Mixing device for feeding during coarse cereal powder production

Abstract

The utility model discloses a material mixing device for coarse cereal powder production feeding, which comprises a plurality of material bins, the bottom of each material bin is provided with a weighing type material mixing device, each weighing type material mixing device comprises a horizontal helical ribbon material mixer and a weighing platform, and each weighing platform comprises a hydraulic oil pool, a supporting part, a sealing ring, a communicating pipeline and a strain type pressure sensor; the bottom of the stock bin is communicated with a feeding port of a horizontal helical ribbon mixer of the weighing type mixing device through a hose, an electromagnetic valve is arranged on each hose, and each electromagnetic valve is in signal connection with a strain type pressure sensor. According to the utility model, the stock bin, the horizontal helical ribbon mixer and the weighing platform are arranged, coarse cereal powder A-D materials can be converted into pressure values according to the weight, the blanking amount of each material is controlled according to the pressure values, the horizontal helical ribbon mixer is used for mixing the materials, the whole process is automatically controlled, accurate preparation of the materials A-D is realized, and the problem of poor accuracy during manual preparation is avoided.

Description

Technical Field

[0001] The utility model relates to a mixing device, in particular to a mixing device used for feeding the production of miscellaneous grain flour. Background Art

[0002] Multi-grain flour is made by baking carefully selected grains and cereals at low temperatures, strictly controlling the baking temperature and time, cooking the raw materials, and then crushing them. The crushed materials are then proportioned and canned to form a finished multi-grain flour product that can be eaten by brewing with boiling water.

[0003] Specifically, the production of grain powder generally includes four steps: raw material selection, drying, ripening and canning. Raw material selection refers to selecting grain raw materials that meet national standards, removing impurities and incomplete particles, and cleaning them; ripening is divided into different ripening processes according to different materials, including materials that need to be puffed, referred to as puffed materials (material A) and microwave-ripened materials, referred to as microwave materials (material B). Puffed materials are grains such as corn, mung beans, red beans, coix seeds, quinoa, wheat bran, millet, etc.; microwave materials are soybeans and peanuts; puffed materials are first weighed, mixed and crushed in proportion, and the crushed ingredients are added with water to adjust the humidity and then enter the puffing machine for puffing and granulation, and then sent to the oven for baking and crushing; microwave materials are baked, dehydrated, disinfected and sterilized in a low-temperature baking machine, and then ultra-finely crushed: canning is to mix material A, material B and other trace added material C (fruit and vegetable mixture) and material D (other additives) and stir them, send them to a microwave sterilizer for high-temperature sterilization, and then send them to the packaging workshop for weighing and packaging.

[0004] At present, the mixing method of various materials is: after the corresponding microwave treatment and puffing treatment, the A material and the B material are manually weighed and poured into the mixing tank; the C material and the D material are manually weighed and also poured into the mixing tank. After stirring, they are loaded into the material bunker of the microwave sterilization device and enter the subsequent sterilization operation. The current problems with the mixing of various materials are: 1. Manual weighing, which is a large workload; 2. Manual weighing, which has the problem of poor accuracy, especially for the D material, which has a small addition amount and extremely high requirements for the ratio. A slight error will result in a huge difference in taste and function; 3. Manual weighing, all materials are powders, and there is a problem of dust diffusion in the working environment, affecting the health of workers. Utility Model Content

[0005] In order to solve the above technical problems, the purpose of the utility model is to provide a mixing device for feeding the production of miscellaneous grain flour.

