Herbal raw material crushing method and device and application

Abstract

The invention discloses a herbal raw material crushing method and device and application, and the method comprises the steps: S1, closing a material door of a material bin, opening the material door for feeding according to a preset material door valve degree after waiting for a first time period, and starting to collect current data of a power motor of a crushing bin in a first period to calculate a current mean value I1 and a standard deviation, adding a plurality of standard deviations to the current mean value I1 to obtain a current threshold value I0; s2, current data of the power motor continues to be collected, a sliding window calculates a current average value I2 at the current moment, whether the current average value I2 exceeds a current threshold value I0 or not is judged, if yes, the material gate valve degree is reduced, and the material gate valve degree is recovered after waiting for a second duration; if not, the material gate valve degree is kept; and S3, after the power motor continuously operates for a third duration, the step S1 is executed again. By regulating and controlling the feeding amount in real time, the problems of overheating, insufficient fineness and the like caused by excessive herbal raw materials in the crushing bin are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of material crushing, and particularly relates to a method, device and application for crushing herbaceous raw materials. Background Art

[0002] Herbal foods refer to foods that use herbaceous plants as the main raw materials or added ingredients, usually emphasizing the characteristics of naturalness, health and low processing. Such foods are widely used in global food cultures, including both traditional herbal medicines and modern health foods.

[0003] However, in the processing of herbal foods, due to some characteristics of herbaceous raw materials (such as possible high fiber, high oil, etc.), some problems are still likely to occur in actual processing, such as insufficient fineness of crushing and excessive loss of nutrients. There are many reasons for such problems. For example, the feeding of the crusher usually adopts manual feeding or automatic feeding: manual feeding is difficult to control the feeding amount, resulting in low crushing efficiency when the feeding amount is too small, and heat generation caused by raw material accumulation overload when the feeding amount is too large, accelerating the loss of nutrients; while automatic feeding feeds at a preset desired rate, which theoretically can balance the crushing efficiency and control heat generation. However, in practice, due to the possible presence of stubborn fibers, excessive oil, etc. in herbaceous raw materials, the crushing state is not stable. The crushing cycle of such powders becomes longer while the feed door is still continuously feeding, which is also likely to cause raw material accumulation and heat generation. Summary of the Invention

[0004] One of the purposes of the present invention is to provide a method for crushing herbaceous raw materials, aiming to improve the problems of overheating and insufficient fineness that may be caused by the accumulation of herbaceous powders.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A method for crushing herbaceous raw materials, which includes:

[0007] S1. Close the feed door of the silo, wait for the first period of time, then open the feed door for feeding according to the preset feed valve degree, start collecting the current data of the power motor in the crushing chamber within the first cycle to calculate the current average value I1 and the standard deviation, and obtain the current threshold I0 by adding several standard deviations to the current average value I1;

[0008] S2. Continue to collect the current data of the power motor, calculate the current average value I2 at the current moment by sliding window, and judge whether the current average value I2 exceeds the current threshold I0. If so, reduce the feed valve degree and wait for the second period of time before restoring the feed valve degree; if not, keep the feed valve degree;

[0009] S3. After the power motor runs continuously for the third period of time, return to S1.

[0010] Further, before feeding the herbaceous raw materials into the silo, the herbaceous raw materials are crushed to less than 2 mm, and the moisture content is controlled at 5%-10%; it is judged whether the fiber content of the herbaceous raw materials is greater than 20%. If so, the rotor speed of the crushing bin is adjusted to 1500-2000 rpm; if not, the rotor speed of the crushing bin is adjusted to 2500-3500 rpm.

[0011] Further, a cooling unit is configured for the crushing bin to suppress the temperature of the crushing bin; for herbaceous raw materials with a fat content greater than 20%, the circulating water temperature is controlled to be less than 10°C.

[0012] The second object of the present invention is to provide a herbaceous raw material crushing device for performing the herbaceous raw material crushing method as described above, aiming to improve the problems of overheating and insufficient fineness that may be caused by the accumulation of herbaceous powder.

[0013] To achieve the above object, the present invention adopts the following technical solutions:

[0014] A herbaceous raw material crushing device, which includes:

[0015] A crusher, including a silo, a crushing bin and a discharge bin, the silo includes a feed door with an electric control valve degree;

[0016] A power unit, the power unit includes a power motor and a current sensor, the power motor provides power for the crushing bin, and the current sensor monitors the current value of the power motor;

[0017] A controller for implementing the herbaceous raw material crushing method as described above.

