Dust removal device for sintering burdening

Abstract

The utility model discloses a dust removal device for sintering burdening, and belongs to the technical field of dust removal. The dust removal device comprises a conical shell with a large upper part and a small lower part, the air inlet part is arranged at the upper end of the conical shell; wherein a plurality of groups of spraying heads are arranged on the upper side of the inner wall of the conical shell, and the spraying heads face the air inlet part; the exhaust pipe is fixedly connected to the conical shell; the air inlet position of the exhaust pipe is located in the conical shell and located at the lower end of the air inlet part. The dust removal net is arranged on the exhaust pipe; the trapping net is arranged in the conical shell; wherein the trapping net is positioned at the lower end of the exhaust pipe; by means of the conical shell, tail gas does rotary motion in the conical shell in a limited mode, the contact time of the tail gas and spraying liquid is longer, the tail gas makes contact with the spraying liquid more sufficiently, and the effect is better when the tail gas is filtered and collected in a follow-up multi-stage mode.

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology, and in particular to a dust removal device for sintering batching. Background Technology

[0002] Sintering is an important branch of the steel industry and plays a crucial role in the industry. Batching is the starting step of the sintering process, which involves mixing mineral powder, quicklime, and other materials in a certain proportion. As it is a dynamic operation, this process generates a large amount of dust, especially the dust generated by quicklime, which is difficult to handle. The main reason is that quicklime has an extremely fine particle size and strong diffusion. On the other hand, water needs to be added when adding quicklime to digest it, which causes a chemical reaction that generates heat, resulting in a large amount of evaporation.

[0003] In addition, quicklime dust has a certain stickiness, which can easily clog dust removal equipment. Moreover, its hydrates are highly alkaline and can corrode surrounding equipment. At present, the treatment of quicklime dust in the sintering batching process is a problem in the industry, and the treatment effect is poor. The common practice is to flush with large amounts of water and circulate with large amounts of air, which makes the treatment cost high and the treatment effect difficult to guarantee. Utility Model Content

[0004] The purpose of this utility model is to solve the problems mentioned in the background art and to provide a dust removal device for sintering batching.

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

[0006] A dust removal device for sintering batching includes: a conical shell that is wider at the top and narrower at the bottom; an air inlet disposed at the upper end of the conical shell; wherein multiple sets of spray heads are provided on the upper side of the inner wall of the conical shell, the spray heads facing the air inlet; an exhaust pipe fixedly connected to the conical shell; wherein the air inlet of the exhaust pipe is located inside the conical shell and at the lower end of the air inlet; a dust removal screen disposed on the exhaust pipe; and a collection screen disposed inside the conical shell; wherein the collection screen is located at the lower end of the exhaust pipe.

[0007] Preferably, it also includes an electrostatic precipitator, which is located inside the exhaust pipe and on the side of the dust collection net away from the collection net.

[0008] Preferably, the air intake section includes a ring pipe, a branch pipe, and an intake pipe. The branch pipe and the intake pipe are both connected to the branch pipe. The intake pipe is connected to the exhaust gas. The branch pipe is disposed inside the conical shell.

[0009] Preferably, the branch pipes are provided in 2-8 groups.

[0010] Preferably, the conical shell is provided with a liquid collection tank, which is located at the lower end of the collecting net.

[0011] Preferably, a filter screen frame is rotatably connected inside the exhaust pipe, the dust removal screen is set on the filter screen frame, a guide plate is fixedly connected inside the exhaust pipe, a sliding seat is slidably connected to the guide plate, a connecting ear is fixedly connected to the side of the sliding seat, the connecting ear is connected to the guide plate by a pressure relief spring, and a threaded rod is fixedly connected to the filter screen frame, the threaded rod is threadedly connected to the sliding seat.

[0012] Compared with the prior art, this utility model provides a dust removal device for sintering batching, which has the following beneficial effects:

[0013] The parts of this device not mentioned herein are the same as or can be implemented using existing technologies. This utility model, through the setting of the conical shell, restricts the exhaust gas to rotate within the conical shell, resulting in a longer and more thorough contact time with the spray liquid, thus making it more effective when subsequently filtered and collected in multiple stages. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a dust removal device for sintering batching proposed in this utility model;

[0015] Figure 2 This is a cross-sectional structural schematic diagram of a dust removal device for sintering batching proposed in this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the guide plate of a dust removal device for sintering batching proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the sliding seat of a dust removal device for sintering batching proposed in this utility model.

[0018] In the diagram: 1. Conical shell; 101. Collection net; 102. Liquid collection tank; 2. Air inlet; 201. Ring pipe; 202. Branch pipe; 203. Air inlet pipe; 3. Exhaust pipe; 301. Electrostatic precipitator; 302. Dust removal net; 303. Threaded rod; 4. Guide plate; 401. Sliding seat; 402. Connecting lug; 403. Pressure relief spring; 5. Spray head. Detailed Implementation

[0019] 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.

[0020] Example 1:

[0021] Reference Figure 1-2A dust removal device for sintering batching includes: a conical shell 1 that is larger at the top and smaller at the bottom; an air inlet 2 disposed at the upper end of the conical shell 1; wherein multiple sets of spray heads 5 are provided on the upper side of the inner wall of the conical shell 1, the spray heads 5 facing the air inlet 2, and the spray heads 5 are connected to a liquid delivery pipe; an exhaust pipe 3 fixedly connected to the conical shell 1; wherein the air inlet of the exhaust pipe 3 is located inside the conical shell 1 and at the lower end of the air inlet 2; a dust removal net 302 disposed on the exhaust pipe 3; and a collection net 101 disposed inside the conical shell 1; wherein the collection net 101 is located at the lower end of the exhaust pipe 3.

