Forced circulation grinding double-effect concentrator

Abstract

The utility model discloses a forced circulation grinding double-effect concentrator, which particularly relates to the technical field of agricultural product processing instruments and comprises a first-effect heat exchanger, a first-effect evaporation chamber, a second-effect heat exchanger, a second-effect evaporation chamber and a condenser which are sequentially connected through pipelines. A first circulating pump and a first grinding machine are sequentially connected between the first-effect evaporation chamber and the first-effect heat exchanger, a first sampling opening is formed in a pipeline between the first circulating pump and the first grinding machine, and a second circulating pump and a second grinding machine are sequentially connected between the second-effect evaporation chamber and the second-effect heat exchanger. A second sampling opening is formed in the pipeline between the second circulating pump and the second grinding machine, and the second-effect evaporation chamber is connected with a condenser. The device has the advantages of being capable of accelerating feed liquid circulation of the heat exchanger, grinding and emulsifying concentrated materials, reducing wall sticking and scaling, and saving energy.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product processing equipment technology, and more specifically, to a forced circulation grinding double-effect concentrator. Background Technology

[0002] Animal protein hydrolysate pastes are increasingly used in animal feed. For concentrating animal protein hydrolysates into pastes, a double-effect evaporator is a good choice. Double-effect evaporators utilize external heating, natural circulation, and vacuum negative pressure, resulting in rapid evaporation and high concentration. They are widely used in the pharmaceutical industry and also have some applicability in paste feed processing.

[0003] Animal protein hydrolysate is an organic mixture in various molecular states, containing water-soluble and water-insoluble particles. It has a certain viscosity and high oil content, making it prone to scaling and adhesion to walls. During the later stages of concentration, oil stratification can occur, hindering water evaporation. Continuous use can easily lead to scaling inside heat exchanger pipes, requiring frequent shutdowns for cleaning, thus affecting efficiency and energy consumption. Traditional methods involve grinding the hydrolysate before the concentration stage, which is difficult to achieve thoroughly. The process also involves temporary storage of the hydrolysate in tanks, resulting in some heat loss. Double-effect concentrators require modifications to better match the production of paste feeds.

[0004] Therefore, a forced circulation grinding dual-effect concentrator is proposed. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a forced circulation grinding double-effect concentrator to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a forced circulation grinding double-effect concentrator, comprising a first-effect heat exchanger, a first-effect evaporation chamber, a second-effect heat exchanger, a second-effect evaporation chamber, and a condenser connected in sequence by pipes; a first circulation pump and a first grinder are connected in sequence between the first-effect evaporation chamber and the first-effect heat exchanger; a first sampling port is provided on the pipe between the first circulation pump and the first grinder; a second circulation pump and a second grinder are connected in sequence between the second-effect evaporation chamber and the second-effect heat exchanger; a second sampling port is provided on the pipe between the second circulation pump and the second grinder; and a condenser is connected to the second-effect evaporation chamber.

[0007] Preferably, the first grinding mill is located on the main pipeline between the first-effect heat exchanger and the first-effect evaporation chamber, and the top of the first-effect heat exchanger and one side of the first-effect evaporation chamber are connected by a first bypass pipeline.

[0008] Preferably, the second grinding mill is located on the main pipeline between the double-effect heat exchanger and the double-effect evaporator, and a second bypass pipeline is connected to the top of the double-effect heat exchanger and one side of the double-effect evaporator.

[0009] Preferably, the first and second grinding mills are used to grind and emulsify the materials.

[0010] Preferably, the discharge ports of the first grinding mill and the second grinding mill are respectively provided with a first sampling port and a second sampling port, and the first sampling port and the second sampling port can still release materials under negative pressure in the equipment chamber during normal operation of the equipment.

[0011] Preferably, both the first-effect evaporation chamber and the second-effect evaporation chamber are equipped with cleaning balls, which are used to clean the interior of the first-effect evaporation chamber and the second-effect evaporation chamber.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. During the evaporation process, the material is heated by forced circulation, which results in fast flow speed, uniform heating, high heat transfer coefficient, and prevention of dry wall phenomenon. The liquid material enters the heat exchange tube quickly through the grinder, while large particles in the hydrolysate are ground and crushed, and the oil is emulsified.

[0014] 2. The equipment integrates the traditional grinding and concentration processes, improving production efficiency and reducing the floor space required for production lines.

