Double-scale-hopper weighing device, grease spraying system and raw material in-and-out silo system

Abstract

The utility model discloses a double-scale-bucket weighing device, a grease spraying system and a raw material in-and-out silo system, and belongs to the technical field of feed production. Wherein the double-scale-bucket weighing device comprises two weighing units which are arranged in parallel, each weighing unit comprises a hopper and a weighing sensor, and the hopper is connected with the rack through the weighing sensor; a feed port of the hopper is connected with a feed chute, and a discharge port of the hopper is connected with a collecting hopper; an upper material level device is arranged at the upper part of the hopper; a lower material level device is arranged at the lower part of the hopper; a feeding gate is arranged on the feeding articulated chute, a discharging gate is arranged at the position of a discharging port of the hopper, and the feeding gate, the weighing sensor, the upper material level device, the lower material level device and the discharging gate are connected through electric signals. And a continuous passage for material weighing, metering and feeding is formed among the feeding gate, the feeding articulated chute, the flexible connecting piece I, the hopper, the discharging gate, the flexible connecting piece II and the collecting hopper. The utility model further provides a corresponding raw material feeding system and a vacuum spraying system so as to achieve continuous feeding, batch metering and the like of corresponding materials in feed production.

Description

Technical Field

[0001] The utility model relates to a weighing device for a weighing hopper, in particular to a double weighing hopper weighing device, an oil spraying system and a raw material inlet and outlet silo system, which are used in workplaces that require continuous weighing and metering of materials during the feed production process, such as weighing and metering in the oil spraying process of expanded feed production, and at the same time, can also be used for weighing and metering of feed production raw materials entering and leaving the silo, belonging to the technical field of feed production. Background Art

[0002] In the oil spraying section of the expanded feed production process, it is necessary to measure the oil and pellet feed, and spray according to the added proportion of the oil in the formula. Among them, the oil is weighed through the oil addition system, and the pellet feed is weighed through the weighing hopper.

[0003] Currently, in order to ensure the continuity of production and the batch metering of the weighing hopper, a buffer bin is generally set above the weighing hopper, that is, the buffer bin and the weighing hopper are designed in series up and down. However, this will result in a higher equipment height and require a higher floor space. Especially for the transformation of some spraying sections, it is often impossible to implement due to limited space.

[0004] Although the prior art CN213669155U discloses "a weighing and batching system" and CN2042671U discloses "a feed weighing and preparation device", etc., they cannot achieve good batch metering and cannot solve the problem of the harsh installation space requirements for workshop equipment.

[0005] Therefore, a weighing device that can save height space, achieve batch metering, and ensure the continuity of production is needed. Summary of the Invention

[0006] In order to solve the above technical problems, a double weighing hopper weighing device, an oil spraying system and a raw material inlet and outlet silo system are proposed. Among them, through the setting of the double weighing units, it is ensured that one weighing unit feeds and the other weighing unit performs batch metering; conversely, they are interchanged to achieve the functions of continuous feeding and batch metering. The double weighing units are designed in parallel, ensuring that the height they occupy is only half of the height occupied by the prior art, optimizing the design scheme, reducing the workshop investment, and having strong guiding significance for some technical transformation projects with limited height.

[0007] In order to achieve the above technical purpose, the following technical solutions are proposed:

[0008] The first object of this technical solution is to provide a double weighing hopper weighing device suitable for feed production, including two weighing units, and the weighing units are arranged in parallel;

[0009] The weighing unit includes a hopper and weighing sensors installed on the frame. The hopper is connected to the frame through the weighing sensors; the feed inlet of the hopper is connected to a feed chute through a flexible connector I, and the discharge outlet of the hopper is connected to a collecting hopper through a flexible connector II; a high-level indicator is provided at the upper part of the hopper, and a low-level indicator is provided at the lower part of the hopper;

[0010] A feed gate is provided on the feed chute, and a discharge gate is provided at the outlet of the hopper. The feed gate, weighing sensors, high-level indicator, low-level indicator and discharge gate are connected by electrical signals;

[0011] A continuous passage for material weighing and metering feeding is formed among the feed gate, feed chute, flexible connector I, hopper, discharge gate, flexible connector II and collecting hopper.

