Process and equipment for recycling protein in bean product wastewater

Abstract

The invention relates to the technical field of wastewater treatment, and particularly discloses a bean product wastewater protein recovery treatment process and equipment, the equipment comprises a recovery bin, a mesh cage, a servo motor, a mounting column, a stirring assembly and a mounting flange, and the mounting flange is fixedly connected with the recovery bin and sleeves the outer surface wall of the recovery bin; the two ends of the installation column are fixedly connected with the recycling bin and located in the recycling bin, the servo motor is fixedly connected with the installation column and located at the lower end of the installation column, the net cage is fixedly connected with the output end of the servo motor and located at the upper end of the servo motor, and the stirring assembly is fixedly connected with the recycling bin and located at the upper end of the recycling bin. And the output end of the stirring assembly is arranged in the mesh cage. The filtering effect and the filtering rate can be effectively improved, meanwhile, the situation that the filtering effect is affected by blockage of bean dregs, bean hulls and gravel impurities is avoided, and bean product wastewater is filtered with high efficiency and high quality.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, and in particular to a process and equipment for recovering protein from bean product wastewater. Background Art

[0002] At present, in the process of processing soy products, polluting high-protein wastewater is easily generated. Biochemical treatment is usually used. After a series of biochemical treatments, the protein is degraded to effectively reduce the pollution. Biochemical treatment is easy to introduce new pollution sources, and the treatment cycle is long. It is easily affected by external factors. The protein recovery rate is only about 60%, and the purity of the recovered protein is not high, so secondary treatment is required.

[0003] The prior art CN112456713A provides a process and equipment for recovering protein from bean product wastewater, wherein the bean product wastewater is subjected to ion exchange treatment, and the ion exchange column is eluted to obtain a first protein solution; the wastewater after ion exchange treatment enters an MVR forced circulation system, the first protein solution is ultrafiltered through an ultrafiltration membrane to intercept proteins of a target molecular weight, the intercepted liquid is collected to obtain a second protein solution, the second protein solution is vacuum evaporated and dried at a pressure of 7.5 kPa to 12 kPa and a temperature of 40° C. to 50° C. to obtain a first protein solid and a distillate, the distillate enters the MVR forced circulation system, and heat is exchanged with the wastewater after ion exchange treatment in a) to obtain preheated wastewater, the preheated wastewater is heated and flash evaporated to obtain water vapor and a third protein solution, the third protein solution is repeatedly treated according to the heating and flash evaporation conditions in step e) until the protein mass percentage in the solution is 85% to 95%, to obtain a fourth protein solution, the fourth protein solution is vacuum dried and evaporated under the pressure and temperature conditions in step c) to obtain a second protein solid.

[0004] However, in the prior art, when filtering soy products, the bean skin will clog the filter holes and affect the filtering efficiency of the wastewater. Summary of the invention

[0005] The purpose of the present invention is to provide a process and equipment for recovering protein from bean product wastewater, aiming to solve the technical problem in the prior art that when filtering bean products, bean skins will clog the filter holes and affect the filtration efficiency of the wastewater.

[0006] To achieve the above-mentioned purpose, the present invention adopts a kind of soy product wastewater protein recovery and treatment equipment, including a recovery bin, a mesh cage, a servo motor, a mounting column, a stirring assembly and a mounting flange, wherein the mounting flange is fixedly connected to the recovery bin and is sleeved on the outer wall of the recovery bin, the two ends of the mounting column are respectively fixedly connected to the recovery bin and are located inside the recovery bin, the servo motor is fixedly connected to the mounting column and is located at the lower end of the mounting column, and the output end of the servo motor passes through the mounting column, the mesh cage is fixedly connected to the output end of the servo motor and is located at the upper end of the servo motor, the stirring assembly is fixedly connected to the recovery bin and is located at the upper end of the recovery bin, and the output end of the stirring assembly is placed inside the mesh cage.

[0007] Among them, the soy product wastewater protein recovery and processing equipment also includes a lubrication component, which is fixedly connected to the recovery bin and embedded between the recovery bin and the mesh cage.

