CN216910647U

CN216910647U - Cooling nozzle

Info

Publication number: CN216910647U
Application number: CN202220125907.0U
Authority: CN
Inventors: 曹立强; 赵勇; 路利民; 耿博远; 宋永亮
Original assignee: Shenzhou Jiaxin Chemical Co ltd
Current assignee: Shenzhou Jiaxin Chemical Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-07-08
Anticipated expiration: 2032-01-18

Abstract

The utility model discloses a cooling nozzle, the nozzle includes spray tube and bearing section, the spray tube is a curved closed pipeline, its inside forms the cavity that can be passed through by the cooling water, the bearing section is open, form the cooling channel between the inner wall of bearing section and the rotary drum that waits to cool, the interval between the inner wall of the rotary drum and the cooling channel begins to reduce gradually from the end of the spray tube, finally form the jet orifice at the end of the bearing section; the spraying pipe and the bearing section are integrally arc-shaped. The cooling efficiency is improved.

Description

Cooling nozzle

Technical Field

The utility model relates to a chemical industry equipment, more specifically relate to a cooling nozzle.

Background

The current pelleter for producing 50% -60% of products by using sodium sulfide is usually a rotary drum pelleter, and the principle is that a semi-finished sodium sulfide solution is adhered to a drum surface from a material tray in the rotary drum rotating process, cooling water is introduced into the rotary drum, the cooling water exchanges heat with the inner wall of the rotary drum and the adhered sodium sulfide to cool and crystallize the sodium sulfide, and a crystallized thin slice sodium sulfide solid is cut by a scraper to form a flaky sodium sulfide product. The cooling water is introduced into the radial structure water spraying frame through the hollow shaft of the rotary drum, the cold water is sprayed out from the nozzles of the water spraying frame, the cold water is sprayed to the surface of the inner wall of the rotary drum to cool the drum surface, the cold water exchanges heat with the material film attached to the surface of the outer wall through the drum wall, the cooling medium after heat exchange is collected to the lower part of the rotary drum along the inner wall, continues to exchange heat with the material liquid contacted with the bottom of the rotary drum, and is discharged through the cooling water discharge pipe.

The nozzle is usually in a shower shape in the cooling structure, the water jet flow of the nozzle is perpendicular to the inner wall of the rotary drum, and the water jet flow is perpendicular to the wall of the rotary drum, so that the retention time of the water jet flow on the wall of the rotary drum is short, the cooling effect is poor, the energy consumption is high, and sodium sulfide tablets can be agglomerated when the temperature of a sodium sulfide solution is high.

SUMMERY OF THE UTILITY MODEL

To overcome the defects of the prior art, the novel cooling nozzle is provided.

A cooling nozzle comprises a spray pipe and a bearing section, wherein the spray pipe is an arc-shaped closed pipeline, a cavity for cooling water to pass through is formed in the spray pipe, the bearing section is open, a cooling channel is formed between the bearing section and the inner wall of a rotary drum to be cooled, the distance between the cooling channel and the inner wall of the rotary drum is gradually reduced from the tail end of the spray pipe, and finally a spray opening is formed at the tail end of the bearing section; the spray pipe and the bearing section are integrally arc-shaped.

Optionally, the cooling water sprayed out of the spray pipe flows along the cooling channel under the support of the support section; the water distribution device also comprises a water distribution ring arranged in the rotary drum, wherein a plurality of nozzles are arranged on the water distribution ring, and the water spraying direction of the nozzles is opposite to the rotation direction of the rotary drum; a material tray is arranged below the rotary drum; cooling water enters the water distribution circular ring through the main water pipe and the branch pipe, and is sprayed into the rotary drum from the nozzles of the water distribution circular ringOn the wall; the size of the jet orifice is 3-5 CM; the radian of the bearing section is

This neotype beneficial effect is: in this is novel, change the nozzle of traditional gondola water faucet formula into the nozzle that closes and open to combining in order to have the arc structure for jet stream is opposite with the direction of rotation, and the two forms relative motion, has increased the activity duration of cooling water on the rotary drum, and open bearing section design has increased the area of scattering on the one hand simultaneously, and on the other hand has prolonged the flow distance of cooling water, has improved cooling efficiency.

