A roasting furnace that is easy to clean

Abstract

The present application relates to a roasting furnace that is easy to clean, and belongs to the technical field of coated sand processing. It includes a furnace body, a first cleaning component and a second cleaning component. A furnace mouth is arranged on the first side of the furnace body, a furnace cavity is arranged in the furnace body, and the bottom of the furnace cavity includes a first furnace bottom and a second furnace bottom. One end of the first furnace bottom is connected to the second side of the furnace body, and the second side is arranged opposite to the first side. The other end of the first furnace bottom cooperates with one end of the second furnace bottom, and the other end of the second furnace bottom is connected to the first side. The second furnace bottom is lower than the first furnace bottom; the first cleaning component is arranged on the first furnace bottom, and is used to clean the slag at the bottom of the first furnace; the second cleaning component includes a drawer, the drawer is slidably connected to the second furnace bottom, the drawer moves in a first direction toward or away from the first furnace bottom horizontally, the width of the drawer is equal to the width of the furnace cavity, and the drawer passes through the furnace mouth in the first direction. The present application has the effect of improving the cleaning effect of the roasting furnace and improving the cleaning efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of coated sand processing, and in particular to a roasting furnace which is easy to clean. Background Art

[0002] Coated sand refers to the molding sand or core sand whose surface is covered with a layer of solid resin film before molding. There are generally two processes for coating sand in the processing process: cold method and hot method. In the hot coating process, the sand needs to be preheated to a certain temperature, and then resin is added to melt it. The resin is stirred to coat the surface of the sand, and then curing agent and lubricant are added. After cooling, crushing and screening, coated sand is obtained.

[0003] At present, the preheating step in the thermal processing of coated sand is generally achieved through a roasting furnace, where the sand to be processed is put into the cavity of the roasting furnace for heating, thereby reducing the sintering temperature. After the coated sand is processed in the roasting furnace, sand, impurities and other slag will remain in the roasting furnace. The roasting furnace in the related art usually moves the slag directly from the inside of the furnace cavity to the furnace mouth to clean the slag.

[0004] However, since the inner side of the furnace chamber is far away from the furnace mouth, when there is a lot of slag, it will impose a heavy burden on the cleaning structure, reducing the slag cleaning effect; and, after the slag is discharged from the furnace chamber, it is difficult to transport it, affecting the cleaning efficiency.

[0005] With respect to the above-mentioned related technologies, the inventors believe that there are defects in that the cleaning effect of the roasting furnace for coating sand processing is poor and the slag is not easy to transport. Utility Model Content

[0006] In order to improve the cleaning effect of a roasting furnace and increase the cleaning efficiency, the present application provides a roasting furnace that is easy to clean.

[0007] The roasting furnace provided in this application is easy to clean, and adopts the following technical solution:

[0008] A roasting furnace that is easy to clean, comprising: a furnace body, a furnace opening is provided on a first side of the furnace body, the furnace opening is provided with a cover body, a furnace cavity is provided in the furnace body, the bottom of the furnace cavity comprises a first furnace bottom and a second furnace bottom, one end of the first furnace bottom is connected to the second side of the furnace body, the second side is arranged opposite to the first side, the other end of the first furnace bottom cooperates with one end of the second furnace bottom, the other end of the second furnace bottom is connected to the first side, and the height of the second furnace bottom is lower than the height of the first furnace bottom; a first cleaning component is provided on the first furnace bottom, and is used to clean the slag at the first furnace bottom; a second cleaning component comprises a drawer, the drawer is slidably connected to the second furnace bottom, the drawer moves in a first direction toward or away from the first furnace bottom in a horizontal direction, the width of the drawer is equal to the width of the furnace cavity, and the drawer passes through the furnace opening along the first direction.

[0009] By adopting the above technical scheme, the furnace body provides a carrier for heating the coated sand. After processing, slag is left at the bottom of the furnace cavity. The bottom of the first furnace is arranged away from the furnace mouth. The bottom of the first furnace is cleaned by the first cleaning component to move the slag toward the furnace mouth. Since the bottom of the second furnace is lower than the bottom of the first furnace, the slag at the bottom of the first furnace can be pushed to the bottom of the second furnace. A drawer is provided on the bottom of the second furnace to push the slag at the bottom of the first furnace onto the drawer. The width of the drawer is equal to the width of the furnace cavity. By pulling the drawer, the drawer passes through the furnace mouth and the slag is smoothly moved out of the furnace cavity. The slag can be conveniently transported by moving the drawer, thereby improving the cleaning efficiency. The first cleaning component is only used to clean the bottom of the first furnace, which can reduce excessive accumulation of slag on the first cleaning component during cleaning, thereby optimizing the cleaning effect.