[0018] Further, the power unit further includes a voltage stabilizer, and the voltage stabilizer is arranged at the front end of the power motor to provide a stable voltage for the power motor.

[0019] Further, the silo is arranged above the crushing bin, and the bottom of the silo slopes downward at an angle of 3-5° towards the feed door.

[0020] Further, the crusher is a hammer crusher, the crusher includes a plurality of hammer head bodies and a gear ring, the hammer head bodies are symmetric bodies, and both symmetric sides are provided with striking sides, at least one disturbance groove is opened at the front end of the hammer head body, the notch length of the disturbance groove is less than the end face length, and grinding protrusions are formed on both sides of the notch of the disturbance groove, and the grinding protrusions are adapted to the gear ring.

[0021] Further, the pulverizer is a hammer mill, which includes a plurality of hammer head bodies and counterweight blocks detachably mounted on the hammer head bodies. The hammer head body is provided with mounting holes penetrating its left and right side surfaces. The edge of the mounting hole is recessed to form a clamping platform, and the hole wall of the mounting hole is recessed to form a clamping groove. The counterweight block abuts against the clamping platform through the mounting eaves at its edge and is clamped in the clamping groove by a fastening ring circumferentially sleeved thereon.

[0022] Further, the pulverizer is a hammer mill, which includes a rotor and a lower gear ring. The rotor includes a rotating shaft, a pair of rotating shaft discs fixed on the rotating shaft, a plurality of hinged rods circumferentially mounted on the rotating shaft discs, and a plurality of hammer head bodies hinged on the hinged rods. A first flow channel is sequentially formed between one end of the rotating shaft and one of the adjacent rotating shaft discs, between one of the rotating shaft discs and one end of the hollow inner cavity of the hinged rod, between the other end of the hollow inner cavity of the hinged rod and the other rotating shaft disc, and between the other rotating shaft disc and the other end of the rotating shaft. The two ends of the first flow channel are respectively provided with water inlet and water return through rotary joints; a second flow channel is provided in the lower gear ring; and a cooling unit is further included, which includes a water pump and a water tank. The water pump supplies water to the first flow channel and the second flow channel, and the water tank supplies water for the first flow channel and the second flow channel to return.

[0023] The third object of the present invention is to provide an application of a method for pulverizing herbaceous raw materials, aiming to improve the fineness and overheating problems of herbaceous powder, and enhance the taste and nutritional value of herbaceous foods.

[0024] To achieve the above object, the present invention adopts the following technical solutions: An application of a method for pulverizing herbaceous raw materials, obtaining herbaceous powder of herbaceous foods by the method for pulverizing herbaceous raw materials as described above.

[0025] After adopting the above technical solutions, compared with the background technology, the present invention has the following advantages:

[0026] 1. By collecting the current of the power motor, the present invention judges whether the load of the pulverizing chamber is increased, so as to judge whether there is too much herbaceous raw material to be pulverized, and then adjusts the feed valve degree of the feed door in real time to control the feed amount, reducing problems such as overheating and insufficient fineness caused by too much herbaceous raw material in the pulverizing chamber; at the same time, the strategy of the present invention adopts a dynamic threshold, and the threshold setting takes into account abnormal behaviors such as the motor starting stage, belt wear during operation, and motor overheating during long-term operation, and the judgment is more accurate;

[0027] 2. By controlling the size specifications, moisture content, etc. of the herbaceous raw materials, and at the same time, correlating the fiber content with the rotational speed of the rotor in the pulverizing chamber, the present invention further ensures that the pulverizing chamber operates under a more stable state;

[0028] 3. The present invention suppresses the temperature of the crushing bin through the cooling unit. In particular, the present invention takes into account the heat generation blind spot of the hinge part of the hammer head body, reducing phenomena such as nutrient loss or even scorching caused by overheating of the herbaceous raw materials; it also takes into account the characteristics of high-fat herbaceous raw materials being prone to oxidation and high adhesion, improving the quality of the crushed herbaceous powder.

[0029] 4. The present invention optimizes the structure of the hammer head body in view of the easy adhesion characteristics of the herbaceous raw materials, improving the quality of the crushed herbaceous powder.

