A bottom-blown furnace feeding device

Abstract

This invention discloses a bottom-blown furnace feeding device in the field of lead smelting equipment technology. The device includes a receiving hopper installed on the bottom-blown furnace and a feeding hopper for feeding material into the receiving hopper. The bottom surface of the feeding hopper and the top surface of the receiving hopper are both inclined to the horizontal plane, and the inclination angle of the top surface of the receiving hopper is the same as the inclination angle of the bottom surface of the feeding hopper. This ensures that when the bottom-blown furnace is in the correct position, the top surface of the receiving hopper and the bottom surface of the feeding hopper are completely in contact. When the bottom surface of the feeding hopper and the top surface of the receiving hopper are completely in contact, a gapless feeding channel is formed between the feeding hopper and the receiving hopper. This prevents material leakage when feeding material into the bottom-blown furnace, avoids material residue on the furnace surface affecting heat dissipation, prevents material waste, ensures the accuracy of each feeding, and reduces production costs.

Description

Technical Field

[0001] This invention relates to the field of lead smelting equipment, specifically a bottom-blown furnace feeding device. Background Technology

[0002] The bottom-blown furnace is a horizontal cylindrical metallurgical production equipment. During production, the material is fed into the furnace from top to bottom through the feeding hopper and the receiving hopper. The feeding hopper is fixed on the feeding platform. When feeding is required, the bottom-blown furnace rotates to connect the feeding hopper and the receiving hopper. After feeding stops, the bottom-blown furnace rotates to separate the transfer chute from the square variable diameter funnel.

[0003] However, traditional feeding hoppers and receiving hoppers are both flat-mouthed. When feeding, the feeding hopper and receiving hopper need to be aligned. However, due to motion interference, there will be gaps between the feeding hopper and receiving hopper. When feeding during production, since the material is in powder form, the material will spray out from the gaps and fall onto the furnace shell, causing poor heat dissipation of the furnace body and generating a large amount of dust, which will have a certain impact on the working environment of the bottom blowing furnace.

[0004] Based on this, the present invention designs a bottom-blown furnace feeding device to solve the above problems. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a bottom-blown furnace feeding device to solve the problem mentioned in the background art that it is inconvenient to adjust the safety protection range according to different usage scenarios and requirements.

[0007] (II) Technical Solution

[0008] A bottom-blown furnace feeding device includes a receiving hopper installed on the bottom-blown furnace and a feeding hopper for feeding material into the receiving hopper. The bottom surface of the feeding hopper and the top surface of the receiving hopper are both inclined to the horizontal plane, and the inclination angle of the top surface of the receiving hopper is the same as the inclination angle of the bottom surface of the feeding hopper, so that the top surface of the receiving hopper and the bottom surface of the feeding hopper are completely in contact when the bottom-blown furnace is in the positive position.

[0009] As a further embodiment of the present invention, the receiving hopper or the discharge hopper adopts a square-to-round diameter reducing pipe, or the discharge hopper adopts a round pipe, or the receiving hopper adopts a square pipe, so that the opening shape of the top surface of the receiving hopper is the same as the opening shape of the bottom surface of the discharge hopper. In general, the discharge hopper and the receiving hopper are square pipes and round pipes, respectively. In order to make the top surface of the receiving hopper and the bottom surface of the discharge hopper completely fit together, the receiving hopper or the discharge hopper adopts a square-to-round diameter reducing pipe, so that the contacting surfaces of the receiving hopper or the discharge hopper have the same shape, or the discharge hopper adopts a round pipe, or the receiving hopper adopts a square pipe, so that the receiving hopper and the discharge hopper themselves have the same shape, thus fundamentally solving the problem.

[0010] As a further embodiment of the present invention, the feeding hopper consists of a fixed part and a movable part slidably mounted on the surface of the fixed part. The fixed part is used to communicate with the storage device, and the bottom surface of the movable part is inclined so that it can be used to compensate for the rotation angle error of the bottom blowing furnace by contacting the top surface of the receiving hopper within its sliding stroke range. The feeding hopper is divided into two parts: a fixed part and a movable part. The movable part is slidably mounted on the fixed part. The fixed part is used to communicate with the storage device, while the movable part is used to contact the receiving hopper. The sliding stroke of the movable part is used to offset the rotation angle error of the bottom blowing furnace. In this way, as long as the rotation angle error of the bottom blowing furnace is within the allowable range, the lower surface of the movable part can be completely in contact with the upper surface of the receiving hopper to prevent material leakage.

