Measuring system for triose paste in vertical crystallization assisting tank

Abstract

The utility model belongs to the technical field of sugar refining crystallization assisting processes, and particularly relates to a triose paste measuring system in a vertical crystallization assisting tank, which comprises a tank body, a vertical crystallization assisting tank, a vertical crystallization assisting tank, a measuring device and a control device, and is characterized in that a stirring blade is arranged in the tank body and a stirring motor for driving the stirring blade to rotate is arranged at the top; the lower end of the measurement executing mechanism is connected with the auxiliary accompanying power mechanism through a chain; the traveling cable is located in the tank body and moves up and down synchronously with the chain; the limiting sensor is fixed at the top of the tank body; the temperature sensor is located below the limiting sensor and moves up and down synchronously with the chain. According to the triose paste measuring device, the problems existing in an existing measuring mode can be avoided, triose paste at different positions in the crystallization assisting tank can be accurately measured, and the triose paste measuring device has good market application prospects.

Description

Technical Field

[0001] The utility model belongs to the technical field of sugar-making crystal-aiding technology, and particularly relates to a measuring system for the third-grade sugar paste in a vertical crystal-aiding tank. Background Technique

[0002] During the production process of sugar factories, the crystal-aiding process mainly refers to the crystal-aiding of the third-grade sugar paste in the crystallization section, which is a very important link in the sugar-making process. The quality of the crystal-aiding process directly affects the Bx and purity of the molasses, as well as the sugar loss of the molasses. Therefore, more and more domestic sugar factories adopt vertical crystal-aiding machines to improve the crystal-aiding effect. A vertical crystal-aiding machine is a crystal growth device used for preparing single crystal materials. Based on the principle of solution solidification method, by controlling the changes in the Bx and temperature of the third-grade sugar paste, the solute is condensed into crystals from the solution. Since the Bx of the third-grade sugar paste can be more accurately controlled in the previous process, the temperature control in the crystal-aiding machine is particularly important, directly affecting the crystallization effect and sugar recovery.

[0003] The patent with the publication number CN218710578U discloses a vertical crystal-aiding machine. In this vertical crystal-aiding machine, seamless heat dissipation steel pipes form a sugar paste cooling and heating system. When the sugar paste needs to be quickly cooled during the stirring inside the tank body of the crystal-aiding machine, cold water can be introduced into the seamless heat dissipation steel pipes to quickly cool the sugar paste, replacing the natural cooling method for crystal-aiding, promoting the full absorption of sugar, and improving the sugar recovery effect. However, this vertical crystal-aiding machine does not involve the technology of measuring the temperature inside the tank.

[0004] At present, there are mainly two measurement technologies for the third-grade sugar paste in the crystal-aiding machine on the market. One is the direct measurement scheme, that is, three temperature sensors are installed inward at the upper, middle, and lower parts of the tank wall respectively; the other is to install a remote temperature measurement sensor above the tank body. In the actual working conditions of the first technical scheme, due to the characteristics of the long-term continuous operation of the crystal-aiding machine and the high viscosity and density of the third-grade sugar, the temperature measurement parts of the temperature sensors are wrapped by the sugar paste, and the measurement accuracy curve shows an inverse proportional decline trend with the working time. In the second technical scheme, due to the remote measurement, only the surface temperature of the upper-layer sugar paste can be measured, and the temperature of the internal sugar paste cannot be measured. Since both of these two technologies have certain technical deficiencies, in actual work, more often, operators operate based on experience, resulting in different levels of production efficiency and crystallization quality, and it is impossible to achieve standardization and high efficiency.

[0005] The information disclosed in this background technical section is only intended to increase the understanding of the overall background of the present utility model, and should not be regarded as an admission or any form of suggestion that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0006] The purpose of the present utility model is to provide a measurement system for massecuite in a vertical grain growth tank, so as to avoid the problems existing in the existing measurement methods and achieve accurate measurement of massecuite at different positions in the grain growth tank.

[0007] In order to achieve the above purpose, the present utility model provides the following technical solutions:

[0008] A measurement system for massecuite in a vertical grain growth tank, comprising:

[0009] A tank body, which is internally provided with stirring blades and a stirring motor for driving the rotation of the stirring blades at the top;

[0010] A measurement execution mechanism, located on one side of the top of the tank body, the lower end of which is connected to an auxiliary follow-up power mechanism through a chain;

[0011] A follow-up cable, located inside the tank body, and moving up and down synchronously with the chain;

[0012] A limit sensor, fixed on the top of the tank body;

[0013] A temperature sensor, located below the limit sensor and moving up and down synchronously with the chain.

[0014] Preferably, a cleaning mechanism is further provided above the side wall of the tank body.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] (1) The measurement system for massecuite in the vertical grain growth tank of the present utility model realizes accurate measurement of massecuite at different positions in the grain growth tank, makes it possible to accurately control the temperature of massecuite in the grain growth tank, improves the grain growth effect, and enhances the sugar recovery rate.

