Split sealing kiln door

Abstract

The utility model discloses a split type sealing kiln door which comprises a door frame, door bodies and a door body locking mechanism, door frame hinges are arranged on the two sides of the door frame, the door bodies are divided into the left door body and the right door body, and the left door body and the right door body are connected to the door frame hinges on the two sides of the door frame through shafts respectively. Locking mechanism cavities are formed in the rear portions of the left door body and the right door body, and door body locking mechanisms are arranged in the locking mechanism cavities of the two door bodies. Lock tongue rods are arranged on the sides of the left door body and the right door body; a frame body concave spigot and a locking groove are formed in the door frame; convex spigots are arranged on the edges of door plates of the two side door bodies; the convex seam allowance on the side door plate 2 can be matched and sealed with the concave seam allowance of the frame body; and the door body locking mechanism drives the spring bolt rod to extend out and be locked in the locking groove. A concave spigot, a convex spigot and a door body locking mechanism improve the sealing and heat insulation performance; and heat efficiency caused by the problems of fire spitting and the like in door gaps due to air leakage and material leakage can be prevented from escaping through the kiln door.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary kiln furnaces, and in particular relates to a double-opening sealed kiln door. Background Art

[0002] The rotary kiln is an important equipment for the incineration of hazardous waste. The interior of the kiln is made of refractory materials and the exterior is covered with steel plates. During normal operation, the internal temperature is above 1200℃. The safety, sealing and maintenance flexibility of the kiln door are essential factors to ensure the safe production and economic operation of the enterprise. At present, other methods such as upper rails, lower rails, upper and lower rails are used as the safety door of the kiln head. Such kiln doors have poor sealing and are prone to deformation, high-temperature carbonization, and burn-through during high-temperature operation.

[0003] Poor sealing of the kiln door will cause air leakage and material leakage. When there is a fire in the kiln, fire may even burst from the door gap, increasing the energy consumption of the kiln and even seriously affecting the personal safety of the personnel on duty and the safe production and economic operation of the enterprise. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and provide a double-opening sealed kiln door.

[0005] A double-opening sealed kiln door comprises: a door frame 1, a door body 2, and a door body locking mechanism 3. Door frame hinges are arranged on both sides of the door frame 1, and the door body 2 is divided into a left door body 21 and a right door body 22. The left door body 21 and the right door body 22 are respectively axially connected to the door frame hinges on both sides of the door frame 1; locking mechanism cavities are arranged at the rear of the left door body 21 and the right door body 22, and the door body locking mechanisms 3 are arranged in the locking mechanism cavities of the door bodies on both sides; locking tongue rods are arranged on the sides of the left door body 21 and the right door body 22; a frame concave stop 13 and a locking groove 15 are arranged on the door frame 1; convex stoppers are arranged on the edges of the door panels on both sides; the convex stoppers on the door panels on the two sides can fit and seal with the frame concave stoppers 13; the locking tongue rod can be extended and locked in the locking groove 15.

[0006] The door frame 1 is provided with a left hinge 11 and a right hinge 12 on both sides respectively; the left door body 21 is provided with a left door hinge 211 at the left end thereof, and the left door hinge 211 is axially connected to the left hinge 11; the right door body 22 is provided with a right door hinge 221 at the left end thereof, and the right door hinge 221 is axially connected to the right hinge 12.

[0007] The frame body concave stop 13 is annular and is arranged on the outer vertical surface of the frame body inside the door frame 1 .

[0008] The left door body 21 is provided with a left locking mechanism cavity 212; the four sides of the left locking mechanism cavity 212 are provided with left door body lock rod grooves; the left door body lock rod grooves are provided with lock tongue rods; the right door body 22 is provided with a right locking mechanism cavity 222, the four sides of the right locking mechanism cavity 222 are provided with right door body lock rod grooves; lock tongue rods are provided in the right door body lock rod grooves on the upper, lower and right sides of the right locking mechanism cavity 222; the opposite sides of the left locking mechanism cavity 212 and the right locking mechanism cavity 222 are locked with it through the lock tongue rod in the left door body.

