Wood chip pre-combustion chamber combustor
By designing a wood chip pre-combustion chamber burner with feeding, crushing, and screening mechanisms, the problems of incomplete combustion and unstable feeding caused by excessively large wood chip particles have been solved, achieving stable input and complete combustion of wood chips, and improving combustion efficiency and feeding efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DANJIANGKOU XINAO ENERGY DEVELOPMENT CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-17
AI Technical Summary
The existing wood chip pre-combustion chamber has problems such as incomplete combustion and unstable feeding due to excessively large wood chips, which affects the input efficiency.
A wood chip pre-combustion chamber burner was designed, which includes a feeding mechanism, a crushing mechanism, and a screening mechanism. The feeding mechanism enables continuous feeding, the screening mechanism intercepts large particles, and the crushing mechanism crushes large particles, ensuring stable input and complete combustion of wood chips.
It improves the completeness of wood chip combustion and the stability of feeding, reduces the risk of clogging, and improves combustion efficiency.
Smart Images

Figure CN224135853U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of wood chip pre-combustion chamber burners, and is a wood chip pre-combustion chamber burner. Background Technology
[0002] Wood chips refer to the powder left over from wood processing. They are mainly used as fuel and lightweight filler, or to be compounded into engineered wood products such as MDF. A wood chip pre-combustion chamber burner is a combustion device that uses wood chips and other biomass as fuel. Its core is to use the pre-combustion chamber structure to achieve stable ignition and efficient combustion of fuel. It has advantages such as energy saving, environmental protection, and low operating costs, and is widely used in industrial kilns, boilers, drying equipment and other fields.
[0003] In the current sawdust pre-combustion chamber, some sawdust particles are too large when fed into the chamber. These large particles can easily lead to incomplete combustion. At the same time, the particles can easily get stuck in the inlet pipe during feeding, affecting the stable input of sawdust and reducing the input efficiency. Utility Model Content
[0004] This invention addresses the technical problem that existing wood chip pre-combustion chambers contain excessively large wood chips, which can lead to incomplete combustion. Furthermore, these large particles can clog the feed pipes, affecting stable wood chip input and reducing efficiency. Therefore, this invention provides a wood chip pre-combustion chamber burner.
[0005] This utility model solves the above-mentioned technical problems through the following technical solutions:
[0006] This utility model provides a wood chip pre-combustion chamber burner, the wood chip pre-combustion chamber burner comprising:
[0007] The processing shell has an input pipe fixedly connected to its bottom side, and a pre-combustion chamber is installed at the end of the input pipe. The pre-combustion chamber is connected to the combustion chamber of the burner.
[0008] A feeding mechanism is installed on the side surface of the processing shell, and a feeding hopper is installed at the top of the feeding mechanism;
[0009] The crushing mechanism is installed in the pre-combustion chamber, and a screening mechanism installed in the processing shell is provided on the bottom side of the crushing mechanism. The screening mechanism is used to intercept large wood chips.
[0010] Furthermore, the feeding mechanism includes a feeding pipe, a servo motor, a rotating shaft, and helical blades. The feeding pipe is fixedly connected to the side surface of the processing shell, and a feeding hopper is fixedly connected to the top of the feeding pipe. A servo motor is fixedly mounted on the side surface of the feeding pipe via a mounting bracket. The output end of the servo motor is connected to a rotating shaft, and helical blades are mounted on the surface of the rotating shaft.
[0011] Furthermore, a blower pipe is fixedly installed on the top side of the processing shell, and a partition is fixedly connected to the inner wall of the top side of the processing shell.
[0012] Furthermore, the crushing mechanism includes a crushing motor, a crushing shaft, and crushing blades. The crushing motor is fixedly installed on the side surface of the processing shell, the output end of the crushing motor is connected to the crushing shaft, and the crushing blades are fixedly installed on the side surface of the crushing shaft.
[0013] Furthermore, the number of the crushing blades is several, and the several crushing blades are evenly distributed in a ring on the side surface of the crushing shaft.
