A dry desulfurization device for kilns

Abstract

This utility model discloses a dry desulfurization device for kilns, belonging to the field of desulfurization technology. It includes a tower body, an inlet pipe located on the bottom side wall of the tower body, and an outlet pipe located on the top side wall of the tower body. Inside the tower body, a filter chamber and a desulfurization chamber are arranged by a partition. The filter chamber contains a filter assembly, the output end of which extends through the partition into the desulfurization chamber. The desulfurization chamber is filled with granular desulfurizing agent. A collection hopper for collecting filtered particulate matter is connected to the bottom of the tower body. This utility model divides the tower body into a filter chamber and a desulfurization chamber by a partition, achieving an integrated design of filtration and desulfurization. Furthermore, the filter assembly extends directly into the desulfurization chamber, simplifying the equipment structure. The overall device has a small footprint, facilitating miniaturization and integrated application. The filter assembly effectively removes particulate matter from the flue gas, preventing dust and other particulate matter in the flue gas from reducing the reactivity and utilization rate of the desulfurizing agent.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization technology, and in particular to a dry desulfurization device for kilns. Background Technology

[0002] Kiln flue gas contains large amounts of sulfur dioxide (SO2) and particulate pollutants, and direct emissions can cause serious environmental pollution. Currently, common flue gas desulfurization technologies include wet desulfurization and dry desulfurization. While wet desulfurization (such as the limestone-gypsum method) has high desulfurization efficiency, it suffers from problems such as wastewater treatment and equipment corrosion; while dry desulfurization (such as activated carbon adsorption and calcium spraying desulfurization) has advantages such as simple processes and no wastewater discharge.

[0003] However, existing dry desulfurization devices still have certain shortcomings in actual operation. The flue gas in the kiln often contains a large amount of particulate matter. If these particulate matter are not pre-treated, they will mix with the desulfurizing agent, which will reduce the reactivity and utilization rate of the desulfurizing agent. Although some existing dry desulfurization devices have added a filtration stage, the filtration and desulfurization stages are mostly set up separately. However, the overall structure of the equipment is complex and occupies a large area, which is not conducive to miniaturization and integrated application. Therefore, there are still shortcomings. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art by proposing a dry desulfurization device for kilns.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dry desulfurization device for a kiln includes a tower body, an inlet pipe disposed on the bottom side wall of the tower body, and an outlet pipe disposed on the top side wall of the tower body. The tower body is equipped with a filter chamber and a desulfurization chamber through a partition. The filter chamber is equipped with a filter assembly for filtering particulate matter in the flue gas, and the filter assembly corresponds to the inlet pipe. The output end of the filter assembly extends through the partition into the desulfurization chamber. The desulfurization chamber is filled with granular desulfurizing agent. The bottom of the tower body is connected to a collection hopper for collecting the filtered particulate matter.

[0007] As a preferred technical solution of this application, the filter assembly includes a first filter component with one end fixed to the inner wall of the hopper and the other end abutting against the partition, and a second filter component with one end connected to the top of the first filter component and the other end passing through the partition and extending into the desulfurization chamber, wherein the first filter component and the second filter component are connected to each other.

[0008] As a preferred technical solution of this application, the first filter component includes a first mounting frame fixed on the inner wall of the hopper, a filter screen cylinder disposed on the top of the first mounting frame via a connecting bearing, a filter baffle disposed on the outer wall of the filter screen cylinder, and a second mounting frame disposed on the top of the filter screen cylinder via a connecting bearing.

[0009] As a preferred technical solution of this application, the filter baffles are arranged in a ring along the outer wall of the filter screen cylinder and correspond to the air inlet pipe, and the top of the second mounting bracket abuts against the partition.

[0010] As a preferred technical solution of this application, the second filter component includes a support frame fixedly disposed on the top of the second mounting frame and a filter cloth sleeved on the outer wall of the support frame.

