Novel air bellow sealing device and equipment

Abstract

The utility model discloses a novel air bellow sealing device which comprises a friction plate arranged below a trolley; the connecting part is arranged below the friction plate and enables the top of the friction plate to make contact with the bottom face of the trolley in the vertical direction, and meanwhile the connecting part is connected to the side, close to trolley wheels, of the air bellow beam in a sealed mode. The auxiliary device can assist a floating plate-slide way type sealing structure in improving the sealing effect, and the air draft area of the air bellow is not affected.

Description

Technical Field

[0001] The utility model relates to the field of mechanical equipment, and more specifically, to a novel bellows sealing device and equipment. Background Art

[0002] The trolley is the main operating component of equipment such as sintering machines, roasting machines and decarbonizing machines. Its main function is to form a running rotary chain between the head and tail wheels of the equipment to form a transmission cycle. The bellows is located under the trolley. After the trolley is filled with materials, it runs on the trolley track. The bellows draw air from the bottom of the trolley. In order to achieve a good exhaust effect of the bellows and ensure the efficiency of the hot air system in the equipment, it is necessary to ensure that there is a reliable seal between the bellows and the trolley, without air leakage or as little air leakage as possible. Taking the sintering machine as an example, the furnace cover, trolley and bellows form the hot air system of the sintering machine. The whole system is in a negative pressure state. Only the air that enters through the surface of the trolley material is effective air. The air that does not pass through the surface of the material is invalid air and leaking air. The external environment inevitably leaks air into the system, which not only wastes the power consumption of the main exhaust fan, but also causes a decrease in productivity. Reducing air leakage can significantly reduce the power consumption of the main exhaust fan (the power consumption of the main exhaust fan can reach 80% of the total power consumption of the whole plant), thereby improving productivity. Therefore, air leakage prevention and control of sintering machines has always been an important energy-saving and production-preserving task, and has always been widely valued.

[0003] The seals of the trolley and the bellows are mostly achieved by contacting an elastic sliding plate arranged on the bottom of the trolley with slideways arranged on both sides of the bellows. The sliding plate-slideway seal relies on the pressure of the spring above the sliding plate to make the upper and lower planes contact each other during relative sliding to achieve sealing. Unreasonable selection of spring type and material, poor lubrication of the contact surface between the sliding plate and the slideway, uneven contact surface between the sliding plate and the slideway, improper coordination between the length of the door frame for setting the sliding plate and the length of the trolley body, deviation of the trolley, etc. will all lead to failure of the sealing of the sliding plate-slideway. The effect of using the sliding plate-slideway seal alone is not good, and it is necessary to add an anti-leakage sealing plate to improve the sealing effect. For example, in the utility model patent with announcement number CN212585478U and name "Bellows Sealing Device for Sintering Machine", a bellows sealing device for a sintering machine is disclosed, including a sintering machine bellows and a sealing assembly, the sealing assembly including an air-blocking baffle, an air-blocking member and a reinforcing plate, the air-blocking baffle and the air-blocking member are both vertically arranged on the top wall of the beam and extend along the length direction of the beam, the reinforcing plate is provided on at least one side in the thickness direction of the air-blocking baffle, the reinforcing plate is connected to the air-blocking member and the top wall of the beam, although the sealing effect can be improved by the air-blocking member, it will affect the exhaust area of ​​the bellows, therefore, on the basis of not affecting the exhaust area of ​​the bellows, a new type of bellows sealing device is urgently needed to assist the swimming plate-slide type sealing structure to achieve a better sealing effect. Utility Model Content

[0004] An object of the present invention is to solve at least the above problems and to provide at least the advantages which will be described below.

[0005] Another object of the utility model is to provide a novel bellows sealing device, which can assist the swimming plate-slideway sealing structure to form a double-layer sealing structure, thereby improving the sealing effect between the trolley and the bellows beam, while not affecting the exhaust area of ​​the bellows.