[0006] The purpose of the utility model is implemented by the following technical scheme: a mixing device for feeding grain flour production, comprising a plurality of silos, a weighing mixing device is provided at the bottom of the silo, the weighing mixing device comprises a horizontal ribbon mixer and a weighing platform, the weighing platform comprises a hydraulic oil pool, a support part, a sealing ring, a connecting pipe and a strain gauge pressure sensor;

[0007] The hydraulic oil pool is a groove-shaped structure with an opening upward, and an opening is provided at the bottom thereof, the opening is sealed and connected to the inlet end of the communicating pipe, and the outlet end of the communicating pipe is a closed structure; the strain gauge pressure sensor is fixedly provided in the communicating pipe near the outlet end of the communicating pipe; the supporting part is movably provided on the oil surface of the hydraulic oil pool, the sealing ring is provided at the gap between the supporting part and the inner wall of the hydraulic oil pool, the sealing ring is fixedly connected to the supporting part, and the sealing ring is sealed and slidably connected to the inner wall of the hydraulic oil pool; the horizontal ribbon mixer is fixedly provided on the supporting part;

[0008] The bottom of the silo is connected to the feeding port of the horizontal ribbon mixer of the weighing mixing device through a hose, and a solenoid valve is arranged on each hose, and each solenoid valve is connected to the signal of the strain gauge pressure sensor.

[0009] Preferably, the support portion includes an upper support plate and a lower support plate; a plurality of groups of connecting parts are arranged in parallel between the upper support plate and the lower support plate, and each group of the connecting parts includes a plurality of steel columns and a high-damping rubber sleeve mounted on the steel columns; the steel columns are all arranged at an angle, and the bottom ends of the steel columns are fixedly connected to the lower support plate, and the top ends are fixedly connected to the upper support plate through the high-damping rubber sleeve; two adjacent steel columns located in the same group of the connecting parts form an isosceles triangle with the upper support plate / the lower support plate.

[0010] Preferably, the number of the communicating pipes is at least two, and the inlet end of each communicating pipe is sealed and connected to the opening, and the strain gauge pressure sensor is fixedly provided at the outlet end of each communicating pipe.

[0011] Preferably, at least four parallel-connected strain gauge pressure sensors are fixedly disposed in each of the communicating pipes.

[0012] Advantages of the utility model:

[0013] The utility model is provided with a silo, a horizontal ribbon mixer and a weighing platform. The grain powder A-D materials can be converted into a pressure value according to the weight, and the feeding amount of each material can be controlled according to the pressure value. The horizontal ribbon mixer is used to mix the materials, and the whole process is automatically controlled to realize the accurate preparation of A-D materials, thereby avoiding the problem of poor accuracy during manual preparation.

[0014] The utility model provides a material bin and a horizontal ribbon mixer which are sealed and connected via a hose, and no dust is spread during the material feeding and mixing process, thereby optimizing the working environment and ensuring the health of the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the mixing device used for feeding the production of miscellaneous grain flour in Example 1.

[0016] In the figure: 1. horizontal ribbon mixer, 2. weighing platform, 3. hydraulic oil pool, 4. support part, 41. upper steel plate, 42. lower steel plate, 43. steel column, 44. high damping rubber sleeve, 5. sealing ring, 6. connecting pipe, 7. strain type pressure sensor, 8. silo, 9. hose, 10. solenoid valve. DETAILED DESCRIPTION

[0017] The following embodiments take the final mixing device used by Inner Mongolia Suneng Biotechnology Co., Ltd. for producing miscellaneous grain flour as an example. The puffed material (material A) and the microwave-cured material (material B) are fed into the corresponding silo 8, and the materials C and D are respectively fed into the corresponding silos 8 and enter the final mixing device for processing.

[0018] Embodiment 1:

[0019] like Figure 1 As shown, a mixing device for feeding grain flour production includes four silos 8, a horizontal ribbon mixer 1 and a weighing platform 2. The weighing platform 2 includes a hydraulic oil pool 3, a support part 4, a sealing ring 5, a connecting pipe 6 and a strain gauge pressure sensor 7. The strain gauge pressure sensor 7 of this embodiment adopts the PTL503 strain gauge pressure transmitter produced by Longlv Electronics.

