Spraying device of needle coke cooling rotary kiln

Abstract

The utility model relates to a spray device of a needle coke cooling rotary kiln, which comprises a central pipe and an atomizing nozzle, a first water inlet pipe is arranged at one end of the central pipe far away from the atomizing nozzle, a heat-resistant partition cylinder is coaxially arranged on the outer wall of the atomizing nozzle, and a cooling cavity is formed between the inner wall of the heat-resistant partition cylinder and the outer wall of the central pipe. A rotating ring is rotatably arranged in the cooling cavity, a plurality of liquid stirring plates are arranged on the side wall of the rotating ring in the circumferential direction, a driving folded plate is fixedly arranged at the top of each liquid stirring plate, a second water inlet pipe is tangentially arranged above the side wall of the heat-resistant partition cylinder, and a water pumping ring assembly communicating with an inner cavity of the heat-resistant partition cylinder is arranged on the outer wall of the heat-resistant partition cylinder. After the atomizing nozzle extends into the rotary kiln, cold water can be injected into the central pipe through the first water inlet pipe, and the cold water is uniformly sprayed out from the atomizing nozzle for cooling; meanwhile, cold water is injected into the heat-resistant partition barrel through a second water inlet pipe and impacts a liquid stirring plate, so that a rotating ring rotates, water flow in the heat-resistant partition barrel flows, the heat insulation capacity is improved, and the phenomenon that the temperature of water sprayed out of the atomization spray head is too high, and consequently the spray head deforms is avoided.

Description

Technical Field

[0001] The utility model relates to the field of needle coke, in particular to a needle coke cooling rotary kiln spraying device. Background Art

[0002] After calcining, needle coke needs to be rapidly cooled in a rotary kiln to shorten its combustion time and improve product recovery. The temperature of calcined needle coke is approximately 1200°C. Water is sprayed through sprinklers in the rotary kiln and on the kiln exterior to cool it down. However, due to the high temperature inside the kiln, the water sprayed from the nozzles is too hot and easily vaporizes, causing nozzle deformation and uneven spraying. This urgently requires improvement. Utility Model Content

[0003] The utility model aims to provide a needle coke cooling rotary kiln spraying device, which is used to solve the problem that the nozzle of the existing needle coke cooling rotary kiln spraying device is easily deformed by heat and causes uneven spraying.

[0004] In order to solve the above problems, the utility model provides a needle coke cooling rotary kiln spray device, including a central tube and an atomizing nozzle, a first water inlet pipe is provided at one end of the central tube away from the atomizing nozzle, a heat-resistant spacer is coaxially provided on the outer wall of the atomizing nozzle, a cooling cavity is formed between the inner wall of the heat-resistant spacer and the outer wall of the central tube, a rotating ring is rotatably provided in the cooling cavity, a plurality of liquid diversion plates are circumferentially provided on the side wall of the rotating ring, a driving folding plate is fixedly provided on the top of the liquid diversion plate, a second water inlet pipe is tangentially provided above the side wall of the heat-resistant spacer, and the outer wall of the heat-resistant spacer is provided with a water pumping ring assembly connected to the inner cavity of the heat-resistant spacer.

[0005] The needle coke cooling rotary kiln spraying device provided by the utility model also has the following technical features:

[0006] Furthermore, the driving folding plate includes a horizontal connecting plate and a vertical water flow impact plate.

[0007] Furthermore, a pressure regulating valve is installed on the first water inlet pipe.

[0008] Furthermore, the water pumping ring assembly includes a connecting pipe, a water guide pipe and a water pumping ring. The water guide pipe is symmetrically arranged on both sides of the heat-resistant spacer. One end of the water guide pipe is fixedly connected to the outer wall of the atomizing nozzle. One end of the connecting pipe is connected to the inner cavity of the heat-resistant spacer, and the other end of the connecting pipe is connected to the inner cavity of the water guide pipe. The inner cavity of the water guide pipe is connected to the inner cavity of the water pumping ring.

[0009] Furthermore, a communication groove is provided on the liquid-repelling plate.

[0010] Furthermore, the heat-resistant insulation cylinder includes a cylinder body and a cylinder cover, and the cylinder body is connected to the cylinder cover by bolts.

[0011] The utility model has the following beneficial effects: when the atomizing nozzle is extended into the rotary kiln, cold water can be injected into the central tube through the first water inlet pipe, and the cold water is evenly sprayed out from the atomizing nozzle for cooling; at the same time, cold water is injected into the heat-resistant spacer through the second water inlet pipe, and the cold water impacts the liquid-diverting plate, causing the rotating ring to rotate, and causing the water in the heat-resistant spacer to flow, further improving the heat insulation capacity of the central tube, and avoiding deformation due to excessive temperature of the water sprayed from the atomizing nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the needle coke cooling rotary kiln spray device;

[0013] Figure 2 This is a schematic diagram of the half-section structure of the needle coke cooling rotary kiln spray device. DETAILED DESCRIPTION

