Forming device for cattle manure biomass fuel pellets

Abstract

The utility model provides a kind of cattle dung biomass fuel granule's forming device, it is related to new energy fuel technical field, the forming device includes: driving mechanism and extrusion mechanism;Extrusion mechanism includes bunker, the one end of this bunker is movably provided with pusher assembly, and the other end of bunker is provided with discharge gate;Driving mechanism is driven connection with pusher assembly, to drive pusher assembly in the direction of discharge gate in bunker movement, and cattle dung raw materials in bunker are extruded from discharge gate to obtain cattle dung biomass fuel granule.The device provided in the present application can be used to prepare shaped cattle dung biomass fuel granule.

Description

Technical Field

[0001] This utility model relates to the field of new energy fuel technology, and in particular to a molding device for cow dung biomass fuel pellets. Background Technology

[0002] The large-scale development of my country's livestock industry has made a significant contribution to enriching the "vegetable basket" project. However, the resulting pollution, especially solid manure pollutants, has become a key technological bottleneck restricting the sustainable development of the livestock industry, posing potential risks to healthy farming and the ecological environment. For example, with the rapid development of cattle farming, manure pollution has become a major problem. Typically, a dairy cow produces more than 7 tons of manure per year, while a cattle cow produces between 5 and 6 tons. Due to insufficient attention paid to manure treatment in various regions, many areas with concentrated cattle farming lack manure treatment facilities. This results in manure being piled up haphazardly, especially during hot seasons, creating a foul stench that negatively impacts the normal lives of surrounding residents and the ecological environment. Furthermore, manure is a breeding ground for various bacteria and pathogens, seriously affecting livestock farming.

[0003] To address the issue of cow manure, numerous treatment methods have emerged in the market, including biogas production and organic fertilizer production. However, due to the unique feeding and fertilization practices of dairy cows in China, it is difficult to stably produce biogas from cow manure. Organic fertilizer production requires significant investment, and fresh cow manure has a high moisture content (over 85%) and low nutrient content, necessitating the addition of various substances to adjust its fertility and meet national organic fertilizer standards. Further research has revealed that cow manure's high moisture content and loose structure allow it to easily shrink in volume and increase in density under external forces, thereby improving its calorific value per unit volume. Furthermore, once formed, it is suitable for use in stoves and boilers. Therefore, processing cow manure into biomass fuel not only solves the environmental pollution problems of livestock farms but also offers significant economic, social, and ecological benefits.

[0004] In the preparation of cow dung biomass fuel, it is usually necessary to form the cow dung into pellets to facilitate drying and ensure complete combustion. Therefore, there is an urgent need for equipment for forming cow dung biomass fuel pellets. Utility Model Content

[0005] In view of this, and to address the above shortcomings, it is necessary to propose a molding device for cow dung biomass fuel pellets, for the purpose of preparing molded cow dung biomass fuel pellets.

[0006] This utility model provides a forming device for cow dung biomass fuel pellets. The forming device includes a driving mechanism and an extrusion mechanism. The extrusion mechanism includes a hopper, one end of which is movably provided with a pushing component, and the other end of which is provided with a discharge port. The driving mechanism is driven to the pushing component to move in the hopper toward the discharge port, thereby extruding the cow dung raw material in the hopper from the discharge port to obtain cow dung biomass fuel pellets.

[0007] Preferably, the hopper is a hollow cylinder with a feeding port at the top for adding cow dung raw material into the hopper; the front end of the pushing component extends into the hopper from one end, and the front end of the pushing component is provided with a disc, and the difference between the outer diameter of the disc and the inner diameter of the hopper is no more than 1 cm; the other end of the hopper is provided with an openable and closable hopper door, and the discharge port is provided on the hopper door.

[0008] Preferably, the discharge port includes several guide pipes, each guide pipe is evenly distributed on the side of the silo door facing outward, and each guide pipe connects the inside and outside of the silo, so that the cow manure raw material inside the silo is pushed out from each guide pipe by the pusher assembly.

[0009] Preferably, the forming device further includes a cutting mechanism for cutting the cow dung biomass fuel extruded from the feed tube to a preset length.

