A high-activity calcium-based dry desulfurization device

By introducing gas filtration components into the calcium-based dry desulfurization equipment for blast furnace hot blast stoves, the environmental pollution problem caused by unfiltered desulfurization gases has been solved, achieving efficient gas filtration and improved environmental performance.

CN224405362UActive Publication Date: 2026-06-26CHONGQING BANGRUN ENVIRONMENTAL PROTECTION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING BANGRUN ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-07-25
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing calcium-based dry desulfurization spray humidification equipment for blast furnace hot blast stoves causes environmental pollution because the desulfurized gas is discharged directly through the exhaust port without filtration.

Method used

A highly active calcium-based dry desulfurization device was designed, comprising a desulfurization device body, a water supply component, an exhaust port, and a gas filtration assembly. The gas filtration assembly consists of a filter pipe, a filter box, an assembly frame, an assembly base, a fixing component, a filter element, a handle, an exhaust pipe, an exhaust fan, and auxiliary dustproof components. The filter pipe is connected to the exhaust port, and the filter box is connected to the filter pipe. The filter element is assembled inside the filter box and is used to filter the desulfurization gas. The exhaust fan is used to discharge the filtered gas, and the auxiliary dustproof components are used to isolate external dust.

Benefits of technology

It effectively filters particles and harmful substances in desulfurized gases, reduces environmental pollution, and improves desulfurization efficiency and environmental performance.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224405362U_ABST
    Figure CN224405362U_ABST
Patent Text Reader

Abstract

The utility model relates to desulfurization equipment technical field, concretely relates to a kind of high-activity calcium-based dry method desulfurization equipment, including desulfurization equipment main body, multiple water supply parts, exhaust port and gas filtering assembly, gas filtering assembly includes filter tube, filter box, assembly frame, assembly seat, two fixing parts, filter part, handle, exhaust pipe, exhaust fan and auxiliary dustproof part, gas after desulfurization treatment is discharged through exhaust port, enters filter box inside through filter tube, carries out gas adsorption filtration by filter part on assembly seat, filtered gas is discharged quickly by exhaust fan, auxiliary dustproof part is used to assist the dust of outside to enter exhaust fan inside, to solve the existing blast furnace hot blast stove calcium-based dry method desulfurization spraying humidification equipment, since the gas after desulfurization is directly discharged through exhaust port without filtering, therefore the gas of discharge can cause environmental pollution.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of desulfurization equipment technology, and in particular to a highly active calcium-based dry desulfurization equipment. Background Technology

[0002] Blast furnace hot blast stoves generate a large amount of sulfur-containing flue gas during steel production, which requires the use of calcium-based dry desulfurization technology for desulfurization treatment. Although traditional calcium-based dry desulfurization technology has advantages such as low investment and small footprint, it has relatively low desulfurization efficiency and low limestone utilization rate.

[0003] The prior art (CN223042506U) discloses a calcium-based dry desulfurization spray humidification device for blast furnace hot blast stoves, including a desulfurization equipment body. An exhaust port is opened on the outside of the desulfurization equipment body. Several water pumps are set at the end of the desulfurization equipment body away from the exhaust port. Each water pump is connected to an external water pipe. By setting water pumps on the outside of the desulfurization equipment body, the water pumps can input water into the outer connecting ring, inner connecting ring and connecting pipe through water supply pipes. Then, the water is discharged into the desulfurization equipment body through atomizing nozzles. The desulfurized gas is discharged through the exhaust port, which makes it convenient for the staff to control the humidity inside the desulfurization equipment body, thereby improving the reaction activity of calcium-based powder and increasing the desulfurization efficiency.

[0004] However, by using the above method, the desulfurized gas is discharged directly through the exhaust port without being filtered, which will cause environmental pollution. Utility Model Content

[0005] The purpose of this invention is to provide a highly active calcium-based dry desulfurization equipment, which aims to solve the problem of environmental pollution caused by the fact that the desulfurized gas is directly discharged through the exhaust port without filtration in the existing calcium-based dry desulfurization spray humidification equipment for blast furnace hot blast stoves.

[0006] To achieve the above objectives, this utility model provides a highly active calcium-based dry desulfurization device, comprising a desulfurization device body, multiple water supply components, an exhaust port, and a gas filtration assembly, wherein the multiple water supply components are respectively disposed on one side of the desulfurization device body; and the exhaust port is disposed on one side of the desulfurization device body.

