Peanut butter production process, peanut crushing equipment and working method thereof

Abstract

The invention discloses a peanut butter production process which comprises the following steps: S1, impurity removal: removing impurities from peanut seeds; s2, baking: performing partitioned constant-temperature baking dehumidification on the peanut seeds by adopting a numerical control continuous baking oven; s3, cooling: quickly cooling the baked peanut seeds; s4, crushing: crushing the peanut seeds by using a crusher; s5, winnowing: blowing the peanuts with dry air, crushing, blanking, and removing crushed skins; s6, inflating and grinding, wherein a grinding machine is used for inflating nitrogen to grind the crushed peanut materials; and S7, degassing and filling: inputting the ground peanut butter into a degassing tank for vacuum degassing, and filling the peanut butter into a packaging bottle. According to the peanut butter production technology, the peanut crushing equipment and the working method of the peanut butter production technology, the peanut crushing equipment and the working method thereof, a method of firstly crushing and then winnowing to remove red skin is adopted, the peeling efficiency is improved, and material waste is little.

Description

Technical Field

[0001] The invention relates to the technical field of peanut butter production, and in particular to a peanut butter production process, peanut crushing equipment and a working method thereof. Background Art

[0002] Peanuts are important cash crops, oil crops and export crops in my country. They are also a traditional food loved by the Chinese people. They are not only nutritious, but also have the effects of soothing the spleen and stomach, moistening the lungs and reducing phlegm, replenishing the body and relieving cough, nourishing and regulating qi, clearing the throat, moistening the intestines, and promoting lactation. Therefore, they are known as "longevity nuts". The main components of peanut butter made from peanuts are fat and protein. Therefore, peanut butter not only has high nutritional value in quality and quantity, but also has a good taste. Peanut butter has a wide range of uses. It can not only be used as a kitchen condiment, but also an important component of cakes and bread.

[0003] In the related art, for example, the invention patent with publication number CN107668635A discloses a method for producing ultra-fine ground peanut butter, which comprises the following steps: (1) selection, selecting peanut kernels of good variety and full grains, and removing impurities, moldy and insect-bitten raw materials; (2) baking and peeling, placing the selected peanut kernels in an automatic continuous oven for baking, and conveying the peanut kernels to a peeling machine for peeling after cooling; (3) color sorting, using a photoelectric color sorter to automatically remove over-baked, moldy, unpeeled and other colored peanut kernels; (4) coarse grinding, crushing the peanuts into 3-5 mm particles, and then grinding them with a grinder; (5) fine grinding, subjecting the coarsely ground peanut kernels to a first fine grinding, cooling them to below 60 degrees, and then subjecting them to a second fine grinding; (6) metal detection, using a metal detector to perform metal detection and metal adsorption; (7) vacuum filling, conveying the processed peanut butter to a packaging machine for vacuum filling. The production method in the patented technical solution has high production efficiency, and the prepared peanut butter has a delicate taste and rich aroma.

[0004] The invention patent with publication number CN113575903A discloses a peanut butter production process, which includes the steps of screening, baking, peeling, color sorting, grinding, degassing and quantitative canning. The patented technical solution can reduce the bottle space occupied by the peanut butter after filling it into the bottle by degassing the peanut butter, thereby achieving the effect of increasing the utilization rate of the bottle.

[0005] The above patented technical solution and the existing actual production line of peanut butter both adopt the method of first baking, then cooling and then using a peeling machine to rub and remove the red skin of the peanuts. In this process, the red skin of the peanuts is completely removed, while the peanut kernels remain intact for the subsequent grinding process. However, since the size of the peanuts is not uniform, if a peeling machine is used for peeling, there is a certain roller gap between the two rubber rollers of the peeling machine and the two rollers are rubbed at a differential speed. When the peanuts of different sizes fall in the thresher, the red skin cannot be removed well for the smaller seeds. A color sorter is needed to remove them later, and a lot of materials are wasted. If the peanuts that need to be peeled are first screened and classified according to the size of the seeds and then input into the peeling machine, the above defects can be overcome. However, screening equipment needs to be added, and at least two peeling machines of different sizes are required, which increases the investment cost of production equipment.