[0011] As a further embodiment of the present invention, the fixed part is fixedly provided with sliders on both outer sides perpendicular to the axis of the bottom blowing furnace, and the movable part is provided with slide rails for accommodating the sliders on both sides perpendicular to the axis of the bottom blowing furnace. The sliding engagement between the movable part and the fixed part is achieved by the cooperation between the sliders and the slide rails, and the sliding engagement between the movable part and the fixed part is achieved by the sliding of the sliders in the slide rails. The sliding stroke of the sliders in the rails is the movable stroke of the movable part.

[0012] As a further embodiment of the present invention, both the slide rail and the slider are arc-shaped, and both the slide rail and the slider are coaxial with the bottom blowing furnace, so that the sliding trajectory of the movable part partially coincides with the moving trajectory of the receiving hopper when the bottom blowing furnace rotates. The movable part can always be in complete contact with the upper surface of the receiving hopper through its lower surface. The movable part always maintains complete contact between the lower surface and the upper surface of the receiving hopper within its stroke range, so as to compensate for the rotation angle error of the bottom blowing furnace.

[0013] As a further aspect of the present invention, a position holding device is provided between the movable part and the fixed part. The position holding device is used to keep the movable part in the position closest to the receiving hopper during its stroke when no external force is applied. Since the bottom surface of the movable part and the top surface of the receiving hopper are both designed with bevels, this means that the receiving hopper can only approach the movable part from one direction. Therefore, the position holding device ensures that the movable part is always kept in the position closest to the receiving hopper during its sliding stroke when no external force is applied. When the orientation rotation program of the bottom blowing furnace is completed but the angle has not reached the orientation angle, the bottom surface of the movable part can still be fully in contact with the top surface of the receiving hopper. When the orientation rotation program of the bottom blowing furnace is completed but the rotation angle exceeds the orientation angle, the movable part will first contact the top surface of the receiving hopper through its bottom surface and then be pushed by the receiving hopper. This allows the bottom blowing furnace to compensate for both excessive and insufficient rotation angles through the movable part, ensuring the compensation range.

[0014] As a further embodiment of the present invention, the position holding device includes a first spring seat, a second spring seat, and a holding spring. The first spring seat and the second spring seat are respectively fixedly connected to the fixed part and the movable part. The two ends of the holding spring are respectively fixedly connected to the first spring seat and the second spring seat to hold the position of the movable part. The first spring seat and the second spring seat are respectively fixedly connected to the fixed part and the movable part. Then, the holding spring is installed between the first spring seat and the second spring seat. When the receiving hopper pushes the movable part to move, the holding spring will be stretched. When the receiving hopper rotates in the opposite direction and tends to disengage from the movable part, the holding spring can help the movable part return to the initial position through its elastic force.

[0015] As a further embodiment of the present invention, baffles are fixedly provided on the two side walls of the fixed part where the slider is not installed, and sliding grooves for the baffles to pass through are provided on the two side walls of the movable part where the slide rail is not provided. Both the baffles and the sliding grooves are arc-shaped and coaxial with the bottom blowing furnace. The baffles are used to close the open part inside the movable part to prevent material leakage.

[0016] As a further aspect of the present invention, sealing gaskets are installed on the bottom surface of the movable part and the top surface of the receiving hopper to increase the sealing effect after the two are put together.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This invention sets both the top surface of the receiving hopper and the bottom surface of the discharging hopper as inclined surfaces, i.e., slanted openings. This way, as long as the bottom blowing furnace rotates in a specific direction, the top surface of the receiving hopper and the bottom surface of the discharging hopper can completely fit and separate without causing motion interference. During material discharge, the receiving hopper and the discharging hopper can form a complete discharging pipeline, which can effectively reduce material leakage, prevent material waste, ensure the accuracy of each feeding, and reduce production costs.

[0019] 2. This invention divides the feeding hopper into two parts: a fixed part and a movable part. The movable part is slidably mounted on the surface of the fixed part. The sliding stroke of the movable part compensates for the rotation angle error of the bottom blowing furnace. Even when there is an error in the rotation angle of the bottom blowing furnace, the movable part can still make complete contact with the top surface of the receiving hopper through its bottom surface. This will not reduce the sealing effect during subsequent use and ensure the service life of the entire device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the second embodiment of the present invention;

[0022] Figure 3This is a schematic diagram of the structure of the movable part and the fixed part in this invention;

[0023] Figure 4 This is a schematic cross-sectional view of the movable part in this invention;

[0024] Figure 5 This is a bottom view of the fixing part in this invention.