[0006] In order to achieve these purposes and other advantages according to the utility model, a novel bellows sealing device is provided, comprising:

[0007] A friction plate, which is arranged below the trolley;

[0008] A connecting portion is arranged below the friction plate and vertically connects the top of the friction plate to the bottom surface of the trolley, and the connecting portion is sealed and connected to the side of the bellows beam close to the wheel of the trolley. Preferably, the connecting portion includes:

[0009] An L-shaped fixing plate is arranged on a side of the bellows beam close to the wheels of the trolley, and comprises a vertical fixing plate sealedly connected to the side of the bellows beam and a horizontal fixing plate arranged away from the bellows beam;

[0010] A pair of fixed baffles, which are arranged in parallel on the horizontal fixed plate, and the pair of fixed baffles are respectively arranged on both sides of the friction plate and fix the friction plate in the horizontal direction;

[0011] An adjustment assembly includes a plurality of adjustment bolts threadedly connected to a horizontal fixing plate, wherein the free ends of the adjustment bolts extend into grooves at the bottom of the friction plate and allow an adjustment space to be provided between the friction plate and the horizontal fixing plate, and wherein the adjustment bolts include a bolt body connected to the horizontal fixing plate and a spring arranged on the top of the bolt body, wherein the spring is connected to the friction plate.

[0012] Preferably, the elastic coefficient of the spring is K=8~20kg / mm.

[0013] Preferably, a filling material is provided in the adjustment space, and the filling material includes but is not limited to aluminum silicate fiber blocks.

[0014] Preferably, a pair of fixed baffles are an inner baffle and an outer baffle arranged close to the vertical fixed plate, wherein the inner baffle is a straight baffle and the outer baffle is an L-shaped angle steel, and an angle steel bar plate is provided on the L-shaped angle steel.

[0015] Preferably, the novel bellows sealing device also includes a pair of L-shaped dustproof plates arranged on both sides of the friction plate, which are located above a pair of fixed baffles. The vertical portion of each L-shaped dustproof plate is connected to the friction plate, and the horizontal portion is connected to the horizontal fixed plate through a ring chain.

[0016] Preferably, a Z-shaped dustproof soft plate is provided between the L-shaped dustproof plate and the friction plate on the inner baffle plate, and the Z-shaped dustproof soft plate includes a pair of parallel vertical soft plates, and the pair of vertical soft plates are respectively in contact with the friction plate and the vertical fixed plate.

[0017] Preferably, a guide rod is provided between the adjacent adjusting bolts and extends into the friction plate and can move up and down in the friction plate.

[0018] Preferably, the friction plate is made of oil-containing nylon or a lubrication hole is provided on the friction plate.

[0019] The utility model further claims to protect a device, which includes the novel bellows sealing device described in the item.

[0020] The utility model at least includes the following beneficial effects: the new bellows sealing device provided by the utility model is arranged in pairs on the outer sides of a pair of bellows beams, and is sealed with the bottom surface of the trolley by means of a friction plate, which does not affect the exhaust area of ​​the bellows; the new bellows sealing device provided by the utility model is arranged on the outer side surface of the bellows beam, and seals the gap between the trolley and the bellows beam from the bottom of the trolley upwards, and is used in combination with the traditional swimming plate-slideway type sealing device to minimize air leakage; the friction plate of the new bellows sealing device provided by the utility model is made of oil-containing nylon, and the top of the friction plate is coated with lubricating oil, which has small friction and long service life; the new bellows sealing device provided by the utility model effectively reduces air leakage, saves energy consumption of the main exhaust fan, and improves productivity.

[0021] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the assembly of a novel bellows sealing device in one technical solution of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a novel bellows sealing device in another technical solution of the utility model;

[0024] Figure 3 It is a cross-sectional schematic diagram of a novel bellows sealing device described in another technical solution of the utility model. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0026] It should be understood that the terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or more other elements or combinations thereof.

[0027] like Figures 1 to 3 As shown, the utility model provides a novel bellows sealing device, comprising:

[0028] A friction plate 2, which is arranged below the trolley;

[0029] The connecting portion is arranged below the friction plate 2 and enables the top of the friction plate 2 to contact the bottom surface of the trolley in the vertical direction. Meanwhile, the connecting portion is sealed and connected to the side of the bellows beam 5 close to the wheel of the trolley.

