Recovery system for residual starch in cleaning water

Abstract

The utility model provides a system for recovering residual starch in cleaning water, which comprises a front cleaning device, the front cleaning device is arranged to be suitable for cleaning to-be-cleaned objects attached with starch through the cleaning water and outputting the cleaning water containing the starch through an output end, and the system further comprises a supporting structure with an upper layer and a lower layer, a filtering treatment device and a starch dehydration device are arranged on the upper layer of the supporting structure. According to the system for recovering the residual starch in the cleaning water, the starch-containing cleaning water generated by cleaning in the previous cleaning device is sequentially separated into starch and water through the filtering treatment device and the starch dehydration device, the starch is transferred to the starch collecting device, and the water is transferred to the clear liquid collecting device, so that the collection of the starch and the water in the starch-containing cleaning water is completed; wherein the water in the clear liquid collecting device can be continuously input into the front cleaning device, so that the water can be reused, the waste of water resources is avoided, and the technical effect of zero emission is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to starch recovery technical field especially relates to a kind of residual starch recovery system in cleaning water. BACKGROUND

[0002] To adapt to the development direction of new green production mode of energy saving, emission reduction, low carbon, pollution reduction, a certain amount of starch is contained in the cleaning water after potato is sliced in potato processing process, and the starch in starch water can be separated using a starch recovery system, so that the starch can be recycled.

[0003] However, the existing starch recovery system has the following technical problems:

[0004] A large amount of low-starch-content water is separated during the separation of starch and water, which directly discharges the low-starch-content water, causing a certain degree of waste of water resources. In addition, the devices in the existing recovery system are arranged horizontally, which occupies a large space and is not conducive to the maintenance and expansion of the system.

[0005] Therefore, to solve the above problems, the utility model provides a residual starch recovery system in cleaning water with zero emission and small horizontal space occupation. UTILITY MODEL CONTENTS

[0006] To solve the above problems of the existing starch recovery system in use, the utility model provides a residual starch recovery system in cleaning water.

[0007] According to one object of the utility model, the utility model provides a residual starch recovery system in cleaning water, which comprises a front cleaning device, the front cleaning device is arranged to clean the to-be-cleaned object attached with starch by cleaning water and output the cleaning water containing starch through an output end, and further comprises:

[0008] The upper and lower double-layer support structure is provided with a filtering treatment device and a starch dewatering device, wherein the filtering capacity of the filtering treatment device is less than that of the starch dewatering device, and the lower layer of the support structure is provided with a starch collecting device and a clear liquid collecting device;

[0009] The filtering treatment device and the starch dewatering device are provided with an input end, a starch output end and a water output end, the input end of the filtering treatment device is connected with the output end of the front cleaning device, the water output end of the filtering treatment device is connected with the input end of the starch dewatering device, the water output end of the starch dewatering device is connected with the clear liquid collecting device, the clear liquid collecting device is arranged to provide cleaning water for the front cleaning device, and the starch output end of the filtering treatment device and the starch output end of the starch dewatering device are connected with the starch collecting device.

[0010] Preferably, the starch dewatering device adopts a horizontal screw centrifuge.

[0011] Preferably, the to-be-cleaned object is potato slices, the starch dewatering device outputs a solid-phase starch with a water content of less than or equal to 55%, and a liquid-phase solid content of less than or equal to 0.05%.

[0012] Preferably, the filtering treatment device adopts a filter screen.

[0013] Preferably, the filtrate collecting device and the pre-washing device are connected through a backwater pump.

[0014] The lower layer of the support structure is provided with a control device, which controls the connection between the starch dewatering device and the backwater pump.

[0015] Preferably, the filtering treatment device and the starch dewatering device are arranged in sequence along the horizontal direction, the driving part of the starch dewatering device is located on the side away from the filtering treatment device, the control device is arranged directly below the driving part of the starch dewatering device, the filtrate collecting device is arranged directly below the water output end of the starch dewatering device, and the starch collecting device is arranged directly below the filtering treatment device.

[0016] Preferably, the side surface of the support structure is provided with a staircase, and the upper and lower layers of the support structure are connected through the staircase.

[0017] Preferably, the filtering treatment device, the starch dewatering device, the control device, the starch collecting device and the filtrate collecting device are provided with independent external expansion service modules.

[0018] Compared with the prior art, the system has the following beneficial effects:

[0019] The system can separate the starch-containing cleaning water generated in the pre-washing device into starch and water through the filtering treatment device and the starch dewatering device, transfer the starch to the starch collecting device, and transfer the water to the filtrate collecting device, so as to collect the starch and water in the starch-containing cleaning water.

[0020] The filtering treatment device, the starch dewatering device, the starch collecting device and the filtrate collecting device in the recycling system are arranged separately on the upper and lower layers of the support structure, so as to save the occupied space of the system as a whole and facilitate the maintenance and expansion of the system.

