Anti-corrosion spraying device in waste heat boiler in waste acid regeneration process

Abstract

The utility model discloses an anti-corrosion spraying device in a waste heat boiler in a waste acid regeneration process, which comprises a spraying head and a protective cover, the spraying head and the protective cover are fixedly connected through a connecting piece, the connecting piece comprises a one-way rack and a positioning block, the positioning block and the protective cover are welded and fixed, and the one-way rack is fixedly connected with the one-way rack. The connecting piece further comprises a clamping groove and a clamping mechanism, the clamping groove is formed in the end of the spraying head, and the inner diameter of the clamping groove is matched with the outer diameter of the positioning block. The one-way rack can be locked through the limiting clamping teeth, the protective cover and the spraying head can be positioned through the positioning block and the clamping groove, and when the one-way rack and the limiting clamping teeth need to be separated, the limiting clamping teeth and the one-way rack can be rapidly separated by pulling the sliding rod verification L-shaped plate, so that the one-way rack and the spraying head can be rapidly separated. Therefore, the protective cover and the spraying head can be quickly disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler anti-corrosion spraying, in particular to an anti-corrosion spraying device in a waste heat boiler in a waste acid regeneration process. Background Art

[0002] In the existing technology, when waste acid is regenerated, waste heat boilers are used to recover the heat generated by the combustion of combustible materials. In order to extend the service life of the waste heat boiler, it is necessary to spray anti-corrosion coatings inside the waste heat boiler to prevent oxidation and erosion on the surface of the waste heat boiler. By spraying anti-corrosion coatings, the wear resistance and corrosion resistance of the waste heat boiler are improved.

[0003] After searching, the Chinese patent application number 202023157316.1 discloses a boiler anti-corrosion and anti-wear spray device, including a spray gun, a handle, a switch button and a nozzle. The bottom end of the spray gun is fixedly connected to the handle, and a switch button is raised on one side of the surface of the handle. A nozzle extends from the front end of the spray gun, and an inner stop ring is raised on the surface of the nozzle body behind the nozzle. The inner stop ring is embedded upward between the rubber inner rings of the rubber tube, and the rubber tube is sleeved on the outside of the nozzle body. The rubber tube is fixedly connected to the rear end of the hood of the wind shield.

[0004] The boiler anti-corrosion and anti-wear spray device in the above patent has the following shortcomings: although the rubber inner ring and the inner stop ring on the nozzle surface can be fixed by interlocking, since the rubber inner ring is relatively soft in material, when the wind force is strong, the rubber inner ring is easily deformed, resulting in separation between it and the inner stop ring. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose an anti-corrosion spraying device in a waste heat boiler in a waste acid regeneration process.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A corrosion-resistant spraying device for a waste heat boiler in a waste acid regeneration process includes a spray head and a protective cover. The spray head and the protective cover are fixedly connected by a connecting piece. The connecting piece includes a one-way rack and a positioning block. The positioning block and the protective cover are welded and fixed, and the one-way rack and the positioning block are welded and fixed. The connecting piece also includes a slot and a positioning mechanism. The slot is opened at the end of the spray head, and the inner diameter of the slot and the outer diameter of the positioning block are adapted to each other. The one-way rack is fixed by the positioning mechanism.

[0008] As a further solution of the present invention: the locking mechanism includes a sliding rod and an L-shaped plate, the L-shaped plate is welded to the top of the spray head, and the sliding rod is movably connected to the inner wall of the through hole opened at the top of the L-shaped plate, and a limiting locking tooth adapted to the one-way rack is welded at the bottom of the sliding rod, and a spring is sleeved on the outer wall of the sliding rod.

[0009] As a further solution of the present invention: the bottom of the spray head is threadedly connected to a delivery pipe, and one end of the delivery pipe is threadedly connected to a joint.

[0010] As a further solution of the present invention: brackets are movably connected to both sides of the spray head through rotating shafts, and connecting rods are welded to the bottom of the brackets.

[0011] As a further solution of the present invention: a fixing plate is welded to the outer wall of the connecting rod, and a driving rod is movably connected to a through hole opened on the surface of the fixing plate, a spring is clamped between the inner wall of one side of the driving rod and the outer wall of one side of the fixing plate, and a connecting frame is welded to one end of the driving rod, and a connecting rod is movably connected between the connecting frame and the conveying pipe.

[0012] As a further solution of the present invention: one end of the spring is respectively clamped to the top outer wall of the L-shaped plate and the top inner wall of the slide rod.

[0013] As a further solution of the present invention: a protective sleeve is sleeved on the circumferential outer wall of the connecting rod.