[0030] In the above technical solution, the new bellows sealing device is distributed in an annular array on the annular running line or the new bellows sealing device is distributed at intervals on the straight running line. The new bellows sealing device is arranged on the side of the bellows beam 5 close to the wheel of the trolley, and is used to seal the seal between the trolley and the bellows beam 5. It is used in combination with the traditional swimming plate-slideway type sealing device to form a double-layer sealing structure, which greatly ensures the sealing between the trolley and the bellows beam 5. The new bellows sealing device includes a friction plate 2, which is sealed and connected to the side of the bellows beam 5 close to the wheel of the trolley through a connecting portion, and the friction plate 2 is fixed under the bottom surface of the trolley through the connecting portion and contacts with the bottom surface of the trolley, so that there is no gap between the friction plate 2 and the bellows beam 5 through the connecting portion, and there is no gap between the friction plate 2 and the bottom surface of the trolley, thereby ensuring the sealing between the trolley and the bellows beam 5.

[0031] like Figures 1 to 3 As shown, in one of the technical solutions, the connecting portion includes:

[0032] An L-shaped fixing plate 10 is arranged on a side of the bellows beam 5 close to the wheels of the trolley, and includes a vertical fixing plate sealed to the side of the bellows beam and a horizontal fixing plate arranged away from the bellows beam 5;

[0033] A pair of fixed baffles, which are arranged in parallel on the horizontal fixed plate, and the pair of fixed baffles are respectively arranged on both sides of the friction plate and fix the friction plate 2 in the horizontal direction;

[0034] The adjusting assembly includes a plurality of adjusting bolts 13 threadedly connected to the horizontal fixing plate, the free ends of the adjusting bolts 13 extend into the grooves at the bottom of the friction plate 2 and allow an adjustment space to be provided between the friction plate 2 and the horizontal fixing plate, the adjusting bolts 13 include a bolt body connected to the horizontal fixing plate and a spring arranged on the top of the bolt body, and the spring is connected to the friction plate.

[0035] In the above technical scheme, the new bellows sealing device is arranged in pairs on the outside of a pair of bellows beams 5, which does not affect the exhaust area of ​​the bellows. The new bellows sealing device includes an L-shaped fixed plate 10, a pair of fixed baffles and an adjustable friction plate 2, wherein the L-shaped fixed plate 10 is arranged on the side of the bellows beam 5 close to the trolley wheel, that is, the L-shaped fixed plate 10 is arranged on the outside of the bellows beam 5, and the L-shaped fixed plate 10 is connected to the bellows beam 5, wherein the vertical fixed plate of the L-shaped fixed plate 10 is arranged parallel to the bellows beam 5 and fits the bellows beam 5, and the horizontal fixed plate of the L-shaped fixed plate 10 extends to the outside of the bellows beam 5; the pair of fixed baffles are vertically arranged on the horizontal fixed plate of the L-shaped fixed plate 10, a pair of fixed baffles are arranged in parallel and form a vertical accommodating cavity to set the adjustable friction plate 2, and a pair of fixed baffles can be symmetrically arranged or asymmetrically arranged, considering Taking into account the limited space for setting the fixed baffle of the vertical fixed plate close to the L-shaped fixed plate, it is preferred that a pair of fixed baffles are asymmetrically arranged, namely an inner baffle 11 and an outer baffle 6 arranged close to the vertical fixed plate; the adjustable friction plate 2 is arranged in a accommodating cavity formed by a pair of fixed baffles, and is in contact with the ground of the trolley 1 through a plurality of adjusting bolts 13 arranged at the lower portion thereof to form a sealing structure, which seals the gap between the bellows beam 5 and the trolley 1 from the bottom of the trolley 1 upward. Compared with the traditional swimming plate-slideway sealing structure, it is not necessary to set a swimming plate and its control structure at the bottom of the trolley, and is generally applicable to various trolleys. The traditional swimming plate-slideway sealing structure seals the slideway on the bellows beam from the swimming plate arranged at the bottom of the trolley downward, and has more stringent requirements on the adaptability of the swimming plate and the slideway. The adaptability of the friction plate 2 and the bottom surface of the trolley 1 in the present application only needs to consider the height of the friction plate 2, and the probability of sealing failure is low. Figure 1 As shown, it has good sealing effect when used alone, and can also be used with the traditional swimming plate-slideway type sealing device ( Figure 1 The friction plate 2 and the bottom surface of the trolley 1 are adapted to avoid the adverse effect of the rough bottom surface of the trolley 1 on the sealing effect by providing a friction plate 2 with a certain elasticity, thereby greatly improving the sealing effect of the bellows.

