Biomass fuel integrated device based on straw mixed kitchen waste

Abstract

The utility model discloses a biomass fuel integrated device based on straw mixed kitchen waste, which comprises a shell, a pretreatment drying box for drying and dewatering the kitchen waste, and a crushing mechanism for crushing the straw and the kitchen waste treated by the pretreatment drying box, the stirring mechanism is used for stirring and mixing the straws treated by the crushing mechanism and the kitchen waste; the extruding mechanism 4 is used for extruding and forming the straws and the kitchen waste which are stirred and mixed by the stirring mechanism; the material storage chamber is used for buffering and storing the extruded and formed materials; and the hearth is used for combusting the formed materials. The device is reasonable in structure and is an integrated device, the equipment investment cost is low, and straw and kitchen waste can be converted into biomass fuel to be combusted only through one kind of equipment; the kitchen waste in the pretreatment drying box is dried to remove moisture through the first pipeline and the second pipeline by using the heat of the hearth, so that the operation cost can be further reduced, and energy conservation and consumption reduction are realized; and after kitchen waste in the pretreatment drying box passes through the draining holes, liquid flowing into the hearth through the second pipeline can be absorbed by stove ash in the hearth, and the treatment capacity and strength of kitchen waste sewage can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of biomass fuel, in particular to a biomass fuel integrated device based on straw mixed with kitchen waste. Background Art

[0002] Biomass fuel: refers to the burning of biomass materials as fuel, generally mainly agricultural and forestry waste (such as straw, sawdust, bagasse, rice bran, etc.). The application of biomass fuel is actually mainly biomass molding fuel, which is made by crushing agricultural and forestry waste as raw materials. 、 mix 、 Extrusion, drying and other processes are used to make various shapes (such as blocks, granules, etc.) and a new type of clean fuel that can be directly burned. In the prior art, there are technical solutions for biomass fuel based solely on straw, such as the utility model patent "A biomass fuel production line based on crop straw" with application number 2022218712015, and there are also technical solutions for biomass fuel based solely on food waste, such as the utility model patent "Device for making fuel from kitchen waste residue" with application number 2022209224205. However, in the actual application process, straw and food waste are both recyclable and reusable resources that need to be processed, especially in rural areas. In the prior art, straw and food waste are processed separately into biomass fuels, which obviously requires separate equipment preparation, which is not only costly but also inconvenient. Therefore, it is necessary to improve the prior art and provide an integrated biomass fuel device based on straw mixed with food waste, which can convert straw and food waste into biomass fuel for combustion. Utility Model Content

[0003] Therefore, based on the above background, the utility model provides a biomass fuel integrated device based on straw mixed with kitchen waste.

[0004] The technical solution provided by the utility model is:

[0005] A biomass fuel integrated device based on straw mixed with kitchen waste, comprising a shell, and further comprising:

[0006] A pretreatment drying box, which is used to dry and remove moisture from the kitchen waste;

[0007] A crushing mechanism, the crushing mechanism comprising a crushing assembly and a first driving machine, wherein the crushing assembly crushes the straw and the food waste processed by the pre-treatment drying box under the driving action of the first driving mechanism;

[0008] The stirring mechanism comprises a stirring component and a second driving mechanism, wherein the stirring component stirs and mixes the straw and the kitchen waste processed by the crushing mechanism under the driving action of the second driving mechanism;

[0009] The extrusion mechanism comprises an extrusion component and a third driving mechanism, wherein the extrusion component extrudes and shapes the straw and the kitchen waste after being stirred and mixed by the stirring mechanism under the driving action of the third driving mechanism;

[0010] A storage chamber, in which the straw and kitchen waste extruded and formed by the extrusion mechanism fall into the storage chamber through the first discharge port of the extrusion component for buffer storage;

[0011] The furnace is connected with the storage chamber, and the molding material in the storage chamber can fall into the furnace for combustion.

