Treatment device for reducing soluble protein content in corn starch slurry

Abstract

The utility model discloses a treatment device for reducing the content of soluble protein in corn starch slurry, and belongs to the field of corn starch processing equipment. The device mainly comprises a device body, one end of the device body is communicated with a feeding pipe, the lower portion of the other end of the device body is communicated with a discharging pipe, a control valve is arranged on the discharging pipe, a breather pipe is arranged at the bottom in the device body, a plurality of air outlet holes are formed in the breather pipe, the breather pipe is communicated with an air inlet pipeline, and the air inlet pipeline penetrates through the device body in a sealed mode. An overflow pipe is arranged at the upper part of one end, close to the discharge pipe, of the device body; an adjusting mechanism for controlling the overflow height is arranged in the overflow pipe. After the cyclone washing device is used for a cyclone washing process, air is fed into powder slurry materials to generate small bubbles, soluble protein in the powder slurry forms large bubbles under the action of the small bubbles, the large bubbles float above the materials, and the large bubbles flow out of the overflow port and return to the previous process, so that the soluble protein is separated; the protein content of the powder slurry is effectively reduced.

Description

Technical Field

[0001] The utility model belongs to the field of corn starch processing equipment, and in particular relates to a processing device for reducing the soluble protein content in corn starch slurry. Background Art

[0002] In corn wet starch production, the separation of starch and protein is primarily accomplished through separators and hydrocyclones. To reduce process water discharge and save on wastewater treatment costs, in actual production, only clean water is used in the final hydrocyclone stage, with process water used for the remainder. This results in a high protein content in the slurry. Most of this protein is soluble, small molecules that are difficult to remove. This directly impacts the Maillard reaction during the sugar liquefaction process, generating pigments that are susceptible to bacterial contamination during saccharification, thus impacting the refining of the sugar solution and the quality of the finished syrup.

[0003] Patent publication number CN219722595U discloses a slurry mixing tank for reducing starch protein content. The tank comprises a slurry mixing tank, a feed pipe, and a water inlet pipe. An overflow pipe valve is connected to one side of the upper end of the slurry mixing tank. A first air blow pipe is provided on the opposite side of the overflow pipe valve. A second air blow pipe is provided at the bottom of the slurry mixing tank. Both the first and second air blow pipes are connected to an air compressor. By providing the first and second air blow pipes and the overflow pipe valve, generated bubbles can be quickly blown out and discharged, achieving good defoaming effect and high defoaming efficiency.

[0004] However, there are still the following defects during use: 1. The slurry mixing tank is a vertical structure, which consumes a large amount of water and has insufficient slurry processing capacity; 2. The overflow height cannot be adjusted, and cannot be adaptively adjusted according to the protein content in the slurry, and has poor flexibility; 3. The situation in the slurry mixing tank cannot be observed in real time, which is inconvenient to use. Utility Model Content

[0005] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art and provide a processing device for reducing the soluble protein content in corn starch slurry, which is used after the cyclone washing process to generate small bubbles by introducing air into the slurry material, so that the soluble protein in the slurry forms large foam under the action of the small bubbles and floats above the material, and flows out through the overflow port and returns to the previous process, thereby separating the soluble protein, effectively reducing the protein content of the slurry and improving the quality of the slurry.

[0006] The processing device for reducing the soluble protein content in corn starch slurry includes a device body, one end of the device body is connected to a feed pipe, the lower part of the other end of the device body is connected to a discharge pipe, a control valve is provided on the discharge pipe, and a vent pipe is provided at the bottom of the device body. The vent pipe is provided with multiple air outlet holes, the vent pipe is connected to the air inlet pipe, and the air inlet pipe is sealed and passes through the device body. An overflow pipe is provided at the upper part of the device body near one end of the discharge pipe, and an adjustment mechanism for controlling the overflow height is provided in the overflow pipe.

[0007] Preferably, a check valve is provided on the air intake pipe, and a regulating valve for adjusting the air supply size is provided at the front end of the check valve, and the regulating valve is connected to the air intake pipe.

[0008] Preferably, a feed bell mouth is provided at the connection between the device body and the feed pipe, and a discharge bell mouth is provided at the connection between the device body and the discharge pipe, and the large-diameter ends of the feed bell mouth and the discharge bell mouth are both connected to the device body.

