Feeder and particle furnace

Abstract

The utility model belongs to the technical field of combustion devices, and particularly discloses a feeder and a particle furnace. The feeding machine comprises a feeding pipe, a feeding screw and an observation window assembly. A feeding cavity is formed in the feeding pipe, a feeding inlet, a feeding outlet and an observation notch are formed in the feeding pipe, and the feeding inlet, the feeding outlet and the observation notch are all communicated with the feeding cavity; the feeding screw rod is rotatably arranged in the feeding cavity around the axis of the feeding screw rod; the observation window assembly comprises an installation frame and a transparent observation piece arranged on the installation frame, the installation frame is installed on the feeding pipe, and the transparent observation piece covers the observation notch. Due to the arrangement of the observation window assembly, a user can observe the material conveying condition in the feeding cavity through the transparent observation piece and the observation notch, and if the user observes material blocking or material shortage, the user can control the feeding screw rod to stop rotating in time to deal with the material blocking or material shortage condition.

Description

Technical Field

[0001] This utility model relates to the field of combustion device technology, and in particular to a feeder and pellet furnace. Background Technology

[0002] A screw conveyor is a machine that uses a motor to drive a screw feed rod to rotate and push materials to achieve the purpose of conveying.

[0003] Screw conveyors can transport powdery, granular, and small lump materials horizontally, inclined, or vertically. They have advantages such as simple structure, small cross-sectional area, good sealing, convenient operation, and easy maintenance. Based on these advantages, screw conveyors are used in some pellet mills to ensure that materials are continuously and evenly conveyed into the furnace.

[0004] However, during the feeding process of the screw feeder, users cannot intuitively obtain the feeding status inside the feeder. When material jamming or material shortage occurs, users cannot quickly deal with the material jamming or material shortage. Utility Model Content

[0005] One of the technical problems solved by this utility model is to provide a feeding machine that can effectively solve the technical problem in the prior art that users cannot intuitively obtain the feeding status inside the feeding machine and cannot quickly deal with material jams or material shortages.

[0006] The second technical problem solved by this utility model is to provide a pellet furnace that can effectively solve the technical problem in the prior art that users cannot intuitively obtain the feeding status inside the feeder of the pellet furnace, and cannot quickly deal with material jams or material shortages.

[0007] The first technical problem mentioned above is solved by the following technical solution:

[0008] The feeder includes:

[0009] A feeding tube is provided with a feeding chamber inside the feeding tube. The feeding tube is provided with a feeding inlet, a feeding outlet and an observation notch. The feeding inlet, the feeding outlet and the observation notch are all connected to the feeding chamber.

[0010] The feeding screw is rotatably mounted in the feeding chamber around its own axis;

[0011] An observation window assembly includes a mounting bracket and a transparent observation element disposed on the mounting bracket, the mounting bracket being mounted on the feed tube, and the transparent observation element covering the observation notch.

[0012] The feeder described in this utility model has the following advantages compared with the prior art:

[0013] When the feeder is in operation, material is fed into the feeding chamber through the feeding inlet. The feeding screw rotates around itself, thus conveying the material in the feeding chamber to the feeding outlet. Simultaneously, thanks to the observation window assembly, the user can observe the material conveying situation in the feeding chamber through the transparent observation piece and observation notch. If material jamming or insufficient material is observed, the user can promptly control the feeding screw to stop rotating and address the issue.

[0014] The mounting bracket design eliminates the need for the transparent observation piece to be directly mounted on the feed pipe, thus avoiding the need to integrally machine a structure for mounting the transparent observation piece onto the feed pipe and reducing the processing difficulty of the feed pipe. The transparent observation piece covers the observation opening, facilitating user observation of the material conveying within the feed chamber and preventing material leakage from the observation opening.

[0015] In one embodiment, the feeding tube is provided with two observation notches, which are arranged opposite to each other, and the mounting bracket is provided with two transparent observation elements arranged at relative intervals, which correspond one-to-one with the observation notches.