[0007] The gas filtration assembly includes a filter tube, a filter box, an assembly frame, an assembly base, two fasteners, a filter element, a handle, an exhaust pipe, an exhaust fan, and auxiliary dustproof components.

[0008] The filter tube is connected to the exhaust port and located on one side of the exhaust port; the filter box is connected to the filter tube and located on one side of the filter tube; the assembly frame is fixedly connected to the filter box and located on one side of the filter box; the assembly base is located on one side of the assembly frame; the two fixing parts are respectively disposed on both sides of the assembly base; the filter element is disposed on one side of the assembly base; the handle is fixedly connected to the assembly base and located on one side of the assembly base; the exhaust pipe is connected to the filter box and located on one side of the filter box; the exhaust fan is connected to the exhaust pipe and located on one side of the exhaust pipe; the auxiliary dustproof component is disposed on one side of the exhaust fan.

[0009] The water supply component includes a water supply pipe and a water supply pump. The water supply pipe is connected to the main body of the desulfurization equipment and is located on one side of the main body of the desulfurization equipment. The water supply pump is connected to the water supply pipe and is located on one side of the water supply pipe.

[0010] The fastener includes a fixing plate and a locking pin. The fixing plate is fixedly connected to the mounting base and is located on one side of the mounting base. The locking pin is threadedly connected to the fixing plate and is located on one side of the fixing plate.

[0011] The filter element includes a filter frame, an activated carbon adsorption layer, filter cotton, and an electrostatic filter. The filter frame is fixedly connected to the mounting base and located on one side of the mounting base; the activated carbon adsorption layer is fixedly connected to the filter frame and located on one side of the filter frame; the filter cotton is fixedly connected to the filter frame and located on the side of the filter frame closer to the activated carbon adsorption layer; and the electrostatic filter is fixedly connected to the filter frame and located on the side of the filter frame closer to the filter cotton.

[0012] The auxiliary dustproof component includes an adsorption frame and an iron dustproof net. The adsorption frame is fixedly connected to the exhaust fan and is located on one side of the exhaust fan; the iron dustproof net is located on one side of the adsorption frame.

[0013] This invention discloses a highly active calcium-based dry desulfurization device. The main body of the desulfurization device, in conjunction with multiple water supply components, performs calcium-based dry desulfurization treatment. The filter element, along with the mounting base, is assembled inside the filter box and fixed by two fixing components. The desulfurized gas is then discharged through the exhaust port, passes through the filter pipe, and enters the filter box. It undergoes gas adsorption and filtration by the filter element on the mounting base. The filtered gas is then rapidly discharged through the exhaust fan. An auxiliary dustproof component helps prevent external dust from entering the exhaust fan. This solves the problem of environmental pollution caused by the direct, unfiltered discharge of desulfurized gas from the exhaust port in existing calcium-based dry desulfurization spray humidification equipment for blast furnace hot blast stoves. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a front view of the entire utility model.

[0017] Figure 3 This is a structural schematic diagram of the entire utility model from another angle.

[0018] Figure 4 This is a cross-sectional view of the entire utility model.

[0019] 101-Desulfurization equipment body, 102-Water supply component, 103-Exhaust port, 104-Filter pipe, 105-Filter box, 106-Assembly frame, 107-Assembly base, 108-Fixing component, 109-Filter component, 110-Handle, 111-Exhaust pipe, 112-Exhaust fan, 113-Auxiliary dustproof component, 114-Water supply pipe, 115-Water supply pump, 116-Fixing plate, 117-Locking pin, 118-Filter frame, 119-Activated carbon adsorption layer, 120-Filter cotton, 121-Electrostatic filter, 122-Adsorption frame, 123-Iron dustproof net. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] Please see Figures 1-4 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a front view of the entire utility model. Figure 3 This is a structural schematic diagram of the entire utility model from another angle. Figure 4 This is a cross-sectional view of the entire utility model.

