A sealing structure for a well-type gas furnace

Abstract

The present invention relates to the field of pit furnaces, and particularly to a sealing structure of a pit gas furnace, including: a furnace cover for sealing the pit furnace body. A rotating disk is rotatably connected to the inner wall of the furnace cover. A first motor is fixedly connected to the top end of the furnace cover. The output shaft of the first motor penetrates through the furnace cover and is fixedly connected to the top end of the rotating disk. A plurality of chutes are annularly arranged at the bottom end of the rotating disk. By providing a scraping belt, scraping plates and sealing blocks, the waste residues attached to the top of the pit furnace body are scraped off by the scraping belt and the scraping plates, so that the top of the pit furnace body remains flat, which is conducive to making the furnace cover fit tightly with the furnace opening, improving the sealing performance inside the furnace. And by providing the sealing blocks, the edge of the top of the pit furnace body is sealed, preventing the flue gas from entering the furnace cover through the chutes. At the same time, since there is a material receiving groove at the bottom end of the sealing block, the waste residues scraped off by the scraping plates can be collected, which is conducive to preventing the waste residues from falling into the furnace and increasing the problem of the content of waste residues in the furnace.

Description

Technical Field

[0001] The present invention relates to the field of pit furnaces, and in particular to a sealing structure for a pit gas furnace. Background Art

[0002] A pit furnace is a periodic operation furnace, suitable for the heat treatment of rod-shaped and long-axis parts. The structure of the pit furnace is that the furnace body is a deep cylindrical well, and the workpieces are vertically loaded into the furnace by a special crane for heating.

[0003] For example, the utility model patent with the application number CN202323074121.4 discloses a rotary positioning device for a pit furnace cover, including a furnace body, an adjusting mechanism is arranged on the furnace body, a furnace cover is arranged on the adjusting mechanism, and the adjusting mechanism is used to adjust and fix the position of the furnace cover. The adjusting mechanism includes a fixing plate, a hydraulic cylinder, a moving plate, a motor, a rotating shaft and an L-shaped rod. The fixing plate is fixedly installed on the outer wall of the right side of the furnace body, and the hydraulic cylinder is fixedly installed on the top of the fixing plate.

[0004] In the prior art, after the workpiece heating is completed, it is necessary to use a crane to lift the workpiece out of the furnace body. Due to the instability of the crane, during the process of lifting the workpiece, the workpiece is prone to shaking, so that the oxide waste residues on the workpiece are likely to fall off. And the workpiece needs to pass through the top end of the furnace body when being lifted out of the furnace body, which makes the top end of the furnace body easy to accumulate waste residues, causing the gap between the furnace cover and the furnace opening to be blocked by the waste residues, resulting in the furnace cover and the furnace opening not being tightly closed, leading to the leakage of the furnace atmosphere or the entry of external air, thereby affecting the working efficiency and heat treatment quality of the pit furnace.

[0005] Therefore, the present invention proposes a sealing structure for a pit gas furnace to solve the above problems. Summary of the Invention

[0006] To achieve the above object, the technical solution adopted by the present invention is: a sealing structure for a pit gas furnace, including:

[0007] A furnace cover for sealing the pit furnace body. A rotating disk is rotatably connected to the inner wall of the furnace cover. A first motor is fixedly connected to the top end of the furnace cover. The output shaft of the first motor penetrates through the furnace cover and is fixedly connected to the top end of the rotating disk. A chute is annularly arranged at the bottom end of the rotating disk;

[0008] Several scraping blocks are slidably connected in the chute, and a first elastic connecting piece is connected between the scraping block and the rotating disk;

[0009] A scraping belt is rotatably connected to the bottom end of the scraping block, and scraping plates are fixedly arranged on the surface of the scraping belt in an array;

[0010] A transmission component is used to drive the scraping belt to rotate, so that the scraping plates scrape the waste residues at the top port of the pit furnace body;

[0011] A sealing block, which is slidably connected to the bottom end of the scraping block. A material receiving groove is formed at the top end of the sealing block for collecting the waste residues scraped by the scraping plate.

[0012] A pushing assembly, which is used to push the sealing block to move the sealing block close to and press against the inner wall of the top end of the well-type furnace body, so as to seal the edge of the top end of the well-type furnace body.

