Open type sulfur sludge melting device
By designing an open sulfur melting sludge device and using heating and feed control technology, the problem of environmental pollution after sulfur sludge treatment in coking plants is solved, and a green and environmentally friendly and convenient promotion treatment effect is achieved.
Patent Information
- Application Number
- CN202421994292.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The sulfur sludge slag produced in the desulfurization system of the coking plant is then filtration and dehydrated, and is stacked and stored, dried and weathered, resulting in environmental pollution.
An open-type sulfur mud slag device is designed, including a main heating coil, an auxiliary heating coil, a heating sleeve and a gravity feed valve, which realizes the melting and processing of sulfur mud slag through heating and feed control.
It effectively solves the problem of environmental pollution after the accumulation and storage of sulfur sludge slag, realizes green and environmentally friendly sulfur sludge slag treatment, and is easy to promote and use.
Smart Images
Figure CN222918644U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of extracting elemental sulfur, and more specifically, the utility model relates to a device for open melting of sulfur mud and slag. Background Art
[0002] Due to environmental protection requirements, coking plants have installed wet desulfurization systems to remove hydrogen sulfide in gas in the desulfurization tower. The liquid after removing hydrogen sulfide is sent to the regeneration tower to contact with air, and elemental sulfur is generated under the catalysis of desulfurization catalyst and suspended in the upper part of the regeneration tower and then flows to the foam tank. At present, all coking plants adopt the continuous sulfur melting method, and the foam sulfur in the foam tank is pumped into the sulfur melting kettle by a foam pump for sulfur melting treatment. After the foam sulfur is heated, the foam splits, and the formed elemental sulfur sinks and accumulates at the bottom of the sulfur melting kettle and flows out of the sulfur melting kettle through the discharge port. The formed clear liquid rises to the upper part of the sulfur melting kettle and then flows out through the drain port at the upper part of the sulfur melting kettle and then flows back into the desulfurization system for processing. Because the temperature of the drain port is too high, a large amount of by-products are generated. Production practice has proved that when the temperature of the desulfurization liquid exceeds 50 °C, the content of by-products will increase exponentially. Now the outlet temperature is above 90 °C, and the content of by-products entering the system increases too fast, resulting in disadvantages such as equipment corrosion, poor desulfurization efficiency, and poor regeneration of sulfur foam in the regeneration tower. Furthermore, a large amount of sulfur mud and slag accumulates at the bottom of the desulfurization system tower and tank. Now, after the coking plant uses a filter press or centrifuge to filter and dehydrate the produced sulfur mud and slag, it is stacked and stored, and further pollutes the environment after drying and weathering.
[0003] Therefore, there is an urgent need for a device for open melting of sulfur mud and slag to solve the above problems. Summary of the Utility Model
[0004] In order to overcome the above-mentioned defects of the prior art, the embodiment of the utility model provides a device for open melting of sulfur mud and slag. By providing structures such as a main heating coil, an auxiliary heating coil, a heating jacket, and a gravity feed valve, the utility model can solve the problem that after the coking plant uses a filter press or centrifuge to filter and dehydrate the produced sulfur mud and slag, it is easy to pollute the environment after stacking, storing, drying, and weathering. The utility model has good use effect, is green and environmentally friendly, and is convenient for popularization and use, so as to solve the problems raised in the above background art.
[0005] To achieve the above object, the utility model provides the following technical solution: A device for open melting of sulfur mud and slag, including a kettle body, a feed inlet is arranged at the top of the kettle body, a gravity feed valve is arranged inside the feed inlet, a heating jacket is arranged outside the bottom of the kettle body, a main heating coil and an auxiliary heating coil are respectively and fixedly installed on both sides inside the kettle body, an air inlet pipe is arranged on one side of the top of the kettle body, a liquid outlet pipe is arranged on one side of the bottom of the kettle body, a discharge pipe is arranged at the bottom of the kettle body, and a thermometer and a pressure gauge are fixedly installed at both the top and the bottom of the kettle body;
[0006] The gravity feed valve includes two valve flaps, and a fixed shaft is arranged between the two valve flaps.
[0007] In a preferred embodiment, the intake pipe is communicated with the kettle body.
[0008] In a preferred embodiment, the intake pipe penetrates through the heating jacket and extends to the outside of the heating jacket.
[0009] In a preferred embodiment, the liquid outlet pipe is communicated with the kettle body.
[0010] In a preferred embodiment, the liquid outlet pipe penetrates through the heating jacket and extends to the outside of the heating jacket.
[0011] In a preferred embodiment, both the main heating coil and the auxiliary heating coil are made of 316L stainless steel metal material.
[0012] The technical effects and advantages of the present utility model:
[0013] By providing structures such as a main heating coil, an auxiliary heating coil, a heating jacket, and a gravity feed valve, the present utility model can solve the problem that after the coking plant uses a filter press or a centrifuge to filter and dehydrate the produced sulfur sludge, it is easy to pollute the environment after being stacked and stored and dried and weathered. The use effect of the present utility model is good, it is green and environmentally friendly, and it is convenient for popularization and use. Description of the Drawings
[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.
[0015] Figure 2 It is a schematic diagram of the cross-sectional structure of the feeding port of the present utility model when viewed from above.