[0010] Preferably, the cutting mechanism includes: a first drive motor, an inverted L-shaped fixing plate, a double-edged blade, a hollow transmission column, and a transmission plate; the first drive motor is fixedly installed on the upper end of the hopper door, and the inverted L-shaped fixing plate is installed on the first drive motor with adjustable bolt spacing; a through hole is provided on the inverted L-shaped fixing plate, a first keyway is provided on the outer surface of the drive shaft of the first drive motor, and a second keyway is provided on the inner surface of the hollow transmission column that meshes with the first keyway; the drive shaft of the first drive motor is inserted into and meshes with one end of the hollow transmission column, the hollow transmission column passes through the through hole, and the other end is movably connected to one end of the transmission plate, and the other end of the transmission plate is slidably connected to the groove in the middle of the double-edged blade; the upper end of the double-edged blade is rotatably connected to the upper end of the inverted L-shaped fixing plate, so that the double-edged blade is driven by the first drive motor to cut back and forth on the end face of the guide tube, cutting the cow dung biomass fuel squeezed out of the guide tube into a preset length.

[0011] Preferably, the molding device further includes a fixed base, on which the hopper is fixedly mounted; a leveling component is provided at the lower end of the fixed base.

[0012] Preferably, the molding device further includes a feeding mechanism, which includes a fixed frame, a feeding hopper, and a screw conveyor assembly; the fixed frame is set on the ground, and the feeding hopper is installed on the upper end of the fixed frame; the inside of the feeding hopper has a funnel-shaped structure; the bottom end of the feeding hopper is connected to one end of the inlet of the screw conveyor assembly, and the outlet of the screw conveyor assembly is set above the feeding inlet, for conveying the cow dung raw material added inside the feeding hopper to the silo.

[0013] Preferably, the molding apparatus further includes a control unit for controlling the start and stop of the drive mechanism, the first drive motor and the screw conveyor assembly, as well as adjusting the operating parameters.

[0014] Preferably, the forming device further includes a receiving component, which is disposed at the lower end of the discharge port and is used to guide the extruded cow dung biomass fuel pellets to the corresponding position.

[0015] Preferably, the driving mechanism is a hydraulic driving mechanism.

[0016] As can be seen from the above technical solution, the forming device for cow dung biomass fuel pellets provided in this utility model embodiment includes a driving mechanism and an extrusion mechanism. The extrusion mechanism further includes a hopper. One end of the hopper is provided with a pushing component, which can slide along the inside of the hopper. The other end of the hopper is provided with a discharge port. The driving mechanism is driven to connect with the pushing component, so that the pushing component can be driven to move in the hopper. By moving towards the discharge port, the cow dung raw material in the hopper can be extruded from the discharge port at the other end, thereby obtaining cow dung biomass fuel pellets. Attached Figure Description

[0017] Figure 1 A schematic diagram of a pelletizing device for cow dung biomass fuel provided in an embodiment of this utility model.

[0018] Figure 2 This is a schematic diagram of an extrusion mechanism provided in an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the extrusion mechanism provided in an embodiment of the present invention from another perspective.

[0020] Figure 4 This is a schematic diagram of a cutting mechanism provided for an embodiment of the present utility model.

[0021] Figure 5 This is a schematic diagram of a feeding mechanism provided in an embodiment of the present utility model.

[0022] In the figure: drive mechanism 10, extrusion mechanism 20, hopper 21, pusher assembly 22, guide pipe 23, feeding port 24, disc 25, hopper door 26, cutting mechanism 30, first drive motor 31, inverted L-shaped fixing plate 32, double blade 33, hollow transmission column 34, transmission plate 35, slide 36, fixed base 40, leveling assembly 50, feeding mechanism 60, fixing frame 61, feeding hopper 62, screw conveyor assembly 63, central control assembly 70, receiving assembly 80. Detailed Implementation

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] like Figures 1-5 As shown, this utility model embodiment provides a forming device for cow dung biomass fuel pellets. The forming device includes a driving mechanism 10 and an extrusion mechanism 20. The extrusion mechanism 20 includes a hopper 21, one end of which is movably provided with a pushing component 22, and the other end of the hopper 21 is provided with a discharge port. The driving mechanism 10 is driven to the pushing component 22 to drive the pushing component 22 to move in the direction of the discharge port within the hopper 21, thereby extruding the cow dung raw material in the hopper 21 from the discharge port to obtain cow dung biomass fuel pellets.

[0025] In this embodiment, fresh cow dung meeting certain moisture requirements can be added to the hopper 21 of the extrusion mechanism 20, and then the drive mechanism 10, which can be a hydraulic mechanism, can be activated. The drive mechanism 10 will then push the pushing component 22 towards the discharge port, thereby squeezing the fresh cow dung added to the hopper 21 towards the discharge port. The dung is then shaped by the discharge port and extruded from it, resulting in cow dung biomass fuel that is easy to dry and burn.