[0012] Furthermore, a feed tee is provided on the feed chute. The feeding ends of the weighing units are connected through the feed tee, and the discharging ends of the weighing units are connected through the collecting hopper.

[0013] Furthermore, the feed tee is arranged at the back side of the process of the discharge gate.

[0014] Furthermore, all the weighing units are installed on the same frame.

[0015] The second objective of this technical solution is to provide an oil spraying system applicable to feed production, including a double-hopper weighing device.

[0016] Furthermore, a screening device is provided at the front side of the process of the double-hopper weighing device, and a material elevator is provided at the front side of the process of the screening device; a vacuum spraying device is provided at the back side of the process of the double-hopper weighing device, and the vacuum spraying device is connected to a vacuum pumping system and an oil addition system; a continuous passage for material feeding, weighing and metering and vacuum spraying is formed among the material elevator, screening device, double-hopper weighing device and vacuum spraying device.

[0017] Furthermore, a buffer bin is provided at the back side of the process of the vacuum spraying device.

[0018] The third objective of this technical solution is to provide a raw material inlet and outlet silo system applicable to feed production, including a double-hopper weighing device.

[0019] The relationships such as "upper", "between", "upper part", "lower part", "back side of the process" and "front side of the process" involved in this technical solution are defined according to the actual use status, which are conventional terms in this technical field and also the conventional terms for those skilled in the art during actual use.

[0020] Adopting this technical solution, the beneficial technical effects are as follows:

[0021] With the setting of the dual weighing unit in the present utility model, it is ensured that one weighing unit feeds materials while the other weighing unit conducts batch measurement, and vice versa for interchange, so as to achieve the functions of continuous feeding and batch measurement; the dual weighing units are designed in parallel, ensuring that the height they occupy is only half of the height occupied by the prior art, optimizing the design scheme, reducing the workshop investment, and having strong guiding significance especially for some technical transformation projects with height restrictions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the dual-hopper weighing device in the present utility model;

[0023] Figure 2 It is a schematic structural diagram of the grease spraying system related to the present utility model;

[0024] In the figure, 1. Dual-hopper weighing device, 11. Weighing unit, 111. Hopper, 112. Weighing sensor, 113. Flexible connector Ⅰ, 114. Feed chute, 115. Flexible connector Ⅱ, 116. Upper level indicator, 117. Lower level indicator, 118. Discharge gate, 12. Frame, 13. Collection hopper, 14. Feed three-way, 15. Feed gate;

[0025] 2. Screening device, 3. Material elevator, 4. Vacuum spraying device, 5. Vacuum pumping system, 6. Grease addition system, 7. Buffer bin, 8. Finished product bin, 9. Discharge three-way. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment 1

[0028] This embodiment provides: A dual-hopper weighing device applicable to feed production, as Figure 1As shown in the figure, it includes two weighing units 11, which are arranged in parallel; the weighing unit 11 includes a hopper 111 and a weighing sensor 112 provided on the frame 12, and the hopper 111 is connected to the frame 12 through the weighing sensor 112; the inlet of the hopper 111 is connected to a feed chute 114 through a flexible connector I 113, and the outlet of the hopper 111 is connected to a collecting hopper 13 through a flexible connector II 115; a high-level indicator 116 is provided at the upper part of the hopper 111, and a low-level indicator 117 is provided at the lower part of the hopper 111; a feed gate 15 is provided on the feed chute 114, and a discharge gate 118 is provided at the outlet of the hopper 111. The feed gate 15, the weighing sensor 112, the high-level indicator 116, the low-level indicator 117 and the discharge gate 118 are connected by electrical signals; a continuous path for material weighing and metering feeding is formed among the feed gate 15, the feed chute 114, the flexible connector I 113, the hopper 111, the discharge gate 118, the flexible connector II 115 and the collecting hopper 13.

