High-temperature sulfur filter and sulfur production system

Abstract

The utility model provides a high-temperature sulfur filtering machine and a sulfur production system, and relates to the field of filtering equipment. The high-temperature sulfur filter comprises a barrel and a top cover arranged on the barrel, the barrel and the top cover are connected in a flange mode, the barrel comprises a cylindrical part and a conical part arranged below the cylindrical part, an impurity discharge port is formed in the conical part, and a feeding port is formed in the cylindrical part; a filter rod is arranged in the barrel body, one end, penetrating out of the top cover, of the top end of the filter rod is provided with a bent pipe, one end of the bent pipe is connected with an outlet pipe through a first flange, the filter rod is further sleeved with a second flange, and the top cover is provided with a third flange which can be connected with the second flange in a paired mode. The high-temperature sulfur filter can prevent air holes of the filter rods from being blocked due to repeated flow in the filter, and is convenient to replace the filter screen, maintain and clean the interior of the barrel.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, and more specifically, to a high-temperature sulfur filter and a sulfur production system. Background Technology

[0002] Currently, the filters used in the filtration equipment for insoluble sulfur in the sulfur melting process are generally flat-bottomed cylindrical structures with covers, made of 2520 stainless steel, with a flat bottom and the top of the filter structure extending out of the top cover and connecting to the outlet pipe.

[0003] 1. In the sulfur melting process, the operating temperature of insoluble sulfur is around 550-600℃. High-temperature sulfur mixed with certain impurities (such as water vapor) is highly corrosive. Pipes will peel off and form a large amount of iron filings under its corrosion. Therefore, high-temperature sulfur must be filtered. The bottom of the filter uses a flat plate, which has poor settling effect. The iron filings that are filtered and settled will remain on the surface of the flat plate during the settling process and cannot be completely discharged from the bottom slag discharge port. They will continue to flow inside the filter with the high-temperature sulfur gas flow and block the filter holes of the filter structure.

[0004] 2. The operating temperature and working pressure of the insoluble sulfur melting process are relatively high. The high-temperature sulfur outlet of the filter top cover is connected to the cylinder by a flange, which is large and very heavy. When inspecting and maintaining the filter and replacing the filter rod, multiple people are required to disassemble the flange between the top cover and the cylinder in order to remove the filter rod. Disassembly is difficult and maintenance is challenging.

[0005] 3. The high-temperature sulfur outlet is connected to the filter rod inside the filter with threaded connections. Because there are gaps at the threaded connections, it is very easy for materials and iron filings to adhere, resulting in impurities in the high-temperature sulfur being mixed in.

[0006] Therefore, this application is hereby submitted. Utility Model Content

[0007] The purpose of this utility model is to provide a high-temperature sulfur filter and a sulfur production system, which can accelerate the removal of impurities, reduce the problem of filter hole blockage caused by impurity accumulation, and reduce the difficulty of inspection and maintenance of the high-temperature filter. It can be operated by a single person to complete the inspection and maintenance of the high-temperature filter and the replacement of the filter screen.

[0008] The embodiments of this utility model can be implemented as follows:

[0009] In a first aspect, this utility model provides a high-temperature sulfur filter, including a cylinder and a top cover disposed on the cylinder. The cylinder includes a cylindrical part and a conical part disposed below the cylindrical part. An impurity discharge port is provided on the conical part, and a feed inlet is provided on the cylindrical part.

[0010] The cylinder is equipped with a filter rod, and a bend is provided at one end of the filter rod that extends out of the top cover. One end of the bend is connected to an outlet pipe through a first flange. A second flange is also fitted on the filter rod, and a third flange that can be mated and connected to the second flange is provided on the top cover.

[0011] In an optional embodiment, the height ratio of the cylindrical portion to the conical portion is 1:1.8-2.2;

[0012] And / or, the cylinder body and the top cover are connected by a flange;

[0013] And / or, the top cover is also provided with a mounting hole, into which a washing liquid pipe for connecting to the washing liquid storage tank is inserted, and a cleaning ball capable of spraying cleaning liquid and rotating is provided at the bottom end of the washing liquid pipe.

[0014] In an optional embodiment, a feed pipe is connected to the feed inlet, and the feed pipe is arranged along the tangential direction of the cylindrical portion.