[0016] In one embodiment, the mounting bracket includes:

[0017] The mounting bracket body is installed on the feeding pipe;

[0018] A transparent observation component fixing frame is installed on the mounting bracket body, and the transparent observation component is installed on the transparent observation component fixing frame.

[0019] In one embodiment, the transparent observation element fixing frame is provided with a mounting groove that mates with the transparent observation element, and the mounting groove is arranged along the circumference of the transparent observation element.

[0020] In one embodiment, the mounting bracket is snapped into the feed tube.

[0021] In one embodiment, the mounting bracket includes:

[0022] Connecting part;

[0023] The first circumferential part is disposed on one side of the connecting part and is attached to the outer side of the feeding tube. The transparent observation element is disposed on the first circumferential part.

[0024] The second circumferential portion is disposed on the other side of the connecting portion and is attached to the outer surface of the feeding tube. The transparent observation element is disposed on the second circumferential portion. The first circumferential portion and the second circumferential portion are clamped to the feeding tube. The feeding tube is provided with observation notches that correspond one-to-one with the transparent observation elements.

[0025] In one embodiment, the feeding tube is provided with a plurality of observation notches, and the mounting bracket is provided with a plurality of transparent observation elements, the transparent observation elements being provided in a one-to-one correspondence with the observation notches.

[0026] In one embodiment, the feeder further includes an air duct assembly that abuts against the feed pipe, and the mounting bracket is circumferentially engaged with the feed pipe and connected to the air duct assembly.

[0027] In one embodiment, the mounting bracket includes a locking flange that is locked to the duct assembly via a locking attachment.

[0028] The second technical problem mentioned above is solved by the following technical solution:

[0029] Pellet furnace, including:

[0030] Furnace body, wherein a combustion chamber is provided inside the furnace body;

[0031] In the aforementioned feeder, the feed outlet of the feeder is connected to the combustion chamber, and the observation window assembly is located outside the combustion chamber.

[0032] The pellet furnace described in this utility model has the following advantages compared with the prior art:

[0033] The pellet mill includes the aforementioned feeder. During operation, material is fed into the feeding chamber from the feeder's inlet. The feeding screw rotates around itself, conveying the material from the feeding chamber to the feeding outlet. Simultaneously, thanks to the observation window assembly, the user can observe the material conveying within the feeding chamber through the transparent viewing element and observation notch. If jamming or insufficient material is observed, the user can promptly control the feeding screw to stop rotating and address the issue.

[0034] The mounting bracket design eliminates the need for the transparent observation piece to be directly mounted on the feed pipe, thus avoiding the need to integrally machine a structure for mounting the transparent observation piece onto the feed pipe and reducing the processing difficulty of the feed pipe. The transparent observation piece covers the observation opening, facilitating user observation of the material conveying within the feed chamber and preventing material leakage from the observation opening. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the feeder provided in an embodiment of the present utility model;

[0036] Figure 2 An exploded view of one form of the feeder provided in an embodiment of this utility model;

[0037] Figure 3An exploded view of another form of the feeder provided in an embodiment of the present utility model;

[0038] Figure 4 This is a schematic diagram of the structure of the observation window assembly provided in an embodiment of the present utility model;

[0039] Figure 5 An exploded view of the observation window assembly provided in an embodiment of this utility model;

[0040] Figure 6 A schematic diagram of the structure of the transparent observation piece fixing frame provided in the embodiment of this utility model.

[0041] Figure 7 A schematic diagram showing the disassembled relationship between the air duct assembly and the feeding pipe provided in this embodiment of the utility model;

[0042] Figure 8 This is a schematic diagram of the material guiding assembly provided in an embodiment of the present utility model;

[0043] Figure 9 An exploded view of the material guiding assembly provided in an embodiment of this utility model;

[0044] Figure 10 This is a partial structural schematic diagram of the pellet furnace provided in an embodiment of the present utility model.

