Automatic sampler for feed-grade granular calcium hydrophosphate

Abstract

The utility model discloses an automatic sampler for feed-grade granular calcium hydrophosphate. The automatic sampler for feed-grade granular calcium hydrophosphate comprises a gear motor, a rack and a sampling hopper, the speed reducing motor is mounted on the rack; the rack is erected above the belt; a gap is formed between the bottom end of the sampling hopper and the top surface of the belt; the gear motor is in driving connection with the sampling hopper; the sampling hopper rotates around an output shaft of the speed reducing motor. According to the automatic sampler, uniform material taking of the whole belt section material can be realized, non-uniform material taking is prevented, so that the representativeness of the taken sample is ensured, and when the automatic sampler is used for sampling feed-grade granular calcium hydrophosphate, the sample is not blocked when being transferred to a sample box.

Description

Technical Field

[0001] The present application relates to the technical field of granular calcium hydrogen phosphate production, and in particular to an automatic sampler for feed-grade granular calcium hydrogen phosphate. Background Art

[0002] The appearance of the currently available feed-grade calcium hydrogen phosphate is off-white powder or granular, and it is mainly used in feed additives. It is slightly soluble in water and easily soluble in dilute hydrochloric acid, dilute nitric acid and acetic acid. The national standard GB 22549-2017 "Calcium hydrogen phosphate as feed additive" stipulates that feed-grade calcium hydrogen phosphate is divided into type I, type II and type III according to the difference in the main content of phosphorus and calcium in the product.

[0003] Studies have shown that feed-grade calcium hydrogen phosphate can be completely dissolved in animal gastric acid. Feeds containing calcium hydrogen phosphate can significantly accelerate the growth and development of livestock and poultry, improve the breeding rate and survival rate of livestock and poultry, and have a good preventive and therapeutic effect on osteomalacia, white diarrhea, and paralysis of livestock and poultry. Feed-grade calcium hydrogen phosphate has become one of the best feed mineral additives recognized at home and abroad.

[0004] Granular feed-grade calcium hydrogen phosphate has the advantages of convenient transportation and weighing, and produces very little dust during the use of ingredients, and is widely welcomed by users. At present, the main particle sizes of feed-grade granular calcium hydrogen phosphate sold on the market are 10-40 mesh, 20-60 mesh, and 20-150 mesh, among which the product with 20-150 mesh has the largest demand. The common production process of existing feed-grade granular calcium hydrogen phosphate can be found in Figure 1 As shown, after phosphoric acid and calcium powder are used as raw materials and calcium hydrogen phosphate is obtained through reaction and granulation, it is necessary to dry and screen repeatedly to obtain a semi-finished product with a qualified particle size, and then package, transport and sell it. Due to the need for repeated granulation, drying and screening, the particle size uniformity between batches of products cannot be unified. After repeated granulation and drying, the content of fine powder in the product will also increase.

[0005] When the semi-finished products are transported by the leather conveyor to the finished product silo for packaging, in order to ensure that all product indicators are qualified, it is necessary to sample the semi-finished products on the leather conveyor during transportation.

[0006] At present, most manufacturers have operators use test tubes and other small containers on both sides of the belt to randomly sample materials on the belt. This sampling method consumes a lot of manpower and material resources. At the same time, due to the non-uniform particle size of each batch of products, the particle size of granular calcium hydrogen phosphate in different parts of the belt varies greatly. When the granulation effect is not ideal, some fine powder may even be entrained. The manual sampling container is small and the area is small. It is difficult to ensure the uniformity of the sampling results of each sample by relying solely on manual random sampling. The sampling error is large, resulting in a lack of representativeness of the measurement results.

[0007] For example, CN202321322133.1 discloses a feed sampler, but the sampler can only be used to sample box samples on a conveyor belt and cannot achieve uniform sampling of granular materials.