[0009] The door locking mechanism 3 comprises: a handle wheel 31, a connecting shaft 32, a driving wheel disc 33, a linkage rod 34, and a scissor-type frame 35; the handle wheel 31 is arranged on the outer side of the door panel, and the handle wheel 31 is connected to the driving wheel disc 33 through the connecting shaft 32; there are 4 groups of linkage rods 34 and scissor-type frames 35, and the 4 linkage rods 34 have the same structure; 4 wheel disc axle pins are arranged on the driving wheel disc 33; one end of the 4 linkage rods 34 are respectively axially connected to the wheel disc axle pins; the other ends of the 4 linkage rods 34 are axially connected to the central axle pins 351 of the 4 scissor-type frames 35; one end of the scissor-type frame 35 is slidably connected to a scissor-type frame base point sliding groove provided in the locking mechanism cavity; the other end of the scissor-type frame 35 is slidably connected to the lock tongue rod; the driving wheel disc 33 rotates to push the 4 lock tongue rods to extend from or retract into the door body lock rod groove.

[0010] The two ends of the linkage rod 34 are connected by a spring 341 provided in the middle.

[0011] A heat insulation plate is arranged inside the locking mechanism cavity.

[0012] A sealing strip 14 is provided on the convex edge of the side of the concave stop 13 of the frame body; the sealing strip 14 is an asbestos fiber strip.

[0013] The technical scheme provides a double-opening sealed kiln door, which includes: a door frame, a door body, and a door body locking mechanism. Door frame hinges are arranged on both sides of the door frame. The door body is divided into a left door body and a right door body, and the left door body and the right door body are respectively axially connected to the door frame hinges on both sides of the door frame; the left door body and the right door body are respectively provided with a locking mechanism cavity at the rear, and the locking mechanism cavities of the two side door bodies are provided with a door body locking mechanism; the sides of the left door body and the right door body are provided with a lock tongue rod; the door frame is provided with a frame body concave stopper and a locking groove; the edges of the door panels of the two side door bodies are provided with a convex stopper; the convex stopper on the two side door panels can be matched and sealed with the frame body concave stopper; the door body locking mechanism drives the lock tongue rod to extend and lock in the locking groove. The concave and convex stopper and the door body locking mechanism improve the sealing and heat insulation performance; and can prevent the heat efficiency caused by problems such as fire spraying in the door gap caused by air leakage and material leakage from escaping through the kiln door. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of a double-opening sealed kiln door of the utility model;

[0015] Figure 2This is a schematic diagram of the opening state of a double-opening sealed kiln door of the utility model;

[0016] Figure 3 It is a schematic cross-sectional view of the door frame structure of a double-leaf sealed kiln door of the utility model;

[0017] Figure 4 It is a schematic diagram of the left door structure of a double-opening sealed kiln door of the utility model;

[0018] Figure 5 It is a partial cross-sectional schematic diagram of the left door body of a double-leaf sealed kiln door of the utility model;

[0019] Figure 6 It is a schematic diagram of the locking mechanism of the left door body of a double-leaf sealed kiln door of the utility model;

[0020] In the figure: 1, door frame, 11, left hinge, 12, right hinge, 13, frame concave stop, 14, sealing strip, 15, locking groove, 151, upper locking groove, 152, lower locking groove, 153, left locking groove, 154, right locking groove, 2, door body, 21, left door body, 211, door body hinge, 212, left locking mechanism cavity, 2121, upper locking rod groove of left door body, 2122, lower locking rod groove of left door body, 2123, left locking rod groove of left door body, 2124 , right locking rod groove of left door body, 213, convex stopper of left door body, 2151, tongue rod driving mechanism connecting part, 2152, driving mechanism sliding groove, 2126, base point sliding groove, 22, right door body, 221, right door body hinge, 222, right locking mechanism cavity, 2223, left locking rod groove of right door body, 223, convex stopper of right door body, 3, door body locking mechanism, 31, handle wheel, 32, connecting shaft rod, 33, driving wheel disc, 34, connecting rod, 35, scissors frame. DETAILED DESCRIPTION

[0021] The technical scheme will be further described clearly and completely below in conjunction with the accompanying drawings of the technical scheme. The described embodiments are only a part of the technical scheme, not all of the embodiments. Based on the technical scheme, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example

[0022] See also Figures 1 to 6 As shown, a double-opening sealed kiln door comprises: a door frame 1, a door body 2, and a door body locking mechanism 3;

[0023] Door frame hinges are provided on both sides of the door frame 1, and the door frame hinges are respectively provided with a left hinge 11 and a right hinge 12;

[0024] The door body 2 is divided into a left door body 21 and a right door body 22. The left door body 21 and the right door body 22 have the same symmetrical structure. A left door body hinge 211 is provided at the left end of the left door body 21, and the door body hinge 211 is axially connected to the left hinge 11. A right door body hinge 221 is provided at the left end of the right door body 22, and the right door body hinge 221 is axially connected to the right hinge 12.

