Integrated equipment for fine desulfurization of blast furnace gas
By designing detachable insert filter plates and a multi-stage filtration structure, the problem of inconvenient filter plate replacement was solved, achieving efficient blast furnace gas filtration and reducing equipment corrosion, thereby lowering desulfurization costs and environmental pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-27
AI Technical Summary
In existing integrated desulfurization equipment for blast furnace gas, the filter plates are fixedly installed inside the reactor, which makes them inconvenient to clean and replace, resulting in poor filtration and affecting the desulfurization effect. At the same time, carbonyl sulfur corrodes the equipment and increases the desulfurization cost.
A detachable insert filter plate structure was designed. The filter plate can be detached and installed by inserting an arc plate and a through arc hole. Stable sealing is achieved by combining a fixed insert rod and a sealing gasket. Multi-stage filter plates are set in the reactor body to improve the filtration effect.
It enables rapid replacement and stable sealing of filter plates, improves the filtration effect of blast furnace gas, reduces equipment corrosion and desulfurization costs, and reduces environmental pollution.
Smart Images
Figure CN224047301U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a high furnace gas fine desulfurization technology equipment field, and specifically relates to a high furnace gas fine desulfurization integrated equipment. BACKGROUND
[0002] The carbonyl sulfur in high furnace gas accounts for 60-70% of the total organic sulfur, and the carbonyl sulfur has strong corrosivity, can easily cause corrosion to equipment, reduces the service life of equipment, and also can cause poisoning of downstream desulfurization catalyst, reduces activity, increases desulfurization cost, produces SO2 after combustion of carbonyl sulfur, and forms acid rain after being discharged into the atmosphere, causes environmental pollution, threatens human health, and does not meet the requirements of the state environmental protection.
[0003] Therefore, in order to solve the above problems, the existing integrated equipment for high furnace gas fine desulfurization, which usually includes a kettle body, a dehydrator, a filter plate, a transverse partition plate, an umbrella-shaped cap, a pressure equalization flow pipe and a spraying device, etc., can convert organic sulfur carbonyl sulfur (COS) into inorganic sulfur after high furnace gas passes through the equipment, and reduce the pollution of sulfur to the atmospheric environment. The filter plate arranged above the gas inlet of the high furnace gas can preliminarily filter out impurities in the high furnace gas, and the filter plate needs to be cleaned or replaced with a new filter plate after being used for a period of time. However, the filter plate is fixedly arranged in the kettle body, and it is inconvenient to clean the filter plate or replace the new filter plate. If the filter plate is not replaced for a long time, the filtering effect will be poor, and the fine desulfurization effect of the kettle body on the high furnace gas will be affected. SUMMARY
[0004] The utility model aims at providing a high furnace gas fine desulfurization integrated equipment, which can convert carbonyl sulfur into inorganic sulfur and also can quickly replace and clean the filter plate.
[0005] In order to solve the above technical problems, the utility model adopts the specific scheme of a high furnace gas fine desulfurization integrated equipment, which comprises a kettle body, the top of the kettle body is provided with a gas outlet, the bottom of the kettle body is provided with a liquid outlet, the side wall of the liquid outlet is provided with a gas inlet, and the kettle body is characterized in that: a plug-in filter plate is detachably arranged on the kettle body, the plug-in filter plate is provided with a plug-in arc plate on the outer side wall of the 180° half ring thereof, the plug-in arc plate is arranged with the plug-in filter plate as the same center, and the upper end face and the lower end face of the plug-in arc plate protruding from the plug-in filter plate form outer side abutting plates, respectively.
[0006] A replacement clamping groove is formed in the half ring of the outer side wall of the kettle body, a through arc hole is formed in the inner side wall of the kettle body and located at the middle of the inner side wall of the kettle body where the replacement clamping groove is arranged and extends in the circumferential direction, the through arc hole is used for horizontally inserting the plug-in filter plate into the kettle body, and inner abutting steps are respectively formed between the inner side wall of the through arc hole and the replacement clamping groove on the two sides of the through arc hole, and the inner abutting steps are used for abutting and clamping cooperation with the outer side abutting plates to seal the kettle body.
[0007] As another optimization scheme of the above-mentioned one kind of blast furnace gas fine desulfurization integrated equipment: the arc-shaped resisting block is arranged on the outer side wall of the half ring opposite to the arc plate, the accommodating arc groove is arranged on the inner side wall of the kettle body for sliding and penetrating the arc-shaped resisting block, the accommodating arc groove is communicated with the through arc hole and the replacement clamping groove, and the width of the accommodating arc groove is greater than the width of the inner resisting step.
