Straw bundle direct-fired hot air boiler

Abstract

The utility model discloses a straw whole bundle direct-fired hot air boiler which comprises a hot air boiler body, and the upper end of a bag pushing device structural frame arranged at the lower end of one side of the hot air boiler body is connected with the middle of one side of a correspondingly-arranged bag pushing device through symmetrically-arranged bag pushing hydraulic oil cylinders. A feeding support arranged above a chain grate stoker accessory arranged at the lower end of the other side of the hot air boiler body is connected with the corresponding kick-out devices through a plurality of kick-out device hydraulic oil cylinders arranged at equal intervals along the inner side of the upper end of a beam. According to the straw whole-bundle direct-combustion hot air boiler, a bag pushing hydraulic oil cylinder and a bag pushing device are used in cooperation, a whole bundle of straw is pushed and stacked on a feeding support along beam for combustion, then a kick-out device hydraulic oil cylinder drives a kick-out device to move, and a high-pressure air blower conveys airflow into the kick-out device through a secondary air pipe; the bottom of the whole bundle of straw is stirred, meanwhile, ventilation is achieved, combustion is accelerated, dust is controlled, and the use practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to renewable energy sources directly burning whole straw bales, in particular to a hot air boiler directly burning whole straw bales. Background Art

[0002] Straw whole round bale direct-fired hot air boilers are mostly powered or manually assisted in breaking the bales, or statically stacked in the furnace. The advantages are that the powerful breaking of the bales can speed up the combustion efficiency, and the static stacking has better combustion stability. The disadvantages are also quite obvious. The powerful breaking of the bales produces a lot of dust, the combustion is not complete and is easy to be blocked. The static stacking combustion requires a larger combustion volume, the combustion speed is slow, and the use time is long, and the use effect is not ideal. In view of the above problems, it is necessary to improve the existing equipment. Utility Model Content

[0003] The utility model aims to provide a whole-bale straw direct-fired hot air boiler to solve the problems of the existing whole-bale straw direct-fired hot air boiler in the above-mentioned background technology, such as large dust caused by strong bag breaking, incomplete combustion and easy clogging, and the static stacking combustion requires increasing the combustion volume, slow combustion speed and long use time, and unsatisfactory use effect.

[0004] To achieve the above purpose, the utility model provides the following technical solutions: a straw bale direct-fired hot air boiler, comprising a hot air boiler body,

[0005] A package pusher structure frame is provided at the lower end of the hot blast boiler body near the boiler fuel inlet, and the upper end of the package pusher structure frame is connected to the middle of the corresponding package pusher side through the output end of the symmetrically arranged package pushing hydraulic cylinder, and at the same time, a high-pressure blower is installed in the middle of the lower end of the package pusher structure frame, and a chain grate accessory is provided at the lower end of the other side of the hot blast boiler body, and a feeding bracket beam is provided above the chain grate accessory, and at the same time, the inner side of the upper end of the feeding bracket beam is connected to the corresponding feeder through the output ends of multiple equidistantly arranged feeder hydraulic cylinders, and multiple ignition temperature furnaces are equidistantly arranged on one side of the upper end of the feeding bracket beam, and a hot blast furnace wall is provided on the side of the upper end of the feeding bracket beam, and a hot blast furnace body cover is provided at the upper end between the hot blast furnace walls, and a hot blast furnace arch and combined accessories are provided between the hot blast furnace walls and below the hot blast furnace body cover.

[0006] Preferably, a cooling water tank is provided at the top of the upper end of the hot blast boiler body to ensure that the boiler fuel inlet maintains a stable structure without deformation in the high temperature area, and a high-pressure cold air duct is provided inside the cooling water tank, and both sides of the high-pressure cold air duct are respectively communicated with one end of the corresponding flamethrower air inlet pipe, and the other ends of the two flamethrower air inlet pipes are respectively connected to the two sides of the flamethrower, and the flamethrower is arranged between the upper cover of the hot blast furnace body and the hot blast furnace arch and the combined accessories;

[0007] By adopting the above technical solution, it is convenient to increase the temperature of the secondary air at the crater, so that the particles floating in the post-combustion gas can be fully burned, thereby improving the combustion effect.

[0008] Preferably, the bag pusher forms a movable structure with the bag pusher structure frame through a bag pusher hydraulic cylinder;

[0009] By adopting the above technical solution, it is convenient to push the whole bale of straw, thereby facilitating the loading of the material.

[0010] Preferably, the air outlet of the high-pressure blower is connected to one end of the secondary air duct through a connector, and the other end of the secondary air duct is connected to the air outlets opened on the corresponding material dispensers through a plurality of connecting pipes;

[0011] By adopting the above technical solution, the combustion effect can be improved and incomplete combustion can be avoided.

[0012] Preferably, the material tapper forms a rotating structure through a hydraulic cylinder of the material tapper and a beam of the feeding support;

[0013] By adopting the above technical solution, it is convenient to move the bottom of the whole bundle of straw, ventilate the inside of the straw, and improve the combustion efficiency.