Drawings

FIG. 1 is a schematic view of a pellet mill;

FIG. 2 is a schematic view of a cooling configuration;

FIG. 3 is a schematic view of a nozzle configuration;

fig. 4 is a perspective view of the nozzle.

Detailed Description

The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the preferred embodiments of the present invention when taken in conjunction with the accompanying drawings. Like reference numerals refer to like parts throughout the drawings. The drawings are not intended to be to scale, emphasis instead being placed upon illustrating the principles of the invention.

Referring to fig. 1 and 2, the novel sodium sulfide production pelleter comprises a rotary drum 1, a hollow rotary shaft 3 penetrates through the center of the rotary drum 1, the rotary drum 1 rotates around the rotary shaft 3, and a main water pipe 4 penetrates through the rotary shaft 3. A plurality of water distribution rings 2 are arranged in the rotary drum 1, the water distribution rings 2 are communicated with a main water pipe 4 through a plurality of radial branch pipes 5, so that cooling water flowing through the main water pipe 4 is introduced into the water distribution rings 2 through the radial branch pipes 5.

The water distribution ring 2 is provided with a plurality of nozzles 6, the water spraying direction of the nozzles 6 is opposite to the rotation direction of the rotary drum 1, and as shown in fig. 2, when the rotary drum 1 rotates counterclockwise, the water spraying direction is approximately clockwise, and the nozzles 6 spray cooling water on the inner wall of the rotary drum 1, so that the purpose of cooling the rotary drum 1 is achieved.

In the working process, a material tray 5 is arranged below a rotary drum 1, a semi-finished product sodium sulfide solution enters the material tray 5, the sodium sulfide solution in the material tray 5 can be adhered to the outer wall of the rotary drum 1 in the rotation process of the rotary drum 1, cooling water enters a water distribution ring 2 through a main water pipe 4 and a branch pipe 5, and is sprayed to the inner wall of the rotary drum 1 from a nozzle 6 of the water distribution ring 2, so that the sodium sulfide on the rotary drum 1 is cooled and crystallized, and then the sodium sulfide on the rotary drum 1 is scraped off through a scraper, so that the tabletting process is completed.

In this is novel, the water distribution ring structure that traditional radial structure water spray frame has changed into the multilayer distribution, such structure can be more intensive on the one hand sets up multilayer water distribution ring, increase the cooling water yield, on the other hand, water distribution ring and rotary drum are the circumferencial structure with, and the rotation opposite direction of water spray direction and rotary drum, make nozzle spun cooling water change like this and form the convection current with the direction of motion of rotary drum, make rotary drum and cooling water relative motion distance increase, this convection current has improved the dwell time of jet stream on rotary drum wall, the active time of cooling water has been prolonged promptly, cooling efficiency is improved.

Fig. 3 and 4 are the structural schematic diagrams of the novel nozzle 6, the nozzle 6 includes a spray pipe 6.1 and a bearing section 6.2, the spray pipe 6.1 is a section of arc-shaped closed pipeline, a cavity 6.3 for cooling water to pass through is formed inside the spray pipe, the bearing section 6.2 is semi-closed, a cooling channel 6.4 is formed between the bearing section 6.2 and the inner wall of the rotary drum 1, the distance between the cooling channel 6.4 and the inner wall of the rotary drum 1 is gradually reduced from the tail end of the spray pipe 6.1, finally, a spray opening 6.5 is formed at the tail end of the bearing section 6.2, the spray pipe 6.1 and the bearing section 6.2 are integrally arc-shaped, so that the water flow direction in the cooling channel 6.4 is opposite to the rotation direction of the rotary drum 1.