[0012] One implementation method is that the pretreatment drying box includes a pretreatment drying box body with a side opening, a pull-out drying drawer is provided in the box body, and a support plate is provided at the bottom of the drying drawer, and drainage holes are arranged on the support plate.

[0013] One implementation method is that a first pipeline is connected to the top plate of the pretreatment drying box, and the first pipeline is connected to the furnace;

[0014] A second pipeline is connected to the bottom plate of the pretreatment drying box, and the second pipeline is communicated with the furnace.

[0015] In one implementation, the shell includes, from top to bottom, a first shell, a second shell, and a third shell;

[0016] The first shell has openings at the top and bottom;

[0017] The second shell has openings at the top and bottom;

[0018] The shell cavity of the third shell is divided into a storage chamber and an extrusion chamber by a vertical partition;

[0019] The crushing assembly is located in the first shell, the stirring assembly is located in the second shell, and the extrusion assembly is located in the extrusion chamber.

[0020] One implementation method is that a through hole is provided on the partition, and the through hole is adapted to the first discharge port of the extrusion assembly.

[0021] One implementation manner is that an inclined top plate is provided on the third shell, and the lower end of the top plate is close to the first feed port of the extrusion assembly.

[0022] The above technical solution has the following beneficial effects:

[0023] The utility model has a reasonable structure, is an integrated device, has low equipment investment cost, and only requires one device to convert straw and its kitchen waste into biomass fuel for combustion;

[0024] In addition, the utility model uses the heat of the furnace to dry the food waste in the pretreatment drying box through the first pipeline and the second pipeline to remove moisture, which can further reduce the operating cost and achieve energy saving and consumption reduction; and after the food waste in the pretreatment drying box passes through the drain hole, the liquid that flows into the furnace through the second pipeline can be absorbed by the ash in the furnace, which can reduce the processing amount and intensity of food waste water. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0027] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0028] Figure 3 The structure of the utility model is shown in FIG. Figure 3 ;

[0029] Figure 4 The structure of the utility model is shown in FIG. Figure 4 ;

[0030] Figure 5 The structure of the utility model is shown in FIG. Figure 5 ;

[0031] Figure 6 The structure of the utility model is shown in FIG. Figure 6 ;

[0032] Figure 7 for Figure 6 An enlarged view of the circled portion;

[0033] Figure 8 The structure of the utility model is shown in FIG. Figure 7 ;

[0034] Fig. 9 The structure of the utility model is shown in FIG. Figure 8 ;

[0035] Fig.10 The structure of the utility model is shown in FIG. Figure 9 ;

[0036] Fig.11It is a schematic cross-sectional structural diagram of the second housing of the utility model;

[0037] Fig.12 It is a schematic cross-sectional structural diagram of the third housing of the present utility model;

[0038] Fig.13 The structure diagram of the extrusion assembly of the utility model is shown in FIG. Figure 1 ;

[0039] Fig.14 The structure diagram of the extrusion assembly of the utility model is shown in FIG. Figure 2 ;

[0040] Fig.15 The structure of the drying drawer of the utility model is shown in FIG. Figure 1 ;

[0041] Fig.16 The structure of the drying drawer of the utility model is shown in FIG. Figure 2 ;

[0042] Fig.17 The structure of the utility model is shown in FIG. Figure 10 ;

[0043] Fig.18 It is a cross-sectional structural schematic diagram of the furnace of the utility model;

[0044] Fig.19 This is a schematic diagram of the structure of Example 2 of the utility model Figure 1 ;

[0045] Fig. 20 This is a schematic diagram of the structure of Example 2 of the utility model Figure 2 ;

[0046] Fig.21 The structure of the discharge pipe of Example 3 of the utility model is shown in FIG. Figure 1 ;

[0047] Fig. 22 The structure of the discharge pipe of Example 3 of the utility model is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0049] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of the present utility model, "first feature" and "second feature" may include one or more of the features. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0051] The utility model is further described below in conjunction with the accompanying drawings.