[0008] Among them, the lubrication assembly includes an outer ring, an inner ring and rollers, the outer ring is fixedly connected to the recovery bin and embedded in the interior of the recovery bin, the inner ring is arranged inside the outer ring, the number of rollers is multiple groups, each group of rollers is respectively embedded between the outer ring and the inner ring, and each group of rollers is respectively rotatably connected to the outer ring and the inner ring.

[0009] Among them, the stirring assembly includes a stirring frame, a stirring shaft, a stirring blade and a stirring motor. The stirring frame is fixedly connected to the recovery bin and is located at the upper end of the recovery bin. The stirring motor is fixedly connected to the stirring frame and is located at the upper end of the stirring frame, and the output end of the stirring motor passes through the stirring frame. The stirring shaft is fixedly connected to the output end of the stirring motor and is located at the lower end of the stirring motor. The stirring blade is fixedly connected to the stirring shaft and is located at one end of the stirring shaft.

[0010] Wherein, the recovery bin includes a bin body and a collection bucket, and the collection bucket is fixedly connected to the bin body and is located inside the bin body.

[0011] Wherein, the soy product wastewater protein recovery and treatment equipment also includes a drainage pipe group, which is connected to the hopper and is located at the lower end of the hopper.

[0012] Among them, the drainage pipe group includes a drainage pipe body, a drainage flange and a reinforcing rib plate. The drainage flange is fixedly connected to the drainage pipe and is sleeved on the outer wall of the drainage pipe. The drainage flange is detachably connected to the funnel by bolts. The number of the reinforcing rib plates is multiple groups, and each group of the reinforcing rib plates is fixedly connected to the drainage pipe body and is respectively located on the outer wall of the drainage pipe body.

[0013] The present invention also provides a process for recovering protein from bean product wastewater, which is applied to the above-mentioned device for recovering protein from bean product wastewater, and comprises the following steps:

[0014] Starting the servo motor and the stirring motor to rotate;

[0015] Pour the bean product wastewater to be filtered into the mesh cage, and filter the bean product wastewater by rotating the mesh cage;

[0016] The filtered wastewater is discharged through the sink, and impurities in the wastewater are filtered and intercepted by the mesh cage;

[0017] The bean product wastewater after impurities are filtered out is then filtered through medical stone;

[0018] The wastewater after medical stone filtration is then filtered through an activated carbon filter layer;

[0019] The wastewater after activated carbon filtration is then filtered through a mixture of volcanic ash and quartz sand;

[0020] Adsorb trace elements in soy product wastewater;

[0021] The protein is then retained by an ultrafiltration membrane, and the retained protein is repeatedly heated and flash evaporated to make the protein percentage in the solution 80-90%;

[0022] The protein solution was dried and evaporated in vacuum to obtain a protein solid.

[0023] The present invention discloses a process and equipment for recovering and treating protein in bean product wastewater. The mounting column and the stirring component are supported and fixed by the recovery bin, the servo motor is energized, the servo motor is started to rotate, and then the mesh cage is driven to rotate. At the same time, the stirring component is energized so that the output end of the stirring component rotates and stirs in the mesh cage, and the bean product wastewater to be filtered is poured into the mesh cage. Under the action of the continuous rotation of the mesh cage and the continuous stirring of the stirring component, the poured bean product wastewater is filtered. The above structure can effectively improve the filtering effect and filtering rate, and at the same time avoid clogging of bean dregs, bean skins and sand and stone impurities that affect the filtering effect, thereby achieving high-efficiency and high-quality filtering of bean product wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a structural schematic diagram of a soybean product wastewater protein recovery and treatment device of the present invention.

[0026] Figure 2 It is a top view of a device for recovering and treating protein from bean product wastewater according to the present invention.

[0027] Figure 3 The present invention is a cross-sectional view of the internal structure of a device for recovering and treating protein in bean product wastewater.

[0028] Figure 4 The present invention is a flowchart of the steps of a process for recovering and treating protein from bean product wastewater.