[0011] As a preferred technical solution of this application, the top of the tower body is provided with a detachable tower cover, the outer wall of the tower body is provided with a discharge port, the discharge port corresponds to the top of the partition plate, and the collecting hopper is detachably connected to the tower body.

[0012] Compared with the prior art, this utility model provides a dry desulfurization device for kilns, which has the following beneficial effects:

[0013] 1. The dry desulfurization device for the kiln divides the tower body into a filtration chamber and a desulfurization chamber through a partition, realizing an integrated design of filtration and desulfurization. In addition, the filtration components extend directly to the desulfurization chamber, simplifying the equipment structure. The overall device occupies a small area, which is conducive to miniaturization and integrated application.

[0014] 2. The dry desulfurization device for the kiln adopts a multi-stage filtration system consisting of a first filter component and a second filter component. The first filter component includes a rotatable filter screen and a filter baffle to achieve dynamic filtration. The second filter component uses filter cloth for fine filtration, effectively removing particulate matter from the flue gas and preventing dust and other particulate matter in the flue gas from reducing the reactivity and utilization rate of the desulfurizing agent.

[0015] 3. In this dry desulfurization device for kilns, the filter screen is rotated inside the tower body and can generate corresponding centrifugal force under the impact of flue gas, which avoids dust particles adhering to the filter screen and filter baffle, effectively preventing filter screen blockage and extending the maintenance cycle.

[0016] 4. The dry desulfurization device for this kiln features a detachable connection between the tower cover and the collection hopper, facilitating maintenance of the filter components and the interior of the tower. The discharge port allows for easy replacement of the desulfurizing agent, making overall maintenance convenient and reducing operating costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 A cross-sectional view of this utility model Figure 1 ;

[0019] Figure 3 A cross-sectional view of this utility model Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the disassembly structure of the filter component in this utility model. Figure 1 ;

[0021] Figure 5 This is a schematic diagram of the disassembly structure of the filter component in this utility model. Figure 2 .

[0022] In the picture:

[0023] 100. Tower body; 101. Inlet pipe; 102. Outlet pipe; 103. Filter chamber; 104. Desulfurization chamber; 1041. Granular desulfurizing agent; 105. Baffle plate; 106. Tower cover; 107. Discharge port; 200. Filter assembly; 201. Collection hopper; 202. First filter component; 2021. First mounting frame; 2022. Filter screen cylinder; 2023. Filter baffle; 2024. Second mounting frame; 203. Second filter component; 2031. Support frame; 2032. Filter cloth. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0025] Reference Figure 1-3A dry desulfurization device for a kiln includes a tower body 100, an inlet pipe 101 disposed on the bottom side wall of the tower body 100, and an outlet pipe 102 disposed on the top side wall of the tower body 100. Inside the tower body 100, a filter chamber 103 and a desulfurization chamber 104 are disposed via a partition 105. The filter chamber 103 contains a filter assembly 200 for filtering particulate matter in the flue gas, and the filter assembly 200 corresponds to the inlet pipe 101. The output end of the filter assembly 200 extends through the partition 105 into the desulfurization chamber 104, which is filled with granular desulfurizing agent 1041. The bottom is connected to a collection hopper 201 for collecting filtered particulate matter. Specifically, the flue gas generated by the kiln enters the tower body 100 through the inlet pipe 101. When it enters the tower body 100, it first enters the filter chamber 103. The filter components 200 set inside the filter chamber 103 effectively filter the particulate matter inside the flue gas, preventing the particulate matter from affecting the reactivity and utilization rate of the desulfurizing agent. Then, the filtered flue gas enters the desulfurization chamber 104 and reacts with the desulfurizing agent inside to achieve the desulfurization effect. The filtered and desulfurized flue gas is discharged through the outlet pipe 102.

