A granule mixing and screening machine

Abstract

The utility model discloses a granule mixes screening machine belongs to mixed processing equipment technical field, including the casing and the drum, still including the bucket, the pivot, the feed port, the discharge gate, the driving motor, the observation port and the mixer front baffle, the front of casing is provided with the observation port, the feed port and the discharge gate all are fixedly connected on the mixer front baffle, the driving motor is fixed in the external lateral wall of casing and is fixedly connected with the one end of pivot, the pivot drives the drum rotation, the drum rotation is installed in the bucket, the drum is by the discharge guide plate, the mixed guide plate, the drum front support frame, the drum rear support plate and the drum screen shell, the drum counterclockwise rotation realizes the mixed screening, the drum clockwise rotation realizes the discharge screening, the utility model possesses the technical effect of mixed screening two in one, the dustproof effect is good, the screen piece is easy to clean, reduces the particle breakage rate.

Description

Technical Field

[0001] This utility model belongs to the technical field of mixing and processing equipment, and in particular relates to a granular material mixing and screening machine. Background Technology

[0002] In the processing of pelleted materials (such as beans), mixing equipment is often required to mix the pellets, and small impurities and fine particles generated during mixing must be removed by sieving. Currently, the commonly used drum mixers have several shortcomings: Existing drum mixers use external friction wheels to drive the drum, which is placed only on the friction wheel and cannot be completely enclosed by a protective cover. This poses a safety hazard to operators when the drum rotates. The feed inlet is located at the center axis of the drum, resulting in a very low equipment loading rate, which can only reach a maximum of 40%. This makes the overall size of the equipment too large, consumes more materials, and increases the manufacturing cost. Although some equipment has the drum completely enclosed inside the equipment shell, which can prevent dust from spreading to the operating environment during operation, it still cannot take into account both mixing and screening functions. Furthermore, there are problems such as inconvenient cleaning after the screen is clogged and poor dust prevention effect.

[0003] The aforementioned defects in the existing technology result in high equipment investment costs and large space requirements during pellet processing. The breakage rate of easily broken pellets such as beans is relatively high, and dust is easily generated during equipment operation, affecting the operating environment and the quality of pellet processing, thus failing to meet actual production needs. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a granular material mixing and screening machine, which has the advantages of combining mixing and screening, good dust prevention, easy screen cleaning, and reduced particle breakage rate. It solves the problems of existing drum mixers, such as high safety hazards, low loading rate, high cost, inability to balance mixing and screening, poor dust prevention, difficult screen cleaning, and easy high particle breakage rate.

[0005] This utility model is implemented as follows: a granular material mixing and screening machine includes a casing and a rotating drum, as well as a barrel, a rotating shaft, a feed inlet, a discharge outlet, a drive motor, an observation port, and a front baffle of the mixer. The front of the casing is provided with an observation port. The feed inlet and discharge outlet are both fixedly connected to the front baffle of the mixer. The drive motor is fixed to the outer side wall of the casing and fixedly connected to one end of the rotating shaft. The rotating shaft drives the rotating drum to rotate. The rotating drum is rotatably installed in the barrel. The rotating drum is composed of a discharge guide plate, a mixing guide plate, a front support frame of the rotating drum, a rear support plate of the rotating drum, and a screen shell of the rotating drum. The rotating drum rotates counterclockwise to achieve mixing and screening, and rotates clockwise to achieve discharge and screening.

[0006] As a preferred embodiment of this invention, a cylinder for controlling the opening and closing of the discharge gate is provided at the discharge port.

[0007] This setting enables automated and precise control of the discharge gate, improving the continuity and efficiency of equipment operation.

[0008] As a preferred embodiment of this utility model, a small impurity discharge hopper is fixedly installed at the bottom of the machine casing. When the drum rotates clockwise, the material flows to the discharge port through the discharge guide plate and is discharged. Small impurities fall into the small impurity discharge hopper through the screen holes on the drum screen shell.

[0009] This setup enables simultaneous material discharge and sieving: as the material is discharged from the outlet, the rotary drum screen can simultaneously perform secondary sieving, separating small impurities from the material and dropping them into the small impurity discharge hopper. This eliminates the need for a separate sieving process, reducing equipment space and processing time. Simultaneously, the small impurity discharge hopper collects impurities, preventing them from scattering around the equipment or mixing into the finished product. This ensures a clean operating environment and improves the cleanliness of the finished pellets, meeting the hygiene requirements for food-grade pellet processing.

[0010] As a preferred embodiment of this utility model, when the drum rotates counterclockwise, the discharge guide plate pushes the material to flow backward, and the material is tumbled up by the mixing guide plate to achieve mixing. Small impurities and broken beans fall into the small impurity discharge hopper through the screen holes on the drum screen shell.

