Helical ribbon mixer

Abstract

The utility model discloses a helical ribbon mixer which comprises a stirring tank, a stirrer arranged in the stirring tank and a driving device used for driving the stirrer to rotate, the stirring tank is divided into a plurality of sections of stirring areas, each section of stirring area is provided with a temperature sensor, and the outer side of each section of stirring area is provided with a temperature control jacket. The lower end of the temperature control jacket is connected with a water inlet pipe, the upper end of the temperature control jacket is connected with a water outlet pipe, and a flow control valve is arranged between the temperature control jacket and the water inlet pipe. The stirrer comprises a stirring rod and a spiral stirring blade. The stirring rod is of a hollow structure, and a water passing channel is formed in the hollow structure. A plurality of feed ports are formed in the top of the stirring tank, and a plurality of discharge ports are formed in the bottom of the stirring tank. And the temperature control jacket can control the temperature in the mixing process to prevent the materials from going bad. The temperature control jackets are arranged in different areas, the opening and closing amount of the flow control valves can be adjusted according to temperature data of the temperature sensors, the cold water inlet amount is adjusted, the temperatures of all the areas tend to be consistent, and the problem that temperature control is not uniform is solved.

Description

Technical Field

[0001] The utility model relates to the field of stirring and mixing equipment, in particular to a spiral ribbon mixer. Background Art

[0002] In the feed production process, the enzymatic hydrolyzate is centrifuged to obtain the supernatant and precipitate, which are then concentrated and dried. The solid mixing uniformity is poor and the temperature is high. It is necessary to reduce the coefficient of variation of the mixing uniformity and cool it before entering the packaging stage to improve the average quality of the feed. The traditional process is to stir the feed in small batches after the material is cooled or at high temperature. It takes a long time to get the finished product, and may even get a deteriorated product, which greatly damages the quality of the feed and increases the cost of production.

[0003] Although the existing mixer can achieve the purpose of mixing during operation, it has some disadvantages: the main disadvantage is that it has no function of reducing the temperature of the feed online, the feed is enzymatically hydrolyzed in the liquid and then centrifugally dried, and then enters the mixer and is prone to spoilage, and the coefficient of variation of the mixing uniformity is high, resulting in unstable feed quality. Secondly, the existing mixer can only achieve small-batch mixing, and cannot achieve large-batch continuous mixing of feed, resulting in low production efficiency.

[0004] At present, the conventional cooling method mainly uses cold water circulation for cooling. One is to let cold water enter the stirring rod for cooling, and the other is to let cold water enter the jacket layer of the stirring tank for cooling. The first method is difficult to achieve uniform cooling due to insufficient contact between the stirring material and the stirring rod. The second method is suitable for small stirring equipment. It is difficult to ensure uniform internal cooling for large stirring equipment. Uneven cooling will cause local material deterioration and affect the overall material level. Utility Model Content

[0005] The utility model aims to provide a ribbon mixer to solve the problems of low cooling efficiency and uneven temperature control when the existing mixing equipment processes large quantities of materials.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a ribbon mixer, comprising: a stirring tank, an agitator arranged in the stirring tank and a driving device for driving the agitator to rotate, the stirring tank is 8 meters long, and due to its long length, the stirring tank can be divided into multiple stirring areas, and a temperature sensor is arranged in each stirring area to achieve temperature control, and a temperature control jacket is arranged outside each stirring area, the lower end of the temperature control jacket is connected to a water inlet pipe, the upper end of the temperature control jacket is connected to a water outlet pipe, and a flow control valve is arranged between the temperature control jacket and the water inlet pipe. By controlling the amount of cold water inlet, the temperature of each stirring area is coordinated to achieve the optimal cooling efficiency.

[0007] As a further improvement of the above technical solution:

[0008] The stirrer comprises a stirring rod and a spiral stirring blade.

[0009] The stirring rod is a hollow structure, and a water passage is arranged in the hollow structure.

[0010] The top of the stirring tank is provided with a plurality of feeding ports, and the bottom of the stirring tank is provided with a plurality of discharging ports.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model discloses a screw ribbon mixer with large capacity, which can mix large quantities of materials at the same time. A temperature control jacket is provided to control the temperature of the mixing process to prevent the material from deteriorating during mixing. By setting the temperature control jacket in different areas, the opening and closing amount of the flow control valve can be adjusted in combination with the temperature data of the temperature sensor, and the cold water intake can be adjusted so that the temperature of each area tends to be consistent, thus solving the problem of uneven temperature control. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a structural schematic diagram of the utility model ribbon mixer;

[0014] Figure 2 This is one of the internal structure schematic diagrams of the utility model ribbon mixer;

[0015] Figure 3 This is the second schematic diagram of the internal structure of the ribbon mixer of the utility model;

[0016] Figure 4 This is the third schematic diagram of the internal structure of the ribbon mixer of the utility model.