[0015] 3. During the grinding process, most of the mechanical energy generated by the motor is converted into the heat energy of the evaporator liquid. This reduces the dependence on the heat source of the heat exchanger. Most of the electrical energy consumed in grinding is converted into heat energy, and the electrical energy is utilized more fully.

[0016] 4. It avoids downtime for sampling and speeds up production efficiency.

[0017] 5. This utility model is applicable to the evaporation and concentration of animal protein pastes in the agricultural and animal husbandry industries. The moisture content of the paste can be lower than 45%, and it has good uniformity and does not separate after long-term storage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] The attached figures are labeled as follows: 1. First-effect heat exchanger; 2. First-effect evaporation chamber; 3. Second-effect heat exchanger; 4. Second-effect evaporation chamber; 5. Condenser; 6. First grinder; 7. First circulation pump; 8. First sampling port; 9. Second grinder; 10. Second circulation pump; 11. Second sampling port; 12. Cleaning ball. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] As attached Figure 1 The forced circulation grinding double-effect concentrator shown includes a first-effect heat exchanger 1, a first-effect evaporation chamber 2, a second-effect heat exchanger 3, a second-effect evaporation chamber 4, and a condenser 5 connected in sequence by pipes. A first circulation pump 7 and a first grinder 6 are connected in sequence between the first-effect evaporation chamber 2 and the first-effect heat exchanger 1. A first sampling port 8 is provided on the pipe between the first circulation pump 7 and the first grinder 6. A second circulation pump 10 and a second grinder 9 are connected in sequence between the second-effect evaporation chamber 4 and the second-effect heat exchanger 3. A second sampling port 11 is provided on the pipe between the second circulation pump 10 and the second grinder 9. The condenser 5 is connected to the second-effect evaporation chamber 4.

[0022] In practice, the material first enters the first-effect heat exchanger 1 for heating, and then is transported by the first circulation pump 7 to the first grinding mill 6 for processing. The processed material then flows into the first-effect evaporation chamber 2 to complete the initial evaporation and concentration. Subsequently, the material flows into the second-effect heat exchanger 3, and is sent by the second circulation pump 10 to the second grinding mill 9 for processing before entering the second-effect evaporation chamber 4 for further concentration. Finally, the steam is condensed and discharged in the condenser 5. Through forced circulation, the material flows faster in the pipeline, is heated more evenly, and has a more efficient heat transfer, effectively avoiding dry wall conditions, ensuring a smooth and stable evaporation process, and improving the overall evaporation efficiency and quality. At the same time, the concentrated material is ground and emulsified, reducing the formation of wall scale and saving energy.

[0023] The first grinding machine 6 is located on the main pipeline between the first-effect heat exchanger 1 and the first-effect evaporation chamber 2, and the top of the first-effect heat exchanger 1 and one side of the first-effect evaporation chamber 2 are connected by a first bypass pipeline.

[0024] The second grinding machine 9 is located on the main pipeline of the double-effect heat exchanger 3 and the double-effect evaporation chamber 4, and the top of the double-effect heat exchanger 3 and one side of the double-effect evaporation chamber 4 are connected to a second bypass pipeline.

[0025] In practice, when the equipment is in operation, if the material does not require grinding or encounters special working conditions, it can be directly transported from the first-effect heat exchanger 1 to the first-effect evaporation chamber 2 through the first bypass pipeline, ensuring that the system operates flexibly and reliably and adapts to diverse production needs. At the same time, depending on the material characteristics and production process, the material can be quickly transferred from the second-effect heat exchanger 3 to the second-effect evaporation chamber 4 through the second bypass pipeline, optimizing the production process and improving overall production efficiency. The establishment of the second bypass pipeline makes the operation of the second-effect process more flexible, ensuring that the equipment can accurately respond to material differences and dynamic changes in production, reducing unnecessary energy consumption and equipment wear, and improving the overall performance and production stability of the equipment.

[0026] The first grinding mill 6 and the second grinding mill 9 are used to grind and emulsify materials.

[0027] The discharge ports of the first grinding mill 6 and the second grinding mill 9 are respectively provided with a first sampling port 8 and a second sampling port 11, and the first sampling port 8 and the second sampling port 11 can still release materials under the negative pressure state of the equipment chamber when the equipment is running normally.