[0009] Preferably, the bottom of the discharge bell mouth and the discharge pipe are arranged flush with the bottom of the device body.

[0010] Preferably, an upper opening for installing a sliding window is opened at the upper end of the device body, baffles are fixed on both sides of the device body, the sliding window is slidably connected to the two baffles, and a handle is fixedly connected to the sliding window.

[0011] Preferably, the adjustment mechanism includes a rotating shaft sealed and rotatably connected to the overflow pipe, an adjustment plate is fixedly connected to the rotating shaft, both ends of the adjustment plate cooperate with the inner wall of the overflow pipe, one end of the rotating shaft extending out of the overflow pipe is fixedly connected to an adjustment rod, a detachable pin is inserted on the adjustment rod, an arc-shaped limit seat is fixedly connected to the outer wall of the overflow pipe, and a plurality of limit holes cooperating with the pin are opened on the arc-shaped limit seat.

[0012] Preferably, the height direction of the adjustment plate is consistent with the length direction of the adjustment rod.

[0013] Preferably, the vent pipe is a U-shaped structure, and the bottom of the overflow pipe is tilted downward.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model is used after the cyclone washing process. By arranging a vent pipe and an overflow pipe with an adjustment mechanism, air is introduced into the slurry material to generate small bubbles. The soluble protein in the slurry forms large foam under the action of the small bubbles and floats above the material, and flows out through the overflow port and returns to the previous process, thereby separating the soluble protein, effectively reducing the protein content of the slurry, improving the quality of the slurry, reducing the amount of by-products of liquefaction and saccharification in the subsequent sugar-making process, reducing the ion exchange load, and improving product quality.

[0016] 2. The regulating mechanism can adjust the size of the material overflow according to the actual operating conditions of the device body, which is easy to use. At the same time, the discharge port discharges the material by gravity, which improves the separation effect of soluble protein.

[0017] 3. Adding a check valve to the air inlet pipe can prevent the material from entering the vent pipe when the air supply is suddenly stopped, which may cause the vent pipe to be blocked, and it is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 for Figure 1 A partial enlarged view of part A;

[0020] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the side structure of the device body;

[0022] Figure 5 Schematic diagram of the structure of the adjustment mechanism.

[0023] In the figure, 1. device body; 101. feed pipe; 102. feed bell mouth; 103. discharge bell mouth; 104. discharge pipe; 105. upper opening; 106. baffle; 107. overflow port; 2. sliding window; 201. handle; 3. overflow pipe; 4. control valve; 5. air inlet pipe; 6. regulating valve; 7. check valve; 8. vent pipe; 801. air outlet; 9. regulating mechanism; 901. regulating rod; 902. pin shaft; 903. arc limit seat; 904. limit hole; 905. adjusting plate; 906. rotating shaft. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] The directional terms used in the detailed description are intended solely to facilitate understanding of the technical solutions described herein by those skilled in the art based on the visual orientation shown in the accompanying drawings. Unless otherwise specified or limited, the terms "dispose," "install," and "connect" are to be interpreted broadly, and those skilled in the art will understand their specific meanings in this utility model based on the specific circumstances.

[0026] like Figures 1 to 5As shown, the processing device for reducing the soluble protein content in corn starch slurry includes a device body 1, which is used to hold the slurry material from the cyclone. One end of the device body 1 is connected to a feed pipe 101, and a feed bell mouth 102 is provided at the connection between the device body 1 and the feed pipe 101. The lower part of the other end of the device body 1 is connected to a discharge pipe 104, and a discharge bell mouth 103 is provided at the connection between the device body 1 and the discharge pipe 104. The large-diameter ends of the feed bell mouth 102 and the discharge bell mouth 103 are both connected to the device body 1, and the bottoms of the discharge bell mouth 103 and the discharge pipe 104 are flush with the bottom of the device body 1. The function of the feed bell mouth 102 is to ensure the first-in-first-out of the material, and the discharge bell mouth 103 can ensure the first-in-first-out of the material and prevent the material from settling. The discharge pipe 104 is arranged at the bottom to realize natural gravity discharge, so that the material can automatically enter the storage tank.

