Premix reduction batch system

Abstract

The utility model discloses a premix reduction formula batching system, including support, a plurality of bunker units, the middle part of a plurality of bunker units is provided with the premix cylinder of support connection, and the top of premix cylinder is provided with a plurality of feed inlet, and each feed inlet is connected with the discharge pipe of the screw conveyor of corresponding bunker unit through the feed pipeline, the inside coaxial of premix cylinder is provided with trace feed cylinder, and the upper end of trace feed cylinder is fixedly connected with the top board of premix cylinder, and the lower end is connected with the discharge pipe, is provided with the lifting cylinder in premix cylinder, and the lateral wall of lifting cylinder is connected with the inner wall of premix cylinder through the support rod, and premix cylinder is provided with the stirring shaft of coaxial arrangement in premix cylinder, and premix cylinder top sets up driving arrangement, is provided with first stirring vane, first helical blade, second helical blade on the stirring shaft. The utility model can guarantee batching accuracy and mixing evenness simultaneously, and the premix effect is good.

Description

Technical Field

[0001] This utility model relates to the field of feed processing equipment technology, and in particular to a premixed feed reduction batching system. Background Technology

[0002] In chicken feed production, premix formulation is a crucial process. Premixes are products made by uniformly mixing various trace components (such as vitamins, minerals, and amino acids) with a large amount of formulated feed (such as corn flour and soybean meal) in a specific ratio. The quality of premixes directly affects the nutritional balance of subsequent compound feeds and the animal's growth performance.

[0003] The existing premix batching systems mainly have the following technical problems: (1) Poor mixing uniformity: the trace components are unevenly distributed in a large amount of formula, and local concentrations are easily too high or too low. This is because the trace components and the formula have large differences in physical properties, and traditional mixing equipment is difficult to achieve sufficient dispersion. (2) Insufficient batching accuracy: the traditional incremental batching method has cumulative errors, especially in the batching process of trace components, where it is difficult to guarantee the precise control of small doses. The feed premix batching systems recorded in the existing literature use multiple silos and screw conveyors for batching, but they are still insufficient in terms of mixing uniformity. The mixing mechanism is relatively simple, relying only on conventional stirring blades for mixing, which has limited effect on the dispersion of trace components.

[0004] Therefore, there is an urgent need to develop a premix batching system that can simultaneously ensure batching accuracy and mixing uniformity. Utility Model Content

[0005] This invention provides a premixed material reduction batching system, which solves the technical problems of uneven mixing and insufficient batching accuracy in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A premixed feed reduction batching system includes a support frame with multiple silo units mounted on it. Each silo unit includes a silo and a screw conveyor, with the inlet of the screw conveyor sealed to the outlet at the bottom of the silo. A weighing sensor assembly is installed below each silo unit. A premixing cylinder connected to the support frame is located in the middle of the multiple silo units, with multiple inlets at the top of the premixing cylinder. Each inlet is connected to the outlet pipe of the corresponding silo unit's screw conveyor via an inlet pipe. A micro-feed cylinder is coaxially mounted inside the premixing cylinder, with its upper end connected to the top of the premixing cylinder. The plate is fixedly connected, and the lower end has a conical structure and is connected to a discharge pipe; a lifting cylinder is set below the micro feed cylinder inside the premix cylinder, and the side wall of the lifting cylinder is fixedly connected to the inner wall of the premix cylinder through a support rod; a stirring shaft is coaxially set inside the premix cylinder, and the upper end of the stirring shaft is connected to a drive device set at the top of the premix cylinder; the stirring shaft passes through the micro feed cylinder and the lifting cylinder in sequence; wherein, the stirring shaft section inside the micro feed cylinder is equipped with a first stirring blade, the stirring shaft section inside the discharge pipe is equipped with a first spiral blade, and the stirring shaft section inside the lifting cylinder is equipped with a second spiral blade.

[0007] Furthermore, a conical material distribution plate is fixedly installed on the stirring shaft located below the lifting cylinder, and an outwardly extending boss is provided on the side of the conical material distribution plate.

[0008] Furthermore, the bottom outlet of the premixing cylinder is connected to a horizontally positioned screw conveyor.

[0009] Furthermore, the number of silo units is six, of which the discharge pipes of the screw conveyors of at least two silo units are connected to the inlet of the micro-feed cylinder through the feed pipes, and the discharge pipes of the screw conveyors of the remaining silo units are connected to the inlet of the premix cylinder through the feed pipes.

[0010] Furthermore, the feed line includes a feed pipe and a flexible hose.

