Water cooling mechanism for furnace core tube

Abstract

The utility model discloses a water cooling mechanism for a furnace core pipe. The water cooling mechanism comprises a first cooling water pipe, a cooling water collecting pool, a cooling device and a plurality of waterproof rings, the multiple waterproof rings are arranged on the peripheral face of the furnace core pipe in a sleeving mode and are arranged at intervals in the axial direction of the furnace core pipe; the cooling water collecting pool is arranged below the furnace core pipe; the first cooling water pipe is erected above the furnace core pipe, the first cooling water pipe extends in the length direction of the furnace core pipe, the input end of the first cooling water pipe is communicated with the output end of the cooling device, and the input end of the cooling device is communicated with the bottom of the cooling water collecting pool; the cooling device is used for cooling the cooling water; the first cooling water pipe is provided with a plurality of water spraying holes, and the water spraying holes are distributed in the bottom face of the first cooling water pipe at intervals in the length direction and distributed above the water separation rings at intervals. Cooling water circularly cooled by the cooling device is adopted to reduce the body temperature of the furnace core pipe, so that the time for cooling the furnace core pipe can be shortened, and the working efficiency of overhauling is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kiln installation, in particular to a water cooling mechanism for a furnace core tube. Background Art

[0002] Conventional rotary kilns consist of a sealed hood, a furnace tube, and a screw feeder. The sealed hood features a feed or discharge port in the middle, with the ends of the furnace tube inserted into the feed or discharge port, respectively. During operation, the rotary kiln rotates the furnace tube to stir the material being fired, improving temperature uniformity during firing.

[0003] When the furnace core tube of a stopped rotary kiln needs to be repaired, the furnace core tube needs to be left to cool down and cooled to near room temperature before the repair work can be carried out. The cooling process takes a long time, resulting in low efficiency of the furnace core tube repair work and shortening the operating time of the rotary kiln. Utility Model Content

[0004] In view of the above shortcomings, the purpose of the present invention is to propose a water cooling mechanism for a furnace core tube, so as to solve the problems of a long cooling process of the furnace core tube and low maintenance efficiency of the furnace core tube.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A water cooling mechanism for a furnace core tube, comprising a first cooling water pipe, a cooling water collecting tank, a cooling device and a plurality of water isolation rings;

[0007] The plurality of water-isolating rings are respectively sleeved on the outer peripheral surface of the furnace core tube, and the plurality of water-isolating rings are arranged at intervals along the axial direction of the furnace core tube; the cooling water collection pool is arranged below the furnace core tube;

[0008] The first cooling water pipe rack is installed above the furnace core tube, the first cooling water pipe extends along the length of the furnace core tube, the input end of the first cooling water pipe is connected to the output end of the cooling device, and the input end of the cooling device is connected to the bottom of the cooling water collection tank; the cooling device is used to cool the cooling water;

[0009] The first cooling water pipe is provided with a plurality of water spray holes, and the plurality of water spray holes are distributed at intervals along the length direction on the bottom surface of the first cooling water pipe, and the plurality of water spray holes are arranged at intervals above the plurality of water isolation rings.

[0010] Specifically, the cooling device includes a cooling water input pipe, a cooling water tower, a cooling water circulation pool, a cooling water output pipe and at least two circulating water pumps;

[0011] The input end of the cooling water input pipe is connected to the bottom of the cooling water collecting pool, and the output end of the cooling water input pipe is connected to the input end of the cooling water tower, and the input end of the cooling water tower is located at the top of the cooling water tower; the cooling water circulation pool is installed below the cooling water tower, the input end of the cooling water output pipe is connected to the bottom of the cooling water circulation pool, and the output end of the cooling water output pipe is connected to the input end of the first cooling water pipe; the two circulating water pumps are respectively installed in the middle of the cooling water input pipe and the middle of the first cooling water pipe.

[0012] Furthermore, the cooling device further comprises two filters;

[0013] The filter is installed close to the input end of the circulating water pump of the cooling water input pipe or the input end of the circulating water pump of the cooling water output pipe.

[0014] Furthermore, the cooling device further includes a check valve;

[0015] The check valve is installed close to the output end of the circulating water pump of the cooling water inlet pipe or the output end of the circulating water pump of the cooling water output pipe.

