Large water beam of air guide wall for pellet shaft furnace

Abstract

The utility model relates to the technical field of pellet shaft furnaces, and provides a large water beam of an air guide wall for a pellet shaft furnace, which comprises two groups of water-cooled pipe components which are symmetrically arranged at two ends of the air guide wall and extend along the long axis direction of the air guide wall. Each group of water-cooling pipe assembly consists of a plurality of single water-cooling pipes which are sequentially arranged side by side from top to bottom; and the special-shaped block is located between the two water cooling pipes, the two sides of the special-shaped block are vertical faces, and a lower arc-shaped groove is formed in the top of the special-shaped block. By means of the device, mechanical stress and thermal stress borne by the device can be reduced, the risk of damage of the device is reduced, airflow fluctuation and hot air leakage in a hearth can be reduced through clamping connection between the clamping connection strips and the clamping connection grooves, the stability and reliability of a furnace are improved, and therefore smooth production is guaranteed, the product quality is improved, and the production cost is reduced. By means of the technical scheme, the problem that in the prior art, the fixing effect is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pelletizing vertical furnaces, and more specifically, to a large water beam of an air guide wall for a pelletizing vertical furnace. Background Art

[0002] The large water beam for the wind guide wall of the pelletizing vertical furnace is a key equipment, which is used to carry the refractory bricks of the wind guide wall and recover the hot air in the vertical furnace to dry the wet pellets. Its working environment is quite harsh, because the wind pressure in the vertical furnace is usually around 25-32kpa, and the temperature is as high as about 1000℃.

[0003] When an existing large water beam of an air guide wall for a pelletizing vertical furnace is in use, due to the large wind pressure in the vertical furnace, the pellets inside can be blown up and collide with the walls on both sides to form a vortex. After the vortex is formed for a long time and collides with the wall, the wall will be worn, resulting in the alternation of sudden cooling and sudden heating of the water cooling pipe, which will eventually cause the water cooling pipe to crack, and then cause the water cooling pipe to break and leak, and finally cause the large water channel of the air guide wall to be gradually damaged. Therefore, the present invention is committed to a new large water beam of an air guide wall for a pelletizing vertical furnace. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a large water beam of an air guide wall for a pelletizing vertical furnace, which has the advantage of high stability of the pelletizing vertical furnace.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large water beam of an air guide wall for a pelletizing vertical furnace, comprising a water cooling pipe assembly, wherein the water cooling pipe assembly has two groups and is symmetrically placed at both ends of the air guide wall and extends along the long axis direction of the air guide wall, and each group of water cooling pipe assemblies is composed of a plurality of single water cooling pipes arranged in sequence from top to bottom;

[0006] A special-shaped block, the special-shaped block is located between two water-cooling tubes, both sides of the special-shaped block are vertical surfaces, a lower arc groove is opened on the top of the special-shaped block, an upper arc groove is opened on the bottom of the special-shaped block, the lower arc groove wraps the lower half of the water-cooling tube assembly, and the upper arc groove wraps the upper half of the water-cooling tube assembly;

[0007] The upper part of the half-shaped block, the bottom of the block is provided with an upper arc groove, and the upper arc groove wraps the upper part of the water cooling pipe assembly;

[0008] A lower half of a half-shaped block, wherein a lower arc groove is formed on the top of the lower half of the half-shaped block, and the lower arc groove wraps the lower half of the water-cooling pipe assembly;

[0009] A clamping strip, which is fixedly mounted on the top of the lower half of the half-shaped block and the top of the shaped block;

[0010] A clamping groove is provided at the bottom of the special-shaped block and the bottom of the upper part of the half special-shaped block.

[0011] As a preferred technical solution of the utility model, an alloy powder surfacing layer is provided on the inner surface of the special-shaped block, and the number of the alloy powder surfacing layers is two, and the two alloy powder surfacing layers are symmetrically placed.

[0012] As a preferred technical solution of the utility model, the outer surface of the special-shaped block is provided with reinforcing ribs, and the number of the reinforcing ribs is two, and the two reinforcing ribs are distributed on the outer surfaces of the two special-shaped blocks.