[0045] Label Explanation:

[0046] 10. Furnace body; 20. Material bucket;

[0047] 1. Feed pipe; 12. Feed inlet; 13. Feed outlet; 14. Observation gap;

[0048] 2. Feeding screw;

[0049] 3. Observation window assembly; 31. Mounting bracket; 311. Mounting bracket body; 3111. Connecting part; 3112. First encircling part; 3113. Second encircling part; 3114. Limiting groove; 31141. Avoidance notch; 312. Transparent observation piece fixing frame; 3121. Mounting groove; 313. Locking flange; 3131. Horizontal part; 3132. Vertical part; 32. Transparent observation piece;

[0050] 4. Air duct assembly; 41. Air duct top cover; 411. Inner flange; 42. Air duct housing;

[0051] 5. Material guiding assembly; 51. Material guiding frame edge sealing component; 52. Material guiding frame;

[0052] 6. Feed screw drive assembly; 61. Drive source; 62. Drive source mounting bracket;

[0053] 7. Mounting plate. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] In the description of this application, it should be understood that the terms "upper", "top", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0056] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0057] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] Example 1

[0059] See Figures 1-3 This embodiment provides a feeder that can transport materials.

[0060] Specifically, the feeder is used to convey material to the pellet furnace. Optionally, the material is fuel, and more preferably, pellet combustion, and the pellet furnace can be used for heating.

[0061] The feeder includes a feed pipe 1, a feed screw 2, and an observation window assembly 3.

[0062] The feeding pipe 1 is provided with a feeding chamber. The feeding pipe 1 is provided with a feeding inlet 12, a feeding outlet 13 and an observation notch 14. The feeding inlet 12, the feeding outlet 13 and the observation notch 14 are all connected to the feeding chamber.

[0063] Specifically, taking the actual usage position of the feeder as an example, the feed screw 2 is rotatably arranged in the feed chamber around its own axis. The feed inlet 12 is located at one end of the feed pipe 1 and is set with its opening facing upward; the observation notch 14 is located on the side of the feed pipe 1; and the feed outlet 13 is located at the other end of the feed pipe 1.

[0064] The observation window assembly 3 includes a mounting bracket 31 and a transparent observation element 32 disposed on the mounting bracket 31. The mounting bracket 31 is mounted on the feed tube 1, and the transparent observation element 32 covers the observation notch 14.

[0065] Specifically, the observation window assembly 3 is positioned closer to the feeding inlet 12 than the feeding outlet 13, so that when the feeder is installed in the pellet mill, the observation window assembly 3 is exposed relative to the outside of the pellet mill, allowing the user to observe the feeding situation in the feeding pipe 1 through the observation window assembly 3.

[0066] In this embodiment, the feeder delivers material into the feeding chamber through the feeding inlet 12 during operation. The feeding screw 2 rotates around itself, conveying the material in the feeding chamber to the feeding outlet 13. Simultaneously, due to the observation window assembly 3, the user can observe the material conveying situation in the feeding chamber through the transparent observation piece 32 and the observation notch 14. If jamming or material shortage is observed, the user can promptly control the feeding screw 2 to stop rotating and address the issue.

[0067] The mounting bracket 31 eliminates the need for the transparent observation piece 32 to be directly mounted on the feeding pipe 1, thus avoiding the need to integrally machine a structure for mounting the transparent observation piece 32 onto the feeding pipe 1, reducing the machining difficulty of the feeding pipe 1. The transparent observation piece 32 covers the observation notch 14, which facilitates the user's observation of the material conveying in the feeding chamber and also prevents material leakage from the feeding chamber through the observation notch 14.

[0068] Optionally, in this embodiment, the transparent observation element 32 is an acrylic sheet. Acrylic sheets have good light transmittance, are lightweight, have strong impact resistance, and a relatively long service life. Of course, in other embodiments, the transparent observation element 32 can also be a glass sheet or other transparent materials.

[0069] Furthermore, the feeder also includes a feed screw drive assembly 6, which is used to drive the feed screw 2 to rotate around its own axis.

