A double-calibration device for trace addition

Abstract

The present invention relates to the field of weighing technology, and specifically discloses a dual calibration device for trace addition, comprising a support seat, a weighing tank and a water storage tank, wherein the support seat is arranged in a stepped shape, a weighing device is arranged at the top of the low step of the support seat, the weighing tank is installed at the top of the weighing device, a feeding structure for supplying liquid additives is arranged at the top of the weighing tank, the water storage tank is installed at the top of the high step of the support seat, a water supply structure is arranged on the side wall of the water storage tank, a mixing barrel is arranged at the top of the low step of the support seat, a proportioning component for proportioning additives and water is arranged on the outer wall of the mixing barrel, and a stirring component is arranged in the mixing barrel. The present invention has a dual calibration function for the process of adding trace additives, improves the detection accuracy of the flowmeter for trace additives, and has an automatic adjustment function for the pre-mixing ratio of additives and water.

Description

Technical Field

[0001] The invention relates to the technical field of weighing, and in particular to a dosage double calibration device for trace addition. Background Art

[0002] With the development of the feed industry, adding a series of small amounts of nutrient liquids or trace elements in the feed production and processing has become one of the essential links. The content of these additives in feed is extremely small, but they play a very critical role. They can not only promote the growth and development of livestock and poultry, but also ensure the health of such animals, providing the most basic guarantee for the production of good quality meat, eggs and milk products. The amount of some additives added is strictly limited. Insufficient or excessive addition will have a negative impact on animal growth and even produce toxic side effects.

[0003] In the process of feed production, the conventional practice is to use a single metering method such as a metering pump, flow meter or weighing to control the dosage of additives. However, as the operating time increases or an emergency occurs, the errors of these metering methods may vary greatly and cannot be discovered in time, causing the dosage of additives to be in an out-of-tolerance state for a long time, ultimately affecting the quality of the feed. Among them, the flow meter generally directly detects the additives. Since the amount of additives is not large enough, there is a problem of sticking to the wall and remaining on the bottom, which results in insufficient detection accuracy. Summary of the invention

[0004] In order to solve the above problems existing in the prior art, the present invention provides a double calibration device for trace addition, which can overcome the technical defects.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A double calibration device for trace addition, comprising a support seat, a weighing tank and a water storage tank, wherein the support seat is arranged in a stepped shape, a weighing device is arranged at the top of the lower step of the support seat, the weighing tank is installed at the top of the weighing device, a feeding structure for supplying liquid additives is arranged at the top of the weighing tank, the water storage tank is installed at the top of the higher step of the support seat, a water supply structure is arranged on the side wall of the water storage tank, a mixing barrel is arranged at the top of the lower step of the support seat, a proportioning component for proportioning additives and water is arranged on the outer wall of the mixing barrel, a stirring component is arranged in the mixing barrel, a feeding pipe communicating with each other is arranged on the side wall of the mixing barrel, a feeding pump is arranged on the side wall of the feeding pipe, and a flow meter is arranged on the side wall of the feeding pipe;

[0007] The proportioning assembly includes two proportioning barrels, and the bottom ends of the two proportioning barrels are respectively installed with a bearing plate, and the bearing plate is fixedly connected to the outer wall of the mixing barrel. A plug is slidably installed in the proportioning barrel, and two drainage holes are arranged at the top end of the proportioning barrel. Two support tubes are installed at the top end of the proportioning barrel, and the top ends of the two support tubes are connected to drainage tubes. A driving mechanism for driving the plug to slide is arranged at the bottom of the proportioning barrel, and a first limiting structure and a second limiting structure are respectively arranged in the two support tubes at the top end of the proportioning barrel, and the first limiting structure is located in the support tube close to the mixing barrel.

[0008] Preferably, the feeding structure includes a feeding pipe, which passes through and is fixedly installed on the top of the weighing tank, the side wall of the feeding pipe is provided with an adding pump, and the top of the weighing tank is provided with an air nozzle, which is used for ventilation.

[0009] Preferably, the water supply structure includes a water inlet pipe, which passes through and is fixedly installed on the side wall of the water tank, the side wall of the water inlet pipe is provided with a water pump, the top of the water tank is provided with a ventilation pipe, and the top of the ventilation pipe is provided with an adjustable cover.

[0010] Preferably, a plurality of supporting feet are provided at the bottom end of the mixing barrel, and rubber pads are provided at the bottom ends of the supporting feet.