[0013] Specifically, in the prior art, after the workpiece is heated, a crane is needed to lift the workpiece out of the furnace body. Due to the instability of the crane, the workpiece is prone to shake during the process of lifting the workpiece, so that the oxide waste residues on the workpiece are likely to fall off. And the workpiece needs to pass through the top end of the furnace body when being lifted out of the furnace body, which makes the top end of the furnace body easy to accumulate waste residues, causing the gap between the furnace cover and the furnace mouth to be blocked by the waste residues, resulting in the furnace cover and the furnace mouth not being tightly closed, leading to the leakage of the furnace atmosphere or the entry of external air, thereby affecting the working efficiency and heat treatment quality of the well-type furnace. This technical solution can solve the above problems. The specific operation is as follows: First, start the second motor to make the L-shaped driving frame drive the furnace cover to rotate to the directly above the well-type furnace body. Then start the cylinder to make the telescopic rod of the cylinder move downward, so that the furnace cover moves downward, making the scraping plate contact with the top end of the well-type furnace body. Under the extrusion effect, the scraping block drives the scraping belt and the scraping plate to move upward along the chute.

[0014] After the scraping plate contacts the top end of the well-type furnace body, start the first motor and the transmission assembly to make the rotating disk and the scraping belt rotate, so that the scraping plate rotates along the top end of the well-type furnace body, thereby scraping off the waste residues attached to the top end of the well-type furnace body, keeping the top end of the well-type furnace body flat, which is conducive to making the furnace cover and the furnace mouth fit tightly and improving the sealing performance inside the furnace.

[0015] During the process of the scraping block moving upward along the chute, through the pushing assembly, the sealing block is moved close to and pressed against the inner wall of the top end of the well-type furnace body, thereby sealing the edge of the top end of the well-type furnace body, preventing the flue gas from entering the furnace cover through the chute. At the same time, since there is a material receiving groove at the bottom end of the sealing block, it can collect the waste residues scraped and dropped by the scraping plate, which is conducive to avoiding the waste residues from falling into the furnace and increasing the problem of the waste residue content in the furnace.

[0016] Preferably, it further includes:

[0017] Several arc-shaped mounting grooves, which are arc-arrayed and opened at the bottom end of the rotating disk, and each arc-shaped mounting groove is located between two chutes;

[0018] An arc-shaped mounting seat, which is slidably connected in the arc-shaped mounting groove, and an arc-shaped sealing gasket is fixedly connected to the bottom of the arc-shaped mounting seat.

[0019] Specifically, by setting the arc-shaped mounting seat and the arc-shaped gasket, during the downward movement of the furnace cover, the arc-shaped gasket contacts the top end of the well-type furnace body, and the contact part is sealed by the arc-shaped gasket, thereby improving the sealing performance inside the furnace.

[0020] Preferably, it further includes:

[0021] Two driving gears, which are symmetrically and rotatably connected to the inner side wall of the sliding groove;

[0022] Two first racks, which are symmetrically and slidably connected to both sides of the scraping block. The first racks are meshed with the driving gears at the corresponding positions, and a second elastic connecting piece is connected between the first racks and the scraping block;

[0023] Both ends of the arc-shaped mounting seat are symmetrically and fixedly connected with second racks, and the second racks are meshed with the driving gears at the corresponding positions;

[0024] Specifically, by setting the first rack, the driving gear and the second rack, during the upward movement of the scraping block along the sliding groove, the first rack is meshed with the driving gear, so that the driving gear rotates. Under the meshing action, the second rack moves downward, thereby applying a downward pressure to the arc-shaped mounting seat, thereby increasing the contact force between the arc-shaped gasket and the well-type furnace body, reducing the gap, making the arc-shaped gasket fit tightly with the well-type furnace body, and further improving the sealing performance inside the furnace.