[0016] Furthermore, the cooling device also includes a water temperature detector, a water pressure detector and a flow detector;

[0017] The cooling water inlet pipe and the cooling water outlet pipe are both installed with the water temperature detector;

[0018] The water pressure detector and the flow detector are respectively installed on the cooling water output pipe.

[0019] Furthermore, the cooling device further includes a second cooling water pipe;

[0020] The second cooling water pipe rack is installed below the furnace core tube, and the second cooling water pipe extends along the length direction of the furnace core tube. The input end of the second cooling water pipe is connected to the output end of the cooling device through a pipeline. The second cooling water pipe is provided with a plurality of water spray holes, and the plurality of water spray holes are spaced apart and distributed on the top surface of the second cooling water pipe along the length direction.

[0021] Furthermore, it also includes a cover;

[0022] The top of the cover covers the first cooling water pipe and the plurality of water isolation rings, and the bottom edge of the cover is connected to the side surface of the cooling water collecting tank.

[0023] Furthermore, it also includes an exhaust pipe; the top of the cover is also provided with a plurality of upwardly protruding exhaust parts;

[0024] The exhaust part is hollow and has a conical shape with a small top and a large bottom; the input end of the exhaust pipe is connected to the top of the exhaust part, and the output end of the exhaust pipe is connected to the input end of an external exhaust device.

[0025] Furthermore, it also includes a drain valve and a liquid level gauge;

[0026] The input port of the drain valve is connected to the bottom of the cooling water collection tank, and the output port of the drain valve is connected to the external sewage drain;

[0027] The liquid level meter is installed on the side of the cooling water collecting tank.

[0028] Furthermore, the water isolation ring is provided with a plurality of through holes;

[0029] The through hole penetrates the water isolation ring in the axial direction, and a plurality of the through holes are arranged at intervals along the outer circumference of the water isolation ring.

[0030] The technical solution of the water cooling mechanism for the furnace core tube proposed in the present invention has the following beneficial effects: through the cooperation of the first cooling water pipe, the cooling water collecting pool, the cooling device and multiple water-isolating rings, cooling water is used to improve the efficiency of cooling the furnace core tube, thereby improving the maintenance efficiency of the furnace core tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic layout diagram of a first embodiment of a water cooling mechanism for a furnace core tube according to the present invention;

[0032] Figure 2 This is a schematic layout diagram of a second embodiment of a water cooling mechanism for a furnace core tube according to the present invention;

[0033] Figure 3 This is a schematic layout diagram of a second embodiment of a water cooling mechanism for a furnace core tube according to the present invention;

[0034] Figure 4 Schematic diagram of the structure of the water isolation ring;

[0035] Among them: furnace core tube 1; first cooling water pipe 2; water isolation ring 3; cooling water collecting tank 4; cooling device 5; cover 6; drain valve 7; exhaust pipe 8; liquid level gauge 9; second cooling water pipe 10; cooling water inlet pipe 50; circulating water pump 51; filter 52; check valve 53; cooling water tower 54; cooling water circulation tank 55; cooling water output pipe 56; water pressure detector 57; flow detector 58; water temperature detector 59; exhaust unit 61. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4The technical solution of the utility model is further illustrated through specific implementation methods.

[0037] The accompanying drawings are for illustrative purposes only and are not to be construed as limitations on this patent. To better illustrate this embodiment, some components of the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the actual dimensions of the product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted from the accompanying drawings.

[0038] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted" and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium, which can be said to be the internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood by those skilled in the art in specific circumstances.

[0039] A water cooling mechanism for a furnace core tube, comprising a first cooling water pipe 2, a cooling water collecting tank 4, a cooling device 5 and a plurality of water isolation rings 3;

[0040] The plurality of water-isolating rings 3 are respectively sleeved on the outer circumference of the furnace core tube 1, and the plurality of water-isolating rings 3 are arranged at intervals along the axial direction of the furnace core tube 1; the cooling water collecting pool 4 is arranged below the furnace core tube 1;

[0041] The first cooling water pipe 2 is mounted above the furnace core tube 1 and extends along the length of the furnace core tube 1. The input end of the first cooling water pipe 2 is connected to the output end of the cooling device 5, and the input end of the cooling device 5 is connected to the bottom of the cooling water collection tank 4. The cooling device 5 is used to cool the cooling water.

[0042] The first cooling water pipe 2 is provided with a plurality of water spray holes, and the plurality of water spray holes are distributed at intervals along the length direction on the bottom surface of the first cooling water pipe 2 , and the plurality of water spray holes are arranged at intervals above the plurality of water isolation rings 3 .