[0014] Compared with the prior art, the present invention provides an anti-corrosion spraying device for waste heat boiler in a waste acid regeneration process, which has the following beneficial effects:

[0015] The one-way rack can be locked by setting a limit tooth, and the protective cover and the spray head can be positioned using the positioning block and the slot. When the one-way rack and the limit tooth need to be separated, the limit tooth and the one-way rack can be quickly disengaged by pulling the slide bar verification L-shaped plate, thereby realizing quick disassembly and assembly between the protective cover and the spray head.

[0016] .By providing a connecting rod, the spraying angle of the nozzle of the spray head can be adjusted after the driving rod is pulled or pushed.

[0017] .The provision of a protective sleeve and a connecting rod facilitates extending the nozzle of the spray head into the interior of the waste heat boiler for spraying, thereby increasing the spraying range.

[0018] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the overall structure of an anti-corrosion spraying device in a waste heat boiler in a waste acid regeneration process proposed by the present invention;

[0020] Figure 2 This is a side structural diagram of an anti-corrosion spraying device in a waste heat boiler in a waste acid regeneration process proposed by the present invention;

[0021] Figure 3 This is a schematic diagram of the overall structure of the spray assembly of an anti-corrosion spray device in a waste heat boiler in a waste acid regeneration process proposed by the present invention;

[0022] Figure 4 This is a schematic diagram of the exploded structure of a spray assembly of an anti-corrosion spray device in a waste heat boiler in a waste acid regeneration process proposed by the present invention;

[0023] Figure 5 This is a schematic diagram of the connecting structure of the connectors of the anti-corrosion spraying device in the waste heat boiler in the waste acid regeneration process proposed by the utility model.

[0024] In the figure: spray head 1; delivery pipe 2; fixing plate 3; spring 4; protective cover 5; connecting rod 6; protective cover 7; bracket 8; connecting frame 9; driving rod 10; connecting rod 11; one-way rack 12; positioning block 13; sliding rod 14; spring 15; L-shaped plate 16; limit tooth 17; slot 18. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1

[0027] An anti-corrosion spraying device in a waste heat boiler in a waste acid regeneration process, such as Figures 1 to 5 As shown, it includes a spray head 1 and a protective cover 7, and the spray head 1 and the protective cover 7 are fixedly connected by a connecting piece, the connecting piece includes a one-way rack 12 and a positioning block 13, the positioning block 13 and the protective cover 7 are welded and fixed, and the one-way rack 12 and the positioning block 13 are welded and fixed, the connecting piece also includes a slot 18 and a locking mechanism, the slot 18 is opened at the end of the spray head 1, and the inner diameter of the slot 18 and the outer diameter of the positioning block 13 are adapted to each other, and the one-way rack 12 is fixed by the locking mechanism;

[0028] By providing a spray head 1, anti-corrosion paint can be sprayed on the waste heat boiler, and the waste heat boiler can be treated with anti-corrosion paint. The protective cover 7 can protect the nozzle of the spray head 1. When it is necessary to assemble the protective cover 7 and the spray head 1, the positioning block 13 is inserted into the slot 18 to achieve the positioning of the protective cover 7 relative to the spray head 1. The one-way rack 12 can be fixed by providing a positioning mechanism, thereby ensuring the stability of the installation of the protective cover 7 relative to the spray head 1.

[0029] Furthermore, the locking mechanism includes a slide rod 14 and an L-shaped plate 16, the L-shaped plate 16 is welded to the top of the spray head 1, and the slide rod 14 is slidably connected to the inner wall of the through hole opened at the top of the L-shaped plate 16, and a limiting tooth 17 adapted to the one-way rack 12 is welded at the bottom of the slide rod 14, and a spring 15 is sleeved on the outer wall of the slide rod 14, and the two ends of the spring 15 are respectively clamped to the outer wall of the top of the L-shaped plate 16 and the inner wall of the top of the slide rod 14;

[0030] When the positioning block 13 slides along the slot 18, the one-way rack 12 slides unidirectionally along the bottom of the limiting tooth 17. When the positioning block 13 and the slot 18 fit together, the limiting tooth 17 limits the one-way rack 12, thereby ensuring the relative stability between the one-way rack 12 and the limiting tooth 17.

[0031] Furthermore, the bottom of the spray head 1 is threadedly connected to a delivery pipe 2, and one end of the delivery pipe 2 is threadedly connected to a joint;

[0032] When it is necessary to spray anti-corrosion paint on the waste heat boiler, connect the joint at one end of the delivery pipe 2 and the hose, connect the end of the hose away from the delivery pipe 2 and the pump body, use the pump body to pressurize the anti-corrosion paint and spray it through the nozzle at one end of the spray head 1 for spraying.