[0070] The feed screw drive assembly 6 includes a drive source 61 and a drive source mounting bracket 62, with the drive source 61 fixedly mounted on the drive source mounting bracket 62. The output end of the drive source 61 is connected to the feed screw 2 for transmission, driving the feed screw 2 to rotate around its own axis.

[0071] Optionally, the drive source 61 is a motor.

[0072] In one embodiment, the feeding tube 1 is provided with multiple observation notches 14, and the mounting bracket 31 is provided with multiple transparent observation elements 32, with each transparent observation element 32 corresponding to one of the observation notches 14. This arrangement makes it easier for the user to observe the feeding situation inside the feeding chamber.

[0073] For example, a plurality of observation notches 14 may be spaced apart along the axial direction of the feed tube 1; or, a plurality of observation notches 14 may be spaced apart along the circumferential direction of the feed tube 1.

[0074] Specifically, see Figure 2 and Figure 3 In one embodiment, the feeding tube 1 is provided with two observation notches 14, which are arranged opposite to each other. The mounting bracket 31 is provided with two transparent observation elements 32 arranged at intervals, and the transparent observation elements 32 are arranged one-to-one with the observation notches 14. This arrangement allows the user to observe the feeding situation in the feeding chamber from different directions.

[0075] Specifically, taking the actual usage position of the feeder as an example, the two observation notches 14 are located on opposite sides of the feed pipe 1.

[0076] Specifically, see Figure 4 and Figure 5 In one embodiment, the mounting bracket 31 includes a mounting bracket body 311 and a transparent viewing element fixing frame 312.

[0077] The mounting bracket body 311 is installed on the feeding pipe 1.

[0078] The transparent observation piece fixing frame 312 is installed on the mounting bracket body 311, and the transparent observation piece 32 is installed on the transparent observation piece fixing frame 312.

[0079] When actually assembling the observation window assembly 3, first assemble the transparent observation piece 32 onto the transparent observation piece fixing frame 312, then install the transparent observation piece fixing frame 312 onto the mounting frame body 311, and finally install the mounting frame body 311 onto the feeding pipe 1.

[0080] Furthermore, in one embodiment, see [link to relevant documentation]. Figure 6 The transparent observation piece fixing frame 312 is provided with a mounting groove 3121 that mates with the transparent observation piece 32. The mounting groove 3121 is arranged along the circumference of the transparent observation piece 32.

[0081] Specifically, the transparent observation piece fixing frame 312 is a rubber sleeve made of silicone or rubber. The rubber sleeve is easily deformable, which facilitates the installation of the transparent observation piece 32 into the mounting slot 3121. After the transparent observation piece 32 is inserted into the mounting slot 3121, the transparent observation piece fixing frame 312 is fixed to the mounting bracket body 311 with screws.

[0082] If the transparent viewing member 32 is scratched due to long-term use or external objects, the transparent viewing member 32 can be conveniently replaced.

[0083] Furthermore, referring to Figures 1-3 , in one embodiment, the mounting bracket 31 is clamped around the feeding pipe 1. The clamping-around method can ensure the stability of the mounting position of the mounting bracket 31 on the feeding pipe 1, and further ensure that the position of the transparent viewing member 32 always remains stable, facilitating the user to observe the conveying condition of the materials in the feeding cavity at any time.

[0084] Specifically, referring to Figure 4 and Figure 5 , in one embodiment, the mounting bracket 31 includes a connecting portion 3111, a first surrounding portion 3112 and a second surrounding portion 3113.

[0085] The first surrounding portion 3112 is arranged on one side of the connecting portion 3111 and is arranged to fit the outer side surface of the feeding pipe 1, and the transparent viewing member 32 is arranged on the first surrounding portion 3112.

[0086] The second surrounding portion 3113 is arranged on the other side of the connecting portion 3111 and is arranged to fit the outer side surface of the feeding pipe 1, and the transparent viewing member 32 is arranged on the second surrounding portion 3113. The first surrounding portion 3112 and the second surrounding portion 3113 clamp the feeding pipe 1, and observation gaps 14 corresponding to the transparent viewing member 32 are arranged on the feeding pipe 1.

