Combustion chamber of straw boiler with oven

Abstract

The utility model relates to the technical field of straw boilers, in particular to a combustion chamber of a straw boiler with an oven. The device comprises a boiler body and an oven fixedly connected to the boiler body, and a material conveying mechanism used for conveying fuel for the boiler is connected to a feeding port of the boiler body; the interior of the boiler body is sequentially divided into a first-stage combustion chamber, a second-stage combustion chamber and a third-stage combustion chamber from top to bottom, the inner side wall of the boiler body is fixedly connected with a first grate used for separating the first-stage combustion chamber from the second-stage combustion chamber, and the inner side wall of the boiler body is rotationally connected with a partition plate used for separating the second-stage combustion chamber from the third-stage combustion chamber. The partition plate is connected with a driving assembly used for driving the partition plate to rotate, and the boiler body communicates with an air blower. By means of the device, straw can be fully combusted, and resources are saved; workers do not need to lift crop straws, so that the physical strength of the workers is saved; the device can feed the boiler at regular time and clean the secondary combustion chamber at regular time.

Description

Technical Field

[0001] This utility model relates to the field of straw boiler technology, specifically to a combustion chamber of a straw boiler with an oven. Background Technology

[0002] A straw boiler is a new type of environmentally friendly boiler that uses crop straw as fuel. Its working principle involves burning straw in the boiler, releasing heat to heat water or generate steam for heating or power supply. The core component of a straw boiler is the combustion chamber. During operation, straw is fed into the combustion chamber and undergoes high-temperature combustion. The combustion process of straw is divided into two distinct stages: the first stage consumes a large amount of oxygen, requiring thorough mixing with air, and generates a large amount of heat, but lasts for a very short time; this is called incandescent combustion. Then, in the second stage, the straw turns dark red, oxygen consumption decreases sharply, and the combustion temperature drops rapidly, but this stage lasts longer and continuously releases heat energy; this is called red-hot combustion. For a straw boiler to maintain incandescent combustion, straw must be continuously added to the combustion chamber. Traditional straw boilers have only one combustion chamber, and crop straw is generally removed before it can complete red-hot combustion, resulting in resource waste.

[0003] Chinese patent 201220340281.1 discloses an "Energy-Saving Boiler with Oven" (publication number CN 202813747U). This device includes a furnace door, grate bars, inlet pipe, outlet pipe, and chimney. An oven water jacket is connected to the furnace body water jacket. Both water jackets have flue gas return ports at their upper parts. An oven is installed within the oven water jacket, and multiple flue gas vents are provided on the bottom plate of the oven water jacket, connecting to the chimney. However, this device has some drawbacks: it only has one combustion chamber, and straw that cannot complete a dark red combustion is removed, resulting in resource waste. Utility Model Content

[0004] To address the problems of the prior art, this utility model provides a combustion chamber for a straw boiler with an oven, which is graded to ensure complete combustion of straw and save resources.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combustion chamber of a straw boiler with an oven, comprising a boiler body and an oven fixedly connected to the boiler body, wherein a material conveying mechanism for conveying fuel to the boiler is connected to the feed inlet of the boiler body; the interior of the boiler body is divided into a primary combustion chamber, a secondary combustion chamber, and a tertiary combustion chamber from top to bottom; a first grate for separating the primary and secondary combustion chambers is fixedly connected to the inner wall of the boiler body; a partition plate for separating the secondary and tertiary combustion chambers is rotatably connected to the inner wall of the boiler body; the partition plate is connected to a drive assembly for driving the partition plate to rotate; and a blower is connected to the boiler body.

[0006] By adopting the above structural design, the combustion chamber of the straw boiler is divided into stages. After the first stage of combustion, the crop straw falls into the second stage combustion chamber through the first grate, so that the straw can be fully burned in the second stage combustion chamber, thus saving resources.

[0007] Preferably, the air outlet of the blower is located between the first grate and the partition plate.

[0008] The above structural design simultaneously blows air into both the primary and secondary combustion chambers, ensuring complete combustion of the straw.

[0009] Preferably, the drive assembly includes a rotating shaft fixedly connected to the partition plate, a drive gear fixedly connected to the rotating shaft, a rack meshing with the drive gear, and an electric push rod fixedly connected to the rack. The rotating shaft is rotatably connected to the boiler body.

[0010] With the above structural design, the partition plate rotates, and the wood ash can fall along the inclined direction of the partition plate.

[0011] Preferably, the partition plate, the rotating shaft, and the drive gear are all provided in two sets, and the drive gears are engaged on both the left and right sides of the rack.

[0012] With the above structural design, plant ash can fall through the gaps in the middle of the partition.