[0052] Example 1: Reference Figure 1 and Fig.16 The biomass fuel integrated device based on straw mixed with kitchen waste shown includes a housing 1, which also includes:

[0053] A pre-treatment drying box 7, wherein the pre-treatment drying box 5 is used to dry and remove moisture from the food waste;

[0054] The crushing mechanism 2 includes a crushing assembly 21 and a first driving machine 22. The crushing assembly 21 crushes the straw and the food waste after being processed by the pre-treatment drying box 5 under the driving action of the first driving mechanism 22; Figures 4 to 7 As shown, the crushing assembly 21 includes a double-axis toothed cutter, and the double-axis toothed cutter includes two toothed roller shafts, on which toothed cutters are arranged, and the toothed cutters on the two toothed rollers are arranged in a staggered manner, and the first driving mechanism includes a first driving motor, and the crushing assembly 21 is connected to the first driving mechanism through a first transmission mechanism 23. Specifically, the double-axis toothed cutter rotates in opposite directions through the first transmission mechanism 23, so that the straw and kitchen waste falling between the toothed cutters can be rolled into the toothed cutters under the action of the rotational force to be crushed. The implementation of the first transmission mechanism can be as follows Figure 7As shown, the first transmission mechanism includes a bevel gear 231, which is connected to the driving shaft of the first motor, and the bevel gear is connected to a first driving gear 232. The first driving gear 232 is fixedly mounted on one of the gear roller shafts, and the first driving gear 232 is coaxially provided with a second driving gear 233. The second driving gear 233 is meshed with another driven gear 234 installed on the other gear roller shaft.

[0055] The stirring mechanism 3 includes a stirring component 31 and a second driving mechanism 32. The stirring component 31 stirs and mixes the straw and kitchen waste processed by the crushing mechanism 2 under the driving action of the second driving mechanism 32; the stirring component 31 includes a horizontal stirring rotating shaft, and a stirring paddle is provided on the stirring rotating shaft. The stirring rotating shaft is connected to the second driving mechanism 32 through a second transmission mechanism 33. The second transmission mechanism 32 is a belt transmission mechanism. The second driving mechanism 32 includes a second motor. The motor drives the shaft to rotate through the belt transmission mechanism, which is a conventional technology and will not be described in detail.

[0056] The extrusion mechanism 4 includes an extrusion assembly 41 and a third drive mechanism 43. The extrusion assembly 41 extrudes the straw and the kitchen waste after being stirred and mixed by the stirring mechanism 3 under the driving action of the third drive mechanism; the extrusion assembly includes a cone 41, which is fixedly installed in the extrusion chamber, and a conical spiral extrusion rod 42 is arranged in the cone 41. The spiral extrusion rod 42 is provided with a rotating connecting shaft, and the rotating connecting shaft is connected to the third drive mechanism through a third transmission mechanism 44. The third transmission mechanism 44 is a belt transmission mechanism, and the third drive structure includes a motor. A feed port 411 is arranged on the side curved surface of the cone 41, and the right end thereof is a first discharge port 412.

[0057] The storage chamber 5, the straw and the kitchen waste extruded and formed by the extrusion mechanism 4 fall into the storage chamber 5 through the first discharge port 412 of the extrusion component 41 for buffer storage;

[0058] The furnace 6, the storage chamber 5 is connected to the furnace 6, the molding material in the storage chamber 5 can fall into the furnace 6 for combustion, and a chimney pipe 62 is provided on the side of the furnace 6.

[0059] In actual use, the chimney pipe 62 can be connected to a heating pipeline to achieve heating by burning biomass fuel mixed with straw and kitchen waste, or a pot can be placed above the furnace 6 to boil water or cook.

