Ash removal device for blast furnace

Abstract

The utility model relates to the technical field of blast furnace cleaning, and discloses a blast furnace ash removal device which comprises a furnace body, a detachable furnace cover is arranged at the top of the furnace body, a supporting sleeve is fixed on the outer wall of the bottom of the furnace body, a plurality of uniformly distributed supporting legs are fixed on the outer wall of the supporting sleeve, and an opening and closing plate convenient to open and close is arranged at the bottom of the furnace body; the ash removal mechanism is located in the furnace cover, and the ash removal mechanism comprises a water supply mechanism, a spraying mechanism and an extrusion mechanism; through the arrangement of the ash removal mechanism, dust of the blast furnace after smelting is completed can be removed, an airflow channel is increased, ventilation of the blast furnace and flowing of gas are improved, and therefore the smelting efficiency and yield of the blast furnace are improved, and the situation that accumulated dust possibly reacts with molten iron, and consequently impurities in the molten iron are increased is avoided; and meanwhile, the problems that the ash deposition problem in a traditional device possibly causes abnormal temperature rise of the furnace body, high-temperature danger is increased, and even accidents are possibly caused are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnace cleaning, in particular to a blast furnace dust cleaning device. Background Art

[0002] A blast furnace is an industrial furnace used to smelt iron ore. Its main function is to reduce the iron in the iron ore into iron metal. The working principle of the blast furnace is to use high temperature to reduce the iron oxide in the iron ore into iron, and at the same time use a fan to blow air into the furnace to promote combustion. The internal structure of the blast furnace usually includes the furnace body, furnace top, furnace cylinder and other parts. The temperature in the furnace can reach over 2000℃.

[0003] Traditional blast furnaces are used by reducing iron ore to iron, using coke as a fuel and reducing agent, and introducing air to promote combustion. First, raw materials such as iron ore, coke and limestone are loaded into the blast furnace in layers at the top of the blast furnace. Iron ore mainly provides iron oxide, coke provides fuel and carbon, and limestone is used to remove impurities. Preheated air is blown into the furnace through the tuyere at the bottom of the blast furnace. The input of air promotes the combustion of coke, thereby generating high-temperature gas. Finally, at high temperature, iron flows out of the bottom of the furnace by gravity to form molten iron, while limestone reacts with ore impurities to form slag, which floats on the molten iron and is discharged from the furnace mouth. However, after smelting, a lot of dust is easily accumulated inside the blast furnace, reducing the airflow channel, affecting the ventilation of the blast furnace and the flow of gas, thereby reducing the smelting efficiency and output of the blast furnace, and the accumulated dust may react with the molten iron, resulting in an increase in impurities in the molten iron. At the same time, the ash accumulation problem may cause the furnace body to heat up abnormally, increase the risk of high temperature, and even cause an accident. Utility Model Content

[0004] The utility model aims to provide a blast furnace cleaning device, which solves the problem in the background technology that it is difficult to clean the inside of the furnace body after smelting, resulting in a lot of dust easily accumulated inside.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A blast furnace dust cleaning device, comprising:

[0007] A furnace body, wherein a detachable furnace cover is arranged on the top of the furnace body, a support sleeve is fixed to the outer wall of the bottom of the furnace body, a plurality of evenly distributed support legs are fixed to the outer wall of the support sleeve, and an opening and closing plate for convenient opening and closing is arranged at the bottom of the furnace body;

[0008] A cleaning mechanism, which is located inside the furnace cover and is used to clean the accumulated ash inside the furnace body. The cleaning mechanism includes a water supply mechanism, a spraying mechanism and an extrusion mechanism. The water supply mechanism is located on one side of the furnace body and is used to supply water to the spraying mechanism. The spraying mechanism is located inside the furnace cover and is used to spray water. The extrusion mechanism is located on one side of the furnace cover and is used to squeeze and fix the spraying mechanism.

[0009] Preferably, the water supply mechanism comprises a water tank fixed to one side of the furnace body and a water supply pump installed inside the water tank, and a connecting pipe is installed at the water outlet end of the water supply pump, and the connecting pipe corresponds to the furnace cover.

[0010] Preferably, the spraying mechanism includes a mounting sleeve arranged inside the furnace cover and a water storage pipe installed inside the mounting sleeve, a plurality of evenly distributed spraying pipes are fixed to the bottom of the water storage pipe, a guide plate is fixed to the bottom of the mounting sleeve, the guide plate cooperates with the plurality of spraying pipes, and a connecting mechanism is provided between the mounting sleeve and the connecting pipe to connect the connecting pipe.