[0010] Optionally, the length of the drawer along the first direction is greater than the length of the second furnace bottom along the first direction, and one end of the drawer away from the pulling member extends below the first furnace bottom.

[0011] By adopting the above technical solution, the problem of slag on the bottom of the first furnace falling into the vertical gap between the drawer and the bottom of the first furnace when being pushed to the drawer can be alleviated, thereby optimizing the cleaning effect.

[0012] Optionally, the second cleaning assembly also includes a pulling member, a supporting member and a first leg, the pulling member is connected to one end of the pull-out member close to the furnace mouth, the supporting member is arranged below the pull-out member, one end of the supporting member is connected to the pulling member, and the other end of the supporting member extends along the first direction toward the bottom of the first furnace, and along the vertical direction, the bottom of the second furnace is arranged between the pull-out member and the supporting member, and the first leg is arranged on the lower side of the supporting member.

[0013] By adopting the above technical solution, the pulling piece provides a structure for the pull-out piece that is easy to pull, thereby avoiding the problem that the pull-out piece is difficult to pull out after being inserted into the bottom of the second furnace; the support piece and the first leg provide support for the pull-out piece, so that the second cleaning component can be reliably supported when it is moved to the outside of the furnace body, thereby facilitating the transfer of slag and improving the cleaning efficiency.

[0014] Optionally, the lower side of one end of the drawer away from the pulling member is rotatably connected to a second leg, and the length of the second leg is equal to the vertical distance between the drawer and the supporting member.

[0015] By adopting the above technical solution, the drawer can be reliably supported on the support member through the second leg. Since one end of the second leg is rotatably connected, the second leg can be rotated to a horizontal position when the drawer is extended into the furnace cavity, thereby preventing the second leg from getting stuck with the second furnace bottom and preventing the drawer from being extended into the furnace cavity.

[0016] Optionally, a knocking assembly is provided on the outer wall of the furnace body, and the knocking assembly includes a rotating shaft, a torsion spring and a knocking rod. The rotating shaft is connected to the side wall of the furnace body, and the torsion spring is sleeved on the rotating shaft. One end of the knocking rod is rotatably connected to the rotating shaft, and both ends of the torsion spring respectively abut the furnace body and the knocking rod, so that the other end of the knocking rod fits against the side wall of the furnace body.

[0017] By adopting the above technical solution, when cleaning the slag in the furnace chamber, the free end of the knocking rod can be moved away from the side wall of the furnace body and then released, so that the knocking rod rotates around the rotating axis under the resetting action of the torsion spring, thereby achieving resetting, that is, the free end of the knocking rod knocks on the furnace body, and the slag on the inner wall of the furnace chamber is shaken off, which helps to optimize the cleaning effect.

[0018] Optionally, the first cleaning assembly includes a guide rod, a driving member and a first cleaning plate, the two ends of the guide rod are respectively connected to the first side surface and the second side surface of the furnace body, the guide rod extends along the upper surface direction of the bottom of the first furnace, the second direction is located in the same horizontal plane as the first direction and is perpendicular to the first direction, the guide rods are penetrated at both ends of the first cleaning plate along the second direction, the length of the first cleaning plate along the second direction is equal to the width of the bottom of the first furnace along the second direction, the lower end of the first cleaning plate abuts against the bottom of the first furnace, the driving member is transmission-connected to the first cleaning plate, and the driving member drives the first cleaning plate to reciprocate along the extension direction of the guide rod.

[0019] By adopting the above technical solution, the first cleaning plate can move along the guide rod driven by the driving member, thereby achieving reliable pushing of the slag on the bottom of the first furnace and reducing slag residue.

[0020] Optionally, the driving member includes a pedal portion, a rack portion, a gear portion, a first bevel gear portion, a second bevel gear portion, a screw portion and an elastic portion, the screw portion being screwed to the first cleaning plate, one end of the screw portion being rotatably connected to the first side surface, the other end of the screw portion passing through the second side surface and connected to the first bevel gear portion, the screw portion extending along the length direction of the guide rod, the pedal portion being arranged on one side of the furnace body, the rack portion being connected to the bottom of the pedal portion, the rack portion extending in a vertical direction, the rack portion being transmission-connected to the gear portion, the gear portion being connected to the second bevel gear portion via a connecting shaft, the second bevel gear portion being transmission-connected to the first bevel gear, the elastic portion being arranged on one side of the rack portion, the elastic portion being connected to the pedal portion, and the elastic portion being used to drive the pedal portion to move upward.