[0026] Reference Figure 2-5 The filter assembly 200 includes a first filter element 202 with one end fixed to the inner wall of the collection hopper 201 and the other end abutting against the partition 105, and a second filter element 203 with one end connected to the top of the first filter element 202 and the other end passing through the partition 105 and extending into the desulfurization chamber 104. The first filter element 202 and the second filter element 203 are connected to each other. Specifically, the first filter element 202 and the second filter element 203 are used to effectively filter the particulate matter contained in the flue gas, so as to avoid the particulate matter from mixing with the desulfurizing agent and affecting the desulfurization effect of the desulfurizing agent on the flue gas.

[0027] The first filter component 202 includes a first mounting bracket 2021 fixed to the inner wall of the collecting hopper 201, a filter screen cylinder 2022 mounted on the top of the first mounting bracket 2021 via a connecting bearing, a filter baffle 2023 mounted on the outer wall of the filter screen cylinder 2022, and a second mounting bracket 2024 mounted on the top of the filter screen cylinder 2022 via a connecting bearing. Several sets of filter baffles 2023 are arranged in a ring along the outer wall of the filter screen cylinder 2022 and correspond to the air inlet pipe 101. The top of the second mounting bracket 2024 abuts against the partition plate 105. Specifically, when flue gas passes through the air inlet... When pipe 101 enters the tower body 100, it will first generate a certain impact force on the filter baffle 2023. Since the filter screen cylinder 2022 is rotatably set between the first mounting bracket 2021 and the second mounting bracket 2024 through the connecting bearing, when the flue gas impacts the filter baffle 2023, it will drive it to rotate, thereby generating a certain centrifugal force. This will prevent particulate matter from adhering to the filter screen cylinder 2022 and the filter baffle 2023, thus avoiding a reduction in the filtration effect. At the same time, the filter screen cylinder 2022 and the filter baffle 2023 set together can achieve a dynamic filtration effect.

[0028] The second filter component 203 includes a support frame 2031 fixedly mounted on the top of the second mounting bracket 2024 and a filter cloth 2032 sleeved on the outer wall of the support frame 2031. The filter cloth 2032 facilitates fine filtration of particulate matter. It should be noted that the filter cloth 2032 can be fixed to the support frame 2031 by pressure strips or by clamps. This is a mature existing technology and will not be described in detail here.

[0029] Reference Figure 1-3 The tower body 100 is equipped with a removable tower cover 106 at the top, which facilitates the injection of desulfurizing agent into the tower body 100 from the top. The outer wall of the tower body 100 is provided with a discharge port 107, which corresponds to the top of the partition plate 105. The discharge port 107 facilitates the individual replacement of the desulfurizing agent. The collection hopper 201 is detachably connected to the tower body 100. The collection hopper 201 facilitates the unified collection and cleaning of filtered particles. The detachable design facilitates the maintenance and upkeep of the filter assembly 200.

[0030] Specifically, when this dry desulfurization device for the kiln is in use: the sulfur-containing flue gas generated by the kiln enters the filter chamber 103 through the air inlet pipe 101 on the bottom side wall of the tower body 100. At this time, the flue gas first comes into contact with the filter baffle 2023 in the first filter component 202. The filter baffle 2023 is distributed in a ring along the outer wall of the filter screen cylinder 2022 and directly corresponds to the air inlet pipe 101. Therefore, the flue gas entering will generate a corresponding impact force on the filter baffle 2023. This impact force will drive the filter screen cylinder 2022 to rotate around the connecting bearing on the first mounting frame 2021 and the second mounting frame 2024, forming a dynamic filtration effect. The centrifugal force generated by the rotation can reduce the adhesion of particulate matter on the surface of the filter screen cylinder 2022 and the filter baffle 2023, avoiding filter blockage. The filter holes of the filter screen cylinder 2022 intercept large particulate impurities in the flue gas. The filtered particulate matter falls into the collection hopper 201 at the bottom under the action of gravity and is collected.