[0014] Preferably, the upper cover of the hot blast stove body, the hot blast stove arch and the combined accessories are all fan-shaped structures.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the straw bale direct-fired hot air boiler

[0016] In order to solve the problems of existing straw bale direct-fired hot air boilers, such as large dust caused by strong bale breaking, incomplete combustion and easy clogging, static stacking combustion requiring increased combustion volume, slow combustion speed and long time, and unsatisfactory use effect, the present application uses a bale pushing hydraulic cylinder and a bale pusher to push the whole bale of straw and stack it on the feeding support beam for combustion, and then the hydraulic cylinder of the feeder drives the feeder to move and the high-pressure blower delivers the airflow to the feeder through the secondary air duct, so that the bottom of the whole bale of straw is moved while ventilation is accelerated to accelerate combustion, thereby controlling the generation of dust and improving the practicality of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0018] Figure 2 This is a side view of the structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model from top view;

[0020] Figure 4It is a schematic diagram of the side view structure of the furnace wall of the hot blast furnace of the utility model.

[0021] In the figure: 1. Package pusher structure frame; 2. Package pusher; 3. High-pressure blower; 4. Secondary air duct; 5. Cooling water tank; 6. Flame port air inlet pipe; 7. Chain grate accessories; 8. Feeding bracket beam; 9. Feeder; 10. Flame port; 11. Feeder hydraulic cylinder; 12. Package pusher hydraulic cylinder; 13. Hot blast furnace body upper cover; 14. Hot blast furnace wall; 15. Hot blast furnace arch and combined accessories. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a straw bale direct-fired hot air boiler, according to Figure 1 and Figure 2 As shown, a bag pusher structural frame 1 is provided at the lower end of the hot air boiler body near the boiler fuel inlet, and the upper end of the bag pusher structural frame 1 is connected to the middle of one side of the corresponding bag pusher 2 through the output end of the symmetrically arranged bag pusher hydraulic cylinder 12. The bag pusher 2 forms a moving structure with the bag pusher structural frame 1 through the bag pusher hydraulic cylinder 12. The bag pusher 2 is pushed to move by the bag pusher hydraulic cylinder 12, so that the whole bundle of straw is transported to the upper end of the feeding support beam 8 through the boiler fuel inlet. At the same time, a high-pressure blower 3 is installed in the middle of the lower end of the bag pusher structural frame 1. The air outlet of the high-pressure blower 3 is connected to one end of the secondary air duct 4 through a connecting piece, and the other end of the secondary air duct 4 is respectively communicated with the air outlet opened on the correspondingly arranged feeder 9 through a plurality of connecting pipes, so that the high-pressure cold air can cool the feeder 9 and at the same time help the combustion of the whole bundle of straw, thereby improving the practicality of use.

[0024] To further illustrate, a cooling water tank 5 is provided at the top of the upper end of the hot air boiler body, which is used to ensure that the boiler fuel inlet maintains a stable structure and does not deform in the high-temperature area, and a high-pressure cold air duct is provided inside the cooling water tank 5. At the same time, both sides of the high-pressure cold air duct are respectively communicated with one end of the corresponding flamethrower air inlet pipe 6, and the other ends of the two flamethrower air inlet pipes 6 are respectively connected to both sides of the flamethrower 10, so that the flamethrower air inlet pipe 6 is communicated with the high-pressure cold air duct arranged in the cooling water tank 5 at the boiler fuel inlet, which can reduce the temperature of the cooling water tank 5 and increase the temperature of the secondary air of the flamethrower 10. The flamethrower 10 is arranged between the upper cover 13 of the hot air furnace body and the hot air furnace arch and the combined accessories 15, which is convenient for re-combustion of floating objects in the flue gas generated by combustion and improves the combustion effect.

[0025] according to Figure 1 and Figure 2 As shown, a chain grate accessory 7 is provided at the lower end of the other side of the hot air boiler body, and a feed support beam 8 is provided above the chain grate accessory 7. At the same time, the inner side of the upper end of the feed support beam 8 is connected to the correspondingly arranged feeder 9 through the output ends of multiple equidistantly arranged feeder hydraulic cylinders 11. The feeder 9 forms a rotating structure with the feeder support beam 8 through the feeder hydraulic cylinder 11. The feeder hydraulic cylinder 11 drives the feeder 9 to rotate, which is convenient for shedding the burned straw and speeds up the feeding. The straw on the bracket beam 8 burns, and the straw is cracked in a high temperature environment to release a large amount of volatile phenol. A plurality of ignition temperature furnaces are equidistantly arranged on the upper end of the feeding bracket beam 8, and a hot blast furnace wall 14 is arranged on the side of the upper end of the feeding bracket beam 8. At the same time, a hot blast furnace body cover 13 is arranged on the upper end between the hot blast furnace walls 14, and a hot blast furnace arch and combined accessories 15 are arranged between the hot blast furnace walls 14 and below the hot blast furnace body cover 13. The hot blast furnace body cover 13, the hot blast furnace arch and the combined accessories 15 are all fan-shaped structures.

