A sintering material supplementing device for a pre-sluicing transfer station

Abstract

This utility model relates to a sintering feeding device for a transfer station in front of a blast furnace, including a receiving hopper. The bottom of the receiving hopper is fixedly connected to two feeding pipes arranged in an inverted V shape. The two feeding pipes are symmetrically arranged and not connected to each other. A rotatable tilting plate is provided on the receiving hopper. Support bars are symmetrically arranged on both sides of the inner wall of the hopper to limit and support the tilting plate. The tilting plate is set on the receiving hopper via a rotating shaft and is located directly above the intersection of the two feeding pipes. A positioning bracket is provided on the outside of the receiving hopper for locking and positioning the end of the rotating shaft. Rotating the tilting plate can connect to either feeding pipe for feeding. When the tilting plate is in the middle position, it can feed both feeding pipes simultaneously. The operator can manually rotate the tilting plate using a fork to switch feeding. This device is used for sintering feeding at a transfer station in front of a blast furnace. It can quickly feed sintering material to two blast furnaces without the need for a conveyor belt, shortening the feeding time, avoiding frequent belt starts and stops, improving production efficiency, and reducing modification costs.

Description

Technical Field

[0001] This utility model relates to the technical field of blast furnace charging devices, specifically a sintering feeding device for a transfer station in front of the blast furnace. Background Technology

[0002] During the sintering process in the blast furnace, due to limitations in space and facilities, it is necessary to feed the two blast furnaces through a transfer station in front of the blast furnace. The sinter is transported by a transport car to the hopper of the feeding device, and then falls onto the charging belt of the blast furnace via the feeding device. The feeding port of the feeding device needs to switch to the charging belt of the blast furnace, which seriously affects the feeding time and requires frequent start-stop of the transport belt. Chinese patent CN219970802U discloses a raw material workshop feeding hopper, including a main feeding pipe and two branch feeding pipes, which solves the problem of needing to switch the transport belt and can quickly feed the sinter. However, this patent sets branch feeding port flaps in the middle of the two branch feeding pipes. The flaps set in the branch feeding pipes affect the smooth falling of the sinter and are prone to blockage. The flaps can be locked, and the frequency of opening the maintenance door on the branch feeding pipe for cleaning and maintenance is too high. Therefore, a sintering feeding device in front of the blast furnace transfer station that can achieve material distribution and smooth material falling is needed. Utility Model Content

[0003] The purpose of this invention is to provide a sintering feeding device for a transfer station in front of the sintering tank, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A sintering feeding device for a transfer station in front of a tank includes a receiving hopper. The bottom of the receiving hopper is fixedly connected to two feeding pipes. The two feeding pipes are arranged symmetrically in an inverted V shape and are not connected to each other. A rotatable flip plate is provided on the receiving hopper. Two support bars are symmetrically arranged on both sides of the inner wall of the receiving hopper to limit and support the flip plate. The flip plate is set on the receiving hopper via a rotating shaft and is located directly above the intersection of the two feeding pipes. A positioning bracket is provided on the outside of the receiving hopper for locking and positioning the end of the rotating shaft.

[0006] The aforementioned sintering feeding device for the transfer station in front of the tank includes a tilting plate, a baffle, a wear-resistant plate, and a positioning block. The end of the baffle is fixedly connected to the rotating shaft and can rotate synchronously. Multiple wear-resistant plates are symmetrically arranged on both sides of the baffle. The positioning block is hinged to the end of the rotating shaft and is adapted to the positioning card seat for positioning the tilting plate.

[0007] In the aforementioned sintering feeding device for the transfer station in front of the tank, the positioning block and the axis of the baffle are arranged on the same plane, and a connecting part, a clamping part and a driving part are arranged sequentially along its axis. The connecting part is hinged to the rotating shaft through the hinge shaft, the clamping part is clamped on the positioning card seat, and the driving part is connected to the driving device to drive the positioning block to rotate around the hinge shaft to disengage or clamp on the positioning card seat.