[0006] In order to overcome the above problems, a new peanut butter production process is needed. Summary of the invention

[0007] The invention aims to provide a peanut butter production process, peanut crushing equipment and a working method thereof, which adopts a method of crushing first and then air separation to remove red skin, thereby improving the peeling efficiency and reducing material waste.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] The present invention provides a peanut butter production process, comprising the following steps:

[0010] S1, removing impurities from the peanut seed material;

[0011] S2, baking, using a CNC continuous oven to bake and dehumidify the peanut seeds in different zones at a fixed temperature;

[0012] S3, cooling, quickly cooling the roasted peanut seeds;

[0013] S4, crushing, using a crusher to crush the peanut seeds;

[0014] S5, air separation, using dry air to blow the peanuts after they are broken and remove the broken skins;

[0015] S6, aeration grinding, using a grinder filled with nitrogen to grind the peanut crumbs;

[0016] S7, degassing and filling, the ground peanut butter is input into the degassing tank for vacuum degassing and filled into packaging bottles.

[0017] Furthermore, the crusher used in the crushing in step S4 is a jaw crusher.

[0018] Furthermore, a color sorting process is provided between step S5 of air sorting and step S6 of aerated grinding, and moldy peanut fragments are removed by a color sorter; a sterilization process is added after step S6 of aerated grinding, and the peanut butter material is sterilized during the transportation process by infrared radiation.

[0019] The present invention provides a peanut crushing device, comprising a frame, a fixed jaw assembly, a driving mechanism, a movable jaw assembly and a push rod, wherein the fixed jaw assembly comprises a fixed jaw support plate and a fixed jaw plate, wherein the fixed jaw plate is detachably mounted on the inward surface of the fixed jaw support plate; the movable jaw assembly comprises a movable jaw support plate and a movable jaw plate, wherein the movable jaw plate is detachably mounted on the inward surface of the movable jaw support plate; the driving mechanism comprises a main shaft, wherein a sleeve hole at the top of the movable jaw support plate is mounted on an eccentric shaft section of the main shaft, and the push rod is auxiliaryly supported between the bottom end of the back of the movable jaw support plate and the frame.

[0020] Furthermore, it also includes a purge assembly, which includes an air nozzle and a nitrogen supply unit, the root of the air nozzle is installed on the upper part of the fixed jaw support plate, and the fixed jaw plate is provided with a clearance hole at the air nozzle installation position; the air outlet of the air nozzle faces the bottom gap between the fixed jaw plate and the movable jaw plate, and the other end of the air nozzle is connected to the nitrogen supply unit.

[0021] Furthermore, the movable jaw plate is made of a porous metal plate or a plate with oil seepage holes, and an oil return structure is provided on the movable jaw support plate, and the oil return structure recovers the peanut oil that penetrates into the inner surface of the movable jaw support plate.

[0022] Furthermore, the oil return structure includes a vertical oil guide groove, a confluence groove, an oil channel hole and an oil outlet hole. A plurality of the vertical oil guide grooves are evenly spaced and arranged at the lower middle part of the inner surface of the movable jaw support plate. The confluence groove is horizontally arranged at the mounting step at the bottom of the movable jaw support plate. The oil outlet hole is arranged at the bottom end of the movable jaw support plate and the outlet end is connected to the oil extraction pipeline through a pipe joint and a hose; the oil channel hole connects the confluence groove and the oil outlet hole.

[0023] Furthermore, the oil extraction pipeline is connected to a back-purge nitrogen component via a tee and a valve.

[0024] Furthermore, the fixed jaw plate is also made of a porous metal plate or a plate processed with oil seepage holes, and the fixed jaw plate is also provided with the oil return structure in accordance with the movable jaw support plate.

[0025] The invention also discloses a working method of a peanut crushing device. The peanut crushing device described in any one of the above items is used to crush peanut kernels, and the peanut oil remaining on the jaw plate can be recovered.