[0022] It also includes an electrostatic precipitator 301, which is located inside the exhaust pipe 3 and on the side of the dust collection net 302 away from the collection net 101. The electrostatic precipitator 301 is used for secondary collection and dust removal.

[0023] The intake section 2 includes a ring pipe 201, a branch pipe 202, and an intake pipe 203. Both the branch pipe 202 and the intake pipe 203 are connected to the branch pipe 202. The intake pipe 203 is connected to the exhaust gas, and the branch pipe 202 is located inside the conical shell 1.

[0024] The branch pipes 202 are provided in 2-8 groups. Specifically, the branch pipes 202 are arranged in a circular array at equal intervals on the conical shell 1, which can make the exhaust gas entering the conical shell 1 more uniform and better cooperate with the use of the spray head 5.

[0025] The conical shell 1 is provided with a liquid collection tank 102, which is located at the lower end of the collection net 101. The sprayed liquid can fall through the collection net 101 into the liquid collection tank 102 for collection.

[0026] When using this device, the air inlet pipe 203 is connected to the exhaust outlet. The exhaust gas enters the conical shell 1 evenly through the ring pipe 201 and the branch pipe 202, and the exhaust gas can come into contact with the sprayed liquid to capture large particles of impurities.

[0027] When the exhaust gas moves from top to bottom to the lower end of the exhaust pipe 3, it undergoes preliminary filtration through the dust removal screen 302, and then undergoes secondary filtration through the electrostatic dust removal device before being discharged.

[0028] The conical shell 1 restricts the exhaust gas to rotate within it, allowing for longer and more thorough contact with the spray liquid, resulting in better performance during subsequent multi-stage filtration and collection.

[0029] Example 2:

[0030] Reference Figure 1-4A dust removal device for sintering feed ingredients is basically the same as that in Example 1. Furthermore, a filter screen frame is rotatably connected inside the exhaust pipe 3, and a dust removal screen 302 is set on the filter screen frame. A guide plate 4 is fixedly connected inside the exhaust pipe 3, and a sliding seat 401 is slidably connected on the guide plate 4. A connecting ear 402 is fixedly connected to the side of the sliding seat 401. The connecting ear 402 is connected to the guide plate 4 through a pressure relief spring 403. A threaded rod 303 is fixedly connected to the filter screen frame, and the threaded rod 303 is threadedly connected to the sliding seat 401.

[0031] It should be noted that, since dust has adhesive properties after contacting the spray liquid, it will adhere to the dust removal screen 302 and gradually block the dust removal screen 302. At this time, since the sliding seat 401 is covered on the guide plate 4, the air pressure in the conical shell 1 will continuously increase and continuously push the sliding seat 401 to slide on the guide plate 4. When the sliding seat 401 leaves the guide plate 4, the air pressure in the conical shell 1 is released. Under the action of the pressure relief spring 403, the sliding seat 401 is pulled back to its original position and is pressed to prepare for the next pressure relief.

[0032] During the sliding process of the sliding seat 401, the threaded rod 303 and the filter screen frame can rotate, which shakes the dust on the dust removal screen 302, causing the dust to fall off, reducing the clogging, and improving the filtration effect of the dust removal screen 302.

[0033] 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 dust removal device for sintering batching, characterized in that, include: It has a conical shell that is larger at the top and smaller at the bottom (1); An air intake (2) is disposed at the upper end of the conical housing (1); The conical shell (1) has multiple sets of spray heads (5) on the upper side of its inner wall, and the spray heads (5) face the air inlet (2). The exhaust pipe (3) is fixedly connected to the conical housing (1); The air inlet of the exhaust pipe (3) is located inside the conical shell (1) and at the lower end of the air inlet (2); Dust removal screen (302) installed on the exhaust pipe (3); A trapping net (101) is installed inside the conical shell (1). The trapping net (101) is located at the lower end of the exhaust pipe (3).

2. The dust removal device for sintering batching according to claim 1, characterized in that, It also includes an electrostatic precipitator (301), which is located inside the exhaust pipe (3) and on the side of the dust collection net (302) away from the collection net (101).

3. The dust removal device for sintering batching according to claim 1, characterized in that, The air intake section (2) includes a ring pipe (201), a branch pipe (202), and an air intake pipe (203). The branch pipe (202) and the air intake pipe (203) are connected to the branch pipe (202). The air intake pipe (203) is connected to the exhaust gas. The branch pipe (202) is located inside the conical shell (1).

4. The dust removal device for sintering batching according to claim 3, characterized in that, The branch pipe (202) is provided with 2-8 groups.

5. The dust removal device for sintering batching according to claim 1, characterized in that, The conical shell (1) is provided with a liquid collection tank (102), which is located at the lower end of the collection net (101).

6. The dust removal device for sintering batching according to claim 1, characterized in that, A filter screen frame is rotatably connected inside the exhaust pipe (3), and the dust removal screen (302) is set on the filter screen frame. A guide plate (4) is fixedly connected inside the exhaust pipe (3), and a sliding seat (401) is slidably connected on the guide plate (4). A connecting ear (402) is fixedly connected to the side of the sliding seat (401). The connecting ear (402) is connected to the guide plate (4) through a pressure relief spring (403). A threaded rod (303) is fixedly connected on the filter screen frame, and the threaded rod (303) is threadedly connected to the sliding seat (401).

Images