[0008] The information disclosed in the background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in the field. Utility Model Content

[0009] In view of the above technical problems, the present application provides a feed-grade granular calcium hydrogen phosphate automatic sampler, which can realize automatic sampling of feed-grade granular calcium hydrogen phosphate, has high sampling efficiency, effectively improves sampling uniformity, and reduces manual input.

[0010] The present application provides a feed-grade granular calcium hydrogen phosphate automatic sampler, which is mounted above a belt; the belt comprises: a first section, a second section, and a third section; the first section and the third section are respectively connected to both sides of the second section, and the first section and the third section form an obtuse angle; the first section and the second section form an obtuse angle; the feed-grade granular calcium hydrogen phosphate automatic sampler comprises: a reduction motor, a frame, and a sampling bucket; the reduction motor is mounted on the frame; the frame is mounted above the belt; a gap is set between the bottom end of the sampling bucket and the top surface of the belt; the reduction motor is drivingly connected to the sampling bucket; the sampling bucket is rotatably arranged around the output shaft of the reduction motor;

[0011] When the sampling hopper is in the sampling position, the sampling hopper is vertically arranged with the second section;

[0012] When the sampling bucket is in the unloading position, the angle between the sampling bucket and the sampling position is B, and B is 55-58°.

[0013] Preferably, the sampling hopper comprises: a first plate and a second plate; the first plate is connected to the second plate and forms an angle A; A is 133-137°; a gap is set between the bottom of the first plate and the belt.

[0014] Preferably, the length:width ratio of the sampling hopper 6 is 3.7-4:1.

[0015] Preferably, the sample box and the material chute are arranged on one side of the frame; when the sampling hopper is in the unloading position, the sampling hopper is arranged to extend obliquely toward the material chute;

[0016] The bottom surface of the chute is connected with the sample box.

[0017] Preferably, an inclined plate extending obliquely toward the sample box is provided on the inner bottom surface of the chute.

[0018] Preferably, it comprises: a sampling rod; one end of the sampling rod is connected to the sampling bucket, and the middle part of the sampling rod is drivingly connected to the output end of the reduction motor.

[0019] Preferably, it comprises: a power supply module and a timer; the power supply module is electrically connected to a reduction motor; and the timer is arranged on a circuit electrically connected to the power supply module and the timer.

[0020] The beneficial effects of this application include:

[0021] 1) The feed-grade granular calcium hydrogen phosphate automatic sampler provided in the present application is particularly suitable for sampling granular calcium hydrogen phosphate with fine powder. Such materials have the characteristic of incompletely uniform particle size. The sampler sets up an obtuse-angle sampling bucket above the conveyor belt. The sampling bucket can make use of the multiple obtuse-angle connections of the belt to push the material on the belt into the chute of the inclined plate connected to the sample box, thereby achieving sampling and improving the uniformity and representativeness of the sampling results.

[0022] 2) The feed-grade granular calcium hydrogen phosphate automatic sampler provided in the present application can sample the entire cross-section of the belt to be packaged that transports feed-grade granular calcium hydrogen phosphate, thereby ensuring the representativeness and authenticity of the samples taken. Compared with manual sampling, the results are more accurate and have smaller errors, thereby improving production safety. The automatic sampler is easy to install and maintain, and the samples taken are more representative than those taken by manual sampling.

[0023] 3) The feed-grade granular calcium hydrogen phosphate automatic sampler provided in the present application can achieve uniform sampling of the entire belt cross-section material and prevent uneven sampling, thereby ensuring that the sample taken is representative. When the device is used for sampling feed-grade granular calcium hydrogen phosphate, no blockage occurs when the sample is transported to the sample box. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the existing feed-grade granular calcium hydrogen phosphate production process;

[0025] Figure 2 A schematic diagram of the main structure of a feed-grade granular calcium hydrogen phosphate automatic sampler in at least one embodiment provided in the present application;