[0087] The mounting bracket 31 with the above structure can be stably clamped around the outer periphery of the feeding pipe 1. The arrangement of the connecting portion 3111 avoids the excessive clamping force between the first surrounding portion 3112 and the second surrounding portion 3113 when the mounting bracket 31 is not mounted on the feeding pipe 1, resulting in excessive assembly difficulty of the mounting bracket 31.

[0088] Specifically, the mounting bracket body 311 includes a connecting portion 3111, a first surrounding portion 3112 and a second surrounding portion 3113. Limiting grooves 3114 for mounting the transparent viewing member fixing frame 312 are arranged on both the first surrounding portion 3112 and the second surrounding portion 3113, and one transparent viewing member fixing frame 312 can be mounted at each limiting groove 3114. The mounting bracket body 311 is clamped around the outer periphery of the feeding pipe 1. With such an arrangement, there is no need to use a connecting member to mount the mounting bracket body 311 on the feeding pipe 1, avoiding deformation of the feeding pipe 1 when drilling holes in the feeding pipe 1, and even affecting the normal operation of the feeding screw 2.

[0089] Optionally, the connecting portion 3111 has a "U" - shaped structure so that the connecting portion 3111 can be adaptively opened to enable the mounting bracket body 311 to be stably clamped around the outer periphery of the feeding pipe 1.

[0090] More specifically, a clearance notch 31141 is provided at the center of the limiting groove 3114 on the first encircling portion 3112, and a clearance notch 31141 is also provided at the center of the limiting groove 3114 on the second encircling portion 3113. After the transparent observation piece fixing frame 312 is installed into the limiting groove 3114, the transparent observation piece 32 on the transparent observation piece fixing frame 312 is positioned directly opposite the clearance notch 31141.

[0091] Specifically, the connecting part 3111, the first encircling part 3112, and the second encircling part 3113 are all made of elastic materials, for example, spring steel or elastomeric plastic.

[0092] See Figures 1-3 , Figure 7 In one embodiment, the feeder further includes an air duct assembly 4, which abuts against the feed pipe 1, and the mounting bracket 31 is circumferentially engaged with the feed pipe 1 and connected to the air duct assembly 4.

[0093] Since the feeder is used in a pellet mill, an air duct assembly 4 is integrated into the feed pipe 1 to supply air and oxygen to the pellet mill. The mounting bracket 31 is clamped around the feed pipe 1 and connected to the air duct assembly 4, so that the air duct assembly 4 abuts against the feed pipe 1, thereby achieving stable installation of the air duct assembly 4 on the feed pipe 1.

[0094] Specifically, in one embodiment, see [link to relevant documentation]. Figure 1 , Figure 4 and Figure 5 The mounting bracket 31 includes a locking flange 313, which is locked to the air duct assembly 4 via a locking accessory. This configuration fully ensures the stable installation of the air duct assembly 4 on the feed pipe 1.

[0095] Specifically, both the free ends of the first encircling portion 3112 and the free ends of the second encircling portion 3113 are provided with locking flanges 313 to ensure the installation stability of the mounting bracket 31.

[0096] Specifically, the air duct assembly 4 includes an air duct top cover 41 and an air duct housing 42. The air duct top cover 41 has inner flanges 411 on both sides. The air duct top cover 41 covers the upper opening of the air duct housing 42. The two inner flanges 411 abut against the inner sides of the two side plates of the air duct housing 42. The air duct top cover 41 is sandwiched between the air duct housing 42 and the feeding pipe 1. The locking flange 313 includes a horizontal part 3131 and a vertical part 3132. The horizontal part 3131 abuts against the upper surface of the air duct top cover 41, and the vertical part 3132 abuts against the outer side of the side plate of the air duct housing 42. The locking accessory passes through the vertical part 3132, the side plate of the air duct housing 42 and the inner flange 411 in sequence to realize the connection between the mounting frame body 311 and the air duct assembly 4.