[0014] Furthermore, the screening mechanism includes a vibrating motor, a vibrating head, a sliding plate, a filter screen, and a spring. The vibrating motor is fixedly installed on the inner wall of the processing shell. The output end of the vibrating motor is connected to the vibrating head. A sliding plate is provided on the top side of the vibrating head. A filter screen is fixedly connected to the side surface of the sliding plate. A spring is installed on the bottom side of the sliding plate.
[0015] Furthermore, there are two slides, a filter screen is fixedly connected between the two slides, and a protective shell is fixedly connected to the bottom side of the slide.
[0016] Furthermore, a fixing seat is fixedly connected to the bottom end of the spring, and the fixing seat is fixedly connected to the inner wall of the processing shell.
[0017] Furthermore, a sliding post extends through the inner cavity of the spring, with the bottom end of the sliding post fixedly connected to the top side of the fixed base, the top end of the sliding post extending through the surface of the sliding plate, and a limit plate fixedly connected to the top end of the sliding post.
[0018] Furthermore, the filter screen has an arc-shaped cross-section, and its two ends are slidably connected to the inner wall of the processing shell.
[0019] Furthermore, based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.
[0020] The positive and progressive effects of this utility model are as follows:
[0021] The aforementioned wood chip pre-combustion chamber burner, through the action of a feeding mechanism, effectively feeds wood chips into the processing chamber, facilitating continuous feeding and conveying to prevent material stagnation in the conveying path and reduce the risk of blockage. A vibrating motor drives a vibrating head to vibrate, which in turn strikes a sliding plate. Combined with the action of a spring, this causes the sliding plate to vibrate back and forth, driving a vibrating filter screen for screening. The vibrating filter screen facilitates filtration, effectively filtering out small wood chip particles while trapping larger particles inside, allowing for crushing by the crushing mechanism. This significantly improves the crushing effect, facilitating the pulverization of wood chips and enhancing the pre-combustion effect and the completeness of combustion within the pre-combustion chamber. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application.
[0023] Figure 1 This is a three-dimensional structural diagram of the wood chip pre-combustion chamber burner of this utility model.
[0024] Figure 2 This is a front cross-sectional view of the wood chip pre-combustion chamber burner of this utility model.
[0025] Figure 3 This utility model relates to a wood chip pre-combustion chamber burner. Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0026] Explanation of reference numerals in the attached figures
[0027] 1. Processing shell; 2. Feed pipe; 3. Pre-combustion chamber; 4. Air blowing pipe; 5. Baffle plate; 6. Crushing mechanism; 61. Crushing motor; 62. Crushing shaft; 63. Crushing blade; 7. Feed hopper; 8. Feeding mechanism; 81. Feeding pipe; 82. Servo motor; 83. Rotating shaft; 84. Spiral blade; 9. Screening mechanism; 91. Slide plate; 92. Fixed base; 93. Protective shell; 94. Vibrating motor; 95. Spring; 96. Sliding column; 97. Limiting plate; 98. Filter screen; 99. Vibrating head. Detailed Implementation
[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0030] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.
[0031] Furthermore, some of the aforementioned terms, besides indicating location or positional relationships, may also have other meanings. For example, the term "above" may, in certain circumstances, indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0032] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.
[0034] like Figure 1-3 As shown, the wood chip pre-combustion chamber burner includes:
[0035] The processing shell 1 has an input pipe 2 fixedly connected to its bottom side, and a pre-combustion chamber 3 is installed at the end of the input pipe 2. The pre-combustion chamber 3 is connected to the combustion chamber of the burner.
[0036] Feeding mechanism 8 is installed on the side surface of processing shell 1, and a feeding hopper 7 is installed at the top of feeding mechanism 8;
[0037] The crushing mechanism 6 is installed in the pre-combustion chamber 3. A screening mechanism 9 is installed on the bottom side of the crushing mechanism 6 and installed in the processing shell 1. The screening mechanism 9 is used to intercept large wood chips.