[0026] Figure 3 A schematic diagram of a main view of a sampling bucket in at least one embodiment provided in the present application;

[0027] Figure 4 A schematic side view of a sampling bucket in at least one embodiment provided in the present application;

[0028] Figure 5 A schematic diagram of module connections in at least one embodiment provided in the present application;

[0029] Legend:

[0030] Sample box 1, chute 2, machine cover 3, reduction motor 4, belt 5, sampling bucket 6, sampling rod 61, roller 7, supporting leg 8, channel steel bracket 9, PLC control module 21, timer 51. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0033] The controller used in this embodiment is an existing structure, and the control circuit can be implemented through simple programming by technicians in this field. It belongs to the common knowledge in this field. It is only used without modification, so the control method and circuit connection are not described in detail.

[0034] The technical means that are not described in detail in this application and are not used to solve the technical problems of this application are all set according to the common knowledge in the field, and can be implemented in a variety of common knowledge settings.

[0035] See also Figures 2 to 5 The feed-grade granular calcium hydrogen phosphate automatic sampler provided in the present application is made of stainless steel 316, and the legs 8 are supported and set on the ground, and the channel steel bracket 9 is installed and fixed on the top surface of each leg 8. The channel steel bracket 9 is installed above the belt for conveying the granular calcium hydrogen phosphate to be packaged through the legs 8. The reduction motor 4 is installed on the channel steel bracket 9, and the reduction motor 4 is connected to the middle driving of the sampling bucket 6; the sampling bucket 6 is rotatably set along the rotating shaft of the reduction motor 4. When the sampling bucket 6 is set vertically on the belt 5, it is the material taking position. When the angle between the sampling bucket 6 and the sampling position is B, the sampling bucket 6 is in the unloading position.

[0036] When the sampling hopper 6 rotates to the lowest point, it is in the material taking position and a gap is set between the bottom edge of the sampling hopper and the belt 5. When the sampling hopper 6 is driven by the motor to rotate to the unloading position, the material on the sampling hopper 6 slides down along the obtuse angle surface of the sampling hopper 6 into the chute 2. The top of the chute 2 is open to facilitate the material to fall into it. It falls into the sample box 1 along the chute 2. The bottom surface of the belt 5 is in rolling contact with each roller 7 respectively. The belt 5 includes: a first section, a second section and a third section; the first section and the third section are respectively at an obtuse angle with the second section; the second section is set parallel to the ground. The rotation path of the sampling hopper 6 is a circle with the output shaft of the reduction motor 4 as the center. The radius of the circle is the distance from the output shaft to the midpoint of the second section of the belt 5. The other parts of the circle do not contact the belt 5.

[0037] During use, the stop position of the sampling hopper 6 can be controlled by the operator controlling the rotation angle of the reduction motor 4. After sampling at the material taking position, the sampling hopper 6 stays at the unloading position for 0.15s to unload, and then rotates to the material taking position. An obtuse angle is set inside the sampling hopper 6. The angle A of the obtuse angle is 133°. The angle B between the material taking position and the unloading position of the sampling hopper is 55°. The length: width ratio of the sampling hopper 6 is 3.7:1. The size with this aspect ratio can increase the sampling frequency while reducing the single sampling amount, thereby effectively improving the sampling uniformity and representativeness. By adopting the B angle, the granular material can move into the chute 2 under the action of inertia, fall into the chute 2 under the action of gravity, and fall into the sample box 1 along the chute 2.

[0038] In a specific embodiment, the angle A of the sampling hopper 6 is 135°, the angle B between the sampling hopper material taking position and the material discharging position is 57°, and the length:width ratio of the sampling hopper 6 is 3.9:1.

[0039] In a specific embodiment, the angle A of the sampling hopper 6 is 137°, the angle B between the sampling hopper material taking position and the material discharging position is 58°, and the length:width ratio of the sampling hopper 6 is 4:1.