[0013] Preferably, the material conveying mechanism includes a conveying cylinder whose upper end is connected to the boiler body, a drive shaft rotatably connected inside the conveying cylinder, a spiral conveying blade fixedly connected to the drive shaft, and a motor that is drivenly connected to the drive shaft. The lower end of the conveying cylinder is fixedly connected to the inner wall of the storage box, and a feed inlet communicating with the storage box is opened on the side wall of the conveying cylinder.

[0014] With the above structural design, workers do not need to lift the crop straw; this device can put the straw into the boiler.

[0015] Preferably, the electric push rod is electrically connected to a first timer, the motor is electrically connected to a second timer, the first timer and the second timer are fixedly connected to a heat insulation plate, and the heat insulation plate is fixedly connected to the lower end of the boiler body.

[0016] With the above structural design, this device can periodically clean the herbaceous ash on the partition plate and periodically add straw into the boiler body using a timer.

[0017] Preferably, a waste box is provided inside the third-stage combustion chamber, the waste box is located below the partition plate, the waste box passes through the lower end of the boiler body, and a handle is fixedly connected to the outer wall of the waste box.

[0018] With the above structural design, waste bins are used to collect wood ash, and staff only need to clean the waste bins periodically.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1) This device classifies the combustion chamber of the straw boiler. After the first stage of combustion, the crop straw falls into the second stage combustion chamber through the first grate, so that the straw can be fully burned in the second stage combustion chamber, saving resources.

[0021] 2) This device can transport straw from below and put it into the boiler, so that the staff do not have to lift the crop straw, saving the staff's physical strength.

[0022] 3) This device can feed the boiler at regular intervals and clean the secondary combustion chamber at regular intervals. Attached Figure Description

[0023] Figure 1 This is a front view structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the present invention from the left view;

[0025] Figure 3 This is a schematic diagram of the structure of this utility model; Detailed Implementation

[0026] Please see Figure 1 , Figure 2 , Figure 3 This utility model provides a technical solution: a combustion chamber of a straw boiler with an oven, including a boiler body 1 and an oven 2 fixedly connected to the boiler body 1. A material conveying mechanism 3 for conveying fuel to the boiler is connected to the feed inlet of the boiler body 1. The interior of the boiler body 1 is divided into a primary combustion chamber 11, a secondary combustion chamber 12, and a tertiary combustion chamber 13 from top to bottom. A first grate 14 for separating the primary combustion chamber 11 and the secondary combustion chamber 12 is fixedly connected to the inner wall of the boiler body 1. A partition plate 15 for separating the secondary combustion chamber 12 and the tertiary combustion chamber 13 is rotatably connected to the inner wall of the boiler body 1. The partition plate 15 is connected to a drive assembly for driving the partition plate 15 to rotate. A blower 4 is connected to the boiler body 1.

[0027] The air outlet of the blower 4 is located between the first grate 14 and the partition plate 15.

[0028] The drive assembly includes a rotating shaft 151 fixedly connected to the partition plate 15, a drive gear 152 fixedly connected to the rotating shaft 151, a rack 153 meshing with the drive gear 152, and an electric push rod 154 fixedly connected to the rack 153. The rotating shaft 151 is rotatably connected to the boiler body 1, and the rack 153 is slidably connected to the outer wall of the boiler body 1. Two sets of partition plates 15, rotating shaft 151, and drive gear 152 are provided. The rack 153 has teeth on both its left and right sides, and both sides of the rack 153 mesh with the drive gear 152. When the partition plate 15 is in a horizontal state, the two sets of partition plates 15 are on the same horizontal line, and the sides of the partition plates 15 are in contact. When the two sets of partition plates 15 are rotated, both sets of partition plates 15 rotate inwards, creating an opening between the partition plates 15, from which plant ash falls. Because the temperature of the third-stage combustion chamber 13 is relatively low, the electric push rod 154 is fixedly connected to the outer wall of the third-stage combustion chamber.

[0029] The material conveying mechanism 3 includes a conveying cylinder 31 connected to the upper end of the boiler body 1, a drive shaft 32 rotatably connected inside the conveying cylinder 31, a spiral conveying blade 33 fixedly connected to the drive shaft 32, and a motor 34 driven by the drive shaft 32. The upper end of the conveying cylinder 31 has a discharge port, which is connected to the boiler body 1 through a pipe. The lower end of the conveying cylinder 31 is fixedly connected to the inner wall of the storage box 35, and the side wall of the conveying cylinder 31 has a feed port connected to the storage box 35.