[0060] The pretreatment drying box 7 includes a pretreatment drying box body with a side opening, and a pull-out drying drawer 73 is provided in the box body. The drying drawer 73 has a support plate 731 at the bottom, and drain holes 731 are arranged on the support plate 731. As shown in 15 and 16, the support plate 721 is at a certain distance from the bottom of the drying drawer 73 to better drain water. More specifically, the plate body with a handle of the drying drawer 73 can completely cover the box body with a side opening of the pretreatment drying box 7. Preferably, the upper and lower lengths of the plate body with a handle of the drying drawer 73 are greater than the corresponding length of the side opening, so that the plate body with a handle can be partially fitted and in contact with the pretreatment drying box body to avoid having a large gap, so as to reduce the outflow of garbage water.

[0061] In the specific implementation of this embodiment, the food waste is first placed in a drying drawer, dried in a pre-treatment drying box to remove moisture, and then placed in a drying drawer after the food waste is drained to a certain extent and no large amount of garbage water is drained out; after the food waste placed in the drying drawer is dried for a period of time, the drawer is pulled out and the food waste is poured into it from the upper opening of the first shell.

[0062] One implementation method is that a first pipeline 71 is connected to the top plate of the pretreatment drying box, and the first pipeline 71 is connected to the furnace 6; a second pipeline 72 is connected to the bottom plate of the pretreatment drying box, and the second pipeline 72 is connected to the furnace 6. The high-temperature airflow in the furnace is introduced into the drying box through the first pipeline, passes through the drying drawer from top to bottom, and returns to the furnace through the second pipeline, so as to heat and dry the food waste. The water drained from the carrier plate will also flow into the furnace through the second pipeline and be absorbed by the ash in the furnace. The hot air flow introduced from the furnace through the first pipeline 71 is directed upward. After entering the pretreatment drying box, the hot air flow accumulates, the air pressure in the pretreatment drying box is large, and the air flow passing through the food waste will contain a certain amount of water, and its direction is downward. Therefore, the air flow returns to the furnace through the second pipeline along with the water drained from the food waste, so that the heat in the pretreatment drying box is in the upper part and out the lower part.

[0063] The garbage water introduced into the furnace through the second pipeline is absorbed by the furnace ash. For example, the outlet of the second pipeline is located above the furnace ash, and the garbage water drips into the furnace ash through the second pipeline for absorption. Alternatively, the second pipeline in the furnace has a plurality of water holes, so that the garbage water drips into the furnace below through the water holes and is absorbed. The airflow returning to the furnace through the second pipeline is finally discharged through the chimney pipe 62.

[0064] The shell 1 includes a first shell 11, a second shell 12, and a third shell 13 from top to bottom. The first shell 11 is opened at the top and bottom. The second shell 12 is opened at the top and bottom. The shell cavity of the third shell 13 is divided into a storage chamber 5 and an extrusion chamber by a vertical partition 15. The crushing assembly 21 is located in the first shell 11, the stirring assembly 31 is located in the second shell 12, and the extrusion assembly 41 is located in the extrusion chamber. The front and rear side walls of the second shell 12 are concave arcs to better adapt to the stirring action of the stirring mechanism.

[0065] Specifically, both ends of the tooth roller shaft of the crushing assembly 21 are mounted on the first shell through bearings to achieve rotatable mounting, and a placement shell is provided under the third shell, and the second drive mechanism and the third drive mechanism can be appropriately mounted in the shell cavity 14 of the placement shell, and the top surface of the placement shell horizontally extends outwardly to form a placement plate, and the first drive mechanism and the second transmission mechanism can be appropriately mounted on the placement plate. In a specific implementation, the first shell 11, the second shell, the third shell 13, the furnace 6, and the placement shell are all made of stainless steel, and they can be connected by welding.

[0066] The partition 15 is provided with a through hole 151 , and the first discharge port of the extrusion assembly 41 is located in the storage chamber 5 through the through hole 151 , and the biomass fuel extruded by the extrusion assembly 41 enters the storage chamber 5 through the first discharge port.