[0021] By adopting the above technical solution, the difficulty of cleaning can be reduced. By stepping on the pedal, the rack part is driven to move downward, and the screw part is driven to rotate through the transmission of the gear part, the second bevel gear part and the first bevel gear part, so that the first cleaning plate can move along the axial direction of the screw part. The elastic part is used to move the pedal part upward, so that the first cleaning plate is reset and the first cleaning plate can achieve reciprocating movement.

[0022] Optionally, a diameter of the first bevel gear portion is smaller than a diameter of the second bevel gear portion.

[0023] By adopting the above technical solution, the cleaning operation of the first cleaning plate on the bottom of the first furnace can be achieved by moving the pedal part downward once, thereby simplifying the cleaning steps and reducing the difficulty of cleaning the slag in the furnace chamber.

[0024] Optionally, the first cleaning assembly also includes a second cleaning plate, the guide rods are penetrated at both ends of the length of the second cleaning plate along the second direction, the lower end of the second cleaning plate is spaced apart from the bottom of the first furnace, the second cleaning plate is arranged on the side of the first cleaning plate close to the furnace mouth, a plurality of protrusions are provided on the lower side of the second cleaning plate, and the plurality of protrusions are spaced apart on the second cleaning plate.

[0025] By adopting the above technical scheme, the slag can be pre-cleaned through the protrusion on the lower side of the second cleaning plate, thereby alleviating the problem of excessive slag affecting the cleaning effect; and the slag can be moved through the second cleaning plate to reduce the pushing resistance of the first cleaning plate. Since the second cleaning plate only pushes the slag through the protrusion, it can reduce its own pushing resistance and improve the reliability of slag cleaning.

[0026] Optionally, the first cleaning assembly further includes a limiting member, the limiting member is passed through the guide rod, and two ends of the limiting member respectively abut against the first cleaning plate and the second cleaning plate.

[0027] By adopting the above technical solution, the second cleaning plate and the first cleaning plate are always kept at a distance, so that the pre-cleaning function of the second cleaning plate can be reliably achieved.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. The furnace body provides a carrier for heating the coated sand. After processing, slag is left at the bottom of the furnace cavity. The bottom of the first furnace is arranged away from the furnace mouth. The bottom of the first furnace is cleaned by the first cleaning component to move the slag toward the furnace mouth. Since the bottom of the second furnace is lower than the bottom of the first furnace, the slag at the bottom of the first furnace can be pushed to the bottom of the second furnace. A drawer is provided on the bottom of the second furnace to push the slag at the bottom of the first furnace onto the drawer. The width of the drawer is equal to the width of the furnace cavity. The drawer is pulled to pass through the furnace mouth and the slag is smoothly moved out of the furnace cavity. The slag can be conveniently transported by moving the drawer, thereby improving the cleaning efficiency. The first cleaning component is only used to clean the bottom of the first furnace, which can reduce the excessive accumulation of slag on the first cleaning component during cleaning, thereby optimizing the cleaning effect.

[0030] 2. The pulling piece provides a structure for the drawer to be easily pulled, thereby avoiding the problem that the drawer is inserted into the bottom of the second furnace and is difficult to pull out; the supporting piece and the first leg provide support for the drawer, so that the second cleaning component can be reliably supported when it is moved to the outside of the furnace body, thereby facilitating the transfer of slag and improving the cleaning efficiency;

[0031] 3. When cleaning the slag in the furnace chamber, the free end of the knocking rod can be moved away from the side wall of the furnace body, and then the knocking rod can be released so that the knocking rod rotates around the rotating axis under the resetting action of the torsion spring, thereby achieving resetting, that is, the free end of the knocking rod knocks on the furnace body, and the slag on the inner wall of the furnace chamber is shaken off, which helps to optimize the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is an overall schematic diagram of a roasting furnace that is easy to clean according to an embodiment of the present application.

[0033] Figure 2 It is a top view of the roasting furnace which is easy to clean according to an embodiment of the present application.

[0034] Figure 3 yes Figure 2 Cross-section view at AA in the middle.

[0035] Figure 4 It is a schematic diagram of the first cleaning component and the second cleaning component of an embodiment of the present application.

[0036] Figure 5 It is a schematic diagram of the cooperation between the second cleaning component and the first furnace bottom of an embodiment of the present application.

[0037] Figure 6 It is a schematic diagram of the striking component of an embodiment of the present application.

