Sodium hydrosulfite waste liquid separation device

Abstract

The utility model relates to the technical field of chemical equipment, in particular to a sodium hydrosulfite waste liquid separation device which comprises a separation container and a stirring unit, the separation container is of a closed containing cavity structure. The stirring unit is mounted on the separation container, and one part of the stirring unit is arranged in the separation container; a feeding hole and an air inlet which are communicated with the interior are formed in the top of the separation container; a clear liquid discharge port is formed in the lower part of the separation container, a discharge port is formed in the bottom of the separation container, and the clear liquid discharge port is higher than the discharge port. According to the sodium hydrosulfite waste liquid separation device, after the sodium hydrosulfite waste liquid is subjected to standing treatment in the separation container, clear liquid at the upper part can be separated, and solid sodium salt at the lower part can be discharged from the discharge port, so that effective separation of the sodium salt in the sodium hydrosulfite waste liquid is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical equipment, in particular to a device for separating sodium hyposulfite waste liquid. Background Art

[0002] The waste liquid of insurance powder needs to be incinerated at high temperature to convert hazardous waste into general solid waste for treatment. The incineration device of insurance powder waste liquid occupies a large area and has high investment cost. Due to the high content of solid sodium salt in the waste liquid, the refractory materials of the incinerator are seriously corroded during the incineration process, resulting in a short operation cycle of the device and high maintenance cost. If the solid sodium salt in the waste liquid is separated, the incineration amount will be greatly reduced, and the corrosion of sodium salt to refractory materials will be eliminated. The investment value of the device and the stability of operation will be greatly improved. In the waste liquid of insurance powder, solid sodium salt accounts for a high proportion, close to 50%; the rest is oily substances that are easy to solidify and have a strong odor. Ordinary separation equipment such as plate and frame filter presses cannot achieve the separation effect, and the overflow of odor poses a greater environmental risk. Utility Model Content

[0003] The utility model aims at the technical problem that it is difficult to separate solid sodium salt from sodium sulfate waste liquid in the prior art, and provides a sodium sulfate waste liquid separation device.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A device for separating sodium hypochlorite waste liquid, comprising: a separation container and a stirring unit;

[0006] The separation container is configured as a closed cavity structure;

[0007] The stirring unit is installed on the separation container, and a part of the stirring unit is arranged inside the separation container;

[0008] The top of the separation container is provided with a feed port and an air inlet connected to the interior; the lower part of the separation container is provided with a clear liquid discharge port, and the bottom of the separation container is provided with a discharge port, and the height of the clear liquid discharge port is greater than the height of the discharge port.

[0009] Furthermore, the separation container comprises: a top head, a container body and a bottom head;

[0010] The container body is configured as a hollow structure that penetrates from top to bottom;

[0011] The top seal is detachably fixedly connected to the upper end of the container body, and is used to seal the upper end of the container body; the bottom seal is detachably fixedly connected to the lower end of the container body, and is used to seal the lower end of the container body;

[0012] The top end cap is provided with the feed port and the air inlet; the lower side surface of the container body is provided with the clear liquid discharge port; and the bottom end cap is provided with the discharge port.

[0013] Furthermore, the top head is convex upward; the bottom head is concave downward, and the discharge port is opened at the lowest point of the bottom head.

[0014] Furthermore, the stirring unit comprises: a bracket, a reduction motor, a stirring shaft and a double-ribbon stirring blade;

[0015] The bracket is fixed to the top outer side of the separation container, and the reduction motor is installed on the bracket;

[0016] The stirring shaft is arranged longitudinally, the upper portion of the stirring shaft is arranged outside the separation container, and the lower portion of the stirring shaft extends to the inside of the separation container through the top of the separation container;

[0017] The upper end of the stirring shaft is connected to the reduction motor;

[0018] The double helical blades are connected to the lower part of the stirring shaft.

[0019] Furthermore, the stirring unit further comprises: a bottom support and a bearing;

[0020] The bottom support is fixed to the inner bottom of the separation container;

[0021] The bearing is mounted on the bottom support, and the lower end of the stirring shaft is connected to the bearing.

[0022] Furthermore, the stirring unit further comprises: a mechanical seal;

[0023] The mechanical seal is arranged at the junction of the stirring shaft and the separation container.

[0024] Furthermore, three clear liquid discharge ports are provided, and the three clear liquid discharge ports are equidistantly distributed longitudinally.