[0029] In addition, according to actual needs, three weighing units 11 can be set, or even more, but all need to meet the reasonable layout of the limited space and be adapted to the feed production workshop.

[0030] In this embodiment, the double-hopper weighing device 1 includes: a feed gate 15, a hopper, a weighing sensor 112, a frame 12, a discharge gate 118, a collecting hopper 13, etc. Among them, the hopper 111, the weighing sensor 112, the high-level indicator 116, the low-level indicator 117 and the discharge gate 118 form a weighing unit 11, and are placed on the frame 12 through the weighing sensor 112. Its inlet and outlet are respectively connected to the feed chute 114 and the collecting hopper 13 through flexible connectors to ensure that the weighing is not interfered.

[0031] For the flexible connector I 113 and the flexible connector II 115, canvas joints can be used, which can effectively avoid the influence of the equipment on the batch weighing of materials, reduce the weighing error, and improve the accuracy of the batch weighing of materials.

[0032] Embodiment 2

[0033] On the basis of Embodiment 1, in order to ensure the orderliness and controllability of feeding and batch metering, this embodiment further defines:

[0034] A feed tee 14 is provided on the feed chute 114. The feeding ends of the weighing units 11 are connected through the feed tee 14, and the discharging ends of the weighing units 11 are connected through the collecting hopper 13. The feed tee 14 is provided at the subsequent process side of the discharge gate 118.

[0035] Among them, the weighing units 11 are all arranged on the same frame 12.

[0036] Embodiment 3

[0037] Based on Embodiments 1-2, this embodiment provides an oil spraying system applicable to feed production, including a double-scale weighing device 1.

[0038] Among them, as Figure 2 shown, a screening device 2 is provided on the front side of the process of the double-scale weighing device 1, and a material elevator 3 is provided on the front side of the process of the screening device 2; a vacuum spraying device 4 is provided on the rear side of the process of the double-scale weighing device 1, and the vacuum spraying device 4 is connected with a vacuum pumping system 5 and an oil addition system; a continuous passage for material feeding, weighing and metering, and vacuum spraying is formed among the material elevator 3, the screening device 2, the double-scale weighing device 1 and the vacuum spraying device 4. In addition, a buffer bin 7 is provided on the rear side of the process of the vacuum spraying device 4, and two finished product bins 8 are provided on the rear side of the process of the buffer bin 7 to distribute the corresponding materials in different finished product bins 8 according to different requirements. Moreover, the buffer bin 7 is connected to the finished product bins 8 through a discharge three-way valve 9.

[0039] The feed gate 15 operates in interlock with the screening device 2. The feed gate 15 is normally in a closed state to ensure that no foreign objects enter. After the motor of the screening device 2 is started, the feed gate 15 opens, and the feed three-way valve 14 connects to the hopper 111 in the first weighing unit 11, and the hopper 111 starts to feed; when the hopper 111 is filled to the upper level detected by the upper level detector 116, the upper level detector 116 sends a signal to the feed three-way valve 14 to switch to feeding the hopper 111 in the second weighing unit 11. At the same time, the discharge gate 118 in the first weighing unit 11 opens to start discharging. When the detected weight of the hopper 111 in the first weighing unit 11 reaches the set discharge amount, the discharge gate 118 in the first weighing unit 11 is closed; after the upper level detector 116 of the hopper 111 in the second weighing unit 11 receives the signal, the above actions of discharging, switching bins, and feeding are repeated.