[0025] Preferably, the transmission assembly includes:

[0026] Two transmission rollers, which are symmetrically and rotatably connected to the inner bottom wall of the scraping block, and the scraping belt is arranged on the surfaces of the two transmission rollers;

[0027] A one-way bearing, which is arranged on the end surface of the rotating shaft of one of the transmission rollers and is rotatably connected to the outer side wall of the scraping block;

[0028] A link mechanism, one end of which is rotatably connected to the rotating shaft of the transmission roller, and the other end is rotatably connected to a driving rod, and the driving rod is slidably connected to the outer side wall of the scraping block;

[0029] A driving seat, which is slidably connected inside the furnace cover. The bottom end of the driving seat is rotatably connected with a rotating ring. The bottom end of the rotating ring is fixedly connected with connecting rods in an array, and the bottom end of the connecting rods is fixedly connected to the top end of the scraping block. An annular wave groove is opened at the bottom end of the driving seat, and the top end of the driving rod is slidably connected in the annular wave groove.

[0030] Preferably, the pushing assembly includes:

[0031] Two drive plates, the two drive plates are symmetrically distributed on both sides of the sealing block, the top end of the drive plate is fixedly connected to the bottom end of the rotating disk, a drive groove is formed on the side wall of the drive plate, the drive groove has an inclined groove and a straight groove, and connection pins are symmetrically and fixedly connected to both sides of the sealing block, and the connection pins are slidably connected in the drive groove.

[0032] Preferably, it further includes:

[0033] An L-shaped mounting bracket, the L-shaped mounting bracket is fixedly connected to the outer side wall of the well-type furnace body, a cylinder is fixedly connected to the top end of the L-shaped mounting bracket, the top end of the telescopic rod of the cylinder is fixedly connected to a mounting plate, and the mounting plate is slidably connected to the side wall of the L-shaped mounting bracket;

[0034] A second motor, the second motor is fixedly connected to the mounting plate, the top end of the output shaft of the second motor is fixedly connected to an L-shaped driving bracket, and the top end of the L-shaped driving bracket is fixedly connected to the top end of the furnace cover.

[0035] Preferably, the first elastic connection member includes:

[0036] Two L-shaped brackets, the two L-shaped brackets are symmetrically and fixedly connected to the top end of the rotating disk, a first sliding rod is slidably connected to the end of the L-shaped bracket, and the bottom end of the first sliding rod is fixedly connected to the top end of the scraping block;

[0037] A first spring, the two ends of the first spring are respectively fixedly connected to the L-shaped bracket and the scraping block.

[0038] Preferably, the second elastic connection member includes:

[0039] A second sliding rod, the second sliding rod is fixedly connected to the outer side wall of the scraping block, and the first rack is slidably connected to the surface of the second sliding rod;

[0040] A second spring, the two ends of the second spring are respectively fixedly connected to the scraping block and the first rack.

[0041] Preferably, the scraping plate is an inclined plate.

[0042] Preferably, the arc-shaped sealing gasket is a metal sealing gasket, and an inert gas is filled inside it.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] 1. The present invention sets a scraping belt, a scraping plate and a sealing block. The scraping belt and the scraping plate are used to scrape the waste residue attached to the top of the well-type furnace body, so that the top of the well-type furnace body remains flat, which is beneficial to making the furnace cover fit tightly with the furnace mouth, improving the sealing performance inside the furnace. And by setting the sealing block, the edge of the top of the well-type furnace body is sealed, preventing the flue gas from entering the furnace cover through the chute. At the same time, since there is a material receiving groove at the bottom of the sealing block, it can collect the waste residue scraped off by the scraping plate, which is beneficial to avoiding the waste residue from falling into the furnace and increasing the problem of the waste residue content inside the furnace.

[0045] 2. The present invention sets an arc-shaped mounting seat and an arc-shaped sealing gasket. During the downward movement of the furnace cover, the arc-shaped sealing gasket contacts the top of the well-type furnace body, and the contact part is sealed by the arc-shaped sealing gasket, thereby improving the sealing performance inside the furnace.