[0026] Compared with the prior art, the beneficial technical effects of the present invention are:

[0027] The peanut butter production process of the present invention adopts a process of first crushing and then air separation to remove the red skin. The peanut kernels after baking and cooling have crisp red skins. When entering the crusher for crushing, the crushed peanuts are also relatively crisp, and the red skins are easily separated from the peanut kernels. The crushed materials are blown out and dropped using the dry air blown out by the fan, and the broken skins are easily blown away. Compared with the existing peeling machine kneading peeling method, the situation of missed peeling of small-particle peanut kernels is reduced. The peanut butter production process of the present invention adopts a method of first crushing and then air separation to remove the red skins, which improves the peeling efficiency and reduces material waste. In addition, by reasonably using a jaw crusher to crush the peanut kernels, the jaw plate impacts and squeezes and crushes, and larger pieces of broken materials can be obtained, which is conducive to air separation to remove the broken skins. By adding a color sorter, the red skin broken materials that are not removed by air separation can be secondary removed, thereby improving the purity of the raw materials; by adding a sterilization process, aflatoxin is disinfected, and the food is safer.

[0028] The peanut crushing equipment of the present invention is convenient for cleaning, maintenance and replacement by providing a detachable fixed jaw plate and a movable jaw plate; an eccentric shaft section is provided to rotate in the sleeve hole at the top of the movable jaw support plate to drive the movable jaw plate to produce extrusion toward the fixed jaw plate and rubbing up and down, squeezing and rubbing at the same time, squeezing and crushing the peanut grains, and rubbing is conducive to peeling. In addition, by installing an air jet nozzle on the upper part of the fixed jaw support plate, when it is necessary to clean the broken skin and slag remaining on the fixed jaw plate and the movable jaw plate, the solenoid valve is opened to connect to the nitrogen supply unit, and the air jet nozzle sprays compressed dry clean nitrogen downward to remove the broken skin and slag remaining on the bottom working surface of the fixed jaw plate and the movable jaw plate, thereby reducing material blockage and improving crushing efficiency. At the same time, the injected nitrogen can isolate oxygen to prevent the residual peanut oil and slag from oxidizing and deteriorating on the jaw plate. By adding the back-purge nitrogen assembly, when it is necessary to clean the scraps and slag remaining on the movable jaw plate, in order to prevent the slag from clogging the oil seepage hole, back-purge is required, and the compressed dry clean nitrogen flows along the oil extraction pipeline, the oil outlet hole, the oil channel hole, the confluence groove and the oil guide vertical groove in the reverse direction, and is ejected from the oil seepage hole in the reverse direction to clean the blocked hole. By arranging the fixed jaw plate and the movable jaw support plate to be equipped with the oil return structure, the peanut oil remaining on the fixed jaw plate can also be recovered.

[0029] The working method of the peanut crushing equipment of the present invention adopts a plate that can penetrate grease as a jaw plate, which can recycle the peanut oil remaining on the jaw plate and avoid the adhesion of grease to the crushed skin. The jaw plate can be quickly and deeply cleaned by nitrogen reverse purge and surface purge to quickly restore the efficient crushing processing capacity. Before nitrogen reverse purge, the peanut oil remaining in the pores or oil seepage holes on the jaw plate and in the oil return structure is firstly extracted by negative pressure, thereby avoiding the waste caused by the peanut oil being purged and scattered. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Figure 1 This is a schematic diagram of the peanut butter production process of the present invention;

[0032] Figure 2 It is a schematic diagram of the internal front view structure of the peanut crushing device of the present invention;

[0033] Figure 3 for Figure 2 Partial cross-sectional view of the middle AA area;

[0034] Figure 4 for Figure 2 Schematic diagram of the local enlarged structure of part I in the middle.

[0035] Explanation of the reference numerals: 1. frame; 2. fixed jaw support plate; 3. fixed jaw plate; 4. main shaft; 401. eccentric shaft section; 5. flywheel; 6. movable jaw support plate; 601. vertical oil guide groove; 7. movable jaw plate; 8. push rod; 9. air jet; 10. oil outlet hole; 11. confluence groove; 12. oil channel hole. DETAILED DESCRIPTION

[0036] The core of the invention is to provide a peanut butter production process, peanut crushing equipment and a working method thereof, which adopts a method of first crushing and then air separation to remove the red skin, thereby improving the peeling efficiency and reducing material waste.