[0011] Furthermore, each weighing sensor assembly and each screw conveyor is electrically connected to the control system.

[0012] The beneficial effects of this utility model are: 1. This utility model achieves stepwise mixing of trace components and a large quantity of formulated feed by setting up a micro-feeding cylinder and an elevator cylinder. The trace components are first initially mixed in the micro-feeding cylinder, then quantitatively discharged through the first spiral blades, and uniformly dispersed into the large quantity of formulated feed under the action of the conical dispersing disc. Finally, forced circulation mixing is carried out in the elevator cylinder to ensure the uniformity of mixing. The protrusion structure on the side of the conical dispersing disc can effectively disperse the material flow, prevent agglomeration, and further improve the dispersion effect.

[0013] 2. This invention employs a weight-reduction weighing principle, with each hopper unit weighed independently, avoiding cumulative errors and making it particularly suitable for precise dispensing of trace components. The first spiral blade not only serves a conveying function but also controls the discharge speed of trace components, achieving accurate measurement.

[0014] 3. This utility model is automatically controlled by a control system, automating the entire process from ingredient preparation and mixing to discharge, thus reducing the impact of human factors on product quality. Each actuator is electrically connected to the control system, achieving precise process control.

[0015] 4. This utility model adopts a sealed connection, and each silo unit is independent, avoiding cross-contamination between materials. This results in less material residue and facilitates cleaning.

[0016] 5. This utility model allows for simultaneous reduction of material intake and mixing, shortening the production cycle. The horizontally positioned screw conveyor enables continuous material discharge, improving production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of a premixed material reduction batching system proposed in this utility model; Figure 2 This is a top view schematic diagram of the overall structure of a premixed material reduction batching system proposed in this utility model; Figure 3 This is a top view schematic diagram of the premixing cylinder structure of a premixing material reduction batching system proposed in this utility model; Figure 4 Appendix to this utility model Figure 3 AA sectional view; Figure 5 This is a schematic diagram of the internal structure of the premixing cylinder of a premixing material reduction batching system proposed in this utility model.

[0019] In the diagram: 1. Support frame; 2. Hopper; 3. Screw conveyor; 4. Premixing cylinder; 5. Feed pipe; 6. Flexible hose; 7. Weighing sensor assembly; 16. Micro-feed cylinder; 17. Discharge pipe; 18. Lifting cylinder; 19. Stirring shaft; 20. Drive unit; 21. First stirring blade; 22. First spiral blade; 23. Second spiral blade; 24. Conical material distribution plate; 25. Boss; 26. Screw conveyor auger. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0021] Example 1: See Figure 1-5 ,like Figure 1 As shown, this utility model provides a premixed material reduction batching system, including a support frame 1 with six hopper units mounted on it. Each hopper unit includes a hopper 2 and a screw conveyor 3, with the inlet of the screw conveyor 3 sealed to the outlet at the bottom of the hopper 2. A weighing sensor assembly 7 is installed below each hopper unit for reducing the weight of the material within that hopper unit.

[0022] See Figure 2 A premixing cylinder 4, fixedly connected to the support 1, is installed in the middle of multiple silo units. The top of the premixing cylinder 4 is provided with multiple feed ports, and each feed port is connected to the discharge pipe of the screw conveyor 3 of the corresponding silo unit through a feed pipe. The feed pipe includes a feed pipe 5 and a flexible hose 6, which can compensate for minor displacements during equipment operation.

[0023] like Figure 4 As shown, a micro-feed cylinder 16 is coaxially arranged inside the premixing cylinder 4. The upper end of the micro-feed cylinder 16 is fixedly connected to the top plate of the premixing cylinder 4, and the lower end of the micro-feed cylinder 16 has a conical structure and is connected to a discharge pipe 17. A lifting cylinder 18 is arranged below the micro-feed cylinder 16 inside the premixing cylinder 4. The side wall of the lifting cylinder 18 is fixedly connected to the inner wall of the premixing cylinder 4 by a support rod. (See [reference]). Figure 4 , 5 .