[0046] 3. The present invention sets a first rack, a driving gear and a second rack. During the upward movement of the scraping block along the chute, the first rack meshes with the driving gear, causing the driving gear to rotate. Under the meshing action, the second rack moves downward, thereby applying a downward pressure to the arc-shaped mounting seat, improving the contact force between the arc-shaped sealing gasket and the well-type furnace body, reducing the gap, making the arc-shaped sealing gasket fit tightly with the well-type furnace body, and further improving the sealing performance inside the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0048] Figure 2 is a sectional view of the well-type furnace body of the present invention;

[0049] Figure 3 is a sectional view of the furnace cover of the present invention;

[0050] Figure 4 is a schematic diagram of the connection between the furnace cover and the rotating disk of the present invention;

[0051] Figure 5 is Figure 4 the enlarged view at A in

[0052] Figure 6 is a schematic diagram of the connection between the scraping block and the driving seat of the present invention;

[0053] Figure 7 is Figure 6 the enlarged view at B in

[0054] Figure 8 is Figure 6 the enlarged view at C in

[0055] Figure 9 is Figure 8 the enlarged view at D in

[0056] Figure 10 Schematic connection diagram of the driving seat and the rotating ring in the present invention;

[0057] Figure 11 is Figure 10 enlarged view at position E in

[0058] Figure 12 Cross-sectional view of the scraping block in the present invention.

[0059] In the figure: well-type furnace body 1, furnace cover 2, rotating disk 3, first motor 4, sliding groove 5, scraping block 6, scraping belt 7, scraping plate 8, sealing block 9, material receiving groove 10, arc-shaped installation groove 11, arc-shaped installation seat 12, arc-shaped sealing gasket 13, driving gear 14, first rack 15, second rack 16, transmission roller 17, one-way bearing 18, first connecting rod 19, second connecting rod 20, driving rod 21, driving seat 22, rotating ring 23, connecting rod 24, annular wave groove 25, driving plate 26, driving groove 27, L-shaped installation frame 28, air cylinder 29, installation plate 30, second motor 31, L-shaped driving frame 32, L-shaped bracket 33, first sliding rod 34, first spring 35, second sliding rod 36, second spring 37. Detailed implementation manners

[0060] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations.

[0061] As Figures 1 to 12 shown, a well-type gas furnace sealing structure includes:

[0062] A furnace cover 2 for sealing the well-type furnace body 1. The inner wall of the furnace cover 2 is rotatably connected with a rotating disk 3. The top end of the furnace cover 2 is fixedly connected with a first motor 4. The output shaft of the first motor 4 penetrates through the furnace cover 2 and is fixedly connected with the top end of the rotating disk 3. A sliding groove 5 is annularly arranged at the bottom end of the rotating disk 3;

[0063] Several scraping blocks 6 are slidably connected in the sliding groove 5, and a first elastic connecting member is connected between the scraping block 6 and the rotating disk 3;

[0064] A scraping belt 7 is rotatably connected to the bottom end of the scraping block 6, and scraping plates 8 are fixedly arranged on the surface of the scraping belt 7 in an array;

[0065] A transmission assembly for driving the scraping belt 7 to rotate so that the scraping plates 8 scrape the waste residue at the top port of the well-type furnace body 1;

[0066] A sealing block 9 is slidably connected to the bottom end of the scraping block 6. A material receiving groove 10 is arranged at the top end of the sealing block 9 for collecting the waste residue scraped by the scraping plates 8;

[0067] A pushing component is used to push the sealing block 9 to move the sealing block 9 close to and press against the inner wall of the top end of the pit-type furnace body 1 to seal the top edge of the pit-type furnace body 1;

[0068] Also includes:

[0069] An L-shaped mounting frame 28, the L-shaped mounting frame 28 is fixedly connected to the outer wall of the pit-type furnace body 1, a cylinder 29 is fixedly connected to the top of the L-shaped mounting frame 28, a mounting plate 30 is fixedly connected to the top of the telescopic rod of the cylinder 29, and the mounting plate 30 is slidably connected to the side wall of the L-shaped mounting frame 28;

[0070] A second motor 31, the second motor 31 is fixedly connected to the mounting plate 30, the top end of the output shaft of the second motor 31 is fixedly connected to an L-shaped driving frame 32, and the top end of the L-shaped driving frame 32 is fixedly connected to the top end of the furnace cover 2;

