Positioning and tensioning device of blast furnace plasma torch

Abstract

The utility model relates to a positioning and tensioning device of a blast furnace plasma torch, which comprises a blast furnace body, a tuyere small sleeve is arranged in the blast furnace body, a plasma torch body is arranged in the blast furnace body, and a positioning and tensioning mechanism is arranged outside the blast furnace body. The positioning and tensioning mechanism comprises a positioning cylinder, a clamping ring, a baffle, a sliding block, an extension arm, a first tensioning pull rod, a limiting cylinder, a second tensioning pull rod, a limiting block, a transverse plate, a clamping block and an extension rod. According to the positioning and tensioning device of the blast furnace plasma torch, firstly, the plasma torch body is sleeved with a positioning cylinder and a clamping ring, the positioning cylinder and the clamping ring are stably fixed through an expansion screw, at the moment, a second tensioning pull rod is pulled outwards, and when the specified length is reached, an extension rod is loosened, so that a clamping block is clamped into a clamping groove, and the second tensioning pull rod is fixed; and finally, the plasma torch body is inserted into the tuyere small sleeve through equipment such as a crane, and the second tensioning pull rod and the blast furnace body are fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace plasma torches, in particular to a positioning and tightening device for a blast furnace plasma torch. Background Art

[0002] The plasma torch (also known as a plasma generator or plasma heating system) is a special equipment developed based on this principle. The plasma torch generates high-temperature gas through an electric arc and can work in an oxidizing, reducing or inert environment. It can provide heat sources for industrial furnaces with various functions such as gasification, cracking, reaction, melting and smelting.

[0003] When installing the existing plasma torch, it is necessary to closely match the spherical crown surface of the plasma torch head with the spherical crown sealing processing surface of the front end of the tuyere sleeve to achieve the effect of preventing gas leakage. When installing the plasma torch body, there are installation deviations at various angles and positions between the spherical crown surface of the torch head and the spherical crown end surface of the front end of the tuyere sleeve, resulting in gaps in the spherical crown surface and a large positioning tolerance, which can easily cause gas leakage and gas poisoning of personnel, posing a safety hazard. Therefore, a positioning and tightening device for a blast furnace plasma torch is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a positioning and tightening device for a blast furnace plasma torch, which has the advantages of precise positioning and high safety, and solves the problems of installation deviations at various angles and positions between the spherical crown surface of the torch head and the spherical crown end surface of the front end of the tuyere sleeve when installing the plasma torch body, resulting in gaps on the spherical crown surface and large positioning tolerance, which can easily cause gas leakage, gas poisoning of personnel, and potential safety hazards.

[0005] To achieve the above object, the utility model provides the following technical solutions: a positioning and tightening device for a blast furnace plasma torch, comprising a blast furnace body, a tuyere sleeve is arranged inside the blast furnace body, a plasma torch body is arranged inside the blast furnace body, and a positioning and tightening mechanism is arranged outside the blast furnace body;

[0006] The positioning and tightening mechanism includes a positioning cylinder, a clamping ring, a baffle, a slider, an extension arm, a first tensioning rod, a limiting cylinder, a second tensioning rod, a limiting block, a cross plate, a blocking block and an extension rod. A positioning cylinder is arranged on the outside of the plasma torch body, a clamping ring is sleeved on the outside of the plasma torch body, two baffles are arranged inside the positioning cylinder, sliders are fixedly installed on opposite sides of the two baffles, two extension arms are arranged outside the positioning cylinder, the first tensioning rod is hinged on the outside of the extension arm, a limiting cylinder is fixedly installed on the right side of the first tensioning rod, a second tensioning rod is arranged inside the limiting cylinder, limiting blocks are arranged on the left and right sides of the second tensioning rod, a cross plate is movably installed inside the limiting block, blocking blocks are fixedly installed on opposite sides of the two cross plates, and extension rods are fixedly installed on opposite sides of the two cross plates.

[0007] Furthermore, the tuyere sleeve is sleeved on the outside of the plasma torch body, and the positioning tube and the clamping ring are connected by expansion screws.

[0008] Furthermore, two slide grooves are provided inside the positioning cylinder, and the sides of the two sliding blocks away from the baffle respectively extend into the two slide grooves.

[0009] Furthermore, the two extension arms are respectively hinged to the left sides of the two first tension rods, and the left and right sides of the two second tension rods are fixedly connected to limit blocks.

[0010] Furthermore, the two second tension rods are hinged to the left side of the blast furnace body on one side away from the two limiting cylinders, and two card slots are provided inside the second tension rods, and the two card blocks extend into the two card slots on one side away from the cross plate respectively.