[0025] That is, door frame hinges are arranged on both sides of the door frame 1, and the door body 2 is divided into a left door body 21 and a right door body 22, and the left door body 21 and the right door body 22 have the same symmetrical structure; the left door body 21 and the right door body 22 are respectively axially connected to the door frame hinges on both sides of the door frame 1;

[0026] The left door body 21 is provided with a left locking mechanism cavity 212 ; the right door body 21 is provided with a right locking mechanism cavity 222 ; that is, both the left door body 21 and the right door body 22 are provided with locking mechanism cavities, and both locking mechanism cavities are provided with door body locking mechanisms 3 .

[0027] The outer side of the inner frame of the door frame 1 is provided with a frame concave stop 13; the frame concave stop 13 is annular, and a sealing strip 14 is provided on the convex edge of the side of the frame concave stop 13; the inner four end surfaces of the inner frame of the door frame 1 are all provided with locking grooves 15;

[0028] The locking groove 15 is divided into an upper locking groove 151 , a lower locking groove 152 , a left locking groove 153 , and a right locking groove 154 .

[0029] The left door body 21 has a left door body convex stop 213 on the inner side of the door panel, and the right door body 22 has a right door body convex stop 223 on the inner side of the door panel. The left door body convex stop 213 and the right door body convex stop 223 can be embedded in the frame body concave stop 13; that is, the left door body convex stop 213 and the right door body convex stop 223 are structurally compatible with the frame body concave stop 13;

[0030] This technical solution is further described by taking the structure of the left door body 21 as an example;

[0031] The left locking mechanism cavity 212 is provided with left door body locking rod grooves on four sides, and the left door body locking rod grooves are divided into: left door body upper locking rod groove 2121, left door body lower locking rod groove 2122, left door body left locking rod groove 2123, and left door body right locking rod groove 2124;

[0032] The upper lock rod groove 2121 of the left door body, the lower lock rod groove 2122 of the left door body, the left lock rod groove 2123 of the left door body and the right lock rod groove 2124 of the left door body are all provided with a lock tongue rod 215; the main body structure of the four lock tongue rods is the same; a tongue rod driving mechanism connecting part 2151 is provided on the inner side of each lock tongue rod, and a driving mechanism sliding groove 2152 is provided on the tongue rod driving mechanism connecting part 2151.

[0033] The door locking mechanism 3 provided in the left door body 21 and the right door body 22 has the same structure;

[0034] The door locking mechanism 3 includes: a handle wheel 31, a connecting shaft 32, a driving wheel disc 33, a linkage rod 34, and a scissor frame 35;

[0035] The handle wheel 31 is connected to the driving wheel disc 33 through the connecting shaft 32; the handle wheel 31 is arranged on the outer side of the door panel; the centers of the handle wheel 31 and the driving wheel disc 33 intersect with the axis of the connecting shaft 32; the connecting rods 34 and the scissor frames 35 are provided with 4 groups, the 4 connecting rods 34 have the same structure, and the driving wheel disc 33 is provided with 4 wheel disc shaft pins; the 4 scissor frames 35 have the same structure; one end of the 4 connecting rods 34 is respectively axially connected to the wheel disc shaft pin; the other end of the 4 connecting rods 34 is axially connected to the central shaft pin 351 of the 4 scissor frames 35;

[0036] The left locking mechanism cavity 212 is provided with 4 groups of scissor frame base point sliding grooves 2126; the tail end of the scissor frame 35 is provided with a first sliding pin, and the first sliding pin is sleeved in the base point sliding groove 2126; the front end of the scissor frame 35 is provided with a second sliding pin, and the second sliding pin slides in the driving mechanism sliding groove 2152; one end of the scissor frame 35 is extended with the base point sliding groove 2126 as the extension limit; the driving wheel 33 rotates the connecting rod 34, and the connecting rod 34 pushes the lock tongue rod connected thereto to move linearly through the scissor frame 35;

[0037] The two ends of the linkage rod 34 are connected by a spring 341 in the middle; the linkage rod 341 buffers the stress transmitted to the lock tongue rod by the driving wheel 33;

[0038] That is, the driving wheel 33 rotates to push the four lock tongue rods to extend from or retract into the door body lock rod grooves.

[0039] A left heat insulation board 216 is provided inside the left locking mechanism cavity 212; a right heat insulation board is provided inside the right locking mechanism cavity 222;

[0040] The sealing strip 14 is an asbestos fiber strip.