[0008] As another optimization scheme of the above-mentioned one kind of blast furnace gas fine desulfurization integrated equipment: the arc-shaped resisting block is arranged on the outer side wall of the half ring opposite to the arc plate, the accommodating arc groove is arranged on the inner side wall of the kettle body for sliding and penetrating the arc-shaped resisting block, the accommodating arc groove is communicated with the through arc hole and the replacement clamping groove, and the width of the accommodating arc groove is greater than the width of the inner resisting step.
[0009] As another optimization scheme of the above-mentioned one kind of blast furnace gas fine desulfurization integrated equipment: the arc-shaped resisting block is arranged on the outer side wall of the half ring opposite to the arc plate, the accommodating arc groove is arranged on the inner side wall of the kettle body for sliding and penetrating the arc-shaped resisting block, the accommodating arc groove is communicated with the through arc hole and the replacement clamping groove, and the width of the accommodating arc groove is greater than the width of the inner resisting step.
[0010] As another optimization scheme of the above-mentioned one kind of blast furnace gas fine desulfurization integrated equipment: the arc-shaped resisting block is arranged on the outer side wall of the half ring opposite to the arc plate, the accommodating arc groove is arranged on the inner side wall of the kettle body for sliding and penetrating the arc-shaped resisting block, the accommodating arc groove is communicated with the through arc hole and the replacement clamping groove, and the width of the accommodating arc groove is greater than the width of the inner resisting step.
[0011] As another optimization scheme of the above-mentioned one kind of blast furnace gas fine desulfurization integrated equipment: the arc-shaped resisting block is arranged on the outer side wall of the half ring opposite to the arc plate, the accommodating arc groove is arranged on the inner side wall of the kettle body for sliding and penetrating the arc-shaped resisting block, the accommodating arc groove is communicated with the through arc hole and the replacement clamping groove, and the width of the accommodating arc groove is greater than the width of the inner resisting step.
[0012] As another optimization scheme of the above-mentioned one kind of blast furnace gas fine desulfurization integrated equipment: the arc-shaped resisting block is arranged on the outer side wall of the half ring opposite to the arc plate, the accommodating arc groove is arranged on the inner side wall of the kettle body for sliding and penetrating the arc-shaped resisting block, the accommodating arc groove is communicated with the through arc hole and the replacement clamping groove, and the width of the accommodating arc groove is greater than the width of the inner resisting step.
[0013] As another optimization scheme of the above-mentioned one kind of blast furnace gas fine desulfurization integrated equipment: the arc-shaped resisting block is arranged on the outer side wall of the half ring opposite to the arc plate, the accommodating arc groove is arranged on the inner side wall of the kettle body for sliding and penetrating the arc-shaped resisting block, the accommodating arc groove is communicated with the through arc hole and the replacement clamping groove, and the width of the accommodating arc groove is greater than the width of the inner resisting step.
[0014] Compared with the prior art, the present application has the following beneficial effects:
[0015] 1. The utility model discloses a plug-in filter plate can be detachably installed on the kettle body through the replacement clamping groove and the through arc hole set on the kettle body, and the through arc hole is arranged along the half ring of the inner side wall of the kettle body. One inner abutting step is formed on the kettle body on the two sides of the replacement clamping groove and the through arc hole. The plug-in arc plate is arranged on the plug-in filter plate along the outer side wall of the half ring, and the plug-in arc plate can be clamped and matched with the replacement clamping groove when the plug-in filter plate is inserted into the kettle body through the through arc hole. The outer side bottom plate protruding from the upper end surface and the lower end surface of the plug-in filter plate can be abutted and matched with the corresponding inner abutting step, so that the plug-in filter plate can be detachably installed on the kettle body, the filter plate is convenient to replace, and the problem that the filtering effect on the blast furnace gas is affected due to the long-time non-replacement of the filter plate is avoided.
[0016] 2. The utility model discloses a L-shaped fixed insertion rod which can be inserted into three fixing rings arranged along the axial direction of the kettle body in sequence. The fixed insertion rod is inserted into the uppermost fixing ring and then is pulled out from the lowermost fixing ring. When the fixed insertion rod passes through the fixing ring on the plug-in arc plate, the inner side wall of the plug-in arc plate and the sealing gasket arranged on the inner abutting step can be tightly abutted and matched, so that the plug-in filter plate is stably and tightly plugged into the kettle body, and the blast furnace gas is prevented from leaking out.