[0030] 5. The present invention designs the hammer head body to be weight - adjustable, capable of flexibly configuring the hammer weight according to different herbaceous raw materials, improving the quality of the crushed herbaceous raw materials. Brief Description of the Drawings

[0031] Figure 1 It is a schematic flow chart of the method for crushing herbaceous raw materials of the present invention;

[0032] Figure 2 It is a topological schematic diagram of the device for crushing herbaceous raw materials of the present invention;

[0033] Figure 3 It is a top - view schematic diagram of the device for crushing herbaceous raw materials of the present invention;

[0034] Figure 4 It is a side - view schematic diagram of a partial structure of the device for crushing herbaceous raw materials of the present invention;

[0035] Figure 5 It is a side - view schematic diagram of a partial structure of the device for crushing herbaceous raw materials of the present invention;

[0036] Figure 6 It is a partial cross - sectional view of the device for crushing herbaceous raw materials of the present invention;

[0037] Figure 7 It is a schematic diagram of the rotor part of the device for crushing herbaceous raw materials of the present invention;

[0038] Figure 8 It is a schematic diagram of the cooperation between the rotor and the gear ring of the device for crushing herbaceous raw materials of the present invention;

[0039] Figure 9 It is a schematic diagram of the hammer head body of the device for crushing herbaceous raw materials of the present invention;

[0040] Figure 10 It is a schematic diagram of the weight balance of the hammer head body of the device for crushing herbaceous raw materials of the present invention;

[0041] Figure 11 It is an unfolded schematic diagram of the cooling of the lower gear ring of the device for crushing herbaceous raw materials of the present invention.

[0042] Explanation of the Reference Numerals in the Drawings:

[0043] 100. Crusher; 110. Silo; 111. Feed door; 1111. Electric push rod; 1112. Guide rod; 120. Crushing chamber; 121. Rotating shaft; 1211. First water inlet; 1212. First water outlet; 1213. Rotary joint; 1214. Bearing seat; 122. Rotating shaft disc; 1221. Shunt hole; 1222. Confluence hole; 123. Hinge rod; 1231. O-ring; 124. Hammer head body; 1241. Striking side; 1242. Flat striking section; 1243. Concave striking section; 1244. Disturbance groove; 1245. Grinding protrusion; 1246. Mounting hole; 12461. Card slot; 12462. Card table; 1247. Counterweight; 12471. Mounting eaves; 12472. Fastening ring; 125. Inclined wind blade; 126. Fan blade; 127. Lower gear ring; 1271. Second flow channel; 1272. Sealing strip; 130. Adjusting chamber; 131. Adjusting groove; 132. Inclined ring sleeve; 133. Handle; 140. Discharge bin; 150. Cloth bag;

[0044] 200. Power unit; 210. Power motor; 220. Dust-proof cover; 230. Current sensor; 240. Voltage stabilizer;

[0045] 300. Cooling unit; 310. Water pump; 320. Water tank; 330. Overflow valve; 340. Pressure regulating valve; 400. Controller. Detailed implementation manners

[0046] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Additionally, it should be noted that:

[0047] The terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the devices or elements of the present invention must have a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0048] When an element is referred to as being "fixed to" or "disposed on" or "provided on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0049] Unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0050] Embodiment

[0051] Embodiment 1

[0052] The first aspect of the present invention provides a method for pulverizing herbaceous raw materials, aiming to improve the problems of overheating and insufficient fineness that may occur due to the possible accumulation of herbaceous powder.

[0053] Please refer to Figure 1 as shown, which specifically includes:

[0054] S1. Close the feed door of the silo. After waiting for the first period of time, open the feed door to feed at a preset feed valve degree. Start collecting the current data of the power motor in the pulverizing chamber during the first cycle to calculate the current average value I1 and the standard deviation, and obtain the current threshold I0 by adding several standard deviations to the current average value I1;

[0055] S2. Continuously collect the current data of the power motor, calculate the current average value I2 at the current moment by sliding window, and determine whether the current average value I2 exceeds the current threshold I0. If so, reduce the feed valve degree and restore the feed valve degree after waiting for the second period of time; if not, maintain the feed valve degree;

[0056] S3. After the power motor runs continuously for the third period of time, return to S1.