[0015] In an optional embodiment, the portion of the filter rod located inside the cylinder is provided with a filtration zone, the filtration zone is provided with through holes, and the surface of the filtration zone is covered with a filter screen.

[0016] In an optional embodiment, the filter screen has two or more layers, and the mesh size of the filter screen gradually increases from the inside to the outside.

[0017] In an optional embodiment, the filter screen has two layers, with the outer filter screen having a mesh size of 8-12 mesh and the inner filter screen having a mesh size of 18-24 mesh.

[0018] And / or, the diameter of the through hole is 3-5 mm.

[0019] In an optional embodiment, the top cover is provided with a sleeve for the filter rod to pass through, and the third flange is provided at the end of the sleeve away from the top cover.

[0020] In an optional embodiment, a baffle is provided longitudinally on the inner wall of the cylinder, and the width of the baffle is 1 / 12 to 1 / 10 of the diameter of the cylinder at that location;

[0021] And / or, a vibrator is provided on the outer wall of the cylinder.

[0022] In an optional embodiment, there are four baffles, which are evenly distributed along the circumference of the cylinder.

[0023] Secondly, this utility model provides a sulfur production system, including the high-temperature sulfur filter described in any of the foregoing embodiments.

[0024] The beneficial effects of the high-temperature sulfur filter and sulfur production system provided by this utility model include:

[0025] The bottom of the cylinder is conical, which facilitates the timely settling and discharge of impurities such as iron filings mixed in the high-temperature sulfur gas flow, preventing repeated flow inside the filter and clogging of the filter rod pores.

[0026] The filter rod and the top cover are connected by a flange. At the same time, a bend is provided between the top of the filter rod and the outlet pipe, and the bend is connected to the outlet pipe by a flange. The operation of disassembling and assembling the filter rod can be completed by a single person, which is convenient for replacing the filter screen and maintenance. The setting of the cleaning ball also facilitates cleaning of the inside of the cylinder. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the high-temperature sulfur filter provided in this embodiment;

[0029] Figure 2 This is a schematic diagram of the connection between the filter rod and the bent tube provided in this embodiment;

[0030] Figure 3 This is a schematic diagram of the structure of the filter rod provided in this embodiment;

[0031] Figure 4 This is a schematic diagram of the top cover provided in this embodiment.

[0032] Icons: 100-Cylinder; 110-Cylindrical section; 120-Conical section; 130-Impurity discharge port; 140-Feed pipe; 150-Baffle; 200-Top cover; 210-Sleeve; 220-Third flange; 230-Washing liquid pipe; 300-Filter rod; 310-Second flange; 320-Through hole; 330-Filter screen; 400-Bend; 410-First flange; 500-Outlet pipe; 600-Vibrator. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0038] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0039] This utility model embodiment provides a high-temperature sulfur filter, such as Figure 1-4 As shown, it includes a cylindrical body 100 and a top cover 200 disposed on the cylindrical body 100. The cylindrical body 100 includes a cylindrical portion 110 and a conical portion 120 disposed below the cylindrical portion 110. The conical portion 120 is provided with an impurity discharge port 130, and the cylindrical portion 110 is provided with a feed port.

[0040] A filter rod 300 is provided inside the cylinder 100. A bend 400 is provided at one end of the filter rod 300 that protrudes from the top cover 200. One end of the bend 400 is connected to an outlet pipe 500 through a first flange 410. A second flange 310 is also sleeved on the filter rod 300. A third flange 220 is provided on the top cover 200 that can be mated and connected with the second flange 310.

[0041] The bottom of the cylinder 100 of the high-temperature sulfur filter provided in this embodiment is conical, which facilitates the timely settling and removal of impurities such as iron filings mixed in the high-temperature sulfur gas flow, and prevents repeated flow inside the filter from causing blockage of the air holes of the filter rod 300.