[0014] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0015] like Figures 1 to 2 In the embodiment of the needle coke cooling rotary kiln spraying device of the utility model shown in the figure, it includes a central tube 1 and an atomizing nozzle 2, a first water inlet pipe 101 is provided at one end of the central tube 1 away from the atomizing nozzle 2, a heat-resistant spacer 3 is coaxially provided on the outer wall of the atomizing nozzle 2, a cooling cavity is formed between the inner wall of the heat-resistant spacer 3 and the outer wall of the central tube 1, a rotating ring 4 is rotatably provided in the cooling cavity, a plurality of liquid diverting plates 5 are circumferentially provided on the side wall of the rotating ring 4, a driving folding plate 6 is fixed on the top of the liquid diverting plate 5, a second water inlet pipe 30 is tangentially provided above the side wall of the heat-resistant spacer 3 The outer wall of the heat-resistant spacer 3 is provided with a water pumping ring assembly 7 which is connected to the inner cavity of the heat-resistant spacer 3. Specifically, when the atomizing nozzle 2 is extended into the rotary kiln, cold water can be injected into the central tube 1 through the first water inlet pipe 101, and the cold water is evenly sprayed out from the atomizing nozzle 2 for cooling; at the same time, cold water is injected into the heat-resistant spacer 3 through the second water inlet pipe 30, and the cold water impacts the liquid diverting plate 5, causing the rotating ring 4 to rotate, so that the water flow in the heat-resistant spacer 3 flows, thereby improving the heat insulation capacity, further improving the heat insulation capacity of the central tube 1, and avoiding the water temperature sprayed from the atomizing nozzle 2 being too high and deformed.

[0016] In one embodiment of the present application, the driving flap 6 includes a horizontal connecting plate 61 and a vertical water flow impact plate 62 .

[0017] In one embodiment of the present application, a pressure regulating valve 102 is installed on the first water inlet pipe 101 .

[0018] In one embodiment of the present application, the water pumping ring assembly 7 includes a connecting pipe 71, a water guide pipe 72 and a water pumping ring 73. The water guide pipe 72 is symmetrically arranged on both sides of the heat-resistant spacer 3. One end of the water guide pipe 72 is fixedly connected to the outer wall of the atomizing nozzle 2. One end of the connecting pipe 71 is connected to the inner cavity of the heat-resistant spacer 3, and the other end of the connecting pipe 71 is connected to the inner cavity of the water guide pipe 72. The inner cavity of the water guide pipe 72 is connected to the inner cavity of the water pumping ring 73. Specifically, after spraying water for a period of time, the water in the heat-resistant spacer 3 needs to be replaced to avoid the water in the heat-resistant spacer 3 gradually heating up and causing the water in the central tube 1 to heat up. The heated water in the heat-resistant spacer 3 can be discharged in time through the water pumping ring 73, the water guide pipe 72 and the connecting pipe 71, so that cold water can continue to be injected into the heat-resistant spacer 3.

[0019] In one embodiment of the present application, a connecting groove 50 is provided on the liquid diverter plate 5. Specifically, the connecting groove 50 can improve the flow capacity of the water flow, further avoid the water flow temperature in the central tube 1 from being too high, and improve the cooling capacity of the rotary kiln.

[0020] In one embodiment of the present application, the heat-resistant spacer 3 includes a cylinder body 31 and a cylinder cover 32 , and the cylinder body 31 and the cylinder cover 32 are connected by bolts.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A needle coke cooling rotary kiln spraying device, characterized in that: It includes a central tube and an atomizing nozzle, a first water inlet pipe is provided at one end of the central tube away from the atomizing nozzle, a heat-resistant spacer is coaxially provided on the outer wall of the atomizing nozzle, a cooling cavity is formed between the inner wall of the heat-resistant spacer and the outer wall of the central tube, a rotating ring is rotatably provided in the cooling cavity, a plurality of liquid-diverting plates are circumferentially provided on the side wall of the rotating ring, a driving folding plate is fixedly provided on the top of the liquid-diverting plate, a second water inlet pipe is tangentially provided above the side wall of the heat-resistant spacer, and the outer wall of the heat-resistant spacer is provided with a water pumping ring assembly connected with the inner cavity of the heat-resistant spacer.

2. The needle coke cooling rotary kiln spraying device according to claim 1, characterized in that: The driving folding plate includes a horizontal connecting plate and a vertical water flow impact plate.

3. The needle coke cooling rotary kiln spraying device according to claim 1, characterized in that: A pressure regulating valve is installed on the first water inlet pipe.

4. The needle coke cooling rotary kiln spraying device according to claim 1, characterized in that: The water pumping ring assembly includes a connecting pipe, a water guide pipe and a water pumping ring. The water guide pipe is symmetrically arranged on both sides of the heat-resistant spacer. One end of the water guide pipe is fixedly connected to the outer wall of the atomizing nozzle. One end of the connecting pipe is connected to the inner cavity of the heat-resistant spacer, and the other end of the connecting pipe is connected to the inner cavity of the water guide pipe. The inner cavity of the water guide pipe is connected to the inner cavity of the water pumping ring.

5. The needle coke cooling rotary kiln spraying device according to claim 4, characterized in that: A communicating groove is provided on the liquid-repelling plate.

6. The needle coke cooling rotary kiln spraying device according to claim 5, characterized in that: The heat-resistant spacer comprises a cylinder body and a cylinder cover, and the cylinder body is connected to the cylinder cover with bolts.

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