[0036] like Figure 2 and Figure 3 In one of the technical solutions, the adjusting bolt 13 includes a bolt body and a spring arranged on the top of the bolt body, and the spring extends into the friction plate 2. The friction plate 2 is brought into contact with the bottom surface of the trolley by the pressure of the spring.

[0037] In one of the technical solutions, the elastic coefficient of the spring is K=8~20kg / mm ​​to ensure that the friction plate and the bottom surface of the trolley are in contact.

[0038] In one of the technical solutions, a filling material is provided in the adjustment space 12, and the filling material includes but is not limited to an aluminum silicate fiber block. The aluminum silicate fiber block serves to increase the sealing between the friction plate 2 and the fixed baffle. Without affecting the function of the new bellows sealing device, other flexible and sealing materials may be used instead of the aluminum silicate fiber block.

[0039] like Figure 2 and Figure 3 As shown, in one of the technical solutions, a pair of fixed baffles are respectively an inner baffle 11 and an outer baffle 6 arranged close to the vertical fixed plate, wherein the inner baffle 6 is a straight baffle, and the outer baffle is an L-shaped angle steel, and an angle steel plate 16 is provided on the L-shaped angle steel. A pair of fixed baffles are asymmetrically arranged on the horizontal fixed plate by bolts 14, so that the fixed baffles are arranged closer to the vertical plate of the L-shaped fixed plate 10, thereby ensuring the compactness of the structure of the new bellows sealing device.

[0040] Figure 2 and Figure 3 It can be seen that in one of the technical solutions, the new bellows sealing device also includes a pair of L-shaped dustproof plates 8 arranged on both sides of the friction plate 2, which are located above a pair of fixed baffles. The vertical portion of each L-shaped dustproof plate 8 is connected to the friction plate 2, and the horizontal portion is connected to the horizontal fixed plate through a ring chain 7. The pair of L-shaped dustproof plates 8 are connected to the friction plate 2 through bolts 17 and are arranged on both sides of the friction plate 2 to prevent dust and the like from polluting the fixed baffle and the horizontal fixed plate during the operation of the trolley.

[0041] like Figure 2 As shown, in one of the technical solutions, a Z-shaped dustproof soft plate 9 is provided between the L-shaped dustproof plate and the friction plate on the inner baffle plate. The Z-shaped dustproof soft plate 9 includes a pair of parallel vertical soft plates, which are respectively in contact with the friction plate 2 and the vertical fixed plate to prevent dust and the like from polluting the horizontal fixed plate during the operation of the trolley.

[0042] like Figure 3 As shown, in one of the technical solutions, a guide rod 15 is provided between the adjacent adjusting bolts 13 and extends into the friction plate 2 and can move up and down in the friction plate 2 to limit the movement of the friction plate in the horizontal direction.

[0043] like Figures 1 to 3In one of the technical solutions, the friction plate 2 is made of oil-containing nylon material with self-lubricating properties. The nylon material can better adapt to different trolley bottom surfaces. Lubrication holes can also be set to lubricate the friction plate 2 through an automatic lubrication device. The automatic lubrication device is a prior art and is not specifically elaborated in this application. The friction between the friction plate 2 and the bottom surface of the trolley is reduced, and the service life of the new bellows sealing device is improved. In actual use, the material of the friction plate can be appropriately adjusted according to the temperature conditions to achieve a flexible lubrication effect under specific temperature conditions.

[0044] The utility model further claims to protect a device, which includes the novel bellows sealing device described in item 1, and the device includes a sintering machine, a decarbonizing machine and a roasting machine.