[0017] Figure numerals: 1. stirring tank; 11. feed port; 12. discharge port; 2. agitator; 21. stirring rod; 22. spiral stirring blade; 23. water passage; 3. driving device; 4. temperature control jacket; 5. water inlet pipe; 6. water outlet pipe; 7. flow control valve. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate directions or positions, and the relationship is based on the directions or positional relationships shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] like Figures 1 to 3 As shown, the ribbon mixer of this embodiment includes: a mixing tank 1, an agitator 2 arranged in the mixing tank 1 and a driving device 3 for driving the agitator 2 to rotate, the driving device 3 includes a motor and a planetary reducer, the planetary reducer is small in size and has a large torque, and can realize full automatic control. The mixing tank 1 is divided into multiple mixing areas, each mixing area is provided with a temperature sensor, and a temperature control jacket 4 is provided on the outside of each mixing area. The lower end of the temperature control jacket 4 is connected to a water inlet pipe 5, and the upper end of the temperature control jacket 4 is connected to a water outlet pipe 6. A flow control valve 7 is provided between the temperature control jacket 4 and the water inlet pipe 5. The flow control valve 7 is controlled by an automatic control system, which can adjust the water inlet amount of the water inlet pipe 5, thereby changing the water flow rate in the temperature control jacket 4, and controlling the temperature in the temperature control jacket 4.

[0024] The stirrer 2 includes a stirring rod 21 and a spiral stirring blade 22. The stirring rod 21 and the spiral stirring blade 22 are connected in a non-fixed manner, that is, they are not connected in a non-detachable manner such as welding, but can be connected in a bolted manner, so that it is easy to disassemble, repair, and replace the stirring blade.

[0025] The top of the mixing tank 1 is provided with a plurality of feed ports 11, and the bottom of the mixing tank 1 is provided with a plurality of discharge ports 12. The discharge ports 12 are automatically controlled doors, and can be remotely controlled to open the door for unloading.

[0026] Example 2

[0027] like Figure 3 and Figure 4 As shown, the stirring rod 21 is a hollow structure, and a water passage 23 is provided in the hollow structure. In order to facilitate operation, the transmission mode of the driving device 3 is improved here, and non-direct transmission modes such as belt drive, gear drive, and chain drive are adopted, so that the water passage 23 is connected to the water tank. The water passage 23 here can be a one-way transport, that is, cooling in a way of water inlet at one end and drainage at the other end. It can also be a structure with water inlet and outlet at the same end. In this case, the water passage includes a water inlet and a water outlet. The design of the stirring rod cooling here is a conventional design in the field and is not detailed here.

[0028] When the utility model is in use, the material is put into the stirring tank 1 from the feed port 11, the driving device 3 is started to drive the stirring rod to rotate, and the stirring blade 22 rotates with the stirring rod 21 to stir and mix the material. After the stirring and mixing is completed, it is discharged through the discharge port 12. Since the material of the utility model has a certain temperature when entering, and the temperature will rise during the stirring and mixing process, in order to cool it, firstly, cold water is passed into the stirring rod 21, and the temperature is reduced by the contact between the material and the stirring rod 21. Since its cooling effect is general, the utility model is set to pass cold water into the temperature control jacket 4 and discharge it, so that the heat in the stirring tank 1 is taken away to achieve cooling.

[0029] Due to the large size of the mixing tank and the lack of a fixed moving direction for the material, different temperatures will occur in different areas. In order to further improve the effect, the utility model is provided with a temperature sensor. By importing its temperature data into the control system and simulating and learning the temperature data, the temperature change can be predicted, and the influence of the cold water intake on the temperature change can be substituted into it to obtain a database of the influence of the flow rate on the temperature change. The opening and closing amount of the optimal flow control valve 7 can be found in the database according to the actual temperature of the temperature sensor. The flow control valve 7 of the utility model can be adjusted in real time to improve the cooling efficiency. It can be understood here that when the flow control valve 7 opens and closes, the amount of cold water entering the temperature control jacket 4 per unit time will change. It can effectively avoid the occurrence of local high temperatures and prevent the material from deteriorating during the mixing process.

[0030] The control system here is only an intelligent form, and the temperature can also be controlled by manually controlling or simply programming the opening and closing amount of the flow control valve 7 by obtaining the corresponding data interval through data statistics.

[0031] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A ribbon mixer, comprising: A stirring tank (1), an agitator (2) arranged in the stirring tank (1), and a driving device (3) for driving the agitator (2) to rotate, characterized in that the stirring tank (1) is divided into multiple stirring areas, each stirring area is provided with a temperature sensor, a temperature control jacket (4) is provided on the outside of each stirring area, the lower end of the temperature control jacket (4) is connected to a water inlet pipe (5), the upper end of the temperature control jacket (4) is connected to a water outlet pipe (6), and a flow control valve (7) is provided between the temperature control jacket (4) and the water inlet pipe (5).

2. The ribbon mixer according to claim 1, characterized in that: The stirrer (2) comprises a stirring rod (21) and a spiral stirring blade (22).

3. The ribbon mixer according to claim 2, characterized in that: The stirring rod (21) is a hollow structure, and a water passage (23) is provided in the hollow structure.

4. The ribbon mixer according to claim 1, characterized in that: The top of the stirring tank (1) is provided with a plurality of feed ports (11), and the bottom of the stirring tank (1) is provided with a plurality of discharge ports (12).

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