[0071] Specifically, in the prior art, after the heating of the workpiece is completed, a crane is needed to lift the workpiece away from the furnace body. Due to the instability of the crane, the workpiece is prone to shaking during the lifting process, which makes the oxide waste slag on the workpiece easy to fall off. The workpiece needs to pass through the top of the furnace body when being lifted off the furnace body, which makes it easy for waste slag to accumulate on the top of the furnace body, so that the gap between the furnace cover 2 and the furnace mouth is blocked by waste slag, causing the furnace cover 2 and the furnace mouth to be not closed tightly, resulting in leakage of the atmosphere in the furnace or entry of external air, thereby affecting the working efficiency and heat treatment quality of the pit furnace. The technical solution can solve the above problems. The specific operation is as follows: first, by starting the second motor 31, the L-shaped driving frame 32 drives the furnace cover 2 to rotate to the top of the pit furnace body 1, and then the cylinder 29 is started to move the telescopic rod of the cylinder 29 downward, so that the furnace cover 2 moves downward, so that the scraper plate 8 contacts with the top of the pit furnace body 1, and is squeezed so that the scraper block 6 drives the scraper belt 7 and the scraper plate 8 to move upward along the slide groove 5;

[0072] After the scraper plate 8 comes into contact with the top of the pit furnace body 1, the first motor 4 and the transmission assembly are started to rotate the rotating disc 3 and the scraper belt 7, so that the scraper plate 8 rotates along the top of the pit furnace body 1, thereby scraping off the waste slag attached to the top of the pit furnace body 1, so that the top of the pit furnace body 1 remains flat, which is conducive to the complete fit of the furnace cover 2 and the furnace mouth, and improves the sealing performance of the furnace;

[0073] In the process of the scraper block 6 moving upward along the slide groove 5, the sealing block 9 is pushed to approach and tighten the inner wall of the top of the pit-type furnace body 1, thereby sealing the top edge of the pit-type furnace body 1 to prevent smoke from entering the furnace cover 2 through the slide groove 5. At the same time, since there is a receiving groove 10 at the bottom end of the sealing block 9, the waste slag scraped off by the scraper plate 8 can be collected, which is beneficial to prevent the waste slag from falling into the furnace and increase the waste slag content in the furnace.

[0074] As a further embodiment of the present invention, it further includes:

[0075] Several arc-shaped mounting grooves 11 are arc-arrayed and opened at the bottom end of the rotating disk 3, and each arc-shaped mounting groove 11 is located between two sliding grooves 5;

[0076] An arc-shaped mounting seat 12 is slidably connected in the arc-shaped mounting groove 11, and an arc-shaped sealing gasket 13 is fixedly connected to the bottom of the arc-shaped mounting seat 12;

[0077] Specifically, by providing the arc-shaped mounting seat 12 and the arc-shaped sealing gasket 13, during the downward movement of the furnace cover 2, the arc-shaped sealing gasket 13 contacts the top end of the well-type furnace body 1, and the contact part is sealed by the arc-shaped sealing gasket 13, thereby improving the sealing performance inside the furnace.

[0078] As a further embodiment of the present invention, it further includes:

[0079] Two driving gears 14 are symmetrically and rotatably connected to the inner side walls of the sliding grooves 5;

[0080] Two first racks 15 are symmetrically and slidably connected to both sides of the scraping block 6. The first rack 15 meshes with the driving gear 14 at the corresponding position, and a second elastic connecting member is connected between the first rack 15 and the scraping block 6;

[0081] Both ends of the arc-shaped mounting seat 12 are symmetrically and fixedly connected with second racks 16, and the second racks 16 mesh with the driving gears 14 at the corresponding positions;

[0082] Specifically, by providing the first rack 15, the driving gear 14, and the second rack 16, during the upward movement of the scraping block 6 along the sliding groove 5, the first rack 15 meshes with the driving gear 14, thereby causing the driving gear 14 to rotate. Under the meshing action, the second rack 16 moves downward, thereby applying a downward pressure on the arc-shaped mounting seat 12, thereby increasing the contact force between the arc-shaped sealing gasket 13 and the well-type furnace body 1, reducing the gap, and making the arc-shaped sealing gasket 13 fit tightly with the well-type furnace body 1, further improving the sealing performance inside the furnace.

