Organic matter removing device

Abstract

The utility model discloses an organic matter removing device which comprises a reaction tank, a material feeding pipe is arranged in the middle of the reaction tank, the bottom of the reaction tank is further communicated with a mixer through a pipeline, the mixer is communicated with the top of the reaction tank through a backflow pipeline, and a hydrogen peroxide feeding pipe is further arranged at a feeding port of the mixer. The device for removing the organic matters is simple in structure, hydrogen peroxide decoloration is exothermic reaction, and the device does not need an external heat source. According to the device, hydrogen peroxide and decoloring materials are fully mixed in multiple sections and react for decoloring, and the decoloring effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of organic matter removal and decolorization, in particular to an organic matter removal device. Background Art

[0002] In the field of high-purity chemical and pharmaceutical industries, the materials that need to be decolorized generally have very low impurity content. In the process of removing organic matter, it is necessary to consider the impact of corrosion of the equipment on the quality of the material to avoid introducing new impurities.

[0003] In this industry, hydrogen peroxide deorganization devices often use microchannel reactors to remove organic matter from materials by hydrogen peroxide reaction. However, in the decolorization process of microchannel reactors used for high-purity, high-temperature, and highly corrosive materials, the microchannel corrosion becomes larger because the microchannel reactor is not resistant to corrosion (including fluorine resistance), which affects the decolorization reaction. Summary of the invention

[0004] The purpose of the utility model is to provide a device for removing organic matter in order to make up for the shortcomings of the prior art.

[0005] The technical solution of this utility model:

[0006] An organic matter removal device comprises a reaction tank, wherein a material feed pipe is arranged at the bottom of the reaction tank, the bottom of the reaction tank is also connected with a mixer through a pipeline, the mixer is connected with the top of the reaction tank through a reflux pipeline, and a hydrogen peroxide feed pipe is also arranged at the mixer inlet.

[0007] Preferably, the bottom of the reaction tank is connected to the mixer via a pipeline via a circulation pump.

[0008] Preferably, the upper part of the reaction tank is a discharging and non-condensable gas exhausting area; the middle part is a feeding area; and the lower part is provided with a filler reaction area, so that the material that has not completely reacted with hydrogen peroxide can be fully mixed with hydrogen peroxide again to continue the reaction.

[0009] Further preferably, the middle portion of the reaction tank is connected to a material feed pipe.

[0010] Preferably, a discharge pipe is provided at the upper portion of the reaction tank.

[0011] Preferably, a discharge sampling port is provided on the discharge pipe.

[0012] Preferably, the material feed pipe is provided with a feed sampling port.

[0013] Preferably, flow valves are provided on the material feed pipe and the hydrogen peroxide feed pipe.

[0014] Preferably, the device is made of steel lined with polytetrafluoroethylene or polytetrafluoroethylene material.

[0015] The utility model has the following beneficial effects:

[0016] (1) This device has a simple structure, good decolorization effect, and a wide range of trials. This device provides liquid sealing conditions for the feed material and can be used in production devices that require liquid sealing. The hydrogen peroxide deorganization reaction requires high temperature conditions, and hydrogen peroxide deorganization brings water into the material. This device can be used in conjunction with the vacuum liquid seal concentration process in the previous stage to reduce the investment in other reaction heat sources and equipment.

[0017] (2) The entire device is made of steel-lined polytetrafluoroethylene material, and the mixer is made of polytetrafluoroethylene material, which can meet the production conditions of strong acid, high temperature and high corrosion, and will not introduce new impurities into the materials in the device, and will not cause the decolorization effect to decrease due to device corrosion.