The nozzle 6 is installed on the water distribution circular ring 2, the cooling water enters the spray pipe 6.1 from the upper part of the water distribution circular ring 2, the cooling water sprayed out of the spray pipe 6.1 flows along the cooling channel 6.4 under the support of the bearing section 6.2, the flowing direction of the cooling water is opposite to the rotating direction of the rotary drum 1, and due to the existence of the bearing section 6.2, the sprayed cooling water can be spread between the bearing section 6.2 and the inner wall of the rotary drum 1 on one hand, so that the contact area between the cooling water and the rotary drum 1 is increased; on the other hand, the support section 6.2 also extends the cooling water flow distance, i.e. the cooling water does not prematurely detach from the inner wall of the drum 1, thus increasing the action time of the cooling water with the drum 1. The contact area and the action time are improved after the bearing section is increased, so that the cooling efficiency of the rotary drum is greatly improved.

In production, the size of the injection port 6.5 (namely, the distance between the tail end of the bearing section 6.2 and the inner wall of the rotary drum 1) and the radian A of the bearing section have direct influence on the cooling efficiency, and in practical use, the cooling efficiency is greatly improved when the injection port 6.5 is 2CM-6CM, because the energy consumption is increased by the excessively small injection port, the injection amount of cooling water is reduced, the acting time of the cooling water is shortened by the excessively large injection port, and particularly, the energy consumption and the cooling efficiency can reach the optimal balance when the injection port 6.5 is 3CM-5 CM. The radian A of the bearing section influences the spreading area of the cooling water, the cooling water can be easily spread from the cooling channel 6.4 along with the increase of the radian, but the spread cooling water with the overlarge radian is difficult to contact with the inner wall of the rotary drum 1, so that the cooling effect is reduced, and the radian is preferably selected as

When the cooling water is sprayed out at a high speed, part of the cooling water flows out from a gap between the spray pipe 6.1 and the inner wall of the rotary drum 1, so that the utilization rate of the cooling water is reduced, and the sealing gasket 6.6 is further added at the gap between the spray pipe 6.1 and the inner wall of the rotary drum 1, so that good sealing is formed between the spray pipe 6.1 and the inner wall of the rotary drum 1, the cooling water can be prevented from flowing out from the gap, and the utilization rate of the cooling water is improved.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. The foregoing description is only illustrative of the preferred embodiments of this invention and, therefore, the invention is not limited to the specific details disclosed herein, since the invention can be practiced in many other ways than those specifically described herein. While the invention has been described with reference to exemplary embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. Any simple modification, equivalent change and modification made to the above embodiments according to the novel technical substance are still within the protection scope of the novel technical scheme.

Claims

1. A cooling nozzle is characterized by comprising a spray pipe and a bearing section, wherein the spray pipe is an arc-shaped closed pipeline, a cavity for cooling water to pass through is formed in the spray pipe, the bearing section is open, a cooling channel is formed between the bearing section and the inner wall of a rotary drum to be cooled, the distance between the cooling channel and the inner wall of the rotary drum is gradually reduced from the tail end of the spray pipe, and finally a spray opening is formed at the tail end of the bearing section; the spray pipe and the bearing section are integrally arc-shaped.

2. A cooling nozzle according to claim 1, wherein cooling water from said nozzle tube flows along said cooling passage under the support of said support section.

3. The cooling nozzle according to claim 1, further comprising a water distribution ring disposed in the rotary drum, wherein a plurality of nozzles are disposed on the water distribution ring, and the water spraying direction of the nozzles is opposite to the rotation direction of the rotary drum.

4. A cooling nozzle according to claim 1, characterized in that a tray is arranged below the drum.

5. The cooling nozzle according to claim 3, wherein cooling water enters the water distribution ring through a main water pipe through a branch pipe, and is sprayed from the nozzles of the water distribution ring onto the inner wall of the rotary drum.

6. A cooling nozzle according to claim 1, wherein the size of the injection port is 3CM to 5 CM.

7. A cooling nozzle according to claim 1 wherein said bearing section has an arc of

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