CN111748664B - A blast furnace ironmaking slag heat utilization system - Google Patents

Abstract

The invention discloses a blast furnace ironmaking slag heat utilization system which comprises an operation box and a water storage box, wherein a pump body is fixedly installed at the bottom of an inner cavity of the water storage box, an output end of the pump body is fixedly connected with a water inlet water distribution pipe through a pipeline, and the right side of the water inlet water distribution pipe is fixedly connected to the left side of the outer surface of the operation box. According to the invention, a large amount of high-temperature slag is filled into the operation box through the feed inlet, at the moment, the pump body is controlled to work, so that water flow flows to the water inlet shunt pipe along the pipeline under the driving action of the pump body, the water inlet shunt pipe shunts the water flow to the heat exchange pipe, and the water body passes through the heat exchange pipe, so that the heat emitted by the slag is quickly absorbed, the water body is quickly heated, and the high-temperature water body in the heat exchange pipe is driven to flow through the main water outlet pipe through the continuous work of the pump body and then is led to the home of a resident user from the heating pipeline.

Description

A blast furnace ironmaking slag heat utilization system

technical field

The invention relates to the technical field of heat utilization, in particular to a blast furnace ironmaking slag heat utilization system.

Background technique

There are dozens of large-scale steelmaking plants in my country. Every year, the steelmaking plants will produce a large amount of slag during the steelmaking process. These slag will carry a high amount of heat when they are discharged. Transport after cooling down, resulting in a great waste of slag heat.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a blast furnace ironmaking slag heat utilization system, which has the advantage of heat recovery, and solves the problem of great waste of slag heat caused by the traditional steelmaking slag treatment method.

In order to achieve the above purpose, the present invention provides the following technical solutions: a blast furnace ironmaking slag heat utilization system, comprising an operation box and a water storage tank, a pump body is fixedly installed at the bottom of the inner cavity of the water storage tank, and the pump body is The output end of the water inlet is fixedly connected with a water inlet pipe through a pipeline, and the right side of the water inlet pipe is fixedly connected to the left side of the outer surface of the operation box, and the right side of the water inlet pipe is fixedly connected with a heat exchange pipe. The right side of the heat exchange pipe is fixedly connected with a general water outlet pipe, and the left side of the general water outlet pipe is fixedly connected to the right side of the outer surface of the operation box, the right side of the general water outlet pipe is fixedly connected with a heating pipe, and the inside of the operation box is fixedly connected with a heating pipe. A temperature sensor is fixedly connected to the upper end of the left side of the cavity, a filter box is fixedly installed on the left side of the top of the operation box, and the input end of the filter box is fixedly connected to the left side of the top of the operation box, and the inner cavity of the filter box is fixedly connected There is a filter screen, the top of the output end of the filter box is fixedly connected with a water blocking plate through a bracket, the bottom of the operation box is provided with a discharge port, and the bottom of the discharge port is fixedly connected with a conveying box, and the bottom of the conveying box is on the right side. The lower end of the side is screwed with a sealing cover, the right side of the outer surface of the conveying box is fixedly connected with a conveying motor through a bracket, the output end of the conveying motor is fixedly connected with a conveying shaft, and both ends of the outer surface of the conveying shaft pass through bearings. It is movably connected to both sides of the surface of the conveying box, and the outer surface of the conveying shaft is fixedly connected with a spiral fan blade.

Preferably, fixing blocks are fixedly connected around the outer surface of the operation box, and supporting legs are fixedly connected to the bottom of the fixing blocks.

Preferably, the top of the operation box is provided with a feeding port, and the upper end of the feeding port is screwed with a screw cap.

Preferably, the upper end of the water storage tank is provided with a water injection port, and the upper end of the water injection port is screwed with a dust cover.

Preferably, an observation port is opened on the front surface of the water storage tank, and transparent tempered glass is provided on the inner side of the observation port.

Preferably, the number of the heat exchange tubes is four, and the heat exchange tubes are placed in a rectangular shape inside the operation box.