[0008] The aforementioned sintering feeding device for the transfer station in front of the tank includes a positioning bracket comprising a fixing plate and positioning blocks. The fixing plate is fixed on the receiving hopper, and the three positioning blocks are fixedly arranged in a fan shape on the fixing plate. The middle positioning block is located at the intersection of the two feeding pipes.

[0009] In the aforementioned sintering feeding device for the transfer station in front of the tank, the included angle between two adjacent positioning blocks is set between 35° and 45°, and the height of the middle positioning block is higher than that of the positioning blocks on both sides.

[0010] The aforementioned sintering feeding device for the transfer station in front of the tank has a driving device that is a fork, which includes a hand handle, a fork block, and a connecting shaft. The fork block is located at the end of the hand handle, and the free end of the fork block is provided with a U-shaped groove. The connecting shaft is fixedly located at the opening of the U-shaped groove.

[0011] In the aforementioned sintering feeding device for the transfer station in front of the tank, the driving part is provided with a T-shaped slot adapted to the shift fork, the driving part is installed in the U-shaped slot, and the connecting shaft is installed in the T-shaped slot.

[0012] The aforementioned sintering feeding device for the transfer station in front of the tank includes a feeding pipe comprising a pipe body and wear-resistant liners. The pipe body is an inclined rectangular pipe body, and multiple wear-resistant liners are fixedly installed on the front, rear, and lower sides of the inner surface of the rectangular pipe body by bolts.

[0013] The wear-resistant liner of the aforementioned sintering feeding device at the transfer station in front of the tank is a ceramic liner.

[0014] The aforementioned sintering feeding device for the transfer station in front of the tank is provided with an inspection door on the receiving hopper. The inspection door is located on the front side of the hopper body and above the rotating shaft. The hopper body is also provided with reinforcing ribs around the rotating shaft, and two reinforcing ribs are symmetrically arranged on the front and rear sides of the hopper body.

[0015] The beneficial effects of adopting the above technical solution are:

[0016] This utility model provides a sintering feeding device for a pre-tank transfer station. Two inverted V-shaped feeding pipes are symmetrically arranged at the bottom of the receiving hopper, and the two feeding pipes are not connected to each other. A rotatable tilting plate is installed on the receiving hopper. Support bars are symmetrically arranged on both sides of the inner wall of the hopper to limit and support the tilting plate. The tilting plate is mounted on the receiving hopper via a rotating shaft and is located directly above the intersection of the two feeding pipes. A positioning bracket is provided on the outside of the receiving hopper to lock and position the end of the rotating shaft. Rotating the tilting plate allows feeding to either feeding pipe. When the tilting plate is in the middle position, it can feed both feeding pipes simultaneously. The operator can manually rotate the tilting plate using a fork to switch feeding modes without stopping the machine to reposition the feeding belt. Placing the tilting plate inside the receiving hopper avoids affecting the material discharge efficiency of the distribution hopper and preventing sintered material from clogging the distribution hopper. This device is used for sintering feeding at a pre-tank transfer station, has low modification costs, and can quickly feed sintered material to two blast furnaces, improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 2 This is a front view structural diagram of the present invention;

[0019] Figure 3 This is a front structural sectional view of the present invention;

[0020] Figure 4 This is a partial sectional view of the three-dimensional structure of this utility model in use.

[0021] Figure 5 This is a three-dimensional structural diagram of the flip plate of this utility model;

[0022] Figure 6 This is a schematic diagram of the connection structure between the positioning block and the shift fork of this utility model.

[0023] In the diagram: 1. Receiving hopper; 1-1. Hopper body; 1-2. Support bar; 1-3. Positioning bracket; 1-3-1. Fixing plate; 1-3-2. Positioning block; 1-4. Inspection door; 2. Feeding pipe; 2-1. Pipe body; 2-2. Wear-resistant liner; 3. Tilting plate; 3-1. Rotating shaft; 3-2. Baffle; 3-3. Wear-resistant plate; 3-4. Positioning block; 3-4-1. Connecting part; 3-4-2. Mounting part; 3-4-3. Drive part; 3-5. Hinge shaft; 4. Shift fork; 4-1. Hand lever; 4-2. Shift block; 4-3. Connecting shaft. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be clearly and completely described below in conjunction with specific embodiments.