[0042] In this application, the filter rod 300 is connected to the top cover 200 via a flange. To facilitate disassembly of the filter rod 300 for inspection and replacement of the filter screen 330, a bend 400 is provided between the top of the filter rod 300 and the outlet pipe 500, and the bend 400 is connected to the outlet pipe 500 via a flange. When the equipment needs to be disassembled for inspection and maintenance of the filter rod 300, only the flanges between the bend 400 and the outlet pipe 500 and between the filter rod 300 and the top cover 200 need to be removed to extract the filter rod for inspection and replacement. This eliminates the need to open the top cover 200, allowing a single person to complete the disassembly and assembly of the filter rod, significantly reducing the difficulty of equipment inspection and maintenance. In some embodiments, the filter rod 300 has a nominal diameter (DN) of 50mm, and the flange of the sleeve 210 on the top cover 200 is DN65mm. A matching DN65 flange is welded to the upper end of the filter rod 300 for connection. Therefore, when inspecting and replacing the filter screen 330 of the filter rod 300, it is only necessary to remove the connecting flanges at these two locations to directly remove the filter rod 300 from the cylinder 100 without removing the top cover 200. This can be done by one person, greatly reducing the difficulty of inspection and maintenance.

[0043] Specifically, when the high-temperature sulfur filter in this application is working, the high-temperature sulfur material first enters the cylinder through the feed inlet, and then is filtered through the filter rod. The filtered material enters the interior of the filter rod and is discharged through the bend pipe and the outlet pipe in sequence. The filtered impurities detach from the outer surface of the filter rod and gradually sink to the bottom of the cylinder, and are then discharged from the impurity discharge port.

[0044] In an optional embodiment, the height ratio of the cylindrical portion 110 to the conical portion 120 is 1:1.8-2.2, which is more conducive to improving the separation effect of impurities;

[0045] And / or, the cylinder 100 and the top cover 200 are connected by a flange for easy installation and disassembly;

[0046] And / or, the top cover 200 is also provided with a mounting hole, into which a washing liquid pipe 230 for connecting to the washing liquid storage tank is inserted, and a cleaning ball capable of spraying cleaning liquid and rotating is provided at the bottom end of the washing liquid pipe 230.

[0047] The cleaning balls facilitate the cleaning of materials adhering to the inner wall of the filter during maintenance. An electric vibrator 600 can also be installed at the outer end of the filter to facilitate material shaking and settling. In some embodiments, the cleaning balls can be high-temperature resistant ROT stainless steel 360° rotating cleaning balls, connected to external cleaning fluid storage tanks, pumps, etc., via cleaning fluid pipes 230. During maintenance, high-pressure spraying of cleaning fluid automatically cleans the materials adhering to the inner wall of the filter, ensuring the cleanliness of the filter cylinder's inner wall.

[0048] In an optional embodiment, a feed pipe 140 is connected to the feed port, and the feed pipe 140 is arranged along the tangential direction of the cylindrical portion 110.

[0049] The feed pipe 140 is arranged tangentially to the cylindrical portion 110, allowing the airflow to enter the cylinder 100 tangentially. The high-temperature sulfur gas flow forms a vortex upon entry, creating a cyclone separation effect inside the filter, which improves the separation efficiency. In some embodiments, the feed pipe 140 may be located in the middle of the cylindrical portion 110.

[0050] In an optional embodiment, the portion of the filter rod 300 located inside the cylinder 100 is provided with a filter zone, the filter zone is provided with through holes 320, and the surface of the filter zone is covered with a filter screen 330.

[0051] The filter screen 330 can be made of stainless steel. After filtering for a period of time, the filter screen 330 can be replaced as needed.

[0052] In an optional embodiment, the filter screen 330 has two or more layers, and the mesh size of the filter screen gradually increases from the inside to the outside.

[0053] The mesh size and number of layers of the 330 filter can be selected according to the required filtration effect.

[0054] In an optional embodiment, the filter screen 330 has two layers, with the outer filter screen 330 having a pore size of 8-12 mesh and the inner filter screen 330 having a pore size of 18-24 mesh.

[0055] And / or, the diameter of the through hole 320 is 3-5 mm.

[0056] In this application, due to the improvement of the shape of the cylinder 100 and the air inlet direction, the separation effect of high-temperature sulfur and impurities is greatly improved. Therefore, only two layers of filter screen 330 are required.

[0057] In an optional embodiment, the top cover 200 is provided with a sleeve 210 for the filter rod 300 to pass through, and the third flange 220 is provided at the end of the sleeve 210 away from the top cover 200.