[0083] As a further embodiment of the present invention, the transmission assembly includes:

[0084] Two transmission rollers 17 are symmetrically and rotatably connected to the inner bottom wall of the scraping block 6, and a scraping belt 7 is arranged on the surfaces of the two transmission rollers 17;

[0085] A one-way bearing 18 is arranged on the end surface of the rotating shaft of one of the transmission rollers 17, and the one-way bearing 18 is rotatably connected to the outer side wall of the scraping block 6;

[0086] The link mechanism, one end of the link mechanism is rotatably connected to the rotating shaft of the transmission roller 17, and the other end is rotatably connected to a driving rod 21. The driving rod 21 is slidably connected to the outer side wall of the scraping block 6;

[0087] The driving seat 22, the driving seat 22 is slidably connected in the furnace cover 2. The bottom end of the driving seat 22 is rotatably connected to a rotating ring 23. The bottom end of the rotating ring 23 is fixedly connected with a connecting rod 24 in an array. The bottom end of the connecting rod 24 is fixedly connected to the top end of the scraping block 6. An annular wave groove 25 is opened at the bottom end of the driving seat 22. The top end of the driving rod 21 is slidably connected in the annular wave groove 25;

[0088] Specifically, by setting the driving seat 22 and the annular wave groove 25, during the process of the scraping block 6 moving upward along the sliding groove 5, under the connection action of the connecting rod 24, the driving seat 22 moves upward along the inner wall of the furnace cover 2, so that the distance between the driving rod 21 and the driving seat 22 is always the same;

[0089] During the rotation of the rotating disk 3, the driving rod 21 slides along the annular wave groove 25. Driven by the annular wave groove 25, the driving rod 21 performs a reciprocating linear motion and pushes the link mechanism to swing. Under the action of the link mechanism, the transmission roller 17 rotates, thereby driving the scraping belt 7 to rotate, so that the scraping plate 8 scrapes the waste residue at the top of the shaft furnace body 1.

[0090] Further, the link mechanism includes a first link 19 and a second link 20. One end of the first link 19 is rotatably connected to the rotating shaft of the transmission roller 17, and the other end is rotatably connected to the second link 20. The second link 20 is rotatably connected to the bottom end of the driving rod 21.

[0091] As a further embodiment of the present invention, the pushing assembly includes:

[0092] Two driving plates 26, the two driving plates 26 are symmetrically distributed on both sides of the sealing block 9. The top end of the driving plate 26 is fixedly connected to the bottom end of the rotating disk 3. A driving groove 27 is opened on the side wall of the driving plate 26. The driving groove 27 has an inclined groove and a straight groove. Connecting pins are symmetrically and fixedly connected to both sides of the sealing block 9. The connecting pins are slidably connected in the driving groove 27;

[0093] Specifically, by setting the driving plate 26 and the driving groove 27, during the process of the scraping block 6 moving upward along the sliding groove 5, the sealing block 9 moves upward along the driving plate 26. Driven by the inclined groove, the sealing block 9 quickly approaches the inner wall at the top of the shaft furnace body 1 and abuts against the inner wall at the top of the shaft furnace body 1, sealing the edge at the top of the shaft furnace body 1, and at the same time collecting the waste residue scraped off by the scraping plate 8.

[0094] As a further embodiment of the present invention, the first elastic connecting member includes:

[0095] Two L-shaped brackets 33 are symmetrically and fixedly connected to the top end of the rotating disk 3. A first sliding rod 34 is slidably connected to the end of the L-shaped bracket 33, and the bottom end of the first sliding rod 34 is fixedly connected to the top end of the scraping block 6.

[0096] A first spring 35, with both ends of the first spring 35 fixedly connected to the L-shaped bracket 33 and the scraping block 6 respectively.

[0097] Specifically, by setting the first spring 35, during the process of the scraping plate 8 contacting and squeezing the top end of the well-type furnace body 1, under the action of pressure, the scraping block 6 moves upward, causing the first spring 35 to generate elastic force, improving the contact force between the scraping plate 8 and the top end of the well-type furnace body 1, thereby improving the slag removal effect.

[0098] As a further implementation scheme of the present invention, the second elastic connecting member includes:

[0099] A second sliding rod 36, which is fixedly connected to the outer side wall of the scraping block 6, and a first rack 15 is slidably connected to the surface of the second sliding rod 36.

[0100] A second spring 37, with both ends of the second spring 37 fixedly connected to the scraping block 6 and the first rack 15 respectively.

[0101] Specifically, by setting the second spring 37, elastic yielding is provided for the first rack 15 to prevent the first rack 15 from getting stuck.

