Bean product pulping device and pulping process

Abstract

The soybean product pulping device comprises a shelling and crushing mechanism, the shelling and crushing mechanism comprises a discharging mechanism, a first lifting conveyor, a primary crusher, a spiral conveyor, a separation mechanism, a second lifting conveyor and a secondary crusher which are sequentially arranged from a discharging port to a feeding port, and a crushed soybean storage tank is arranged at a discharging port of the secondary crusher; a third lifting conveyor abuts against the interior of the broken bean storage tank and is connected with a broken bean water adding mechanism; the bean breaking and water adding mechanism comprises a quantitative discharging mechanism arranged at a discharging port of the third lifting conveyor, a discharging port of the quantitative discharging mechanism is connected with a rolling pulverizer, a discharging port of the rolling pulverizer is connected with a material and water mixing mechanism, and the material and water mixing mechanism is connected with a conveying pump; by means of the design, the defect that soybeans can be ground only after being soaked for a long time in advance in an existing pulping process is overcome, and the technical problem that the product quality and the yield are affected by microorganisms generated in the soaking process is avoided.

Description

Technical Field

[0001] The invention relates to the field of bean product processing, and in particular to a bean product pulping device and a pulping process. Background Art

[0002] Tofu contains a variety of trace elements necessary for the human body and rich high-quality protein, and is known as "vegetable meat". The digestion and absorption rate of tofu is over 95%. Tofu production includes two steps: one is pulping, which is to make soybean milk from soybeans; the other is coagulation, which is to coagulate the soybean milk into a gel containing a large amount of water under the combined action of heat and coagulant, namely tofu.

[0003] Because the outer skin of soybeans contains a large amount of cellulose and anti-nutrients, if they are not soaked, it is difficult for existing equipment to crush and extract these substances, which will affect the taste and nutritional value of soy milk and affect the product yield. The traditional pulping process requires soaking soybeans in clean water for at least 8 to 12 hours, but the soaking process will produce microorganisms that affect product quality and yield, and soaking will produce a large amount of sewage, wasting water resources.

[0004] In order to reduce costs, our company provides a soy product pulping device and pulping process to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects in the prior art and provide a soy product pulping device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A bean product pulping device, comprising a shelling and crushing mechanism and a crushed bean water adding mechanism;

[0008] The shelling and crushing mechanism includes a discharge mechanism, a first lifting conveyor, a primary crusher, a screw conveyor, a separation mechanism, a second lifting conveyor and a secondary crusher arranged in sequence from the discharge port to the feed port. The discharge port of the secondary crusher is provided with a crushed bean storage trough, and the crushed bean storage trough is abutted with a third lifting conveyor, and the third lifting conveyor is connected to the crushed bean water adding mechanism;

[0009] The crushed bean water adding mechanism comprises a quantitative feeding mechanism arranged at the discharge port of the third lifting conveyor, the discharge port of the quantitative feeding mechanism is connected to the roller crusher, the discharge port of the roller crusher is connected to the material-water mixing mechanism, and the material-water mixing mechanism is connected to the conveying pump.

[0010] Preferably, the discharge mechanism comprises a soybean storage hopper, a discharge valve is provided at the discharge port of the soybean storage hopper, and the first lifting conveyor is provided below the discharge valve.

[0011] Preferably, the separation mechanism comprises a vibration separator arranged below the discharge port of the screw conveyor, the vibration separator is connected to the cyclone separator through a fan, and a bean shell bucket is provided below the discharge port of the cyclone separator.

[0012] Preferably, the material-water mixing mechanism comprises a stirrer arranged below the discharge port of the roller crusher, the inlet of the stirrer is connected to the constant pressure water tank, and the discharge port of the stirrer is connected to a delivery pump.

[0013] Preferably, the crushed bean storage trough is provided with a slope, the lowest point of the slope abuts against one end of the third lifting conveyor, and the other end of the third lifting conveyor is arranged above the quantitative unloading mechanism of the crushed bean water adding mechanism.

[0014] Preferably, the roller crusher comprises a body with an opening at the bottom, in which two rollers are arranged at intervals of (0.05-0.1) mm, the two rollers pass through the body and are connected to the output ends of two rotating motors respectively, and the top of the body is connected to a feeding barrel.