[0024] Please see Figure 4 , 5A stirring shaft 19 is coaxially mounted inside the premixing cylinder 4. The upper end of the stirring shaft 19 is connected to a drive device 20 fixedly mounted on the top of the premixing cylinder 4. The drive device 20 includes a motor, a reducer, and a motor mount. The motor mount is fixedly mounted in the middle of the top of the premixing cylinder 4. The motor and reducer are integrally mounted on the motor mount. The motor and reducer are connected to the upper end of the stirring shaft 19 via a coupling. The upper end of the stirring shaft 19 is rotatably connected via a bearing in a bearing seat at the top of the premixing cylinder 4, providing stable speed and torque. The stirring shaft 19 is installed sequentially through the micro-feed cylinder 16 and the lifting cylinder 18. A first stirring blade 21 is fixedly installed on the stirring shaft 19 section inside the micro-feed cylinder 16. The first stirring blade 21 adopts a paddle-type structure, which can fully stir and mix the micro-components. A dustproof bearing is installed on the stirring shaft 19 section below the discharge pipe 17. The bearing inside the bearing is rotatably connected to the stirring shaft 19. The bearing housing is fixedly connected to the inner wall of the premix cylinder 4 through four radially arranged connecting rods. The two bearings enable the stirring shaft 19 to rotate stably inside the premix cylinder 4. A first spiral blade 22 is fixedly installed on the stirring shaft 19 section inside the discharge pipe 17. The first spiral blade 22 not only serves as a conveyor but also controls the discharge speed of the material. A second spiral blade 23 is fixedly installed on the stirring shaft 19 section inside the lifting cylinder 18. The second spiral blade 23 is responsible for lifting the material from the bottom to the top to form a circulating mixture.

[0025] Specifically, a conical material distribution plate 24 is fixedly installed on the stirring shaft 19 below the lifting cylinder 18, such as... Figure 4 , 5 As shown, the conical material distribution plate 24 has multiple outwardly extending bosses 25 on its side. The bosses 25 are evenly distributed in a curved shape along the circumference of the conical material distribution plate 24. When the material falls onto the conical material distribution plate 24, it moves along the inclined plane under the action of centrifugal force and is dispersed by the bosses 25, achieving uniform distribution.

[0026] See Figure 1 The bottom outlet of the premixing cylinder 4 is connected to a horizontally arranged screw conveyor 26. The screw conveyor 26 is fixedly connected to the bracket 1, or it is installed by being suspended and fixed below the premixing cylinder 4 by steel wire rope, or it is supported and fixed by a support on the floor where it is installed. The screw conveyor 26 is driven by a separate motor and can continuously discharge the mixed material.

[0027] See Figure 1 , 2 3. Among the six silo units, the discharge pipes of the screw conveyors 3 of two silo units are connected to the inlet of the micro-feed cylinder 16 through the feed pipe to supply micro-components; the discharge pipes of the screw conveyors 3 of the remaining four silo units are connected to the inlet of the premix cylinder 4 through the feed pipe to supply large quantities of formulated feed.

[0028] Specifically, each weighing sensor assembly 7 and each screw conveyor 3 are electrically connected to the control system. The control system uses a PLC as the core controller and is equipped with a human-machine interface, enabling functions such as formula management, process monitoring, and data recording.

[0029] In this embodiment, the working principle of the weight reduction weighing is as follows: each silo unit and the material inside it together constitute a weighed whole. The weighing sensor assembly 7 continuously measures the total weight of the silo unit. During batching, the control system performs the following steps: Reading the initial value: Before starting the corresponding screw conveyor 3, the control system reads and records the current total weight of the silo unit through the weighing sensor assembly 7 as the initial weight value W1. Then, starting the conveying and real-time monitoring, the control system starts the screw conveyor 3 to convey the material to the premixing cylinder 4, and continuously monitors the total weight of the silo unit during this process. Then, performing calculation and judgment, the control system calculates the difference between the initial weight value W1 and the current weight value W2 in real time, i.e., ΔW = W1-W2. This difference ΔW is the weight of the material that has been conveyed from the silo unit (i.e., the amount of material fed). Next, stopping when the target is reached: when the difference ΔW reaches the target amount of material fed W preset in the formula, the control system immediately stops the screw conveyor 3. In the above way, the system accurately controls the amount of material fed by measuring the weight reduction value (i.e., "weight reduction") of the silo unit during the batching process. The advantage of this method is that it eliminates the influence of the screw conveyor's own performance fluctuations (such as jetting, internal residue, etc.) on the accuracy of batching, because it measures the weight reduced at the source, rather than the weight received.

[0030] Specifically, the weighing sensor assembly is structured such that each hopper unit is suspended or supported on the bracket 1 via the weighing sensor assembly 7. Specifically, the weighing sensor assembly 7 includes three or four weighing sensors, distributed below the support points of the hopper unit in a three- or four-point support manner to ensure stable and accurate weighing. The screw conveyor 3 is fixedly connected to the hopper 2 and participates in the weighing process together with the hopper 2. The feed pipe 5 and the flexible hose 6 are connected by hose clamps to avoid interference with the weighing of the hopper unit.