[0017] 3. The utility model discloses a lower filter plate arranged below the plug-in filter plate in the kettle body. The lower filter plate can be placed on the fixed circular table arranged on the corresponding inner side wall of the kettle body. An upper filter plate is arranged above the plug-in filter plate on the kettle body. The upper filter plate can be inserted into and rotated to be clamped in the L-shaped clamping groove arranged on the inner side wall of the kettle body through the clamping protrusions arranged on the outer side walls on the two sides of the upper filter plate. The filter hole diameter of the upper filter plate is smaller than the filter hole diameter of the plug-in filter plate and the filter hole diameter of the lower filter plate. The upper filter plate, the plug-in filter plate and the lower filter plate form a three-stage filtering for the blast furnace gas, and the filtering effect on the impurities in the blast furnace gas is improved. ACCURACY
[0018] Figure 1 Fig. 1 is a structure schematic view of the replacement clamping groove and the through arc hole arranged on the kettle body, and Fig. 2 is a structure schematic view of the plug-in filter plate.
[0019] Figure 2 Fig. 3 is a structure schematic view of the fixed insertion rod passing through the fixing ring to fix the plug-in filter plate on the kettle body.
[0020] Figure 3 Fig. 4 is a partial enlarged structure schematic view of the replacement clamping groove part arranged on the outer side wall close to the bottom of the kettle body, and Fig. 5 is a A-A cross-sectional structure schematic view of Fig. 4.
[0021] Figure 4 Fig. 6 is a structure schematic view of the upper filter plate.
[0022] Figure 5This is a schematic diagram of the lower filter plate.
[0023] Reference numerals: 1. Vessel body; 101. Air outlet; 102. Air inlet; 103. Liquid outlet; 104. Support column; 2. Replacement slot; 3. Inner step; 4. Through arc hole; 5. Fixing ring; 6. Receiving arc groove; 601. Arc-shaped abutment block; 7. Inserted arc plate; 701. Outer abutment plate; 8. Inserted filter plate; 9. Fixing rod; 10. Fixing frustum; 11. L-shaped slot; 12. Upper filter plate; 1201. Mounting protrusion; 13. Lower filter plate. Detailed Implementation
[0024] The technical solution of this utility model will be further described in detail below with reference to specific embodiments. Parts of this utility model that are not described in detail in the following embodiments, such as blast furnace gas entering the vessel through the inlet and being discharged through the outlet, and liquid in the vessel being discharged through the drain outlet, should all be understood as prior art known or should be known by those skilled in the art.
[0025] like Figure 1 As shown, an integrated desulfurization device for blast furnace gas includes a vessel body 1 and a detachable insert filter plate 8 mounted on the vessel body 1. Four supports 104 are arranged circumferentially at the bottom of the vessel body 1. The upper ends of the supports 104 are welded and fixed to the outer wall of the vessel body 1, and the lower ends of the supports 104 are respectively fixed with disc-shaped supports. A drain port 103 for liquid discharge is provided at the bottom of the vessel body 1. An inlet 102 for blast furnace gas to enter the vessel body 1 is provided on the side wall of the drain port 103. An outlet 101 for the treated blast furnace gas to exit from the vessel body 1 is provided at the top of the vessel body 1.
[0026] A replacement slot 2 is provided on the outer side wall of the vessel body 1 near its bottom. The replacement slot 2 is arranged in a 180° semi-circular direction along the vessel body 1. A through arc hole 4 is provided in the middle of the inner side wall of the vessel body 1 where the replacement slot 2 is located. The through arc hole 4 is arranged in a 180° semi-circular direction along the inner side wall of the vessel body 1. The inner side walls on both sides of the through arc hole 4 form inner abutment steps 3. The through arc hole 4 communicates with the interior of the vessel body 1, and the filter plate 8 can be inserted into the vessel body 1 through the through arc hole 4.
