Water blowing system of water-cooled kiln

Abstract

The utility model relates to a water blowing system of a water-cooled kiln, which is characterized in that a water segregator is higher than a heat exchange water jacket, and the heat exchange water jacket is higher than a water return tank; a water inlet, an air inlet and a plurality of water distribution pipes are arranged on the water distributor, a first valve is arranged on the water inlet, a second valve is arranged on the air inlet, and a third valve is arranged on each water distribution pipe; the high-pressure air pipe is connected with the air inlet through a screw head, a water inlet of the heat exchange water jacket is connected with the water distribution pipe, and a water outlet of the heat exchange water jacket is connected with the water return tank; and an air hole is formed in the water return tank. The air inlets are formed in the water segregators and connected with the high-pressure air pipes, water blowing operation can be conducted on the heat exchange water jackets connected with the same water segregator at the same time, and the water blowing efficiency is greatly improved; and third valves are arranged on the water distribution pipes, so that the system can also perform water blowing operation on a single heat exchange water jacket.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to a water blowing system of a water-cooled furnace. Background Art

[0002] During the metal smelting process, the furnace needs to be cooled to ensure stable operation. Currently, the typical method for cooling furnaces is to install a heat exchanger jacket on the outer wall of the furnace. The heat exchanger jacket is made of a material with a high thermal conductivity. Water flows through the jacket, exchanging heat with the furnace wall, maintaining the wall temperature at 400-500°C, far below the melting point of the slag. The slag forms a slag crust on the inner wall of the furnace, protecting the furnace wall from erosion by the high-temperature slag, thereby ensuring the long-term use of the metallurgical furnace. Before repairing the heat exchanger jacket, any excess water inside the water pipes and heat exchanger jacket needs to be purged to prevent the refractory material on the outer wall of the furnace from becoming pulverized and losing its original properties during repair. In the prior art, before overhauling the water exchange jacket, each water exchange jacket needs to be disassembled and separated from the corresponding water distribution pipe, and the air duct is connected to the water exchange jacket and the water distribution pipe respectively by wrapping with adhesive tape for water blowing. Due to the large number of water jackets, the water blowing method has a large workload, a long overhaul period, and low overhaul efficiency. At the same time, air leakage is easy to occur when the air duct is connected to the water exchange jacket and the water distribution pipe, resulting in the residual water not being blown away completely, causing the refractory material to be soaked in water during overhaul. Utility Model Content

[0003] In response to the problems of low water blowing efficiency and easy air leakage when the air duct is connected to the water exchange water jacket and the water distribution pipe in the above-mentioned prior art, the utility model provides a water blowing system for a water-cooled furnace, which can simultaneously blow water on the water exchange water jackets connected to the same water distributor, greatly improving the water blowing efficiency; the water distributor and the high-pressure air duct are connected by a thread head to avoid the occurrence of air leakage.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] A water blowing system for a water-cooled furnace, comprising a high-pressure air duct, a water distributor, a heat exchange water jacket, a return water tank and a control system; the water distributor is higher than the heat exchange water jacket, which is higher than the return water tank; the water distributor is provided with a water inlet, an air inlet and a plurality of water distribution pipes, the water inlet is provided with a first valve, the air inlet is provided with a second valve, and each of the water distribution pipes is provided with a third valve; the high-pressure air duct is connected to the air inlet via a threaded head, a pressure regulating valve is provided between the high-pressure air duct and the air inlet, the water inlet of the heat exchange water jacket is connected to the water distribution pipe, and the water outlet of the heat exchange water jacket is connected to the return water tank; the return water tank is provided with an air hole, and the air hole is provided with a one-way valve; the control system is connected to the first valve, the second valve, the third valve and the pressure regulating valve.

[0006] Furthermore, the first valve and the third valve are butterfly valves, ball valves or stop valves.

[0007] Furthermore, the second valve is a butterfly valve or a ball valve.

[0008] Furthermore, a water level monitoring device is provided on the return water tank.

[0009] Furthermore, a wind pressure monitoring device is provided on the high-pressure air duct.

[0010] Furthermore, the one-way valve is a spring-type one-way valve, a diaphragm one-way valve or a ball-type one-way valve.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model provides a water blowing system for a water-cooled furnace. The system has a simple structure and is easy to operate. By arranging an air inlet on a water distributor and connecting a high-pressure air duct, water blowing operations can be performed on the heat exchange water jacket connected to the same water distributor at the same time, thereby greatly improving the water blowing efficiency. A third valve is provided on each water distributor, so that the system can also perform water blowing operations on a single heat exchange water jacket. The air inlet and the high-pressure air duct are connected by a threaded head, thereby avoiding air leakage and achieving a better water blowing effect. In addition, the heights of the water distributor, the heat exchange water jacket and the return water tank in the system are successively reduced, so that a better water blowing effect can be achieved by high-pressure air with a relatively low pressure, thereby reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further describes the embodiments of the present invention with reference to the accompanying drawings, wherein:

[0014] Figure 1 A schematic structural diagram of an embodiment of a high-pressure air duct and a water distributor is shown;