[0011] Preferably, the proportioning cylinder located between the weighing tank and the mixing barrel is connected to the weighing tank and the mixing barrel through two drainage tubes, the side wall of the weighing tank is provided with a first branch pipe, and the first branch pipe is connected to the adjacent drainage tube; the proportioning cylinder located between the water storage tank and the mixing barrel is connected to the water storage tank and the mixing barrel through two drainage tubes, the side wall of the water storage tank is provided with a second branch pipe, and the second branch pipe is connected to the adjacent drainage tube.

[0012] Preferably, the driving mechanism comprises an F-shaped frame, which is fixedly mounted on the bottom end of the bearing plate, and an electric push rod passes through and is fixedly mounted between two horizontal sections of the F-shaped frame, and the top end of the electric push rod is fixedly connected to an adjacent plug.

[0013] Preferably, the first limiting structure includes a first limiting ring, which is fixedly mounted on the inner wall of the support tube, and a plurality of first limiting rods are arranged at the top of the first limiting ring, the first limiting rods are inverted in an L-shape, and a first limiting ball is installed between the plurality of first limiting rods.

[0014] Preferably, a groove matching the first limiting ball is arranged at the top of the first limiting ring, and a rubber layer is arranged in the groove of the first limiting ring.

[0015] Preferably, the second limiting structure includes a second limiting ring, which is fixedly mounted on the inner wall of the support tube, a plurality of second limiting rods are arranged at the bottom end of the second limiting ring, a second limiting ball is installed between the plurality of second limiting rods, and the second limiting rod is arranged in an L shape.

[0016] Preferably, the stirring assembly includes a motor, a support plate is provided at the top of the mixing barrel, the motor is fixedly mounted on the top of the support plate, the output shaft of the motor is penetrated by the support plate, and the output shaft of the motor is connected to the stirrer via a coupling.

[0017] The beneficial effects of the present invention are:

[0018] 1. By setting the proportioning assembly and the weighing device, the beneficial effect that can be obtained is that the bottom ends of the two proportioning barrels are both installed with a bearing plate, the bearing plate is fixedly connected to the outer wall of the mixing barrel, a plug is slidably installed in the proportioning barrel, two drainage holes are arranged at the top of the proportioning barrel, two support tubes are installed at the top of the proportioning barrel, the tops of the two support tubes are connected to drainage tubes, a driving mechanism for driving the plug to slide is arranged at the bottom of the proportioning barrel, and a first limiting structure and a second limiting structure are respectively arranged in the two support tubes at the top of the proportioning barrel, and the first limiting structure is located in the support tube close to the mixing barrel;

[0019] Two electric push rods respectively drive adjacent plugs to perform periodic reciprocating motion in the proportioning cylinder. The stroke of the periodic reciprocating motion of the two plugs is adjustable. According to different additive requirements, the additives and water are pre-mixed by adjusting the periodic reciprocating motion stroke of the two plugs close to the weighing tank and the water storage tank respectively. The weighing device monitors the overall weight of the weighing tank and the internal additives. The feed pump cooperates with the feed pipe to transport the mixed liquid in the mixing barrel to the mixing equipment. The flow meter detects the flow of the mixed liquid. The mixed liquid pre-mixed in proportion has a double verification function for the process of adding trace additives, which improves the detection accuracy of the flow meter for trace additives.

[0020] 2. By setting the first limiting structure and the second limiting structure, the beneficial effect that can be obtained is that the first limiting ring is fixedly installed on the inner wall of the support tube, a plurality of first limiting rods are arranged at the top of the first limiting ring, the first limiting rods are inverted in an L-shape, a first limiting ball is installed between the plurality of first limiting rods, the second limiting structure includes a second limiting ring, the second limiting ring is fixedly installed on the inner wall of the support tube, a plurality of second limiting rods are arranged at the bottom of the second limiting ring, a second limiting ball is installed between the plurality of second limiting rods, and the second limiting rods are arranged in an L-shape;

[0021] When the plug moves downward, the first limit ball presses against the first limit ring, the second limit ball moves away from the second limit ring and falls to the bottom end between the three second limit rods, and the additive in the weighing tank and the water in the water storage tank flow into the adjacent mixing tube through the adjacent drainage tube, support tube, second limit ring and drainage hole respectively; when the plug moves upward, the first limit ball moves away from the first limit ring, and the second limit ball fits the second limit ring under the action of liquid pressure, and the liquid in the mixing tube enters the mixing barrel through the drainage hole, support tube, first limit ring and drainage tube, which has the function of automatically adjusting the pre-mixing ratio of additive and water.