[0022] This utility model provides a highly active calcium-based dry desulfurization device: It includes a desulfurization device body 101, multiple water supply components 102, an exhaust port 103, and a gas filtration assembly. The gas filtration assembly includes a filter pipe 104, a filter box 105, an assembly frame 106, an assembly base 107, two fixing components 108, a filter element 109, a handle 110, an exhaust pipe 111, an exhaust fan 112, and an auxiliary dustproof component 113. The water supply components 102 include a water supply pipe 114 and a water pump 115. The fixing component 108 includes a fixing plate 116 and a locking pin 117. The filter component 109 includes a filter frame 118, an activated carbon adsorption layer 119, a filter cotton 120, and an electrostatic filter 121. The auxiliary dustproof component 113 includes an adsorption frame 122 and an iron dustproof net 123. The aforementioned solution solves the problem of environmental pollution caused by the direct discharge of desulfurized gas through the exhaust port without filtration in the existing calcium-based dry desulfurization spray humidification equipment for blast furnace hot blast stoves.

[0023] In this specific embodiment, multiple water supply components 102 are respectively disposed on one side of the desulfurization equipment body 101; the exhaust port 103 is disposed on one side of the desulfurization equipment body 101; the desulfurization equipment body 101 cooperates with multiple water supply components 102 to perform calcium-based dry desulfurization treatment. The desulfurization equipment body 101 is prior art, and the desulfurization equipment body 101 in the patent document with publication number CN223042506U will not be described in detail here.

[0024] The filter pipe 104 is connected to the exhaust port 103 and located on one side of the exhaust port 103; the filter box 105 is connected to the filter pipe 104 and located on one side of the filter pipe 104; the assembly frame 106 is fixedly connected to the filter box 105 and located on one side of the filter box 105; the assembly base 107 is located on one side of the assembly frame 106; two fixing members 108 are respectively disposed on both sides of the assembly base 107; the filter element 109 is disposed on one side of the assembly base 107; the handle 110 is fixedly connected to the assembly base 107 and located on one side of the assembly base 107; the exhaust pipe 111 is connected to the filter box 105 and located on one side of the filter box 105; the exhaust fan 112 is connected to the exhaust pipe 111 and located on one side of the exhaust pipe 111; the auxiliary dustproof component 113 is disposed on... On one side of the exhaust fan 112, the main body 101 of the desulfurization equipment, together with multiple water supply components 102, performs calcium-based dry desulfurization treatment. The filter element 109, together with the mounting base 107, is assembled in the filter box 105 and fixed by two fixing components 108. Then, the desulfurized gas is discharged through the exhaust port 103, and then enters the filter box 105 through the filter pipe 104. The gas is adsorbed and filtered by the filter element 109 on the mounting base 107. The filtered gas is quickly discharged through the exhaust fan 112. The auxiliary dustproof component 113 is used to help isolate external dust from entering the exhaust fan 112. This solves the problem of environmental pollution caused by the direct discharge of desulfurized gas through the exhaust port without filtration in the existing calcium-based dry desulfurization spray humidification equipment for blast furnace hot blast stoves.

[0025] Secondly, the water supply pipe 114 is connected to the main body 101 of the desulfurization equipment and is located on one side of the main body 101 of the desulfurization equipment; the water supply pump 115 is connected to the water supply pipe 114 and is located on one side of the water supply pipe 114. The water supply pipe 114, in conjunction with the water supply pump 115, supplies water to the main body 101 of the desulfurization equipment to control the humidity inside the main body 101 of the desulfurization equipment.

[0026] Meanwhile, the fixing plate 116 is fixedly connected to the assembly base 107 and is located on the assembly base 107; the locking pin 117 is threadedly connected to the fixing plate 116 and is located on one side of the fixing plate 116; the fixing plate 116 is fastened to the assembly frame 106; then the locking pin 117 is twisted to thread it to the assembly frame 106 to complete the assembly of the filter element 109.

[0027] In addition, the filter frame 118 is fixedly connected to the mounting base 107 and located on one side of the mounting base 107; the activated carbon adsorption layer 119 is fixedly connected to the filter frame 118 and located on one side of the filter frame 118; the filter cotton 120 is fixedly connected to the filter frame 118 and located on the side of the filter frame 118 close to the activated carbon adsorption layer 119; the electrostatic filter 121 is fixedly connected to the filter frame 118 and located on the side of the filter frame 118 close to the filter cotton 120. The filter frame 118 is used to support the assembly of the activated carbon adsorption layer 119, the filter cotton 120 and the electrostatic filter 121. The activated carbon adsorption layer 119 is used to adsorb particles present in the gas. The filter cotton 120 is used to filter fine impurities in the gas. After filtration by the filter cotton 120, the electrostatic filter 121 adsorbs particulate matter in the gas by electrostatic force, reducing harmful substances in the gas produced by desulfurization.