[0027] The discharge pipe 104 is provided with a control valve 4, which is a prior art. The control valve 4 can effectively prevent the liquid level in the device body 1 from changing due to the different pressures of the inlet and outlet materials, thereby affecting the separation effect of the soluble protein. A vent pipe 8 is provided at the bottom of the device body 1. The vent pipe 8 can be two, respectively arranged on both sides of the device body 1, and the two vent pipes 8 are connected; the vent pipe 8 can also be a U-shaped structure, the end of the vent pipe 8 is sealed, and a plurality of air outlet holes 801 are opened on the vent pipe 8. The vent pipe 8 is connected to the air inlet pipe 5, which is sealed and passes through the device body 1. The air inlet pipe 5 is connected to the air supply device, which is used to let air into the vent pipe 8, thereby supplying air to the material, so that the soluble protein in the slurry material forms a large foam under the action of small bubbles, floating above the material, and flows out through the overflow port 107, thereby effectively removing the soluble protein in the slurry.

[0028] The air intake pipe 5 is provided with a check valve 7. This check valve 7 prevents material from entering the vent pipe 8 when the air supply is suddenly stopped, which could cause clogging of the vent pipe 8. This provides a safety feature. A regulating valve 6 for adjusting the air supply is located at the front end of the check valve 7, i.e., the end away from the device body 1. This regulating valve 6 is connected to the air intake pipe 5. By rotating the regulating valve 6, the air intake pipe 5 can be opened and closed, and the air supply in the air intake pipe 5 can be adjusted.

[0029] like Figure 4 As shown, an overflow port 107 is provided at the upper portion of the device body 1 near one end of the discharge pipe 104. Overflow port 107 communicates with overflow pipe 3. Overflow port 107 is a sloped structure, and the bottom of overflow pipe 3 is tilted downward. During use, a material receiving funnel is provided at the bottom of overflow pipe 3, which is connected to a material recovery pipeline, which is connected to the previous process to achieve the recovery and reuse of soluble protein materials.

[0030] like Figure 1 and Figure 2 As shown, an adjustment mechanism 9 for controlling the overflow height is provided in the overflow pipe 3. Figure 5 As shown, the adjustment mechanism 9 includes a rotating shaft 906 that is sealed and rotatably connected to the overflow pipe 3. An adjustment plate 905 is fixedly connected to the rotating shaft 906. During manufacturing, the rotating shaft 906 and the adjustment plate 905 are both wrapped with a rubber layer to provide a sealing effect. The outer wall of the rotating shaft 906 is sealed with the bottom of the overflow pipe 3, and the ends of the adjustment plate 905 are sealed with the inner wall of the overflow pipe 3. The end of the rotating shaft 906 extending from the overflow pipe 3 is fixedly connected to the adjustment rod 901, and the adjustment rod 901 is plugged with a detachable pin 902. The outer wall of the overflow pipe 3 is fixedly connected to an arc-shaped limit seat 903, and the arc-shaped limit seat 903 is provided with a plurality of limit holes 904 that cooperate with the pins 902. By rotating the adjustment rod 901, the adjustment plate 905 rotates accordingly, and the height of the overflow liquid level can be controlled. The position of the adjustment rod 901 can be fixed by plugging and fixing the pins 902 into the corresponding limit holes 904. The size of the material overflow can be adjusted according to the actual operating conditions through the regulating mechanism 9.

[0031] To facilitate understanding of the rotation angle of the adjustment plate 905, the height direction of the adjustment plate 905 is consistent with the length direction of the adjustment rod 901. At the same time, during manufacturing, it is preferred that the height of the adjustment plate 905 is equal to the length of the adjustment rod 901, so that the overflow height of the overflow pipe 3 can be intuitively understood through the position of the adjustment rod 901.

[0032] like Figure 1 and Figure 4 As shown, the upper end of the device body 1 is provided with an upper opening 105 for installing the sliding window 2. Baffles 106 are fixed on both sides of the device body 1. The sliding window 2 is slidably connected to the two baffles 106. The sliding window 2 is fixedly connected to the sliding window 2. A handle 201 is fixedly connected to the sliding window 2. When it is necessary to observe the internal conditions of the device body 1, the sliding window 2 can be slid away from the upper opening 105 using the handle 201, so that the sliding window 2 slides into the bottom of the upper end cover of the device body 1, thereby making it easier for personnel to check the material handling status.

[0033] When in use, the present invention cooperates with a cyclone and a storage tank. The feed pipe 101 is connected to the discharge pipe of the cyclone via a pump, and the discharge pipe 104 is connected to the feed pipe of the storage tank. The storage tank is arranged below the present invention, so that the material discharged by gravity can naturally enter the storage tank; the air intake pipe is connected to the air supply device.

