Noise reduction device during cleaning of biodiesel by-product glycerin decolorization filter

Abstract

This utility model discloses a noise reduction device for cleaning a biodiesel by-product glycerin decolorization filter. It includes a material outlet connector, an upper baffle, an inner tube of the noise reducer, and an outer tube of the noise reducer. One end of the material outlet connector is connected to the upper baffle, and the other end is used to connect to the filter's discharge interface. The upper baffle is circular, with a circular hole in its center for connecting the material outlet connector. The lower end of the inner tube of the noise reducer is closed, and multiple evenly distributed diversion circles are provided on the tube wall. The upper ends of the inner and outer tubes of the noise reducer are welded and fixed to the upper baffle, while the lower end of the outer tube is open. This utility model has a simple and compact structure, good noise reduction effect, and reliable use, which can greatly reduce the noise pollution generated during the blowing operation of existing filter cleaning processes.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary devices for the production of glycerin, an organic chemical product, and specifically to a noise reduction device for cleaning a glycerin decolorization filter during the production of glycerin using crude glycerin, a byproduct of biodiesel, as raw material. Technical Background

[0002] When producing glycerol from crude glycerol, a byproduct of biodiesel production, purification, dehydration, and vacuum distillation yield refined glycerol with a purity of 95.0%-98.0% and a Hazen color of 110-150. This refined glycerol is first decolorized with 2‰-3‰ activated carbon, and then filtered to obtain finished glycerol with a purity of 95.0%-98.0% and a Hazen color ≤75. After multiple filtrations, the filter requires cleaning. The problem is that existing filter cleaning processes typically use compressed nitrogen and steam to blow-wash the filter plates. Due to the small diameter of the filter's return outlet, this process generates significant noise pollution. Therefore, a noise reduction device for cleaning the glycerol decolorization filter is necessary to address the severe noise pollution problem caused by existing filters during cleaning. Summary of the Invention

[0003] The purpose of this invention is to provide a noise reduction device for cleaning biodiesel by-product glycerin decolorization filters that is simple and compact in structure, has good noise reduction effect, and is reliable in use, so as to greatly reduce the noise pollution generated during the blowing operation of existing filters.

[0004] To achieve the above objectives, the noise reduction device for cleaning a biodiesel by-product glycerin decolorizing filter of this utility model includes a material outlet connector 1, an upper baffle 2, an inner tube 4 of the noise reducer, and an outer tube 5 of the noise reducer. One end of the material outlet connector 1 is connected to the upper baffle 2, and the other end is used to connect to the filter's discharge interface. The upper baffle 2 is circular, with a circular hole in its middle for connecting the material outlet connector 1. The lower end of the inner tube 4 of the noise reducer is closed, and multiple evenly distributed diversion circles 3 are provided on the tube wall. The upper ends of the inner tube 4 and the outer tube 5 of the noise reducer are welded and fixed to the upper baffle 2, and the lower end of the outer tube 5 is open.

[0005] The diameter of the material outlet connector 1 is 5cm; the diameter of the diversion hole 3 is 0.5cm; the diameter of the inner tube 4 of the noise reducer is 10cm and the length is 20cm; the diameter of the outer tube 5 of the noise reducer is 15cm and the length is 25cm.

[0006] When cleaning the biodiesel by-product glycerin decolorization filter, a noise reduction device is installed at the filter outlet. This device achieves two-stage expansion at the filter outlet, gradually reducing the airflow velocity and thus lowering noise. When the high-speed airflow enters the inner tube 4 of the noise reducer, its large diameter effectively reduces the airflow velocity. After passing through the circular hole in the inner tube 4 and entering the larger diameter outer tube 5, the airflow velocity is further reduced, significantly decreasing the noise generated during the filter cleaning process.

[0007] This utility model relates to a noise reduction device for cleaning a biodiesel by-product glycerin decolorizing filter, which has the following technical features and beneficial effects:

[0008] 1. When cleaning the filter, a noise reduction device is connected to the outlet of the filter to achieve two-stage expansion, which can gradually reduce the airflow speed to reduce noise, and can greatly reduce the noise generated during the filter cleaning process.