[0017] (2) The measurement system for massecuite in the vertical grain growth tank of the present utility model enables the first-line operators to have a basis for operation, gets rid of the operation mode relying on experience and feeling, and makes the daily control operation clearer and more accurate. Brief Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the system of the present utility model;

[0019] Figure 2 is a schematic working process diagram of the system of the present utility model. Detailed Embodiments

[0020] The technical solution of the utility model patent will be described clearly and completely below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the utility model without creative work belong to the scope of protection of the utility model.

[0021] In the description of the present utility model, it should be noted that terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the utility model.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the connection inside two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Referring to the attached Figure 1-2 , a measurement system for massecuite in a vertical grain growth tank, comprising:

[0024] A tank body, which is internally provided with stirring blades and a stirring motor for driving the rotation of the stirring blades at the top;

[0025] A measurement execution mechanism, located on one side of the top of the tank body, and its lower end is connected to an auxiliary follow-up power mechanism through a chain;

[0026] A follow-up cable, located inside the tank body, and moves up and down synchronously with the chain;

[0027] A limit sensor, fixed on the top of the tank body;

[0028] A temperature sensor, located below the limit sensor and moves up and down synchronously with the chain.

[0029] In this embodiment, a cleaning mechanism is further provided above the side wall of the tank body. The cleaning mechanism uses a high-pressure nozzle, is connected to a high-pressure water pump through a pipeline, and a switching valve is installed on the pipeline, which is controlled by a PLC. The measurement execution mechanism and the auxiliary follow-up power mechanism are respectively a motor and a gear, which are used to drive the chain to move up and down.

[0030] When the system receives a measurement instruction, it will first determine whether the sensing state of the limit sensor is at the initial position (i.e., the top of the tank). After the system determines that the sensing state of the limit sensor is at the initial position, it synchronously controls the measurement actuator and the auxiliary follow-up power mechanism to work, driving the chain, the trailing cable, and the temperature sensor to move.

[0031] While the measurement actuator is working, it sends a step feedback signal to the measurement system to be converted into a movement stroke; when the movement stroke reaches the measurement position, the PLC controller sends an instruction to pause the work of the measurement actuator and the auxiliary follow-up power mechanism. In this embodiment, the PLC controller uses Siemens Smart200.

[0032] The temperature sensor selects Meiyi SUP-WRN-Y-B, and its function is to transmit the temperature at the specified depth to the measurement system in real time.

[0033] After the measurement is completed, the measurement system synchronously controls the measurement actuator and the auxiliary follow-up power mechanism to perform the return stroke work.

[0034] When the limit sensor senses that the movement is in place, it sends a signal to the measurement system; the measurement system stops the work of the measurement actuator and the auxiliary follow-up power mechanism. The limit sensor uses the Huchuang NJK5002C Hall sensor, which is fixed at the position near the nozzle at the top of the tank, and the front-end temperature sensor for measurement is wrapped with stainless steel. The Hall sensor can sense the magnetic element at the front end of 10 mm. When the temperature sensor retracts, the Hall sensor will detect that there is metal approaching and will send a signal, thereby detecting that the device is in place.

[0035] Subsequently, the measurement system sends a control signal to the cleaning mechanism to clean the temperature sensor, avoiding affecting the measurement accuracy due to the temperature measurement part of the temperature sensor being wrapped by sugar paste.

[0036] The measurement system not only needs to achieve precise control of the measurement actuator and the identification and conversion of feedback signals, but also needs to perform linkage control on the limit sensor and the cleaning structure, and finally achieve temperature acquisition of the measurement depth.

[0037] The internal propylene sugar paste measurement system of the vertical grain growth assisting tank of the present utility model effectively integrates software control technology and mechanical actuators to achieve the purpose of measurement, can avoid the problems existing in the existing measurement methods, realizes precise measurement of propylene sugar paste at different positions in the grain growth assisting tank, is very practical, and has good market application prospects.

[0038] The foregoing description of the specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations are possible in light of the above teaching. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A measuring system for massecuite in a vertical grain growth tank, characterized in that, Comprising: A tank body, which is internally provided with stirring blades and a stirring motor for driving the rotation of the stirring blades at the top; A measurement actuator, located on one side of the top of the tank body, and its lower end is connected to an auxiliary follow-up power mechanism through a chain; A follow-up cable, located inside the tank body, and moves up and down synchronously with the chain; A limit sensor, fixed on the top of the tank body; A temperature sensor, located below the limit sensor and moves up and down synchronously with the chain.

2. The measuring system for the internal massecuite of the vertical grain growth tank according to claim 1, wherein A cleaning mechanism is further provided above the side wall of the tank body.

Images