Preferably, a blower is fixedly installed on the upper end of the right side of the outer surface of the operation box through a bracket, a ventilation pipe is fixedly connected to the output end of the blower, and the outer surface of the ventilation pipe is fixedly connected to the left side of the inner cavity of the operation box.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. In the present invention, a large amount of high-temperature slag is injected into the operation box through the feeding port. At this time, by controlling the operation of the pump body, the water flow can flow along the pipeline to the water inlet water pipe under the driving action of the pump body. The water distribution pipe divides the water flow to the heat exchange pipe. Due to the high temperature of the slag, when the water body passes through the heat exchange pipe, it will quickly absorb the heat emitted by the slag, resulting in the rapid heating of the water body and the continuous work through the pump body. The high-temperature water inside the heat exchange pipe is driven to flow through the main outlet pipe and then lead from the heating pipe to the home of the residential user. It can heat the residential home in the cold winter and use hot water for washing, which reduces the heat consumption of the slag. It reduces the power consumption caused by heating in the user's home, is more energy-saving and environmentally friendly, and solves the problem of great waste of slag heat caused by the traditional slag treatment method in steelmaking plants.

2. The present invention monitors the temperature inside the operation box through a temperature sensor. When the temperature inside the operation box is low, the pump body stops working, and the operation of the blower drives the outside air flow to the inside of the operation box to cool the slag, which is convenient for later. The slag is transported, and through the setting of the filter box, the gas discharged under the action of the blower can be filtered by dust, which reduces the pollution to the air. , which can quickly discharge the low-temperature slag.

Description of drawings

1 is a schematic structural diagram of an embodiment of the present invention;

Fig. 2 is the external view of Fig. 1;

FIG. 3 is a schematic top view of the structure of the heat exchange tube of the present invention.

In the figure: 1. Supporting legs; 2. Conveying box; 3. Conveying motor; 4. Observation port; 5. Pump body; 6. Water storage tank; 7. Water injection port; 8. Fixed block; 9. Water inlet pipe ; 10, heat exchange pipe; 11, temperature sensor; 12, filter box; 13, filter screen; 14, water baffle; 15, feed inlet; 16, ventilation pipe; 17, blower; 18, main outlet pipe; 19 , heating pipeline; 20, discharge port; 21, conveying shaft; 22, spiral fan blade; 23, operation box.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of this application document, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal" , "top", "bottom", "inside", "outside" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or It is implied that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as a limitation of this patent. In the description of this application document, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected" and "arranged" should be understood in a broad sense, for example, it may be a fixed connection, The setting can also be a detachable connection and setting, or an integral connection and setting. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific situations.