[0011] Preferably, the connection mechanism includes a plurality of inserting tubes plugged into the top of the furnace cover and a water flow pipe installed between the plurality of inserting tubes, and the plurality of inserting tubes extend into the interior of the installation sleeve and are plugged into the water storage pipe.

[0012] Preferably, a supporting mechanism for supporting the water flow pipe is arranged between the water flow pipe and the furnace cover, and the supporting mechanism includes a supporting seat and a mounting seat fixed to the top of the furnace cover, a second threaded rod is installed on the top of the mounting seat, and a movable plate is screwed on the outer wall of the second threaded rod, a supporting groove matching the water flow pipe is opened on the top of the supporting seat, and a fixed seat is arranged on the top of the supporting seat, the fixed seat is connected to the movable plate, and a limiting mechanism for limiting the fixed seat is arranged between the fixed seat and the furnace cover.

[0013] Preferably, the extrusion mechanism includes an open groove opened on one side of the interior of the furnace cover and a first threaded rod screwed to the interior of the furnace cover, an extrusion plate is arranged inside the open groove, a plurality of damping blocks are arranged on one side of the extrusion plate, and the plurality of damping blocks all correspond to the mounting sleeve, and the first threaded rod extends into the open groove and is connected to the extrusion plate.

[0014] Preferably, the limiting mechanism includes a storage seat fixed on the top of the furnace cover and a storage slot opened inside the storage seat, two baffles are installed inside the storage slot, limiting plates are installed on the same side of the support seat and the fixed seat, limiting rods are fixed on the top of the two baffles, the limiting rods extend to the top of the storage seat and are plugged into the limiting plates, a control rod is fixed on one side of the baffle, a moving slot for the control rod to move is opened on one side of the storage seat, and a spring is connected between the baffle and the storage slot.

[0015] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0016] 1. The utility model can clean the dust in the blast furnace after smelting through the setting of the dust cleaning mechanism, increase the airflow channel, improve the ventilation and gas flow of the blast furnace, thereby increasing the smelting efficiency and output of the blast furnace, and avoid the situation that the dust accumulation may react with the molten iron, resulting in an increase in impurities in the molten iron. At the same time, it solves the problem that the dust accumulation problem in the traditional device may cause the furnace body to heat up abnormally, increase the high temperature risk, and even cause accidents;

[0017] 2. The utility model can support and fix the water pipe by setting a supporting mechanism, reduce the water pipe falling off and damage caused by shaking, and fix the water pipe to ensure that it remains in the correct position during the cleaning operation, avoid affecting the cleaning effect due to position displacement, and help to more effectively remove the dust inside the furnace body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 A cross-sectional view of the utility model as a whole;

[0020] Figure 3 This is one of the structural schematic diagrams of the dust cleaning mechanism of the utility model;

[0021] Figure 4 This is the second structural diagram of the dust cleaning mechanism of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the support mechanism of the utility model;

[0023] Figure 6 It is a cross-sectional view of the support mechanism of the utility model.

[0024] Among them: 1. furnace body; 2. furnace cover; 3. ash cleaning mechanism; 4. support mechanism; 5. support legs; 6. opening and closing plate;

[0025] 31. Connecting pipe; 32. First threaded rod; 33. Spraying pipe; 34. Guide plate; 35. Extrusion plate; 36. Insert pipe; 37. Water storage pipe;

[0026] 41. Support seat; 42. Mounting seat; 43. Second threaded rod; 44. Fixed seat; 45. Limit rod; 46. Storage seat; 47. Control rod; 48. Spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1 and Figure 2 , a blast furnace dust cleaning device, comprising:

[0029] The furnace body 1 has a detachable furnace cover 2 on the top, a support sleeve is fixed to the outer wall of the bottom of the furnace body 1, a plurality of evenly distributed support legs 5 are fixed to the outer wall of the support sleeve, and an opening and closing plate 6 for convenient opening and closing is arranged at the bottom of the furnace body 1.