[0043] Figure 1 The utility model is a schematic layout diagram of an embodiment of a water cooling mechanism for a furnace core tube.

[0044] When the furnace core tube 1 of the rotary kiln needs to be overhauled, the cooling device 5 is started, and the cooled cooling water is output to the first cooling water pipe 2 through the output end of the cooling device 5, and the multiple water spray holes located on the bottom surface of the first cooling water pipe 2 spray cooling water to the outer peripheral surface of the furnace core tube 1. The cooling water guided by multiple water-isolating rings 3 is evenly distributed on the outer peripheral surface of the furnace core tube 1 and flows downward into the cooling water collecting tank 4. The cooling water then enters the input end of the cooling device 5 from the bottom of the cooling water collecting tank 4, and then the cooling water is cooled again by the cooling device 5 before being output. The cooling water circulated in this way can continuously reduce the body temperature of the furnace core tube 1 until the body temperature of the furnace core tube 1 reaches a temperature at which maintenance work can be carried out.

[0045] Specifically, the cooling device 5 includes a cooling water input pipe 50, a cooling water tower 54, a cooling water circulation pool 55, a cooling water output pipe 56 and at least two circulating water pumps 51;

[0046] The input end of the cooling water input pipe 50 is connected to the bottom of the cooling water collecting pool 4, and the output end of the cooling water input pipe 50 is connected to the input end of the cooling water tower 54, and the input end of the cooling water tower 54 is located at the top of the cooling water tower 54; the cooling water circulation pool 55 is installed below the cooling water tower 54, and the input end of the cooling water output pipe 56 is connected to the bottom of the cooling water circulation pool 55, and the output end of the cooling water output pipe 56 is connected to the input end of the first cooling water pipe 2; the two circulating water pumps 51 are respectively installed in the middle of the cooling water input pipe 50 and the middle of the first cooling water pipe 2.

[0047] like Figure 1 As shown, the cooling device 5 inputs the cooling water to be cooled from the cooling water collection pool 4 to the top of the cooling water tower 54 through the cooling water input pipe 50, and then transports the cooled cooling water to the input end of the first cooling water pipe 2 through the cooling water output pipe 56. The cooling water is circulated and cooled by the cooperation of the cooling water tower 54 and the two circulating water pumps 51 to ensure the continuous supply of cooling water for the furnace core tube 1, thereby improving the efficiency of cooling the furnace core tube 1.

[0048] Furthermore, the cooling device 5 further includes two filters 52;

[0049] The filter 52 is installed close to the input end of the circulating water pump 51 of the cooling water input pipe 50 or the input end of the circulating water pump 51 of the cooling water output pipe 56 .

[0050] like Figure 1 As shown, solid particles in the water are filtered out by the filter 52 to prevent the solid particles in the water from damaging the circulating water pump 51.

[0051] Furthermore, the cooling device 5 further includes a check valve 53;

[0052] The check valve 53 is installed close to the output end of the circulating water pump 51 of the cooling water inlet pipe 50 or the output end of the circulating water pump 51 of the cooling water output pipe 56 .

[0053] like Figure 1 As shown, the flow direction of cooling water in the cooling water inlet pipe 50 or the cooling water outlet pipe 56 is limited by the check valve 53 to avoid water shortage in the first cooling water pipe 2 located at a high position and the cooling water inlet pipe 50 connected to the top of the cooling water tower 54 during operation.

[0054] Furthermore, the cooling device 5 further includes a water temperature detector 59, a water pressure detector 57 and a flow detector 58;

[0055] The cooling water inlet pipe 50 and the cooling water outlet pipe 56 are both installed with the water temperature detector 59;

[0056] The water pressure detector 57 and the flow rate detector 58 are respectively installed on the cooling water output pipe 56 .

[0057] like Figure 1 As shown, the water temperature detector 59 installed in the cooling water inlet pipe 50 and the water temperature detector 59 of the cooling water outlet pipe 56 are used to detect the water temperature of the cooling water before and after cooling by the cooling water tower 54, so as to immediately understand the operating status of the cooling water tower 54.

[0058] like Figure 1 As shown, the water pressure and flow rate of the cooling water output from the cooling water output pipe 56 are detected by the water pressure detector 57 and the flow rate detector 58 respectively, which can provide a reference for adjusting the operating parameters of the circulating water pump 51.

