Waste sulfur recovery device

Abstract

The utility model relates to the technical field of waste sulfur recovery, in particular to a waste sulfur recovery device, which comprises a recovery body and a sulfur melting tank arranged in the recovery body, a steam inlet and a steam outlet are arranged on the recovery body, the steam inlet and the steam outlet are both positioned on the outer side of the sulfur melting tank, and the steam inlet and the steam outlet are communicated with the sulfur melting tank. A feeding hole is formed in the top of the sulfur melting tank, a sulfur liquid pipe is arranged at the bottom of the sulfur melting tank, one end of the sulfur liquid pipe is communicated with the sulfur melting tank, and the other end of the sulfur liquid pipe penetrates through the recovery body and extends to the outer side of the recovery body; waste sulfur is contained in the sulfur melting tank, then steam in the recycling body is used for heating and melting the waste sulfur in the sulfur melting tank, the waste sulfur can be converted into liquid from solid, follow-up impurity filtering is facilitated, and therefore the waste sulfur recycling device is simple in overall structure, convenient to overhaul and maintain and low in cost, and waste sulfur recycling efficiency is improved while waste sulfur recycling is guaranteed. Recovery cost is reduced, and actual use requirements are met.

Description

Technical Field

[0001] The utility model relates to the technical field of waste sulfur recovery, and specifically relates to a waste sulfur recovery device. Background Art

[0002] Sulfur recovery operations often require cleaning of liquid sulfur pipelines, and inevitably, waste sulfur will be collected. Since there are many impurities in the waste sulfur and it cannot be sold or used normally, the waste sulfur often accumulates in the factory area. On the one hand, it will occupy space and cause waste. On the other hand, it will increase the storage cost and pose a safety hazard.

[0003] Therefore, in order to recycle waste sulfur, it is selected to recycle sulfur by heating it to liquefy. For example, the Chinese invention patent application with the application number 202311709981.2 provides a sulfur melter, which uses steam to heat the sulfur slurry to achieve the recovery of sulfur.

[0004] However, this device has a complex structure, high cost, high production difficulty, and high maintenance and repair difficulty. It is suitable for the demand of large-scale waste sulfur recovery and treatment, and cannot meet the actual use demand when recycling a small amount of continuously generated waste sulfur. Summary of the Utility Model

[0005] Aiming at the need to recycle a small amount of waste sulfur while reducing the recycling cost, the purpose of the utility model is to provide a waste sulfur recovery device to solve the technical problem of the complex structure and high cost of the current waste sulfur recovery device.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A waste sulfur recovery device includes a recovery body and a sulfur melting tank arranged inside the recovery body. The recovery body is provided with a steam inlet and a steam outlet, both of which are located outside the sulfur melting tank. The top of the sulfur melting tank is provided with a feeding port, and a sulfur liquid pipe is arranged at the bottom of the sulfur melting tank. One end of the sulfur liquid pipe is communicated with the sulfur melting tank, and the other end of the sulfur liquid pipe passes through the recovery body and extends to the outside of the recovery body.

[0008] Further defined, a filter screen is arranged inside the sulfur melting tank, and the sulfur liquid pipe is located below the filter screen.

[0009] Further defined, the filter screen is of a cylindrical structure, and the top of the filter screen is communicated with the feeding port.

[0010] Further defined, the recovery body, the sulfur melting tank, and the filter screen are all coaxially arranged.

[0011] Further defined, the steam inlet is located at the upper end of the recovery body, the steam outlet is located at the lower end of the recovery body, and the steam outlet is located below the filter screen.

[0012] Further defined, a charging cover is provided at the top of the sulfur melting tank, and the charging cover is connected to the charging port of the sulfur melting tank.

[0013] Further defined, a sulfur liquid switch valve is provided on the sulfur liquid pipe, the sulfur liquid switch valve is located outside the recovery body, and a condensate control valve is provided on the steam outlet.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. The present utility model uses the sulfur melting tank to hold and contain waste sulfur, and then uses the steam inside the recovery body to heat and melt the waste sulfur inside the sulfur melting tank, so that the waste sulfur can be transformed from a solid into a liquid, which is convenient for subsequent filtration of impurities. Therefore, the overall structure is simple, convenient for maintenance, low in cost, ensuring the recovery of waste sulfur while reducing the recovery cost and meeting the actual use requirements.