[0057] Among them, closing the feed door in S1 is to prevent the silo from feeding, and then opening the feed door to feed at a preset feed valve degree after waiting for the first period of time. The purposes are as follows: 1. If the equipment has just started, the starting current of the power motor is relatively large at this time, which will affect the selection of the current threshold and cause the current threshold to be set too large. Therefore, feeding starts after waiting for the first period of time. At this time, the power motor is already in a stable operating state, improving the setting accuracy of the current threshold; 2. If it returns to S1 after the power motor has run continuously for a period of time, and the current threshold is reset at this time, there may still be some stubborn fibers in the pulverizing chamber. If feeding directly, the material in the powder silo may be more than the actual feeding amount, and the set current threshold may also be on the high side. Therefore, by closing the feed door and waiting for the first period of time, the remaining digestion time of the stubborn fibers can be provided as much as possible, improving the setting accuracy of the current threshold. The time of the first period can be determined according to the starting time of the motor or according to empirical values. Here, the first period is taken as 1 minute.

[0058] After the power motor runs for a long time, temperature rise and heat generation may occur, the belt may wear, the change in belt heat generation may bring about a change in transmission efficiency, and the state of the crushing chamber may also change. Through the dynamic threshold method of S1, the threshold is updated regularly in a simple and effective way, effectively reducing the influence of these influencing factors on the current threshold and improving the accuracy.

[0059] In S1, by collecting the current data within the first period to calculate the current threshold I0, the influence of current fluctuations on the current threshold I0 can be reduced. In a feasible example, the standard deviation is taken as 3, and the first period is taken as 2 - 3 minutes. The preset material gate degree is set in advance according to the empirical values of the crushed raw materials.

[0060] In S2, the sliding window step size can be selected as 0.5 - 1 minute, and the value of the reduction amplitude of the material gate is executed according to the preset value. In a preferred embodiment, a corresponding value table is also established according to the crushed raw materials and the current difference, that is, for a specific herbaceous raw material, there are several difference intervals, and different difference intervals correspond to different material gate reduction values. For example, when the difference between the current mean value I2 and the current threshold I0 is greater than the first difference and less than the second difference, the material gate degree is reduced by the first reduction value; when the difference between the current mean value I2 and the current threshold I0 is greater than the second difference, the material gate degree is reduced by the second reduction value; the first reduction value is less than the second reduction value.

[0061] After the material gate is reduced, due to the reduction of the feed, the problem of raw material accumulation in the crushing chamber is solved at this time. Therefore, after waiting for the second duration, the material gate degree is restored. In this way, the crushing efficiency is taken into account while ensuring the crushing effect. In an optional example, the second duration is selected as 0.5 - 1 minute.

[0062] When the powder bin runs for a long time, some of its parameters or performances may change, such as the temperature rise caused by motor heating, etc. At this time, in order to ensure the accuracy of the current threshold I0, after the power motor runs continuously for the third duration, return to S1 to re - determine the current threshold I 0。

[0063] As a preferred embodiment, before feeding the herb raw materials into the silo, the herb raw materials are crushed to less than 2 mm, which is beneficial to reducing the load of the crushing silo. It can not only improve the uniformity of subsequent crushing, but also prevent the power motor from experiencing current fluctuations during the crushing process, and improve the accuracy of the control of the valve degree of the feed gate. In a more preferred embodiment, the moisture content of the herb raw materials is controlled at 5%-10%. If it is too low, there is a risk of dust explosion; if it is too high, it is easy to adhere, which is not conducive to crushing. In addition, it is further determined whether the fiber content of the herb raw materials is greater than 20%. If so, the rotor speed of the crushing silo is adjusted to 1500-2000 rpm; if not, the rotor speed of the crushing silo is adjusted to 2500-3500 rpm, reducing frictional heat generation while taking efficiency into account.

[0064] Furthermore, the present invention also configures a cooling unit for the crushing silo to suppress the temperature of the crushing silo and better retain the active ingredients. For herb raw materials with a fat content greater than 20%, the circulating water temperature is controlled to be less than 10 °C to reduce oil oxidation.

[0065] Example 2

[0066] On the other hand, the present invention provides a herb raw material crushing device for performing the herb raw material crushing method as described in Example 1, aiming to improve the problems of overheating and insufficient fineness that may be caused by the accumulation of herb powder. Please refer to Figure 2 As shown, specifically, it includes a crusher 100, a power unit 200 and a controller 400.

[0067] Among them, the crusher 100 includes a silo 110, a crushing silo 120 and a discharge silo 140. The silo 110 includes a feed gate 111 with an electric control valve degree, and the silo 110 feeds the crushing silo 120 through the feed gate 111;

[0068] The power unit 200 includes a power motor 210 and a current sensor 230. The power motor 210 provides power for the crushing silo 120, and the current sensor 230 monitors the current value of the power motor 210;

[0069] The controller 400 is used to obtain the monitoring value of the current sensor 230, calculate the current threshold I0, and control the valve degree of the feed gate 111 and the rotation speed of the power motor 210.