[0041] The left door body 21 and the right door body 22 have the same symmetrical structures; the difference is that there is no lock tongue rod 215 in the right door body left lock rod groove 2223 provided on the right door body 22; the lock tongue rod 215 provided in the left door body left lock rod groove 2123 can be embedded in the right door body left lock rod groove 2223 after being extended.

[0042] The lock tongue rods provided at the upper ends of the left door body 21 and the right door body 22 can be locked in the upper locking groove 151; the lock tongue rods provided at the lower ends of the left door body 21 and the right door body 22 can be extended and locked in the lower locking groove 152; the left lock tongue rod of the left door body 21 can be locked in the left locking groove 153; the lock tongue rod provided at the right end of the right door body 22 can be locked in the right locking groove 154.

Claims

1. A double-opening sealed kiln door, comprising: A door frame (1), a door body (2), and a door body locking mechanism (3), wherein door frame hinges are arranged on both sides of the door frame (1), and the door body (2) is divided into a left door body (21) and a right door body (22), and the left door body (21) and the right door body (22) are respectively axially connected to the door frame hinges on both sides of the door frame (1); the characteristics are as follows: a locking mechanism cavity is arranged at the rear of the left door body (21) and the right door body (22), and a door body locking mechanism (3) is arranged in the locking mechanism cavity of the two side door bodies; a lock tongue rod is arranged on the side of the left door body (21) and the right door body (22); a frame body concave stopper (13) and a locking groove (15) are arranged on the door frame (1); a convex stopper is arranged on the edge of the door panels of the two side door bodies; the convex stopper on the two side door panels fits and seals with the frame body concave stopper (13); the door body locking mechanism drives the lock tongue rod to extend and lock in the locking groove (15).

2. The double-opening sealed kiln door according to claim 1, characterized in that: A left hinge (11) and a right hinge (12) are respectively provided on both sides of the door frame (1); a left door hinge (211) is provided at the left end of the left door body (21), and the left door hinge (211) is axially connected to the left hinge (11); a right door hinge (221) is provided at the left end of the right door body (22), and the right door hinge (221) is axially connected to the right hinge (12).

3. The double-opening sealed kiln door according to claim 2, characterized in that: The frame body concave stop (13) is annular and is arranged on the outer vertical surface of the frame body inside the door frame (1).

4. The double-opening sealed kiln door according to claim 1, characterized in that: The left door body (21) and the right door body (22) are symmetrical in structure. A left locking mechanism cavity (212) is provided in the left door body (21). The four sides of the left locking mechanism cavity (212) are provided with left door body lock rod grooves. The left door body lock rod grooves are provided with lock tongue rods. A right locking mechanism cavity (222) is provided in the right door body (22). The four sides of the right locking mechanism cavity (222) are provided with right door body lock rod grooves. Lock tongue rods are provided in the upper, lower and right right door body lock rod grooves of the right locking mechanism cavity (222). The opposite sides of the left locking mechanism cavity (212) and the right locking mechanism cavity (222) are locked with the left door body through the lock tongue rod in the left door body.

5. A double-opening sealed kiln door according to claim 3 or 4, characterized in that: The door locking mechanism (3) comprises: a handle wheel (31), a connecting shaft (32), a driving wheel disc (33), a linkage rod (34), and a scissor frame (35); the handle wheel (31) is arranged on the outer side of the door panel, and the handle wheel (31) is connected to the driving wheel disc (33) via the connecting shaft (32); the linkage rod (34) and the scissor frame (35) are provided in four groups, and the four linkage rods (34) have the same structure; the driving wheel disc (33) is provided with Four wheel disc shaft pins; one end of four linkage rods (34) are respectively axially connected to the wheel disc shaft pins; the other ends of the four linkage rods (34) are axially connected to the central shaft pins 351 of four scissor-type frames (35); one end of the scissor-type frame (35) is slidably connected to a scissor-type frame base point sliding groove provided in the locking mechanism cavity; the other end of the scissor-type frame (35) is slidably connected to the lock tongue rod; the driving wheel disc (33) rotates to push the four lock tongue rods to extend from or retract into the door body lock rod groove.

6. The double-opening sealed kiln door according to claim 5, characterized in that: The two ends of the connecting rod (34) are connected via a spring (341) provided in the middle.

7. The double-opening sealed kiln door according to claim 6, characterized in that: A heat insulation plate is arranged inside the locking mechanism cavity.

8. The double-opening sealed kiln door according to claim 7, characterized in that: A sealing strip (14) is provided on the convex edge of the side of the concave stopper (13) of the frame body; the sealing strip (14) is an asbestos fiber strip.

Images