[0016] 2. The present utility model realizes the filtration of impurities through the filter screen in the sulfur melting tank after melting the solid waste sulfur. On the one hand, it improves the recovery efficiency, and on the other hand, it can collect the solid waste sulfur to avoid flowing out when it is not fully liquefied, thus ensuring the more reliable recovery of waste sulfur and meeting the actual use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] In the figure: 1 - recovery body; 2 - sulfur melting tank; 3 - steam inlet; 4 - steam outlet; 5 - sulfur liquid pipe; 6 - filter screen; 7 - sulfur liquid switch valve; 8 - condensate control valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Embodiment 1

[0021] Reference Figure 1, this embodiment provides a waste sulfur recovery device, including a recovery body 1 and a sulfur melting tank 2. Among them, the recovery body 1 is sleeved outside the sulfur melting tank 2. The sulfur melting tank 2 is used to hold waste sulfur. The inside of the recovery body 1 is filled with high-temperature steam. By sleeving the recovery body 1 outside the sulfur melting tank 2, the waste sulfur in the sulfur melting tank 2 can be heated to melt it into a liquid state, and then the obtained liquid waste sulfur can be filtered to achieve the recovery of sulfur.

[0022] A device support is arranged at the bottom of the recovery body 1 to support the recovery body 1.

[0023] Specifically, a feed inlet is opened at the top of the sulfur melting tank 2 for adding waste sulfur into the sulfur melting tank 2. The feed inlet of the sulfur melting tank 2 is located at the top of the recovery body 1. To ensure the sealing of the steam inside the recovery body 1 and avoid steam leakage, the sulfur melting tank 2 is selected to be hermetically connected to the top of the recovery body 1, thereby improving the heating efficiency.

[0024] At the same time, the feed inlet of the sulfur melting tank 2 needs to be closed when heating and melting the waste sulfur. It is selected to set a feed cover at the top of the sulfur melting tank 2. The feed cover is connected to the feed inlet to avoid heat exchange with the outside and reduce the heating efficiency.

[0025] Further explanation, a steam inlet 3 and a steam outlet 4 are opened on the recovery body 1. The steam inlet 3 and the steam outlet 4 are located outside the sulfur melting tank 2. The steam can be selected as water vapor. Saturated steam of 0.5 MPa or 1.0 MPa is introduced into the recovery body 1 to heat the solid waste sulfur in the sulfur melting tank 2, and the temperature exceeds the melting point of sulfur. For example, a temperature of 120 °C or higher can be selected. The water vapor generated during the factory operation can be used to improve the energy utilization rate and avoid energy waste.

[0026] During actual use, the steam flows in from the steam inlet 3, and after passing through the sulfur melting tank 2, heat transfer occurs with the waste sulfur inside the sulfur melting tank 2, so that the waste sulfur inside the sulfur melting tank 2 melts. The steam that has completed heat transfer finally exits through the steam outlet 4.

[0027] Since the steam will condense into a liquid after completing heat exchange, the steam inlet 3 is selected to be installed at the upper end of the recovery body 1, and the steam outlet 4 is installed at the lower end of the recovery body 1, which is convenient for recovering the condensed steam. At the same time, due to the low density of the steam, the steam continuously enters the recovery body 1 from the upper steam inlet 3, and then the steam is slowly pushed downward, thereby improving the full heating of the waste sulfur, increasing the heating efficiency of the waste sulfur, reducing the melting time, and improving the work efficiency.

[0028] At this time, a condensate control valve 8 can be selected to be installed on the steam outlet 4, and the discharge of the steam condensate is controlled through the condensate control valve 8 during use.

[0029] Furthermore, after all the waste sulfur in the sulfur melting tank 2 is melted, it is necessary to discharge the liquid sulfur containing impurities to facilitate subsequent processing. Therefore, a sulfur liquid pipe 5 is provided at the bottom of the sulfur melting tank 2. One end of the sulfur liquid pipe 5 is connected to the bottom end of the sulfur melting tank 2, and the other end of the sulfur liquid pipe 5 passes through the side wall of the recovery body 1 and extends to the outside of the recovery body 1. At the same time, a sulfur liquid switch valve 7 is installed on the sulfur liquid pipe 5 to facilitate the discharge of the melted waste sulfur and prevent the incomplete melting of the waste sulfur from flowing out.

[0030] Working process:

[0031] In actual use, first, high-temperature steam is introduced into the recovery body 1 through the steam inlet 3 to preheat the sulfur melting tank 2, and at the same time, the steam outlet 4 is kept open; then the sulfur liquid switch valve 7 is closed, and the feeding port of the sulfur melting tank 2 is opened, and waste sulfur is added to the sulfur melting tank 2 and the feeding port is sealed, waiting for the waste sulfur to melt.

