Sintering flue gas air leakage detection device

Abstract

The utility model relates to the technical field of sintering in the metallurgical industry, and discloses a sintering flue gas air leakage detection device which comprises an air bellow and a sintering trolley arranged at the top end of the air bellow, an installation mechanism is arranged on the sintering trolley, a sealing mechanism is arranged in the installation mechanism, and one end of a communicating pipe extrudes a positioning rod. When the communication pipe is installed, the extruded positioning rod moves towards the left side and the right side, meanwhile, the spring is extruded, the positioning hole is driven to move to the position of the positioning rod along with continuous movement of the communication pipe, the spring rebounds and resets to push the positioning rods on the two sides to be inserted into the positioning hole, and therefore the communication pipe is installed, and only the ejector rod needs to be pushed upwards when the communication pipe is disassembled. And at the moment, the ejector blocks make contact with the stress blocks and extrude the stress blocks to move towards the left side and the right side, the stress blocks move to drive the connecting plates to move so as to drive the positioning rods to move to be separated from the inner walls of the positioning holes, and then the communicating pipes are pulled out of the sintering pallet.

Description

Technical Field

[0001] This utility model belongs to the field of sintering technology in the metallurgical industry, specifically, it relates to a sintering flue gas leakage detection device. Background Technology

[0002] Sintering, the process of transforming powdered materials into a dense body, is a traditional technology. It has long been used to produce ceramics, powder metallurgy, refractories, and ultra-high temperature materials. Generally, after powder is shaped, the resulting dense body through sintering is a polycrystalline material whose microstructure consists of crystals, glassy components, and pores. The sintering process directly affects the grain size, pore size, and grain boundary shape and distribution within the microstructure, thus influencing the material's properties.

[0003] A search of CN207300508U reveals a sintering flue gas leakage detection device. This device inserts a test tube with small exhaust holes through the sintering trolley, ensuring uniform airflow between the sintering trolley and the air box. It allows for timely and accurate detection of flue gas in the sintering equipment using a flue gas analyzer. The leakage rate between the sintering trolley and the air box is calculated using the test data and a leakage detection method, effectively helping workers to take timely measures to reduce leakage and decrease sintering power consumption. The test tube, ball valve, and probe are connected by threads to ensure airtight connections and reduce interference from ambient air on the test data.

[0004] One end of the test sample tube in the testing device is connected to one side of the sintering trolley by welding. This connection method is rather troublesome, and once the connection is completed, it cannot be removed, making it inconvenient for staff to use.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To address the technical problem that one end of the test sample tube in the current testing device is connected to one side of the sintering trolley by welding, which is cumbersome and cannot be removed after connection, making it inconvenient for operators, the basic concept of this utility model is as follows:

[0007] A sintering flue gas leakage detection device, including a wind box;

[0008] A sintering trolley is mounted on top of the air box, and an installation mechanism is provided on the sintering trolley. The installation mechanism includes a sealing mechanism and a connecting pipe.

[0009] The sintering trolley has a through hole on its outer wall, and the connecting pipe is movably inserted through the inner wall of the through hole. The connecting pipe also has a connecting hole on its outer wall and a positioning hole on its other outer wall. A fixing block is fixedly connected to the outer wall of the sintering trolley, and a sliding hole is formed on the outer wall of the fixing block. A spring is fixedly connected to the inner wall of the sliding hole, and a positioning rod is fixedly connected to the end of the spring away from the inner wall of the sliding hole. A connecting plate is fixedly connected to the bottom of the outer wall of the positioning rod, and a force-bearing block is fixedly connected to the end of the connecting plate away from the positioning rod. A fixing plate is fixedly connected to the outer wall of the air box, and a through groove is formed at the top of the fixing plate. A top rod is slidably arranged on the inner wall of the through groove, and a top block is fixedly connected to the top of the top rod.

[0010] In a preferred embodiment of the present invention, the sealing mechanism includes a threaded sleeve fixedly connected to the outer wall of the sintering trolley, a sealing groove is provided on the inner wall of the threaded sleeve, a sealing ring is fixedly connected to the inner wall of the sealing groove, and a threaded sealing sleeve is threadedly connected to the outer wall of the threaded sleeve.

[0011] In a preferred embodiment of this utility model, there are two positioning holes and two positioning rods, and the positioning holes and positioning rods are symmetrically distributed on the connecting pipe and the sintering trolley.

[0012] In a preferred embodiment of this utility model, the positioning rod has a first inclined surface at the end away from the spring, and the outer wall of the positioning rod fits snugly against the inner wall of the positioning hole.

[0013] In a preferred embodiment of this utility model, the force-bearing block has a second inclined surface at the end away from the connecting plate, and the outer wall of the top block has a slope, and the two fit together properly.

[0014] In a preferred embodiment of this utility model, there are two threaded sleeves and two threaded sealing sleeves, which are symmetrically distributed on the left and right sides of the through hole opened on the outer wall of the sintering trolley.

