CN214288811U

CN214288811U - A feeding detecting system for siphon scraper centrifuge

Info

Publication number: CN214288811U
Application number: CN202023229587.3U
Authority: CN
Inventors: 吴文辉
Original assignee: Guangzhou Guangzhong Separation Machinery Co ltd
Current assignee: Guangzhou Guangzhong Separation Machinery Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-09-28
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a feeding detecting system for siphon scraper centrifuge, siphon scraper centrifuge include rotary drum, feeding storehouse, charge-in pipeline, siphon pipeline and overflow pipe, and the feeding storehouse passes through charge-in pipeline and is connected with the rotary drum, and the siphon suction inlet and the siphon pipe connection of rotary drum, overflow pipe are connected with the overflow mouth of rotary drum, including feeding flow detection subassembly, feeding density detection subassembly and controller, feeding flow detection subassembly's sense terminal and charge-in pipeline are connected, and feeding density detection subassembly's sense terminal is connected with the feeding storehouse, feeding flow detection subassembly's signal end and feeding density detection subassembly's signal end all with control connection. The utility model discloses in, carry out real-time supervision to the material that gets into the rotary drum through charge-in pipeline through feeding flow detection subassembly and feeding density detection subassembly to make and detect and calculate the material and accomplish before getting into the rotary drum, solved probe material ware and time control's cooperation and controlled the feeding volume and lead to the not enough problem of precision.

Description

A feeding detecting system for siphon scraper centrifuge

Technical Field

The utility model relates to an emulsion feeding detects the control field, especially relates to a feeding detecting system for siphon scraper centrifuge.

Background

The basic process of filtration and separation of a siphon scraper centrifuge is as follows: the rotary drum is opened to a set rotating speed, and starts to be filled with materials (namely starch milk) to the rotary drum through a feeding pipeline, after the materials are filtered by a filter medium consisting of a net pressing component, a filter screen and a bottom net component, solid particles of the starch are intercepted on the surface of the filter screen, and a filter cake layer is formed after the starch solid particles are accumulated; the liquid (filtrate) passes through the filter screen, enters the siphon chamber through the pores of the bottom screen and the siphon holes, is guided out to an external pipeline system by the siphon pipe, and the starch solid particle material layer in the rotary drum is unloaded to an external starch collecting system by the scraper. In the above process, the feeding amount is controlled by the interaction of the feeding time and the detection of the mechanical probe, however, the feeding amount is controlled by only the set time and the detection of the mechanical probe, and there is a certain instability, for example, the concentration and the flow rate of the material are in a dynamic change process, which causes the data acquired by the mechanical probe to have obvious hysteresis, and further causes the feedback control to be in a hysteresis condition, which directly affects the running state of the equipment and the stability of the production system.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a feeding detecting system for siphon scraper centrifuge, it can solve traditional settlement time and the cooperation that machinery expects the ware to detect and control the feeding volume and have obvious hysteresis quality, leads to the problem of the unable stable operation of equipment running state and production system.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a feeding detecting system for siphon scraper centrifuge, siphon scraper centrifuge includes rotary drum, feeding storehouse, charge-in pipeline, siphon pipeline and overflow pipe, the feeding storehouse passes through the charge-in pipeline and is connected with the feed inlet of rotary drum, the siphon suction opening and the siphon pipe connection of rotary drum, overflow pipe is connected with the overflow mouth of rotary drum, including the feeding flow detection subassembly that is used for detecting feed flow, the feeding density detection subassembly that is used for detecting feeding density and the controller that is used for measuring current rotary drum material, the sense terminal and the charge-in pipeline of feeding flow detection subassembly are connected, the sense terminal and the feeding storehouse of feeding density detection subassembly are connected, the signal end of feeding flow detection subassembly and the signal end of feeding density detection subassembly all with control connection.

Preferably, the device also comprises a feeding valve, and the rotary drum is connected with a feeding pipeline through the feeding valve.

Preferably, still include siphon flow detection subassembly, the siphon pipeline is connected with siphon flow detection subassembly's sense terminal, siphon flow detection subassembly's signal end is connected with the controller.

Preferably, the overflow device further comprises an overflow flow metering assembly, the overflow pipeline is connected with the detection end of the overflow flow metering assembly, and the signal end of the overflow flow metering assembly is connected with the controller.

Compared with the prior art, the beneficial effects of the utility model reside in that: the material that gets into the rotary drum through charge-in pipeline carries out real-time supervision through feed flow detection subassembly and feeding density detection subassembly to make and detect and calculate the material quality and accomplish before the material gets into the rotary drum, solve traditional material detector and time control's cooperation and control the feed rate and lead to being in the condition of lagging to the feeding control of material, improved the control accuracy of contra-rotating drum feeding.

Drawings

Fig. 1 is a schematic structural view of a siphon scraper centrifuge according to the present invention.

Fig. 2 is a schematic structural view of the feeding flow detecting assembly of the present invention.

Fig. 3 is a schematic structural view of the feeding density detecting assembly of the present invention.

