Protein water recovery device for fish meal production

Abstract

The utility model discloses a protein water recovery device for fish meal production, which comprises a vacuum pump, a support frame and an evaporation tank arranged on the support frame, a heating component is arranged below the evaporation tank, a discharge pipe and a discharge valve are arranged at the bottom of the side wall of the evaporation tank, and the vacuum pump is communicated with the evaporation tank through an exhaust pipe. A supporting rod is arranged on the top wall of the evaporation tank, a water collecting tank is arranged at the top of the supporting rod, and the bottom of the water collecting tank communicates with the top of the evaporation tank through two filtering assemblies. The filter assembly comprises a first water pipe and a first valve which are arranged at the bottom of the water collecting tank, the bottom of the first water pipe is connected with a filter pipe, a filter screen frame is detachably and fixedly installed in the filter pipe, a screen taking opening is further formed in the pipe wall of the filter pipe above the filter screen frame, a pipe cover is detachably arranged in the screen taking opening in a sealing and covering mode, and the bottom of the filter pipe is further connected with a second water pipe; and the bottom of the second water pipe is connected with the top of the evaporation tank. The device can effectively combine filtering recovery and drying concentration operation of protein water so as to improve the recovery efficiency of the protein water.

Description

Technical Field

[0001] The utility model relates to the technical field of fish meal processing, in particular to a protein water recovery device used for fish meal production. Background Art

[0002] During the production of fishmeal, protein water is produced. Protein water is a liquid by-product separated from fish raw materials during the processing of fishmeal. It is rich in protein, fat and other nutrients.

[0003] The production process of fish meal usually includes the steps of cleaning, de-heading and de-intestining, steaming, pressing, drying and crushing the raw fish. During the steaming and pressing process, the water and oil in the fish meat will be partially separated to form protein water. These liquids contain high concentrations of nutrients. If they are discharged directly without treatment, they will not only cause environmental pollution, but also waste precious resources.

[0004] The protein water recovery process requires the removal of solid impurities in the protein water, such as fish scales, fish bones, etc., and the filtered water is then dried and concentrated to reduce the water content so that it can be used in subsequent processes. Currently, the filtration recovery, drying and concentration recovery of protein water are carried out separately, which is inefficient.

[0005] Therefore, it is necessary to design a recovery device that can effectively combine the filtration recovery and drying and concentration operations of protein water to improve the recovery efficiency of protein water. Utility Model Content

[0006] The utility model aims to provide a protein water recovery device for fish meal production to solve the problems described in the background technology.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A protein water recovery device for fish meal production comprises a vacuum pump, a support frame and an evaporation tank arranged on the support frame, a heating component for heating the bottom of the evaporation tank is also arranged on the bottom of the lower part of the evaporation tank, a discharge pipe is arranged at the bottom of the side wall of the evaporation tank, a discharge valve is arranged in the discharge pipe, the vacuum pump is connected to the evaporation tank through an exhaust pipe, a support rod is also arranged on the top wall of the evaporation tank, a water collecting tank is also arranged on the top of the support rod, the bottom of the water collecting tank is also connected to the top of the evaporation tank through at least two sets of filtering components, the filtering component comprises a first water pipe connected to the bottom of the water collecting tank, a first valve is arranged in the first water pipe, a filter pipe is connected to the bottom of the first water pipe, a filter screen frame is detachably fixedly installed in the filter pipe, the filter screen frame is used to divide the internal space of the filter pipe into two upper and lower parts, a mesh taking port is also opened in the pipe wall of the filter pipe above the filter screen frame, a detachable sealing cover in the mesh taking port is provided with a pipe cover, a second water pipe is also connected to the bottom of the filter pipe, a second valve is arranged in the second water pipe, and the bottom of the second water pipe is connected to the top of the evaporation tank.

[0009] When using the above scheme, the collected protein water is poured into the water collection tank, and then the vacuum pump and the heating component are turned on, the first valve and the second valve are turned on, and the protein water containing impurities flows into the filter tube along the first water pipe, and the impurities in the protein water are intercepted by the filter frame to complete the filtering operation. Under the action of the vacuum pump, negative pressure is continuously generated in the evaporation tank, and the negative pressure acts on the bottom of the filter frame, which is conducive to the protein water to quickly penetrate downward from the filter frame, especially after the filter frame has worked for a period of time, the filtering efficiency can be effectively improved. The filtered protein water flows into the evaporation tank along the second water pipe. Under the joint action of the heating component and the negative pressure, the boiling point in the evaporation tank is reduced, and the water content in the protein water can be quickly reduced to complete the drying and concentration operation. When the water content of the remaining protein water meets the standard, the discharge pipe and the discharge valve are turned on to discharge the protein water.

[0010] By setting more than two sets of filter components, when the filter in the filter frame needs to be cleaned, the first valve and the second valve in the filter component are closed, the pipe cover is opened, and the filter frame is removed for cleaning. At the same time, other filter components continue to work to maintain the recycling operation.