1-3, a blast furnace ironmaking slag heat utilization system includes an operation box 23 and a water storage tank 6. The upper end of the water storage tank 6 is provided with a water injection port 7, and the upper end of the water injection port 7 is threaded Dust cover, the front surface of the water storage tank 6 is provided with an observation port 4, and the inner side of the observation port 4 is provided with transparent tempered glass, the bottom of the inner cavity of the water storage tank 6 is fixedly installed with a pump body 5, and the output end of the pump body 5 passes through The pipeline is fixedly connected with a water inlet water pipe 9, and the right side of the water inlet water pipe 9 is fixedly connected to the left side of the outer surface of the operation box 23, and the right side of the water inlet water pipe 9 is fixedly connected with a heat exchange pipe 10, and the heat exchange pipe The number of 10 is four, and the heat exchange pipe 10 is placed in a rectangular shape inside the operation box 23 , the right side of the heat exchange pipe 10 is fixedly connected with the general water outlet pipe 18 , and the left side of the general water outlet pipe 18 is fixedly connected to the operation box 23 On the right side of the outer surface, the heating pipe 19 is fixedly connected to the right side of the main water outlet pipe 18, and the periphery of the outer surface of the operation box 23 is fixedly connected with a fixed block 8, and the bottom of the fixed block 8 is fixedly connected with a support leg 1, and the operation box 23 There is a feed port 15 on the top of the hood, and the upper end of the feed port 15 is threadedly connected with a threaded cover, the upper end of the right side of the outer surface of the operation box 23 is fixedly installed with a blower 17 through a bracket, and the output end of the blower 17 is fixedly connected with a ventilation pipe 16 , and the outer surface of the ventilation pipe 16 is fixedly connected to the left side of the inner cavity of the operation box 23, the upper end of the left side of the inner cavity of the operation box 23 is fixedly connected with the temperature sensor 11, and the left side of the top of the operation box 23 is fixedly installed with the filter box 12, And the input end of the filter box 12 is fixedly connected to the left side of the top of the operation box 23, the inner cavity of the filter box 12 is fixedly connected with the filter screen 13, and the top of the output end of the filter box 12 is fixedly connected with the water baffle 14 through the bracket, and the operation box 23 There is a discharge port 20 at the bottom of the discharge port 20, the bottom of the discharge port 20 is fixedly connected with the conveying box 2, and the lower end of the bottom right side of the conveying box 2 is screwed with a sealing cover, and the right side of the outer surface of the conveying box 2 is fixedly connected with a bracket. The conveying motor 3, the output end of the conveying motor 3 is fixedly connected with a conveying shaft 21, and both ends of the outer surface of the conveying shaft 21 are movably connected to both sides of the surface of the conveying box 2 through bearings, and the outer surface of the conveying shaft 21 is fixedly connected with a spiral Shaped fan blades 22, the temperature inside the operation box 23 is monitored by the temperature sensor 11, when the temperature inside the operation box 23 is low, the pump body 5 stops working, and the work of the blower 17 drives the outside air flow to the inside of the operation box 23, The slag is cooled to facilitate the subsequent transportation of the slag. The setting of the filter box 12 can filter the dust of the gas discharged under the action of the blower 17, thereby reducing the pollution to the air. The operation of the conveying motor 3 drives the conveying shaft 21 to rotate. , the rotation of the conveying shaft 21 can drive the spiral fan blades 22 to rotate, and the low-temperature slag can be quickly discharged. Under the driving action of the pump body 5, the water flow flows along the pipeline to the water inlet water pipe 9, and the water inlet water pipe 9 divides the water flow and flows to the heat exchange pipe 10. The temperature of the slag is relatively high. When the water body passes through the heat exchange tube 10, the heat emitted by the slag will be rapidly absorbed, resulting in a rapid temperature rise of the water body, and the continuous operation of the pump body 5 drives the high temperature water flow inside the heat exchange tube 10. After passing through the main water outlet pipe 18, the heating pipe 19 leads to the home of the residential user, which can heat the residential home in the cold winter and use hot water for washing, which reduces the heat consumption of the slag and reduces the heating in the user's home. The resulting power consumption is more energy-saving and environmentally friendly, and the problem of great waste of slag heat caused by the traditional slag treatment method in steelmaking plants is solved.

All components in the present invention are general standard components or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or through routine experimental methods. All standard parts can be purchased from the market, and each part in this application document can be customized according to the description in the description and the attached drawings, and the specific connection method of each part adopts the mature bolts, rivets, welding and other conventional techniques in the prior art. The means, machinery, parts and equipment all use conventional models in the prior art, the control method is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art, which belongs to the common knowledge in the art. , and this application document is mainly used to protect the mechanical device, so this application document will not explain the control mode and circuit connection in detail, and will not make a specific description here.

When in use, a large amount of high-temperature slag is injected into the operation box 23 through the feeding port 15, and at this time, by controlling the operation of the pump body 5, the water flow is driven by the pump body 5 to flow along the pipeline to the water inlet water pipe. 9. The water inlet water pipe 9 divides the water flow and flows to the heat exchange pipe 10. Due to the high temperature of the slag, when the water body passes through the heat exchange pipe 10, it will quickly absorb the heat emitted by the slag, resulting in the rapid heating of the water body. Through the continuous operation of the pump body 5, the high-temperature water body inside the heat exchange pipe 10 is driven to flow through the main water outlet pipe 18 and then from the heating pipe 19 to the home of the residential user, which can heat the residential home in the cold winter and use the hot water at the same time. Washing, while reducing the heat consumption of the slag, reduces the power consumption caused by heating in the user's home, and is more energy-saving and environmentally friendly. The temperature inside the operation box 23 is monitored by the temperature sensor 11. When it is low, the pump body 5 stops working, and the external air flow is driven to flow to the inside of the operation box 23 by the work of the blower 17, and the temperature of the slag is lowered, which is convenient for the transportation of the slag later. The gas is filtered by dust, which reduces the pollution to the air. The conveying shaft 21 is driven to rotate by the operation of the conveying motor 3, and the rotation of the conveying shaft 21 can drive the spiral fan blades 22 to rotate, which can quickly discharge the low-temperature slag.