[0029] 101-bin body, 102-bucket, 103-cage, 104-servo motor, 105-mounting column, 106-stirring frame, 107-stirring shaft, 108-stirring blade, 109-stirring motor, 110-mounting flange, 111-outer ring, 112-inner ring, 113-roller, 114-drainage pipe body, 115-drainage flange, 116-reinforcement ribs, 117-filter bin body, 118-filter screen, 119-filter flange ring, 120-loading pipe, 121-loading flange, 122-sealing plate. DETAILED DESCRIPTION

[0030] See also Figures 1 to 3 ,in Figure 1 This is a schematic diagram of the structure of a soybean product wastewater protein recovery and treatment device of the present invention. Figure 2 This is a top view of a bean product wastewater protein recovery and treatment device of the present invention. Figure 3 The present invention is a cross-sectional view of the internal structure of a device for recovering and treating protein in bean product wastewater.

[0031] The present invention provides a device for recycling protein in bean product wastewater, comprising a recycling bin, a mesh cage 103, a servo motor 104, a mounting column 105, a stirring assembly and a mounting flange 110, wherein the mounting flange 110 is fixedly connected to the recycling bin and sleeved on the outer wall of the recycling bin, the two ends of the mounting column 105 are respectively fixedly connected to the recycling bin and are located inside the recycling bin, the servo motor 104 is fixedly connected to the mounting column 105 and is located at the lower end of the mounting column 105, and the output end of the servo motor 104 passes through the mounting column 105, the mesh cage 103 is fixedly connected to the output end of the servo motor 104 and is located at the upper end of the servo motor 104, and the The stirring component is fixedly connected to the recycling bin and is located at the upper end of the recycling bin, and the output end of the stirring component is placed inside the mesh cage 103. The recycling bin supports and fixes the mounting column 105 and the stirring component. The servo motor 104 is energized, and the servo motor 104 is started to rotate, thereby driving the mesh cage 103 to rotate. At the same time, the stirring component is energized so that the output end of the stirring component rotates and stirs in the mesh cage 103, and the soy product wastewater to be filtered is poured into the mesh cage 103. Under the continuous rotation of the mesh cage 103 and the continuous stirring of the stirring component, the poured soy product wastewater is filtered.

[0032] Furthermore, the soy product wastewater protein recovery and processing equipment also includes a lubrication component, which is fixedly connected to the recovery bin and embedded between the recovery bin and the mesh cage 103. The lubrication component can effectively reduce the friction between the recovery bin and the mesh cage 103, improve the smoothness of the mesh cage 103 during rotation, and improve the service life of the device.

[0033] Furthermore, the lubrication assembly includes an outer ring 111, an inner ring 112 and rollers 113. The outer ring 111 is fixedly connected to the recovery bin and embedded in the interior of the recovery bin. The inner ring 112 is arranged in the interior of the outer ring 111. The number of rollers 113 is multiple groups. Each group of rollers 113 is respectively embedded between the outer ring 111 and the inner ring 112, and each group of rollers 113 is respectively rotatably connected to the outer ring 111 and the inner ring 112. The outer ring 111 is fixedly connected to the recovery bin, and the inner ring 112 is placed in the interior of the outer ring 111. Multiple rollers 113 are placed between the outer ring 111 and the inner ring 112 to reduce the friction between the outer ring 111 and the inner ring 112 and improve the rotational lubrication.

[0034] Furthermore, the stirring assembly includes a stirring frame 106, a stirring shaft 107, a stirring blade 108 and a stirring motor 109, wherein the stirring frame 106 is fixedly connected to the recycling bin and is located at the upper end of the recycling bin, the stirring motor 109 is fixedly connected to the stirring frame 106 and is located at the upper end of the stirring frame 106, and the output end of the stirring motor 109 passes through the stirring frame 106, the stirring shaft 107 is fixedly connected to the output end of the stirring motor 109 and is located at the stirring motor 10 9, the stirring blade 108 is fixedly connected to the stirring shaft 107 and is located at one end of the stirring shaft 107, the stirring frame 106 supports and fixes the motor, energizes the stirring motor 109, drives the stirring motor 109 to rotate, and drives the stirring shaft 107 to rotate, and finally the stirring shaft 107 drives the stirring blade 108 to rotate inside the mesh cage 103, stirs the inside of the mesh cage 103, and prevents impurities from clogging the mesh cage 103.