[0011] The device effectively combines filtering recovery and drying concentration operations, thereby improving the recovery efficiency of protein water.

[0012] A further technical solution is that the inner side wall of the filter tube protrudes inward to form an annular convex wall, and the upper end surface of the annular convex wall is provided with an annular groove downward. The filter frame includes an annular frame and a filter arranged in the annular frame, and the lower end surface of the annular frame is also provided with an annular plug that cooperates with the annular groove. The annular frame is inserted into the annular groove through the annular plug and sealed and slidable.

[0013] When the above scheme is used, the filter frame can be quickly installed through the cooperation of the annular groove and the annular plug. At the same time, the support force of the annular groove on the annular plug is opposite to the negative pressure suction force. When the filter is blocked and a large negative pressure suction force is generated, the annular frame can be further adsorbed on the annular convex wall to prevent impurities from entering the evaporator through the gap.

[0014] A further technical solution is that the filter is in the shape of a net bag.

[0015] When the above solution is used, the net bag-shaped filter can increase the filtering area and improve the filtering efficiency.

[0016] A further technical solution is that the annular frame is also threadedly connected to the upper end surface of the annular convex wall through bolts passing through the top of the annular frame.

[0017] A further technical solution is that the evaporation tank is made of stainless steel and the heating component is an electromagnetic heating component.

[0018] When the above solution is used, the electromagnetic heating component acts on the bottom wall of the evaporation tank made of stainless steel, thereby heating the bottom wall of the evaporation tank.

[0019] A further technical solution is that the filter tube is a rectangular tube.

[0020] When the above solution is used, the rectangular filter tube is more convenient for opening the network port and removing the tube cover.

[0021] A further technical solution is that the cross section of the inner side wall of the annular convex wall is rectangular, the annular groove is a rectangular groove, and the annular frame is a rectangular frame.

[0022] When the above solution is used, the inner side wall cross section of the annular convex wall is rectangular, the annular groove is a rectangular groove, and the annular frame is a rectangular frame, which can more effectively expand the filter port and thus increase the filter area.

[0023] The beneficial effects of the utility model are:

[0024] 1. Efficient combination of filtration and drying and concentration: The solution effectively combines the two steps of filtration and drying and concentration. Impurity filtration and water removal of protein water can be completed through one set of equipment. The negative pressure function acts on filtration and evaporation at the same time, which significantly improves the recovery efficiency of protein water.

[0025] 2. Continuous and stable filtration performance: Through the negative pressure generated by the vacuum pump, the bottom of the filter frame is subjected to continuous pressure, which helps the protein water to pass through the filter quickly, especially after the filter has been used for a period of time, it can still maintain a high filtration efficiency.

[0026] 3. Flexible equipment operation and maintenance: The solution sets up multiple sets of filter components. When one set of components needs to be cleaned, the other components can continue to work, ensuring the continuity of the recycling operation. At the same time, the quick installation and disassembly design of the filter frame also greatly simplifies the maintenance process of the equipment.

[0027] 4. Reliable impurity interception mechanism: Through the cooperation of the annular groove and the annular plug, the filter frame can be tightly installed in the filter tube, effectively preventing impurities from bypassing the filter and entering the evaporation tank, ensuring the filtering effect and product quality.

[0028] 5. Optimized filter structure design: The net-shaped filter and rectangular filter tube design increase the filter area and improve the filter efficiency. At the same time, the rectangular cross-section annular convex wall and annular groove design also help to expand the filter port, further improving the filter performance.

[0029] 6. Reduce energy consumption and improve efficiency: Under the combined effect of the heating component and negative pressure, the boiling point in the evaporation tank is reduced, which can quickly reduce the moisture content in the protein water and complete the drying and concentration operation, thereby reducing energy consumption and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is the overall schematic diagram of the utility model;

[0031] Figure 2 for Figure 1 A magnified view of the structure at center;

[0032] Figure 3 for Figure 2 Sectional view along line BB.

[0033] In the figure, 1, support frame, 2, electromagnetic heating component, 3, evaporation tank, 4, vacuum pump, 5, exhaust pipe, 6, discharge pipe, 7, discharge valve, 8, support rod, 9, water collecting tank, 10, first water pipe, 11, first valve, 12, second water pipe, 13, second valve, 14, filter tube, 15, mesh port, 16, pipe cover, 17, annular convex wall, 18, annular frame, 19, filter screen, 20, annular plug, 21, annular groove. DETAILED DESCRIPTION

[0034] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0035] See also Figures 1 to 3 A protein water recovery device for fish meal production includes a vacuum pump 4, a support frame 1 and an evaporation tank 3 arranged on the support frame 1.

[0036] The evaporation tank 3 is made of stainless steel, and a heating component for heating the bottom of the evaporation tank 3 is also provided on the bottom of the evaporation tank 3. Preferably, the heating component is an electromagnetic heating component 2. The electromagnetic heating component 2 mainly includes an electromagnetic heating controller, an electromagnetic heating coil (also called an electromagnetic heating ring) and related auxiliary components. It is a commonly used technical means in the prior art and will not be described in detail here.

