Evaporation material leakage prevention device for concentration crystallizing tank

Abstract

The utility model belongs to the technical field of evaporation and crystallization, and particularly relates to an evaporation material leakage prevention device for a concentration and crystallization tank. The top of the concentration crystallizing tank is communicated with a vacuum pipeline; the evaporation material leakage prevention device is arranged in the concentration crystallization tank and is positioned at the joint of the concentration crystallization tank and the vacuum pipeline; the evaporation material leakage prevention device is provided with a conical baffle plate for collecting small liquid drops generated in the vacuum evaporation and concentration process of the crystallizing tank; the conical baffle plate is fixed in the concentration crystallizing tank, and a gap is formed between the conical baffle plate and the top of the concentration crystallizing tank; a material leakage prevention baffle net is arranged in a gap between the conical baffle plate and the top of the concentration crystallization tank; a cylindrical metal filter used for conducting secondary filtering on small liquid drops is arranged in the material leakage preventing blocking net. And the upper end of the cylindrical metal filter is communicated with the vacuum pipeline. According to the utility model, small liquid drops are evaporated by multiple cycles, so that the loss of materials is further reduced, and the crystallization efficiency of a production unit is improved.

Description

Technical Field

[0001] This utility model belongs to the field of evaporation crystallization technology, specifically relating to an evaporation anti-discharge device for a concentration crystallization tank. Background Technology

[0002] During the vacuum evaporation and concentration process in the crystallizer, the material is in a boiling state. As the material concentration increases, the viscosity increases accordingly. Boiling generates bubbles, and after the bubbles burst, a large number of small droplets containing material are formed. Under vacuum conditions, these small droplets containing material are easily sucked into the condensate pipe, resulting in material loss. Utility Model Content

[0003] The purpose of this invention is to propose an evaporation-preventing device for a concentration crystallizer, which can reduce material loss through structural design.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] An evaporation anti-spillage device for a concentration crystallizer, wherein the top of the concentration crystallizer is connected to a vacuum pipe; the evaporation anti-spillage device is installed inside the concentration crystallizer and located at the junction of the concentration crystallizer and the vacuum pipe; the evaporation anti-spillage device has a conical baffle for collecting small droplets generated during the vacuum evaporation concentration process in the crystallizer; the conical baffle is fixed inside the concentration crystallizer, and there is a gap between the conical baffle and the top of the concentration crystallizer; an anti-spillage mesh for preliminary filtration of small droplets is installed within the gap between the conical baffle and the top of the concentration crystallizer; the anti-spillage mesh is a cylindrical structure and is fixed between the conical baffle and the top of the concentration crystallizer; a cylindrical metal filter for secondary filtration of small droplets is installed inside the anti-spillage mesh; the upper end of the cylindrical metal filter is connected to the vacuum pipe.

[0006] The mesh diameter of the material-preventing barrier is 5mm.

[0007] The cylindrical metal filter is made of a 60-mesh sieve.

[0008] This invention proposes an evaporation anti-leakage device for a concentration crystallizer. It involves installing a conical baffle, an anti-leakage screen, and a cylindrical metal filter inside the concentration crystallizer. The anti-leakage screen and cylindrical metal filter perform two filtrations on the small droplets removed by vacuum. This prevents the small droplets from escaping and also avoids backflow of foreign matter and black spots from the condenser during vacuum unloading, thus preventing contamination. The conical baffle also traps and collects the small droplets, allowing them to flow back into the evaporation system. This repeated cycle of evaporation further reduces material loss and improves the crystallization efficiency of the production unit. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] In the diagram: 1. Concentrated crystallizer, 2. Vacuum pipeline, 3. Condenser, 4. Conical baffle, 5. Anti-slip mesh, 6. Cylindrical metal filter, 7. Fixing bolts. Detailed Implementation

[0011] The present invention will be described in detail with reference to the accompanying drawings and specific embodiments:

[0012] like Figure 1 As shown, an evaporation anti-leakage device for a concentration crystallizer 1 is disclosed. The top of the concentration crystallizer 1 is connected to a vacuum pipe 2. The evaporation anti-leakage device is installed inside the concentration crystallizer 1 and located at the junction of the concentration crystallizer 1 and the vacuum pipe 2. The evaporation anti-leakage device has a conical baffle 4 for collecting small droplets generated during the vacuum evaporation concentration process in the crystallizer. The conical baffle 4 is fixed inside the concentration crystallizer 1, and there is a gap between the conical baffle 4 and the top of the concentration crystallizer 1. The conical baffle 4 is fixed inside the concentration crystallizer 1 by three fixing bolts 7, one end of which is welded to the tank wall, and the other end is fixed with bolts. A conical baffle 4; a material-preventing baffle 5 for preliminary filtration of small droplets is provided within the gap between the conical baffle 4 and the top of the concentration crystallization tank 1; the material-preventing baffle 5 has a diameter of 300 mm; the material-preventing baffle 5 is a cylindrical structure and is fixed between the conical baffle 4 and the top of the concentration crystallization tank 1; the mesh diameter of the material-preventing baffle 5 is 5 mm; a cylindrical metal filter 6 for secondary filtration of small droplets is provided inside the material-preventing baffle 5; the upper end of the cylindrical metal filter 6 is connected to a vacuum pipe; the cylindrical metal filter 6 is made of a 60-mesh sieve.

[0013] Conical baffles can block and collect small droplets, allowing them to flow back into the evaporation system; a spillway baffle can block small droplets from the sides. A cylindrical metal filter installed inside the spillway baffle further prevents small droplets from escaping and also avoids backflow of foreign matter and black spots from inside the condenser into the material during vacuum unloading operations, preventing contamination. This device reduces material loss, significantly lowers costs, and improves product quality. This device is mainly used in the crystallization, concentration, and evaporation unit operation of D-type amino acids such as D-tryptophan, D-serine, D-phenylalanine, and D-p-hydroxyphenylglycine.

Claims

1. An evaporation anti-spillage device for a concentration crystallizer, wherein the top of the concentration crystallizer is connected to a vacuum pipe; characterized in that: An evaporation anti-spillage device is installed inside a concentration crystallization tank, located at the junction of the tank and the vacuum pipeline. This device includes a conical baffle for collecting small droplets generated during the vacuum evaporation and concentration process in the crystallization tank. The conical baffle is fixed inside the concentration crystallization tank, with a gap between it and the top of the tank. An anti-spillage mesh is installed within this gap for preliminary filtration of the small droplets. This mesh is cylindrical and fixed between the conical baffle and the top of the tank. A cylindrical metal filter is installed within the mesh for secondary filtration of the small droplets. The upper end of the cylindrical metal filter is connected to the vacuum pipeline.

2. The evaporation anti-spillage device for a concentration crystallizer as described in claim 1, characterized in that: The mesh diameter of the material-preventing barrier is 5mm.

3. The evaporation anti-spillage device for a concentration crystallizer as described in claim 1, characterized in that: The cylindrical metal filter is made of a 60-mesh sieve.

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