[0028] Furthermore, the adsorption frame 122 is fixedly connected to the exhaust fan 112 and is located on one side of the exhaust fan 112; the iron dustproof net 123 is located on one side of the adsorption frame 122, and the adsorption frame 122 is used to adsorb the iron dustproof net 123 to help isolate external dust from entering the interior of the exhaust fan 112.

[0029] In using this utility model, the desulfurization equipment body 101 is equipped with multiple water supply components 102, and the water supply pipe 114, in conjunction with the water supply pump 115, supplies water to the desulfurization equipment body 101 to control the humidity inside the desulfurization equipment body 101. The filter element 109, in conjunction with the mounting base 107, is assembled in the filter box 105 and fixed by two fixing components 108. Then, the desulfurized gas is discharged through the exhaust port 103, and then enters the filter box 105 through the filter pipe 104. The activated carbon adsorption layer 119 is used to adsorb particles present in the gas. The filter cotton 120 is used to filter fine impurities in the gas. After filtration by the filter cotton 120, the electrostatic filter 121 adsorbs particulate matter in the gas through electrostatic force, reducing harmful substances in the gas produced by desulfurization. The filtered gas is quickly discharged through the exhaust fan 112. The adsorption frame 122 is used to adsorb the iron dustproof net 123, which helps to prevent external dust from entering the interior of the exhaust fan 112. This solves the problem of environmental pollution caused by the direct discharge of desulfurized gas through the exhaust port without filtration in the existing calcium-based dry desulfurization spray humidification equipment for blast furnace hot blast stoves.

[0030] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A highly active calcium-based dry desulfurization device, comprising a desulfurization device body, multiple water supply components, and an exhaust port, wherein the multiple water supply components are respectively disposed on one side of the desulfurization device body; and the exhaust port is disposed on one side of the desulfurization device body; characterized in that, It also includes gas filtration components. The gas filtration assembly includes a filter tube, a filter box, an assembly frame, an assembly base, two fasteners, a filter element, a handle, an exhaust pipe, an exhaust fan, and auxiliary dustproof components. The filter tube is connected to the exhaust port and located on one side of the exhaust port; the filter box is connected to the filter tube and located on one side of the filter tube; the assembly frame is fixedly connected to the filter box and located on one side of the filter box; the assembly base is located on one side of the assembly frame; the two fixing parts are respectively disposed on both sides of the assembly base; the filter element is disposed on one side of the assembly base; the handle is fixedly connected to the assembly base and located on one side of the assembly base; the exhaust pipe is connected to the filter box and located on one side of the filter box; the exhaust fan is connected to the exhaust pipe and located on one side of the exhaust pipe; the auxiliary dustproof component is disposed on one side of the exhaust fan.

2. The highly active calcium-based dry desulfurization equipment as described in claim 1, characterized in that, The water supply component includes a water supply pipe and a water supply pump. The water supply pipe is connected to the main body of the desulfurization equipment and is located on one side of the main body of the desulfurization equipment. The water supply pump is connected to the water supply pipe and is located on one side of the water supply pipe.

3. The highly active calcium-based dry desulfurization equipment as described in claim 2, characterized in that, The fastener includes a fixing plate and a locking pin. The fixing plate is fixedly connected to the mounting base and is located on one side of the mounting base. The locking pin is threadedly connected to the fixing plate and is located on one side of the fixing plate.

4. The highly active calcium-based dry desulfurization equipment as described in claim 3, characterized in that, The filter element includes a filter frame, an activated carbon adsorption layer, filter cotton, and an electrostatic filter screen. The filter frame is fixedly connected to the mounting base and located on one side of the mounting base; the activated carbon adsorption layer is fixedly connected to the filter frame and located on one side of the filter frame; the filter cotton is fixedly connected to the filter frame and located on the side of the filter frame closer to the activated carbon adsorption layer; and the electrostatic filter screen is fixedly connected to the filter frame and located on the side of the filter frame closer to the filter cotton.

5. The highly active calcium-based dry desulfurization equipment as described in claim 4, characterized in that, The auxiliary dustproof component includes an adsorption frame and an iron dustproof net. The adsorption frame is fixedly connected to the exhaust fan and is located on one side of the exhaust fan; the iron dustproof net is located on one side of the adsorption frame.