[0015] A soy product pulping process, in which a pulping device is used in the pulping process, specifically comprises the following steps:

[0016] 1) Bean husk separation: Use the primary crusher to crush the soybeans into broken beans, and use the separation mechanism to separate the bean husk from the broken beans;

[0017] 2) Preparing finely crushed beans: grinding the crushed beans twice using a secondary crusher to prepare finely crushed beans;

[0018] 3) Preparing flaky crushed beans: crushing the crushed beans by roller crushing to prepare flaky crushed beans;

[0019] 4) Mixing material and water to make pulp: Add flaky crushed beans into the mixer by using a quantitative feeding mechanism, and the mixer is stirred. At the same time, water is added to the mixer by using a constant pressure water tank. The ratio of flaky crushed beans to water is (1:3-1;6), and soy milk is obtained.

[0020] Preferably, the bean husk separation in step 1) is specifically as follows: the crushed beans after the initial grinding are shelled once by a vibrating separator, the shelled crushed beans are sent to a secondary crusher by a second lifting conveyor, the shelled bean husks are sent to a cyclone separator by a fan for shelling again, and the shelled bean husks are stored in a bean husk bucket.

[0021] Preferably, the flaky crushed beans prepared by the roller crusher have a particle size of (20-40) mesh.

[0022] Preferably, the outer surfaces of the two rollers of the roller crusher are provided with diamond patterns, and the two rollers rotate relative to each other at a speed of (1000-2900) r / min.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The existing soybean pulping process is improved. The soybeans are shelled and crushed by a shelling and crushing mechanism, and the crushed beans are further ground by a crushed bean adding mechanism and water is added to make them into a pulp. The original pulping process requires the soybeans to be soaked in clean water for at least 8 to 12 hours. Microorganisms will be generated during the soaking process to affect the product quality, and a large amount of sewage will be generated. However, the present invention does not require soaking beans, does not generate sewage, saves water, reduces sewage discharge, and the prepared product has the same taste as tofu obtained by soaking beans and pulping, thereby solving the problem that microorganisms generated during the soaking process affect product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the shelling and crushing mechanism of the present invention;

[0026] Figure 2 This is a schematic diagram of the bean crushing and water adding mechanism of the present invention;

[0027] Figure 3 This is a pulping process flow chart of the present invention;

[0028] Figure 4 It is a schematic diagram of the roller and its diamond-shaped pattern structure of the present invention.

[0029] In the figure: 11, discharge mechanism; 111, soybean storage hopper; 112, discharge valve; 12, first lifting conveyor; 13, primary crusher; 14, screw conveyor; 15, separation mechanism; 151, vibration separator; 152, cyclone separator; 153, fan; 154, bean shell bucket; 16, second lifting conveyor; 17, secondary crusher; 18, crushed bean storage trough; 19, third lifting conveyor; 21, quantitative feeding mechanism; 22, roller crusher; 221, roller; 23, material-water mixing mechanism; 231, mixer; 232, constant pressure water tank; 24, conveying pump; 25, back-end processing equipment. DETAILED DESCRIPTION

[0030] A preferred embodiment of the present invention will be described below in conjunction with the accompanying drawings to clearly and completely describe the technical solution in a preferred embodiment of the present invention.

[0031] Embodiment 1:

[0032] A bean product pulping device, comprising a shelling and crushing mechanism and a crushed bean water adding mechanism;

[0033] The shelling and crushing mechanism includes a discharge mechanism 11, a first lifting conveyor 12, a primary crusher 13, a screw conveyor 14, a separation mechanism 15, a second lifting conveyor 16 and a secondary crusher 17 which are arranged in sequence from the discharge port to the feed port. The discharge port of the secondary crusher 17 is provided with a crushed bean storage trough 18, and a third lifting conveyor 19 is abutted in the crushed bean storage trough 18. The third lifting conveyor 19 is connected to the crushed bean water adding mechanism.

[0034] The crushed bean water adding mechanism includes a quantitative feeding mechanism 21 arranged at the discharge port of the third lifting conveyor 19, the discharge port of the quantitative feeding mechanism 21 is connected to the roller crusher 22, the discharge port of the roller crusher 22 is connected to the material-water mixing mechanism 23, and the material-water mixing mechanism 23 is connected to the conveying pump 24.