[0020] The hydraulic oil pool 3 is a groove-shaped structure with an opening facing upward, and an opening is provided at the bottom thereof, which is sealed and connected to the inlet end of the communication pipe 6. There are three communication pipes 6, and the inlet end of each communication pipe 6 is sealed and connected to the opening, and the outlet end of the communication pipe 6 is a closed structure; four parallel strain gauge pressure sensors 7 are fixedly provided in the communication pipe 6 near the outlet end of the communication pipe 6;

[0021] A support part 4 is movably provided on the oil surface of the hydraulic oil pool 3, and the support part 4 includes an upper steel plate 41 and a lower steel plate 42; a plurality of groups of connecting parts are arranged in parallel between the upper steel plate 41 and the lower steel plate 42, and each group of connecting parts includes a plurality of steel columns 43 and high-damping rubber sleeves 44 matched with the steel columns 43; the steel columns 43 are all arranged obliquely, and the bottom ends of the steel columns 43 are fixedly connected to the lower steel plate 42; two adjacent steel columns 43 located in the same group of connecting parts form an equilateral triangle with the upper steel plate 41 / lower steel plate 42; a high-damping rubber sleeve 44 is tightly fitted outside each steel column 43, and the two ends of the high-damping rubber sleeve 44 are respectively interference fit with the upper steel plate 41 and the lower steel plate 42. The stable equilateral triangle steel frame structure formed by the upper steel plate 41, the lower steel plate 42 and the steel column 43 can effectively prevent the vibration of the horizontal ribbon mixer 1 from being relatively concentrated on the side close to the discharge port during operation, resulting in excessive local vibration energy of the support part 4, affecting the stability of the entire measurement system; the high-damping rubber sleeve 44 can absorb the vibration transmitted from the upper steel plate 41 to the steel column 43, thereby effectively weakening the disturbance effect of the vibration of the support part 4 on the hydraulic oil.

[0022] A sealing ring 5 is provided at the gap between the lower steel plate 42 of the support part 4 and the inner wall of the hydraulic oil pool 3. The sealing ring 5 is fixedly connected to the lower steel plate 42 and is sealingly and slidingly connected to the inner wall of the hydraulic oil pool 3. The horizontal ribbon mixer 1 is fixedly arranged on the upper steel plate 41 of the support part 4, and the sealed space formed by the lower steel plate 42, the hydraulic oil pool 3 and the connecting pipe 6 is filled with hydraulic oil. The hydraulic oil is used as the pressure transmission medium, and the mechanical vibration of the support part is transmitted to the hydraulic oil from any position, and is converted into equal pressure in all directions, ensuring that the force transmitted to the strain pressure sensors at various locations is consistent, which can effectively reduce the irregular and uneven mechanical vibration caused by the stirring of the horizontal ribbon mixer 1 and transmit it to the strain pressure sensor 7, so that the measurement accuracy is higher.

[0023] When the measuring range of the strain type pressure sensor 7 does not meet the actual needs, the measuring range can be enlarged by adding a connecting pipe 6 and a strain type pressure sensor 7 .

[0024] The bottom of the silo 8 is connected to the feed port of the horizontal ribbon mixer 1 of the weighing mixing device through a hose 9. A solenoid valve 10 is provided on each hose 9, and each solenoid valve 10 is connected to the signal of the strain gauge pressure sensor 7.

[0025] Job Description:

[0026] When using this embodiment, the relationship between the oil pressure and the weight of the material must first be established, and the steps are as follows:

[0027] (1) Accurately weigh the weight of the material using multiple sets of standard weights, recorded as m;

[0028] (2) Start the horizontal ribbon mixer 1, and before feeding the horizontal ribbon mixer 1, record the initial oil pressure P0' (P0' is the sum of the readings of the 12 strain gauge pressure sensors 7);

[0029] (3) Feeding the accurately weighed materials into the horizontal ribbon mixer 1;

[0030] (4) Record the oil pressure P1' after feeding (P1' is the sum of the readings of the 12 strain gauge pressure sensors 7). In order to further reduce the error, record a data every 1 to 3 minutes when recording the oil pressure. After recording no less than 5 data in total, if there is a stable trend, use the data under this trend as P1'; if there is no stable trend, take the average value as P1' after removing the outliers;

[0031] (5) The oil pressure corresponding to the unit weight of material is:

[0032] (P1'-P0') / m.