[0034] During operation, the control valve 4 is closed and the pump is started. The slurry material after cyclone washing enters the device body 1 through the feed pipe 101, the regulating valve 6 is opened, and the air supply device supplies air to the ventilation pipe 8 through the air inlet pipe 5. The air enters the slurry material through the air outlet 801 to form small bubbles. Under the action of the small bubbles, the soluble protein in the slurry material forms large foam floating above the material, and flows out through the overflow port 107, and returns to the previous process through the material recovery pipeline to continue washing, thereby separating the soluble protein, effectively reducing the protein content of the slurry, and improving the quality of the slurry. The material with the protein separated enters the storage tank through the discharge pipe 104 for storage.

[0035] During this process, the processing situation inside the device body 1 can be observed by opening the sliding window 2. According to the processing situation, the adjustment rod 901 is rotated to adjust the angle of the adjustment plate 905 to control the amount of material overflow. Even if the seal is not tight and a small amount of material overflows, it will not cause waste or affect the protein separation effect.

[0036] Finally, although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A treatment device for reducing the soluble protein content in corn starch slurry, comprising a device body (1), characterized in that: One end of the device body (1) is connected to a feed pipe (101), and the lower part of the other end of the device body (1) is connected to a discharge pipe (104), and a control valve (4) is provided on the discharge pipe (104). A vent pipe (8) is provided at the bottom of the device body (1), and a plurality of air outlet holes (801) are opened on the vent pipe (8). The vent pipe (8) is connected to an air inlet pipe (5), and the air inlet pipe (5) passes through the device body (1) in a sealed manner. An overflow pipe (3) is provided at the upper part of the device body (1) near one end of the discharge pipe (104), and an adjustment mechanism (9) for controlling the overflow height is provided in the overflow pipe (3).

2. The device for reducing the soluble protein content in corn starch slurry according to claim 1, characterized in that: The air intake pipe (5) is provided with a check valve (7), and a regulating valve (6) for regulating the air supply size is provided at the front end of the check valve (7), and the regulating valve (6) is connected to the air intake pipe (5).

3. The device for reducing the soluble protein content in corn starch slurry according to claim 1, characterized in that: A feed bell mouth (102) is provided at the connection between the device body (1) and the feed pipe (101), and a discharge bell mouth (103) is provided at the connection between the device body (1) and the discharge pipe (104). The large-diameter ends of the feed bell mouth (102) and the discharge bell mouth (103) are both connected to the device body (1).

4. The device for reducing the soluble protein content in corn starch slurry according to claim 3, characterized in that: The bottoms of the discharge bell mouth (103) and the discharge pipe (104) are arranged flush with the bottom of the device body (1).

5. The device for reducing the soluble protein content in corn starch slurry according to claim 1, characterized in that: An upper opening (105) for installing a sliding window (2) is provided at the upper end of the device body (1), baffles (106) are fixed on both sides of the device body (1), the two baffles (106) are slidably connected to the sliding window (2), and a handle (201) is fixedly connected to the sliding window (2).

6. The device for reducing the soluble protein content in corn starch slurry according to claim 1, characterized in that: The regulating mechanism (9) comprises a rotating shaft (906) which is sealingly rotatably connected to the overflow pipe (3); an regulating plate (905) is fixedly connected to the rotating shaft (906); both ends of the regulating plate (905) cooperate with the inner side wall of the overflow pipe (3); one end of the rotating shaft (906) extending out of the overflow pipe (3) is fixedly connected to an regulating rod (901); a detachable pin (902) is plugged into the regulating rod (901); an arc-shaped limiting seat (903) is fixedly connected to the outer side wall of the overflow pipe (3); and a plurality of limiting holes (904) are provided on the arc-shaped limiting seat (903) which cooperate with the pin (902).

7. The device for reducing the soluble protein content in corn starch slurry according to claim 6, characterized in that: The height direction of the adjustment plate (905) is consistent with the length direction of the adjustment rod (901).

8. The device for reducing the soluble protein content in corn starch slurry according to claim 1, characterized in that: The vent pipe (8) is a U-shaped structure, and the bottom of the overflow pipe (3) is arranged to be tilted downward.

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