[0031] The working process of this utility model is as follows: 1. The control system starts the corresponding screw conveyor 3 according to the preset formula. The weighing sensor assembly 7 monitors the weight change of the silo unit in real time. When the target weight is reached, the screw conveyor 3 stops. Trace components are transported to the trace feed hopper 16, and the bulk formula is directly transported to the premix hopper 4.

[0032] 2. The drive device 20 drives the stirring shaft 19 to rotate. Inside the micro-feed cylinder 16, the first stirring blade 21 performs preliminary mixing of the micro-components. The mixed micro-components are then quantitatively discharged through the first spiral blade 22 and uniformly dispersed on the conical feed plate 24.

[0033] 3. The second spiral blade 23 lifts the material at the bottom of the premixing cylinder 4 to the top, forming a strong circulating flow. Trace components and a large amount of formulated materials are fully mixed during the circulation process.

[0034] 4. After mixing is complete, the screw conveyor 26 starts to discharge the finished material from the system and proceed to the next process.

[0035] Throughout the process, the control system monitors the operating status of each piece of equipment in real time to ensure the accuracy of ingredient proportioning and the quality of mixing. The system also features safety protection functions, automatically shutting down and triggering an alarm in case of any abnormality. The specifications of this invention are: ingredient proportioning accuracy: ±0.1%~±0.5%; mixing uniformity variation coefficient: ≤5%; single batch processing time: 10~30 minutes.

[0036] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.

[0037] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.

Claims

1. A premixed material reduction batching system, comprising a support frame (1), wherein a plurality of silo units are arranged on the support frame (1), each silo unit comprising a silo (2) and a screw conveyor (3), wherein the inlet of the screw conveyor (3) is sealed to the outlet at the bottom of the silo (2); a weighing sensor assembly (7) is arranged below each silo unit, characterized in that: A premixing cylinder (4) connected to a support is provided in the middle of multiple silo units. Multiple feed inlets are provided at the top of the premixing cylinder (4), and each feed inlet is connected to the discharge pipe of the corresponding silo unit's screw conveyor (3) via a feed pipe. A micro-feed cylinder (16) is coaxially arranged inside the premixing cylinder (4). The upper end of the micro-feed cylinder (16) is fixedly connected to the top plate of the premixing cylinder (4), and the lower end has a conical structure and is connected to a discharge pipe (17). An elevator cylinder (18) is provided inside the premixing cylinder (4) below the micro-feed cylinder (16). The side wall of the elevator cylinder (18) is connected to the premixing cylinder (4) via a support rod. The inner wall is fixedly connected; a stirring shaft (19) is coaxially arranged inside the premixing cylinder (4), and the upper end of the stirring shaft (19) is connected to the driving device (20) arranged at the top of the premixing cylinder (4); the stirring shaft (19) passes through the micro-feed cylinder (16) and the lifting cylinder (18) in sequence; wherein, a first stirring blade (21) is arranged on the stirring shaft (19) section located in the micro-feed cylinder (16), a first spiral blade (22) is arranged on the stirring shaft (19) section located in the discharge pipe (17), and a second spiral blade (23) is arranged on the stirring shaft (19) section located in the lifting cylinder (18).

2. The premixed material reduction batching system according to claim 1, characterized in that, A conical material distribution plate (24) is fixedly installed on the stirring shaft (19) located below the lifting cylinder (18), and an outwardly extending boss (25) is provided on the side of the conical material distribution plate (24).

3. The premixed material reduction batching system according to claim 1, characterized in that, The bottom outlet of the premixing cylinder (4) is connected to a horizontally arranged spiral conveyor auger (26).

4. The premixed material reduction batching system according to claim 1, characterized in that, The number of silo units is six, of which the discharge pipes of the screw conveyors (3) of at least two silo units are connected to the inlet of the micro-feed cylinder (16) through the feed pipe, and the discharge pipes of the screw conveyors (3) of the remaining silo units are connected to the inlet of the premix cylinder (4) through the feed pipe.

5. A premixed material reduction batching system according to claim 1, characterized in that, The feed pipeline includes a feed pipe (5) and a flexible hose (6).

6. The premixed material reduction batching system according to claim 1, characterized in that, Each of the weighing sensor assemblies (7) and each of the screw conveyors (3) are electrically connected to the control system.

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