[0027] The plug-in filter plate 8 comprises an insertion arc plate 7 arranged on the outer side wall. The insertion arc plate 7 is arranged along the direction of the 180° semicircle of the plug-in filter plate 8, and is arranged with the same center as the plug-in filter plate 8. The plug-in filter plate 8 is arranged on the middle part of the inner side wall of the insertion arc plate 7. The upper side of the insertion arc plate 7 protrudes from the upper end surface of the plug-in filter plate 8 to form an outer side stop plate 701. The lower side of the insertion arc plate 7 protrudes from the lower end surface of the plug-in filter plate 8 to form an outer side stop plate 701. When the plug-in filter plate 8 is inserted into the kettle body 1 through the through arc hole 4, the two outer side stop plates 701 on the plug-in filter plate 8 can be respectively abutted with the corresponding inner stop steps 3 to enable the plug-in filter plate 8 to be detachably installed on the kettle body 1 by being clamped in the replacement clamping groove 2 through the insertion arc plate 7.
[0028] Further, the kettle body 1 has an accommodation arc groove 6 arranged on the inner side wall along the direction of the 180° semicircle. The accommodation arc groove 6 is in communication with the through arc hole 4 and the replacement clamping groove 2. The width of the accommodation arc groove 6 is greater than the thickness of the inner stop step 3. The height of the accommodation arc groove 6 is consistent with the height of the through arc hole 4. An arc-shaped stop block 601 is fixed on the outer side wall of the plug-in filter plate 8 along the direction of the 180° semicircle. The two ends of the arc-shaped stop block 601 are respectively connected with the two ends of the insertion arc plate 7. The thickness of the arc-shaped stop block 601 is the same as the thickness of the plug-in filter plate 8. When the plug-in filter plate 8 is inserted into the kettle body 1 through the through arc hole 4, the arc-shaped stop block 601 on the plug-in filter plate 8 can pass through the accommodation arc groove 6. The plug-in filter plate 8 is stably inserted into the kettle body 1 by being clamped with the accommodation arc groove 6 through the arc-shaped stop block 601, and is used for filtering impurities in the blast furnace gas.
[0029] Further, the kettle body 1 has a plurality of sets of fixing assemblies arranged on the outer side wall. The plurality of sets of fixing assemblies are arranged on the outer side of the insertion arc plate 7 along the circumferential direction of the kettle body 1, so as to clamp the insertion arc plate 7 in the replacement clamping groove 2 through the fixing assemblies. Any one set of fixing assemblies comprises three fixing rings 5 arranged along the axial direction of the kettle body 1 and one fixing plug 9. One of the three fixing rings 5 is fixed on the outer side wall of the insertion arc plate 7. The other two fixing rings 5 are respectively fixed on the outer side wall of the kettle body 1 on the upper side and the lower side of the replacement clamping groove 2. The fixing plug 9 is in the shape of L. The lower end of the fixing plug 9 passes through the three fixing rings 5 in sequence and can extrude and deform the sealing gasket through the outer side stop plate 701 to achieve the sealing effect of preventing the blast furnace gas from leaking. In addition, the thickness of the plug-in filter plate 8 is slightly smaller than the width of the replacement clamping groove 2, so that the outer side wall of the insertion arc plate 7 can be flush with the corresponding outer side wall of the kettle body 1 after the fixing plug 9 extrudes and deforms the sealing gasket.
[0030] The embodiment is an improved scheme based on the embodiment 1. The main structure is the same as that of the embodiment 1. The improvement lies in that Figure 3 , Figure 4 and Figure 5As shown, a lower filter plate 13 is detachably installed in the kettle body 1 directly below the plug-in filter plate 8. A fixed circular table 10 for bearing the lower filter plate 13 is arranged on the inner side wall of the kettle body 1 along the circumference thereof. The filter holes on the lower filter plate 13 have a larger diameter than the filter holes on the plug-in filter plate 8, so that the blast furnace gas entering the kettle body 1 through the gas inlet 102 is first filtered by the lower filter plate 13 and then filtered by the plug-in filter plate 8, thereby improving the filtering effect on the impurities in the blast furnace gas.
[0031] In addition, the lower filter plate 13 shares the work of filtering the impurities in the blast furnace gas with the plug-in filter plate 8. Since the plug-in filter plate 8 has a more complex structure than the lower filter plate 13 and the cost of the plug-in filter plate 8 is higher than that of the lower filter plate 13, the frequency of replacing the plug-in filter plate 8 is reduced, thereby reducing the cost to some extent.
[0032] Further, two pull ropes (not shown in the figure) are fixed to the upper end surface of the lower filter plate 13. A person can hold the pull ropes to place the lower filter plate 13 on the fixed circular table 10 or pull the lower filter plate 13 out for replacement, thereby improving the replacement efficiency.