[0032] After the waste sulfur is melted, the sulfur liquid switch valve 7 is opened again to discharge the melted waste sulfur, which is convenient for subsequent impurity filtration treatment, thereby reducing the cost of waste sulfur recovery and meeting the actual recovery requirements.

[0033] Embodiment 2

[0034] Different from Embodiment 1, the waste sulfur recovery device provided in this embodiment further includes a filter screen 6, and the filter screen 6 is arranged inside the sulfur melting tank 2, that is, the sulfur melting tank 2 is sleeved outside the filter screen 6.

[0035] The filter screen 6 can be selected to be arranged in a plate-like structure at the lower end of the sulfur melting tank 2. At this time, the filter screen 6 and the bottom of the sulfur melting tank 2 can be selected to be detachably connected. The cross-sectional shapes of the filter screen 6 and the sulfur melting tank 2 are the same, and the filter screen 6 is located above the sulfur liquid pipe 5.

[0036] The filter screen 6 can also be selected to be in a cylindrical structure. The top opening of the filter screen 6 is connected to the feeding port, so that the loaded waste sulfur can first be accommodated in the filter screen 6. The bottom of the filter screen 6 is located above the sulfur liquid pipe 5, so that the impurities contained in the melted waste sulfur can be filtered by the filter screen 6, thereby realizing the recovery of waste sulfur.

[0037] Among them, the filter screen 6 is preferably coaxially arranged with the sulfur melting tank 2 and the recovery body 1 respectively, and at the same time, the sulfur melting tank 2 and the recovery body 1 are also coaxially arranged.

[0038] The material of the filter screen 6 can be selected as S316L stainless steel, and the pore diameter can be selected as 0.075 mm, about 200 meshes, for filtering impurities such as carbon slag, aluminosilicate insulation cotton and stones in waste sulfur.

[0039] During actual operation, it is possible to choose to keep the sulfur liquid switch valve 7 open. After heating the waste sulfur in the filter screen 6, the melted sulfur passes through the filter screen 6 and falls to the bottom of the sulfur melting tank 2 and is discharged through the sulfur liquid pipe 5. After the waste sulfur is completely melted, the impurities on the filter screen 6 are cleaned to facilitate subsequent recycling operations and further improve the recycling efficiency of waste sulfur.

[0040] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0041] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0042] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waste sulfur recovery device, characterized in that, It includes a recovery body (1) and a sulfur melting tank (2) arranged inside the recovery body (1). A steam inlet (3) and a steam outlet (4) are provided on the recovery body (1). Both the steam inlet (3) and the steam outlet (4) are located outside the sulfur melting tank (2). A feeding port is provided at the top of the sulfur melting tank (2), and a sulfur liquid pipe (5) is arranged at the bottom of the sulfur melting tank (2). One end of the sulfur liquid pipe (5) is communicated with the sulfur melting tank (2), and the other end of the sulfur liquid pipe (5) passes through the recovery body (1) and extends to the outside of the recovery body (1).

2. The waste sulfur recovery device according to claim 1, wherein, A filter screen (6) is arranged inside the sulfur melting tank (2), and the sulfur liquid pipe (5) is located below the filter screen (6).

3. The waste sulfur recovery device according to claim 2, characterized in that, The filter screen (6) is of a cylindrical structure, and the top of the filter screen (6) is communicated with the feeding port.

4. The waste sulfur recovery device according to claim 3, characterized in that, The recovery body (1), the sulfur melting tank (2) and the filter screen (6) are all coaxially arranged.

5. The waste sulfur recovery device according to claim 3, characterized in that, The steam inlet (3) is located at the upper end of the recovery body (1), the steam outlet (4) is located at the lower end of the recovery body (1), and the steam outlet (4) is located below the filter screen (6).

6. The waste sulfur recovery device according to claim 5, characterized in that, A feeding cover is arranged at the top of the sulfur melting tank (2), and the feeding cover is connected to the feeding port of the sulfur melting tank (2).

7. The waste sulfur recovery device according to claim 5, characterized in that, A sulfur liquid switch valve (7) is arranged on the sulfur liquid pipe (5), the sulfur liquid switch valve (7) is located outside the recovery body (1), and a condensate control valve (8) is arranged on the steam outlet (4).

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