[0030] Please refer to Figure 2 , Figure 3 and Figure 4, a cleaning mechanism 3, the cleaning mechanism 3 is located inside the furnace cover 2 and is used to clean the accumulated ash inside the furnace body 1, the cleaning mechanism 3 includes a water supply mechanism, a spraying mechanism and a squeezing mechanism, the water supply mechanism is located on one side of the furnace body 1 and is used to supply water to the spraying mechanism, the spraying mechanism is located inside the furnace cover 2 and is used to spray the water source, the squeezing mechanism is located on one side of the furnace cover 2 and is used to squeeze and fix the spraying mechanism, the water supply mechanism includes a water tank fixed on one side of the furnace body 1 and a water supply pump installed inside the water tank, a connecting pipe 31 is installed at the water outlet end of the water supply pump, the connecting pipe 31 corresponds to the furnace cover 2, the spraying mechanism includes a mounting sleeve arranged inside the furnace cover 2 and a water storage pipe 37 installed inside the mounting sleeve, and a plurality of uniformly fixed water storage pipes 37 are provided at the bottom of the water storage pipe 37. The furnace cover 2 is provided with a plurality of spray pipes 33, and a guide plate 34 is fixed at the bottom of the installation sleeve, and the guide plate 34 cooperates with the plurality of spray pipes 33. A connecting mechanism for connecting the connecting pipe 31 is provided between the installation sleeve and the connecting pipe 31, and the connecting mechanism includes a plurality of inserting pipes 36 inserted in the top of the furnace cover 2 and a water flow pipe installed between the plurality of inserting pipes 36. The plurality of inserting pipes 36 extend to the interior of the installation sleeve and are inserted with the water storage pipe 37. The extrusion mechanism includes an open groove opened on one side of the interior of the furnace cover 2 and a first threaded rod 32 screwed to the interior of the furnace cover 2. An extrusion plate 35 is provided inside the open groove, and a plurality of damping blocks are provided on one side of the extrusion plate 35. The plurality of damping blocks correspond to the installation sleeve, and the first threaded rod 32 extends into the open groove and is connected to the extrusion plate 35.

[0031] First, put the installation sleeve into the furnace cover 2, rotate the first threaded rod 32 to drive the squeezing plate 35 to move in the open groove, until the squeezing plate 35 squeezes the installation sleeve so that the installation sleeve can be fixed in the furnace cover 2, then move the insert pipe 36 to insert it into the furnace cover 2, so that the insert pipe 36 is connected with the water storage pipe 37, and then the water source in the water tank is transported to the connecting pipe 31 through the water supply pump, and the water source is transported to the water flow pipe through the connecting pipe 31, and the water source is transported to the water storage pipe 37 through the insert pipe 36, and then the water source is sprayed into the furnace body 1 through multiple spray pipes 33. The guide plate 34 is set so that the sprayed water source can contact the inner wall of the furnace body 1, so as to enhance the cleaning effect of the inner wall of the furnace body 1. After spraying the inner wall of the furnace body 1, the opening and closing plate 6 is opened so that the ash can be separated from the furnace body 1, so as to achieve the cleaning of the ash inside the furnace body 1;

[0032] When there is no need to clean the inside of the furnace body 1, the furnace cover 2 is opened, and the first threaded rod 32 is rotated in the opposite direction to drive the extrusion plate 35 to move, so that the extrusion plate 35 is gradually separated from the installation sleeve. After the extrusion plate 35 and the installation sleeve are separated from each other, the installation sleeve is pulled to separate it from the furnace cover 2, thereby completing the disassembly operation of the installation sleeve, thereby avoiding damage to the installation sleeve caused by the high temperature of the furnace body 1 during operation.

[0033] Please also refer to Figure 2 , Figure 5 and Figure 6 A support mechanism 4 is provided between the water pipe and the furnace cover 2 to support the water pipe. The support mechanism 4 includes a support seat 41 and a mounting seat 42 fixed to the top of the furnace cover 2. A second threaded rod 43 is installed on the top of the mounting seat 42. A movable plate is screwed to the outer wall of the second threaded rod 43. A support groove matching the water pipe is provided on the top of the support seat 41. A fixed seat 44 is provided on the top of the support seat 41. The fixed seat 44 is connected to the movable plate. A limiter for limiting the fixed seat 44 is provided between the fixed seat 44 and the furnace cover 2. The positioning mechanism includes a storage seat 46 fixed on the top of the furnace cover 2 and a storage groove opened inside the storage seat 46. Two baffles are installed inside the storage groove. Limiting plates are installed on the same side of the support seat 41 and the fixed seat 44. Limiting rods 45 are fixed on the top of the two baffles. The limiting rods 45 extend to the top of the storage seat 46 and are plugged into the limiting plates. A control rod 47 is fixed on one side of the baffle, and a moving groove for the control rod 47 to move is opened on one side of the storage seat 46. A spring 48 is connected between the baffle and the storage groove.

