Rotary kiln cooling water gun based on protection of circulating water protection sleeve

Abstract

The utility model relates to the technical field of material spray cooling, discloses a rotary kiln cooling water gun based on protection of a circulating water protection sleeve, and solves the problems that an existing rotary kiln cooling water gun is lack of effective protection, poor in cooling effect and incapable of adjusting the spraying direction and form according to working conditions. Comprising a water gun pipe, a flange welded on the outer wall of the water gun pipe is connected with an external pipeline, the external pipeline is provided with a cooling water inlet pipeline, a cooling water return pipeline and a material cooling water pipe, a cooling water gun is arranged in the water gun pipe, and a protective sleeve is arranged on the outer side of a gun body and communicated with the cooling water inlet pipeline and the cooling water return pipeline. Six cooling nozzles are arranged on the cooling water gun, and each cooling nozzle comprises a connecting pipe which is shrunk and then expanded, a cover cylinder and a spraying direction adjusting assembly on a chuck; the spraying direction adjusting assembly is composed of a sliding rod, a reset spring, a lock head, a locking block and a nozzle, the nozzle is provided with a round hole and a curved surface groove, a vortex fan is arranged on the sliding rod, the flow direction and form of cooling water can be adjusted according to working conditions, and the cooling effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of material spray cooling, in particular to a rotary kiln cooling water gun based on the protection of a circulating water protection sleeve. Background Art

[0002] In industrial production, rotary kilns are important equipment commonly used in many fields. For example, in cement, metallurgy, chemical and other industries, rotary kilns are used to perform high-temperature calcination or drying of materials. However, during the operation of the rotary kiln, the high temperature inside the kiln will have a serious thermal impact on the components of the equipment, especially the cooling water gun and other components that are in direct contact with the high temperature environment. Traditional rotary kiln cooling water guns are prone to wear and corrosion in a long-term high-temperature working environment, which affects their cooling effect and service life. This not only increases the maintenance cost of the equipment, but may also lead to a decrease in production efficiency.

[0003] The existing Chinese patent with publication number CN207741577U discloses a high-purity magnesia vertical kiln spray cooling water gun, which is used to spray and cool the materials after calcination in the high-purity magnesia vertical kiln. Its main structure includes a coaxially sleeved water gun inner tube and a water gun outer tube, one end of which is closed with a blind plate to form a water gun head. A nozzle is provided near the gun head, the water inlet end of the nozzle is connected to the water gun inner tube, and the water outlet end passes through the water gun outer tube. The annular space between the inner tube and the outer tube of the water gun is divided into a cooling water inlet channel and a cooling water outlet channel by a central partition. The inner tube of the water gun near the tail of the gun is provided with material cooling water and compressed air inlets. Material cooling water is introduced into the inner tube of the water gun, and compressed air is used as a carrier to evenly spray the high-temperature material through the nozzle for cooling. At the same time, water gun cooling water is introduced into the annular space to protect the spray cooling water gun from being damaged by high temperature. However, the cooling effect of the water gun may be limited by the nozzle size and the number of water spray holes, and may not be able to meet certain high-intensity cooling requirements. For different working conditions and cooling requirements, the nozzle may need to be frequently replaced or adjusted, which increases the complexity of operation.

[0004] In view of the above-mentioned related technologies, a rotary kiln cooling water gun based on circulating water protection sleeve protection is now provided, which can eliminate the disadvantages of the existing device. Utility Model Content

[0005] The utility model aims to provide a rotary kiln cooling water gun based on the protection of the circulating water protection sleeve. The device is adopted to work, thereby solving the problems that the existing rotary kiln cooling water gun lacks effective protection, has poor cooling effect and cannot adjust the spray direction and shape according to the working conditions.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary kiln cooling water gun based on circulating water protective sleeve protection, comprising a water gun tube, a flange welded on the outer wall, an external pipeline connected to the flange by bolts, a cooling water inlet pipeline, a cooling water return pipeline and a material cooling water pipe respectively passing through the external pipeline, the material cooling water pipe is arranged at the center of the external pipeline, the cooling water inlet pipeline and the cooling water return pipeline are arranged on one side of the material cooling water pipe, the cooling water inlet pipeline is located below the cooling water return pipeline, a cooling water gun is arranged in the water gun tube, six cooling nozzles are connected to the cooling water gun, a protective sleeve is arranged on the outside of the cooling water gun body, and the inner cavity of the protective sleeve is respectively connected to the cooling water inlet pipeline and the cooling water return pipeline.

