving shaft (20) on one side. The boiler body ( 1) and the inner walls of the feed and slag discharge box (7) are fixedly installed with fixed plates (22) correspondingly, and a plurality of return springs (23) are installed on the fixed plates (22), and the movable ends of the return springs (23) are connected to the linkage plates (11), the tops of the four linkage plates (11) are fixedly installed with hollow plates (13), and the bottom surfaces of the hollow plates (13) are evenly installed with a plurality of impact pins (14), and the two ends of the two driving shafts (20) are symmetrically fixedly installed with rotating pressure rods (10), and the rotating pressure rods (10) are located directly above the linkage plates (11).

2. A chain-type biomass boiler according to claim 1, characterized in that: A driven shaft (3) is correspondingly mounted on the inner wall of the boiler body (1) and the feed slag box (7), and a second mounting roller (5) is fixedly mounted on the driven shaft (3), a slag discharge chain plate (16) is sleeved between the two second mounting rollers (5), a first gear (18) is fixedly mounted on one end of the driving shaft (20) on one side, and a second gear (19) is fixedly mounted on one end of the driven shaft (3) on one side, and the second gear (19) and the first gear (18) are meshed with each other.

3. The chain-type biomass boiler according to claim 1, characterized in that: The top surface of the feed and slag discharge box (7) is connected to a feed hopper (8) installed thereon, and the top surface of the feed hopper (8) is connected to a feed pipe (9) installed thereon.

4. The chain-type biomass boiler according to claim 1, characterized in that: One side of the inner cavity of the boiler body (1) is connected to an air inlet pipe (15).

5. The chain-type biomass boiler according to claim 1, characterized in that: A slag discharge pipe (4) is installed on one side of the bottom of the inner cavity of the feed and slag discharge box (7).

6. The chain-type biomass boiler according to claim 1, characterized in that: The cross-section of the linkage plate (11) is L-shaped.

7. The chain-type biomass boiler according to claim 1, characterized in that: The diameter of the impact pin (14) is smaller than the diameter of the air supply hole (21).

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