[0035] The present invention improves the existing soybean pulping process through the above design. The soybeans are shelled and crushed by the shelling and crushing mechanism, and the crushed beans are further ground by the crushed beans adding water to make them into a pulp. The specific process is as follows:

[0036] The soybean raw material is put into the first lifting conveyor 12 by the discharging mechanism 11 and transported to the primary crusher 13. After the primary crusher 13 crushes the soybeans, the screw conveyor 14 transports the crushed beans to the separation mechanism 15. After the separation mechanism 15 separates the bean shells from the crushed beans, the second lifting conveyor 16 transports the shelled crushed beans to the secondary crusher 17 for secondary grinding. The ground finely crushed beans are stored in the crushed bean storage tank 18.

[0037] The third lifting conveyor 19 then conveys the crushed beans after the second grinding to the quantitative feeding mechanism 21, and the quantitative feeding mechanism 21 quantitatively feeds the crushed beans to the roller crusher 22. After the roller crusher 22 rolls the crushed beans into thin flakes, the flake-like crushed beans are conveyed to the material-water mixing mechanism 23 to be made into a slurry. Finally, the conveying pump 24 pumps the soybean pulp to the next processing location.

[0038] The original pulping process requires soaking soybeans in clean water for at least 8 to 12 hours. Microorganisms will be generated during the soaking process, affecting product quality, and soaking will produce a large amount of sewage. However, the present invention does not require soaking beans for a long time, does not produce a large amount of sewage, saves water, reduces sewage discharge, and the product has the same taste as tofu obtained by soaking beans and pulping, thereby solving the problem of microorganisms generated during the soaking process affecting product quality.

[0039] Specifically, the discharge mechanism 11 includes a soybean storage hopper 111 , a discharge valve 112 is provided at the discharge port of the soybean storage hopper 111 , and the first lifting conveyor 12 is provided below the discharge valve 112 .

[0040] Specifically, the separation mechanism 15 includes a vibration separator 151 disposed below the discharge port of the screw conveyor 14 . The vibration separator 151 is connected to the cyclone separator 152 via a fan 153 . A bean shell bucket 154 is disposed below the discharge port of the cyclone separator 152 .

[0041] Through the above design, the vibration separator 151 of the present invention shells the crushed beans after the first grinding, and the crushed beans after the first shelling are sent to the secondary crusher 17 by the second lifting conveyor 16 for secondary grinding, and the fan 153 sends the bean shells separated by the vibration separator 151 to the cyclone separator 152 for further shelling, thereby ensuring the maximum utilization of raw materials and preventing waste of resources.

[0042] Specifically, the material-water mixing mechanism 23 includes a stirrer 231 disposed below the discharge port of the roller crusher 22 , the feed inlet of the stirrer 231 is connected to a constant pressure water tank 232 , and the discharge port of the stirrer 231 is connected to a delivery pump 24 .

[0043] Through the above design, the present invention quantitatively adds water and materials through the quantitative feeding mechanism 21 and the constant pressure water tank 232, controls the bean-water ratio to maintain a constant concentration, and ensures the yield.

[0044] Specifically, the crushed bean storage trough 18 is provided with a slope, the lowest point of the slope abuts against one end of the third lifting conveyor 19, and the other end of the third lifting conveyor 19 is arranged above the quantitative unloading mechanism 21 of the crushed bean water adding mechanism.

[0045] Through the above design, the present invention allows the crushed beans in the crushed bean storage tank 18 to roll down to the feeding port of the third lifting conveyor 19 by their own gravity, and assists the third lifting conveyor 19 to quickly convey the crushed beans to the quantitative feeding mechanism 21.

[0046] Specifically, the roller crusher 22 includes a body with an opening at the bottom, in which two rollers 221 are arranged at intervals of (0.05-0.1) mm. The two rollers 221 pass through the body and are connected to the output ends of two rotating motors respectively. The top of the body is connected to a feeding barrel.

[0047] Through the above design, the quantitative feeding mechanism 21 of the present invention feeds the crushed beans to the roller crusher 22 as needed, and the roller crusher 22 rolls the crushed beans into powder and then conveys them to the material-water mixing mechanism 23 to be made into a slurry.