[0070] In a preferred embodiment, the power unit 200 further includes a voltage stabilizer 240. The voltage stabilizer 240 is arranged at the front end of the power motor 210 to provide a stable voltage for the power motor 210 and reduce the influence of voltage fluctuations on the working current of the power motor 210.

[0071] Please refer to Figures 3 - 5 As shown, it is a specific example of the present invention, which includes a power unit 200, a crusher 100 and a controller 400.

[0072] Among them, a dust-proof cover 220 is provided outside the power unit 200 to protect the power motor 210. The power motor 210 outputs power to the crusher 100 through belt drive to drive the rotor in the crushing chamber 120.

[0073] Please refer to Figure 6 As shown, the crusher 100 is a hammer mill 100, which sequentially includes a crushing chamber 120, an adjustment chamber 130, and a discharge chamber 140 from the feeding direction to the discharging direction. The rotating shaft 121 in the rotor passes through the crushing chamber 120, the adjustment chamber 130, and the discharge chamber 140 and is rotatably installed through two bearing seats 1214. One end of it receives the power of the power motor 210 through a pulley to realize rotation. The rotor further includes a pair of rotating shaft discs 122 fixed on the rotating shaft 121, a plurality of articulated rods 123 circumferentially installed on the rotating shaft discs 122, and a plurality of hammer heads 124 articulated on each articulated rod 123. The crushing chamber 120 is provided with a gear ring adapted to the rotor. Thus, when the rotor rotates, the hammer heads 124 and the gear ring cooperate to cut and grind the herbaceous raw materials to complete the crushing of the herbaceous raw materials.

[0074] Along the discharging direction, a pair of inclined air blades 125 and an inclined ring sleeve 132 are sequentially arranged in the adjustment chamber 130. The inclined air blades 125 are fixed on the rotating shaft 121. The inclined ring sleeve 132 is slidably arranged along the body of the adjustment chamber 130. The inclined ring sleeve 132 is sleeved outside the inclined air blades 125 to form a discharging gap with the edge of the inclined air blades 125. And a fan blade 126 fixed on the rotating shaft 121 is arranged in the discharge chamber 140. When the rotor rotates, the fan blade 126 rotates to generate a negative pressure for exhausting air outwards, sucking the pulverized powder after crushing into the discharge chamber 140 from the discharging gap, and then collecting it through a breathable cloth bag 150 at the discharge port of the discharge chamber 140. At the same time, the inclined air blades 125 will blow the herbaceous raw materials agitated by the negative pressure in the crushing chamber 120 back to the side of the hammer heads 124 to cut with the hammer heads 124.

[0075] An inclined adjustment groove 131 is provided on the body of the adjustment chamber 130. One end of the handle 133 is connected to the inclined ring sleeve 132. When the handle 133 slides up and down along the adjustment groove 131, the inclined ring sleeve 132 can be driven to move backward or forward, thereby changing the distance between the inclined ring sleeve 132 and the inclined air blades 125, and further controlling the mesh number of the powder. With this structure, since the inclined air blades 125 are in a rotating state, the discharging gap will not be blocked, so the blocking problem existing in the traditional filter screen structure will not occur, and the discharging can be more smooth.

[0076] Please refer to Figure 4As shown in the figure, the silo 110 is arranged above the crushing bin 120. The bottom of the silo 110 slopes downward at an angle of 3-5° towards the material gate 111. In this way, under the combined action of the negative pressure in the crushing bin 120 and the vibration generated by the swinging of the hammer head body 124 due to the rotation of the rotor, the powder in the silo 110 will enter the crushing bin 120 through the material gate 111 to complete the feeding. To facilitate the cleaning of the crushing bin 120, the upper cover of the crushing bin 120 is designed to be separable and fastened by quick-release bolts.

[0077] Please refer to Figure 4 and Figure 5 As shown in the figure, in this embodiment, the material gate 111 is arranged at the discharge port of the silo 110 through an electric push rod 1111 for lifting and lowering. Guide rods 1112 are arranged on both sides of the material gate 111. The controller 400 controls the lifting and lowering of the electric push rod 1111 to realize the control of the opening degree of the material gate 111.