[0021] The utility model is further illustrated below in combination with the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is one perspective view of the whole cleaning water residual starch recovery system according to the utility model.

[0023] Fig. 2 It is another perspective view of the whole cleaning water residual starch recovery system according to the utility model. DETAILED DESCRIPTION

[0024] The following description is used to explain the utility model in detail to enable those skilled in the art to realize the utility model. The preferred examples in the following description are only as examples, and other obvious variants can be thought of by those skilled in the art. The basic principles of the utility model defined in the following description can be applied to other implementation schemes, variant schemes, improved schemes, equivalent schemes and other technical schemes without departing from the spirit and scope of the utility model.

[0025] Please refer to Figs. 1-2 The utility model provides a technical scheme: a cleaning water residual starch recovery system, comprising: a front cleaning device, the front cleaning device is set to be suitable for cleaning the to-be-cleaned object with starch attached by cleaning water and outputting the cleaning water containing starch through an output end, and further comprising:

[0026] The upper layer of the upper and lower double-layer support structure 100 is provided with a filtering treatment device 200 and a starch dewatering device 300, wherein the filtering capacity of the filtering treatment device 200 is less than the filtering capacity of the starch dewatering device 300, and the lower layer of the support structure 100 is provided with a control device 700, a starch collecting device 400 and a clear liquid collecting device 500;

[0027] The input end, the starch output end and the water output end are arranged on the filtering treatment device 200 and the starch dewatering device 300, the input end of the filtering treatment device 200 is connected with the output end of the front cleaning device, the water output end of the filtering treatment device 200 is connected with the input end of the starch dewatering device 300, the water output end of the starch dewatering device 300 is connected with the clear liquid collecting device 500, the clear liquid collecting device 500 is set to provide cleaning water for the front cleaning device, the starch output end of the filtering treatment device 200 and the starch output end of the starch dewatering device 300 are connected with the starch collecting device 400, and the control device 700 controls the connection of the starch dewatering device 300.

[0028] In use, the starch-containing cleaning water generated in the front cleaning device is separated into starch and water by the filtering treatment device 200 and the starch dewatering device 300 in turn, the starch is transferred to the starch collecting device 400, and the water is transferred to the clear liquid collecting device 500, so as to complete the collection of the starch and water in the starch-containing cleaning water, and the water in the clear liquid collecting device 500 can be continuously input into the front cleaning device, so as to realize the recycling of the water and achieve the technical effect of zero emission.

[0029] The devices in the recycling system are divided into upper and lower layers by the support structure 100, and the filtering treatment device 200, the starch dewatering device 300, the starch collecting device 400 and the clear liquid collecting device 500 in the recycling system are arranged on the upper layer and the lower layer of the support structure 100, so as to save the occupied space of the system as a whole.

[0030] In one of the embodiments of the utility model, the starch dewatering device 300 adopts a horizontal screw centrifuge, and the filtering treatment device 200 adopts a filter screen; preferably, the horizontal screw centrifuge outputs the starch with a water content of less than or equal to 55%, and the liquid phase contains solid with a content of less than or equal to 0.05%.

[0031] The potato slices are the objects to be cleaned, the starch-containing cleaning water output from the front cleaning device has a starch particle size of generally 35-105 μm, and the solid phase recovery rate can reach 99.5% after the treatment of the starch recycling system.

[0032] In use, the filter screen can pretreat the cleaning water output from the front cleaning device, and the horizontal screw centrifuge further separates the starch and water in the starch water, the dewatered starch is collected and recycled, for example, can be used as animal feed, and the water can be recycled as water for other processes, achieving zero emission.

[0033] The clear liquid collecting device 500 and the front cleaning device are connected by a backwater pump 600, and the control device 700 controls the connection of the backwater pump 600. In use, the backwater pump 600 pumps the treated clean water or part of the starch slurry back to the front cleaning device, so as to realize the recycling of the water in the system.

[0034] The upper layer of the support structure 100 is further provided with a hydraulic station which is arranged to provide the hydraulic power required by the system and drive the related equipment to operate.

[0035] Specifically, the filtering treatment device 200 and the starch dewatering device 300 are arranged in sequence along the horizontal direction, the driving part in the starch dewatering device 300 is located on the side away from the filtering treatment device 200, the control device 700 is arranged directly below the driving part in the starch dewatering device 300, the clear liquid collecting device 500 is arranged directly below the water output end of the starch dewatering device 300, and the starch collecting device 400 is located directly below the filtering treatment device 200.

[0036] The above reasonable distribution of each device in the system on the upper and lower layers of the support structure 100 reduces the arrangement of connecting pipelines between devices, and the entire starch recovery process can save 1 / 2 to 1 / 3 of the horizontal space compared with the traditional equipment arranged on the same horizontal plane.