[0025] like Figures 1 to 6 The sintering feeding device shown includes a receiving hopper 1, which is attached to the bottom of the sintering material conveyor belt. The bottom of the receiving hopper 1 is fixedly connected to two feeding pipes 2, which are arranged symmetrically in an inverted V shape and are not interconnected. A rotatable flip plate 3 is provided on the receiving hopper 1, which can close or open the feeding pipes 2. Two support bars 1-2 are symmetrically arranged on both sides of the inner wall of the hopper body 1-1 of the receiving hopper 1 to limit and support the flip plate 3. When the flip plate 3 overlaps the support bars 1-2, the feeding pipe 2 below the support bars 1-2 is in a closed state, and the feeding device drops material through the feeding pipe 2 on the other side. The flip plate 3 is set on the receiving hopper 1 by a rotating shaft 3-1 and is located directly above the intersection of the two feeding pipes 2. A positioning bracket 1-3 is provided on the outside of the receiving hopper 1 to lock and position the end of the rotating shaft 3-1, thereby positioning the flip plate 3 and keeping it in the set state so that it does not shift due to the impact of the sintering material.

[0026] like Figure 5 As shown, the flip plate 3 also includes a baffle 3-2, a wear-resistant plate 3-3, and a positioning block 3-4. The baffle 3-2 has a through hole at its end, through which it passes onto the rotating shaft 3-1. The through hole has a keyway or flat groove that mates with the rotating shaft 3-1, allowing the baffle 3-2 to be fixedly connected to the rotating shaft 3-1 and rotate synchronously. Furthermore, multiple wear-resistant plates 3-3 are symmetrically arranged on both sides of the baffle 3-2 to ensure the baffle 3-2 is wear-resistant and allows the sintered material to easily slide off. The positioning block 3-4 is hinged to the end of the rotating shaft 3-1 via a hinge pin 3-5 and can rotate synchronously with the rotating shaft 3-1. The positioning block 3-4 is adapted to the positioning seat 1-3 for locking and positioning the flip plate 3, allowing it to flip... The rotating plate 3 is kept in the set position to ensure the replenishment of sintering material; the positioning block 3-4 and the baffle 3-2 are set on the same plane, and the operator can use the positioning block 3-4 to know the real-time position of the baffle 3-2. A connecting part 3-4-1, a clamping part 3-4-2, and a driving part 3-4-3 are sequentially arranged along the axis of the positioning block 3-4. The connecting part 3-4-1 is hinged to the rotating shaft 3-1 via a hinge pin 3-5. The clamping part 3-4-2 is used to position the baffle 3-2 on the positioning seat 1-3. The driving part 3-4-3 can be connected to a driving device to drive the positioning block 3-4 to rotate around the hinge pin 3-5 to disengage or clamp onto the positioning seat 1-3. Figure 4 and Figure 6As shown, the driving device in this embodiment is a shift fork 4, which is manually operated. It includes a hand lever 4-1, a shift block 4-2, and a connecting shaft 4-3. The shift block 4-2 is located at the end of the hand lever 4-1, and the free end of the shift block 4-2 is provided with a U-shaped groove. The connecting shaft 4-3 is fixedly located at the opening of the U-shaped groove. The driving part 3-4-3 is provided with a T-shaped groove that matches the shift fork 4. The driving part 3-4-3 is fitted into the U-shaped groove, and the connecting shaft 4-3 is fitted into the T-shaped groove. The operator holds the hand lever 4-1 and fits the shift fork 4 onto the outside of the driving part 3-4-3. The operator can then rotate the positioning block 3-4 to disengage it or fit it onto the positioning seat 1-3. After the operation is completed, the shift fork 4 can be removed and placed away. The embodiment of this application is a modification scheme, which is suitable for situations where the replenishment of sintering material is large. Currently, the flipping plate 3 flips approximately once every 4 hours, so frequent operation is not required. If the flipping plate 3 needs to be flipped frequently, the drive device can be controlled by an electronic control system to control the power device.