[0038] Description of reference numerals:

[0039] 1. furnace body; 11. furnace mouth; 12. cover body; 13. furnace cavity; 14. first furnace bottom; 141. through hole; 15. second furnace bottom;

[0040] 2. first cleaning assembly; 21. guide rod; 22. driving member; 221. pedal portion; 222. rack portion; 223. gear portion; 224. first bevel gear portion; 225. second bevel gear portion; 226. lead screw portion; 227. connecting shaft; 228. elastic portion; 23. first cleaning plate; 24. second cleaning plate; 241. protruding portion; 25. stopper;

[0041] 3. Second cleaning assembly; 31. Pulling member; 32. Pulling member; 33. Support member; 34. First leg; 35. Second leg;

[0042] 4. striking assembly; 41. rotating shaft; 42. torsion spring; 43. striking rod. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-Figure 6 The present application is further described in detail. In this embodiment, if not clearly specified, "connected", "connected" and "fixed" are understood in a broad sense, including fixed connection, detachable connection, connection to form an integral structure, mechanical connection, electrical connection, direct connection, indirect connection through an intermediary, internal connection and interaction between two elements, etc., which can be understood according to the specific circumstances. Unless otherwise specified, the directional words used in this application, such as "inside" and "outside", refer to the contours of the corresponding parts themselves, and the directional words used, such as the first direction, refer to the direction of X in the figure; the second direction is located in the same plane as the first direction and is perpendicular to each other, that is, the direction of Y.

[0044] like Figure 1 As shown, an embodiment of the present application discloses a roasting furnace (hereinafter referred to as the "roasting furnace") which is easy to clean. The roasting furnace includes a furnace body 1, a first cleaning component 2 and a second cleaning component 3. The furnace body 1 is used to heat sand during the processing of coated sand or other types of sand. The first cleaning component 2 and the second cleaning component 3 are both used to clean impurities and slag such as sand remaining in the furnace body 1 after use, so as to ensure the reliability of the furnace body 1 and reduce the possibility of subsequent sand particles being mixed with impurities in the furnace body 1.

[0045] A furnace opening 11 is provided on the first side of the furnace body 1, and a furnace cavity 13 is provided in the furnace body 1. The furnace opening 11 is used to put sand grains and remove the heated sand grains so that the sand grains are heated in the furnace cavity 13. The furnace opening 11 is provided with a cover 12 to keep the furnace cavity 13 relatively closed when heating in the furnace body 1, reduce heat loss, and improve heating efficiency. The cover 12 is slidably connected to the furnace opening 11 so that it can be opened and closed conveniently. The bottom of the furnace cavity 13 includes a first furnace bottom 14 and a second furnace bottom 15. One end of the first furnace bottom 14 is connected to the second side of the furnace body 1, and the second side is arranged opposite to the first side. The other end of the first furnace bottom 14 cooperates with one end of the second furnace bottom 15, and the other end of the second furnace bottom 15 is connected to the first side, that is, the first furnace bottom 14 and the second furnace bottom 15 together form the bearing bottom of the furnace cavity 13 for supporting sand grains. The first furnace bottom 14 is arranged far away from the furnace opening 11 and is arranged deep in the furnace cavity 13; the second furnace bottom 15 is arranged close to the furnace opening 11, so that the first furnace bottom 14 and the second furnace bottom 15 together constitute the bottom of the furnace cavity 13 to carry sand particles.

[0046] like Figure 1-Figure 3 As shown, the height of the second furnace bottom 15 is lower than that of the first furnace bottom 14. The first cleaning assembly 2 is arranged on the first furnace bottom 14, and is used to clean the slag of the first furnace bottom 14, so that the slag moves toward the furnace port 11, so that the slag on the first furnace bottom 14 can fall onto the second furnace bottom 15 under the pushing action. The height difference between the first furnace bottom 14 and the second furnace bottom 15 helps to completely move the slag on the first furnace bottom 14 to the second furnace bottom 15. Since the first cleaning assembly 2 is only used to clean the first furnace bottom 14, the cleaning path of the first cleaning assembly 2 is shortened, and the problem of excessive accumulation of slag on the first cleaning assembly 2 during cleaning, which causes the slag to pass over the first cleaning assembly 2 and affect the cleaning effect, can be reduced.

[0047] The second cleaning assembly 3 includes a drawer 31, which is slidably connected to the second furnace bottom 15 and is used to carry the slag after use of the furnace body 1 and the slag pushed from the first furnace bottom 14 to the second furnace bottom 15. The drawer 31 can move horizontally toward or away from the first furnace bottom 14 along the first direction, and the width of the drawer 31 is equal to the width of the furnace chamber 13. The drawer 31 passes through the furnace opening 11 along the first direction to smoothly move the slag out of the furnace chamber 13. After the first cleaning assembly 2 pushes the slag onto the drawer 31, the slag is all gathered on the drawer 31. By moving the drawer 31, the slag can be conveniently transported, thereby improving the cleaning efficiency of the furnace body 1.