[0033] Further, an upper filter plate 12 is detachably installed in the kettle body 1 directly above the plug-in filter plate 8. The left and right outer side walls of the upper filter plate 12 are respectively fixed with a clamping protrusion 1201. L-shaped clamping grooves 11 are formed in the inner side wall of the kettle body 1 for clamping the clamping protrusions 1201. The clamping protrusions 1201 on both sides of the upper filter plate 12 are respectively inserted into the corresponding L-shaped clamping grooves 11. After the upper filter plate 12 is moved upward, it is clamped in the L-shaped clamping grooves 11 by rotating, so that the upper filter plate 12 is installed directly above the plug-in filter plate 8. The filter holes on the upper filter plate 12 have a smaller diameter than the filter holes on the plug-in filter plate 8, so that some impurities that are not filtered by the plug-in filter plate 8 can be filtered, thereby further improving the filtering effect of the blast furnace gas.
Claims
1. A high furnace gas fine desulfurization integrated device, comprising a kettle body (1), the kettle body (1) top is provided with a gas outlet (101), the kettle body (1) bottom is provided with a liquid outlet (103), the liquid outlet (103) side wall is provided with a gas inlet (102), characterized in that: The kettle body (1) is detachably provided with an inserted filter plate (8), and the inserted filter plate (8) is provided with an inserted arc plate (7) on the outer side wall of the 180-degree half ring. The inserted arc plate (7) is coaxial with the inserted filter plate (8), and the upper end face and the lower end face of the inserted arc plate (7) protruding from the inserted filter plate (8) form an outer side abutting plate (701), respectively. The kettle body (1) is provided with a replacement clamping groove (2) on the outer side wall along the half ring, and a through arc hole (4) is provided on the inner side wall of the kettle body (1) at the middle part along the circumference. The through arc hole (4) is used for horizontally inserting the inserted filter plate (8) into the kettle body (1), and the inner side walls on both sides of the through arc hole (4) and the replacement clamping groove (2) form an inner abutting step (3), respectively. The inner abutting step (3) is used for clamping and abutting with the outer side abutting plate (701) to seal the kettle body (1).
2. The integrated device for fine desulfurization of blast furnace gas according to claim 1, characterized in that: The half ring outer side wall of the inserted filter plate (8) opposite to the inserted arc plate (7) is provided with an arc-shaped abutting block (601), and the kettle body (1) is provided with a containing arc groove (6) for slidingly penetrating the arc-shaped abutting block (601). The containing arc groove (6) is communicated with the through arc hole (4) and the replacement clamping groove (2), and the width of the containing arc groove (6) is greater than the width of the inner abutting step (3).
3. The integrated device for fine desulfurization of blast furnace gas according to claim 1, characterized in that: Two inner abutting steps (3) are attached with sealing gaskets on the outer side walls.
4. The integrated device for fine desulfurization of blast furnace gas according to claim 3, characterized in that: The kettle body (1) is fixed with one fixed ring (5) on the outer side wall on both sides of the replacement clamping groove (2), and the outer side wall of the inserted arc plate (7) is fixed with a fixed ring (5). Three fixed rings (5) are arranged along the axial direction of the kettle body (1), and a L-shaped fixed insertion rod (9) is arranged in the three fixed rings (5). The fixed insertion rod (9) is used for inserting into the three fixed rings (5) and extruding the sealing gasket through the outer side abutting plate (701) to achieve sealing.
5. The integrated fine desulfurization device for blast furnace gas according to claim 1, characterized in that: A lower filter plate (13) is detachably installed below the inserted filter plate (8) in the kettle body (1), and a fixed circular table (10) is arranged on the inner side wall of the kettle body (1) along the circumference for bearing and placing the lower filter plate (13).
6. The integrated fine desulfurization device for blast furnace gas according to claim 5, characterized in that: The pore diameter of the filter holes on the lower filter plate (13) is greater than that of the filter holes on the inserted filter plate (8).
7. The integrated fine desulfurization device for blast furnace gas according to claim 1, characterized in that: An upper filter plate (12) is detachably installed above the inserted filter plate (8) in the kettle body (1), and the outer side wall of the upper filter plate (12) is symmetrically provided with clamping protrusions (1201). An L-shaped clamping groove (11) is provided on the inner side wall of the kettle body (1) for rotating clamping of the corresponding clamping protrusions (1201).
8. The integrated fine desulfurization device for blast furnace gas according to claim 7, characterized in that: The pore diameter of the filter holes on the upper filter plate (12) is smaller than that of the filter holes on the inserted filter plate (8).