[0026] In one embodiment, the hopper 21 can be a hollow cylinder. The upper end of the hopper 21 is provided with a feeding port 24 for adding cow manure raw materials into the hopper 21. The front end of the pushing component 22 extends into the hopper 21 from one end. The front end of the pushing component 22 is provided with a disc 25, and the difference between the outer diameter of the disc 25 and the inner diameter of the hopper 21 is not greater than 1 cm. The other end of the hopper 21 is provided with an openable and closable hopper door 26, and the discharge port is provided on the hopper door 26.

[0027] In this embodiment, by setting a disc 25 at the front end of the pushing component 22, and ensuring that the difference between the outer diameter of the disc 25 and the inner diameter of the hopper 21 is no more than 1 cm, it is guaranteed that the pushing component 22 can smoothly push inside the hopper 21, while minimizing the possibility of cow dung entering the gap between the outer surface of the disc 25 and the inner surface of the hopper 21, and then entering the rear end of the disc 25, affecting subsequent pushing. Furthermore, an openable and closable door 26 is provided at the other end of the hopper 21, with the discharge port located on the door 26. During the molding operation, the door 26 can be locked. When cleaning the discharge port and the inside of the hopper 21, the door 26 can be opened to allow workers to inspect the inside of the hopper 21 or to clean the discharge port and the inside of the hopper 21. It should be noted that the hopper should be narrowed near the door, meaning that the inner diameter of the hopper near the door is smaller than the inner diameter at the front, so that the cow dung material in the hopper can be better squeezed out from the discharge port.

[0028] In order to prepare cow dung biomass fuel that is easy to dry and burn, and to improve the preparation efficiency of cow dung biomass fuel, it is considered to set the discharge port as several guide pipes 23. Each guide pipe 23 is evenly distributed on the side of the silo door 26 facing outward, and each guide pipe 23 is connected to the inside and outside of the silo 21, so that the cow dung raw material inside the silo 21 is pushed out from each guide pipe 23 by the pusher component 22.

[0029] In this embodiment, the guide tube 23 can be a tubular structure of a preset length, and its shape can be cylindrical, prismatic, etc. The guide tube 23 should be detachably installed on the hopper door 26 to facilitate replacement with guide tubes 23 of different structures and lengths as needed. For example, the guide tube 23 can be provided with external threads, and the through holes on the hopper door 26 connecting to the interior of the hopper 21 can be provided with internal threads. The guide tubes 23 can be installed at the through holes on the hopper door 26 through threaded engagement. Furthermore, the guide tubes 23 should be evenly distributed on the hopper door 26.

[0030] In practical applications, it is often necessary to use cow dung biomass fuel of fixed length. To ensure the consistency of the specifications of the prepared cow dung biomass fuel pellets, in one embodiment, the cow dung biomass fuel pellet forming device may further include a cutting mechanism 30 for cutting the cow dung biomass fuel extruded from the feed pipe 23 to a preset length. Specifically, the cutting mechanism 30 may further include: a first drive motor 31, an inverted L-shaped fixing plate 32, a double-edged blade 33, a hollow transmission column 34, and a transmission plate 35; the first drive motor 31 is fixedly installed on the upper end of the door 26, and the inverted L-shaped fixing plate 32 is installed on the first drive motor 31 by means of adjustable bolt spacing; the inverted L-shaped fixing plate 32 has a through hole, the outer surface of the drive shaft of the first drive motor 31 is provided with a first keyway, and the inner surface of the hollow transmission column 34 is provided with a second keyway that meshes with the first keyway; the first drive... The drive shaft of the motor 31 is inserted into and meshes with one end of the hollow transmission column 34. The hollow transmission column 34 passes through the through hole and is movably connected to one end of the transmission plate 35. The other end of the transmission plate 35 is slidably connected to the groove 36 in the middle of the double-edged blade 33. The upper end of the double-edged blade 33 is rotatably connected to the upper end of the inverted L-shaped fixing plate 32 so that the double-edged blade 33 can be driven by the first drive motor 31 to cut back and forth on the end face of the guide tube 23, cutting the cow dung biomass fuel squeezed out from the guide tube 23 into a preset length.