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0038] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] Example 1

[0040] The peanut butter production process of the present invention is as follows: Figure 1 As shown, the following steps are included:

[0041] S1, impurity removal, select high-quality peanut seeds with full grains, no mold, no insect bites as raw materials, remove impurities in the peanut seeds, and use metal adsorption, vibrating screen, wind specific gravity impurity remover to remove iron, stone, soil, broken shells and other impurities in the peanut seeds to ensure the purity of the raw materials.

[0042] S2, baking, using a CNC continuous oven to bake and dehumidify the peanut seeds at a fixed temperature in different zones; baking in tunnel zones, setting the maximum baking temperature of the peanuts to 170-180 degrees, and the baking time to 30 minutes, so that the moisture in the peanuts can be fully evaporated and the moisture content can be reduced.

[0043] S3, cooling, quickly cooling the roasted peanut seeds to about 20 degrees from room temperature. After the peanuts are cooled, the red skin of the peanuts will become crispy and easier to remove.

[0044] S4, crushing, crushing the peanut seeds with a crusher. The crushing here does not crush the peanut kernels into powder materials below 10 mesh, but crushes the peanut kernels into two halves or three or four petals, and sieves them with a 4-mesh sieve, most of which are on the sieve. The crusher can crush almost all peanut seeds regardless of the size of the kernels. Moreover, the red skin and kernel particles are easily separated during the crushing process.

[0045] S5, air separation, uses dry air to blow the peanuts after they are broken and fall off, removes the broken skin and the red skin.

[0046] S6, aeration grinding, using a grinder filled with nitrogen to grind the peanut crumbs, and the particle size after grinding is controlled below 200 meshes.

[0047] S7, degassing and filling, the ground peanut butter is input into the degassing tank for vacuum degassing. After degassing, it is filled into the packaging bottle using a filling machine and packaged for storage.

[0048] The present invention adopts a process of first crushing and then air separation to remove the red skin. The peanut kernels after baking and cooling have crisp red skins. When entering the crusher for crushing, the crushed peanuts are also relatively crisp, and the red skins are easily separated from the peanut kernels. The crushed materials are blown out and dropped using the dry air blown out by the fan, and the broken skins are easily blown away. Compared with the existing peeling machine's kneading peeling method, the situation of small-particle peanut kernels missing peeling is reduced. The peanut butter production process of the present invention adopts a method of first crushing and then air separation to remove the red skin, which improves the peeling efficiency and reduces material waste.

[0049] In a specific implementation of this embodiment, the crusher used in the crushing of step S4 is a jaw crusher. That is, the peanut seed material is crushed by the impact and extrusion of the jaw plate, rather than by double roller crushing or by the rotation and impact crushing of the knife shaft. Compared with the existing double roller and knife shaft crushers commonly used for peanuts, these two types of crushing particle sizes are smaller, and it is more reasonable to call them crushing. This crushing method will produce more powder, which is not conducive to the subsequent air separation and peeling.

[0050] By using jaw crusher to crush peanut kernels, the jaw plate can impact and squeeze the crushing to obtain larger pieces, which is conducive to air separation and removal of broken skin.

[0051] In a specific implementation of this embodiment, Figure 1 As shown, a color sorting process is set between step S5 air sorting and step S6 aeration grinding. The peeled peanut crumbs enter the photoelectric color sorter, so that the photoelectric color sorter removes over-baked, moldy peanut crumbs and crumbs with firmly bonded skins, and the peanut crumbs that pass the color sorting are transported backward. After step S6 aeration grinding, a sterilization process is added, and the peanut butter material in the transportation process is sterilized by infrared radiation, and the irradiation time is not less than 3 seconds.

[0052] By adding a color sorter, the red-skinned fragments that are not removed by wind separation can be removed for the second time, thereby improving the purity of the raw materials; by adding a sterilization process, aflatoxin can be disinfected, making food safer.