[0067] Specific as Fig.12 As shown, the third housing 12 is provided with an inclined top plate 131, and the lower end of the top plate 131 is close to the first feed port 411 of the extrusion assembly 41. In this way, the straw and kitchen waste stirred by the stirring mechanism can easily enter the feed port 411 through the inclined top plate 13 for extrusion molding.

[0068] More specifically, if Fig.17As shown, a second discharge port 51 is provided on the bottom plate in the storage chamber 5, and a second feed port 81 is provided on the back wall of the furnace. The second discharge port 51 is connected with the second feed port 81 through a discharge pipe 8, that is, the fuel in the storage chamber 5 enters the fuel basket 63 of the furnace 6 through the discharge pipe 8 for combustion. The bottom plate of the combustion basket 63 is a grid plate, and the ash after combustion falls to the bottom of the furnace through the grid plate. An ash port 61 is provided on the shell of the furnace, and the ash after combustion is removed through the ash port. More specifically, a door body is correspondingly provided on the ash port 61. More specifically, the airflow in the furnace can also enter the storage chamber through the discharge pipe 8 to perform secondary drying or carbonization on the fuel in it, and then an air outlet pipe or an air outlet hole (not drawn in the attached figure) is appropriately provided on the outer shell of the storage chamber opposite to the partition 15. There may be another embodiment, wherein the side of the shell corresponding to the storage chamber 5 and the extrusion chamber is provided with a visual port, and the visual port is provided with a visual window made of a transparent material, so as to observe the situation inside, especially to observe and understand the material storage situation in the storage chamber 5. More specifically, the shell of the furnace may also be provided with a visual port and a corresponding visual window, so as to observe the situation inside the furnace, which are conventional technologies and will not be described in detail here.

[0069] Example 2: Reference Figure 1 and Fig. 20 The integrated device for biomass fuel based on straw mixed with kitchen waste is shown in FIG. Figures 17 to 20 As shown, compared with Embodiment 1, in this embodiment, a first plug-in control plate 9 is provided between the second shell 12 and the third shell 13 to control the feeding of the material stirred by the stirring assembly to the extrusion assembly.

[0070] More specifically, the bottom surface of the second housing 12 is provided with a first slot 121 adapted to the plate body of the first plug-in control board 9. After the first plate body of the first plug-in control board 9 is inserted into the first slot, Fig.19 As shown, the first plate body 91 is located above the third shell body, and the material in the second shell body cannot enter the extrusion assembly due to the blocking effect of the first plate body; when the material in the second shell needs to enter the extrusion assembly, the first pull ring 92 on the first plug-in plate 9 is used to apply force to pull the first plug-in plate 9 out of the first slot 121, and the material in the second shell body enters the first feed port of the extrusion assembly for extrusion molding.

[0071] Example 3: Reference Figure 1 and Fig. 20 The integrated device for biomass fuel based on straw mixed with kitchen waste is shown in FIG. Fig.17 , Figure 21 to Figure 22As shown, the discharge pipe 8 is provided with a control component to control the material in the storage chamber entering the furnace. The control component can adopt a gate valve. The principle and working process of the gate valve are conventional technologies and will not be described in detail here.

[0072] Or use Fig.21 and Fig. 22 As shown, the discharge pipe 8 is provided with a second plug-in control plate 100, and the second plug-in control plate 100 includes a second plate body 1001, and the second plate body 1001 is provided with a second pull ring 1002. More specifically, the discharge pipe 8 includes a vertical section 81 connected to the second discharge port 51 at one end, and an inclined section 82 connected to the second feed port 81 of the furnace at one end, and the vertical section 81 is provided with a second clamping groove 83 adapted to the second plate body 1001 at a position close to the inclined section 82. The second plate body is inserted into the second clamping groove to block the fuel of the straight pipe section, and the second plug-in control plate 100 is pulled out through the second pull ring to allow the material of the straight pipe section to enter the furnace. More specifically, the speed and amount of material discharge can be controlled by controlling the degree of withdrawal of the second plug-in control plate 100.