[0035] Furthermore, the recovery bin includes a bin body 101 and a hopper 102, the hopper 102 is fixedly connected to the bin body 101 and is located inside the bin body 101, the bin body 101 is used to install and fix the stirring frame 106, the mounting column 105 and the lubrication assembly, and the hopper 102 is used to divert the wastewater to the next process.

[0036] Furthermore, the soy product wastewater protein recovery and treatment equipment also includes a drainage pipe group, which is connected to the hopper 102 and is located at the lower end of the hopper 102. The filtered wastewater is discharged through the drainage pipe group, and the length can be adjusted and replaced according to usage requirements.

[0037] Furthermore, the drainage pipe group includes a drainage pipe body 114, a drainage flange 115 and a reinforcing rib 116. The drainage flange 115 is fixedly connected to the drainage pipe and sleeved on the outer wall of the drainage pipe. The drainage flange 115 is detachably connected to the funnel 102 by bolts. There are multiple groups of reinforcing ribs 116. Each group of reinforcing ribs 116 is respectively fixedly connected to the drainage pipe body 114 and located on the outer wall of the drainage pipe body 114. The drainage pipe body 114 is installed and fixed by the drainage flange 115. The flange connection facilitates quick disassembly and installation, and can be adjusted accordingly according to the required length in real time. The reinforcing ribs 116 can improve the use strength and prevent the drainage pipe body 114 from being deformed and damaged by the impact of wastewater.

[0038] Furthermore, the soy product wastewater protein recovery and processing equipment also includes a filtering mechanism, which is fixedly connected to the drainage pipe body 114 and is located at one end of the drainage pipe body 114. The soy product wastewater can be filtered through the filtering mechanism, and the trace elements in the soy product wastewater can be filtered and adsorbed, and the trace elements inside the soy products can be adsorbed and collected.

[0039] Furthermore, the filtering mechanism is composed of a plurality of filter bins, each of which includes a filter bin body 117, a filter screen 118 and a filter flange ring 119. The number of the filter screens 118 is two groups, and the two groups of filter screens 118 are respectively fixedly connected to the filter bin body 117 and are respectively embedded in the interior of the filter bin body 117. The number of the filter flange rings 119 is two groups, and the two groups of filter flange rings 119 are respectively fixedly connected to the filter bin body 117 and are respectively sleeved on the outer wall of the filter bin body 117. The plurality of filter bins are used to load different filter materials, and different trace elements are adsorbed and collected by different materials. The filter materials are placed and limited by the two groups of filter screens 118, and the adjacent filter bins are connected by the filter flange rings 119, and the drainage pipe body 114 can be connected at the same time.

[0040] Furthermore, each of the filter bins also includes a loading pipe 120, a loading flange 121 and a sealing plate 122. The loading pipe 120 is communicated with the filter bin body 117 and is located on the outer wall of the filter bin body 117. The loading flange 121 is fixedly connected to the loading pipe 120 and sleeved on the outer wall of the loading pipe 120. The sealing plate 122 is arranged on one side of the loading flange 121, and the sealing plate 122 is detachably connected to the loading flange 121 by bolts. The filter material is loaded through the loading pipe 120, and the filter material is filled and discharged, which is convenient for cleaning the filter material and washing the adsorbed trace elements into water. The adsorption material can be recycled to reduce the use cost.