[0059] Furthermore, the cooling device 5 further includes a second cooling water pipe 10;

[0060] The second cooling water pipe 10 is mounted below the furnace core tube 1. The second cooling water pipe 10 extends along the length direction of the furnace core tube 1. The input end of the second cooling water pipe 10 is connected to the output end of the cooling device 5 through a pipeline. The second cooling water pipe 10 is provided with a plurality of water spray holes, and the plurality of water spray holes are spaced apart and distributed on the top surface of the second cooling water pipe 10 along the length direction.

[0061] The cooling effect of the cooling device 5 on the furnace core tube 1 can be further improved by spraying cooling water toward the bottom surface and the outer peripheral surface of the furnace core tube 1 through multiple water spray holes distributed on the top surface of the second cooling water pipe 10 .

[0062] Furthermore, it also includes a cover 6;

[0063] The top of the cover 6 covers the first cooling water pipe 2 and the plurality of water isolation rings 3 , and the bottom edge of the cover 6 is connected to the side of the cooling water collecting tank 4 .

[0064] like Figure 1 As shown, when cooling water is sprayed on the surface of the furnace core tube 1 with a higher temperature, water vapor will be formed. The cover 6 can prevent the water vapor from diffusing outward, and the water formed after the water vapor is condensed can be diverted to the cooling water collection pool 4 through the cover 6, which can reduce the loss of cooling water.

[0065] like Figure 3 In the embodiment shown, an air extraction pipe 8 is further included; the top of the cover 6 is also provided with a plurality of upwardly protruding air extraction portions 61;

[0066] The exhaust part 61 is hollow and has a conical shape with a small top and a large bottom. The input end of the exhaust pipe 8 is connected to the top of the exhaust part 61, and the output end of the exhaust pipe 8 is connected to the input end of an external exhaust device.

[0067] The exhaust portion 61 and the exhaust pipe 8 cooperate to discharge the water vapor and hot air flow rising into the cover 6 , thereby reducing the temperature around the furnace core tube 1 and improving the cooling efficiency of the cooling device 5 .

[0068] In addition, multiple drainage holes can be set on the side and top of the first cooling water pipe 2. The water discharged from the side drainage holes bounces back to the surface of the furnace core tube 1 through the cover 6, and the water discharged from the top drainage holes can cool the water vapor and the rising hot air flow.

[0069] like Figure 2 and Figure 3 In the embodiment shown, a drain valve 7 and a liquid level gauge 9 are also included;

[0070] The input port of the drain valve 7 is connected to the bottom of the cooling water collection tank 4, and the output port of the drain valve 7 is connected to the external sewage drain;

[0071] The liquid level meter 9 is installed on the side of the cooling water collection tank 4.

[0072] Impurities accumulated at the bottom of the cooling water collecting tank 4 can be discharged through the drain valve 7 to reduce the load of the filter 52 and prevent the filter 52 from being blocked.

[0073] like Figure 1-3 In the embodiment shown, by monitoring the water level of the cooling water collecting tank 4 displayed by the liquid level gauge 9 and adjusting the water level of the cooling water collecting tank 4 through the drain valve 7, the water level of the cooling water collecting tank 4 can be prevented from exceeding the set limit to avoid overflow of the cooling water from the cooling water collecting tank 4.

[0074] like Figure 4In the embodiment shown, the water isolation ring 3 is provided with a plurality of through holes 31;

[0075] The through hole 31 penetrates the water isolation ring 3 in the axial direction, and a plurality of the through holes 31 are arranged at intervals along the outer circumference of the water isolation ring 3 .

[0076] When the cooling water flows near the annular surface of the water isolation ring 3, the cooling water will penetrate into the through hole 31 near the outer circumference of the water isolation ring 3, which can extend the residence time of the cooling water in the water isolation ring 3 and improve the heat exchange rate of the cooling water.

[0077] In summary, if Figure 1-4 In the embodiment of the utility model shown, the water cooling mechanism for the furnace core tube uses cooling water to improve the cooling time of the furnace core tube 1 through the cooperation of the first cooling water pipe 2, the cooling water collecting pool 4, the cooling device 5 and multiple water-isolating rings 3, thereby improving the maintenance efficiency of the furnace core tube 1.