[0011] This setup achieves an integrated function of mixing and screening: when the drum rotates counterclockwise, the thrust of the discharge guide plate and the turning action of the mixing guide plate combine to allow the material to turn in multiple directions without dead angles within the drum, ensuring uniform mixing of granules from different batches and in different states, thus solving the problem of insufficient mixing in traditional mixers; at the same time, broken beans and small impurities generated during the mixing process can be separated in real time through the screen holes of the drum screen shell to the small impurity discharge hopper, effectively reducing the content of broken particles in the finished product and improving the overall quality of the granules, especially suitable for processing easily broken beans.

[0012] As a preferred embodiment of this utility model, the front baffle of the mixer is used not only to fix the inlet and outlet but also to seal the material inside the drum to prevent the material from falling to the outside of the drum. The front baffle of the mixer is made of food-grade PTFE sheet.

[0013] This design offers a triple advantage: stability, sealing, and wear resistance. Firstly, the front baffle securely holds the inlet and outlet, preventing loosening of the feeding and discharging components during operation and ensuring the stability of the material flow path. Secondly, the food-grade PTFE sheet boasts excellent sealing performance, completely preventing material and dust from leaking out through the gap between the drum and the front baffle, solving the material waste and dust problems caused by poor sealing in traditional equipment. Simultaneously, the PTFE sheet has an extremely low coefficient of friction and excellent wear resistance, significantly reducing wear between the drum and the front baffle during relative movement, extending the front baffle's lifespan, avoiding equipment downtime due to frequent component replacements, reducing subsequent maintenance costs, and ensuring that the food-grade material meets food safety standards and will not contaminate the granular material.

[0014] As a preferred embodiment of this utility model, the top of the housing is provided with an air intake, which is used to connect to an air intake pipe. When the equipment is running, the dust generated will be carried away by the air intake.

[0015] With this setup, after the air inlet is connected to the air intake pipe, a micro-negative pressure environment can be created inside the equipment during operation. Dust generated during mixing and sieving will be sucked into the air intake pipe in real time, preventing it from spreading from the gaps in the equipment to the operating environment. This completely solves the problem of high dust levels and environmental pollution caused by traditional equipment, protecting the respiratory health of operators. At the same time, the micro-negative pressure environment can also help to adsorb the fine impurities screened out by the rotary drum screen shell to the small impurity discharge hopper, reducing the residue of impurities inside the equipment, further improving the cleanliness of the equipment and reducing the difficulty of subsequent cleaning.

[0016] As a preferred embodiment of this utility model, the observation port is equipped with an openable protective plate. When the observation sieve is blocked, the protective plate can be opened to clean the sieve.

[0017] This setup enables convenient monitoring and rapid cleaning of the screen plates: operators can observe the working status of the screen plates in the rotating drum screen shell in real time through the observation port, promptly detect screen plate blockage, and avoid problems such as decreased screening efficiency and uneven material mixing caused by screen plate blockage; while the openable protective plate makes the cleaning operation more convenient, without disassembling the equipment shell, greatly shortening the cleaning time.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model realizes the combination of mixing and sieving functions, eliminating the need to set up separate mixing and sieving equipment, greatly reducing equipment investment costs, and at the same time reducing the overall size of the equipment and the space occupied by the project; The mixing and screening processes are achieved by rotating the drum in both forward and reverse directions. The front baffle of the mixer is sealed with food-grade PTFE sheet, which reduces the collision and friction of materials in the equipment and lowers the breakage rate of easily broken granular materials such as beans. After connecting the suction pipe through the suction port, the equipment can maintain a slight negative pressure during operation. Small impurities discharged during operation are collected through the small impurity discharge hopper, and dust is sucked away through the suction pipe, preventing small impurities and dust from overflowing and effectively improving the operating environment. The observation port and the openable protective plate allow operators to easily detect and quickly clear any screen blockages, ensuring continuous and stable operation of the equipment. This device can not only clean up small impurities and fragments on the material itself, but also clean up the fragments generated during the mixing process, making the finished material cleaner and improving the processing quality of granular materials. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the external structure provided in an embodiment of the present utility model; Figure 2 This is a side view structural diagram provided in an embodiment of the present utility model; Figure 3 This is a cross-sectional structural schematic diagram provided in an embodiment of the present utility model; Figure 4 This is a side view structural diagram of the wheel hub body provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the front view structure of the wheel hub body provided in this embodiment of the utility model; Figure 6 This is a top view structural diagram provided in an embodiment of the present invention.

