Fire spraying device for melting furnace

Abstract

The utility model provides a fire spitting device for melting furnace, including fire spitting unit and filter unit, the filter unit includes two sets of oppositely arranged mounting disc, one set of mounting disc is communicated with the fire spitting unit through the oil pipe, the other set of mounting disc is connected with the oil supply device through the oil pipe, the mounting disc is provided with through hole, and the oil supply device is connected with the oil supply device through the oil pipe. A mounting seat is arranged between the two groups of mounting discs, two groups of mounting holes are formed in the mounting seat, a filtering piece is arranged in one group of mounting holes, the other group of mounting holes are aligned with the through hole, the two groups of mounting discs are connected through a fastening mechanism, and the fastening mechanism drives the two groups of mounting discs to be folded to clamp and fix the mounting seat. According to the flaming device, oil supply and flaming do not need to be paused for a long time when the filtering piece is cleaned, the situation that the temperature in the furnace is reduced due to the fact that the oil supply and flaming pause time is too long is effectively prevented, and energy waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of melting furnaces, in particular to a flame spraying device used for melting furnaces. Background Art

[0002] Oil-fired melting furnace is a commonly used equipment in the metal smelting industry. It can be used for smelting, casting and hot-dip galvanizing of non-ferrous metals such as aluminum, zinc and copper. It uses light diesel or heavy oil as fuel, which is clean and safe. The flame spraying device of the melting furnace needs to filter the fuel through a filter during use. In order to ensure the filtering effect and oil passing efficiency, it is necessary to ensure that the filter device is unobstructed. Once the filter device is blocked, it needs to be cleaned.

[0003] For example, the Chinese utility model patent No. 201120444245.5 provides a melting furnace flame spraying device, in which an oil filter device is provided on the oil pipeline, and an oil filter screen and a cleaning valve are provided in the oil filter device. During the oil supply process, the oil is filtered through the oil filter screen to ensure the combustion effect. However, if the oil filter screen of the existing melting furnace flame spraying device is blocked during the flame spraying process, the flame spraying needs to be suspended for a long time when the oil filter screen is replaced, which causes the temperature in the melting furnace to drop and needs to be reheated, resulting in increased energy waste. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model proposes a flame spraying device for a melting furnace to solve the technical problem that if the oil filter screen of the existing melting furnace flame spraying device mentioned in the above background technology is blocked during the flame spraying process, the flame spraying needs to be suspended for a long time when the oil filter screen is replaced, thereby causing the temperature in the melting furnace to drop and need to be reheated, resulting in increased energy waste.

[0005] To achieve the above object, the utility model provides the following technical solution: a flame spraying device for a melting furnace, comprising a flame spraying unit and a filtering unit, wherein the filtering unit comprises:

[0006] There are two groups of mounting plates arranged opposite to each other, one group of mounting plates is connected to the flame spraying unit through an oil pipe, and the other group of mounting plates is connected to the oil supply device through an oil pipe, and through holes are opened on the mounting plates;

[0007] A mounting seat is rotatably disposed along its axis between the two groups of mounting plates, and the mounting seat is provided with two groups of mounting holes, wherein one group of the mounting holes has a filter disposed therein, and the other group of the mounting holes is aligned with the through holes; and

[0008] The fastening mechanism is connected to the two groups of mounting plates to drive the two groups of mounting plates to close and clamp and fix the mounting seat.

[0009] In a preferred embodiment, a mounting sleeve is provided at the center of the two groups of mounting plates, and the mounting seat is rotatably mounted on the mounting sleeve along its axis.

[0010] In a preferred embodiment, the fastening mechanism includes a bidirectional screw, and both ends of the bidirectional screw are respectively threadedly connected to the two sets of mounting sleeves.

[0011] In a preferred embodiment, the filter element comprises:

[0012] A filter sleeve is slidably disposed in the mounting hole along its axis; and

[0013] The filter screens are provided in multiple groups and are arranged at intervals in the filter sleeve.

[0014] In a preferred embodiment, the outer circumferential surface of the filter sleeve is provided with a positioning ridge, and a positioning groove is provided in the mounting hole along its axis, and the positioning ridge is slidably engaged in the positioning groove.

[0015] In a preferred embodiment, a sealing gasket is fixedly provided on one side of the two groups of mounting plates. The sealing gasket is disposed in the mounting hole and abuts against two ends of the filter sleeve.

[0016] In a preferred embodiment, one group of the mounting disks is provided with a positioning rod, and a wedge-shaped block is provided at the end of the positioning rod, and another group of the mounting disks is provided with a positioning frame, and a limiting groove is provided on the positioning frame, and the positioning rod is slidably inserted into the positioning frame, and the wedge-shaped block is slidably clamped in the limiting groove.