[0048] Embodiment 2:

[0049] The present invention provides a soy product pulping process, wherein a pulping device is used in the pulping process, and specifically comprises the following steps:

[0050] 1) Bean husk separation: The soybeans are crushed by the primary crusher 13 to make crushed beans, and the husks are separated from the crushed beans by the separation mechanism 15;

[0051] 2) Preparing finely crushed beans: grinding the crushed beans twice using a secondary crusher 17 to prepare finely crushed beans;

[0052] 3) Preparing flaky crushed beans: using a roller crusher 22 to crush the fine crushed beans to prepare flaky crushed beans;

[0053] 4) Mixing material and water to make pulp: thin flake crushed beans are added into the mixer 231 by using the quantitative feeding mechanism 21, and the mixer 231 is stirred. At the same time, water is added into the mixer 231 by using the constant pressure water tank 232. The ratio of thin flake crushed beans to water is (1:3-1;6), and soy milk is obtained.

[0054] Through the above design, the present invention first peels the soybean raw material and makes it into crushed beans, then makes the crushed beans into fine crushed beans, and then rolls and crushes the fine crushed beans into thin flake crushed beans. The roller crusher 22 prepares the thin flake crushed beans and the constant pressure water tank 232 adds water quantitatively at the same time. The ratio of thin flake crushed beans to water is (1:3-1; 6) to prepare soy milk. The pulping process of the present invention does not require soaking beans, does not generate sewage, saves water, reduces sewage discharge, and the prepared product has the same taste as tofu obtained by soaking beans and pulping, thereby solving the problem of microorganisms generated in the soaking process affecting product quality.

[0055] Table 1 is a comparison table of water costs between the pulping process of the present invention and the soaking soybean pulping process

[0056]

[0057] Specifically, the step 1) bean husk separation is as follows: the crushed beans after the initial grinding are shelled once by the vibrating separator 151, the shelled crushed beans are sent to the secondary crusher 17 by the second lifting conveyor 16, the shelled bean husks are sent to the cyclone separator 152 by the fan 153 for shelling again, so as to maximize the yield, and the shelled bean husks are stored in the bean husk bucket 154.

[0058] Through the above design, the present invention uses the primary crusher 13 to vibrate and crush the soybeans during the first shelling process, and the separation mechanism 15 separates the bean shells from the broken beans. There are residual broken beans in the separated bean shells. In order to purify the residual broken beans, the bean shells after the first shelling are sent to the cyclone separator 152 for shelling again, and the broken beans after the second shelling are placed in the broken bean storage tank 18 for storage, and the bean shells are stored in the bean shell bucket 154, so as to maximize the utilization of the soybean raw materials.

[0059] Specifically, the flaky crushed beans produced by the roller crusher 22 have a particle size of (20-40) mesh.

[0060] Table 2 is a comparative table of the effects of the particle size of the flaky crushed beans on the tofu yield and various parameters of the present invention.

[0061]

[0062] In the present invention, the particle size of the flaky crushed beans is larger than 40 meshes. If the particles are too large, the protein cannot be completely extracted, affecting the yield of the final product. If the particle size of the flaky crushed beans is smaller than 20 meshes, the soybean fiber will enter the soy milk through the filter screen of the back-end processing equipment 25, affecting the color and taste of the final product. It can be seen from Table 1 that when the particle size of the flaky crushed beans is larger than 20 meshes and smaller than 40 meshes, the tofu prepared has moderate hardness and elasticity and the best taste.

[0063] Specifically, the outer surfaces of the two rollers 221 of the roller crusher 22 are provided with diamond patterns, and the two rollers 221 rotate relatively with each other at a speed of (1000-2900) r / min, and the distance between the two rollers 221 is (0.05-0.1) mm.

[0064] In the present invention, if the distance between the two rollers 221 exceeds 0.1 mm, the particle size after crushing will be too large, and the tofu will be too hard. Or the elasticity will be poor, affecting the taste and the final yield; if it is less than 0.05 mm, the particle size will be too fine, and the tofu will be soft. At the same time, the thin flakes of crushed beans with too small particle size will easily enter the transmission mechanism of the production equipment, reducing the equipment capacity.