[0007] Preferably, one end of the six cooling nozzles is fixedly connected to the inner wall of the cooling water gun, and the other end passes through the protective sleeve and is fixedly connected thereto, and a sealing structure is provided at the connection between the cooling nozzle and the protective sleeve.

[0008] Preferably, the cooling nozzle includes a connecting pipe and a cover tube. The connecting pipe is a pipeline structure that contracts first and then expands. A chuck is fixedly provided at one end of the cover tube, and a spray direction adjustment component is slidably provided on the chuck.

[0009] Preferably, the connecting pipe is composed of two parts, the front half is a contraction section, the diameter of the pipe gradually decreases, and the rear half is an expansion section, the diameter of the pipe gradually increases.

[0010] Preferably, the spray direction adjustment assembly includes a sliding rod, which passes through the chuck and is slidably connected thereto, a return spring is provided between one end of the sliding rod and the chuck, two ends of the return spring are respectively abutted against the end surfaces of the sliding rod and the chuck, the other end of the sliding rod is fixedly provided with a locking head, a locking block is clamped on the locking head, and the other end of the locking block is fixedly connected to the nozzle.

[0011] Preferably, the nozzle is an inverted frustum-conical structure.

[0012] Preferably, a plurality of circular holes are evenly arranged on the end surface of the nozzle.

[0013] Preferably, curved grooves are distributed circumferentially on the side wall of the nozzle.

[0014] Preferably, a vortex fan is rotatably provided on the slide rod.

[0015] Preferably, a plurality of marbles are distributed on the circumference of the lock, and a slot matching the marbles is provided on the inner wall of the locking block.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The utility model proposes a rotary kiln cooling water gun based on the protection of the circulating water protective sleeve. By setting the protective sleeve, the cooling water gun is effectively protected, so that it can work stably in a high temperature environment and extend the service life of the equipment. At the same time, the protective sleeve is connected with the cooling water inlet pipe and the cooling water return pipe, ensuring the circulation of cooling water and improving the cooling efficiency.

[0018] 2. The utility model proposes a rotary kiln cooling water gun based on the protection of the circulating water protection sleeve, and a special structural design of the cooling nozzle, including a connecting pipe that first contracts and then expands, a spray direction adjustment component, and an inverted frustum-shaped nozzle, etc., which can adjust the spray direction and shape of the cooling water according to different working conditions, so that the cooling is more uniform and sufficient, and the cooling effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the exploded structure of the water gun tube of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the cooling nozzle of the utility model;

[0023] Figure 5 This is a structural schematic diagram of the spray direction adjustment component of the utility model;

[0024] Figure 6 It is a schematic diagram of the exploded structure of the spray direction adjustment component of the utility model.

[0025] In the figure: 1. water gun tube; 12. flange; 13. external pipeline; 131. cooling water inlet pipeline; 132. cooling water return pipeline; 133. material cooling water pipe; 2. cooling water gun; 21. protective sleeve; 3. cooling nozzle; 31. connecting pipe; 311. contraction section; 312. expansion section; 32. cover tube; 321. chuck; 33. spray direction adjustment assembly; 331. slide rod; 332. return spring; 333. lock head; 334. locking block; 3340. slot; 335. nozzle; 3350. round hole; 3351. curved groove; 336. vortex fan; 4. marbles. DETAILED DESCRIPTION

[0026] 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.

[0027] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0028] Combination Figure 1-Figure 6 A rotary kiln cooling water gun based on circulating water protection sleeve protection, a flange 12 is welded on the outer wall of the water gun tube 1, an external pipe 13 is connected to the flange 12 by bolts, and a cooling water inlet pipe 131, a cooling water return pipe 132 and a material cooling water pipe 133 are respectively penetrated through the external pipe 13. The water gun tube 1 provides support and protection for the entire device. The pipes on the external pipe 13 are responsible for conveying cooling water and material cooling water respectively, so as to realize the cooling function of the rotary kiln; the material cooling water pipe 133 is arranged at the center position of the external pipe 13, the cooling water inlet pipe 131 and the cooling water return pipe 132 are arranged on one side of the material cooling water pipe 133, and the cooling water inlet pipe 131 is located below the cooling water return pipe 132; a cooling water gun 2 is arranged in the water gun tube 1, and six cooling nozzles 3 are connected to the cooling water gun 2. The cooling water gun 2 and the cooling nozzles 3 are used to spray cooling water to cool the objects in the kiln; a protective sleeve 21 is arranged on the outside of the gun body of the cooling water gun 2 to protect the cooling water gun 2, and the inner cavity of the protective sleeve 21 is respectively connected to the cooling water inlet pipe 131 and the cooling water return pipe 132 to ensure the circulation of cooling water.