[0017] In a preferred embodiment, a stop block is provided at the end of the mounting seat, a limiting hole is provided on the mounting plate, and the stop block is clamped in the limiting hole.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] When the device is in use, the oil is filtered through the filter element. When the filter element is blocked during the flame spraying process, the unblocked filter element can be placed in an idle group of mounting holes and the oil supply can be suspended. The two groups of mounting discs can be moved in opposite directions through the fastening mechanism, so that the two groups of mounting discs release the clamping and fixing of the mounting seats. The mounting seats are then rotated to align the newly installed filter element with the two groups of oil pipes. The two groups of mounting discs are then closed and clamped and fixed to the mounting seats through the fastening mechanism, and the oil supply can be continued. The blocked group of filters can then be cleaned without suspending the oil supply and flame spraying for a long time, which effectively prevents the temperature in the furnace from dropping due to the excessively long suspension time of the oil supply and flame spraying, thereby reducing the waste of energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a flame spraying device for a melting furnace provided by the utility model;

[0022] Figure 2 This is a cross-sectional view of an oil filter unit in a flame spraying device for a melting furnace according to the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of a disassembled oil filter unit in a flame spraying device for a melting furnace according to the utility model;

[0024] Reference numerals:

[0025] 101, mounting plate; 102, oil pipe; 103, sealing gasket; 104, through hole; 105, mounting sleeve;

[0026] 201, positioning rod; 202, wedge-shaped block; 203, positioning frame; 204, limiting groove;

[0027] 301, mounting seat; 302, mounting hole; 303, positioning groove;

[0028] 401, filter sleeve; 402, filter screen; 403, positioning ridge;

[0029] 501, bidirectional screw; 502, stop block; 503, limit hole;

[0030] 601. Flamethrower unit. DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0032] Example:

[0033] like Figure 1 , 3As shown, the utility model provides a flame spraying device for a melting furnace, including a flame spraying unit 601 and a filter unit, the filter unit including two groups of mounting discs 101 arranged opposite to each other, one group of mounting discs 101 is connected to the flame spraying unit 601 through an oil pipe 102, and the other group of mounting discs 101 is connected to an oil supply device through the oil pipe 102, a mounting seat 301 is rotatably arranged between the two groups of mounting discs 101 along their axes, a mounting sleeve 105 is arranged at the center of the two groups of mounting discs 101, the mounting seat 301 is rotatably sleeved on the mounting sleeve 105 along its axis, and two groups of mounting holes 302 are opened on the mounting seat 301.

[0034] When in use, the flamethrower device can be supplied with oil through an external oil supply device, and the oil can flow to the flamethrower unit 601 through one group of mounting holes 302 for flame spraying, and a through hole 104 is opened on the mounting plate 101, one group of mounting holes 302 is provided with a filter element, and another group of mounting holes 302 is aligned with the through hole 104, and the filter element includes a filter sleeve 401 slidably arranged in the mounting hole 302 along its axis, and a plurality of groups of filter nets 402 are arranged at intervals in the filter sleeve 401.

[0035] When the oil flows through the through hole 104, it is filtered through multiple groups of filter screens 402 to improve the combustion effect. A new filter element can be installed through the through hole 104. When the filter element is blocked during use, the mounting seat 301 is rotated to move the new filter element between the two groups of oil pipes 102, so that the filter element can be quickly replaced. The entire replacement process is convenient and quick, and there is no need to suspend the oil supply for a long time.

[0036] like Figure 1 , 3 As shown, in this embodiment, the outer circumferential surface of the filter sleeve 401 is provided with a positioning rib 403, and a positioning groove 303 is provided in the mounting hole 302 along its axis, and the positioning rib 403 is slidably clamped in the positioning groove 303. When the filter sleeve 401 is installed, the position of the filter sleeve 401 is positioned by the cooperation between the positioning rib 403 and the positioning groove 303, so that the filter sleeve 401 is prevented from moving after installation, thereby improving the installation stability of the filter sleeve 401.

[0037] like Figure 2 , 3 As shown, in this embodiment, the two sets of mounting plates 101 are connected by a fastening mechanism, and the fastening mechanism drives the two sets of mounting plates 101 to close and clamp the mounting seat 301. The fastening mechanism includes a bidirectional screw 501, and the two ends of the bidirectional screw 501 are respectively screwed to the two sets of mounting sleeves 105.

[0038] When the filter element needs to be replaced, the two sets of mounting plates 101 can be driven to move in opposite directions by rotating the bidirectional screw 501. Since a positioning rod 201 is provided on one set of mounting plates 101, a wedge-shaped block 202 is provided at the end of the positioning rod 201, and a positioning frame 203 is provided on the other set of mounting plates 101. A limiting groove 204 is provided on the positioning frame 203. The positioning rod 201 is slidably penetrated in the positioning frame 203, and the wedge-shaped block 202 is slidably clamped in the limiting groove 204. The movement directions of the two sets of mounting plates 101 are positioned by the cooperation of the positioning rod 201 and the positioning frame 203 to prevent the two sets of mounting plates 101 from rotating relative to each other. The movement range of the two sets of mounting plates 101 is limited by the cooperation of the wedge-shaped block 202 and the limiting groove 204. After the two sets of mounting plates 101 are opened, the unused filter element can be moved between the two sets of oil pipes 102 by rotating the mounting seat 301, and the position of the mounting seat 301 can be fixed by rotating it in the opposite direction.