[0015] In a preferred embodiment of this utility model, the outer wall of the sealing ring is larger than the inner wall of the threaded sleeve, and the sealing ring is made of rubber.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] In this invention, the connecting tube is first passed through the through hole on the sintering trolley. The connecting tube then passes through the other side of the sintering trolley, and one end of the connecting tube contacts and presses against the positioning rod. The pressed positioning rod moves to the left and right, pressing against the spring. As the connecting tube continues to move, it moves the positioning hole to the position of the positioning rod. The spring then rebounds and resets, pushing the positioning rods on both sides into the positioning hole, thus completing the installation of the connecting tube. For disassembly, simply push the top rod upwards, causing the top block to move upwards. The top block then contacts and presses against the force-bearing block, moving it to the left and right. The movement of the force-bearing block moves the connecting plate, causing the positioning rod to move away from the inner wall of the positioning hole. Finally, the connecting tube can be pulled out of the sintering trolley.

[0018] In this invention, when no connecting pipe is used for testing, a threaded sealing sleeve can be spirally connected to the outer wall of the threaded sleeve, thereby sealing the through holes on both sides. At the same time, a sealing ring is provided inside the threaded sleeve. When the connecting pipe is inserted into it, its outer wall will squeeze the sealing ring. Due to the elasticity of its rubber material, the sealing ring will squeeze against the outer wall of the connecting pipe in the opposite direction, thus sealing the connection between the connecting pipe and the through hole and preventing air leakage from affecting the accuracy of the test data.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a side view of the present invention.

[0023] Figure 3 This is a cross-sectional view of the separation structure of the installation mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the sealing mechanism of this utility model.

[0025] In the diagram: 1. Bellows; 2. Sintering trolley; 31. Installation mechanism; 311. Connecting pipe; 312. Connecting hole; 313. Positioning hole; 314. Fixing block; 315. Spring; 316. Positioning rod; 317. Connecting plate; 318. Force-bearing block; 319. Fixing plate; 3110. Top rod; 3111. Top block; 32. Sealing mechanism; 321. Threaded sleeve; 322. Sealing groove; 323. Sealing ring; 324. Threaded sealing sleeve. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0027] like Figures 1 to 4 As shown, a sintering flue gas leakage detection device includes a wind box 1, a sintering trolley 2 mounted on top of the wind box 1, an installation mechanism 31 mounted on the sintering trolley 2, a sealing mechanism 32 mounted in the installation mechanism 31, and a connecting pipe 311. A through hole is formed in the outer wall of the sintering trolley 2, and the outer wall of the connecting pipe 311 is movably inserted through the inner wall of the through hole. A connecting hole 312 is formed in the outer wall of the connecting pipe 311, and a positioning hole 313 is formed on the other side of the outer wall of the connecting pipe 311. A fixing block 31 is fixedly connected to the outer wall of the sintering trolley 2. 4. A sliding hole is provided on the outer wall of the fixing block 314. A spring 315 is fixedly connected to the inner wall of the sliding hole. A positioning rod 316 is fixedly connected to the end of the spring 315 away from the inner wall of the sliding hole. A connecting plate 317 is fixedly connected to the bottom of the outer wall of the positioning rod 316. A force-bearing block 318 is fixedly connected to the end of the connecting plate 317 away from the positioning rod 316. A fixing plate 319 is fixedly connected to the outer wall of the wind box 1. A through groove is provided at the top of the fixing plate 319. A top rod 3110 is slidably provided on the inner wall of the through groove. A top block 3111 is fixedly connected to the top of the top rod 3110.

[0028] Furthermore, there are two positioning holes 313 and two positioning rods 316. The positioning holes 313 and the positioning rods 316 are symmetrically distributed on the connecting pipe 311 and the sintering trolley 2, so that the left and right sides of the connecting pipe 311 can be uniformly locked at the same time to improve the installation stability of the connecting pipe 311.

[0029] Furthermore, the positioning rod 316 has a first inclined surface at the end away from the spring 315. The outer wall of the positioning rod 316 fits snugly against the inner wall of the positioning hole 313. The first inclined surface allows it to be squeezed by the connecting pipe 311, which facilitates the installation operation.

[0030] Furthermore, the force-bearing block 318 has a second inclined surface at the end away from the connecting plate 317, and the outer wall of the top block 3111 has a slope. The two fit together properly, and the top block 3111 can squeeze through the second inclined surface to facilitate disassembly.

[0031] The sealing mechanism 32 includes a threaded sleeve 321 fixedly connected to the outer wall of the sintering trolley 2. A sealing groove 322 is provided on the inner wall of the threaded sleeve 321. A sealing ring 323 is fixedly connected to the inner wall of the sealing groove 322. A threaded sealing sleeve 324 is threadedly connected to the outer wall of the threaded sleeve 321.

[0032] Furthermore, there are two threaded sleeves 321 and two threaded sealing sleeves 324. The threaded sleeves 321 and the threaded sealing sleeves 324 are symmetrically distributed on the left and right sides of the through hole opened on the outer wall of the sintering trolley 2, so that the two sides of the through hole can be sealed simultaneously.

