Blast furnace slag flushing water residual heat utilization device

Abstract

The utility model discloses a blast furnace slag flushing water waste heat utilization device, including the water storage pool, the water storage pool left side outer wall is provided with the water inlet pipe, the water storage pool inner wall fixed mounting has the filter screen, the filter screen below is provided with the deflector, the deflector installs in the water storage pool below inner wall, the water storage pool right side is provided with the water storage mechanism, the water storage mechanism includes the water inlet pipe, check valve, water storage tank, heat preservation cover, water pump valve and delivery pipe, the water inlet pipe outer wall top fixed connection has check valve, the water inlet pipe input fixed connection has water storage tank. This one kind blast furnace slag flushing water waste heat utilization device, is filtered to blast furnace slag flushing water through the double -deck filter screen of setting up in the water storage pool, reduces the particle that blast furnace slag flushing water contains, and water storage tank stores the blast furnace slag flushing water with waste heat, and the heat preservation cover of water storage tank outside can play the heat preservation effect, avoids the blast furnace slag flushing water temperature loss in the water storage tank box inside, can long -term storage to blast furnace slag flushing water.

Description

Technical Field

[0001] This utility model relates to the technical field of waste heat recovery, specifically a device for utilizing waste heat from blast furnace slag flushing water. Background Technology

[0002] In the blast furnace ironmaking process of steel plants, the slag produced has a temperature of approximately 1000℃. This slag is rapidly cooled and granulated into water-cooled slag by a high-speed water flow supplied by a slag flushing pump within the slag flushing box for production use. This process generates a large amount of low-temperature hot water at a temperature of 80-95℃, known as blast furnace slag flushing water. The characteristics of this low-temperature waste heat are: a relatively low heat source temperature and a large flow rate. The flow rate and temperature of the blast furnace slag flushing water fluctuate to some extent due to factors such as blast furnace smelting, water supply, and operational procedures. Furthermore, the blast furnace slag flushing water contains an unspecified amount of solid slag particles, which can form deposits and scale.

[0003] The currently used waste heat recovery devices for blast furnace slag flushing water do not have external insulation measures for the hot water storage tanks, which easily leads to heat loss. Utility Model Content

[0004] The purpose of this utility model is to provide a waste heat recovery device for blast furnace slag flushing water, so as to solve the problem mentioned in the background art that the hot water storage tank for recovering heat in the blast furnace slag flushing water waste heat recovery device does not have external insulation measures, which easily leads to temperature loss.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a waste heat utilization device for blast furnace slag flushing water, comprising a water storage tank, an inlet pipe provided on the outer wall of the left side of the water storage tank, a filter screen fixedly installed on the inner wall of the water storage tank, a guide plate provided below the filter screen, the guide plate being installed on the inner wall below the water storage tank, and a water storage mechanism provided on the right side of the water storage tank.

[0006] The water storage mechanism includes an inlet pipe, a one-way valve, a water storage tank, an insulation sleeve, a pumping valve, and a delivery pipe. The one-way valve is fixedly connected to the upper part of the outer wall of the inlet pipe, and the water storage tank is fixedly connected to the input end of the inlet pipe. An insulation sleeve is fixedly connected to the outer wall of the water storage tank. A pumping valve is provided on the right outer wall of the water storage tank. The pumping valve is installed on the delivery pipe, and the delivery pipe is connected to the water storage tank.

[0007] Preferably, the insulation sleeve matches the shape and size of the water storage tank, and the insulation sleeve fits tightly against the water storage tank.

[0008] Preferably, the water inlet pipe is connected to the water storage tank.

[0009] Preferably, an air inlet pipe is fixedly connected to the upper part of the outer wall of the water storage tank, and an exhaust fan is fixedly installed at the end of the air inlet pipe away from the water storage tank, and an air outlet pipe is fixedly connected to the output end of the exhaust fan.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This blast furnace slag flushing water waste heat utilization device filters the blast furnace slag flushing water through a double-layer filter screen installed in the water storage tank to reduce the particles contained in the blast furnace slag flushing water. The water storage tank stores the blast furnace slag flushing water with waste heat. The heat insulation sleeve on the outside of the water storage tank can play a heat preservation role to prevent the temperature of the blast furnace slag flushing water inside the water storage tank from being lost. The blast furnace slag flushing water can be stored for a long time.

[0012] 2. This waste heat utilization device for blast furnace slag flushing water absorbs the heat emitted from the blast furnace slag flushing water through an exhaust fan, reducing the heat loss during storage and effectively utilizing thermal energy. Attached Figure Description

[0013] Figure 1 This is a front sectional view of the present invention;

[0014] Figure 2 This is a drawing of the water storage mechanism of this utility model.