[0013] As an optimal technical solution of the utility model, the outer diameter value of the water-cooling tube assembly is equal to the inner diameter value of the lower arc groove and the upper arc groove, and the transverse part of the reinforcing rib is tightly attached to the connection between the special-shaped block, the upper half of the half special-shaped block and the lower half of the half special-shaped block.

[0014] As an optimal technical solution of the utility model, the special-shaped block, the upper part of the half-special-shaped block and the lower part of the half-special-shaped block are all made of stainless steel, the inner walls of the lower arc groove and the upper arc groove are smooth, and both sides of the special-shaped block, the upper part of the half-special-shaped block and the lower part of the half-special-shaped block are vertical surfaces.

[0015] The working principle and beneficial effects of the utility model are:

[0016] The utility model places a water cooling pipe assembly between the special-shaped blocks and fixes them by clamping the clamping strips and the clamping grooves, then clamps the clamping grooves opened at the bottom of the upper half of the half special-shaped block with the clamping strips fixedly installed on the top of the special-shaped block and the clamping strips fixedly installed on the top of the lower half of the half special-shaped block with the clamping grooves opened at the bottom of the special-shaped block, and finally completes the installation. Compared with the traditional device, this device can reduce the mechanical stress and thermal stress it is subjected to, reduce the risk of damage, and reduce the air flow fluctuation and hot air leakage in the furnace through the clamping between the clamping strips and the clamping grooves, improve the stability and reliability of the furnace, thereby ensuring the smooth progress of production and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the side structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the alloy powder surfacing layer of the utility model;

[0021] Figure 5 This is a schematic diagram of the reinforcing rib structure of the utility model;

[0022] Figure 6 It is a schematic diagram of the partial enlarged structure of the utility model and point A in 3.

[0023] In the figure: 1. water-cooling tube assembly; 2. special-shaped block; 3. upper part of half special-shaped block; 4. lower part of half special-shaped block; 5. lower arc groove; 6. upper arc groove; 7. snap-in strip; 8. snap-in groove; 9. alloy powder surfacing layer; 10. reinforcing ribs. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figures 1 to 6 As shown, the utility model provides a large water beam of an air guide wall for a pelletizing vertical furnace, comprising a water cooling pipe assembly 1, wherein the number of the water cooling pipe assemblies 1 is two groups and they are symmetrically placed at both ends of the air guide wall and extend along the long axis direction of the air guide wall, and each group of water cooling pipe assemblies 1 is composed of a plurality of single water cooling pipes arranged in sequence from top to bottom;

[0026] A special-shaped block 2, the special-shaped block 2 is located between two water-cooling tubes, both sides of the special-shaped block 2 are vertical surfaces, a lower arc groove 5 is opened on the top of the special-shaped block 2, an upper arc groove 6 is opened on the bottom of the special-shaped block 2, the lower arc groove 5 wraps the lower half of the water-cooling tube assembly 1, and the upper arc groove 6 wraps the upper half of the water-cooling tube assembly 1;

[0027] The upper part 3 of the half-shaped block, the bottom of the shaped block 2 is provided with an upper arc groove 6, and the upper arc groove 6 wraps the upper part of the water-cooling pipe assembly 1;

[0028] A lower part 4 of the half-shaped block, a lower arc groove 5 is formed on the top of the lower part 4 of the half-shaped block, and the lower arc groove 5 wraps the lower part of the water-cooling pipe assembly 1;

[0029] A clamping strip 7, which is fixedly mounted on the top of the lower half 4 of the half-shaped block and the top of the shaped block 2;

[0030] A clamping groove 8, which is provided at the bottom of the special-shaped block 2 and the bottom of the upper part 3 of the half-special-shaped block;

[0031] When in use, place the two special-shaped blocks 2 from top to bottom in sequence, clamp the water-cooling pipe assembly 1 between the two special-shaped blocks 2, and then the clamping groove 8 opened at the bottom of the first special-shaped block 2 is clamped with the clamping strip 7 fixedly installed on the top of the second special-shaped block 2, and so on, and then the clamping groove 8 opened at the bottom of the upper half 3 of the half-shaped block is clamped with the clamping strip 7 fixedly installed on the top of the first special-shaped block 2, and finally the clamping strip 7 fixedly installed on the top of the lower half 4 of the half-shaped block is clamped with the clamping groove 8 opened at the bottom of the second special-shaped block 2 to complete the installation;