[0058] The presence of sleeve 210 facilitates the installation of the third flange 220 and the installation and cooperation between the third flange 220 and the second flange 310. On the other hand, it can be used to support the filter rod 300, disperse the force at the contact point between the filter rod 300 and the top cover 200, and help keep the filter rod 300 set in a vertical direction.

[0059] In an optional embodiment, a baffle 150 is provided longitudinally on the inner wall of the cylinder 100, and the width of the baffle 150 is 1 / 12 to 1 / 10 of the diameter of the cylinder 100 at that location.

[0060] The baffle 150 can be evenly arranged in four pieces along the inner wall of the cylinder 100. The baffle 150 can be a flat steel or stainless steel plate of about 4mm. The baffle 150 can be welded to the inner wall of the equipment, which can change the tangential flow of the material at the lower end into axial and radial flow, while increasing the turbulence of high temperature sulfur and increasing the residence time of high temperature sulfur in the equipment, thereby improving the filtration effect.

[0061] In an optional embodiment, a vibrator 600 is provided on the outer wall of the cylinder 100.

[0062] The vibrator 600 can be an electric vibrator with a timing function, which periodically vibrates and strikes the outer wall of the filter during operation, making it easier for materials to fall and settle, reducing the adhesion of materials to the inner wall of the filter, making cleaning easier, reducing corrosion, and extending the service life of the equipment.

[0063] In an optional embodiment, there are four baffles 150, which are evenly distributed along the circumference of the cylinder 100.

[0064] This utility model also provides a sulfur production system, including the high-temperature sulfur filter described in any of the foregoing embodiments.

[0065] The above description is only a specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-temperature sulfur filter, characterized in that, The device includes a cylindrical body and a top cover disposed on the cylindrical body. The cylindrical body includes a cylindrical portion and a conical portion disposed below the cylindrical portion. An impurity discharge port is disposed on the conical portion, and a feed inlet is disposed on the cylindrical portion. The cylinder is equipped with a filter rod, and a bend is provided at one end of the filter rod that extends out of the top cover. One end of the bend is connected to an outlet pipe through a first flange. A second flange is also fitted on the filter rod, and a third flange that can be mated and connected to the second flange is provided on the top cover.

2. The high-temperature sulfur filter according to claim 1, characterized in that, The height ratio of the cylindrical portion to the conical portion is 1:1.8-2.2; And / or, the cylinder body and the top cover are connected by a flange; And / or, the top cover is also provided with a mounting hole, into which a washing liquid pipe for connecting to the washing liquid storage tank is inserted, and a cleaning ball capable of spraying cleaning liquid and rotating is provided at the bottom end of the washing liquid pipe.

3. The high-temperature sulfur filter according to claim 1, characterized in that, A feed pipe is connected to the feed inlet, and the feed pipe is arranged along the tangential direction of the cylindrical part.

4. The high-temperature sulfur filter according to claim 1, characterized in that, The portion of the filter rod located inside the cylinder has a filtration zone, the filtration zone has through holes, and the surface of the filtration zone is covered with a filter screen.

5. The high-temperature sulfur filter according to claim 4, characterized in that, The filter screen has two or more layers, and the mesh size gradually increases from the inside to the outside.

6. The high-temperature sulfur filter according to claim 5, characterized in that, The filter screen has two layers. The outer filter screen has a mesh size of 8-12, and the inner filter screen has a mesh size of 18-24. And / or, the diameter of the through hole is 3-5 mm.

7. The high-temperature sulfur filter according to claim 1, characterized in that, The top cover is provided with a sleeve for the filter rod to pass through, and the third flange is located at the end of the sleeve away from the top cover.

8. The high-temperature sulfur filter according to claim 1, characterized in that, A baffle is provided on the inner wall of the cylinder along the longitudinal direction, and the width of the baffle is 1 / 12 to 1 / 10 of the diameter of the cylinder at that location. And / or, a vibrator is provided on the outer wall of the cylinder.

9. The high-temperature sulfur filter according to claim 8, characterized in that, There are four baffles, which are evenly distributed along the circumference of the cylinder.

10. A sulfur production system, characterized in that, Including the high-temperature sulfur filter as described in any one of claims 1-9.

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