[0097] One end of the air duct box 42 is an air inlet, and the other end is an air outlet, which is connected to the combustion chamber of the pellet furnace.

[0098] Further, see Figure 1 , Figure 8 and Figure 9 In one embodiment, a material guiding component 5 is provided at the feeding inlet 12, which can guide the material into the feeding inlet 12, thereby allowing the material to enter the feeding chamber.

[0099] Specifically, see Figure 8 and Figure 9 The material guiding component 5 includes a material guiding frame sealing member 51 and a material guiding frame 52. The material guiding frame sealing member 51 has a rectangular frame structure, and the material guiding frame 52 is arranged to form a funnel-shaped cavity so as to temporarily store the material and guide the material into the feeding cavity through the feeding inlet 12.

[0100] The guide frame 52 is installed at the feeding inlet of the feeding pipe 1. The guide frame sealing part 51 is installed at the end of the guide frame 52 away from the feeding pipe 1, which can play the role of sealing and protecting the edge of the guide frame 52 and preventing the edge of the guide frame 52 from deforming under external force.

[0101] Specifically, when this feeder is used in a pellet mill, it needs to be installed on the pellet mill's hopper. The end of the feeder with the feeding inlet 12 is located inside the hopper, allowing the material inside the hopper to directly enter the guide frame 52.

[0102] In order to enable the feeder to be installed on the material barrel, the feeder also includes a mounting plate 7, which is sleeved on the outer periphery of the feeding pipe 1 and fixed to the side wall of the material barrel.

[0103] More specifically, the mounting plate 7 is sleeved on the outer periphery of the feeding pipe 1 and the air duct assembly 4, and is fixed to the side wall of the material hopper by screws. Preferably, the mounting plate 7 is disposed in close contact with the outer side wall of the material hopper.

[0104] For example, in this embodiment, the operation of the feeder is as follows:

[0105] Material enters the feeding chamber from the feeding guide assembly 5 through the feeding inlet 12. At the same time, the drive source 61 drives the feeding screw 2 to rotate around its own axis, continuously conveying the material toward the feeding outlet 13. During the operation of the feeder, the user can observe the material conveying situation in the feeding chamber through the observation window assembly 3.

[0106] Example 2

[0107] This embodiment provides a pellet furnace.

[0108] See Figure 10 The pellet furnace includes a furnace body 10 and the feeder in Example 1.

[0109] A combustion chamber is provided inside the furnace body 10. The feed outlet 13 of the feeder is connected to the combustion chamber to deliver fuel to the combustion chamber. The observation window assembly 3 is located outside the combustion chamber.

[0110] The pellet furnace provided in this embodiment uses a feeder to deliver fuel to the pellet furnace; the fuel is specifically pellet fuel. During operation, the feeder feeds material into the feeding chamber through the feeding inlet 12. The feeding screw 2 rotates around itself, conveying the material in the feeding chamber to the combustion chamber through the feeding outlet 13. Simultaneously, the observation window assembly 3 is located outside the combustion chamber, allowing the user to observe the material conveying status in the feeding chamber through the transparent observation piece 32 and the observation notch 14. If jamming or insufficient material is observed, the user can promptly control the feeding screw 2 to stop rotating and address the jamming or insufficient material situation.

[0111] Furthermore, in this embodiment, the pellet furnace also includes a material hopper 20, which can hold materials. One end of the feeding pipe 1, which is provided with a feeding inlet 12, is located inside the material hopper 20, and the other end extends through the side wall of the material hopper 20 and into the combustion chamber of the furnace body 10. Finally, the material is burned in the combustion chamber to provide warmth for the user. The mounting plate 7 is sleeved on the outer periphery of the feeding pipe 1 and the air duct assembly 4, and is fixedly installed to the side wall of the material hopper 20 by screws.

[0112] The observation window assembly 3 is located between the material bucket 20 and the furnace body 10 so that the user can observe the feeding status of the feeder.