[0033] Furthermore, the outer wall of the sealing ring 323 is larger than the inner wall of the threaded sleeve 321, and the sealing ring 323 is made of rubber. In this way, the sealing ring 323 can be squeezed by the outer wall of the connecting pipe 311, and then squeezed in the opposite direction to form a sealing effect.

[0034] The implementation principle of the sintering flue gas leakage detection device in this embodiment is as follows: First, the connecting pipe 311 is passed through the through hole on the sintering trolley 2. At this time, the connecting pipe 311 will pass through the other side of the sintering trolley 2. Then, one end of the connecting pipe 311 will contact and squeeze the positioning rod 316. The squeezed positioning rod 316 will move to the left and right sides. During the movement of the positioning rod 316, it will squeeze the spring 315. As the connecting pipe 311 continues to move, it will drive the positioning hole 313 to the position of the positioning rod 316. When the spring 315 returns to its original position, it pushes the positioning rods 316 on both sides into the positioning holes 313, thus completing the installation of the connecting pipe 311. When disassembling, simply push the top rod 3110 upward, thereby moving the top block 3111 upward. At this time, the top block 3111 will contact and squeeze the force block 318, moving it to the left and right sides. The movement of the force block 318 will drive the connecting plate 317 to move, thereby moving the positioning rod 316 to move away from the inner wall of the positioning hole 313. Then, the connecting pipe 311 can be pulled out of the sintering trolley 2.

[0035] When the connecting pipe 311 is not used for testing, the threaded sealing sleeve 324 can be screwed onto the outer wall of the threaded sleeve 321 to seal the through holes on both sides. At the same time, the threaded sleeve 321 is provided with a sealing ring 323. When the connecting pipe 311 is inserted into it, its outer wall will squeeze the sealing ring 323. Due to the elasticity of its rubber material, the sealing ring 323 is squeezed against the outer wall of the connecting pipe 311 in the opposite direction, thus sealing the connection between the connecting pipe 311 and the through hole and preventing air leakage from affecting the accuracy of the test data.

Claims

1. A sintering flue gas leakage detection device, comprising a wind box (1); The sintering trolley (2) located at the top of the air box (1) is characterized in that, The sintering trolley (2) is provided with an installation mechanism (31), and the installation mechanism (31) is provided with a sealing mechanism (32). The installation mechanism (31) includes a connecting pipe (311): The sintering trolley (2) has a through hole on its outer wall. The connecting pipe (311) is movably inserted through the inner wall of the through hole. The connecting pipe (311) has a connecting hole (312) on its outer wall. The connecting pipe (311) has a positioning hole (313) on its other outer wall. A fixing block (314) is fixedly connected to the outer wall of the sintering trolley (2). The fixing block (314) has a sliding hole on its outer wall. A spring (315) is fixedly connected to the inner wall of the sliding hole. The spring (315) is away from the sliding hole. A positioning rod (316) is fixedly connected to one end of the inner wall. A connecting plate (317) is fixedly connected to the bottom end of the outer wall of the positioning rod (316). A force-bearing block (318) is fixedly connected to the end of the connecting plate (317) away from the positioning rod (316). A fixing plate (319) is fixedly connected to the outer wall of the bellows (1). A through groove is opened at the top of the fixing plate (319). A top rod (3110) is slidably arranged on the inner wall of the through groove. A top block (3111) is fixedly connected to the top of the top rod (3110).

2. The sintering flue gas leakage detection device according to claim 1, characterized in that, The sealing mechanism (32) includes a threaded sleeve (321) fixedly connected to the outer wall of the sintering trolley (2), a sealing groove (322) is provided on the inner wall of the threaded sleeve (321), a sealing ring (323) is fixedly connected to the inner wall of the sealing groove (322), and a threaded sealing sleeve (324) is threadedly connected to the outer wall of the threaded sleeve (321).

3. The sintering flue gas leakage detection device according to claim 1, characterized in that, The number of positioning holes (313) and positioning rods (316) are two each, and the positioning holes (313) and positioning rods (316) are symmetrically distributed on the connecting pipe (311) and the sintering trolley (2).

4. The sintering flue gas leakage detection device according to claim 1, characterized in that, The positioning rod (316) has a first inclined surface at the end away from the spring (315), and the outer wall of the positioning rod (316) fits snugly against the inner wall of the positioning hole (313).

5. The sintering flue gas leakage detection device according to claim 1, characterized in that, The force-bearing block (318) has a second inclined surface at the end away from the connecting plate (317), and the top block (3111) has a slope on its outer wall, and the two fit together properly.

6. The sintering flue gas leakage detection device according to claim 2, characterized in that, The number of threaded sleeves (321) and threaded sealing sleeves (324) are two each. The threaded sleeves (321) and threaded sealing sleeves (324) are symmetrically distributed on the left and right sides of the through hole opened on the outer wall of the sintering trolley (2).

7. The sintering flue gas leakage detection device according to claim 2, characterized in that, The outer wall of the sealing ring (323) is larger than the inner wall of the threaded sleeve (321), and the sealing ring (323) is made of rubber.

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