[0041] When using a bean product wastewater protein recovery and treatment device of the present embodiment, the recovery bin supports and fixes the mounting column 105 and the stirring component, energizes the servo motor 104, starts the servo motor 104 to rotate, and then drives the mesh cage 103 to rotate, and energizes the stirring component at the same time, so that the output end of the stirring component rotates and stirs in the mesh cage 103, and the bean product wastewater to be filtered is poured into the mesh cage 103. Under the action of the continuous rotation of the mesh cage 103 and the continuous stirring of the stirring component, the poured bean product wastewater is filtered. The lubrication component can effectively reduce the friction between the recovery bin and the mesh cage 103, improve the smoothness of the mesh cage 103 during the rotation operation, and improve the service life of the device. The outer ring 111 is fixedly connected to the recovery bin, and the inner ring 112 is placed inside the outer ring 111. A plurality of rollers 113 are placed between the outer ring 111 and the inner ring 112 to reduce the friction between the outer ring 111 and the inner ring The friction between the rotating parts 112 is used to improve the rotational lubricity. The stirring frame 106 supports and fixes the motor, and the stirring motor 109 is energized to drive the stirring motor 109 to rotate, and the stirring shaft 107 is driven to rotate. Finally, the stirring shaft 107 drives the stirring blade 108 to rotate inside the mesh cage 103, and stirs the inside of the mesh cage 103 to prevent impurities from clogging the mesh cage 103. The warehouse body 101 is used to support the stirring frame 106, the mounting column 105 and The lubrication assembly is installed and fixed, the sink 102 is used to divert the wastewater to the next process, and the filtered wastewater is discharged through the drainage pipe group. The length can be adjusted and replaced according to the use requirements. The drainage pipe body 114 is installed and fixed through the drainage flange 115. The flange connection is convenient for rapid disassembly and installation, and can be adjusted accordingly according to the required length in real time. The reinforcing ribs 116 can improve the use strength to prevent the drainage pipe body 114 from being deformed and damaged by the impact of wastewater;

[0042] The filtering mechanism can be used to filter bean product wastewater, filter and adsorb trace elements in bean product wastewater, and adsorb and collect trace elements inside bean products. The multiple filter bins are used to load different filter materials, and different trace elements are adsorbed and collected by different materials. The filter materials are placed and limited by two groups of filter screens 118, and the adjacent filter bins are connected by the filter flange ring 119. At the same time, the drainage pipe body 114 can be connected, and the filter material is loaded through the loading pipe 120. The filter material is loaded and discharged, which is convenient for cleaning the filter material and washing the adsorbed trace elements into water. The adsorption material can be recycled to reduce the use cost.

[0043] See also Figure 4 , Figure 4 The present invention is a flowchart of the steps of a process for recovering and treating protein from bean product wastewater.

[0044] The present invention also provides a process for recovering protein from bean product wastewater, which is applied to the above-mentioned device for recovering protein from bean product wastewater, and comprises the following steps:

[0045] S1: Start the servo motor 104 and the stirring motor 109 to rotate;

[0046] S2: pouring the bean product wastewater to be filtered into the mesh cage 103, and filtering the bean product wastewater by rotating the mesh cage 103;

[0047] S3: The filtered wastewater is discharged through the hopper 102, and impurities in the wastewater are filtered and intercepted by the mesh cage 103;

[0048] S4: filtering the soy product wastewater after filtering out impurities through medical stone;

[0049] S5: The wastewater after medical stone filtration is then filtered through an activated carbon filter layer;

[0050] S6: The wastewater after activated carbon filtration is then filtered through a mixture of volcanic ash and quartz sand;

[0051] S7: Adsorption of trace elements in soy product wastewater;

[0052] S8: The protein is retained by an ultrafiltration membrane, and the retained protein is repeatedly heated and flash evaporated to make the protein percentage in the solution 80-90%;

[0053] S9: The protein solution is vacuum dried and evaporated to obtain a protein solid.

[0054] When using a soy product wastewater protein recovery and treatment process of the present embodiment, the trace elements in the soy product wastewater can be filtered and collected, and then the trace elements on the adsorption material can be washed into water by physical washing for subsequent trace element treatment. After the trace elements in the soy product wastewater are collected, the protein in the soy product wastewater is intercepted and treated, and the protein therein is recovered and treated into protein solids.