[0022] 3. By setting the stirring assembly, the beneficial effect that can be obtained is that the stirring assembly includes a motor, a support plate is provided at the top of the mixing barrel, the motor is fixedly installed at the top of the support plate, the output shaft of the motor and the support plate are arranged to penetrate, and the output shaft of the motor is connected to the stirrer through a coupling;

[0023] The motor drives the agitator to premix the additives and water in the mixing barrel in proportion, and the feed pump cooperates with the feed pipe to transport the mixed liquid in the mixing barrel to the mixing equipment, which has the function of premixing and stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is the installation structure diagram of the flow meter in the present invention;

[0027] Figure 3 is a cross-sectional view of the proportioning tube in the present invention;

[0028] Figure 4 It is a suction state diagram of the proportioning cylinder in the present invention;

[0029] Figure 5 It is a pushing and discharging state diagram of the proportioning cylinder in the present invention;

[0030] Figure 6 This is a diagram of the installation structure of the stirring assembly in the present invention.

[0031] Description of reference numerals:

[0032] In the figure: 1. support base; 2. weighing device; 3. weighing tank; 31. feed pipe; 32. adding pump; 33. air nozzle; 34. first branch pipe; 4. water storage tank; 41. water inlet pipe; 42. water pump; 43. ventilation pipe; 44. second branch pipe; 5. mixing barrel; 51. feeding pipe; 52. feeding pump; 53. flow meter; 54. supporting foot; 6. proportioning cylinder; 61. bearing plate; 62. plug; 63. drainage hole; 64. supporting pipe; 65. drainage pipe; 66. F-type frame; 67. electric push rod; 71. first limit ring; 72. first limit rod; 73. first limit ball; 74. second limit ring; 75. second limit rod; 76. second limit ball; 81. supporting plate; 82. motor; 83. agitator. DETAILED DESCRIPTION

[0033] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are clearly and completely described below in combination with the accompanying drawings and preferred embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present application, it should be understood that the orientation or position relationship indicated by "inside", "outside", etc. is based on the orientation or position described in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, a specific orientation structure and operation, and therefore cannot be understood as a limitation on the present application.

[0035] Reference Figure 1-Figure 6, is a double calibration device for trace addition disclosed by the present invention, comprising a support seat 1, a weighing tank 3 and a water storage tank 4, the support seat 1 is arranged in a stepped shape, a weighing device 2 is arranged at the top of the low step of the support seat 1, the weighing tank 3 is installed at the top of the weighing device 2, a feeding structure for supplying liquid additives is arranged at the top of the weighing tank 3, the feeding structure comprises a feeding pipe 31, the feeding pipe 31 passes through and is fixedly installed at the top of the weighing tank 3, an addition pump 32 is arranged on the side wall of the feeding pipe 31, an air nozzle 33 is arranged on the top of the weighing tank 3, the air nozzle 33 is used for ventilation, the water storage tank 4 is installed at the top of the high step of the support seat 1, and the side wall of the water storage tank 4 is provided with The water supply structure includes a water inlet pipe 41, which passes through and is fixedly installed on the side wall of the water storage tank 4. A water pump 42 is arranged on the side wall of the water inlet pipe 41. A ventilation pipe 43 is arranged on the top of the water storage tank 4. An adjustable cover is arranged on the top of the ventilation pipe 43. A mixing barrel 5 is arranged on the top of the lower step of the support seat 1. A proportioning component for proportioning additives and water is arranged on the outer wall of the mixing barrel 5. A communicating feeding pipe 51 is installed on the side wall of the mixing barrel 5. A feeding pump 52 is arranged on the side wall of the feeding pipe 51. A flow meter 53 is arranged on the side wall of the feeding pipe 51. A plurality of supporting feet 54 are arranged on the bottom end of the mixing barrel 5. Rubber pads are arranged on the bottom ends of the supporting feet 54.