[0009] 2. It can avoid the problem of material loss and impact on the working environment caused by high-speed airflow directly hitting the return tank and splashing material.

[0010] 3. Significantly reduces the loss of atomized glycerin that cannot be recovered due to high-speed airflow. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the noise reduction device during the cleaning of the biodiesel by-product glycerin decolorization filter of this utility model.

[0012] Attached reference numerals: 1. Material outlet connector; 2. Upper baffle; 3. Diverting circular hole; 4. Noise reducer inner tube; 5. Noise reducer outer tube. Detailed Implementation

[0013] The following detailed description, in conjunction with the accompanying drawings, further illustrates the specific implementation of the noise reduction device for cleaning the biodiesel by-product glycerin decolorizing filter of this utility model.

[0014] Figure 1 As shown, the noise reduction device for cleaning a biodiesel by-product glycerin decolorizing filter of this utility model includes a material outlet connector 1, an upper baffle 2, an inner tube 4 of the noise reducer, and an outer tube 5 of the noise reducer. The material outlet connector 1 has a diameter of 5cm, one end of which is connected to the upper baffle 2, and the other end is used to connect to the filter's discharge interface. The upper baffle 2 is circular, with a 5cm diameter circular hole in its middle for connecting the material outlet connector 1. The inner tube 4 of the noise reducer has a diameter of 10cm and a length of 20cm, and its lower end is closed. Multiple evenly distributed diversion circles 3 with a diameter of 0.5cm are provided on the tube wall. The upper ends of the inner tube 4 and the outer tube 5 of the noise reducer are welded and fixed to the upper baffle 2. The outer tube 5 has a diameter of 15cm, a length of 25cm, and its lower end is open.

[0015] During operation, the high-speed airflow from the filter enters the inner tube 4 of the noise reducer through the logistics outlet connector 1. Due to the increased pipe diameter, the air pressure decreases, and the airflow speed decreases. The glycerin carried by the high-speed airflow enters the outer tube 5 of the noise reducer through the diversion hole 3. Since the wall of the outer tube 5 is perpendicular to the diversion hole 3, the glycerin carried by the high-speed airflow is blocked by the wall of the outer tube 5. At the same time, since the diameter of the outer tube 5 is larger than that of the inner tube 4, the speed of the high-speed airflow is further reduced, and the noise generated is further reduced, thereby achieving the noise reduction effect during filter cleaning.

[0016] The noise reduction device for cleaning the biodiesel by-product glycerin decolorization filter of this utility model can be connected to the filter outlet only when cleaning the filter and removed after cleaning; or it can be installed on the filter regardless of whether the filter is in production or cleaning state and does not need to be removed.

Claims

1. A noise reduction device for a biodiesel by-product glycerol decoloration filter during cleaning, characterized by: It includes a material outlet connector (1), an upper baffle (2), an inner tube (4) of the noise reducer, and an outer tube (5) of the noise reducer; one end of the material outlet connector (1) is connected to the upper baffle (2), and the other end is used to connect to the discharge port of the filter; the upper baffle (2) is circular, and a circular hole for connecting the material outlet connector (1) is provided in the middle; the lower end of the inner tube (4) of the noise reducer is closed, and multiple evenly distributed diversion circular holes (3) are provided on the tube wall; the upper ends of the inner tube (4) and the outer tube (5) of the noise reducer are welded and fixed on the upper baffle (2), and the lower end of the outer tube (5) of the noise reducer is open.

2. The noise reduction device for cleaning the biodiesel byproduct glycerin decoloring filter according to claim 1, characterized in that: The diameter of the material outlet connector (1) is 5cm; the diameter of the diversion hole (3) is 0.5cm; the diameter of the inner tube (4) of the noise reducer is 10cm and the length is 20cm; the diameter of the outer tube (5) of the noise reducer is 15cm and the length is 25cm.

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