[0028] In practice, during the material transport process through the pipeline, the first grinding mill 6 and the second grinding mill 9 are driven to operate efficiently. Utilizing their precision mechanical structure and powerful power system, they apply appropriate grinding and emulsifying forces to the material, pulverizing and refining large particles in the animal protein hydrolysate, while simultaneously dispersing and emulsifying the oil particles evenly. This ensures the material has a uniform and delicate texture, meeting the requirements of subsequent evaporation and concentration operations. The deep grinding and emulsification functions effectively solve the problems of uneven particle size and oil agglomeration in the material, improving material uniformity and stability, significantly optimizing the evaporation and concentration effect, enhancing product quality, and expanding the product's application scope. Through the first sampling port 8 and the second sampling port 11 at the outlets of the first grinding mill 6 and the second grinding mill 9, a special sealing and sampling mechanism ensures that material samples can be smoothly obtained even when the equipment is operating under negative pressure. During operation, the sampling valve is opened according to the standard procedure, and the sampling device appropriately reduces the pressure and accurately collects the material. The valve is then closed to maintain a stable negative pressure environment, ensuring continuous equipment operation and accurate material sample acquisition.

[0029] Both the first-effect evaporation chamber 2 and the second-effect evaporation chamber 4 are equipped with cleaning balls 12, which are used to clean the interior of the first-effect evaporation chamber 2 and the second-effect evaporation chamber 4.

[0030] In practice, when cleaning is required, the valve opening and the flow and pressure parameters of the cleaning fluid are precisely controlled to drive the cleaning ball 12 to spray a high-speed cleaning fluid flow in all directions, which deeply flushes and cleans the inner wall and components of the evaporator chamber, removes dirt and impurities, and properly discharges the cleaning waste liquid. The efficient cleaning mechanism effectively addresses the problem of scaling and dirt accumulation inside the evaporator chamber, ensures stable and long-lasting heat transfer and evaporation performance of the equipment, reduces the frequency and duration of equipment maintenance, improves the reliability and overall lifespan of the equipment, and reduces the operating costs of the equipment.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A forced circulation grinding double-effect concentrator, characterized in that, The system includes a first-effect heat exchanger (1), a first-effect evaporation chamber (2), a second-effect heat exchanger (3), a second-effect evaporation chamber (4), and a condenser (5) connected in sequence by pipes. A first circulating pump (7) and a first grinding mill (6) are connected in sequence between the first-effect evaporation chamber (2) and the first-effect heat exchanger (1). A first sampling port (8) is provided on the pipe between the first circulating pump (7) and the first grinding mill (6). A second circulating pump (10) and a second grinding mill (9) are connected in sequence between the second-effect evaporation chamber (4) and the second-effect heat exchanger (3). A second sampling port (11) is provided on the pipe between the second circulating pump (10) and the second grinding mill (9). The condenser (5) is connected to the second-effect evaporation chamber (4).

2. The forced circulation grinding double-effect concentrator according to claim 1, characterized in that, The first grinding machine (6) is located on the main pipeline of the first-effect heat exchanger (1) and the first-effect evaporation chamber (2), and the top of the first-effect heat exchanger (1) and one side of the first-effect evaporation chamber (2) are connected to a first bypass pipeline.

3. The forced circulation grinding double-effect concentrator according to claim 1, characterized in that, The second grinding machine (9) is located on the main pipeline of the double-effect heat exchanger (3) and the double-effect evaporation chamber (4), and the top of the double-effect heat exchanger (3) and one side of the double-effect evaporation chamber (4) are connected to a second bypass pipeline.

4. The forced circulation grinding double-effect concentrator according to claim 1, characterized in that, The first grinding mill (6) and the second grinding mill (9) are used to grind and emulsify the materials.

5. A forced circulation grinding double-effect concentrator according to claim 1, characterized in that, The discharge ports of the first grinding mill (6) and the second grinding mill (9) are respectively provided with a first sampling port (8) and a second sampling port (11), and the first sampling port (8) and the second sampling port (11) can still release materials under negative pressure in the equipment chamber when the equipment is running normally.

6. A forced circulation grinding double-effect concentrator according to claim 1, characterized in that, Both the first-effect evaporation chamber (2) and the second-effect evaporation chamber (4) are equipped with cleaning balls (12), which are used to clean the interior of the first-effect evaporation chamber (2) and the second-effect evaporation chamber (4).

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