[0040] In a specific embodiment, the bottom surface of the material chute 2 is an inclined plate. The inclined plate can be provided to avoid material accumulation and blockage.

[0041] In a specific embodiment, to achieve timed sampling, it includes: a power supply module 21, a timer 41; the power supply module 21 is electrically connected to the reduction motor 4; the timer 41 is set on a circuit connecting the power supply module 21 and the timer 41. When the timer 51 issues an instruction to start the reduction motor 4 to rotate for sampling, the timer 41 can be a time-controlled switch.

[0042] In a specific embodiment, the chute 2 is installed on the bottom surface of one side of the channel steel bracket 9; the chute 2 is connected to the sample box 1.

[0043] In a specific embodiment, it includes: a machine cover 3, which is covered on a channel steel bracket 9 and covers a reduction motor 4.

[0044] In a specific embodiment, it includes: a sampling rod 61; a sampling bucket 6 is arranged at the bottom end of the sampling rod 61; a mounting hole is arranged in the middle of the sampling rod 61, and the sampling rod 61 is detachably connected to the output shaft of the reduction motor 4 through the mounting hole.

[0045] In a specific embodiment, the sampling hopper 6 includes: a first plate and a second plate; a gap is set between the bottom end of the first plate and the belt 5; the top edge of the first plate is connected to the second plate, and the top edge of the second plate is connected to the sampling rod 61. The angle between the first plate and the second plate is A. The widths of the first plate and the second plate are the same.

[0046] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A feed-grade granular calcium hydrogen phosphate automatic sampler, the feed-grade granular calcium hydrogen phosphate automatic sampler is mounted above a belt; the belt comprises: The first paragraph, the second paragraph, the third paragraph; The first section and the third section are connected to both sides of the second section respectively, and the first section and the third section form an obtuse angle; The first and second sections form an obtuse angle; The feed-grade granular calcium hydrogen phosphate automatic sampler comprises: a reduction motor, a frame, and a sampling bucket; the reduction motor is installed on the frame; the frame is set above the belt; a gap is set between the bottom end of the sampling bucket and the top surface of the belt; the reduction motor is connected to the sampling bucket by driving; the sampling bucket is set to rotate around the output shaft of the reduction motor; When the sampling hopper is in the sampling position, the sampling hopper is vertically arranged with the second section; When the sampling bucket is in the unloading position, the angle between the sampling bucket and the sampling position is B, and B is 55-58°.

2. The feed-grade granular calcium hydrogen phosphate automatic sampler according to claim 1, characterized in that: The sampling hopper comprises: a first plate and a second plate; the first plate and the second plate are connected to form an angle A; A is 133-137 degrees; a gap is set between the bottom of the first plate and the belt.

3. The feed-grade granular calcium hydrogen phosphate automatic sampler according to claim 1, characterized in that: The length:width ratio of the sampling bucket (6) is 3.7-4:

1.

4. The feed-grade granular calcium hydrogen phosphate automatic sampler according to claim 1, characterized in that: include: Sample box, chute; the chute is arranged on one side of the frame; when the sampling hopper is in the unloading position, the sampling hopper is extended obliquely toward the chute; The bottom surface of the chute is connected with the sample box.

5. The feed-grade granular calcium hydrogen phosphate automatic sampler according to claim 4, characterized in that: An inclined plate extending obliquely toward the sample box is arranged on the inner bottom surface of the chute.

6. The feed-grade granular calcium hydrogen phosphate automatic sampler according to claim 1, characterized in that: The utility model comprises a sampling rod; one end of the sampling rod is connected with the sampling bucket, and the middle part of the sampling rod is drivingly connected with the output end of the reduction motor.

7. The feed-grade granular calcium hydrogen phosphate automatic sampler according to claim 1, characterized in that: include: Power supply module, timer; power supply module reduction motor electrical connection; The timer is arranged on a circuit electrically connected to the power supply module and the timer.

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