[0040] Among them, the involved working process is as follows:

[0041] The expanded granular feed is lifted by the material elevator 3 and screened by the screening device 2. After screening out the caked materials and powdery materials, the feed gate 15 opens to start discharging into the hopper 111;

[0042] Detected by the upper level detector 116, the lower level detector 117 and the weighing sensor 112, the hopper 111 realizes continuous feeding and batch metering functions; then, the discharge gate 118 opens, and the hopper 111 starts to discharge into the vacuum spraying device 4. When the detected weight of the hopper 111 is zero, the discharging is completed, and the discharge gate 118 is closed;

[0043] The vacuum pumping system 5 starts to pump vacuum. When the vacuum degree reaches the set value, the vacuum pumping stops, and the material spraying mechanism in the vacuum spraying device 4 starts to operate. At this time, the spraying mechanism in the vacuum spraying device 4 sprays grease on the material. When the weight detected by the grease spraying weighing is zero, the spraying is completed, and the pressure stabilizing device slowly releases pressure to increase the pressure in the vacuum spraying machine. Due to the internal and external pressure difference of the pellet feed, the grease sprayed on the surface penetrates into the interior of the pellets to achieve the purpose of spraying.

[0044] The vacuum spraying device 4 discharges the feed with grease sprayed through the discharge tee 9 into the finished product bin 8.

[0045] In the spraying production process of the expanded feed, by setting the double-scale weighing device 1, the batch weighing of the hopper 111 can be realized, ensuring continuous production of the whole process, and at the same time controlling the height of the whole set of equipment to better adapt to the feed production line.

[0046] Example 4

[0047] On the basis of Examples 1-2, this example provides: a raw material inlet and outlet silo system applicable to feed production, including a double-scale weighing device 1.

Claims

1. A double-scale weighing device applicable to feed production, characterized in that: It includes two weighing units (11), and the weighing units (11) are arranged in parallel. The weighing unit (11) includes a hopper (111) and a weighing sensor (112) provided on a frame (12). The hopper (111) is connected to the frame (12) through the weighing sensor (112). The inlet of the hopper (111) is connected to a feed chute (114) through a flexible connector I (113), and the outlet of the hopper (111) is connected to a collecting hopper (13) through a flexible connector II (115). A feeding level detector (116) is provided at the upper part of the hopper (111), and a discharging level detector (117) is provided at the lower part of the hopper (111). A feed gate (15) is provided on the feed chute (114), and a discharge gate (118) is provided at the outlet of the hopper (111). The feed gate (15), the weighing sensor (112), the feeding level detector (116), the discharging level detector (117) and the discharge gate (118) are connected by electrical signals. A continuous passage for material weighing and metering feeding is formed among the feed gate (15), the feed chute (114), the flexible connector I (113), the hopper (111), the discharge gate (118), the flexible connector II (115) and the collecting hopper (13).

2. The double-scale weighing device applicable to feed production according to claim 1, wherein: A feed tee (14) is provided on the feed chute (114). The feeding ends of the weighing units (11) are connected through the feed tee (14), and the discharging ends of the weighing units (11) are connected through the collecting hopper (13).

3. The double-scale weighing device applicable to feed production according to claim 2, wherein: The feed tee (14) is provided at the subsequent process side of the discharge gate (118).

4. The double-hopper weighing device applicable to feed production according to claim 1, wherein: The weighing units (11) are all provided on the same frame (12).

5. An oil spraying system applicable to feed production, characterized in that: It includes the double-hopper weighing device (1) described in any one of claims 1-4.

6. The oil spraying system applicable to feed production according to claim 5, characterized in that: A screening device (2) is provided at the previous process side of the double-hopper weighing device (1), and a material elevator (3) is provided at the previous process side of the screening device (2). A vacuum spraying device (4) is provided at the subsequent process side of the double-hopper weighing device (1), and the vacuum spraying device (4) is connected to a vacuum pumping system (5) and a grease adding system. A continuous passage for material feeding, weighing and metering and vacuum spraying is formed among the material elevator (3), the screening device (2), the double-hopper weighing device (1) and the vacuum spraying device (4).

7. The oil spraying system applicable to feed production according to claim 6, characterized in that: A buffer bin (7) is provided at the subsequent process side of the vacuum spraying device (4).

8. A raw material inlet and outlet silo system applicable to feed production, characterized in that: It includes the double-hopper weighing device (1) described in any one of claims 1-4.

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