[0078] Please refer to Figure 9. In a preferred embodiment, the hammer head body 124 is a symmetric body, and striking sides 1241 are arranged on both symmetric sides thereof. The symmetric arrangement facilitates the use after reversing when one side of the hammer head body 124 is worn. The striking side 1241 includes a flat striking section 1242 and a concave striking section 1243. Striking grooves are formed on the concave striking section 1243. The flat striking section 1242 and the concave striking section 1243 strike the flying material fines, increasing the movement speed of the material fines. Therefore, after hitting the gear ring, a better crushing effect is achieved. During the movement of the concave striking section 1243, the airflow inside the powdering equipment is further disturbed, promoting the collision between the material and the gear ring from multiple directions and improving the powdering efficiency. In this embodiment, the concave striking section 1243 is located on the side of the striking side 1241 close to the disturbance groove 1244, that is, the concave striking section 1243 is located at the inner bottom of the powdering equipment, which can form a better flow disturbance effect from the bottom. When the hammer head body 124 moves downward, a thrust in multiple directions is provided to the material. When the hammer head body 124 moves upward, the material sinking at the bottom is lifted, increasing the crushing frequency. In this embodiment, two grooves are formed on the concave striking section 1243.

[0079] At least one disturbing groove 1244 is formed at the front end of the hammer head body 124. The length of the opening of the disturbing groove 1244 is less than the length of the end face, and grinding protrusions 1245 are formed on both sides of the opening of the disturbing groove 1244. The grinding protrusions 1245 are adapted to the gear ring. In this way, during the rotation of the hammer head body 124, the end face and the external gear ring grind the material. And during the movement of the disturbing groove 1244 and the disturbing protrusions, a low-pressure area is formed in front of the front end face of the disturbing protrusions and in front of the inner side face of the disturbing groove 1244, increasing the air flow velocity in front of the front end face of the disturbing protrusions and in front of the inner side face of the disturbing groove 1244, thereby driving the material embedded between the external gear rings to separate from the gear ring, avoiding excessive accumulation in the gear ring gap, affecting the crushing effect of the gear ring on the material, and improving the crushing efficiency.

[0080] Furthermore, the disturbing groove 1244 runs through the hammer head body 124 in the left-right direction, enabling the air flow to flow out from both sides of the disturbing groove 1244, driving the material powder to move in a larger range, reducing the blockage of the material powder, and preventing the material powder from rising and then falling back between the gear rings. In this embodiment, there are two disturbing grooves 1244, and the two disturbing grooves 1244 are arranged at intervals in the end face length direction, effectively increasing the blowing effect on the material powder between the gear rings. In this embodiment, the front and rear side faces of the disturbing groove 1244 are both flat planes. Through the driving of the flat plane on the air flow, the air flow velocity in front of the inner side face of the disturbing groove 1244 is further increased, improving the blowing effect on the accumulated material.

[0081] In addition, the weight of the hammer head body 124 also affects the crushing efficiency. Specifically, lighter hammer pieces are suitable for crushing brittle and low-fiber materials (such as grains), but have less impact force, poor crushing effect on high-hardness or tough materials, may increase the number of repeated crushing times, and reduce the efficiency; while heavier hammer pieces have stronger impact force and can effectively crush fibrous and highly tough materials (such as herbaceous materials), but for brittle and low-fiber materials, they may be too heavy and may cause excessive crushing, generating too much fine powder. For food raw materials, it may also damage the nutritional components.

[0082] Therefore, in a more preferred embodiment, please refer to Figure 10 As shown, the crusher 100 further includes a counterweight 1247 detachably installed on the hammer head body 124. The hammer head body 124 is provided with an installation hole 1246 penetrating its left and right side faces. A clamping platform 12462 is formed by the inner concave of the edge of the installation hole 1246, and a clamping groove 12461 is formed by the inner concave of the hole wall of the installation hole 1246. The counterweight 1247 abuts against the clamping platform 12462 through the installation flange 12471 at its edge and is clamped in the clamping groove 12462 through the fastening ring 12472 circumferentially sleeved thereon. The fastening ring 12472 is made of a rubber ring, and the counterweight 1247 is made of different materials to obtain different weights, such as aluminum blocks, steel blocks, and tungsten nickel iron alloys.

[0083] Please refer to Figure 2 As shown, for some valuable raw materials or raw materials that are not easy to break, in order to further suppress the temperature rise and reduce the loss of nutrients, in a preferred embodiment, a cooling unit 300 is configured for the crushing bin 120 to suppress the temperature of the crushing bin 120.