[0073] In this embodiment, both ends of the discharge pipe 8 can be respectively installed on the lower bottom plate of the storage chamber and the back wall of the furnace by welding.

[0074] Example 4: Reference Figure 1 and Fig. 20 The shown embodiment is a biomass fuel integrated device based on straw mixed with kitchen waste. Compared with any one of embodiments 1 to 3, a water receiving tray may be provided under the drying box to collect water flowing out of the pretreatment drying box to prevent it from dripping.

[0075] The upper plate of the pretreatment drying box 7 is provided with a garbage feed port (not shown in the accompanying drawings), and a sealing cover is provided on the feed port. For example, the garbage feed port is a circular feed port, and the sealing cover has a sealing column adapted to the garbage feed port. The sealing column can be made of high-temperature resistant rubber, and the sealing column is inserted into the garbage feed port. Furthermore, the outer diameter of the sealing column is interference fit with the garbage feed port, thereby reducing the outflow of garbage water when placing the kitchen waste in the drying drawer.

[0076] Furthermore, sealing rubber layers are provided on the upper and lower sides of the two side panels of the drying drawer 73 and on the side facing away from the support plate to reduce the outflow of garbage water from the pre-treatment drying box.

[0077] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A biomass fuel integrated device based on straw mixed with kitchen waste, comprising a shell, characterized in that: It also includes: A pretreatment drying box, which is used to dry and remove moisture from the kitchen waste; A crushing mechanism, the crushing mechanism comprising a crushing assembly and a first driving machine, wherein the crushing assembly crushes the straw and the food waste processed by the pre-treatment drying box under the driving action of the first driving mechanism; The stirring mechanism comprises a stirring component and a second driving mechanism, wherein the stirring component stirs and mixes the straw and the kitchen waste processed by the crushing mechanism under the driving action of the second driving mechanism; The extrusion mechanism comprises an extrusion component and a third driving mechanism, wherein the extrusion component extrudes and shapes the straw and the kitchen waste after being stirred and mixed by the stirring mechanism under the driving action of the third driving mechanism; A storage chamber, in which the straw and kitchen waste extruded and formed by the extrusion mechanism fall into the storage chamber through the first discharge port of the extrusion component for buffer storage; The furnace is connected with the storage chamber, and the molding material in the storage chamber can fall into the furnace for combustion.

2. The integrated device for biomass fuel based on straw mixed with kitchen waste according to claim 1, characterized in that: The pretreatment drying box comprises a pretreatment drying box body with a side opening, a pull-out drying drawer is arranged in the box body, and a support plate is arranged at the bottom of the drying drawer, and drainage holes are arranged on the support plate.

3. The integrated device for biomass fuel based on straw mixed with kitchen waste according to claim 2, characterized in that: A first pipeline is connected to the top plate of the pretreatment drying box, and the first pipeline is communicated with the furnace; A second pipeline is connected to the bottom plate of the pretreatment drying box, and the second pipeline is communicated with the furnace.

4. The integrated device for biomass fuel based on straw mixed with kitchen waste according to claim 1, characterized in that: The housing includes, from top to bottom, a first housing, a second housing, and a third housing; The first shell has openings at the top and bottom; The second shell has openings at the top and bottom; The shell cavity of the third shell is divided into a storage chamber and an extrusion chamber by a vertical partition; The crushing assembly is located in the first shell, the stirring assembly is located in the second shell, and the extrusion assembly is located in the extrusion chamber.

5. The integrated device for biomass fuel based on straw mixed with kitchen waste according to claim 4, characterized in that: The partition plate is provided with a through hole, and the through hole is adapted to the first discharge port of the extrusion assembly.

6. The integrated device for biomass fuel based on straw mixed with kitchen waste according to claim 5, characterized in that: The third shell is provided with an inclined top plate, and the lower end of the top plate is close to the first feed port of the extrusion assembly.

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