[0031] In this embodiment, the drive shaft of the first drive motor 31 has a first keyway, and the hollow transmission column 34 has a second keyway inside. The first drive motor 31 and the hollow transmission column 34 are connected by keyway meshing, and the other end of the hollow transmission column 34 is movably connected to a transmission plate 35. The other end of the transmission plate 35 is slidably connected to a groove in the middle of the double-edged blade 33. Thus, when the first drive motor 31 rotates, it drives the hollow transmission column 34 to rotate. Due to the keyway, the hollow transmission column 34 causes the transmission plate 35 to make a circular motion around the hollow transmission column 34 as an axis, thereby pushing the double-edged blade 33 to make a pendulum motion, thereby cutting the cow dung biomass fuel extruded from the feed pipe 23.

[0032] Furthermore, since the guide tube 23 is replaceable and has different lengths, in order to accommodate guide tubes 23 of different lengths, this embodiment considers mounting an inverted L-shaped fixing plate 32 on the first drive motor 31 with bolts in an adjustable spacing manner. For example, the first drive motor 31 has a threaded hole with internal threads, and the inverted L-shaped fixing plate 32 has a through hole. The bolt with external threads is passed through the through hole and then connected to the threaded hole on the first drive motor 31. By adjusting the length of the threaded engagement, the distance between the inverted L-shaped fixing plate 32 and the first drive motor 31 can be adjusted, thereby adjusting the position of the double-edged blade 33 to accommodate guide tubes 23 of different lengths.

[0033] Furthermore, the molding device also includes a fixed base 40, on which the hopper 21 is fixedly mounted; a leveling component 50 is provided at the lower end of the fixed base 40 to level the molding device according to the specific installation environment.

[0034] Because the molding device provided in this embodiment has a certain height, it increases the workload for workers when adding fresh cow dung into the hopper 21 and affects the feeding efficiency. Using excavators or other equipment is difficult to operate due to the overall structure of the device, and the feeding port 24 is limited by the volume of the hopper 21, making it difficult to make it very large. Adding cow dung into the hopper 21 with excavators or other equipment is often difficult to do accurately and without leakage. Therefore, in one embodiment, this solution considers further providing a feeding mechanism 60, which includes a fixed frame 61, a feeding hopper 62, and a screw conveyor assembly 63. The fixed frame 61 is set on the ground, and the feeding hopper 62 is installed on the upper end of the fixed frame 61. The inside of the feeding hopper 62 has a funnel-shaped structure. The bottom end of the feeding hopper 62 is connected to one end of the inlet of the screw conveyor assembly 63, and the outlet of the screw conveyor assembly 63 is located above the feeding port 24, used to transport the cow dung raw material added inside the feeding hopper 62 into the hopper 21.

[0035] In this embodiment, the opening of the feeding hopper 62 can be made relatively large to facilitate the adjustment of the cow manure raw material using equipment such as excavators. Furthermore, the feeding hopper 62 can be set low to facilitate feeding operations by workers and equipment, reducing labor input and improving work efficiency. In addition, this solution considers using a screw conveyor assembly 63 to transport the cow manure raw material into the silo 21. This saves labor and improves work efficiency; moreover, the screw conveyor assembly 63, during the transport of the cow manure to the silo 21, agitates the raw material through rotation, increasing its viscosity and facilitating the subsequent formation of cow manure biomass fuel pellets. Moreover, the screw conveyor also accelerates the evaporation of moisture from the cow manure raw material, thus shortening the drying time for the subsequent cow manure biomass fuel pellets. The screw conveyor assembly 63 is a screw conveyor.

[0036] In one embodiment, to facilitate control of the various driving components of the molding device, the molding device may further include a central control assembly 70. This assembly 70 is used to control the start and stop of the drive mechanism 10, the first drive motor 31, and the screw conveyor assembly 63, as well as to adjust operating parameters. For example, the central control assembly 70 can control the start and stop of the hydraulic drive mechanism 10, its movement speed, etc.; it can control the start and stop of the screw conveyor assembly 63 and its movement speed; and it can control the start and stop of the first drive motor 31, its speed, and its start / stop cycle, etc., to coordinate with the pushing speed of the drive mechanism 10 and achieve the cutting of cow dung biomass pellets of the target length.

[0037] Furthermore, to facilitate the collection of the prepared cow dung biomass fuel pellets, in one embodiment, a receiving assembly 80 can be provided at the lower end of the discharge port to guide the extruded cow dung biomass fuel pellets to the appropriate location, such as onto a conveyor belt.