[0053] Example 2

[0054] The invention also discloses a peanut crushing device, such as Figures 2 to 4 As shown, it includes a frame 1, a fixed jaw assembly, a driving mechanism, a movable jaw assembly and a push rod 8. That is, the main structure is consistent with the existing small jaw crusher. The driving mechanism includes a reduction motor, a belt, a main shaft 4 and a flywheel 5. The reduction motor is installed on the frame 1 and drives the flywheel 5 to rotate through the belt and the pulley, and the main shaft 4 rotates coaxially with the flywheel 5. The fixed jaw assembly in the present invention includes a fixed jaw support plate 2 and a fixed jaw plate 3, and the fixed jaw plate 3 is detachably mounted on the inward surface of the fixed jaw support plate 2. The movable jaw assembly includes a movable jaw support plate 6 and a movable jaw plate 7, and the movable jaw plate 7 is detachably mounted on the inward surface of the movable jaw support plate 6. The peanut seed material is impacted, squeezed and crushed between the fixed jaw plate 3 and the movable jaw plate 7. The sleeve hole at the top of the movable jaw support plate 6 is installed on the eccentric shaft section 401 of the main shaft 4, and the push rod 8 is auxiliary supported between the bottom end of the back of the movable jaw support plate 6 and the frame 1.

[0055] The detachable fixed jaw plate 3 and movable jaw plate 7 are provided to facilitate cleaning, maintenance and replacement; the eccentric shaft section 401 is provided to rotate and drive the movable jaw plate 7 in the sleeve hole on the top of the movable jaw support plate 6 to produce squeezing and up and down rubbing toward the fixed jaw plate 3, squeezing and rubbing at the same time, squeezing and crushing the peanut kernels, and the rubbing is beneficial to peeling.

[0056] In a specific implementation of this embodiment, Figure 2 As shown, the peanut crushing device of the present invention also includes a purge assembly, which includes an air nozzle 9 and a nitrogen supply unit. The root of the air nozzle 9 is installed on the upper part of the fixed jaw support plate 2 by threaded connection, and the fixed jaw plate 3 is provided with a clearance hole at the installation position of the air nozzle 9. The air outlet of the air nozzle 9 faces the bottom gap between the fixed jaw plate 3 and the movable jaw plate 7, and the other end of the air nozzle 9 is connected to the nitrogen supply unit. The nitrogen supply unit can be a nitrogen generating device or a nitrogen storage bottle, and is provided with a solenoid valve to control the cut-off and connection of the compressed dry clean nitrogen.

[0057] Obviously, the air jet nozzle 9 can be one, using a flat air outlet nozzle; or it can be a plurality of air jet nozzles 9 arranged in a row, the roots of which are connected by a converging main pipe, and the air jets are emitted or stopped at the same time.

[0058] By installing an air nozzle 9 on the upper part of the fixed jaw support plate 2, when it is necessary to clean the remaining broken skin and slag materials adhering to the fixed jaw plate 3 and the movable jaw plate 7, the solenoid valve is opened to connect the nitrogen supply unit, and the air nozzle 9 sprays compressed dry clean nitrogen downward to remove the broken skin and slag materials remaining on the bottom working surface of the fixed jaw plate 3 and the movable jaw plate 7, thereby reducing material blockage and improving crushing efficiency. At the same time, the injected nitrogen can isolate oxygen to prevent the residual peanut oil and slag materials from oxidizing and deteriorating on the jaw plate.

[0059] In a specific implementation of this embodiment, Figure 2 and Figure 3 As shown, the movable jaw plate 7 is made of a porous metal plate or a plate with oil seepage holes, that is, the movable jaw plate 7 is made of a porous iron-based powder metallurgy plate. The pores of this powder metallurgy material are interconnected, which is convenient for peanut oil to penetrate from the outside to the inside. The movable jaw plate 7 can also be made of a 304 stainless steel plate, and the stainless steel plate is densely covered with a plurality of oil seepage holes. The diameter of the oil seepage holes is not more than 2 mm and can be processed by drilling or electric spark punching. The oil seepage holes are perpendicular to the large surface of the stainless steel plate and are through holes. An oil return structure is provided on the movable jaw support plate 6, and the oil return structure recovers the peanut oil that penetrates into the inner surface of the movable jaw support plate 6.