Fig. 4 is a schematic structural diagram of a feed detection system for a siphon scraper centrifuge according to the present invention.

In the figure: 1-rotating the drum; 2-a feeding bin; 3-a feed conduit; 4-a siphon pipe; 5-an overflow pipe; 6-a feed flow detection assembly; 7-a feed density detection assembly; 8-a feed valve.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1-4, a feeding detection system for a siphon scraper centrifuge, specifically, the siphon scraper centrifuge includes a rotary drum 1, a feeding bin 2, a feeding pipeline 3, a siphon pipeline 4 and an overflow pipeline 5, the feeding bin 2 is connected to a feeding port of the rotary drum 1 through the feeding pipeline 3, a siphon suction port of the rotary drum 1 is connected to the siphon pipeline 4, and the overflow pipeline 5 is connected to an overflow port of the rotary drum 1, preferably, the feeding detection system includes a feeding flow rate detection component 6 for detecting a feeding flow rate, a feeding density detection component 7 for detecting a feeding density, a siphon flow rate detection component for detecting a siphon flow rate, an overflow flow rate measurement component for detecting an overflow flow rate, a feeding valve 8 and a controller for measuring a current material of the rotary drum 1, a detection end of the feeding flow rate detection component 6 is connected to the feeding pipeline 3, the detection end of feeding density detection subassembly 7 is connected with feeding storehouse 2, siphon pipeline 4 is connected with siphon flow detection subassembly's detection end, overflow pipe 5 is connected with overflow flow measurement subassembly's detection end, feeding flow detection subassembly 6's signal end, feeding density detection subassembly 7's signal end siphon flow detection subassembly's signal end with overflow flow measurement subassembly's signal end all is connected with control. When judging whether the rotary drum 1 is full of material, the detection end of the feeding flow detection assembly 6 detects the feeding flow of the feeding pipeline 3 in real time and sends the detected flow to the controller in the form of analog signals through the signal end of the detection assembly, meanwhile, the detection end of the feeding density detection assembly 7 detects the density of the material in the feeding bin 2 in real time and sends the detected flow to the controller in the form of analog signals through the signal end of the detection assembly, so that the controller can complete the checking and calculation of the material before the material enters the rotary drum 1, and further, the rotary drum 1 is connected with the feeding pipeline 3 through the feeding valve 8. Preferably, the feeding valve 8 is an electromagnetic valve, when the controller judges that the rotary drum 1 is full of material and the feeding is stopped, the feeding valve 8 is used for stopping the communication between the rotary drum 1 and the feeding channel, so that the control precision is improved, and the problem that the feeding amount is controlled by the cooperation of the traditional material detector and time control to cause the feeding control of the material to be delayed is solved.

Further, in the feeding process of the rotary drum 1, a small amount of overflow may be generated or the material may form a filtrate through the filter screen, and the generated material runs off, in this embodiment, the flow in the overflow pipeline 5 is checked by the overflow flow metering component, and the flow in the siphon pipeline 4 is checked by the siphon flow metering component, so as to realize accurate control of the material in the rotary drum 1.

In this embodiment, the feed flow rate detecting unit 6, the siphon flow rate detecting unit and the overflow flow rate measuring unit are all flow meters, such as the flow monitor VES09 of SIKA, germany, and the feed density detecting unit 7 is a density sensor, such as the F2000 ultrasonic density analyzer of FIL, usa, and the controller is a siemens S7-1200 series PLC controller, and the cumulative calculated mass-related part PLC control program is as follows:

various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. The utility model provides a feeding detecting system for siphon scraper centrifuge, siphon scraper centrifuge includes rotary drum, feeding storehouse, charge-in pipeline, siphon pipeline and overflow pipe, the feeding storehouse passes through the charge-in pipeline and is connected with the feed inlet of rotary drum, the siphon mouth and the siphon pipe connection of rotary drum, overflow pipe is connected with the overflow mouth of rotary drum, its characterized in that: the rotary drum material feeding device comprises a feeding flow detection assembly for detecting feeding flow, a feeding density detection assembly for detecting feeding density and a controller for metering current rotary drum materials, wherein the detection end of the feeding flow detection assembly is connected with a feeding pipeline, the detection end of the feeding density detection assembly is connected with a feeding bin, and the signal end of the feeding flow detection assembly and the signal end of the feeding density detection assembly are both connected with a control device.

2. The feed detection system for a siphon scraper centrifuge of claim 1, wherein: the rotary drum is connected with a feeding pipeline through the feeding valve.

3. The feed detection system for a siphon scraper centrifuge of claim 1, wherein: still include siphon flow measurement subassembly, the siphon pipeline is connected with siphon flow measurement subassembly's sense terminal, siphon flow measurement subassembly's signal end is connected with the controller.

4. The feed detection system for a siphon scraper centrifuge of claim 1, wherein: the overflow flow metering device is characterized by further comprising an overflow flow metering assembly, the overflow pipeline is connected with the detection end of the overflow flow metering assembly, and the signal end of the overflow flow metering assembly is connected with the controller.