[0048] like Figure 3 and Figure 4As shown, optionally, the first cleaning assembly 2 includes a guide rod 21, a driving member 22 and a first cleaning plate 23. The two ends of the guide rod 21 are respectively connected to the first side surface and the second side surface of the furnace body 1, and the first cleaning plate 23 is slidably connected to the guide rod 21, and the guide rod 21 extends along the upper surface direction of the first furnace bottom 14, so that the first cleaning plate 23 moves along the upper surface direction of the first furnace bottom 14. In this embodiment, the first furnace bottom 14 is horizontally arranged, and the guide rod 21 extends along the first direction; in other embodiments, the first furnace bottom 14 can be inclined, so that the slag on the first furnace bottom 14 can slide along the inclined surface toward the furnace mouth 11, optimize the cleaning effect, and improve the cleaning efficiency.

[0049] The second direction is located in the same horizontal plane as the first direction and is perpendicular to the first direction. Both ends of the first cleaning plate 23 along the second direction are provided with guide rods 21, so that both ends of the first cleaning plate 23 can reliably move along the first direction. The first cleaning plate 23 has a certain thickness along the first direction. Two guide rods 21 are respectively provided at both ends of the first cleaning plate 23 to prevent the lower side of the first cleaning plate 23 from deflecting, so that the lower side of the first cleaning plate 23 always abuts against the upper surface of the first furnace bottom 14, thereby ensuring the cleaning effect of the slag. The length of the first cleaning plate 23 along the second direction is equal to the width of the first furnace bottom 14 along the second direction, so that the furnace chamber 13 can be cleaned more comprehensively, the cleaning range can be increased, and the slag residue can be reduced. The driving member 22 is connected to the first cleaning plate 23 in a transmission manner to drive the first cleaning plate 23 to move back and forth along the extension direction of the guide rod 21.

[0050] like Figure 3 and Figure 4 As shown, optionally, the driving member 22 includes a pedal portion 221, a rack portion 222, a gear portion 223, a first bevel gear portion 224, a second bevel gear portion 225, a screw portion 226 and an elastic portion 228. One end of the screw portion 226 is rotatably connected to the first side surface, and the other end of the screw portion 226 passes through the second side surface to connect to the first bevel gear portion 224, and the screw portion 226 extends along the length direction of the guide rod 21. The screw portion 226 is screwed to the first cleaning plate 23, and the first cleaning plate 23 is driven to move linearly through the rotation of the screw portion 226, so as to push and clean the slag on the first furnace bottom 14.

[0051] like Figure 3 and Figure 4As shown, the pedal part 221 is arranged on one side of the furnace body 1, and the rack part 222 is connected to the bottom of the pedal part 221, and the rack part 222 extends in the vertical direction. The rack part 222 is connected to the gear part 223 by transmission, and the gear part 223 is connected to the second bevel gear part 225 by the connecting shaft 227, and the second bevel gear part 225 is connected to the first bevel gear part 224 by transmission, so that the screw part 226 is driven to rotate by pressing the pedal part 221. Since the pedal part 221 requires downward pressure, the screw part 226 can be driven to rotate by pressing down, such as stepping, which can reduce the need for manual rotation of the screw part 226, reduce the difficulty of cleaning, reduce the workload of operators, and also reduce the addition of structures such as motors and energy consumption. It can be understood that the drive member 22 includes necessary supporting structures. The elastic portion 228 is disposed on one side of the rack portion 222, one end of the elastic portion 228 is connected to the pedal portion 221, and the other end of the elastic portion 228 can be connected to the ground or a supporting structure, so that the elastic portion 228 can drive the pedal portion 221 to move upward and reset after the pedal portion 221 is pressed down.

[0052] Optionally, the diameter of the first bevel gear portion 224 is smaller than the diameter of the second bevel gear portion 225, so that the moving distance of the first cleaning plate 23 can be equal to the length of the first furnace bottom 14 along the first direction by one downward movement of the pedal portion 221, thereby achieving the cleaning operation on the first furnace bottom 14, simplifying the cleaning steps, and reducing the difficulty of cleaning the slag in the furnace chamber 13. The modulus, diameter and other parameters of the first bevel gear portion 224 and the second bevel gear portion 225 are set according to actual conditions to achieve transmission and cleaning of the first furnace bottom 14.