[0060] Specifically, if Figure 3 and Figure 4As shown, the oil return structure includes an oil guide vertical groove 601, a confluence groove 11, an oil channel hole 12 and an oil outlet hole 10. A plurality of oil guide vertical grooves 601 are arranged at equal intervals in the lower and middle part of the inner surface of the movable jaw support plate 6, and the confluence groove 11 is arranged horizontally at the installation step at the bottom of the movable jaw support plate 6, and the confluence groove 11 cleans the root of the step. The oil outlet hole 10 is arranged at the bottom end of the movable jaw support plate 6 and the outlet end is connected to the oil extraction pipeline through a pipe joint and a hose. The end of the oil extraction pipeline is connected to a temporary oil storage tank, and a negative pressure extraction pump is arranged on the temporary oil storage tank, and the negative pressure extraction pump assists in extracting oil from the oil extraction pipeline. The oil channel hole 12 connects the confluence groove 11 and the oil outlet hole 10. It should be noted that the top of the oil channel hole 12 is located at the lowest point of the confluence groove 11.

[0061] Specifically, the oil extraction pipeline is connected to a back-purge nitrogen assembly through a tee and a valve. The back-purge nitrogen assembly includes a solenoid valve and another nitrogen supply unit. Obviously, the back-purge nitrogen assembly can also share a nitrogen supply unit with the purge assembly.

[0062] Specifically, if Figure 1 As shown, the fixed jaw plate 3 is also made of a porous metal plate or a plate with oil seepage holes, and the fixed jaw plate 3 and the movable jaw supporting plate 6 are also provided with the oil return structure.

[0063] By adding the back-purge nitrogen assembly, when it is necessary to clean the remaining skin and slag on the movable jaw plate 7, in order to prevent the slag from clogging the oil seepage hole, back-purge is required, and the compressed dry clean nitrogen flows along the oil extraction pipeline, the oil outlet hole 10, the oil channel hole 12, the confluence groove 11 and the oil guide vertical groove 601 in the reverse direction, and is ejected from the oil seepage hole in the reverse direction to clean the blocked channel. At the same time, nitrogen filling the channel can also reduce the oxidation and mildew of oil, ensuring food safety and hygiene. By setting the fixed jaw plate 3 and the movable jaw support plate 6 to be consistent with the oil return structure, the peanut oil remaining on the fixed jaw plate 3 can also be recovered.

[0064] The working principle of the peanut crushing equipment of the present invention is as follows: the peanut kernels cooled to room temperature are put in from the V-shaped top openings of the fixed jaw plate 3 and the movable jaw plate 7. Driven by the driving mechanism, the eccentric shaft section 401 rotates in the sleeve hole at the top of the movable jaw support plate 6, thereby driving the movable jaw plate 7 to produce reciprocating extrusion and up and down rubbing toward the fixed jaw plate 3. During the falling process of the peanut kernels in the equipment, the passive jaw plate 7 squeezes and rubs relative to the fixed jaw plate 3, impacting and squeezing the peanut kernels, and the rubbing is conducive to removing the red skin. During the extrusion and crushing process, peanut oil will inevitably be coated on the fixed jaw plate 3 and the movable jaw plate 7. The peanut oil on the surface penetrates through the pores or the oil seepage holes to the back of the fixed jaw plate 3 and the movable jaw plate 7, and is collected downward along the oil vertical groove 601, flows into the confluence groove 11, passes through the oil channel hole 12, enters the oil outlet hole 10, and finally slowly flows into the oil extraction pipeline and enters the temporary oil tank for collection. After working for a period of time, when it is necessary to clean the broken skin and slag on the surface of the fixed jaw plate 3 and the movable jaw plate 7, the negative pressure extraction pump starts working first, and the peanut oil remaining in the oil vertical groove 601, the confluence groove 11, the oil channel hole 12 and the oil outlet hole 10 is negatively pumped to the temporary oil tank so that the peanut oil remaining at the front end of the back-purge nitrogen component is minimized. Then the negative pressure extraction pump stops working, the solenoid valves of the purge component and the back-purge nitrogen component are connected, and the back-purge nitrogen component supplies compressed dry clean nitrogen to flow through part of the oil extraction pipeline, the oil outlet hole 10, the oil channel hole 12, the confluence groove 11 and the oil guide vertical groove 601 in reverse impact, and sprays out from the oil seepage hole or pore in reverse to clean the blocked channel. At the same time, the air nozzle 9 sprays compressed dry clean nitrogen downward to remove the broken skin and slag remaining on the bottom working surface of the fixed jaw plate 3 and the movable jaw plate 7, reducing the blockage of the working port material and improving the crushing efficiency.