[0032] The water-cooling pipe assembly 1 is placed between the special-shaped block 2 and fixed by the clamping of the clamping strip 7 and the clamping groove 8. Then, the clamping groove 8 opened at the bottom of the upper part 3 of the half special-shaped block is clamped with the clamping strip 7 fixedly installed on the top of the special-shaped block 2 and the clamping strip 7 fixedly installed on the top of the lower part 4 of the half special-shaped block is clamped with the clamping groove 8 opened at the bottom of the special-shaped block 2, and finally the installation is completed. Compared with the traditional device, this device can reduce the mechanical stress and thermal stress it is subjected to, reduce the risk of damage, and reduce the airflow fluctuation and hot air leakage in the furnace through the clamping between the clamping strip 7 and the clamping groove 8, thereby improving the stability and reliability of the furnace, thereby ensuring the smooth progress of production and improving product quality.

[0033] The inner surface of the special-shaped block 2 is provided with an alloy powder surfacing layer 9, and there are two alloy powder surfacing layers 9, which are symmetrically placed.

[0034] An alloy powder surfacing layer 9 is provided on the inner surface of the special-shaped block 2. There are two alloy powder surfacing layers 9, and the two alloy powder surfacing layers 9 are symmetrically placed. The use of the alloy powder surfacing layer 9 can effectively control the penetration depth, reduce the dilution rate of the parent metal, thereby increasing the service life of the workpiece, and can make the weld structure more uniform, thereby improving the mechanical properties of the weld joint, such as strength, toughness and corrosion resistance.

[0035] Among them, the outer surface of the special-shaped block 2 is provided with a reinforcing rib 10, and the number of the reinforcing ribs 10 is two, and the two reinforcing ribs 10 are distributed on the outer surfaces of the two special-shaped blocks 2;

[0036] Reinforcing ribs 10 are arranged on the outer surface of the special-shaped block 2 , and there are two reinforcing ribs 10 which are evenly distributed on the outer surfaces of the two special-shaped blocks 2 . The arrangement of the reinforcing ribs 10 makes the connection between the two special-shaped blocks 2 stronger.

[0037] The outer diameter of the water-cooling pipe assembly 1 is equal to the inner diameter of the lower arc groove 5 and the upper arc groove 6, and the transverse portion of the reinforcing rib 10 is in close contact with the connection between the special-shaped block 2, the upper half 3 of the half-shaped block and the lower half 4 of the half-shaped block;

[0038] The outer diameter value of the water-cooling tube assembly 1 is set equal to the inner diameter value of the lower arc groove 5 and the upper arc groove 6. After the water-cooling tube assembly 1 is in contact with the lower arc groove 5 and the upper arc groove 6, it is more compact. The transverse part of the reinforcing rib 10 is in close contact with the connection between the special-shaped block 2, the upper part 3 of the half special-shaped block and the lower part 4 of the half special-shaped block, and the connection is made more stable by the close contact.

[0039] The shaped block 2, the upper part 3 of the half shaped block and the lower part 4 of the half shaped block are all made of stainless steel, the inner walls of the lower arc groove 5 and the upper arc groove 6 are smooth, and both sides of the shaped block 2, the upper part 3 of the half shaped block and the lower part 4 of the half shaped block are vertical surfaces;

[0040] The special-shaped block 2, the upper part 3 of the half-special-shaped block and the lower part 4 of the half-special-shaped block are all made of stainless steel. Stainless steel has high strength and hardness, so that it can withstand high loads and pressures without bending or deformation. Stainless steel has a long service life and is not easily susceptible to wear and damage, which means that the use of stainless steel can reduce the frequency of replacing parts and maintenance costs. The inner walls of the lower arc groove 5 and the upper arc groove 6 are smooth, and when they contact the water-cooling pipe assembly 1, they will not cause damage to the surface of the water-cooling pipe assembly 1. The two sides of the special-shaped block 2, the upper part 3 of the half-special-shaped block and the lower part 4 of the half-special-shaped block are vertical surfaces, which is more convenient when the alloy powder surfacing layer 9 and the reinforcing ribs 10 are arranged on both sides.