[0084] Specifically, please refer to Figure 7 As shown, a first flow channel is formed in sequence between one end of the rotating shaft 121 and one of the rotating shaft disks 122 adjacent thereto, between one of the rotating shaft disks 122 and one end of the hollow inner cavity of the hinged rod 123, between the other end of the hollow inner cavity of the hinged rod 123 and the second rotating shaft disk 122, and between the second rotating shaft disk 122 and the other end of the rotating shaft 121. Water is respectively taken in and returned via the rotating joint 1213 at both ends of the first flow channel. A second flow channel 1271 is provided in the lower gear ring 127. The cooling unit 300 includes a water pump 310 and a water tank 320. The water pump 310 supplies water to the first flow channel and the second flow channel 1271, and the water tank 320 supplies water back to the first flow channel and the second flow channel 1271.

[0085] That is, the first water inlet 1211 and the first water outlet 1212 are respectively provided at both ends of the rotating shaft 121, but the two are not connected. The water pump 310 takes water into the first water inlet 1211 through the rotating joint 1213, and then the water is diverted through the diversion hole 1221 in the rotating shaft disk 122 that is connected to the first water inlet 1211. One end of the hollow inner cavity of the hinge rod 123 intersects with the diversion hole 1221 and is sealed (here sealed by an O-ring 1231), and then the other end of the hollow inner cavity of the hinge rod 123 intersects with the confluence hole 1222 in the rotating shaft disk 122 on the side and is sealed to achieve confluence. After confluence, the water is connected to the rotating joint 1213 through the first water outlet 1212 and then converges to the water tank 320.

[0086] Thus, the circulating water can take away the heat generated by the hammer body 124 swinging along the hinge rod 123 at high frequency through the hinge rod 123. That is, the cooling unit 300 of the present invention performs targeted cooling and heat dissipation for the hinge part, which is an easily overlooked heating blind spot, and effectively reduces the overheating of the powder.

[0087] Please refer to Figure 8 and Figure 11 As shown, the water pump 310 supplies water to the lower gear ring 127 through the second flow channel 1271, and further removes the heat generated during the crushing of the herbal raw materials through the lower gear ring 127. The second flow channel 1271 is arranged below the lower gear ring 127, and water enters from one side of the lower gear ring 127, and returns water to the water tank from the other side of the lower gear ring 127. The plate of the second flow channel 1271 is sealed with the lower gear ring 127 through a sealing strip 1272, and the plates are fastened by bolts.

[0088] Please refer to Figure 6As shown in the figure, in this embodiment, the water pump 310 can obtain the pumping power from the power motor 210 through belt drive. To prevent the output of the water pump 310 from being too large when the power motor 210 rotates at a high speed, which may cause excessive pressure in the cooling pipeline, an overflow valve 330 is provided at the water outlet of the water pump 310 to return the excess flow through the overflow valve 330 to the water tank 320.

[0089] Since the pipeline pressure of the second flow channel 1271 is relatively small, to prevent most of the water flow from passing through the second flow channel 1271 and affecting the cooling effect of the first flow channel, please refer to Figure 11 As shown in the figure, a pressure regulating valve 340 is provided at the front end of the water inlet of the second flow channel 1271 to adjust the pressure here, so that the water flow can be evenly distributed and pass through the first flow channel.

[0090] Embodiment 3

[0091] The present invention provides an application of a method for pulverizing herbaceous raw materials, aiming to improve the fineness and overheating problem of the obtained herbaceous powder, and enhance the taste and nutritional value of herbaceous foods.

[0092] Specifically, the herbaceous raw materials include Chinese yam, hawthorn, hemp seed, Poria cocos, Gorgon fruit, adzuki bean, liquorice, sesame, perilla, kudzu root, honeysuckle, ginseng, amomum fruit, rehmannia root, Ophiopogon japonicus, Dendrobium officinale, Ganoderma lucidum, cistanche, astragalus root, codonopsis pilosula, etc. Among them, Poria cocos, Dendrobium officinale, Ganoderma lucidum, etc. belong to high-fiber herbaceous raw materials, and hemp seed, sesame, etc. belong to high-fat herbaceous raw materials. Through the method for pulverizing herbaceous raw materials of the present invention, adhesion can be reduced and heat generation can be reduced during the pulverization process, thereby improving the uniformity and fineness of the powder, and at the same time retaining as many nutrients as possible.