[0065] The peanut crushing equipment of the present invention is convenient for cleaning, maintenance and replacement by providing a detachable fixed jaw plate 3 and a movable jaw plate 7; the eccentric shaft section 401 is provided to rotate and drive the movable jaw plate 7 in the sleeve hole at the top of the movable jaw support plate 6 to produce extrusion toward the fixed jaw plate 3 and rubbing up and down, squeezing and rubbing at the same time, squeezing and crushing the peanut grains, and rubbing is conducive to peeling. In addition, by installing an air nozzle 9 on the upper part of the fixed jaw support plate 2, when it is necessary to clean the broken skin and slag remaining on the fixed jaw plate 3 and the movable jaw plate 7, the solenoid valve is opened to connect the nitrogen supply unit, and the air nozzle 9 sprays compressed dry clean nitrogen downward to remove the broken skin and slag remaining on the bottom working surface of the fixed jaw plate 3 and the movable jaw plate 7, thereby reducing material blockage and improving crushing efficiency. At the same time, the injected nitrogen can isolate oxygen to prevent the residual peanut oil and slag from oxidizing and deteriorating on the jaw plate. By adding the back-purge nitrogen assembly, when it is necessary to clean the remaining skin and slag on the movable jaw plate 7, in order to prevent the slag from clogging the oil seepage hole, back-purge is required, and the compressed dry clean nitrogen flows along the oil extraction pipeline, the oil outlet hole 10, the oil channel hole 12, the confluence groove 11 and the oil guide vertical groove 601 in the reverse direction, and is ejected from the oil seepage hole in the reverse direction to clean the blocked channel. By arranging the fixed jaw plate 3 to be consistent with the movable jaw support plate 6 and also equipped with the oil return structure, the peanut oil remaining on the fixed jaw plate 3 can also be recovered.

[0066] Example 3

[0067] The present invention also discloses a working method of a peanut crushing device, which uses the peanut crushing device described in the above-mentioned embodiment 2 to crush peanut kernels, adopts a plate capable of permeating oil and fat as a jaw plate, and can recover the peanut oil remaining on the jaw plate.

[0068] In a specific implementation of this embodiment, when the crushing equipment needs to clean the jaw plate, nitrogen reverse blowing and surface blowing are used for simultaneous cleaning. Nitrogen reverse blowing can effectively prevent the blockage of pores or oil seepage holes on the jaw plate, and surface blowing can reduce the residual skin and slag on the plate surface.

[0069] Specifically, before the nitrogen reverse purge, the peanut oil remaining in the pores or oil seepage holes on the jaw plate and in the oil return structure is firstly extracted under negative pressure to reduce the residue and avoid the residual peanut oil being sprayed out by reverse purge, causing waste.

[0070] By using a plate that can penetrate grease as the jaw plate, the peanut oil remaining on the jaw plate can be recycled and reused, and the adhesion of grease to the crushed skin can be avoided. The jaw plate can be quickly and deeply cleaned by nitrogen reverse purge and surface purge to quickly restore the efficient crushing processing capacity. Before nitrogen reverse purge, the peanut oil remaining in the pores or oil seepage holes on the jaw plate and in the oil return structure is first extracted by negative pressure, avoiding the waste of peanut oil caused by purging and scattering.