[0015] Figure identification: 1-high pressure air duct, 2-water distributor, 3-water inlet, 4-air inlet, 5-water distribution pipe, 6-first valve, 7-thread head. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0017] Reference Attachment Figure 1A water blowing system for a water-cooled furnace comprises a high-pressure air duct 1, a water distributor 2, a heat exchange water jacket, a return water tank and a control system; the water distributor 2 is higher than the heat exchange water jacket, which is higher than the return water tank; the water distributor 2 is provided with a water inlet 3, an air inlet 4 and a plurality of water distribution pipes 5, the water inlet 3 is provided with a first valve 6, the air inlet 4 is provided with a second valve, and each water distribution pipe 5 is provided with a third valve; the high-pressure air duct 1 is connected to the air inlet 4 through a threaded head 7, and a pressure regulating valve is provided between the high-pressure air duct 1 and the air inlet 4, which can adjust the air pressure in the water distributor. To adapt to the water blowing needs under different working conditions and prevent damage to the equipment caused by excessive air pressure; the water inlet of the heat exchanger jacket is connected to the water distribution pipe 5, and the water outlet of the heat exchanger jacket is connected to the return water tank; the return water tank is provided with an air hole, and the air hole is provided with a one-way valve to allow the gas in the return water tank to be discharged in one direction to prevent external gas or water from flowing back into the return water tank; the control system is connected to the first valve 6, the second valve, the third valve and the pressure regulating valve, and is used to automatically control the opening and closing and adjustment of the valves according to preset parameters to realize the intelligent operation of the entire water blowing system.

[0018] In one embodiment of the present invention, the first valve 6 and the third valve are butterfly valves, ball valves or stop valves.

[0019] In one embodiment of the present invention, the second valve is a butterfly valve or a ball valve, which can adjust the flow rate of the incoming gas.

[0020] In one embodiment of the present invention, a water level monitoring device is provided on the return water tank for monitoring the water level in the return water tank in real time so as to drain the water in the return water tank in time.

[0021] In one embodiment of the present invention, a wind pressure monitoring device is provided on the high-pressure air duct 1 for monitoring the gas pressure in the high-pressure air duct 1 in real time and feeding back the pressure data to the control system so that the control system adjusts the opening of the pressure regulating valve according to the pressure data.

[0022] In one embodiment of the present invention, the one-way valve is a spring-type one-way valve, a diaphragm one-way valve or a ball-type one-way valve.

[0023] When in use, close the first valve 6, stop flowing water into the water distributor 2, open the third valve on the water distribution pipe 5 connected to the hot water jacket that needs to be blown, adjust the pressure regulating valve to an appropriate pressure, adjust the second valve, and high-pressure air is blown into the water distributor 2 at an appropriate flow rate through the high-pressure air pipe 1, and then blown into the hot water jacket, blowing away the water in the water distributor 2 and the hot water jacket. The blown water falls into the return water tank, and the high-pressure air is discharged through the air holes on the return water tank.

[0024] The utility model provides a kind of water blowing system of water-cooled furnace, this system simple structure, convenient operation, by being provided with air inlet and being connected high pressure air pipe on water distributor, can simultaneously carry out water blowing operation to the heat exchange water jacket connected to same water distributor, greatly improve water blowing efficiency;Water distributor, heat exchange water jacket and the height of return tank three in this system are sequentially reduced, can reach better water blowing effect by small pressure high pressure air, reduce energy consumption.

[0025] Some example embodiments of the utility model are described above, it can be understood that the above-mentioned embodiments are only used to explain the utility model, and do not constitute the limitation to the protection scope of the utility model. The features in these embodiments can be recombined in a suitable manner, and the schemes obtained thereby are still within the protection scope required by the utility model. Based on the above-mentioned embodiments, all other embodiments obtained by the person skilled in the art without making creative labor, i. e. all modifications, equivalent replacements and improvements etc. made within the spirit and principles of the present application, are within the protection scope required by the utility model.

Claims

1. A water blowing system for a water-cooled furnace, characterized in that: The invention comprises a high-pressure air duct (1), a water distributor (2), a heat exchange water jacket, a return water tank and a control system; the water distributor (2) is higher than the heat exchange water jacket, and the heat exchange water jacket is higher than the return water tank; the water distributor (2) is provided with a water inlet (3), an air inlet (4) and a plurality of water distribution pipes (5); the water inlet (3) is provided with a first valve (6), the air inlet (4) is provided with a second valve, and each of the water distribution pipes (5) is provided with a third valve; the high-pressure air duct (1) is connected to the air inlet (4) through a thread (7); a pressure regulating valve is provided between the high-pressure air duct (1) and the air inlet (4); the water inlet of the heat exchange water jacket is connected to the water distribution pipe (5), and the water outlet of the heat exchange water jacket is connected to the return water tank; an air hole is provided on the return water tank, and a one-way valve is provided on the air hole; the control system is connected to the first valve (6), the second valve, the third valve and the pressure regulating valve.

2. The water blowing system of a water-cooled furnace according to claim 1, characterized in that: The first valve (6) and the third valve are butterfly valves, ball valves or stop valves.

3. The water blowing system of a water-cooled furnace according to claim 1, characterized in that: The second valve is a butterfly valve or a ball valve.

4. The water blowing system of a water-cooled furnace according to claim 1, characterized in that: The return water tank is provided with a water level monitoring device.

5. The water blowing system of a water-cooled furnace according to claim 1, characterized in that: The high-pressure air duct (1) is provided with an air pressure monitoring device.

6. The water blowing system of a water-cooled furnace according to claim 1, characterized in that: The one-way valve is a spring-type one-way valve, a diaphragm one-way valve or a ball-type one-way valve.

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