[0018] (3) This device can control the ratio of hydrogen peroxide flow rate and feed material flow rate, and the decolorization process can be flexibly produced or adjusted to meet the decolorization process of materials in different states. The operation is extremely simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] In the figure: a material feed pipe, b reaction tank, c circulation pump, d hydrogen peroxide feed pipe, e mixer, f discharge pipe, g feed sampling port, h discharge sampling port. DETAILED DESCRIPTION

[0021] The following will be combined with the specific 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 of 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] An organic matter removal device comprises a reaction tank b, wherein a material feed pipe a is arranged at the bottom of the reaction tank b, the bottom of the reaction tank b is also connected with a mixer e through a pipeline, the mixer e is connected with the top of the reaction tank b through a reflux pipeline, and a hydrogen peroxide feed pipe d is also arranged at the inlet of the mixer e.

[0024] Preferably, the bottom of the reaction tank b is connected to the mixer e through a pipeline via a circulation pump c.

[0025] Preferably, the mixer e is a pipeline mixer.

[0026] Preferably, the upper part of the reaction tank b is a discharging and non-condensable gas exhausting area; the middle part is a feeding area; and the lower part is provided with a filler reaction area, so that the material that has not completely reacted with hydrogen peroxide can be fully mixed with hydrogen peroxide again to continue the reaction.

[0027] Further preferably, the middle of the reaction tank b is connected to the material feed pipe a. Preferably, a discharge pipe f is provided at the upper part of the reaction tank b.

[0028] Preferably, a discharge sampling port h is provided on the discharge pipe f.

[0029] Preferably, flow valves are provided on the material feed pipe a and the hydrogen peroxide feed pipe d.

[0030] Preferably, the material feed pipe a is provided with a feed sampling port g.

[0031] Application Example 1

[0032] The device of embodiment 1 is used, comprising the following steps:

[0033] (1) The material organic wastewater enters the bottom of the reaction tank b through the material feed pipe a, causing the liquid level of the reaction tank b to rise. When the feed volume reaches 1 / 3 of the volume of the reaction tank b, the circulation pump c is turned on to pump the organic wastewater into the mixer e, and then the organic wastewater flows back to the reaction tank b;

[0034] (2) Control the feed flow rate of organic wastewater to 20m3 / h and the feed temperature to 99℃. At the same time, control the hydrogen peroxide to enter the inlet pipe of mixer e through (d hydrogen peroxide feed pipe) and control the hydrogen peroxide flow rate to 0.5m3 / h. At this time, hydrogen peroxide and materials enter mixer e together, where they are fully mixed and decolorization process occurs, so that hydrogen peroxide fully oxidizes organic matter in organic wastewater.

[0035] (3) When the liquid level in reaction tank b rises to the position of discharge pipe f, the material is discharged. By sampling and analyzing the color and organic carbon content of the organic wastewater at the feed sampling port g and the discharge sampling port h, the flow rates of hydrogen peroxide and organic wastewater are adjusted to be stable at 40m3 / h and 1m3 / h to achieve the best decolorization and organic matter removal effects.

[0036] (4) The organic wastewater indicators were sampled and analyzed at the feed sampling port g and the discharge sampling port h. The measured values ​​are as follows: The organic carbon of the organic wastewater feed sampling port was 240ppm. The organic carbon of the organic wastewater discharge sampling port was 24ppm, and the organic matter removal rate reached 90%.

[0037] Application Example 2

[0038] The device of embodiment 1 is used, comprising the following steps:

[0039] (1) The material organic wastewater enters the bottom of the reaction tank b through the material feed pipe a, causing the liquid level of the reaction tank b to rise. When the feed volume reaches 1 / 3 of the volume of the reaction tank b, the circulation pump c is turned on to pump the organic wastewater into the mixer e, and then the organic wastewater flows back to the reaction tank b;

[0040] (2) The feed flow rate of organic wastewater is controlled to be 40m3 / h, the feed temperature is 97℃, and the hydrogen peroxide is controlled to enter the inlet pipe of mixer e through hydrogen peroxide feed pipe d, and the hydrogen peroxide flow rate is controlled to be 0.6m3 / h. At this time, hydrogen peroxide and materials enter mixer e together, where they are fully mixed and continuously cut by the mixer, and a decolorization reaction process occurs between the two, so that the hydrogen peroxide fully oxidizes the organic matter in the organic wastewater.