[0011] Furthermore, a limiting spring is fixedly installed on the opposite sides of the two transverse plates, and a side of the limiting spring away from the transverse plate is connected to the inner wall of the limiting block.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The positioning and tightening device of the blast furnace plasma torch is provided with a tuyere sleeve, and the plasma torch body is inserted into the tuyere sleeve, so that the plasma torch body can heat the inside of the blast furnace body. By providing the positioning and tightening mechanism, the various structures of the positioning and tightening mechanism cooperate with each other to ensure that the plasma torch body is installed more stably and avoid the occurrence of a gap between the plasma torch body and the tuyere sleeve.

[0014] 2. The positioning and tightening device of the blast furnace plasma torch is provided with a positioning cylinder, and the plasma torch body passes through the positioning cylinder and is connected with the expansion screw through the engagement, so as to preliminarily fix the plasma torch body; by providing a baffle, the baffle is driven by the slider to slide inside the positioning cylinder, and the internal area of ​​the positioning cylinder can be adjusted to adapt to plasma torch bodies of different sizes; by providing an extension arm, it is convenient to fix the first tensioning rod; by providing a limiting cylinder, the second tensioning rod is made to slide inside the limiting cylinder, so as to adjust the length of the second tensioning rod, which is convenient for connection with the blast furnace body; by providing a limiting block, the cross plate is limited, and the user pulls the extension rod outward to extend the second tensioning rod to the specified length. At this time, the extension rod is released to allow the limiting spring to drive the card block to fit into the card slot. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 2 It is a partial cross-sectional schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the local positioning tensioning mechanism of the utility model;

[0018] Figure 4 For this utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0019] In the figure: 1 blast furnace body, 2 tuyere small sleeve, 3 plasma torch body, 4 positioning tensioning mechanism, 401 positioning cylinder, 402 clamping ring, 403 baffle, 404 slider, 405 extension arm, 405 first tensioning rod, 407 limiting cylinder, 408 second tensioning rod, 409 limiting block, 410 cross plate, 411 clamping block, 412 extension rod, 5 limiting spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 A positioning and tightening device for a blast furnace plasma torch comprises a blast furnace body 1, a tuyere sleeve 2 is arranged inside the blast furnace body 1, a plasma torch body 3 is arranged inside the blast furnace body 1, and a positioning and tightening mechanism 4 is arranged outside the blast furnace body 1;

[0022] The positioning and tightening mechanism 4 includes a positioning cylinder 401, a clamping ring 402, a baffle 403, a slider 404, an extension arm 405, a first tensioning rod 406, a limiting cylinder 407, a second tensioning rod 408, a limiting block 409, a cross plate 410, a clamping block 411 and an extension rod 412. The outside of the plasma torch body 3 is provided with a positioning cylinder 401, the outside of the plasma torch body 3 is sleeved with a clamping ring 402, and the inside of the positioning cylinder 401 is provided with two baffles 403, and the sliders 404 are fixedly installed on the opposite sides of the two baffles 403. The positioning cylinder Two extension arms 405 are arranged on the outside of 401, and a first tensioning rod 406 is hinged on the outside of the extension arm 405. A limiting cylinder 407 is fixedly installed on the right side of the first tensioning rod 406, and a second tensioning rod 408 is arranged inside the limiting cylinder 407. Limiting blocks 409 are arranged on the left and right sides of the second tensioning rod 408, and a horizontal plate 410 is movably installed inside the limiting block 409. A clamping block 411 is fixedly installed on the opposite side of the two horizontal plates 410, and an extension rod 412 is fixedly installed on the opposite side of the two horizontal plates 410.

[0023] exist Figure 1 and Figure 2 In the figure, the tuyere sleeve 2 is sleeved on the outside of the plasma torch body 3, the positioning tube 401 and the clamping ring 402 are connected by expansion screws, and by setting the tuyere sleeve 2, the plasma torch body 3 is inserted into the tuyere sleeve 2, so that the plasma torch body 3 can heat the inside of the blast furnace body 1.

[0024] exist Figure 1 and Figure 2 In the figure, by setting a positioning and tightening mechanism 4, the various structures of the positioning and tightening mechanism 4 cooperate with each other to ensure that the plasma torch body 3 is installed more stably and avoid the gap between the plasma torch body 3 and the air inlet sleeve 2. The positioning and tightening mechanism 4 includes a positioning cylinder 401, a retaining ring 402, a baffle 403, a slider 404, an extension arm 405, a first tensioning rod 406, a limiting cylinder 407, a second tensioning rod 408, a limiting block 409, a cross plate 410, a clamping block 411 and an extension rod 412. Two slide grooves are opened inside the positioning cylinder 401, and the two sliders 404 extend to the inside of the two slide grooves on the side away from the baffle 403 respectively.