[0027] like Figure 1 , Figure 2 and Figure 5 As shown, the positioning bracket 1-3 includes a fixing plate 1-3-1 and positioning blocks 1-3-2. The three positioning blocks 1-3-2 are fixedly arranged in a fan shape on the fixing plate 1-3-1. The fixing plate 1-3-1 is fixed on the receiving hopper 1. The middle positioning block 1-3-2 is located at the intersection of the two feeding pipes 2. The included angle between two adjacent positioning blocks 1-3-2 is set between 35° and 45°, according to the required tilt angle of the flipping plate 3. The height of the middle positioning block 1-3-2 is higher than that of the positioning blocks 1-3-2 on both sides, ensuring that when the flipping plate 3 is in the central position, the positioning block 3-4 will not fall off due to the impact and vibration of the sintering material. When the flipping plate 3 is on one side, the positioning block 3-4 can be locked on the positioning block 1-3-2. At the same time, the flipping plate 3 is supported on the support bar 1-2 for double positioning, and the vibration generated by the impact of the sintering material is small.

[0028] like Figures 1 to 3 As shown, the feeding pipe 2 includes a pipe body 2-1 and wear-resistant liners 2-2. The pipe body 2-1 is a rectangular pipe body arranged at an inclination. The sintered material slides down along the front, rear, and lower sides of the inner surface of the rectangular pipe body. To enhance the service life of the feeding pipe 2 and reduce the sliding friction of the sintered material, in this embodiment, multiple wear-resistant liners 2-2 are fixedly installed on the front, rear, and lower sides of the inner surface of the rectangular pipe body with bolts. The wear-resistant liners 2-2 are ceramic liners. The receiving hopper 1 is also provided with an inspection door 1-4. The inspection door 1-4 is located on the front side of the hopper body 1-1 and above the rotating shaft 3-1. The hopper body 1-1 is also provided with reinforcing ribs 1-1-1 around the rotating shaft 3-1. The two reinforcing ribs 1-1-1 are symmetrically arranged on the front and rear sides of the hopper body 1-1 to enhance the strength of the hopper body 1-1 and facilitate the opening of the mounting holes for the rotating shaft 3-1.

[0029] Workflow: Based on the actual situation of the blast furnace requiring refueling, the worker uses a fork to adjust the tilting plate to the set position. The positioning block of the wear-resistant plate is engaged with the positioning block in the middle of the positioning seat. At this time, the tilting plate is in a vertical position, and the refueling device can simultaneously feed material to two refueling pipes, enabling simultaneous refueling of two blast furnaces. The worker then uses the fork to rotate the positioning block, moving it to the positioning block on either side of the positioning seat. At this time, the tilting plate is positioned above the refueling pipe on the opposite side of the positioning block, and the tilting plate overlaps the support bar of the receiving hopper. The refueling device feeds material through the refueling pipe on the same side as the positioning block, refueling only one blast furnace.

[0030] This article uses specific embodiments to illustrate the principles and implementation methods of this utility model in detail. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. Those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; however, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sintering feeding device for a transfer station in front of the sintering tank, characterized in that: The device includes a receiving hopper (1), the bottom of which is fixedly connected to two feeding pipes (2). The two feeding pipes (2) are arranged symmetrically in an inverted V shape and are not connected to each other. A rotatable flip plate (3) is provided on the receiving hopper (1). Two support bars (1-2) are symmetrically arranged on both sides of the inner wall of the hopper body (1-1) of the receiving hopper (1) to limit and support the flip plate (3). The flip plate (3) is set on the receiving hopper (1) through a rotating shaft (3-1) and is located directly above the intersection of the two feeding pipes (2). A positioning bracket (1-3) is provided on the outside of the receiving hopper (1) for locking and positioning the end of the rotating shaft (3-1).