[0016] The reference numerals are: 1, intake pipe; 2, liquid outlet pipe; 3, main heating coil; 4, auxiliary heating coil; 5, discharge pipe; 6, feeding port; 7, heating jacket; 8, kettle body; 9, valve flap; 10, fixed shaft. Detailed Embodiments
[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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 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.
[0018] As shown in the attached Figure 1-2As shown in the figure, the utility model provides a device for open melting of sulfur mud and slag, which includes a kettle body 8. A feed inlet 6 is arranged at the top of the kettle body 8, and a gravity feed valve is arranged inside the feed inlet 6. A heating jacket 7 is arranged on the outer side of the bottom of the kettle body 8. Main heating coils 3 and auxiliary heating coils 4 are fixedly installed on both sides inside the kettle body 8 respectively. An air inlet pipe 1 is arranged on one side of the top of the kettle body 8, a liquid outlet pipe 2 is arranged on one side of the bottom of the kettle body 8, and a discharge pipe 5 is arranged at the bottom of the kettle body 8. Thermometers and pressure gauges are fixedly installed at both the top and the bottom of the kettle body 8;
[0019] The gravity feed valve includes two valve flaps 9, and a fixed shaft 10 is arranged between the two valve flaps 9.
[0020] The air inlet pipe 1 is communicated with the kettle body 8.
[0021] The air inlet pipe 1 penetrates through the heating jacket 7 and extends to the outside of the heating jacket 7.
[0022] The liquid outlet pipe 2 is communicated with the kettle body 8.
[0023] The liquid outlet pipe 2 penetrates through the heating jacket 7 and extends to the outside of the heating jacket 7.
[0024] Both the main heating coils 3 and the auxiliary heating coils 4 are made of 316L stainless steel metal material.
[0025] The specific implementation method is as follows: When using the utility model, if sulfur melting is to be carried out, the pressure-filtered and dewatered sulfur slag is loaded from the feed inlet 6, enters the kettle 8 through the gravity feed valve, and is closed by relying on the self-gravity of the valve flap 9 through the valve flap 9 and the fixed shaft 10 to prevent backflow. After the feeding is completed, the gravity feed valve automatically returns to the closed state due to the loss of additional gravity. Whether to heat the heating jacket is determined according to the actual situation. The sulfur slag at the heating jacket 7, the main heating coils 3 and the auxiliary heating coils 4 is heated to 130 °C. The molten elemental sulfur sinks and accumulates at the bottom of the sulfur melting kettle body 8 and is discharged through the discharge pipe 5. The thermometers and pressure gauges are used to detect the temperature and pressure at the upper and lower parts of the kettle body 8. This enables the utility model to solve the problem that after the coking plant uses a filter press or a centrifuge to carry out pressure filtration and dehydration treatment on the produced sulfur mud and slag, it is easy to pollute the environment after stacking and storing and drying and weathering. The use effect of the utility model is good, it is green and environmentally friendly, and it is convenient to promote and use.
[0026] The working principle of the utility model:
[0027] Refer to the attached drawings of the specification Figure 1-2, when using the present utility model, with structures such as the main heating coil 3, the auxiliary heating coil 4, the heating jacket 7, and the gravity feed valve, etc., the present utility model can solve the problem that after the coking plant uses a filter press or a centrifuge to filter and dehydrate the produced sulfur sludge, it is easy to pollute the environment after being stacked, stored, dried, and weathered. This makes the use effect of the present utility model better, environmentally friendly, and convenient for popularization and use.
[0028] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. It can be a mechanical connection or an electrical connection, or it can be the internal communication of two components. It can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;
[0029] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;
[0030] Finally: The above description is only the preferred embodiment of the present utility model and is not used to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. An open sulfur sludge melting device, comprising a kettle (8), characterized in that: The top of the kettle (8) is provided with a feed port (6), a gravity feed valve is provided inside the feed port (6), a heating jacket (7) is provided on the outside of the bottom of the kettle (8), a main heating coil (3) and an auxiliary heating coil (4) are fixedly installed on both sides of the inside of the kettle (8), an air inlet pipe (1) is provided on one side of the top of the kettle (8), a liquid outlet pipe (2) is provided on one side of the bottom of the kettle (8), a discharge pipe (5) is provided at the bottom of the kettle (8), and a thermometer and a pressure gauge are fixedly installed on the top and bottom of the kettle (8); The gravity feed valve comprises two valve flaps (9), with a fixed shaft (10) arranged between the two valve flaps (9).
2. The open sulfur sludge melting device according to claim 1 is characterized in that: The air inlet pipe (1) is in communication with the kettle body (8).
3. The open sulfur sludge melting device according to claim 1 is characterized in that: The air inlet pipe (1) passes through the heating sleeve (7) and extends to the outside of the heating sleeve (7).
4. The open sulfur sludge melting device according to claim 1 is characterized in that: The liquid outlet pipe (2) is in communication with the kettle body (8).
5. The open sulfur sludge melting device according to claim 1 is characterized in that: The liquid outlet pipe (2) passes through the heating jacket (7) and extends to the outside of the heating jacket (7).
6. The open sulfur sludge melting device according to claim 1 is characterized in that: The main heating coil (3) and the auxiliary heating coil (4) are both made of 316L stainless steel metal material.