[0041] (3) When the liquid level in reaction tank b rises to the position of discharge pipe f, the material is discharged. By sampling and analyzing the color of the organic wastewater at the feed sampling port g and the discharge sampling port h, the flow rates of hydrogen peroxide and organic wastewater are adjusted to be stable at 20m3 / h and 0.3m3 / h respectively, so that the decolorization effect is within the target range.

[0042] (4) The organic wastewater indicators were sampled and analyzed at the feed sampling port g and the discharge sampling port h. The measured values ​​are as follows: The organic carbon of the organic wastewater feed sampling port was 198ppm. The organic carbon of the organic wastewater discharge sampling port was 18ppm, and the organic matter removal was 92%.

[0043] Application Example 3

[0044] The device of embodiment 1 is used, comprising the following steps:

[0045] (1) The material organic wastewater enters the bottom of the reaction tank b through the material feed pipe a, causing the liquid level of the reaction tank b to rise. When the feed volume reaches 1 / 3 of the volume of the reaction tank b, the circulation pump c is turned on to pump the organic wastewater into the mixer e, and then the organic wastewater flows back to the reaction tank b;

[0046] (2) Control the feed flow rate of organic wastewater to 40m3 / h and the feed temperature to 95℃. At the same time, control the hydrogen peroxide to enter the inlet pipe of (e mixer) through (d hydrogen peroxide feed pipe) and control the hydrogen peroxide flow rate to 0.8m3 / h. At this time, the hydrogen peroxide and the material enter the (e mixer) together, where they are fully mixed and continuously cut by the mixer. The two undergo a decolorization reaction process, so that the hydrogen peroxide fully oxidizes the organic matter in the organic wastewater.

[0047] (3) When the liquid level in (b reaction tank) rises to the position of the discharge pipe f, the material is discharged. By sampling and analyzing the color of the organic wastewater at the feed sampling port g and the discharge sampling port h, the flow rates of hydrogen peroxide and organic wastewater are adjusted to be stable at 20m3 / h and 0.4m3 / h respectively, so that the decolorization effect is within the target range.

[0048] (4) The organic wastewater indicators were sampled and analyzed at the feed sampling port g and the discharge sampling port h. The measured values ​​are as follows: The organic carbon of the organic wastewater feed sampling port was 205ppm. The organic carbon of the organic wastewater discharge sampling port was 25ppm, and the organic matter removal was 88%.

[0049] The above are only relatively preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An organic matter removal device, comprising a reaction tank (b), characterized in that: A material feed pipe (a) is provided at the bottom of the reaction tank (b), the bottom of the reaction tank (b) is also connected to the mixer (e) through a pipeline, the mixer (e) is connected to the top of the reaction tank (b) through a reflux pipeline, and a hydrogen peroxide feed pipe (d) is also provided at the feed inlet of the mixer (e).

2. The organic matter removal device according to claim 1, characterized in that: The bottom of the reaction tank (b) is connected to the mixer (e) through a pipeline via a circulation pump (c).

3. The organic matter removal device according to claim 1, characterized in that: The mixer (e) is a pipeline mixer.

4. The organic matter removal device according to claim 1, characterized in that: The upper part of the reaction tank (b) is a discharge area and a non-condensable gas discharge area; the middle part is a feed area; and the lower part is a filler reaction area.

5. The device for removing organic matter according to claim 4, characterized in that: The middle part of the reaction tank (b) is connected to the material feed pipe (a).

6. The organic matter removal device according to claim 1, characterized in that: A discharge pipe (f) is provided at the top of the reaction tank (b).

7. The device for removing organic matter according to claim 6, characterized in that: The discharge pipe (f) is provided with a discharge sampling port (h).

8. The organic matter removal device according to claim 1, characterized in that: The material feed pipe (a) is provided with a feed sampling port (g).

9. The organic matter removal device according to claim 1, characterized in that: The material feed pipe (a) and the hydrogen peroxide feed pipe (d) are provided with flow valves.

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