[0030] The electric push rod 154 is electrically connected to the first timer 61, and the motor 34 is electrically connected to the second timer 62. The first timer 61 and the second timer 62 are fixedly connected to the heat insulation plate 63, and the heat insulation plate 63 is fixedly connected to the lower end of the boiler body 1.

[0031] The waste box 5 is installed inside the three-stage combustion chamber 13. The waste box 5 is located below the partition plate 15 and passes through the lower end of the boiler body 1. A handle 51 is fixedly connected to the outer wall of the waste box 5.

[0032] Working principle: First, the staff sets the first timer 61 and the second timer 62 to set the feeding cycle of the boiler body 1 and the cleaning cycle of the secondary combustion chamber 12. When the material conveying mechanism 3 is running, the motor 34 drives the drive shaft 32 to rotate, and the spiral conveyor blade 33 rotates to transport the straw from below into the interior of the boiler body 1. After the crop straw undergoes the first stage of combustion in the primary combustion chamber 11, the straw breaks down due to combustion and falls into the secondary combustion chamber 12 through the gap of the first grate 14. The straw is fully burned in the secondary combustion chamber. Next, the electric push rod 154 drives the rack 153 to slide upward, and the rotating shaft 151 rotates in turn. Both sets of partition plates 15 flip inward. After the partition plates 15 rotate, an opening will appear between the partition plates 15, and the wood ash will fall into the waste box 5 through the opening between the partition plates 15.

[0033] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the scope of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this utility model's implementation.

[0034] The present invention has been described above with reference to preferred embodiments, but the scope of protection of the present invention is not limited thereto. All technical solutions falling within the scope of the claims are within the scope of protection of the present invention. Various modifications can be made to the present invention, and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.

Claims

1. A combustion chamber of a straw boiler with an oven, comprising a boiler body (1) and an oven (2) fixedly connected to the boiler body (1), characterized in that: The feeding port of the boiler body (1) is connected with a material conveying mechanism (3) for conveying fuel to the boiler; the inside of the boiler body (1) is sequentially divided into a first combustion chamber (11), a second combustion chamber (12) and a third combustion chamber (13) from top to bottom; the inner side wall of the boiler body (1) is fixedly connected with a first grate (14) for separating the first combustion chamber (11) and the second combustion chamber (12); the inner side wall of the boiler body (1) is rotatably connected with a separation plate (15) for separating the second combustion chamber (12) and the third combustion chamber (13); the separation plate (15) is connected with a driving assembly for driving the rotation of the separation plate (15); and the boiler body (1) is connected with a blower (4).

2. A combustion chamber for a straw boiler with an oven according to claim 1, characterized in that: The air outlet of the blower (4) is arranged between the first grate (14) and the separation plate (15).

3. The combustion chamber of a straw boiler with an oven according to claim 1, characterized in that: The driving assembly comprises a rotating shaft (151) fixedly connected to the separation plate (15), a driving gear (152) fixedly connected to the rotating shaft (151), a rack (153) engaged with the driving gear (152), and an electric push rod (154) fixedly connected to the rack (153); and the rotating shaft (151) is rotatably connected to the boiler body (1).

4. The combustion chamber of a straw boiler with an oven according to claim 3, characterized in that: The separation plate (15), the rotating shaft (151) and the driving gear (152) are provided in two groups; and the left and right sides of the rack (153) are engaged with the driving gears (152).

5. The combustion chamber of a straw boiler with an oven according to claim 3, characterized in that: The material conveying mechanism (3) comprises a conveying cylinder (31) connected to the boiler body (1) at the upper end, a driving shaft (32) rotatably connected inside the conveying cylinder (31), helical conveying blades (33) fixedly connected to the driving shaft (32), and a motor (34) drivingly connected to the driving shaft (32); the lower end of the conveying cylinder (31) is fixedly connected to the inner wall of a storage tank (35); and a feeding port is formed in the side wall of the conveying cylinder (31) and is connected to the storage tank (35).

6. A combustion chamber for a straw boiler with an oven according to claim 5, characterized in that: The electric push rod (154) is electrically connected to a first timer (61), the motor (34) is electrically connected to a second timer (62), the first timer (61) and the second timer (62) are fixedly connected to a heat insulation plate (63), and the heat insulation plate (63) is fixedly connected to the lower end of the boiler body (1).

7. A combustion chamber for a straw boiler with an oven according to any of claims 1 to 6, characterized in that: A waste box (5) is arranged inside the third combustion chamber (13); the waste box (5) is arranged below the separation plate (15); the waste box (5) penetrates the lower end of the boiler body (1); and a handle (51) is fixedly connected to the outer side wall of the waste box (5).

Images