[0065] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soy product pulping device, characterized in that: It includes a shelling and crushing mechanism and a crushed bean water adding mechanism; The shelling and crushing mechanism comprises a discharge mechanism (11), a first lifting conveyor (12), a primary crusher (13), a screw conveyor (14), a separation mechanism (15), a second lifting conveyor (16) and a secondary crusher (17) which are arranged in sequence from the discharge port to the feed port. The discharge port of the secondary crusher (17) is provided with a crushed bean storage trough (18), a third lifting conveyor (19) is abutted in the crushed bean storage trough (18), and the third lifting conveyor (19) is connected to the crushed bean water adding mechanism. The crushed bean water adding mechanism comprises a quantitative feeding mechanism (21) arranged at a feeding port of the third lifting conveyor (19); the feeding port of the quantitative feeding mechanism (21) is connected to a roller crusher (22); the feeding port of the roller crusher (22) is connected to a material-water mixing mechanism (23); and the material-water mixing mechanism (23) is connected to a conveying pump (24).

2. The soy product pulping device according to claim 1, characterized in that: The discharge mechanism (11) comprises a soybean storage hopper (111), a discharge valve (112) is provided at the discharge port of the soybean storage hopper (111), and the first lifting conveyor (12) is provided below the discharge valve (112).

3. The soy product pulping device according to claim 1, characterized in that: The separation mechanism (15) comprises a vibration separator (151) arranged below the discharge port of the screw conveyor (14); the vibration separator (151) is connected to the cyclone separator (152) via a fan (153); and a bean shell bucket (154) is provided below the discharge port of the cyclone separator (152).

4. The soy product pulping device according to claim 1, characterized in that: The material-water mixing mechanism (23) comprises a stirrer (231) arranged below the discharge port of the roller crusher (22); the inlet of the stirrer (231) is connected to a constant pressure water tank (232); and the discharge port of the stirrer (231) is connected to a delivery pump (24).

5. The soy product pulping device according to claim 1, characterized in that: The crushed bean storage trough (18) is provided with a slope, the lowest point of the slope abuts against one end of a third lifting conveyor (19), and the other end of the third lifting conveyor (19) is arranged above the quantitative unloading mechanism (21) of the crushed bean water adding mechanism.

6. The soy product pulping device according to claim 1, characterized in that: The roller crusher (22) comprises a machine body with an opening at the bottom, wherein two rollers (221) are arranged in the machine body at intervals, and the two rollers (221) respectively pass through the machine body and are connected to the output end of a rotating motor arranged outside the machine body; the top of the machine body is also connected to a feeding barrel.

7. A soy product pulping process, characterized in that: The pulping process uses the pulping device according to any one of claims 1 to 6, which specifically includes the following steps: 1) Bean husk separation: using a primary crusher (13) to crush soybeans into crushed beans, and using a separation mechanism (15) to separate the bean husk from the crushed beans; 2) preparing finely crushed beans: grinding the crushed beans twice using a secondary crusher (17) to prepare finely crushed beans; 3) preparing flaky crushed beans: using a roller crusher (22) to crush the fine crushed beans into flaky crushed beans; 4) Mixing material and water to make soy milk: using a quantitative feeding mechanism (21) to add thin flake crushed beans into a mixer (231), and the mixer (231) is used for stirring. At the same time, using a constant pressure water tank (232) to add water to the mixer (231), the ratio of thin flake crushed beans to water is (1:3-1:6), and soy milk is obtained.

8. The soy product pulping process according to claim 7, characterized in that: The bean husk separation in step 1 is specifically as follows: the crushed beans after the initial grinding are shelled once by using a vibration separator (151), the shelled crushed beans are sent to a secondary crusher (17) by a second lifting conveyor (16), the shelled bean husks are sent to a cyclone separator (152) by a fan (153) for shelling again, and the shelled bean husks are stored in a bean husk bucket (154).

9. The soy product pulping process according to claim 7, characterized in that: The flaky crushed beans produced by the roller crusher (22) have a particle size of (20-40) mesh.

10. The soy product pulping process according to claim 7, characterized in that: The two rollers (221) of the roller crusher (22) rotate relatively with each other at a rotation speed of (1000-2900) r / min and a spacing distance of (0.05-0.1) mm.

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