[0071] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0072] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A peanut butter production process, characterized in that: The following steps are involved: S1, removing impurities from the peanut seed material; S2, baking, using a CNC continuous oven to bake and dehumidify the peanut seeds in different zones at a fixed temperature; S3, cooling, quickly cooling the roasted peanut seeds; S4, crushing, using a crusher to crush the peanut seeds; S5, air separation, using dry air to blow the peanuts after they are broken and remove the broken skins; S6, aeration grinding, using a grinder filled with nitrogen to grind the peanut crumbs; S7, degassing and filling, the ground peanut butter is input into the degassing tank for vacuum degassing and filled into packaging bottles.

2. The peanut butter production process according to claim 1, characterized in that: The crusher used in step S4 is a jaw crusher.

3. The peanut butter production process according to claim 1, characterized in that: A color sorting process is provided between step S5 air sorting and step S6 aeration grinding, and moldy peanut fragments are removed by a color sorter; a sterilization process is added after step S6 aeration grinding, and the peanut butter material in the transportation process is sterilized by infrared radiation.

4. A peanut crushing device, comprising a frame (1), a fixed jaw assembly, a driving mechanism, a movable jaw assembly and a push rod (8), characterized in that: The fixed jaw assembly comprises a fixed jaw support plate (2) and a fixed jaw plate (3), wherein the fixed jaw plate (3) is detachably mounted on the inward surface of the fixed jaw support plate (2); the movable jaw assembly comprises a movable jaw support plate (6) and a movable jaw plate (7), wherein the movable jaw plate (7) is detachably mounted on the inward surface of the movable jaw support plate (6); the driving mechanism comprises a main shaft (4), wherein the sleeve hole at the top of the movable jaw support plate (6) is mounted on the eccentric shaft section (401) of the main shaft (4), and the push rod (8) is auxiliary supported between the bottom end of the back of the movable jaw support plate (6) and the frame (1).

5. The peanut crushing device according to claim 4, characterized in that: The invention also comprises a purge assembly, the purge assembly comprising an air nozzle (9) and a nitrogen supply unit, the root of the air nozzle (9) being mounted on the upper part of the fixed jaw support plate (2), the fixed jaw plate (3) being provided with a clearance hole at the mounting position of the air nozzle (9); the air outlet of the air nozzle (9) is oriented toward the bottom gap between the fixed jaw plate (3) and the movable jaw plate (7), and the other end of the air nozzle (9) is connected to the nitrogen supply unit.

6. The peanut crushing device according to claim 4, characterized in that: The movable jaw plate (7) is made of a porous metal plate or a plate with oil seepage holes, and the movable jaw support plate (6) is provided with an oil return structure, which recovers the peanut oil that has seeped into the inner surface of the movable jaw support plate (6).

7. The peanut crushing device according to claim 6, characterized in that: The oil return structure comprises an oil guide vertical groove (601), a confluence groove (11), an oil channel hole (12) and an oil outlet hole (10); a plurality of the oil guide vertical grooves (601) are arranged at equal intervals in the middle and lower part of the inner surface of the movable jaw support plate (6); the confluence groove (11) is horizontally arranged at the mounting step at the bottom of the movable jaw support plate (6); the oil outlet hole (10) is arranged at the bottom end of the movable jaw support plate (6) and the outlet end is connected to the oil extraction pipeline through a pipe joint and a hose; the oil channel hole (12) is connected to the confluence groove (11) and the oil outlet hole (10).

8. The peanut crushing device according to claim 7, characterized in that: The oil extraction pipeline is connected with a back-purge nitrogen component through a tee and a valve.

9. The peanut crushing device according to any one of claims 6 to 8, characterized in that: The fixed jaw plate (3) is also made of a porous metal plate or a plate with oil seepage holes. The fixed jaw plate (3) is also provided with the oil return structure in the same manner as the movable jaw support plate (6).

10. A peanut crushing equipment working method, characterized in that: The peanut crushing device described in any one of claims 6 to 9 is used to crush peanut kernels, and the peanut oil remaining on the jaw plate can be recovered.

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