[0025] Figure 6 This is a bottom view of the movable part in this invention.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Receiving hopper; 2. Discharging hopper; 21. Fixed part; 211. Slider; 22. Movable part; 221. Slide rail; 3. Position holding device; 31. First spring seat; 32. Second spring seat; 33. Holding spring; 41. Baffle; 42. Slide groove. Detailed Implementation

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Please see Figure 1-6 This invention provides a technical solution: a bottom-blown furnace feeding device, comprising a receiving hopper 1 installed on the bottom-blown furnace and a feeding hopper 2 for feeding material into the receiving hopper 1. The bottom surface of the feeding hopper 2 and the top surface of the receiving hopper 1 are both inclined to the horizontal plane, and the inclination angle of the top surface of the receiving hopper 1 is the same as the inclination angle of the bottom surface of the feeding hopper 2, so that when the bottom-blown furnace is in the correct position, the top surface of the receiving hopper 1 and the bottom surface of the feeding hopper 2 are completely in contact. When the bottom surface of the feeding hopper 2 and the top surface of the receiving hopper 1 are completely in contact, the feeding hopper 2 and the receiving hopper 1 can form a gapless feeding channel, so that there will be no leakage when feeding material into the bottom-blown furnace, and no material residue on the surface of the bottom-blown furnace will affect the heat dissipation of the bottom-blown furnace. At the same time, it can also prevent material waste, ensure the accuracy of each feeding, and reduce production costs.

[0030] Specifically, the feeding hopper 2 is connected to the storage device. The feeding hopper 2 is fixedly installed on the surface of the bottom-blown furnace and connected to the inner cavity of the bottom-blown furnace. Since the top surfaces of the receiving hopper 1 and the feeding hopper 2 are inclined at the same angle, as long as the bottom-blown furnace rotates in a specific direction, the top surfaces of the receiving hopper 1 and the feeding hopper 2 can easily separate and adhere. There will be no movement interference between the feeding hopper 2 and the receiving hopper 1, and it will not affect the normal shaking of the bottom-blown furnace. When it is necessary to add material to the bottom-blown furnace, the bottom-blown furnace is first rotated back to the correct position. The positions of the feeding hopper 2 and the receiving hopper 1 are designed to ensure that the top surface of the receiving hopper 1 and the bottom surface of the feeding hopper 2 can be completely attached when the bottom-blown furnace is in the correct position. At this time, the feeding hopper 2 and the receiving hopper 1 can form a complete pipeline, so it can be ensured that there will be no leakage during the feeding process, thus solving a series of problems caused by leakage.

[0031] Furthermore, the receiving hopper 1 or the discharging hopper 2 adopts a square-to-round diameter reducing pipe, or the discharging hopper 2 adopts a round pipe, or the receiving hopper 1 adopts a square pipe, so that the shape of the opening on the top surface of the receiving hopper 1 is the same as the shape of the opening on the bottom surface of the discharging hopper 2. Under normal circumstances, the discharging hopper 2 and the receiving hopper 1 are square pipes and round pipes, respectively. In order to make the top surface of the receiving hopper 1 and the bottom surface of the discharging hopper 2 fit together completely, the receiving hopper 1 or the discharging hopper 2 adopts a square-to-round diameter reducing pipe, so that the contacting surfaces of the receiving hopper 1 and the discharging hopper 2 have the same shape, or the discharging hopper 2 adopts a round pipe, or the receiving hopper 1 adopts a square pipe, so that the receiving hopper 1 and the discharging hopper 2 have the same shape, thus fundamentally solving the problem.

[0032] It should be noted that, as Figure 2-6 The feeding hopper 2 consists of a fixed part 21 and a movable part 22 slidably mounted on the surface of the fixed part 21. The fixed part 21 is used to communicate with the storage device. The bottom surface of the movable part 22 is inclined so that it can be used to compensate for the rotation angle error of the bottom blowing furnace by contacting the top surface of the receiving hopper 1 within its sliding stroke range. During the long-term use of the bottom blowing furnace, due to the wear of mechanical parts, thermal expansion and contraction, and assembly errors, there will be a slight error in the positioning angle of the bottom blowing furnace. At this time, there may also be a gap between the feeding hopper 2 and the receiving hopper 1 when the bottom blowing furnace is in the correct position. Therefore, the feeding hopper 2 is divided into two parts: the fixed part 21 and the movable part 22. The movable part 22 is slidably mounted on the fixed part 21. The fixed part 21 is used to communicate with the storage device, while the movable part 22 is used to contact the receiving hopper 1. The sliding stroke of the movable part 22 is used to offset the rotation angle error of the bottom blowing furnace. In this way, as long as the rotation angle error of the bottom blowing furnace is within the allowable range, the lower surface of the movable part 22 can be completely in contact with the upper surface of the receiving hopper 1 to prevent material leakage.