[0053] like Figure 3 and Figure 4 As shown, optionally, the first cleaning assembly 2 also includes a second cleaning plate 24. The second cleaning plate 24 is provided with guide rods 21 at both ends of the length along the second direction, so that the second cleaning plate 24 moves along the first direction. The lower end of the second cleaning plate 24 is spaced apart from the first furnace bottom 14, and a plurality of protrusions 241 are provided on the lower side of the second cleaning plate 24, and a plurality of protrusions 241 are spaced apart on the second cleaning plate 24, and the lower side of the protrusions 241 abuts against the upper surface of the first furnace bottom 14, so that the slag can be pre-cleaned by the protrusions 241, and the problem of too much slag affecting the cleaning effect can be alleviated. The second cleaning plate 24 is arranged on one side of the first cleaning plate 23 close to the furnace mouth 11, and the slag is moved by the second cleaning plate 24, and a part of the slag is first pushed onto the drawer 31, so as to reduce the pushing resistance of the first cleaning plate 23 during cleaning. Since the second cleaning plate 24 only pushes the slag through the protrusions 241, it can reduce the pushing resistance to itself and improve the reliability of the slag cleaning. The second cleaning plate 24 may be screwed to the lead screw portion 226; or a relief portion may be provided so that the lead screw portion 226 passes through the relief portion.

[0054] Optionally, the first cleaning assembly 2 further includes a stopper 25, which may be a hollow tubular member. The stopper 25 is disposed on the guide rod 21, and the two ends of the stopper 25 abut against the first cleaning plate 23 and the second cleaning plate 24, respectively, so that the second cleaning plate 24 and the first cleaning plate 23 are always spaced apart, thereby enabling the pre-cleaning function of the second cleaning plate 24 to be reliably achieved. Four stoppers 25 may be provided, which are respectively sleeved on the four guide rods 21.

[0055] like Figure 3 and Figure 4 As shown, optionally, the length of the pull-out piece 31 along the first direction is greater than the length of the second furnace bottom 15 along the first direction, so that the end of the pull-out piece 31 away from the furnace mouth 11 extends under the first furnace bottom 14, thereby alleviating the problem of slag on the first furnace bottom 14 falling into the vertical gap between the pull-out piece 31 and the first furnace bottom 14 when being pushed to the pull-out piece 31, thereby optimizing the cleaning effect.

[0056] like Figure 3-Figure 5 As shown, a through hole 141 is provided on the bottom 14 of the first furnace. The through hole 141 cooperates with the first cleaning plate 23, and the cross-sectional area of ​​the first cleaning plate 23 is larger than the area of ​​the through hole 141. When cleaning is not performed, the first cleaning plate 23 is located above the through hole 141, so that the through hole 141 can be blocked to avoid heat dissipation during heating and affect the heating effect. During cleaning, since the first cleaning plate 23 is reciprocating, when the first cleaning plate 23 moves toward the furnace mouth 11, the slag on the bottom 14 of the first furnace is pushed onto the drawer 31; when the first cleaning plate 23 is reset, since the bottom is still in contact with the bottom 14 of the first furnace, a small amount of residual slag may be pushed away from the furnace mouth 11. At this time, the through hole 141 can be used to discharge the slag from the furnace body 1. A collection box can be provided below the through hole 141 to collect the slag pushed out during the reset process of the first cleaning plate 23.

[0057] like Figure 3-Figure 5As shown, optionally, the second cleaning assembly 3 also includes a pulling member 32, a supporting member 33 and a first leg 34. The pulling member 32 is a vertical plate-shaped member, the pulling member 32 connects one end of the drawer 31 close to the furnace mouth 11, one end of the supporting member 33 connects the pulling member 32, and the other end of the supporting member 33 extends in a first direction toward the direction close to the first furnace bottom 14, and the supporting member 33 is arranged below the drawer 31. In the vertical direction, the second furnace bottom 15 is arranged between the drawer 31 and the supporting member 33, and the first leg 34 is arranged on the lower side of the supporting member 33. The pulling member 32 provides a structure that is easy to pull for the drawer 31, avoiding the problem that the drawer 31 is not easy to pull out after being inserted into the second furnace bottom 15. A handle can be provided on one side of the pulling member 32 away from the drawer 31, so as to facilitate pulling, and can be pulled manually or by mechanical mechanism. The support member 33 and the first leg 34 provide support for the drawer 31, so that when the second cleaning assembly 3 is moved to the outside of the furnace body 1, it can be reliably supported and kept stable, thereby facilitating the transfer of slag and improving the cleaning efficiency. The support member 33 can be a plate-shaped member; the first leg 34 can be a universal wheel, and multiple universal wheels can be provided and distributed below the support member 33. The second furnace bottom 15 can be provided with a filtering hole so that the slag accidentally dropped on the second furnace bottom 15 can be discharged to the support member 33.