[0029] One end of the six cooling nozzles 3 is fixedly connected to the inner wall of the cooling water gun 2, and the other end passes through the protective sleeve 21 and is fixedly connected thereto. A sealing structure is provided at the connection between the cooling nozzle 3 and the protective sleeve 21; the cooling nozzle 3 sprays the cooling water in the cooling water gun 2 evenly to cool the objects in the kiln, and the sealing structure can prevent cooling water leakage to ensure the normal operation of the cooling system.

[0030] The cooling nozzle 3 includes a connecting pipe 31 and a cover tube 32. The connecting pipe 31 is a pipe structure that contracts first and then expands. A chuck 321 is fixedly provided at one end of the cover tube 32, and a spray direction adjustment component 33 is slidably provided on the chuck 321. The special structure of the connecting pipe 31 can change the flow rate and pressure of the cooling water and improve the cooling effect; the cover tube 32 and the chuck 321 provide a mounting and supporting structure for the spray direction adjustment component 33; the connecting pipe 31 consists of two parts, the front half is a contraction section 311, the pipe diameter gradually decreases, and the rear half is an expansion section 312, the pipe diameter gradually increases; the contraction section 311 accelerates the cooling water and increases its kinetic energy, and the expansion section 312 decelerates the cooling water and increases the pressure, thereby achieving more effective cooling; this design of changing the pipe diameter can optimize the flow characteristics of the cooling water, improve the cooling efficiency, and make the cooling more uniform and sufficient.

[0031] The spray direction adjustment assembly 33 includes a slide rod 331, which passes through the chuck 321 and is slidably connected thereto. A return spring 332 is provided between one end of the slide rod 331 and the chuck 321. Both ends of the return spring 332 abut against the end surfaces of the slide rod 331 and the chuck 321 respectively. A lock head 333 is fixedly provided at the other end of the slide rod 331. A locking block 334 is clamped on the lock head 333. The other end of the locking block 334 is fixedly connected to a nozzle 335. The slide bar 331, the return spring 332, the lock head 333 and the locking block 334 cooperate with each other to adjust the spray direction of the nozzle 335 under different water pressures to meet the cooling requirements under different working conditions; there are multiple marbles 4 distributed on the circumference of the lock head 333, and a slot 3340 adapted to the marbles 4 is provided on the inner wall of the locking block 334; the cooperation between the marbles 4 and the slot 3340 enables the lock head 333 and the locking block 334 to be firmly connected together to ensure the stability of the nozzle 335. Thus, the stability of the cooling effect is ensured; a vortex fan 336 is rotatably provided on the slide bar 331; the rotation of the vortex fan 336 can make the cooling water form a vortex, increase the contact area between the cooling water and the surrounding air, improve the heat exchange efficiency, and thus enhance the cooling effect.

[0032] The nozzle 335 is an inverted frustum-shaped structure, which can form a specific spray shape of the cooling water, so that the cooling water can be sprayed more concentratedly on the target area, thereby enhancing the cooling effect; a plurality of circular holes 3350 are evenly arranged on the end face of the nozzle 335; the plurality of circular holes 3350 can make the cooling water spray out evenly to form a fine water mist, thereby improving the cooling effect; curved grooves 3351 are distributed circumferentially on the side wall of the nozzle 335, which can change the spray direction and angle of the cooling water, thereby making the cooling water form a more complex flow pattern, thereby improving the uniformity and comprehensiveness of the cooling.