[0033] Furthermore, such as Figure 2-6As shown, the fixed part 21 has sliders 211 fixedly installed on both outer sides of the fixed part 21 perpendicular to the axis of the bottom blower. The movable part 22 has slide rails 221 for accommodating the sliders 211 on both sides of the movable part 22 perpendicular to the axis of the bottom blower. The sliding cooperation between the movable part 22 and the fixed part 21 is achieved through the cooperation between the sliders 211 and the slide rails 221.

[0034] It should be noted that a slide rail 221 is provided on the side of the movable part 22, and a slider 211 that slides in cooperation with the slide rail 221 is fixedly installed on the side of the fixed part 21. The sliding cooperation between the movable part 22 and the fixed part 21 is achieved by the sliding of the slider 211 in the slide rail 221. The sliding stroke of the slider 211 in the track is the movable stroke of the movable part 22.

[0035] Furthermore, such as Figure 2-6 As shown, both the slide rail 221 and the slider 211 are arc-shaped, and both the slide rail 221 and the slider 211 are coaxial with the bottom blowing furnace, so that the sliding trajectory of the moving part 22 partially coincides with the moving trajectory of the receiving hopper 1 when the bottom blowing furnace rotates.

[0036] It should be noted that since the receiving hopper 1 moves along with the swing of the bottom blowing furnace, the trajectory of the receiving hopper 1 is a rotation around the axis of the bottom blowing furnace. Therefore, both the slider 211 and the slide rail 221 are arc-shaped, and both the slider 211 and the slide rail 221 are coaxial with the bottom blowing furnace. The sliding trajectory of the slider 211 in the track is the sliding trajectory of the movable part 22. In this way, the movable part 22, like the receiving hopper 1, rotates around the axis of the bottom blowing furnace. Thus, the movable part 22 can always maintain complete contact between its lower surface and the upper surface of the receiving hopper 1 within its stroke range to compensate for the rotation angle error of the bottom blowing furnace.

[0037] Furthermore, such as Figure 2-6 As shown, a position holding device 3 is provided between the movable part 22 and the fixed part 21. The position holding device 3 is used to keep the movable part 22 in the position closest to the receiving hopper 1 during its stroke when no external force is applied.

[0038] It should be noted that a position holding device 3 is provided between the movable part 22 and the fixed part 21. The position holding device 3 can keep the movable part 22 in the position closest to the receiving hopper 1 during its sliding stroke without external force. Since the bottom surface of the movable part 22 and the top surface of the receiving hopper 1 are both designed with bevels, this means that the receiving hopper 1 can only approach the movable part 22 from one direction. Therefore, the position holding device 3 can keep the movable part 22 in the position closest to the receiving hopper 1 during its sliding stroke without external force. When the bottom blowing furnace's orientation rotation program is completed but the angle has not reached the orientation angle, the bottom surface of the movable part 22 can still be fully in contact with the top surface of the receiving hopper 1. When the bottom blowing furnace's orientation rotation program is completed but the rotation angle exceeds the orientation angle, the movable part 22 will first contact the top surface of the receiving hopper 1 through its bottom surface and then be pushed by the receiving hopper 1. This allows the bottom blowing furnace to compensate for both excessive and insufficient rotation angles through the movable part 22, ensuring the compensation range.

[0039] Furthermore, such as Figure 2-6 As shown, the position holding device 3 includes a first spring seat 31, a second spring seat 32, and a holding spring 33. The first spring seat 31 and the second spring seat 32 are respectively fixed to the fixed part 21 and the movable part 22. The two ends of the holding spring 33 are respectively fixedly connected to the first spring seat 31 and the second spring seat 32 to hold the position of the movable part 22.

[0040] It should be noted that the first spring seat 31 and the second spring seat 32 are respectively fixed to the fixed part 21 and the movable part 22. Then, a retaining spring 33 is installed between the first spring seat 31 and the second spring seat 32. When the receiving hopper 1 pushes the movable part 22 to move, the retaining spring 33 will be stretched. When the receiving hopper 1 rotates in the opposite direction and tends to disengage from the movable part 22, the retaining spring 33 can help the movable part 22 return to its initial position through its elastic force.