[0031] The filtered flue gas enters its internal channel through the filter screen cylinder 2022 and flows upward through the second filter component 203. The outer wall of the support frame 2031 of the second filter component 203 is covered with filter cloth 2032, which can finely filter the fine particulate matter remaining in the flue gas, ensuring that the particulate matter content of the flue gas entering the desulfurization chamber 104 is greatly reduced, so as to avoid affecting the activity of the desulfurizing agent. The filtered clean flue gas permeates through the filter cloth 2032, passes through the partition 105 and enters the desulfurization chamber 104.

[0032] The desulfurization chamber 104 is filled with granular desulfurizing agent 1041, such as activated carbon and limestone. This is an existing mature technology and will not be elaborated further here. The flue gas entering the desulfurization chamber 104 comes into full contact with the desulfurizing agent. Through chemical reaction, the sulfides in the flue gas, such as SO2, are fixed in the desulfurizing agent, thus completing the desulfurization and purification.

[0033] The clean flue gas after desulfurization is discharged through the outlet pipe 102 on the top side wall of the tower body 100. During the operation of the device, maintenance can be achieved in the following ways: the bottom of the collection hopper 201 is equipped with a slag discharge port, and a control valve is installed on the slag discharge port. The valve can be opened periodically to clean the particles collected inside. Secondly, the collection hopper 201 is detachably connected to the tower body 100 to facilitate the maintenance of the filter assembly 200. The desulfurizing agent can be replenished by opening the detachable tower cover 106 on the top of the tower body 100. The desulfurizing agent that has been used up can be discharged through the discharge port 107 on the side wall of the tower body 100.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dry desulfurization device for a kiln, comprising a tower body (100), an inlet pipe (101) disposed on the bottom side wall of the tower body (100), and an outlet pipe (102) disposed on the top side wall of the tower body (100), characterized in that, The tower body (100) is equipped with a filter chamber (103) and a desulfurization chamber (104) through a partition (105). The filter chamber (103) is equipped with a filter assembly (200) for filtering particulate matter in the flue gas. The filter assembly (200) corresponds to the air inlet pipe (101). The output end of the filter assembly (200) extends through the partition (105) into the desulfurization chamber (104). The desulfurization chamber (104) is filled with granular desulfurizing agent (1041). The bottom of the tower body (100) is connected to a collection hopper (201) for collecting the filtered particulate matter.

2. The dry desulfurization device for a kiln according to claim 1, characterized in that, The filter assembly (200) includes a first filter element (202) with one end fixed to the inner wall of the collection hopper (201) and the other end abutting against the partition (105), and a second filter element (203) with one end connected to the top of the first filter element (202) and the other end passing through the partition (105) and extending into the desulfurization chamber (104), wherein the first filter element (202) and the second filter element (203) are connected to each other.

3. The dry desulfurization device for a kiln according to claim 2, characterized in that, The first filter component (202) includes a first mounting bracket (2021) fixed on the inner wall of the hopper (201), a filter screen cylinder (2022) disposed on the top of the first mounting bracket (2021) via a connecting bearing, a filter baffle (2023) disposed on the outer wall of the filter screen cylinder (2022), and a second mounting bracket (2024) disposed on the top of the filter screen cylinder (2022) via a connecting bearing.

4. The dry desulfurization device for a kiln according to claim 3, characterized in that, The filter baffle (2023) is arranged in a ring along the outer wall of the filter cylinder (2022) and corresponds to the air inlet pipe (101). The top of the second mounting bracket (2024) abuts against the partition (105).

5. A dry desulfurization device for a kiln according to claim 4, characterized in that, The second filter component (203) includes a support frame (2031) fixedly mounted on the top of the second mounting frame (2024) and a filter cloth (2032) sleeved on the outer wall of the support frame (2031).

6. The dry desulfurization device for a kiln according to claim 1, characterized in that, The tower body (100) is provided with a detachable tower cover (106) at the top, and a discharge port (107) is provided on the outer wall of the tower body (100). The discharge port (107) corresponds to the top of the partition plate (105), and the collecting hopper (201) is detachably connected to the tower body (100).

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