[0102] Furthermore, the scraping plate 8 is an inclined plate, which is beneficial for scraping the waste slag at the top end of the well-type furnace body 1 and pushing it into the furnace, improving the slag removal effect.

[0103] Furthermore, the arc-shaped sealing gasket 13 is a metal sealing gasket, and an inert gas is filled inside it to prevent the arc-shaped sealing gasket 13 from being damaged by high temperature.

[0104] The working principle of the present invention: First, by starting the second motor 31, the L-shaped driving frame 32 drives the furnace cover 2 to rotate to directly above the well-type furnace body 1. Subsequently, the cylinder 29 is started, causing the telescopic rod of the cylinder 29 to move downward, causing the furnace cover 2 to move downward, so that the scraping plate 8 contacts the top end of the well-type furnace body 1. Under the extrusion action, the scraping block 6 drives the scraping belt 7 and the scraping plate 8 to move upward along the sliding groove 5.

[0105] After the scraping plate 8 contacts the top end of the well-type furnace body 1, by starting the first motor 4 and the transmission assembly, the rotating disk 3 and the scraping belt 7 rotate, causing the scraping plate 8 to rotate along the top end of the well-type furnace body 1, thereby scraping the waste slag attached to the top end of the well-type furnace body 1, keeping the top end of the well-type furnace body 1 flat, which is beneficial for making the furnace cover 2 fit tightly with the furnace opening and improving the sealing performance inside the furnace.

[0106] During the upward movement of the scraping block 6 along the chute 5, through the pushing component, the sealing block 9 is moved closer to and pressed against the inner wall of the top end of the well-type furnace body 1, thereby sealing the edge of the top end of the well-type furnace body 1 to prevent flue gas from entering the furnace cover 2 through the chute 5. At the same time, since there is a material receiving groove 10 at the bottom end of the sealing block 9, the waste residue scraped off by the scraping plate 8 can be collected, which helps to avoid the waste residue from falling into the furnace and increasing the problem of the waste residue content in the furnace.

[0107] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A well-type gas furnace sealing structure, characterized in that: include: A furnace cover (2), the furnace cover (2) is used to seal the pit-type furnace body (1), the inner wall of the furnace cover (2) is rotatably connected to a rotating disk (3), the top of the furnace cover (2) is fixedly connected to a first motor (4), the output shaft of the first motor (4) passes through the furnace cover (2) and is fixedly connected to the top of the rotating disk (3), and a slide groove (5) is provided in an annular array at the bottom of the rotating disk (3); A plurality of scraping blocks (6), wherein the plurality of scraping blocks (6) are slidably connected in the slide groove (5), a first elastic connecting member is connected between the scraping block (6) and the rotating disk (3), the scraping block (6) is in contact with the top of the pit furnace body (1), and the scraping block (6) moves upward along the slide groove (5); A scraping belt (7), the scraping belt (7) is rotatably connected to the bottom end of the scraping block (6), and a scraping plate (8) is fixedly connected to the surface array of the scraping belt (7); A transmission assembly, the transmission assembly is used to drive the scraper belt (7) to rotate so that the scraper plate (8) scrapes away the waste slag at the top port of the pit-type furnace body (1); A sealing block (9), wherein the sealing block (9) is slidably connected to the bottom end of the scraping block (6), and a material receiving groove (10) is provided at the top end of the sealing block (9) for collecting waste residues scraped by the scraping plate (8); A pushing assembly is used to push the sealing block (9) so as to move the sealing block (9) closer to and press against the inner wall of the top end of the pit-type furnace body (1) so as to seal the top edge of the pit-type furnace body (1).

2. A well-type gas furnace sealing structure according to claim 1, characterized in that: Also includes: A plurality of arc-shaped installation grooves (11), wherein the arc-shaped installation grooves (11) are arranged in an arc-shaped array at the bottom end of the rotating disk (3), and each of the arc-shaped installation grooves (11) is located between two slide grooves (5); An arc-shaped mounting seat (12), wherein the arc-shaped mounting seat (12) is slidably connected in the arc-shaped mounting groove (11), and an arc-shaped sealing gasket (13) is fixedly connected to the bottom of the arc-shaped mounting seat (12).