[0093] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A method for pulverizing herbaceous raw materials, characterized in that, Including: S1. Close the feed door of the silo, wait for the first period of time, then open the feed door for feeding according to a preset feed valve degree, start collecting the current data of the power motor in the crushing chamber during the first cycle to calculate the current average value I1 and the standard deviation, and obtain the current threshold I0 by adding several standard deviations to the current average value I1; S2. Continuously collect the current data of the power motor, calculate the current average value I2 at the current moment by sliding window, and determine whether the current average value I2 exceeds the current threshold I0. If so, reduce the feed valve degree and wait for the second period of time before restoring the feed valve degree; if not, keep the feed valve degree; S3. After the power motor runs continuously for the third period of time, return to S1.

2. The herb raw material crushing method according to claim 1, characterized in that: Before feeding the herbaceous raw material into the silo, crush the herbaceous raw material to less than 2 mm and control the moisture content to 5%-10%; determine whether the fiber content of the herbaceous raw material is greater than 20%. If so, adjust the rotor speed of the crushing chamber to 1500-2000 rpm; if not, adjust the rotor speed of the crushing chamber to 2500-3500 rpm.

3. The herb raw material crushing method according to any one of claims 1-2, characterized in that: Configure a cooling unit for the crushing chamber to suppress the temperature of the crushing chamber; for herbaceous raw materials with a fat content greater than 20%, control the circulating water temperature to be less than 10°C.

4. A herb raw material crushing device, characterized in that, Including: A crusher, including a silo, a crushing chamber and a discharge silo, wherein the silo includes a feed door with an electric control valve degree; A power unit, the power unit includes a power motor and a current sensor, the power motor provides power for the crushing chamber, and the current sensor monitors the current value of the power motor; A controller for implementing the herbaceous raw material crushing method according to any one of claims 1-3.

5. The herb raw material crushing device according to claim 4, wherein: The power unit further includes a voltage stabilizer, and the voltage stabilizer is arranged at the front end of the power motor to provide stable voltage for the power motor.

6. The herb raw material crushing device according to claim 4, wherein: The silo is arranged above the crushing chamber, and the bottom of the silo is inclined downward at 3-5° towards the feed door.

7. The herb raw material crushing device according to claim 4, characterized in that: The crusher is a hammer crusher, and the crusher includes a plurality of hammer head bodies and a gear ring. The hammer head body is a symmetric body, and striking sides are arranged on both symmetric sides thereof. At least one disturbance groove is formed at the front end of the hammer head body, the notch length of the disturbance groove is less than the end face length, and grinding protrusions are formed on both sides of the notch of the disturbance groove, and the grinding protrusions are adapted to the gear ring.

8. The herb raw material crushing device according to claim 4, wherein: The crusher is a hammer crusher, and the crusher includes a plurality of hammer head bodies and counterweights detachably installed on the hammer head bodies. The hammer head body is provided with an installation hole penetrating through its left and right side faces. A clamping platform is formed by the inward concavity of the edge of the installation hole, and a clamping groove is formed by the inward concavity of the hole wall of the installation hole. The counterweight abuts against the clamping platform through the installation eaves at its edge and is clamped in the clamping groove through a tightening ring circumferentially sleeved thereon.

9. The herb raw material crushing device according to claim 4, characterized in that: The crusher is a hammer crusher, and the crusher includes a rotor and a lower gear ring. The rotor includes a rotating shaft, a pair of rotating shaft discs fixed on the rotating shaft, a plurality of hinged rods circumferentially installed on the rotating shaft discs, and a plurality of hammer head bodies hinged on the hinged rods. A first flow channel is sequentially formed between one end of the rotating shaft and one of the adjacent rotating shaft discs, between the one rotating shaft disc and one end of the hollow inner cavity of the hinged rod, between the other end of the hollow inner cavity of the hinged rod and the other rotating shaft disc, and between the other rotating shaft disc and the other end of the rotating shaft. The two ends of the first flow channel are respectively provided with water inlet and water return through rotary joints; a second flow channel is provided in the lower gear ring; and a cooling unit is further included. The cooling unit includes a water pump and a water tank. The water pump supplies water to the first flow channel and the second flow channel, and the water tank supplies the return water of the first flow channel and the second flow channel.

10. Application of a method for pulverizing herbaceous raw materials, characterized in that: The herb powder of the herb food is obtained by the herb raw material crushing method according to any one of claims 1-3.

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