[0025] The hydrosulfite waste liquid separation device provided by the utility model has at least the following beneficial effects or advantages:

[0026] The utility model provides a device for separating the hydrosulfite waste liquid, wherein the separation container is arranged as a closed cavity structure. The stirring unit is mounted on the separation container, and a part of the stirring unit is arranged inside the separation container. The top of the separation container is provided with a feed port and an air inlet connected to the inside; the lower part of the separation container is provided with a clear liquid discharge port, and the bottom of the separation container is provided with a discharge port, and the height of the clear liquid discharge port is greater than the height of the discharge port. The device for separating the hydrosulfite waste liquid can separate the clear liquid above after the hydrosulfite waste liquid is statically treated in the separation container, and the solid sodium salt below can be discharged from the discharge port, thereby realizing the effective separation of the sodium salt in the hydrosulfite waste liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a device for separating sodium hyposulfite waste liquid provided in an embodiment of the utility model.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1-reduction motor, 2-bracket, 3-top head, 4-air inlet, 5-container body, 6-bottom head, 7-bottom support, 8-discharge port, 9-clear liquid discharge port, 10-double-screw stirring blades, 11-stirring shaft, 12-feed port. DETAILED DESCRIPTION

[0030] The utility model aims at the technical problem that it is difficult to separate solid sodium salt from sodium sulfate waste liquid in the prior art, and provides a sodium sulfate waste liquid separation device.

[0031] 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 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.

[0032] See also Figure 1 The embodiment of the utility model provides a device for separating waste liquid from sodium hypochlorite, including: a separation container and a stirring unit.

[0033] The separation container is configured as a closed cavity structure for loading the sodium hydrosulfite waste liquid.

[0034] The stirring unit is installed on the separation container, a part of which is arranged inside the separation container, and the stirring unit is used to stir the hydrosulfur powder solution in the separation container.

[0035] A feed inlet 12 and an air inlet 4 communicating with the interior are provided on the top of the separation container. The feed inlet 12 is used to add hydrosulfite waste liquid into the separation container, and the air inlet 4 is used to introduce gas into the separation container.

[0036] A clear liquid discharge port 9 is provided at the bottom of the separation container; in this embodiment, due to the deviation of the feed amount, three clear liquid discharge ports 9 are provided to meet different feed amounts, and the three clear liquid discharge ports 9 are equidistantly distributed longitudinally. A discharge port 8 is provided at the bottom of the separation container, and the height of the clear liquid discharge port 9 is greater than the height of the discharge port 8. The clear liquid discharge port 9 is used to discharge the supernatant of the hydrosulfite waste liquid after standing, and the discharge port 8 is used to discharge the suspension of solid sodium salt and methanol.

[0037] For details, see Figure 1 The separation container includes: a top head 3, a container body 5 and a bottom head 6. The container body 5 is configured as a hollow structure that penetrates from top to bottom. The top head 3 is detachably fixedly connected to the upper end of the container body 5, and is used to seal the upper end of the container body 5. The bottom head 6 is detachably fixedly connected to the lower end of the container body 5, and is used to seal the lower end of the container body 5. The feed port 12 and the air inlet 4 are provided with the top head 3; the clear liquid discharge port 9 is provided on the lower side of the container body 5; and the discharge port 8 is provided at the bottom head 6.

[0038] In the embodiment of the utility model, the top head 3 is convex upward, and is set to an upwardly convex spherical structure, which can increase the surface area of ​​the top head 3, and is convenient for arranging structures such as the feed port 12 and the air inlet 4 on the top head 3; the bottom head 6 is concave downward, and the discharge port 8 is opened at the lowest point of the bottom head 6, so that the suspension of solid sodium salt and methanol can be discharged outward through the discharge port 8 after converging to the lowest point.

[0039] In a preferred embodiment of the present invention, the stirring unit includes: a bracket 2, a reduction motor 1, a stirring shaft 11 and a double-spiral stirring blade 10. The bracket 2 is fixed to the top outer side of the separation container, and the reduction motor 1 is installed on the bracket 2. The stirring shaft 11 is arranged longitudinally, the upper part of the stirring shaft 11 is arranged outside the separation container, and the lower part of the stirring shaft 11 extends to the inside of the separation container through the top of the separation container. The upper end of the stirring shaft 11 is connected to the reduction motor 1; the double-spiral blade is connected to the lower part of the stirring shaft 11.

[0040] Preferably, see Figure 1 In order to prevent the liquid or gas in the separation container from overflowing, the stirring unit is also provided with a mechanical seal; the mechanical seal is arranged at the junction of the stirring shaft 11 and the separation container.

[0041] In order to ensure the reliability of the long-term operation of the stirring unit, the stirring unit also includes: a bottom support 7 and a bearing. The bottom support 7 is fixed to the inner bottom of the separation container. The bearing is installed on the bottom support 7, and the lower end of the stirring shaft 11 is connected to the bearing. The bottom support 7 provides an upward support force for the stirring shaft 11 to ensure the stability of the operation of the stirring shaft 11, and the bearing is used to realize the rotation connection of the stirring shaft 11.