[0045] As described above, according to the utility model, the utility model at least includes the following beneficial effects: the new bellows sealing device provided by the utility model is arranged in pairs on the outer side of a pair of bellows beams, and is sealed with the bottom surface of the trolley by means of a friction plate, which does not affect the exhaust area of ​​the bellows; the new bellows sealing device provided by the utility model is arranged on the outer side surface of the bellows beam, and seals the gap between the trolley and the bellows beam from the bottom of the trolley upward, and is used in combination with the traditional swimming plate-slide type sealing device to minimize air leakage; the friction plate of the new bellows sealing device provided by the utility model is made of oil-containing nylon, and the top of the friction plate is coated with lubricating oil, which has small friction and long service life; the new bellows sealing device provided by the utility model effectively reduces air leakage, saves energy consumption of the main exhaust fan, and improves productivity.

[0046] The number of devices and processing scales described here are used to simplify the description of the utility model. The application, modification and variation of the novel bellows sealing device of the utility model are obvious to those skilled in the art.

[0047] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A new bellows sealing device, characterized in that: include: A friction plate, which is arranged below the trolley; The connecting portion is arranged below the friction plate and enables the top of the friction plate to contact the bottom surface of the trolley in the vertical direction. Meanwhile, the connecting portion is sealed and connected to one side of the bellows beam close to the wheel of the trolley.

2. The novel bellows sealing device according to claim 1, characterized in that: The connecting portion comprises: An L-shaped fixing plate is arranged on a side of the bellows beam close to the wheels of the trolley, and comprises a vertical fixing plate sealedly connected to the side of the bellows beam and a horizontal fixing plate arranged away from the bellows beam; A pair of fixed baffles, which are arranged in parallel on the horizontal fixed plate, and the pair of fixed baffles are respectively arranged on both sides of the friction plate and fix the friction plate in the horizontal direction; An adjustment assembly includes a plurality of adjustment bolts threadedly connected to a horizontal fixing plate, wherein the free ends of the adjustment bolts extend into grooves at the bottom of the friction plate and allow an adjustment space to be provided between the friction plate and the horizontal fixing plate, and wherein the adjustment bolts include a bolt body connected to the horizontal fixing plate and a spring arranged on the top of the bolt body, wherein the spring is connected to the friction plate.

3. The novel bellows sealing device as claimed in claim 2, characterized in that: The elastic coefficient of the spring is K=8~20kg / mm.

4. The novel bellows sealing device as claimed in claim 2, characterized in that: A filling material is arranged in the adjustment space, and the filling material is an aluminum silicate fiber block.

5. The novel bellows sealing device as claimed in claim 2, characterized in that: A pair of fixed baffles are an inner baffle and an outer baffle arranged close to the vertical fixed plate, wherein the inner baffle is a straight baffle, and the outer baffle is an L-shaped angle steel, and an angle steel bar plate is arranged on the L-shaped angle steel.

6. The novel bellows sealing device as claimed in claim 5, characterized in that: It also includes a pair of L-shaped dustproof plates arranged on both sides of the friction plate, which are located above a pair of fixed baffles. The vertical part of each L-shaped dustproof plate is connected to the friction plate, and the horizontal part is connected to the horizontal fixed plate through a ring chain.

7. The novel bellows sealing device as claimed in claim 6, characterized in that: A Z-shaped dustproof soft plate is also provided between the L-shaped dustproof plate and the friction plate on the inner baffle plate. The Z-shaped dustproof soft plate includes a pair of parallel vertical soft plates, and the pair of vertical soft plates are in contact with the friction plate and the vertical fixed plate respectively.

8. The novel bellows sealing device as claimed in claim 5, characterized in that: A guide rod is arranged between the adjacent adjusting bolts and extends into the friction plate and can move up and down in the friction plate.

9. The novel bellows sealing device as claimed in claim 2, characterized in that: The friction plate is made of oil-containing nylon material or a lubrication hole is arranged on the friction plate.

10. A device, characterized in that: The equipment is a sintering machine, a decarbonizing machine or a roasting machine; the equipment includes the new bellows sealing device according to any one of claims 1 to 9.

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