[0034] First, press the control rod 47 to drive the baffle plate to move downward, and the downward movement of the baffle plate drives the spring 48 to contract. The contraction of the spring 48 makes the baffle plate drive the limit rod 45 to move downward, and the limit rod 45 moves downward to gradually separate from the limit plate, and then rotate the fixed seat 44 to make it rotate on the outer wall of the second threaded rod 43 through the movable plate, so that the fixed seat 44 and the support seat 41 are staggered, and then the water pipe is aligned with the support groove, and the fixed seat 44 is rotated in the opposite direction to make it correspond to the support seat 41, and then the second threaded rod 43 is rotated to drive the movable plate to move on its outer wall, and the movement of the movable plate drives the fixed seat 44 to move, and the movement of the fixed seat 44 drives the limit plate to move on the outer wall of the limit rod 45 until the fixed seat 44 clamps and fixes the water pipe, and the rotation of the second threaded rod 43 can be stopped.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A blast furnace dust cleaning device, characterized in that: include: A furnace body (1), wherein a detachable furnace cover (2) is arranged on the top of the furnace body (1), a support sleeve is fixed to the outer wall of the bottom of the furnace body (1), a plurality of evenly distributed support legs (5) are fixed to the outer wall of the support sleeve, and an opening and closing plate (6) for convenient opening and closing is arranged on the bottom of the furnace body (1); A cleaning mechanism (3), the cleaning mechanism (3) is located inside the furnace cover (2) and is used to clean the accumulated dust inside the furnace body (1), the cleaning mechanism (3) comprises a water supply mechanism, a spraying mechanism and a squeezing mechanism, the water supply mechanism is located on one side of the furnace body (1) and is used to supply water to the spraying mechanism, the spraying mechanism is located inside the furnace cover (2) and is used to spray water, and the squeezing mechanism is located on one side of the furnace cover (2) and is used to squeeze and fix the spraying mechanism.

2. A blast furnace dust cleaning device according to claim 1, characterized in that: The water supply mechanism comprises a water tank fixed on one side of the furnace body (1) and a water supply pump installed inside the water tank, and a connecting pipe (31) is installed at the water outlet end of the water supply pump, and the connecting pipe (31) corresponds to the furnace cover (2).

3. A blast furnace dust cleaning device according to claim 1, characterized in that: The spraying mechanism comprises a mounting sleeve arranged inside the furnace cover (2) and a water storage pipe (37) installed inside the mounting sleeve, a plurality of evenly distributed spraying pipes (33) are fixed to the bottom of the water storage pipe (37), a guide plate (34) is fixed to the bottom of the mounting sleeve, the guide plate (34) cooperates with the plurality of spraying pipes (33), and a connecting mechanism for connecting the connecting pipe (31) is provided between the mounting sleeve and the connecting pipe (31).

4. A blast furnace dust cleaning device according to claim 3, characterized in that: The connection mechanism comprises a plurality of inserting pipes (36) inserted into the top of the furnace cover (2) and a water flow pipe installed between the plurality of inserting pipes (36); the plurality of inserting pipes (36) extend into the interior of the installation sleeve and are inserted into the water storage pipe (37).

5. A blast furnace dust cleaning device according to claim 4, characterized in that: A support mechanism (4) for supporting the water flow pipe is arranged between the water flow pipe and the furnace cover (2), the support mechanism (4) comprising a support seat (41) and a mounting seat (42) fixed to the top of the furnace cover (2), a second threaded rod (43) is mounted on the top of the mounting seat (42), a movable plate is screwed to the outer wall of the second threaded rod (43), a support groove matching the water flow pipe is provided on the top of the support seat (41), a fixed seat (44) is arranged on the top of the support seat (41), the fixed seat (44) is connected to the movable plate, and a limiting mechanism for limiting the fixed seat (44) is arranged between the fixed seat (44) and the furnace cover (2).

6. A blast furnace dust cleaning device according to claim 3, characterized in that: The extrusion mechanism comprises an open groove formed on one side of the furnace cover (2) and a first threaded rod (32) screwed to the furnace cover (2); an extrusion plate (35) is arranged inside the open groove; a plurality of damping blocks are arranged on one side of the extrusion plate (35); the plurality of damping blocks correspond to the mounting sleeve; and the first threaded rod (32) extends into the open groove and is connected to the extrusion plate (35).

7. A blast furnace dust cleaning device according to claim 5, characterized in that: The limiting mechanism comprises a storage seat (46) fixed on the top of the furnace cover (2) and a storage groove opened inside the storage seat (46), two baffles are installed inside the storage groove, the limiting plates are installed on the same side of the support seat (41) and the fixed seat (44), the tops of the two baffles are fixed with limiting rods (45), the limiting rods (45) extend to the top of the storage seat (46) and are plugged into the limiting plates, a control rod (47) is fixed on one side of the baffle, and a moving groove for the control rod (47) to move is opened on one side of the storage seat (46), and a spring (48) is connected between the baffle and the storage groove.

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