[0058] Optionally, the lower side of one end of the drawer 31 away from the pulling member 32 is rotatably connected to the second leg 35, and the length of the second leg 35 is equal to the vertical distance between the drawer 31 and the support member 33. When the second cleaning assembly 3 is separated from the furnace body 1, the second leg 35 is rotated to a vertical state, so that the drawer 31 can be reliably supported on the support member 33. Since one end of the second leg 35 is rotatably connected, when the drawer 31 is extended into the furnace cavity 13, the second leg 35 can be pushed to rotate to a horizontal position by the abutment of the furnace body 1, so as to avoid the drawer 31 being unable to extend into the furnace cavity 13 due to the second leg 35 being stuck with the second furnace bottom 15. An anti-slip portion can be provided at the end of the second leg 35 to ensure that the second leg 35 is reliably supported on the support member 33.

[0059] like Figure 2 and Figure 6As shown, optionally, the outer wall of the furnace body 1 is provided with a knocking assembly 4, and the knocking assembly 4 includes a rotating shaft 41, a torsion spring 42 and a knocking rod 43. The rotating shaft 41 is connected to the side wall of the furnace body 1, the torsion spring 42 is sleeved on the rotating shaft 41, the connecting end of the knocking rod 43 is rotatably connected to the rotating shaft 41, the torsion spring 42 is arranged between the connecting end of the rotating shaft 41 and the knocking rod 43, and the two ends of the torsion spring 42 respectively abut the furnace body 1 and the knocking rod 43, so that the other end of the knocking rod 43 can fit the side wall of the furnace body 1. In this embodiment, one end of the torsion spring 42 is connected to the furnace body 1, and the other end of the torsion spring 42 is connected to the knocking rod 43, so that the knocking rod 43 can maintain a close fit with the furnace body 1 under the action of the torsion spring 42. When cleaning the slag in the furnace chamber 13, the free end of the knocking rod 43 is lifted to leave the side wall of the furnace body 1, and then the free end of the knocking rod 43 is released, so that the knocking rod 43 rotates around the rotating shaft 41 under the reset action of the torsion spring 42, thereby achieving reset, that is, the free end of the knocking rod 43 knocks the furnace body 1 to shake off the slag on the inner wall of the furnace chamber 13. After the knocking rod 43 shakes off the slag on the side wall, the first cleaning component 2 and the second cleaning component 3 are used to clean the slag at the bottom of the furnace chamber 13, which helps to optimize the cleaning effect and improve the cleaning efficiency. Multiple knocking components 4 can be provided, and the knocking components 4 can be provided on the side of the furnace body 1 close to the driving member 22, so as to press down the pedal part 221 after knocking, reduce the need for the operator to move, and reduce labor intensity.

[0060] The implementation principle of a roasting furnace that is easy to clean in an embodiment of the present application is as follows: after the furnace body 1 heats the sand and cools it, the furnace body 1 is knocked by lifting the free end of the knocking rod 43 to shake off the impurities on the side wall of the furnace body 1; then the pedal part 221 is pressed down to drive the screw part 226 to rotate, so that the first cleaning component 2 moves; the second cleaning plate 24 first pre-cleans the slag on the bottom 14 of the first furnace, and pushes part of the slag onto the drawer 31. At the same time, the first cleaning plate 23 behind the second cleaning plate 24 further cleans the slag on the bottom 14 of the first furnace, and moves all the slag onto the drawer 31; the cover body 12 can be reopened at this time, and the pulling piece 32 of the second cleaning component 3 is pulled to smoothly move the slag on the drawer 31 out of the furnace body 1 to optimize the cleaning effect; the universal wheel at the bottom of the support member 33 can conveniently realize the movement of the slag and improve the cleaning efficiency.

[0061] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A roasting furnace that is easy to clean, characterized in that: include: A furnace body (1), wherein a furnace opening (11) is provided on a first side of the furnace body (1), and a cover body (12) is provided on the furnace opening (11); a furnace cavity (13) is provided in the furnace body (1); the bottom of the furnace cavity (13) comprises a first furnace bottom (14) and a second furnace bottom (15); one end of the first furnace bottom (14) is connected to the second side of the furnace body (1), and the second side is arranged opposite to the first side; the other end of the first furnace bottom (14) cooperates with one end of the second furnace bottom (15), and the other end of the second furnace bottom (15) is connected to the first side; and the height of the second furnace bottom (15) is lower than the height of the first furnace bottom (14); A first cleaning component (2) is disposed on the first furnace bottom (14) and is used to clean slag from the first furnace bottom (14); The second cleaning assembly (3) comprises a drawer (31), the drawer (31) being slidably connected to the second furnace bottom (15), the drawer (31) moving horizontally along a first direction toward or away from the first furnace bottom (14), the width of the drawer (31) being equal to the width of the furnace cavity (13), and the drawer (31) passing through the furnace opening (11) along the first direction.