[0042] See also Figure 1 The working process of the hydrosulfite waste liquid separation device provided by the embodiment of the utility model is as follows: the hydrosulfite waste liquid enters the interior of the separation container through the feed port 12, and is allowed to stand in the separation container to realize solid-liquid stratification, and then an inert gas (such as nitrogen) is filled into the separation container through the air inlet 4 to pressurize it, and the supernatant formed in the separation container is discharged from the clear liquid outlet, leaving only solid sodium salt in the separation container, and then the clear liquid outlet is closed. Methanol is then added to the separation container from the feed port 12, and the stirring unit is started to stir the substances in the separation container to form a suspension of solid sodium salt and methanol. After uniform mixing, nitrogen is added from the air inlet 4, and the uniformly mixed suspension is discharged from the discharge port 8, and then purified and recycled by other equipment.

[0043] The hydrosulfite waste liquid separation device provided by the embodiment of the utility model has at least the following beneficial effects or advantages:

[0044] The embodiment of the utility model provides a device for separating the hydrosulfite waste liquid, wherein the separation container is arranged as a closed cavity structure. The stirring unit is installed on the separation container, and a part of the stirring unit is arranged inside the separation container. The top of the separation container is provided with a feed port and an air inlet connected to the inside; the lower part of the separation container is provided with a clear liquid discharge port, and the bottom of the separation container is provided with a discharge port, and the height of the clear liquid discharge port is greater than the height of the discharge port. The device for separating the hydrosulfite waste liquid can separate the clear liquid above after the hydrosulfite waste liquid is allowed to stand in the separation container for treatment, and the solid sodium salt below can be discharged from the discharge port, thereby realizing the effective separation of the sodium salt in the hydrosulfite waste liquid.

[0045] In the description of the present utility model, it should be noted that the terminology nouns in the various embodiments, such as words indicating directions such as "upper", "lower", "front", "back", "left", "right", etc., are only for simplifying the description of the positional relationship based on the drawings in the specification, and do not mean that the referred elements and devices must be operated according to the specific directions and specified operations and methods and structures in the specification. Such directional nouns do not constitute limitations on the present utility model.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0047] The above description is only a preferred embodiment of the present invention and is 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. A device for separating waste liquid from sodium hypochlorite, characterized in that: include: Separation container and stirring unit; The separation container is configured as a closed cavity structure; The stirring unit is installed on the separation container, and a part of the stirring unit is arranged inside the separation container; The top of the separation container is provided with a feed port and an air inlet connected to the interior; the lower part of the separation container is provided with a clear liquid discharge port, and the bottom of the separation container is provided with a discharge port, and the height of the clear liquid discharge port is greater than the height of the discharge port; The stirring unit comprises: a bracket, a reduction motor, a stirring shaft and a double-ribbon stirring blade; The bracket is fixed to the top outer side of the separation container, and the reduction motor is installed on the bracket; The stirring shaft is arranged longitudinally, the upper portion of the stirring shaft is arranged outside the separation container, and the lower portion of the stirring shaft extends to the inside of the separation container through the top of the separation container; The upper end of the stirring shaft is connected to the reduction motor; The double-ribbon stirring blade is connected to the lower part of the stirring shaft.

2. The hydrosulfite waste liquid separation device according to claim 1 is characterized in that: The separation container comprises: a top head, a container body and a bottom head; The container body is configured as a hollow structure that penetrates from top to bottom; The top seal is detachably fixedly connected to the upper end of the container body, and is used to seal the upper end of the container body; the bottom seal is detachably fixedly connected to the lower end of the container body, and is used to seal the lower end of the container body; The top end cap is provided with the feed port and the air inlet; the lower side surface of the container body is provided with the clear liquid discharge port; and the bottom end cap is provided with the discharge port.

3. The hydrosulfite waste liquid separation device according to claim 2 is characterized in that: The top head is convex upward; the bottom head is concave downward, and the discharge port is arranged at the lowest point of the bottom head.

4. The hydrosulfite waste liquid separation device according to claim 3 is characterized in that: The stirring unit also includes: a bottom support and a bearing; The bottom support is fixed to the inner bottom of the separation container; The bearing is mounted on the bottom support, and the lower end of the stirring shaft is connected to the bearing.

5. The hydrosulfite waste liquid separation device according to claim 4 is characterized in that: The stirring unit further comprises: a mechanical seal; The mechanical seal is arranged at the junction of the stirring shaft and the separation container.

6. The hydrosulfite waste liquid separation device according to claim 1 is characterized in that: There are three clear liquid discharge ports, and the three clear liquid discharge ports are equidistantly distributed longitudinally.

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