[0041] The working principle and use process of this utility model:

[0042] When in use, place the two special-shaped blocks 2 in sequence from top to bottom, clamp the water-cooling pipe assembly 1 between the two special-shaped blocks 2, and then the clamping groove 8 opened at the bottom of the first special-shaped block 2 is clamped with the clamping strip 7 fixedly installed on the top of the second special-shaped block 2, and so on. Then, the clamping groove 8 opened at the bottom of the upper part 3 of the half special-shaped block is clamped with the clamping strip 7 fixedly installed on the top of the first special-shaped block 2, and finally, the clamping strip 7 fixedly installed on the top of the lower part 4 of the half special-shaped block is clamped with the clamping groove 8 opened at the bottom of the second special-shaped block 2 to complete the installation.

[0043] 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.

[0044] Although the 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 large water beam for an air guide wall of a pelletizing vertical furnace, comprising a water cooling pipe assembly (1), Features: The water cooling pipe assemblies (1) are in two groups and are symmetrically placed at both ends of the air guide wall and extend along the long axis direction of the air guide wall. Each group of water cooling pipe assemblies (1) is composed of a plurality of single water cooling pipes arranged in sequence from top to bottom. A special-shaped block (2), the special-shaped block (2) being located between two water-cooling tubes, both sides of the special-shaped block (2) being formed by vertical surfaces, a lower arc-shaped groove (5) being provided at the top of the special-shaped block (2), an upper arc-shaped groove (6) being provided at the bottom of the special-shaped block (2), the lower arc-shaped groove (5) wrapping around the lower half of the water-cooling tube assembly (1), and the upper arc-shaped groove (6) wrapping around the upper half of the water-cooling tube assembly (1); The upper part (3) of the half-shaped block, the bottom of the shaped block (2) is provided with an upper arc-shaped groove (6), and the upper arc-shaped groove (6) wraps the upper part of the water-cooling pipe assembly (1); A lower half portion (4) of a half-shaped block, wherein a lower arc-shaped groove (5) is provided on the top of the lower half portion (4) of the half-shaped block, and the lower arc-shaped groove (5) wraps around the lower half portion of the water-cooling pipe assembly (1); A clamping strip (7), the clamping strip (7) being fixedly mounted on the top of the lower half (4) of the half-shaped block and the top of the shaped block (2); A clamping groove (8), wherein the clamping groove (8) is formed at the bottom of the special-shaped block (2) and the bottom of the upper part (3) of the half special-shaped block.

2. The large water beam of the air guide wall for a pelletizing vertical furnace according to claim 1, Features: An alloy powder surfacing layer (9) is provided on the inner surface of the special-shaped block (2), and there are two alloy powder surfacing layers (9), which are symmetrically placed.

3. The large water beam of the air guide wall for a pelletizing vertical furnace according to claim 1, Features: The outer surface of the special-shaped block (2) is provided with a reinforcing rib (10), the number of the reinforcing rib (10) is two, and the two reinforcing ribs (10) are distributed on the outer surfaces of the two special-shaped blocks (2).

4. The large water beam of the air guide wall for a pelletizing vertical furnace according to claim 1, Features: The outer diameter of the water-cooling pipe assembly (1) is equal to the inner diameter of the lower arc-shaped groove (5) and the upper arc-shaped groove (6), and the transverse portion of the reinforcing rib (10) is in close contact with the connection between the special-shaped block (2), the upper part of the half special-shaped block (3) and the lower part of the half special-shaped block (4).

5. The large water beam of the air guide wall for a pelletizing vertical furnace according to claim 1, Features: The shaped block (2), the upper part (3) of the half shaped block and the lower part (4) of the half shaped block are all made of stainless steel, the inner walls of the lower arc groove (5) and the upper arc groove (6) are smooth, and both sides of the shaped block (2), the upper part (3) of the half shaped block and the lower part (4) of the half shaped block are vertical surfaces.

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