[0041] Furthermore, such as Figure 2-6 As shown, the fixed part 21 has baffles 41 fixedly installed on the two side walls where the slider 211 is not installed, and the movable part 22 has grooves 42 for the baffles 41 to pass through on the two side walls where the slide rail 221 is not opened. Both the baffles 41 and the grooves 42 are arc-shaped and coaxial with the bottom blowing furnace. The baffles 41 close the open part inside the movable part 22 to prevent material leakage.

[0042] It should be noted that since the movable part 22 needs to fit over the fixed part 21 while also having a certain amount of room to move, the movable part 22 needs to be larger than the fixed part 21. The baffle 41 shown can cover the open part inside the movable part 22, so that the movable part 22 is completely sealed to prevent material leakage. The bottom surface of the movable part 22 and the top surface of the receiving hopper 1 are both equipped with sealing gaskets to increase the sealing effect after the two are attached.

[0043] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, and is not intended to limit the scope of protection of the present invention. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. A bottom-blown furnace feeding device, comprising a receiving hopper (1) installed on the bottom-blown furnace and a feeding hopper (2) for feeding material into the receiving hopper (1), characterized in that, The bottom surface of the feeding hopper (2) and the top surface of the receiving hopper (1) are both inclined to the horizontal plane, and the inclination angle of the top surface of the receiving hopper (1) is the same as the inclination angle of the bottom surface of the feeding hopper (2), so that the top surface of the receiving hopper (1) and the bottom surface of the feeding hopper (2) are completely in contact when the bottom blowing furnace is in the correct position. The feeding hopper (2) consists of a fixed part (21) and a movable part (22) slidably mounted on the surface of the fixed part (21). The fixed part (21) is used to communicate with the storage device. The bottom surface of the movable part (22) is inclined so that it can fit against the top surface of the receiving hopper (1) within its sliding stroke range to compensate for the rotation angle error of the bottom blowing furnace. The fixed part (21) has sliders (211) fixedly installed on both outer sides perpendicular to the axis of the bottom blower furnace. The movable part (22) has slide rails (221) for accommodating the sliders (211) on both sides perpendicular to the axis of the bottom blower furnace. The sliding cooperation between the movable part (22) and the fixed part (21) is achieved through the cooperation between the sliders (211) and the slide rails (221). The slide rail (221) and the slider (211) are both arc-shaped, and the slide rail (221) and the slider (211) are coaxial with the bottom blowing furnace, so that the sliding trajectory of the moving part (22) coincides with the moving trajectory of the receiving hopper (1) when the bottom blowing furnace rotates.

2. The bottom-blown furnace feeding device according to claim 1, characterized in that: The receiving hopper (1) adopts a square-to-round diameter variable pipe, and the discharging hopper (2) adopts a round pipe, so that the opening shape of the top surface of the receiving hopper (1) is the same as the opening shape of the bottom surface of the discharging hopper (2).

3. The bottom-blown furnace feeding device according to claim 1, characterized in that: A position holding device (3) is provided between the movable part (22) and the fixed part (21). The position holding device (3) is used to keep the movable part (22) in the position closest to the receiving hopper (1) during the stroke of the movable part (22) when it is not subjected to external force.

4. The bottom-blown furnace feeding device according to claim 3, characterized in that: The position holding device (3) includes a first spring seat (31), a second spring seat (32), and a holding spring (33). The first spring seat (31) and the second spring seat (32) are respectively fixedly connected to the fixed part (21) and the movable part (22). The two ends of the holding spring (33) are respectively fixedly connected to the first spring seat (31) and the second spring seat (32) to hold the position of the movable part (22).

5. The bottom-blown furnace feeding device according to claim 1, characterized in that: The fixed part (21) without the slider (211) has baffles (41) fixedly installed on the two side walls. The movable part (22) without the slide rail (221) has grooves (42) for the baffles (41) to pass through on the two side walls. The baffles (41) and the grooves (42) are both arc-shaped and coaxial with the bottom blower. The baffles (41) seal the open part inside the movable part (22) to prevent material leakage.

6. The bottom-blown furnace feeding device according to claim 3, characterized in that: Sealing gaskets are installed on the bottom surface of the movable part (22) and the top surface of the receiving hopper (1) to increase the sealing effect after the two are put together.

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