3. A well-type gas furnace sealing structure according to claim 2, characterized in that: Also includes: Two driving gears (14), the two driving gears (14) are symmetrically rotatably connected to the inner wall of the slide groove (5); Two first racks (15), the two first racks (15) are symmetrically slidably connected to the two sides of the scraper block (6), the first racks (15) are meshed with the driving gears (14) at corresponding positions, and a second elastic connecting member is connected between the first racks (15) and the scraper block (6); The arc-shaped mounting seat (12) has second racks (16) symmetrically fixedly connected to both ends thereof, and the second racks (16) are meshed with the driving gears (14) at corresponding positions.

4. A well-type gas furnace sealing structure according to claim 1, characterized in that: The transmission assembly comprises: Two transmission rollers (17), the two transmission rollers (17) are symmetrically rotatably connected to the inner wall of the bottom end of the scraper block (6), and the scraper belt (7) is arranged on the surface of the two transmission rollers (17); A one-way bearing (18), the one-way bearing (18) being arranged on the end surface of the rotating shaft of one of the driving rollers (17), and the one-way bearing (18) being rotatably connected to the outer side wall of the scraping block (6); A connecting rod mechanism, one end of which is rotatably connected to the rotating shaft of the transmission roller (17), and the other end of which is rotatably connected to a driving rod (21), wherein the driving rod (21) is slidably connected to the outer wall of the scraping block (6); A driving seat (22), wherein the driving seat (22) is slidably connected in the furnace cover (2), the bottom end of the driving seat (22) is rotatably connected to a rotating ring (23), the bottom end of the rotating ring (23) is fixedly connected to a connecting rod (24), the bottom end of the connecting rod (24) is fixedly connected to the top of the scraper block (6), the bottom end of the driving seat (22) is provided with an annular wave groove (25), and the top end of the driving rod (21) is slidably connected in the annular wave groove (25).

5. A well-type gas furnace sealing structure according to claim 1, characterized in that: The pushing component comprises: Two drive plates (26), the two drive plates (26) are symmetrically distributed on both sides of the sealing block (9), the top of the drive plate (26) is fixedly connected to the bottom of the rotating disk (3), the side wall of the drive plate (26) is provided with a drive groove (27), the drive groove (27) has an oblique groove and a straight groove, and the two sides of the sealing block (9) are symmetrically fixedly connected with connecting pins, and the connecting pins are slidably connected in the drive groove (27).

6. A well-type gas furnace sealing structure according to claim 1, characterized in that: Also includes: An L-shaped mounting frame (28), the L-shaped mounting frame (28) being fixedly connected to the outer side wall of the pit-type furnace body (1), a cylinder (29) being fixedly connected to the top of the L-shaped mounting frame (28), a mounting plate (30) being fixedly connected to the top of the telescopic rod of the cylinder (29), and the mounting plate (30) being slidably connected to the side wall of the L-shaped mounting frame (28); A second motor (31), the second motor (31) is fixedly connected to the mounting plate (30), the top end of the output shaft of the second motor (31) is fixedly connected to an L-shaped drive frame (32), and the top end of the L-shaped drive frame (32) is fixedly connected to the top end of the furnace cover (2).

7. A well-type gas furnace sealing structure according to claim 1, characterized in that: The first elastic connecting member comprises: Two L-shaped brackets (33), the two L-shaped brackets (33) are symmetrically fixedly connected to the top of the rotating disk (3), the ends of the L-shaped brackets (33) are slidably connected to a first sliding rod (34), and the bottom end of the first sliding rod (34) is fixedly connected to the top of the scraping block (6); A first spring (35), wherein two ends of the first spring (35) are respectively fixedly connected to the L-shaped bracket (33) and the scraping block (6).

8. A well-type gas furnace sealing structure according to claim 3, characterized in that: The second elastic connecting member comprises: A second sliding rod (36), the second sliding rod (36) is fixedly connected to the outer wall of the scraping block (6), and the first rack (15) is slidably connected to the surface of the second sliding rod (36); A second spring (37), two ends of which are respectively fixedly connected to the scraper block (6) and the first rack (15).

9. A well-type gas furnace sealing structure according to claim 1, characterized in that: The scraping plate (8) is an inclined plate.

10. A well-type gas furnace sealing structure according to claim 2, characterized in that: The arc-shaped sealing gasket (13) is a metal sealing gasket, the interior of which is filled with inert gas.

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