2. The easy-to-clean roasting furnace according to claim 1, characterized in that: The second cleaning assembly (3) further comprises a pulling member (32), a supporting member (33) and a first supporting leg (34); the pulling member (32) is connected to one end of the drawer (31) close to the furnace opening (11); the supporting member (33) is arranged below the drawer (31); one end of the supporting member (33) is connected to the pulling member (32); the other end of the supporting member (33) extends along the first direction toward the first furnace bottom (14); in the vertical direction, the second furnace bottom (15) is arranged between the drawer (31) and the supporting member (33); and the first supporting leg (34) is arranged on the lower side of the supporting member (33).

3. The easy-to-clean roasting furnace according to claim 2, characterized in that: The length of the drawer (31) along the first direction is greater than the length of the second furnace bottom (15) along the first direction, and one end of the drawer (31) away from the pulling member (32) extends below the first furnace bottom (14).

4. The easy-to-clean roasting furnace according to claim 2, characterized in that: The lower side of one end of the drawer (31) away from the pulling member (32) is rotatably connected to a second leg (35), and the length of the second leg (35) is equal to the vertical distance between the drawer (31) and the support member (33).

5. The easy-to-clean roasting furnace according to claim 1, characterized in that: The outer wall of the furnace body (1) is provided with a knocking assembly (4), the knocking assembly (4) comprising a rotating shaft (41), a torsion spring (42) and a knocking rod (43), the rotating shaft (41) being connected to the side wall of the furnace body (1), the torsion spring (42) being sleeved on the rotating shaft (41), one end of the knocking rod (43) being rotatably connected to the rotating shaft (41), and two ends of the torsion spring (42) respectively abutting against the furnace body (1) and the knocking rod (43), so that the other end of the knocking rod (43) is in contact with the side wall of the furnace body (1).

6. The easy-to-clean roasting furnace according to claim 1, characterized in that: The first cleaning assembly (2) comprises a guide rod (21), a driving member (22) and a first cleaning plate (23); two ends of the guide rod (21) are respectively connected to a first side surface and a second side surface of the furnace body (1); the guide rod (21) extends along the upper surface direction of the first furnace bottom (14); the second direction is located in the same horizontal plane as the first direction and is perpendicular to the first direction; the guide rod (21) is penetrated at both ends of the first cleaning plate (23) along the second direction; the length of the first cleaning plate (23) along the second direction is equal to the width of the first furnace bottom (14) along the second direction; the lower end of the first cleaning plate (23) abuts against the first furnace bottom (14); the driving member (22) is transmission-connected to the first cleaning plate (23); the driving member (22) drives the first cleaning plate (23) to reciprocate along the extension direction of the guide rod (21).

7. The easy-to-clean roasting furnace according to claim 6, characterized in that: The driving member (22) comprises a pedal portion (221), a rack portion (222), a gear portion (223), a first bevel gear portion (224), a second bevel gear portion (225), a screw portion (226) and an elastic portion (228); the screw portion (226) is screwed to the first cleaning plate (23); one end of the screw portion (226) is rotatably connected to the first side surface; the other end of the screw portion (226) passes through the second side surface and is connected to the first bevel gear portion (224); the screw portion (226) extends along the length direction of the guide rod (21); and the pedal portion (221) is arranged on one side of the furnace body (1). The rack portion (222) is connected to the bottom of the pedal portion (221); the rack portion (222) extends in a vertical direction; the rack portion (222) is transmission-connected to the gear portion (223); the gear portion (223) is connected to the second bevel gear portion (225) via a connecting shaft (227); the second bevel gear portion (225) is transmission-connected to the first bevel gear portion (224); the elastic portion (228) is provided on one side of the rack portion (222); the elastic portion (228) is connected to the pedal portion (221); and the elastic portion (228) is used to drive the pedal portion (221) to move upward.

8. The easy-to-clean roasting furnace according to claim 7, characterized in that: The diameter of the first bevel gear portion (224) is smaller than the diameter of the second bevel gear portion (225).

9. The easy-to-clean roasting furnace according to claim 6, characterized in that: The first cleaning assembly (2) further comprises a second cleaning plate (24), the guide rods (21) being provided at both ends of the length of the second cleaning plate (24) along the second direction, the lower end of the second cleaning plate (24) being spaced apart from the first furnace bottom (14), the second cleaning plate (24) being arranged on a side of the first cleaning plate (23) close to the furnace opening (11), a plurality of protrusions (241) being provided on the lower side of the second cleaning plate (24), and the plurality of protrusions (241) being spaced apart on the second cleaning plate (24).

10. The easy-to-clean roasting furnace according to claim 9, characterized in that: The first cleaning assembly (2) further comprises a limiting member (25), the limiting member (25) being passed through the guide rod (21), and the two ends of the limiting member (25) respectively abutting against the first cleaning plate (23) and the second cleaning plate (24).

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