[0037] The filtering treatment device 200 and the starch dewatering device 300 with filtering effect are arranged on the upper layer, and the filtered water and starch can be transferred to the clear liquid collecting device 500 and the starch collecting device 400 with collecting effect on the lower layer under the action of gravity, thereby reducing the energy consumption of the system to a certain extent.

[0038] Further, the side of the support structure 100 is provided with a staircase, and the upper and lower layers of the support structure 100 are connected through the staircase to facilitate operation, maintenance and repair.

[0039] Further, the filtering treatment device 200, the starch dewatering device 300, the control device 700, the starch collecting device 400 and the clear liquid collecting device 500 are provided with independent external expansion service modules. By adding independent external expansion service modules to each device, each part of the system can be independently debugged and maintained. If a device needs to integrate external services, only the external expansion service module of the corresponding device needs to be modified without affecting other parts of the system, making the integration process more simple and flexible, reducing repetitive work and improving development efficiency.

[0040] In summary, the recovery system modularizes and integrates each device module into one, and the core equipment of the system is a horizontal screw centrifuge. After the cleaning water containing potato starch is separated by the horizontal screw centrifuge, the water content of the solid phase is ≤55%, and the solid content in the liquid phase is ≤0.05%. The filtered clear liquid can be used as cleaning water for the front cleaning device and used when cleaning potatoes, achieving the purpose of zero emission in this process section.

[0041] The recovery system divides the devices into two layers on the support structure 100, making the system transportation, movement and installation convenient, occupying small area, having high efficiency, and running safely and environmentally friendly. The system has good clarification and separation effect, high solid phase recovery rate, and the separated clear water can be completely used as circulating water.

[0042] The above-described embodiments are only used to illustrate the technical ideas and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and the patent application range of the present application cannot be limited by the above-described embodiments, that is, any equivalent changes or modifications made according to the spirit disclosed in the present application still fall within the patent application range of the present application.

Claims

1. A starch residue in cleaning water recovery system comprising a pre-cleaning device, said pre-cleaning device being arranged to clean a starch-attached object to be cleaned by cleaning water and to output starch-containing cleaning water through an output end, characterized in that, Also include: The upper layer of the support structure (100) is provided with a filtering treatment device (200) and a starch dewatering device (300), wherein the filtering capacity of the filtering treatment device (200) is less than the filtering capacity of the starch dewatering device (300), and the lower layer of the support structure (100) is provided with a starch collecting device (400) and a clear liquid collecting device (500); The filtering treatment device (200) and the starch dewatering device (300) are provided with an input end, a starch output end and a water output end, the input end of the filtering treatment device (200) is connected with the output end of the front washing device, the water output end of the filtering treatment device (200) is connected with the input end of the starch dewatering device (300), the water output end of the starch dewatering device (300) is connected with the clear liquid collecting device (500), the clear liquid collecting device (500) is arranged to provide washing water for the front washing device, and the starch output end of the filtering treatment device (200) and the starch output end of the starch dewatering device (300) are connected with the starch collecting device (400).

2. A system for recovering residual starch from water according to claim 1, characterized in that, The starch dewatering device (300) adopts a horizontal screw centrifuge.

3. A system for recovering residual starch from water according to claim 2, wherein The to-be-cleaned object is potato slices, and the horizontal screw centrifuge outputs solid-phase starch with a water content of less than or equal to 55% and liquid-phase solid content of less than or equal to 0.05%.

4. A system for recovering residual starch in water according to claim 1, wherein The filtering treatment device (200) adopts a filter screen.

5. A system for recovering residual starch in water according to claim 1, wherein The clear liquid collecting device (500) and the front washing device are connected through a backwater pump (600); The lower layer of the support structure (100) is provided with a control device (700), and the control device (700) controls the connection of the starch dewatering device (300) and the backwater pump (600).

6. A system for recovering residual starch in water according to claim 5, wherein The filtering treatment device (200) and the starch dewatering device (300) are arranged in sequence along the horizontal direction, the driving part in the starch dewatering device (300) is located on the side away from the filtering treatment device (200), the control device (700) is arranged directly below the driving part in the starch dewatering device (300), the clear liquid collecting device (500) is arranged directly below the water output end of the starch dewatering device (300), and the starch collecting device (400) is arranged directly below the filtering treatment device (200).

7. A system for recovering residual starch in water according to claim 1, wherein The side surface of the support structure (100) is provided with a staircase, and the upper and lower layers of the support structure (100) are connected through the staircase.

8. A system for recovering residual starch in water according to claim 5, wherein The filtering treatment device (200), the starch dewatering device (300), the control device (700), the starch collecting device (400) and the clear liquid collecting device (500) are locally provided with independent external expansion service modules.

Images