[0036] The proportioning assembly includes two proportioning cylinders 6, the bottom ends of the two proportioning cylinders 6 are both installed with a bearing plate 61, the bearing plate 61 is fixedly connected to the outer wall of the mixing barrel 5, a plug 62 is slidably installed in the proportioning cylinder 6, the top of the proportioning cylinder 6 is provided with two drainage holes 63, the top of the proportioning cylinder 6 is installed with two support tubes 64, the tops of the two support tubes 64 are connected with drainage tubes 65, the proportioning cylinder 6 located between the weighing tank 3 and the mixing barrel 5 is connected to the weighing tank 3 and the mixing barrel 5 through the two drainage tubes 65, and the side wall of the weighing tank 3 is provided with A first branch pipe 34 is provided, and the first branch pipe 34 is connected to an adjacent drainage pipe 65. The proportioning tube 6 located between the water storage tank 4 and the mixing barrel 5 is connected to the water storage tank 4 and the mixing barrel 5 through two drainage pipes 65. A second branch pipe 44 is provided on the side wall of the water storage tank 4, and the second branch pipe 44 is connected to an adjacent drainage pipe 65. A driving mechanism for driving the plug 62 to slide is provided at the bottom of the proportioning tube 6. The driving mechanism includes an F-shaped frame 66, and the F-shaped frame 66 is fixedly installed at the bottom end of the bearing plate 61. The two horizontal An electric push rod 67 is passed through and fixedly installed between the sections, and the top of the push rod of the electric push rod 67 is fixedly connected to the adjacent plug 62. The two support tubes 64 at the top of the proportioning tube 6 are respectively provided with a first limiting structure and a second limiting structure. The first limiting structure is located in the support tube 64 close to the mixing barrel 5. The first limiting structure includes a first limiting ring 71, which is fixedly installed on the inner wall of the support tube 64. A plurality of first limiting rods 72 are provided on the top of the first limiting ring 71. The first limiting rods 72 are inverted. It is arranged in an L shape, with a first limiting ball 73 installed between multiple first limiting rods 72, a groove matching the first limiting ball 73 is arranged at the top of the first limiting ring 71, a rubber layer is arranged in the groove of the first limiting ring 71, and the second limiting structure includes a second limiting ring 74, the second limiting ring 74 is fixedly installed on the inner wall of the support tube 64, a plurality of second limiting rods 75 are arranged at the bottom end of the second limiting ring 74, a second limiting ball 76 is installed between the multiple second limiting rods 75, and the second limiting rods 75 are arranged in an L shape.

[0037] A stirring assembly is provided in the mixing barrel 5, and the stirring assembly includes a motor 82. A support plate 81 is provided at the top of the mixing barrel 5. The motor 82 is fixedly installed on the top of the support plate 81. The output shaft of the motor 82 is arranged to penetrate the support plate 81. The output shaft of the motor 82 is connected to the stirrer 83 through a coupling.

[0038] The working principle and use process of the present invention are as follows: the adding pump 32 cooperates with the feeding pipe 31 to pump the liquid additive into the water storage tank 4, and the water pump 42 cooperates with the water inlet pipe 41 to pump water into the water storage tank 4. When the additive needs to be transported to the mixing equipment, the two electric push rods 67 respectively drive the adjacent plugs 62 to perform periodic reciprocating motion in the proportioning tube 6. The stroke of the periodic reciprocating motion of the two plugs 62 is adjustable. According to different additive requirements, the ratio of additives to water is adjusted by respectively adjusting the stroke of the periodic reciprocating motion of the two plugs 62 close to the weighing tank 3 and the water storage tank 4. When the plug 62 moves downward, the first limiting ball 73 abuts against the first limiting ring 71, and the second limiting ball 76 moves away from the second limiting ring 74 and falls to the bottom end between the three second limiting rods 75. The additive in the weighing tank 3 and the water in the water storage tank 4 flow into the adjacent proportioning tube 6 through the adjacent drainage tube 65, the support tube 64, the second limiting ring 74 and the drainage hole 63, and the plug 62 moves upward. When the mixing drum 5 is filled with water, the first limiting ball 73 moves away from the first limiting ring 71, and the second limiting ball 76 fits the second limiting ring 74 under the action of liquid pressure. The liquid in the proportioning cylinder 6 enters the mixing barrel 5 through the drainage hole 63, the support tube 64, the first limiting ring 71 and the drainage tube 65. The weighing device 2 monitors the overall weight of the weighing tank 3 and the internal additives. The motor 82 drives the agitator 83 to pre-mix the additives and water in the mixing barrel 5 in proportion. The feeding pump 52 cooperates with the feeding tube 51 to transport the mixed liquid in the mixing barrel 5 to the mixing equipment. The flow meter 53 detects the flow of the mixed liquid. The mixed liquid pre-mixed in proportion improves the detection accuracy of the flow meter 53 for trace additives. The flow meter 53 is used as the main process measurement basis, and the weighing device 2 is used as an auxiliary measurement. The two measurement methods based on different principles are compared with each other. While improving the accuracy of liquid measurement and the reliability of the overall system, the liquid addition system can also be operated stably for a long time.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A double calibration device for trace addition, comprising a support base (1), a weighing tank (3) and a water storage tank (4), characterized in that: The support seat (1) is arranged in a stepped shape, a weighing device (2) is arranged at the top of the lower step of the support seat (1), the weighing tank (3) is mounted on the top of the weighing device (2), a feeding structure for supplying liquid additives is arranged at the top of the weighing tank (3), the water storage tank (4) is mounted on the top of the higher step of the support seat (1), a water supply structure is arranged on the side wall of the water storage tank (4), a mixing barrel (5) is arranged at the top of the lower step of the support seat (1), a proportioning component for proportioning additives and water is arranged on the outer wall of the mixing barrel (5), a stirring component is arranged inside the mixing barrel (5), a feeding pipe (51) is arranged on the side wall of the mixing barrel (5), a feeding pump (52) is arranged on the side wall of the feeding pipe (51), and a flow meter (53) is arranged on the side wall of the feeding pipe (51); The proportioning assembly comprises two proportioning barrels (6), the bottom ends of the two proportioning barrels (6) are both provided with a bearing plate (61), the bearing plate (61) is fixedly connected to the outer wall of the mixing barrel (5), a plug rod (62) is slidably installed in the proportioning barrel (6), the top end of the proportioning barrel (6) is provided with two drainage holes (63), the top end of the proportioning barrel (6) is provided with two support tubes (64), the top ends of the two support tubes (64) are both connected to a drainage tube (65), a driving mechanism for driving the plug rod (62) to slide is provided at the bottom of the proportioning barrel (6), and a first limiting structure and a second limiting structure are respectively provided in the two support tubes (64) at the top end of the proportioning barrel (6), and the first limiting structure is located in the support tube (64) close to the mixing barrel (5); The first limiting structure comprises a first limiting ring (71), the first limiting ring (71) is fixedly mounted on the inner wall of the support tube (64), a plurality of first limiting rods (72) are arranged at the top end of the first limiting ring (71), the first limiting rods (72) are arranged in an inverted L-shape, a first limiting ball (73) is arranged between the plurality of first limiting rods (72), a groove matching the first limiting ball (73) is arranged at the top end of the first limiting ring (71), a rubber layer is arranged in the groove of the first limiting ring (71), and the second limiting structure comprises a second limiting ring (74), the second limiting ring (74) is fixedly mounted on the inner wall of the support tube (64), a plurality of second limiting rods (75) are arranged at the bottom end of the second limiting ring (74), a second limiting ball (76) is arranged between the plurality of second limiting rods (75), and the second limiting rods (75) are arranged in an L-shape.