[0033] Working principle: the material cooling water pipe 133, the cooling water inlet pipe 131 and the cooling water return pipe 132 respectively transport the corresponding medium through the external pipe 13; the cooling water gun 2 in the water gun tube 1 sprays cooling water through the cooling nozzle 3 to cool the objects in the kiln; the connecting pipe 31 of the cooling nozzle 3 changes the flow rate and pressure of the cooling water, and the cover tube 32 and the chuck 321 support the spray adjustment component 33. The slide bar 331, the return spring 332, the lock head 333 and the locking block 334 cooperate to adjust the spray direction of the nozzle 335. The vortex fan 336 makes the cooling water form a vortex to enhance the cooling effect. When the water pressure is high, the nozzle 335 rotates under the impetus of the vortex, and the cooling water is scattered along the curved groove 3351 on the nozzle 335. When the water pressure is low, the return spring 332 drives the slide bar 331 to move, and the nozzle 335 is retracted into the cover tube 32, and the cooling water is sprayed out from the circular hole 3350 in an atomized form; the special structure of the nozzle 335 allows the cooling water to be concentratedly sprayed, uniformly atomized and forms a complex flow pattern, thereby improving the cooling effect. The protective sleeve 21 protects the cooling water gun 2, and its inner cavity is connected to the pipeline to ensure the circulation of the cooling water.

[0034] 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.

[0035] 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 rotary kiln cooling water gun based on circulating water protection sleeve protection, comprising a water gun tube (1), a flange (12) welded on the outer wall of the water gun tube (1), an external pipe (13) connected to the flange (12) by bolts, a cooling water inlet pipe (131), a cooling water return pipe (132) and a material cooling water pipe (133) respectively passing through the external pipe (13), the material cooling water pipe (133) being arranged at the center of the external pipe (13), the cooling water inlet pipe (131) and the cooling water return pipe (132) being arranged on one side of the material cooling water pipe (133), the cooling water inlet pipe (131) being located below the cooling water return pipe (132), characterized in that: A cooling water gun (2) is provided in the water gun tube (1), and six cooling nozzles (3) are connected to the cooling water gun (2). A protective sleeve (21) is provided on the outside of the gun body of the cooling water gun (2), and the inner cavity of the protective sleeve (21) is respectively connected to a cooling water inlet pipe (131) and a cooling water return pipe (132).

2. The rotary kiln cooling water gun based on circulating water protection sleeve protection according to claim 1 is characterized in that: One end of the six cooling nozzles (3) is fixedly connected to the inner wall of the cooling water gun (2), and the other end passes through the protective sleeve (21) and is fixedly connected thereto. A sealing structure is provided at the connection between the cooling nozzles (3) and the protective sleeve (21).

3. The rotary kiln cooling water gun based on the circulating water protection sleeve protection according to claim 2 is characterized in that: The cooling nozzle (3) comprises a connecting pipe (31) and a cover tube (32). The connecting pipe (31) is a pipeline structure that contracts first and then expands. A chuck (321) is fixedly provided at one end of the cover tube (32). A spray direction adjustment component (33) is slidably provided on the chuck (321).

4. The rotary kiln cooling water gun based on the circulating water protection sleeve protection according to claim 3 is characterized in that: The connecting pipe (31) consists of two parts, the front half is a contraction section (311) with a gradually decreasing pipe diameter, and the rear half is an expansion section (312) with a gradually increasing pipe diameter.

5. The rotary kiln cooling water gun based on circulating water protection sleeve protection according to claim 3 is characterized in that: The spray direction adjustment assembly (33) comprises a slide rod (331), the slide rod (331) passes through the chuck (321) and is slidably connected thereto, a return spring (332) is provided between one end of the slide rod (331) and the chuck (321), two ends of the return spring (332) respectively abut against the end surfaces of the slide rod (331) and the chuck (321), a lock head (333) is fixedly provided at the other end of the slide rod (331), a locking block (334) is clamped on the lock head (333), and the other end of the locking block (334) is fixedly connected to the nozzle (335).

6. The rotary kiln cooling water gun based on the circulating water protection sleeve protection according to claim 5 is characterized in that: The nozzle (335) is an inverted frustum-shaped structure.

7. The rotary kiln cooling water gun based on the circulating water protection sleeve protection according to claim 5 is characterized in that: A plurality of circular holes (3350) are evenly arranged on the end surface of the nozzle (335).

8. The rotary kiln cooling water gun based on the circulating water protection sleeve protection according to claim 5 is characterized in that: Curved grooves (3351) are distributed circumferentially on the side wall of the nozzle (335).

9. The rotary kiln cooling water gun based on circulating water protection sleeve protection according to claim 5, characterized in that: A vortex fan (336) is rotatably provided on the slide bar (331).

10. The rotary kiln cooling water gun based on the circulating water protection sleeve protection according to claim 5, characterized in that: A plurality of marbles (4) are distributed on the circumference of the lock head (333), and a locking groove (3340) adapted to the marbles (4) is provided on the inner wall of the locking block (334).

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