2. The sinter make-up device for a pre-slit transport station according to claim 1, characterized in that: The flip plate (3) also includes a baffle (3-2), a wear-resistant plate (3-3), and a positioning block (3-4). The end of the baffle (3-2) is threaded through the rotating shaft (3-1) and fixedly connected to the rotating shaft (3-1) so that it can rotate synchronously. Multiple wear-resistant plates (3-3) are symmetrically arranged on both sides of the baffle (3-2). The positioning block (3-4) is hinged to the end of the rotating shaft (3-1) through a hinge shaft (3-5) and is adapted to the positioning seat (1-3) for positioning the flip plate (3).

3. The sinter make-up device for a pre-slit transfer station according to claim 2, characterized in that: The positioning block (3-4) and the baffle (3-2) are arranged on the same plane. A connecting part (3-4-1), a clamping part (3-4-2) and a driving part (3-4-3) are arranged sequentially along the axis. The connecting part (3-4-1) is hinged to the rotating shaft (3-1) through the hinge shaft (3-5). The clamping part (3-4-2) is fitted on the positioning base (1-3). The driving part (3-4-3) is connected to the driving device and can drive the positioning block (3-4) to rotate around the hinge shaft (3-5) to disengage or be fitted on the positioning base (1-3).

4. The sinter make-up device of a pre-slit transfer station according to claim 3, characterized in that: The positioning bracket (1-3) includes a fixing plate (1-3-1) and positioning blocks (1-3-2). The fixing plate (1-3-1) is fixed on the receiving hopper (1). The three positioning blocks (1-3-2) are fixedly arranged in a fan shape on the fixing plate (1-3-1). The middle positioning block (1-3-2) is located at the intersection of the two feeding pipes (2).

5. The sinter make-up device for a pre-slit transfer station according to claim 4, characterized in that: The included angle between two adjacent positioning blocks (1-3-2) is set between 35° and 45°, and the middle positioning block (1-3-2) is higher than the positioning blocks (1-3-2) on both sides.

6. The sinter make-up device of a pre-slit transfer station according to claim 3, characterized in that: The driving device is a fork (4), which includes a hand lever (4-1), a lever (4-2) and a connecting shaft (4-3). The lever (4-2) is disposed at the end of the hand lever (4-1), and the free end of the lever (4-2) is provided with a U-shaped groove. The connecting shaft (4-3) is fixedly disposed at the opening of the U-shaped groove.

7. A sintering feeding device for a transfer station in front of the trough according to claim 6, characterized in that: The drive unit (3-4-3) is provided with a T-shaped slot that is adapted to the shift fork (4). The drive unit (3-4-3) is fitted into the U-shaped slot, and the connecting shaft (4-3) is fitted into the T-shaped slot.

8. The sinter make-up device of a pre-slit transfer station according to claim 1, characterized in that: The feeding pipe (2) includes a pipe body (2-1) and wear-resistant liners (2-2). The pipe body (2-1) is a rectangular pipe body that is inclined. Multiple wear-resistant liners (2-2) are fixedly installed on the front and rear sides and the lower side of the inner surface of the rectangular pipe body by bolts.

9. The sinter make-up device for a pre-slit transfer station according to claim 8, characterized in that: The wear-resistant liner (2-2) is made of ceramic.

10. The sinter make-up device for a pre-slit transfer station according to claim 9, characterized in that: The receiving hopper (1) is also provided with an inspection door (1-4). The inspection door (1-4) is located on the front side of the hopper body (1-1) and above the rotating shaft (3-1). The hopper body (1-1) is also provided with reinforcing ribs (1-1-1) around the rotating shaft (3-1). The two reinforcing ribs (1-1-1) are symmetrically arranged on the front and rear sides of the hopper body (1-1).

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