[0025] exist Figure 1 and Figure 3 In the figure, the two extension arms 405 are respectively hinged to the left sides of the two first tensioning rods 406, and the left and right sides of the two second tensioning rods 408 are fixedly connected to the limiting blocks. By setting the limiting cylinder 407, the second tensioning rod 408 can slide inside the limiting cylinder 407, so as to adjust the length of the second tensioning rod 408, which is convenient for connection with the blast furnace body 1.

[0026] exist Figure 2 and Figure 3In the embodiment, the two second tensioning rods 408 are hinged to the left side of the blast furnace body 1 at the sides away from the two limiting cylinders 407, and two card slots are provided inside the second tensioning rods 408. The two card blocks 411 extend into the two card slots at the sides away from the cross plate 410 respectively.

[0027] exist Figure 2 and Figure 4 In the embodiment, the limiting springs 5 ​​are fixedly installed on the opposite sides of the two transverse plates 410 , and the side of the limiting springs 5 ​​away from the transverse plates 410 is connected to the inner wall of the limiting block 409 .

[0028] To sum up, when the positioning and tightening device of the blast furnace plasma torch is used, first, the positioning tube 401 and the clamping ring 402 are sleeved on the outside of the plasma torch body 3 and the positioning tube 401 and the clamping ring 402 are fixed and stabilized by expansion screws. At this time, the second tensioning rod 408 is pulled outward. When it reaches the specified length, the extension rod 412 is loosened to allow the clamping block 411 to be inserted into the clamping groove to fix the second tensioning rod 408. Finally, the plasma torch body 3 is inserted into the tuyere sleeve 2 through a crane and other equipment, and the second tensioning rod 408 is fixed to the blast furnace body 1.

[0029] The electrical components appearing in this article are all connected to the external controller and 220V AC power, and the controller can be a conventional known device that plays a control role such as a computer. The specific model specifications of each device in this article need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and tightening device for a blast furnace plasma torch, comprising a blast furnace body (1), characterized in that: A tuyere sleeve (2) is arranged inside the blast furnace body (1), a plasma torch body (3) is arranged inside the blast furnace body (1), and a positioning and tightening mechanism (4) is arranged outside the blast furnace body (1); The positioning and tightening mechanism (4) comprises a positioning cylinder (401), a retaining ring (402), a baffle (403), a slider (404), an extension arm (405), a first tensioning rod (406), a limiting cylinder (407), a second tensioning rod (408), a limiting block (409), a cross plate (410), a clamping block (411) and an extension rod (412). The outside of the plasma torch body (3) is provided with a positioning cylinder (401), the outside of the plasma torch body (3) is sleeved with a retaining ring (402), the inside of the positioning cylinder (401) is provided with two baffles (403), and the two baffles (403) are fixedly mounted with sliders (404) on opposite sides thereof. The outside of the positioning cylinder (401) is provided with two extension arms (405), the outside of the extension arm (405) is hinged with a first tensioning rod (406), a limiting cylinder (407) is fixedly installed on the right side of the first tensioning rod (406), a second tensioning rod (408) is arranged inside the limiting cylinder (407), the left and right sides of the second tensioning rod (408) are provided with limiting blocks (409), a horizontal plate (410) is movably installed inside the limiting block (409), the opposite sides of the two horizontal plates (410) are fixedly installed with a clamping block (411), and the opposite sides of the two horizontal plates (410) are fixedly installed with an extension rod (412).

2. The positioning and tightening device for a blast furnace plasma torch according to claim 1, characterized in that: The tuyere sleeve (2) is sleeved on the outside of the plasma torch body (3), and the positioning tube (401) and the clamping ring (402) are connected by expansion screws.

3. The positioning and tightening device for a blast furnace plasma torch according to claim 1, characterized in that: Two slide grooves are provided inside the positioning cylinder (401), and the two sliding blocks (404) extend into the two slide grooves respectively on the side away from the baffle (403).

4. The positioning and tightening device for a blast furnace plasma torch according to claim 1, characterized in that: The two extension arms (405) are respectively hinged to the left sides of the two first tension rods (406), and the left and right sides of the two second tension rods (408) are fixedly connected to limit blocks.

5. The positioning and tightening device for a blast furnace plasma torch according to claim 1, characterized in that: The two second tensioning rods (408) are hingedly connected to the left side of the blast furnace body (1) on one side away from the two limiting cylinders (407), and two card slots are provided inside the second tensioning rods (408). The two card blocks (411) extend into the two card slots on one side away from the cross plate (410).

6. The positioning and tightening device for a blast furnace plasma torch according to claim 1, characterized in that: Limiting springs (5) are fixedly mounted on opposite sides of the two transverse plates (410), and the side of the limiting spring (5) away from the transverse plate (410) is connected to the inner wall of the limiting block (409).

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