[0026] When in use, a whole bundle of straw fuel is placed on one side of the upper end of the pusher structure frame 1, so that the whole bundle of straw is located between the pusher 2 and the boiler fuel inlet, and then the pusher hydraulic cylinder 12 is started, and the pusher 2 is pushed to move on the pusher structure frame 1 by the pusher hydraulic cylinder 12, and the bundle of straw fuel is transported to the upper end of the feed support beam 8 through the boiler fuel inlet, and then the pusher hydraulic cylinder 12 pulls the pusher 2 to move in the opposite direction on the pusher structure frame 1, returns to its original position, and then the whole bundle of straw fuel is placed between the pusher 2 and the boiler fuel inlet, when the whole bundle of straw fuel is at the upper end of the feed support beam 8, the ignition temperature furnace is started to operate, and the whole bundle of straw fuel is ignited and burned, and when the whole bundle of straw fuel in front is burned out, the pusher hydraulic cylinder 12 is repeated The pusher 2 is pushed to move on the pusher structure frame 1, and the straw fuel bundle is transported to the upper end of the feeding bracket beam 8 through the boiler fuel inlet to replenish the whole straw fuel bundle. At the same time, the hydraulic cylinder 11 of the pusher drives the pusher 9 to rotate, and the bottom of the whole straw fuel bundle is pushed, and the fallen fuel is burned on the chain grate accessory 7. At the same time, the high-pressure blower 3 is started to transport the high-pressure airflow to the pusher 9 through the secondary air duct 4, so as to cool the pusher 9 and assist the combustion of the whole straw fuel bundle. The smoke generated after combustion is transported to the ignition nozzle 10 through the ignition nozzle air inlet pipe 6, so that the ignition nozzle 10 is mixed with the air for the second time and fully burned, thereby increasing the flame temperature, fully burning the floating objects in the smoke, and improving the combustion effect.

[0027] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A straw bale direct-fired hot air boiler, comprising a hot air boiler body, characterized in that: A package pusher structure frame (1) is arranged at the lower end of the hot blast boiler body near the boiler fuel inlet, and the upper end of the package pusher structure frame (1) is connected to the middle of one side of a corresponding package pusher (2) through the output end of a symmetrically arranged package pusher hydraulic cylinder (12), and a high-pressure blower (3) is installed in the middle of the lower end of the package pusher structure frame (1). A chain grate accessory (7) is arranged at the lower end of the other side of the hot blast boiler body, and a feed support beam (8) is arranged above the chain grate accessory (7). At the same time, the feed support beam (8) ) is connected to a correspondingly arranged feeder (9) through the output ends of a plurality of equally spaced feeder hydraulic cylinders (11), a plurality of ignition temperature furnaces are equally spaced on one side of the upper end of the feeder support beam (8), and a hot blast furnace wall (14) is arranged on the side of the upper end of the feeder support beam (8), and a hot blast furnace body upper cover (13) is arranged at the upper end between the hot blast furnace walls (14), and a hot blast furnace arch and combined accessories (15) are arranged between the hot blast furnace walls (14) and below the hot blast furnace body upper cover (13).

2. The whole-bale straw direct-fired hot air boiler according to claim 1, characterized in that: A cooling water tank (5) is arranged at the top of the upper end of the hot blast boiler body, which is used to ensure that the boiler fuel inlet maintains a stable structure and does not deform in the high temperature area, and a high-pressure cold air pipe is arranged inside the cooling water tank (5), and at the same time, both sides of the high-pressure cold air pipe are respectively connected to one end of the corresponding flame vent air inlet pipe (6), and the other ends of the two flame vent air inlet pipes (6) are respectively connected to both sides of the flame vent (10), and the flame vent (10) is arranged between the upper cover (13) of the hot blast furnace body and the hot blast furnace arch and the combined accessories (15).

3. The whole-bale straw direct-fired hot air boiler according to claim 1, characterized in that: The bag pusher (2) forms a movable structure through a bag pusher hydraulic cylinder (12) and a bag pusher structural frame (1).

4. The whole-bale straw direct-fired hot air boiler according to claim 1, characterized in that: The air outlet of the high-pressure blower (3) is connected to one end of the secondary air duct (4) via a connecting piece, and the other end of the secondary air duct (4) is communicated with air outlets opened on correspondingly arranged material dispensers (9) via a plurality of connecting pipes.

5. The whole-bale straw direct-fired hot air boiler according to claim 1, characterized in that: The material tapper (9) forms a rotating structure with the material feeder support beam (8) through the material tapper hydraulic cylinder (11).

6. The whole-bale straw direct-fired hot air boiler according to claim 1, characterized in that: The hot blast stove body upper cover (13), the hot blast stove arch and the combined accessories (15) are all fan-shaped structures.

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