[0038] Under the action of the feeding mechanism 8, the wood chips are effectively fed into the processing shell 1, which facilitates continuous feeding and conveying to avoid material stagnation in the conveying path and reduce the risk of blockage. The vibrating head 99 is driven by the vibrating motor 94 to vibrate. The vibrating head 99 strikes the slide plate 91 under the vibration of the vibrating motor 94. With the action of the spring 95, the slide plate 91 vibrates back and forth. The slide plate 91 drives the filter screen 98 to vibrate and screen. The vibrating filter screen 98 facilitates filtration and effectively filters out small wood chips. Large wood chips are intercepted in the filter screen 98, which is convenient for the crushing mechanism 6 to crush them. This effectively improves the crushing effect, facilitates the crushing of wood chips, improves the pre-combustion effect of the wood chips, and improves the completeness of the subsequent combustion of wood chips in the pre-combustion chamber 3.
[0039] The feeding mechanism 8 includes a feeding pipe 81, a servo motor 82, a rotating shaft 83, and a spiral blade 84. The feeding pipe 81 is fixedly connected to the side surface of the processing shell 1. The top end of the feeding pipe 81 is fixedly connected to the feed hopper 7. The servo motor 82 is fixedly mounted on the side surface of the feeding pipe 81 by a mounting bracket. The output end of the servo motor 82 is connected to the rotating shaft 83. The spiral blade 84 is mounted on the surface of the rotating shaft 83.
[0040] The wood chips in the feed hopper 7 enter the feeding pipe 81. The servo motor 82 is started, and the servo motor 82 drives the rotating shaft 83 to rotate. The rotating shaft 83 drives the spiral blades 84 with threaded sleeves on the surface to rotate. The spiral blades 84 push the material and effectively send the wood chips into the processing shell 1. This facilitates continuous feeding and avoids material stagnation in the conveying path, reducing the risk of blockage and making it convenient to use.
[0041] A blower pipe 4 is fixedly installed on the top side of the processing shell 1, and a partition 5 is fixedly connected to the inner wall of the top side of the processing shell 1.
[0042] The crushing mechanism 6 includes a crushing motor 61, a crushing shaft 62, and a crushing blade 63. The crushing motor 61 is fixedly installed on the side surface of the processing shell 1. The output end of the crushing motor 61 is connected to the crushing shaft 62. The crushing blade 63 is fixedly installed on the side surface of the crushing shaft 62.
[0043] Start the crushing motor 61, which drives the crushing shaft 62 to rotate. The crushing shaft 62 drives the crushing blade 63, which is fixedly connected to the side surface, to rotate. The crushing blade 63 crushes large wood chips, making it convenient to use.
[0044] The number of the crushing blades 63 is several, and the several crushing blades 63 are evenly distributed in a ring on the side surface of the crushing shaft 62.
[0045] The screening mechanism 9 includes a vibration motor 94, a vibrating head 99, a sliding plate 91, a filter screen 98, and a spring 95. The vibration motor 94 is fixedly installed on the inner wall of the processing shell 1. The output end of the vibration motor 94 is connected to the vibrating head 99. The sliding plate 91 is provided on the top side of the vibrating head 99. The filter screen 98 is fixedly connected to the side surface of the sliding plate 91. The spring 95 is installed on the bottom side of the sliding plate 91.
[0046] The vibrating head 99 is driven by the vibrating motor 94 to vibrate. The vibrating head 99 strikes the slide plate 91 under the vibration of the vibrating motor 94. With the action of the spring 95, the slide plate 91 vibrates back and forth. The slide plate 91 drives the filter screen 98 to vibrate and screen. The vibrating filter screen 98 facilitates filtration and effectively filters out small wood chips. Large wood chips are intercepted in the filter screen 98, which is convenient for the crushing mechanism 6 to crush them. This effectively improves the crushing effect, facilitates the crushing of wood chips, improves the pre-combustion effect of the wood chips, and improves the completeness of the subsequent combustion of wood chips in the pre-combustion chamber 3.
[0047] There are two slide plates 91, and a filter screen 98 is fixedly connected between the two slide plates 91. A protective shell 93 is fixedly connected to the bottom side of each slide plate 91.
[0048] The bottom end of the spring 95 is fixedly connected to a fixing seat 92, and the fixing seat 92 is fixedly connected to the inner wall of the processing shell 1.
[0049] The inner cavity of the spring 95 has a sliding post 96 passing through it. The bottom end of the sliding post 96 is fixedly connected to the top side of the fixed base 92, and the top end of the sliding post 96 passes through the surface of the slide plate 91. A limit plate 97 is fixedly connected to the top end of the sliding post 96.