[0039] like Figure 3 As shown, in this embodiment, a sealing gasket 103 is fixedly arranged on one side of the two sets of mounting disks 101. The sealing gasket 103 is arranged in the mounting hole 302 and abuts against the two ends of the filter sleeve 401. The two ends of the filter sleeve 401 are sealed by the sealing gasket 103 to prevent oil leakage. After the two sets of mounting disks 101 are opened, the sealing gasket 103 can be moved out of the mounting hole 302, so that the mounting seat 301 can be rotated conveniently.

[0040] like Figure 3 As shown, in this embodiment, a stopper 502 is provided at the end of the mounting seat 301, and a limiting hole 503 is provided on the mounting plate 101, and the stopper 502 is clamped in the limiting hole 503. When the two sets of mounting plates 101 are closed, the position of the mounting seat 301 is fixed by the cooperation of the stopper 502 and the limiting hole 503, so that the mounting seat 301 is prevented from rotating, thereby improving the stability of the filter element installation. When the two sets of mounting plates 101 are opened, the stopper 502 can be separated from the limiting hole 503.

[0041] Specific usage and beneficial effects of the utility model:

[0042] When the device is in use, the oil is filtered through the filter element. When the filter element is blocked during the flame spraying process, the unblocked filter element can be placed in an idle group of mounting holes 302 and the oil supply can be suspended. The two-way screw 501 is rotated to make the two groups of mounting disks 101 move in opposite directions, so that the two groups of mounting disks 101 release the clamping and fixing of the mounting seat 301, and then the mounting seat 301 is rotated to align the newly installed filter element with the two groups of oil pipes 102. Finally, the two-way screw 501 is rotated in the opposite direction to make the two groups of mounting disks 101 close and clamp the mounting seat 301, so that the oil supply can be continued, and then the blocked group of filters can be cleaned. There is no need to suspend the oil supply and flame spraying for a long time, which effectively prevents the temperature in the furnace from dropping due to the long suspension time of oil supply and flame spraying, and reduces the waste of energy.

[0043] The basic principle and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A flame spraying device for a melting furnace, characterized in that: It comprises a flame spraying unit (601) and a filtering unit, wherein the filtering unit comprises: Two groups of mounting plates (101) are arranged opposite to each other, one group of mounting plates (101) is connected to the flame spraying unit (601) through an oil pipe (102), and the other group of mounting plates (101) is connected to the oil supply device through the oil pipe (102), and the mounting plates (101) are provided with through holes (104); A mounting seat (301) is rotatably disposed along its axis between the two groups of mounting plates (101), and the mounting seat (301) is provided with two groups of mounting holes (302), wherein one group of the mounting holes (302) is provided with a filter element, and the other group of the mounting holes (302) is aligned with the through holes (104); and The fastening mechanism is connected to the two groups of mounting plates (101) to drive the two groups of mounting plates (101) to close together and clamp and fix the mounting seat (301).

2. A flame spraying device for a melting furnace according to claim 1, characterized in that: A mounting sleeve (105) is provided at the center of the two groups of mounting plates (101), and the mounting seat (301) is rotatably mounted on the mounting sleeve (105) along its axis.

3. A flame spraying device for a melting furnace according to claim 2, characterized in that: The fastening mechanism comprises a bidirectional screw rod (501), and two ends of the bidirectional screw rod (501) are respectively threadedly connected to the two sets of mounting sleeves (105).

4. A flame spraying device for a melting furnace according to claim 1, characterized in that: The filter element comprises: A filter sleeve (401) is slidably disposed in the mounting hole (302) along its axis; and The filter screens (402) are provided in multiple groups and are arranged at intervals in the filter sleeve (401).

5. A flame spraying device for a melting furnace according to claim 4, characterized in that: The outer circumferential surface of the filter sleeve (401) is provided with a positioning ridge (403), and a positioning groove (303) is provided in the mounting hole (302) along its axis, and the positioning ridge (403) is slidably locked in the positioning groove (303).

6. A flame spraying device for a melting furnace according to claim 4, characterized in that: A sealing gasket (103) is fixedly arranged on one side of the two sets of mounting plates (101); the sealing gasket (103) is arranged in the mounting hole (302) and abuts against two ends of the filter sleeve (401).

7. The flame spraying device for a melting furnace according to claim 1, characterized in that: One group of the mounting plates (101) is provided with a positioning rod (201), and a wedge-shaped clamping block (202) is provided at the end of the positioning rod (201); another group of the mounting plates (101) is provided with a positioning frame (203), and a limiting groove (204) is provided on the positioning frame (203); the positioning rod (201) is slidably inserted into the positioning frame (203), and the wedge-shaped clamping block (202) is slidably clamped in the limiting groove (204).

8. The flame spraying device for a melting furnace according to claim 1, characterized in that: A stop block (502) is provided at the end of the mounting seat (301), a limiting hole (503) is provided on the mounting plate (101), and the stop block (502) is clamped in the limiting hole (503).

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