[0020] In the diagram: 1. Casing; 2. Barrel; 3. Rotating shaft; 4. Front baffle of mixer; 5. Discharge port; 9. Feed port; 10. Small waste discharge hopper; 11. Observation port; 12. Air inlet; 13. Drive motor; 601. Discharge guide plate; 602. Mixing guide plate; 603. Front support frame of the drum; 604. Rear support plate of the drum; 605. Screen shell of the drum. Detailed Implementation

[0021] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0022] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0023] refer to Figures 1 to 6As shown in the figure, the granular material mixing and screening machine provided by this utility model embodiment includes a casing 1 and a rotating drum, as well as a barrel body 2, a rotating shaft 3, a feed inlet 9, a discharge outlet 5, a drive motor 13, an observation port 11, and a mixer front baffle 4. The front of the casing 1 is provided with an observation port 11. The feed inlet 9 and the discharge outlet 5 are both fixedly connected to the mixer front baffle 4. The drive motor 13 is fixed to the outer side wall of the casing 1 and fixedly connected to one end of the rotating shaft 3. The rotating shaft 3 drives the rotating drum to rotate. The rotating drum is rotatably installed inside the barrel body 2. The rotating drum is composed of a discharge guide plate 601, a mixing guide plate 602, a front support frame 603, a rear support plate 604, and a rotating drum screen shell 605. The rotating drum rotates counterclockwise to achieve mixing and screening, and rotates clockwise to achieve discharge and screening.

[0024] Specifically, a cylinder is installed at the discharge port 5 to control the opening and closing of the discharge gate.

[0025] By adopting the above solution, the discharge gate can be automatically and precisely controlled, improving the continuity and efficiency of equipment operation.

[0026] Specifically, a small impurity discharge hopper 10 is fixedly installed at the bottom of the casing 1. When the drum rotates clockwise, the material flows to the discharge port 5 through the discharge guide plate 601 and is discharged. Small impurities fall into the small impurity discharge hopper 10 through the screen holes on the drum screen shell 605.

[0027] By adopting the above solution, the discharge and screening of impurities are carried out simultaneously: during the process of material discharge from the discharge port 5, the rotary drum screen shell 605 can simultaneously perform secondary screening of the material, separating the small impurities remaining in the material and letting them fall into the small impurity discharge hopper 10. There is no need to add a separate screening process, which reduces the space occupied by the equipment and the processing time. At the same time, the small impurity discharge hopper 10 can collect impurities in a concentrated manner, preventing impurities from scattering around the equipment or mixing into the finished material. This not only ensures the cleanliness of the operating environment, but also improves the cleanliness of the finished granules, meeting the hygiene requirements for processing food-grade granules.

[0028] Specifically, when the drum rotates counterclockwise, the discharge guide plate 601 pushes the material to flow backward, and the material is tumbled by the mixing guide plate 602 to achieve mixing. Small impurities and broken beans fall into the small impurity discharge hopper 10 through the sieve holes on the drum screen shell 605.

[0029] The above solution achieves an integrated function of mixing and screening: when the drum rotates counterclockwise, the thrust of the discharge guide plate 601 and the turning action of the mixing guide plate 602 combine to allow the material to turn in multiple directions without dead angles within the drum, ensuring uniform mixing of granules of different batches and states, thus solving the problem of insufficient mixing in traditional mixers; at the same time, broken beans and small impurities generated during the mixing process can be separated in real time through the sieve holes of the drum screen shell 605 to the small impurity discharge hopper 10, effectively reducing the content of broken particles in the finished product and improving the overall quality of the granules, which is especially suitable for processing easily broken beans.

[0030] Specifically, the front baffle 4 of the mixer is used not only to fix the feed inlet 9 and the discharge outlet 5, but also to seal the material inside the drum to prevent the material from falling to the outside of the drum. The front baffle 4 of the mixer is made of food-grade PTFE sheet.

[0031] The above solution offers a triple advantage in terms of fixation, sealing, and wear resistance: Firstly, the front baffle can stably fix the inlet 9 and outlet 5, preventing the inlet and outlet components from loosening during equipment operation and ensuring the stability of the material inlet and outlet channels; secondly, the food-grade PTFE sheet has excellent sealing performance, which can completely prevent material and dust inside the drum from leaking out through the gap between the drum and the front baffle, solving the problems of material waste and dust caused by poor sealing in traditional equipment; at the same time, the PTFE sheet has an extremely low coefficient of friction and excellent wear resistance, which can significantly reduce wear between the drum and the front baffle during relative movement, extend the service life of the front baffle, avoid equipment downtime caused by frequent replacement of worn parts, reduce later maintenance costs, and the food-grade material meets food safety standards and will not contaminate the granular material.