[0050] The filter screen 98 has a circular arc-shaped cross-section, and the two ends of the filter screen 98 are slidably connected to the inner wall of the processing shell 1.
[0051] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the software and methods.
[0052] This utility model is not limited to the above-described embodiments. Any changes in its shape or structure fall within the protection scope of this utility model. The protection scope of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the protection scope of this utility model.
Claims
1. A wood-chip pre-chamber burner, characterized by, The wood chip pre-combustion chamber burner includes: The processing shell (1) has an input pipe (2) fixedly connected to its bottom side, and a pre-combustion chamber (3) is installed at the end of the input pipe (2), which is connected to the combustion chamber of the burner. Feeding mechanism (8), the feeding mechanism (8) is installed on the side surface of the processing shell (1), and a feeding hopper (7) is installed at the top of the feeding mechanism (8). The crushing mechanism (6) is installed in the pre-combustion chamber (3). The bottom side of the crushing mechanism (6) is provided with a screening mechanism (9) installed in the processing shell (1). The screening mechanism (9) is used to intercept large wood chips.
2. The wood chip prechamber burner of claim 1, wherein: The feeding mechanism (8) includes a feeding pipe (81), a servo motor (82), a rotating shaft (83), and a spiral blade (84). The feeding pipe (81) is fixedly connected to the side surface of the processing shell (1). The top end of the feeding pipe (81) is fixedly connected to a feed hopper (7). The side surface of the feeding pipe (81) is fixedly mounted with a servo motor (82) by a mounting bracket. The output end of the servo motor (82) is connected to the rotating shaft (83). The surface of the rotating shaft (83) is mounted with a spiral blade (84).
3. The wood chip prechamber burner of claim 2, wherein: A blower pipe (4) is fixedly installed on the top side of the processing shell (1), and a partition plate (5) is fixedly connected to the inner wall of the top side of the processing shell (1).
4. The wood chip prechamber burner of claim 1, wherein: The crushing mechanism (6) includes a crushing motor (61), a crushing shaft (62) and a crushing blade (63). The crushing motor (61) is fixedly installed on the side surface of the processing shell (1). The output end of the crushing motor (61) is connected to the crushing shaft (62). The crushing blade (63) is fixedly installed on the side surface of the crushing shaft (62).
5. The wood chip pre-combustion chamber burner as described in claim 4, characterized in that: The number of the crushing blades (63) is several, and the several crushing blades (63) are evenly distributed in a ring on the side surface of the crushing shaft (62).
6. The wood chip prechamber burner of claim 1, wherein: The screening mechanism (9) includes a vibration motor (94), a vibrating head (99), a sliding plate (91), a filter screen (98), and a spring (95). The vibration motor (94) is fixedly installed on the inner wall of the processing shell (1). The output end of the vibration motor (94) is connected to the vibrating head (99). A sliding plate (91) is provided on the top side of the vibrating head (99). A filter screen (98) is fixedly connected to the side surface of the sliding plate (91). A spring (95) is installed on the bottom side of the sliding plate (91).
7. The wood chip prechamber burner of claim 6, wherein: There are two slide plates (91), and a filter screen (98) is fixedly connected between the two slide plates (91). A protective shell (93) is fixedly connected to the bottom side of the slide plate (91).
8. The wood chip prechamber burner of claim 6, wherein: The bottom end of the spring (95) is fixedly connected to a fixing seat (92), and the fixing seat (92) is fixedly connected to the inner wall of the processing shell (1).
9. The wood chip prechamber burner of claim 6, wherein: The inner cavity of the spring (95) has a sliding post (96) passing through it. The bottom end of the sliding post (96) is fixedly connected to the top side of the fixed seat (92). The top end of the sliding post (96) passes through the surface of the slide plate (91). The top end of the sliding post (96) is fixedly connected to a limit plate (97).
10. The wood chip pre-combustion chamber burner as described in claim 6, characterized in that: The filter screen (98) has a circular arc-shaped cross-section, and the two ends of the filter screen (98) are slidably connected to the inner wall of the processing shell (1).