[0038] In the implementation of the cow dung biomass fuel pellet forming device provided by this utility model, firstly, a guide pipe 23 of appropriate length is installed according to requirements, and the parameters of the first drive motor 31 and the drive mechanism 10 are set. Then, the screw conveyor assembly 63 is started, and workers add cow dung raw material into the feeding hopper 62 by manual labor or excavators. After sufficient cow dung raw material is added into the hopper 21, the screw conveyor assembly 63 is closed; the drive mechanism 10 is started to work, compressing the cow dung raw material in the hopper 21. After the cow dung is compressed into shape, it is extruded from the guide pipe 23. At the same time, the cutting mechanism 30 works periodically due to the parameter settings of the first drive motor 31 to cut the extruded cow dung raw material, thereby obtaining cow dung biomass fuel pellets of the preset length.

[0039] The modules or units in the device of this utility model embodiment can be merged, divided, and deleted according to actual needs. The above-disclosed embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of this utility model. Those skilled in the art can understand that implementing all or part of the processes of the above embodiments and making equivalent changes according to the claims of this utility model still fall within the scope of this utility model.

Claims

1. A device for forming pellets of cattle dung biomass fuel, characterized in that, The forming device includes a driving mechanism and an extrusion mechanism; the extrusion mechanism includes a hopper, one end of which is movably provided with a pushing component, and the other end of which is provided with a discharge port; the driving mechanism is driven to the pushing component to drive the pushing component to move in the hopper toward the discharge port, so as to extrude the cow dung raw material in the hopper from the discharge port to obtain cow dung biomass fuel pellets; The hopper is a hollow cylinder with a feeding port at the top for adding cow dung. The front end of the pushing component extends into the hopper from one end. The front end of the pushing component has a disc, and the difference between the outer diameter of the disc and the inner diameter of the hopper is no more than 1 cm. The other end of the hopper has an openable and closable door, and the discharge port is located on the door. The discharge port includes several guide pipes, which are evenly distributed on the outer side of the door. Each guide pipe connects the inside and outside of the hopper, so that the cow dung inside the hopper is pushed out of the guide pipes by the pushing component. The forming device also includes a cutting mechanism for cutting the cow dung biomass fuel extruded from the feed tube to a preset length. The cutting mechanism includes a first drive motor, an inverted L-shaped fixing plate, a double-edged blade, a hollow transmission column, and a transmission plate. The first drive motor is fixedly installed on the upper end of the hopper door, and the inverted L-shaped fixing plate is installed on the first drive motor with adjustable bolt spacing. A through hole is provided on the inverted L-shaped fixing plate, and a first keyway is provided on the outer surface of the drive shaft of the first drive motor. A second keyway is provided on the inner surface of the hollow transmission column, which meshes with the first keyway. The drive shaft of the first drive motor is inserted into and meshes with one end of the hollow transmission column. The hollow transmission column passes through the through hole, and its other end is movably connected to one end of the transmission plate. The other end of the transmission plate is slidably connected to the groove in the middle of the double-edged blade. The upper end of the double-edged blade is rotatably connected to the upper end of the inverted L-shaped fixing plate, so that the double-edged blade can be driven by the first drive motor to cut back and forth on the end face of the feed tube, cutting the cow dung biomass fuel extruded from the feed tube to a preset length.

2. The cattle dung biomass fuel pellet forming apparatus as claimed in claim 1, wherein, The molding device also includes a fixed base, on which the hopper is fixedly mounted; a leveling component is provided at the lower end of the fixed base.

3. The cattle dung biomass fuel pellet forming apparatus as claimed in claim 1, wherein, The molding device also includes a feeding mechanism, which includes a fixed frame, a feeding hopper, and a screw conveyor assembly. The fixed frame is set on the ground, and the feeding hopper is installed on the upper end of the fixed frame. The inside of the feeding hopper has a funnel-shaped structure. The bottom end of the feeding hopper is connected to one end of the inlet of the screw conveyor assembly, and the outlet of the screw conveyor assembly is set above the feeding inlet, for conveying the cow dung raw material added inside the feeding hopper to the silo.

4. The cattle dung biomass fuel pellet forming apparatus as claimed in claim 3, wherein, The molding apparatus also includes a central control unit, which controls the start and stop of the drive mechanism, the first drive motor and the screw conveyor assembly, as well as adjusts the working parameters.

5. The cattle dung biomass fuel pellet forming apparatus as claimed in claim 1, wherein, The forming device also includes a receiving assembly located at the lower end of the discharge port, which is used to guide the extruded cow dung biomass fuel pellets to the corresponding position.

6. The cattle dung biomass fuel pellet forming apparatus as claimed in claim 1, wherein, The driving mechanism is a hydraulic driving mechanism. The driving mechanism is a hydraulic driving mechanism.

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