[0015] In the diagram: 1. Water storage tank; 101. Water inlet pipe; 102. Filter screen; 103. Guide plate; 2. Water storage mechanism; 201. Water inlet pipe; 202. One-way valve; 203. Water storage tank; 204. Insulation sleeve; 205. Water pumping valve; 206. Delivery pipe; 3. Air inlet pipe; 4. Exhaust fan; 5. Air outlet pipe. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-2This utility model provides a technical solution: a waste heat utilization device for blast furnace slag flushing water, including a water storage tank 1. A water inlet pipe 101 is installed on the outer left wall of the water storage tank 1. A filter screen 102 is fixedly installed on the inner wall of the water storage tank 1. A guide plate 103 is installed below the filter screen 102 and is mounted on the lower inner wall of the water storage tank 1. A water storage mechanism 2 is installed on the right side of the water storage tank 1. The water storage mechanism 2 includes a water inlet pipe 201, a one-way valve 202, a water storage tank 203, an insulation sleeve 204, a pumping valve 205, and a conveying pipe 206. The water inlet pipe 201 is connected to the water storage tank 1. A one-way valve 202 is fixedly connected to the upper part of the outer wall of the water inlet pipe 201. A water storage tank 203 is fixedly connected to the input end of the water inlet pipe 201. 3. An insulation sleeve 204 is fixedly connected to the outer wall. A water pumping valve 205 is installed on the right outer wall of the water storage tank 203. The water pumping valve 205 is installed on the conveying pipe 206, which is connected to the water storage tank 203. The insulation sleeve 204 and the water storage tank 203 are in the same shape and size. The insulation sleeve 204 and the water storage tank 203 are tightly fitted. The blast furnace slag flushing water is filtered by the double-layer filter screen 102 installed in the water storage tank 1 to reduce the particles contained in the blast furnace slag flushing water. The water storage tank 203 stores the blast furnace slag flushing water with residual heat. The insulation sleeve 204 on the outside of the water storage tank 203 can play a heat preservation role to prevent the temperature of the blast furnace slag flushing water inside the water storage tank 203 from being lost. The blast furnace slag flushing water can be stored for a long time.

[0018] An air inlet pipe 3 is fixedly connected to the upper part of the outer wall of the water storage tank 203. An exhaust fan 4 is fixedly installed at the end of the air inlet pipe 3 away from the water storage tank 203. An air outlet pipe 5 is fixedly connected to the output end of the exhaust fan 4. The exhaust fan 4 absorbs the heat emitted from the blast furnace slag flushing water, reduces the heat volatilization during storage, and effectively utilizes thermal energy.

[0019] Working principle: In use, the blast furnace slag flushing water first enters the storage tank 1 through the inlet pipe 101. The double-layer filter screen 102 installed in the storage tank 1 filters the blast furnace slag flushing water, reducing the particles contained in the blast furnace slag flushing water. The guide plate 103 guides the falling blast furnace slag flushing water. The blast furnace slag flushing water settles again in the storage tank 1. The one-way valve 202 is opened, and the blast furnace slag flushing water after settling enters the water storage tank 203. The heat insulation sleeve 204 on the outside of the water storage tank 203 can play a heat preservation role, preventing the blast furnace slag flushing water inside the water storage tank 203 from losing temperature. The blast furnace slag flushing water can be stored for a long time. The heat emitted by the blast furnace slag flushing water is absorbed by the exhaust fan 4, reducing the heat volatilization during storage and effectively utilizing thermal energy. This completes the operation process of a blast furnace slag flushing water waste heat utilization device.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A blast furnace slag flushing water waste heat utilization device, characterized in that, The system includes a water storage tank (1), an inlet pipe (101) is provided on the outer left side of the water storage tank (1), a filter screen (102) is fixedly installed on the inner wall of the water storage tank (1), a guide plate (103) is provided below the filter screen (102), the guide plate (103) is installed on the inner wall below the water storage tank (1), and a water storage mechanism (2) is provided on the right side of the water storage tank (1). The water storage mechanism (2) includes an inlet pipe (201), a one-way valve (202), a water storage tank (203), an insulation sleeve (204), a pumping valve (205), and a delivery pipe (206). The one-way valve (202) is fixedly connected to the upper part of the outer wall of the inlet pipe (201). The water storage tank (203) is fixedly connected to the input end of the inlet pipe (201). The insulation sleeve (204) is fixedly connected to the outer wall of the water storage tank (203). The pumping valve (205) is provided on the outer right side of the water storage tank (203). The pumping valve (205) is installed on the delivery pipe (206). The delivery pipe (206) is connected to the water storage tank (203).

2. The blast furnace slag flushing water residual heat utilization device according to claim 1, characterized in that: The insulation sleeve (204) and the water storage tank (203) are in the same shape and size, and the insulation sleeve (204) and the water storage tank (203) are tightly fitted.

3. The blast furnace slag flushing water residual heat utilization device according to claim 1, characterized in that: The water inlet pipe (201) is connected to the water storage tank (1).

4. The blast furnace slag flushing water residual heat utilization device according to claim 1, characterized in that: An air inlet pipe (3) is fixedly connected to the upper part of the outer wall of the water storage tank (203). An exhaust fan (4) is fixedly installed at the end of the air inlet pipe (3) away from the water storage tank (203). An air outlet pipe (5) is fixedly connected to the output end of the exhaust fan (4).

Images