[0033] After measuring multiple sets of weight and oil pressure data and establishing the relationship between the oil pressure and the weight of the material, this embodiment can be formally put into use to measure the weight of the grain flour material A to material D in the actual production process. The steps are as follows:

[0034] (1) Before feeding the horizontal ribbon mixer 1, record the oil pressure P0;

[0035] (2) Start the horizontal ribbon mixer 1, open the solenoid valve 10 at the bottom of the silo 8 containing material A, feed material A while stirring, and record the oil pressure P1. The pressure difference before and after the feeding of material A is P1-P0;

[0036] (3) After the feeding of material A is completed, close the solenoid valve 10 at the bottom of the silo 8 containing material A, record the oil pressure P, and continue to add material B to the horizontal ribbon mixer 1 according to the above steps, and record the oil pressure P2. The pressure difference before and after the feeding of material B is P2-P.

[0037] (4) Similarly, when adding material C and material D, the pressure difference before and after adding the materials is converted into the weight of material A to material D, and the weighing of material A to material D can be realized;

[0038] (5) The feeding order of material A to material D can also be adjusted. After the feeding is completed, the horizontal ribbon mixer 1 mixes the material A to material D and feeds them into the material bunker of the microwave sterilization device for subsequent sterilization operations.

Claims

1. A mixing device for feeding grain flour production, characterized in that: It includes several silos, the bottom of which is provided with a weighing mixing device, the weighing mixing device includes a horizontal ribbon mixer and a weighing platform, the weighing platform includes a hydraulic oil pool, a support part, a sealing ring, a connecting pipe and a strain gauge pressure sensor; The hydraulic oil pool is a groove-shaped structure with an opening upward, and an opening is provided at the bottom thereof, the opening is sealed and connected to the inlet end of the communicating pipe, and the outlet end of the communicating pipe is a closed structure; the strain gauge pressure sensor is fixedly provided in the communicating pipe near the outlet end of the communicating pipe; the supporting part is movably provided on the oil surface of the hydraulic oil pool, the sealing ring is provided at the gap between the supporting part and the inner wall of the hydraulic oil pool, the sealing ring is fixedly connected to the supporting part, and the sealing ring is sealed and slidably connected to the inner wall of the hydraulic oil pool; the horizontal ribbon mixer is fixedly provided on the supporting part; The bottom of the silo is connected to the feeding port of the horizontal ribbon mixer of the weighing mixing device through a hose, and a solenoid valve is arranged on each hose, and each solenoid valve is connected to the signal of the strain gauge pressure sensor.

2. The mixing device for feeding grain flour production according to claim 1, characterized in that: The support part includes an upper support plate and a lower support plate; a plurality of groups of connecting parts are arranged in parallel between the upper support plate and the lower support plate, and each group of the connecting parts includes a plurality of steel columns and a high-damping rubber sleeve mounted on the steel columns; the steel columns are all arranged obliquely, and the bottom ends of the steel columns are fixedly connected to the lower support plate, and the top ends are fixedly connected to the upper support plate through the high-damping rubber sleeve; two adjacent steel columns located in the same group of the connecting parts form an isosceles triangle with the upper support plate / the lower support plate.

3. The mixing device for feeding grain flour production according to claim 2 is characterized in that: The number of the communicating pipes is at least two, and the inlet end of each communicating pipe is sealed and connected to the opening, and the strain gauge pressure sensor is fixedly provided at the outlet end of each communicating pipe.

4. The mixing device for feeding grain flour production according to claim 3 is characterized in that: At least four parallel-connected strain gauge pressure sensors are fixedly arranged in each of the communicating pipes.

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