[0113] The drive source mounting bracket 62 is fixedly installed inside the material bucket 20.

[0114] Specifically, in this embodiment, the material bucket 20 is funnel-shaped.

[0115] For example, in this embodiment, the operation of the pellet furnace is as follows:

[0116] The material is placed in the material bucket 20, and the material in the material bucket 20 enters the feeding chamber through the material guide assembly 5; the drive source 61 drives the feeding screw 2 to rotate around its own axis, continuously conveying the material toward the feeding outlet 13; during the operation of the feeder, the user can observe the material conveying situation in the feeding chamber through the observation window assembly 3.

[0117] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0118] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A feeder, characterized in that, include: Feeding pipe (1), the feeding pipe (1) is provided with a feeding cavity, the feeding pipe (1) is provided with a feeding inlet (12), a feeding outlet (13) and an observation notch (14), the feeding inlet (12), the feeding outlet (13) and the observation notch (14) are all connected to the feeding cavity; The feeding screw (2) is rotatably disposed in the feeding chamber around its own axis; The observation window assembly (3) includes a mounting bracket (31) and a transparent observation element (32) disposed on the mounting bracket (31), the mounting bracket (31) being mounted on the feed tube (1), and the transparent observation element (32) covering the observation notch (14).

2. The feeder according to claim 1, characterized in that, The feeding tube (1) is provided with two observation notches (14) which are arranged opposite to each other. The mounting bracket (31) is provided with two transparent observation pieces (32) which are arranged at a distance from each other. The transparent observation pieces (32) correspond one-to-one with the observation notches (14).

3. The feeder according to claim 1, characterized in that, The mounting bracket (31) includes: The mounting bracket body (311) is installed on the feeding pipe (1); A transparent observation piece fixing frame (312) is installed on the mounting frame body (311), and the transparent observation piece (32) is installed on the transparent observation piece fixing frame (312).

4. The feeder according to claim 3, characterized in that, The transparent observation piece fixing frame (312) is provided with a mounting groove (3121) that cooperates with the transparent observation piece (32), and the mounting groove (3121) is arranged along the circumference of the transparent observation piece (32).

5. The feeder according to claim 1, characterized in that, The mounting bracket (31) is circumferentially engaged with the feeding pipe (1).

6. The feeder according to claim 5, characterized in that, The mounting bracket (31) includes: Connecting part (3111); The first encircling part (3112) is disposed on one side of the connecting part (3111) and is attached to the outer side of the feeding tube (1). The transparent observation piece (32) is disposed on the first encircling part (3112). The second encircling part (3113) is disposed on the other side of the connecting part (3111) and is attached to the outer side of the feeding tube (1). The transparent observation element (32) is disposed on the second encircling part (3113). The first encircling part (3112) and the second encircling part (3113) are clamped to the feeding tube (1). The feeding tube (1) is provided with observation notches (14) that correspond one-to-one with the transparent observation element (32).

7. The feeder according to claim 1, characterized in that, The feeding tube (1) is provided with a plurality of observation notches (14), and the mounting bracket (31) is provided with a plurality of transparent observation elements (32), and the transparent observation elements (32) are provided in a one-to-one correspondence with the observation notches (14).

8. The feeder according to any one of claims 1-7, characterized in that, The feeder also includes an air duct assembly (4), which abuts against the feeding pipe (1), and the mounting bracket (31) is wrapped around and snapped into the feeding pipe (1) and connected to the air duct assembly (4).

9. The feeder according to claim 8, characterized in that, The mounting bracket (31) includes a locking flange (313) which is locked to the air duct assembly (4) by a locking attachment.

10. A pellet furnace, characterized in that, include: Furnace body (10), wherein a combustion chamber is provided inside the furnace body (10); The feeder as described in any one of claims 1-9, wherein the feed outlet (13) of the feeder is connected to the combustion chamber, and the observation window assembly (3) is located outside the combustion chamber.

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