2. A double calibration device for trace addition according to claim 1, characterized in that: The feeding structure comprises a feeding pipe (31), the feeding pipe (31) passing through and fixedly mounted on the top of a weighing tank (3), a adding pump (32) being arranged on the side wall of the feeding pipe (31), and a gas nozzle (33) being arranged on the top of the weighing tank (3), the gas nozzle (33) being used for ventilation.

3. A double calibration device for trace addition according to claim 1, characterized in that: The water supply structure comprises a water inlet pipe (41), the water inlet pipe (41) passing through and fixedly mounted on the side wall of the water storage tank (4), a water pump (42) being arranged on the side wall of the water inlet pipe (41), a ventilation pipe (43) being arranged at the top end of the water storage tank (4), and an adjustable sealing cover being arranged at the top end of the ventilation pipe (43).

4. A double calibration device for trace addition according to claim 1, characterized in that: A plurality of supporting feet (54) are provided at the bottom end of the mixing barrel (5), and a rubber pad is provided at the bottom end of the supporting feet (54).

5. A double calibration device for trace addition according to claim 1, characterized in that: The proportioning cylinder (6) located between the weighing tank (3) and the mixing barrel (5) is connected to the weighing tank (3) and the mixing barrel (5) via two drainage pipes (65); a first branch pipe (34) is provided on the side wall of the weighing tank (3); the first branch pipe (34) is connected to an adjacent drainage pipe (65); the proportioning cylinder (6) located between the water storage tank (4) and the mixing barrel (5) is connected to the water storage tank (4) and the mixing barrel (5) via two drainage pipes (65); a second branch pipe (44) is provided on the side wall of the water storage tank (4); the second branch pipe (44) is connected to an adjacent drainage pipe (65).

6. A double calibration device for trace addition according to claim 1, characterized in that: The driving mechanism comprises an F-shaped frame (66), wherein the F-shaped frame (66) is fixedly mounted on the bottom end of the bearing plate (61), and an electric push rod (67) passes through and is fixedly mounted between two horizontal sections of the F-shaped frame (66), wherein the top end of the electric push rod (67) is fixedly connected to an adjacent plug (62).

7. A double calibration device for trace addition according to claim 1, characterized in that: The stirring assembly comprises a motor (82); a support plate (81) is provided at the top of the mixing barrel (5); the motor (82) is fixedly mounted on the top of the support plate (81); an output shaft of the motor (82) penetrates the support plate (81); and the output shaft of the motor (82) is connected to the stirrer (83) via a coupling.

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