[0033] Furthermore, the two sides of the spray head 1 are rotatably connected to brackets 8 via a rotating shaft, and a connecting rod 6 is welded to the bottom of the bracket 8, and a protective sleeve 5 is sleeved on the outer wall of the circumference of the connecting rod 6;

[0034] When spraying is required, the protective cover 5 is held by hand to facilitate control of the spray head 1 so that the spray head 1 can spray the waste heat boiler.

[0035] Furthermore, a fixing plate 3 is welded to the outer wall of the connecting rod 6, and a driving rod 10 is slidably connected to a through hole opened on the surface of the fixing plate 3. A spring 4 is clamped between the inner wall of one side of the driving rod 10 and the outer wall of one side of the fixing plate 3. A connecting frame 9 is welded to one end of the driving rod 10, and a connecting rod 11 is rotatably connected between the connecting frame 9 and the conveying pipe 2.

[0036] When the spraying angle of the spray head 1 needs to be adjusted during spraying, one end of the driving rod 10 is pulled or pushed, so that the spray head 1 is driven by the connecting rod 11 to rotate a certain angle relative to the bracket 8, thereby adjusting the spraying angle of the spray head 1.

[0037] Working principle: First, connect one end of the delivery pipe 2 through a joint and a hose, then hold the protective cover 5 with your hand, and when the waste heat boiler needs to be sprayed, point the nozzle of the spray head 1 at the waste heat boiler for spraying. When the spraying angle of the spray head 1 needs to be adjusted, pull or push one end of the driving rod 10, so that the spray head 1 is driven by the connecting rod 11 to rotate a certain angle relative to the bracket 8, thereby realizing the adjustment of the spraying angle of the spray head 1.

[0038] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-corrosion spraying device for a waste heat boiler in a waste acid regeneration process, comprising a spraying head (1) and a protective cover (7), characterized in that: The spray head (1) and the protective cover (7) are fixedly connected via a connecting piece, wherein the connecting piece comprises a one-way rack (12) and a positioning block (13), wherein the positioning block (13) and the protective cover (7) are welded and fixed, and the one-way rack (12) and the positioning block (13) are welded and fixed, and the connecting piece further comprises a slot (18) and a locking mechanism, wherein the slot (18) is provided at the end of the spray head (1), and the inner diameter of the slot (18) and the outer diameter of the positioning block (13) are mutually adapted, and the one-way rack (12) is fixed by the locking mechanism.

2. The anti-corrosion spraying device in the waste heat boiler in the waste acid regeneration process according to claim 1 is characterized in that: The locking mechanism includes a slide bar (14) and an L-shaped plate (16), wherein the L-shaped plate (16) is welded to the top of the spray head (1), and the slide bar (14) is movably connected to the inner wall of the through hole opened at the top of the L-shaped plate (16), and a limiting locking tooth (17) adapted to the one-way rack (12) is welded to the bottom of the slide bar (14), and a spring (15) is sleeved on the outer wall of the slide bar (14).

3. The anti-corrosion spraying device in the waste heat boiler in the waste acid regeneration process according to claim 2 is characterized in that: The bottom of the spray head (1) is threadedly connected to a delivery pipe (2), and one end of the delivery pipe (2) is threadedly connected to a joint.

4. The anti-corrosion spraying device in the waste heat boiler in the waste acid regeneration process according to claim 3 is characterized in that: Both sides of the spray head (1) are movably connected to brackets (8) via rotating shafts, and a connecting rod (6) is welded to the bottom of the bracket (8).

5. The anti-corrosion spraying device in the waste heat boiler in the waste acid regeneration process according to claim 4 is characterized in that: A fixing plate (3) is welded to the outer wall of the connecting rod (6), and a through hole provided on the surface of the fixing plate (3) is movably connected to a driving rod (10), a spring (4) is clamped between the inner wall of one side of the driving rod (10) and the outer wall of one side of the fixing plate (3), and a connecting frame (9) is welded to one end of the driving rod (10), and a connecting rod (11) is movably connected between the connecting frame (9) and the conveying pipe (2).

6. The anti-corrosion spraying device in the waste heat boiler in the waste acid regeneration process according to claim 5, characterized in that: The two ends of the spring (15) are respectively clamped on the top outer wall of the L-shaped plate (16) and the top inner wall of the slide rod (14).

7. The anti-corrosion spraying device in the waste heat boiler in the waste acid regeneration process according to claim 6 is characterized in that: The outer circumferential wall of the connecting rod (6) is sleeved with a protective sleeve (5).

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