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, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. A blast furnace ironmaking slag heat utilization system, comprising an operation box (23) and a water storage tank (6), characterized in that: the operation box (23) is a vertical structure, and the water storage tank (6) ) A pump body (5) is fixedly installed at the bottom of the inner cavity, the output end of the pump body (5) is fixedly connected with a water inlet water pipe (9) through a pipeline, and the right side of the water inlet water pipe (9) is fixedly connected On the left side of the outer surface of the operation box (23), a heat exchange pipe (10) is fixedly connected to the right side of the water inlet and water pipe (9), and a general outlet pipe (10) is fixedly connected to the right side of the heat exchange pipe (10). A water pipe (18), and the left side of the main water outlet pipe (18) is fixedly connected to the right side of the outer surface of the operation box (23), and the right side of the general water outlet pipe (18) is fixedly connected with a heating pipe (19), so A temperature sensor (11) is fixedly connected to the upper end of the left side of the inner cavity of the operation box (23), a filter box (12) is fixedly installed on the left side of the top of the operation box (23), and the input end of the filter box (12) It is fixedly connected to the left side of the top of the operation box (23), the inner cavity of the filter box (12) is fixedly connected with a filter screen (13), and the top of the output end of the filter box (12) is fixedly connected with a water baffle through a bracket (14), a discharge port (20) is opened at the bottom of the operation box (23), the molten slag falls from the feed port to the discharge port, and the bottom of the discharge port (20) is fixedly connected with a conveying port. box (2), and the lower end of the bottom right side of the conveying box (2) is screwed with a sealing cover, the right side of the outer surface of the conveying box (2) is fixedly connected with a conveying motor (3) through a bracket, and the conveying motor ( 3) The output end of the conveying shaft (21) is fixedly connected, and both ends of the outer surface of the conveying shaft (21) are movably connected to both sides of the surface of the conveying box (2) through bearings. The surface is fixedly connected with a helical fan blade (22); the number of the heat exchange tubes (10) is four, and the heat exchange tubes (10) are placed in a rectangular shape inside the operation box (23), and the four heat exchange tubes (10) are placed in a rectangular shape. The pipe is connected in parallel between the water inlet pipe and the general water outlet pipe; the upper end on the right side of the outer surface of the operation box (23) is fixedly installed with a blower (17) through a bracket, and the output end of the blower (17) is fixedly connected with a ventilation fan A pipe (16) is provided, and the outer surface of the ventilation pipe (16) is fixedly connected to the left side of the inner cavity of the operation box (23). 2. A blast furnace ironmaking slag heat utilization system according to claim 1, characterized in that: fixing blocks (8) are fixedly connected around the outer surface of the operation box (23), and the fixing blocks ( The bottom of 8) is fixedly connected with support legs (1). 3 . The blast furnace ironmaking slag heat utilization system according to claim 1 , wherein: the top of the operation box ( 23 ) is provided with a feeding port ( 15 ), and the feeding port ( 15 ) has a feeding port ( 15 ). The upper end is threadedly connected with a threaded cover. 4. A blast furnace ironmaking slag heat utilization system according to claim 1, characterized in that: the upper end of the water storage tank (6) is provided with a water injection port (7), and the upper end of the water injection port (7) is provided with a water injection port (7). Threaded connections have dust caps. 5. A blast furnace ironmaking slag heat utilization system according to claim 1, characterized in that: an observation port (4) is provided on the front surface of the water storage tank (6), and the observation port (4) is provided with an observation port (4). The inner side is provided with transparent tempered glass.

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