[0032] Specifically, the top of the housing 1 is provided with an air intake 12, which is used to connect to the air intake pipe. When the equipment is running, the dust generated will be carried away by the air intake.

[0033] By adopting the above solution, after the air inlet 12 is connected to the air inlet pipe, a micro-negative pressure environment can be formed inside the equipment during operation. The dust generated during the mixing and sieving process will be sucked into the air inlet pipe in real time and will not spread from the gaps in the equipment to the operating environment. This completely solves the problem of large dust and pollution of the operating environment during the operation of traditional equipment, and protects the respiratory health of operators. At the same time, the micro-negative pressure environment can also help to adsorb the fine impurities screened out by the rotary drum screen shell 605 to the small impurity discharge hopper 10, reduce the residue of impurities inside the equipment, further improve the cleanliness of the equipment, and reduce the difficulty of subsequent cleaning.

[0034] Specifically, the observation port 11 is equipped with an openable protective plate. When the observation sieve is blocked, the protective plate can be opened to clean the sieve.

[0035] The above solution enables convenient monitoring and rapid cleaning of the screen plates: operators can observe the working status of the screen plates in the rotary drum screen shell 605 in real time through the observation port 11, promptly detect screen plate blockage, and avoid problems such as reduced screening efficiency and uneven material mixing caused by screen plate blockage; while the openable protective plate makes the cleaning operation more convenient, without disassembling the equipment shell, which greatly shortens the cleaning time.

[0036] The working principle of this utility model: During use, the material enters the drum through the feed inlet 9 fixed to the front baffle 4 of the mixer; when the drum rotates counterclockwise, the discharge guide plate 601 pushes the material backward, and the mixing guide plate 602 turns the material to complete the mixing. At the same time, small impurities and broken beans fall into the small impurity discharge hopper 10 at the bottom through the drum screen shell 605; when the drum rotates clockwise, the discharge guide plate 601 guides the material to the discharge port 5 controlled by the cylinder for discharge, and the secondary screening of impurities is completed simultaneously; the suction port 12 at the top of the machine casing 1 forms a slight negative pressure to suck away dust through the pipeline, and the observation port 11 can monitor the screen. When blocked, the protective plate can be opened for cleaning.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A granular material mixing and screening machine, comprising a casing (1) and a rotating drum, characterized in that: It also includes a barrel body (2), a rotating shaft (3), a feed inlet (9), a discharge outlet (5), a drive motor (13), an observation port (11), and a mixer front baffle (4). The front of the casing (1) is provided with an observation port (11). The feed inlet (9) and the discharge outlet (5) are both fixedly connected to the mixer front baffle (4). The drive motor (13) is fixed to the outer side wall of the casing (1) and fixedly connected to one end of the rotating shaft (3). The rotating shaft (3) drives the drum to rotate. The drum is rotatably installed inside the barrel body (2). The drum is composed of a discharge guide plate (601), a mixing guide plate (602), a front support frame (603), a rear support plate (604), and a drum screen shell (605). The drum rotates counterclockwise to achieve mixing and screening, and the drum rotates clockwise to achieve discharge and screening.

2. The granular material mixing and screening machine as described in claim 1, characterized in that: A cylinder is provided at the discharge port (5) to control the opening and closing of the discharge gate.

3. The granular material mixing and screening machine as described in claim 1, characterized in that: The bottom of the casing (1) is fixedly installed with a small impurity discharge hopper (10). When the drum rotates clockwise, the material flows through the discharge guide plate (601) to the discharge port (5) and is discharged. Small impurities fall into the small impurity discharge hopper (10) through the screen holes on the drum screen shell (605).

4. The granular material mixing and screening machine as described in claim 3, characterized in that: When the drum rotates counterclockwise, the discharge guide plate (601) pushes the material to flow backward. The material is turned up by the mixing guide plate (602) to achieve mixing. Small impurities and broken beans fall into the small impurity discharge hopper (10) through the screen holes on the drum screen shell (605).

5. The granular material mixing and screening machine as described in claim 1, characterized in that: The front baffle (4) of the mixer is used not only to fix the feed inlet (9) and the discharge outlet (5) but also to seal the material inside the drum to prevent the material from falling to the outside of the drum. The front baffle (4) of the mixer is made of food-grade PTFE sheet.

6. The granular material mixing and screening machine as described in claim 1, characterized in that: The top of the housing (1) is provided with an air inlet (12), which is used to connect to the air inlet pipe. When the equipment is running, the dust generated will be carried away by the air inlet.

7. The granular material mixing and screening machine as described in claim 1, characterized in that: The observation port (11) is equipped with an openable protective plate. When the observation sieve is blocked, the protective plate can be opened to clean the sieve.

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