[0055] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A protein recovery and treatment device for bean product wastewater, characterized in that: It includes a recovery bin, a mesh cage, a servo motor, a mounting column, a stirring assembly and a mounting flange, wherein the mounting flange is fixedly connected to the recovery bin and sleeved on the outer wall of the recovery bin, the two ends of the mounting column are respectively fixedly connected to the recovery bin and are located inside the recovery bin, the servo motor is fixedly connected to the mounting column and is located at the lower end of the mounting column, and the output end of the servo motor passes through the mounting column, the mesh cage is fixedly connected to the output end of the servo motor and is located at the upper end of the servo motor, the stirring assembly is fixedly connected to the recovery bin and is located at the upper end of the recovery bin, and the output end of the stirring assembly is placed inside the mesh cage.

2. The protein recovery and treatment equipment for bean product wastewater according to claim 1, characterized in that: The soy product wastewater protein recovery and treatment equipment also includes a lubrication component, which is fixedly connected to the recovery bin and embedded between the recovery bin and the mesh cage.

3. The protein recovery and treatment equipment for bean product wastewater according to claim 2, characterized in that: The lubrication assembly includes an outer ring, an inner ring and rollers. The outer ring is fixedly connected to the recovery bin and embedded in the recovery bin. The inner ring is arranged inside the outer ring. The rollers are in multiple groups. Each group of rollers is respectively embedded between the outer ring and the inner ring, and each group of rollers is respectively rotatably connected to the outer ring and the inner ring.

4. The protein recovery and treatment equipment for bean product wastewater according to claim 3, characterized in that: The stirring assembly includes a stirring frame, a stirring shaft, a stirring blade and a stirring motor. The stirring frame is fixedly connected to the recovery bin and is located at the upper end of the recovery bin. The stirring motor is fixedly connected to the stirring frame and is located at the upper end of the stirring frame, and the output end of the stirring motor passes through the stirring frame. The stirring shaft is fixedly connected to the output end of the stirring motor and is located at the lower end of the stirring motor. The stirring blade is fixedly connected to the stirring shaft and is located at one end of the stirring shaft.

5. The device for recovering protein from soybean product wastewater according to claim 4, characterized in that: The recovery bin comprises a bin body and a collecting hopper, wherein the collecting hopper is fixedly connected to the bin body and is located inside the bin body.

6. The device for recovering protein from soybean product wastewater according to claim 5, characterized in that: The soy product wastewater protein recovery and treatment equipment also includes a drainage pipe group, which is connected to the sink and is located at the lower end of the sink.

7. The device for recovering protein from soybean product wastewater according to claim 6, characterized in that: The drainage pipe group includes a drainage pipe body, a drainage flange and a reinforcing rib plate. The drainage flange is fixedly connected to the drainage pipe and is sleeved on the outer wall of the drainage pipe. The drainage flange is detachably connected to the funnel by bolts. The reinforcing rib plates are in multiple groups. Each group of the reinforcing rib plates is respectively fixedly connected to the drainage pipe body and are respectively located on the outer wall of the drainage pipe body.

8. A process for recovering protein from bean product wastewater, applied to the device for recovering protein from bean product wastewater as claimed in claim 7, characterized in that: The steps include: Starting the servo motor and the stirring motor to rotate; Pour the bean product wastewater to be filtered into the mesh cage, and filter the bean product wastewater by rotating the mesh cage; The filtered wastewater is discharged through the sink, and impurities in the wastewater are filtered and intercepted by the mesh cage; The bean product wastewater after impurities are filtered out is then filtered through medical stone; The wastewater after medical stone filtration is then filtered through an activated carbon filter layer; The wastewater after activated carbon filtration is then filtered through a mixture of volcanic ash and quartz sand; Adsorb trace elements in soy product wastewater; The protein is then retained by an ultrafiltration membrane, and the retained protein is repeatedly heated and flash evaporated to make the protein percentage in the solution 80-90%; The protein solution was dried and evaporated in vacuum to obtain a protein solid.

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