[0037] A discharge pipe 6 is provided at the bottom of the side wall of the evaporation tank 3 , and a discharge valve 7 is provided in the discharge pipe 6 .

[0038] The vacuum pump 4 is connected to the evaporation tank 3 through the exhaust pipe 5 .

[0039] A support rod 8 is also provided on the top wall of the evaporation tank 3 , a water collecting tank 9 is also provided on the top of the support rod 8 , and the bottom of the water collecting tank 9 is also connected to the top of the evaporation tank 3 through two sets of filter components.

[0040] Specifically, the filter assembly includes a first water pipe 10 connected to the bottom of the water collecting tank 9, and a first valve 11 is provided in the first water pipe 10. A rectangular filter tube 14 is connected to the bottom of the first water pipe 10, and a filter screen 19 frame is detachably fixedly installed in the filter tube 14, and the filter screen 19 frame is used to separate the internal space of the filter tube 14 into two upper and lower parts.

[0041] Specifically, the inner wall of the filter tube 14 protrudes inward to form an annular convex wall 17, and the inner wall cross section of the annular convex wall 17 is rectangular. A rectangular annular groove 21 is opened downward on the upper end surface of the annular convex wall 17, and a sealing rubber ring is provided at the bottom of the annular groove 21. The filter screen 19 frame includes a rectangular annular frame 18 and a net bag-shaped filter screen 19 arranged in the annular frame 18. The lower end surface of the annular frame 18 is also provided with an annular plug 20 that matches the annular groove 21. The annular frame 18 is sealed and slidably inserted in the annular groove 21 through the annular plug 20. The annular frame 18 is also screwed to the upper end surface of the annular convex wall 17 through bolts that penetrate from the top of the annular frame 18.

[0042] A rectangular net-taking opening 15 is also provided in the wall of the filter tube 14 above the filter screen 19 frame, and a detachable sealing cover is provided in the net-taking opening 15. The tube cover 16 is screwed to the side wall of the filter tube 14 by bolts, and a sealing ring is provided between the tube cover 16 and the filter tube 14.

[0043] The bottom of the filter tube 14 is also connected to a second water pipe 12 , a second valve 13 is provided in the second water pipe 12 , and the bottom of the second water pipe 12 is connected to the top of the evaporation tank 3 .

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A protein water recovery device for fish meal production, comprising a vacuum pump, a support frame and an evaporation tank arranged on the support frame, a heating assembly for heating the bottom of the evaporation tank is also arranged on the bottom of the evaporation tank, a discharge pipe is arranged at the bottom of the side wall of the evaporation tank, a discharge valve is arranged in the discharge pipe, the vacuum pump is connected to the evaporation tank through an exhaust pipe, and the characteristics are: A support rod is also provided on the top wall of the evaporation tank, and a water collecting tank is also provided on the top of the support rod. The bottom of the water collecting tank is also connected to the top of the evaporation tank through at least two sets of filtering components. The filtering component includes a first water pipe connected to the bottom of the water collecting tank, a first valve is provided in the first water pipe, a filter tube is connected to the bottom of the first water pipe, a filter screen frame is detachably fixedly installed in the filter tube, and the filter screen frame is used to divide the internal space of the filter tube into two upper and lower parts, a network access port is also provided in the tube wall of the filter tube above the filter screen frame, a detachable sealing cover in the network access port is provided with a tube cover, a second water pipe is also connected to the bottom of the filter tube, a second valve is provided in the second water pipe, and the bottom of the second water pipe is connected to the top of the evaporation tank.

2. A protein water recovery device for fish meal production according to claim 1, characterized in that: The inner side wall of the filter tube protrudes inward to form an annular convex wall, and an annular groove is downwardly provided on the upper end surface of the annular convex wall. The filter screen frame includes an annular frame and a filter screen arranged in the annular frame. The lower end surface of the annular frame is also provided with an annular plug that matches the annular groove. The annular frame is sealed and slidably inserted in the annular groove through the annular plug.

3. A protein water recovery device for fish meal production according to claim 2, characterized in that: The filter screen is in the shape of a net bag.

4. A protein water recovery device for fish meal production according to claim 3, characterized in that: The annular frame is also threadedly connected to the upper end surface of the annular convex wall through bolts passing through the top of the annular frame.

5. The protein water recovery device for fish meal production according to claim 1, characterized in that: The evaporation tank is made of stainless steel, and the heating component is an electromagnetic heating component.

6. A protein water recovery device for fish meal production according to claim 4, characterized in that: The filter tube is a rectangular tube.

7. A protein water recovery device for fish meal production according to claim 6, characterized in that: The inner side wall cross section of the annular convex wall is rectangular, the annular groove is a rectangular groove, and the annular frame is a rectangular frame.

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