[0078] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific implementations of the present invention without inventive effort, and such implementations will fall within the scope of protection of the present invention.

Claims

1. A water cooling mechanism for a furnace core tube, characterized in that: It includes a first cooling water pipe, a cooling water collecting tank, a cooling device and a plurality of water isolation rings; The plurality of water-isolating rings are respectively sleeved on the outer peripheral surface of the furnace core tube, and the plurality of water-isolating rings are arranged at intervals along the axial direction of the furnace core tube; the cooling water collection pool is arranged below the furnace core tube; The first cooling water pipe rack is installed above the furnace core tube, the first cooling water pipe extends along the length of the furnace core tube, the input end of the first cooling water pipe is connected to the output end of the cooling device, and the input end of the cooling device is connected to the bottom of the cooling water collection tank; the cooling device is used to cool the cooling water; The first cooling water pipe is provided with a plurality of water spray holes, and the plurality of water spray holes are distributed at intervals along the length direction on the bottom surface of the first cooling water pipe, and the plurality of water spray holes are arranged at intervals above the plurality of water isolation rings.

2. The water cooling mechanism for furnace core tube according to claim 1, characterized in that: The cooling device includes a cooling water input pipe, a cooling water tower, a cooling water circulation pool, a cooling water output pipe and at least two circulating water pumps; The input end of the cooling water input pipe is connected to the bottom of the cooling water collecting pool, and the output end of the cooling water input pipe is connected to the input end of the cooling water tower, and the input end of the cooling water tower is located at the top of the cooling water tower; the cooling water circulation pool is installed below the cooling water tower, the input end of the cooling water output pipe is connected to the bottom of the cooling water circulation pool, and the output end of the cooling water output pipe is connected to the input end of the first cooling water pipe; the two circulating water pumps are respectively installed in the middle of the cooling water input pipe and the middle of the first cooling water pipe.

3. The water cooling mechanism for furnace core tube according to claim 2, characterized in that: The cooling device also includes two filters; The filter is installed close to the input end of the circulating water pump of the cooling water input pipe or the input end of the circulating water pump of the cooling water output pipe.

4. The water cooling mechanism for furnace core tube according to claim 2, characterized in that: The cooling device further includes a check valve; The check valve is installed close to the output end of the circulating water pump of the cooling water inlet pipe or the output end of the circulating water pump of the cooling water output pipe.

5. The water cooling mechanism for furnace core tube according to claim 2, characterized in that: The cooling device also includes a water temperature detector, a water pressure detector and a flow detector; The cooling water inlet pipe and the cooling water outlet pipe are both installed with the water temperature detector; The water pressure detector and the flow detector are respectively installed on the cooling water output pipe.

6. The water cooling mechanism for furnace core tube according to claim 1, characterized in that: The cooling device further includes a second cooling water pipe; The second cooling water pipe rack is installed below the furnace core tube, and the second cooling water pipe extends along the length direction of the furnace core tube. The input end of the second cooling water pipe is connected to the output end of the cooling device through a pipeline. The second cooling water pipe is provided with a plurality of water spray holes, and the plurality of water spray holes are spaced apart and distributed on the top surface of the second cooling water pipe along the length direction.

7. The water cooling mechanism for furnace core tube according to claim 2, characterized in that: Also includes a cover; The top of the cover covers the first cooling water pipe and the plurality of water isolation rings, and the bottom edge of the cover is connected to the side surface of the cooling water collecting tank.

8. The water cooling mechanism for furnace core tube according to claim 7, characterized in that: It also includes an exhaust pipe; the top of the cover is also provided with a plurality of upwardly protruding exhaust parts; The exhaust part is hollow and has a conical shape with a small top and a large bottom; the input end of the exhaust pipe is connected to the top of the exhaust part, and the output end of the exhaust pipe is connected to the input end of an external exhaust device.

9. The water cooling mechanism for furnace core tube according to claim 1, characterized in that: Also includes a blowdown valve and level gauge; The input port of the drain valve is connected to the bottom of the cooling water collection tank, and the output port of the drain valve is connected to the external sewage drain; The liquid level meter is installed on the side of the cooling water collecting tank.

10. The water cooling mechanism for furnace core tube according to claim 1, characterized in that: The water isolation ring is provided with a plurality of through holes; The through hole penetrates the water isolation ring in the axial direction, and a plurality of the through holes are arranged at intervals along the outer circumference of the water isolation ring.

Images