Sealing device with good sealing effect for hydrogen fluoride reacting furnace

Abstract

The utility model discloses a sealing device of a hydrogen fluoride reaction furnace, which belongs to the technical field of hydrogen fluoride processing and particularly comprises a hot air jacket and a furnace tail, and a graphite block sealing mechanism is arranged at the joint of the hot air jacket and the furnace tail. The graphite block further comprises an elastic pressing mechanism, the elastic pressing mechanism comprises fixing frames, a longitudinal elastic piece and a transverse elastic piece, the fixing frames are fixedly connected to the hot air jacket, one end of each fixing frame is located above the graphite block body and fixedly connected with the graphite block body, a pressing plate is movably connected between every two adjacent fixing frames, and the longitudinal elastic piece is fixedly connected with the transverse elastic piece. The pressing plate is connected with the two adjacent fixing frames through a longitudinal elastic piece, and the pressing plate is connected with a hot air jacket through a transverse elastic piece; through the arrangement of the transverse elastic piece, elastic force pointing to the section of the hot air jacket can be provided for the graphite block body, and the possibility that gas leaks between the graphite block body and the section of the hot air jacket is further reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydrogen fluoride processing technical field, concretely relates to a hydrogen fluoride reaction furnace sealing device with good sealing effect. BACKGROUND

[0002] Rotary reaction furnace is the equipment of hydrogen fluoride production, and the hot air jacket of the rotary reaction furnace is a steel cylinder, which is lined with refractory material. The hot air jacket is slowly rotated by a motor through a gear. The material is added from the end of the furnace, and the material is discharged from the tail end of the furnace after reaction in the hot air jacket.

[0003] The prior art discloses a Chinese utility model patent with the application number 201420475920.4, which discloses a low-temperature pyrolysis rotary furnace hot air jacket sealing device, which is composed of sealing components uniformly distributed on the furnace body and the furnace head or the tail cover. The sealing component includes a graphite block, a graphite block baffle, a sliding block, a pressing plate, a compression spring, a spring holder, an adjusting bolt, a bracket, and a sealing flange. The sealing flange and the bracket are fixed on the furnace head or the tail cover. The sliding block is fixed on one side of the machined surface of the sealing flange. The graphite block baffle is fixed on the sliding block. The graphite block is installed in the groove formed by the sliding block, the sealing flange, and the graphite block baffle. The spring holder is fixed on the bracket. The adjusting bolt is installed on the spring holder. The adjusting bolt, the compression spring, the pressing plate, the graphite block, and the graphite block are sequentially installed. The graphite block is pressed against the circumferential surface of the rotary furnace body. The utility model is not easy to wear, has high strength and high temperature resistance, can be normally used in high temperature areas, and has a long service life. The furnace body jump is compensated by the compression spring, and the sealing component will not be damaged, and the air leakage and material leakage will not occur.

[0004] The above prior art also has the following deficiencies: due to the compensation of the compression spring, the graphite block is pressed against the circumferential surface of the hot air jacket, but the graphite block cannot provide a spring force directed to the hot air jacket section, which may cause gas leakage between the graphite block and the hot air jacket section. Therefore, a hydrogen fluoride reaction furnace sealing device with good sealing effect is needed to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] To solve the problems in the above background art, the utility model provides a hydrogen fluoride reaction furnace sealing device with good sealing effect, which can provide a spring force directed to the hot air jacket section for the graphite block body, and further reduce the possibility of gas leakage between the graphite block body and the hot air jacket section.

[0006] To achieve the above object, the utility model provides following technical scheme: a hydrogen fluoride reaction furnace sealing device that good sealing effect, including hot -blast jacket and furnace tail, the junction of hot -blast jacket and furnace tail is provided with graphite block sealing mechanism, graphite block sealing mechanism includes a plurality of graphite block bodies, a plurality of graphite block bodies are fixedly connected on hot -blast jacket, one end of graphite block body is fixedly connected on hot -blast jacket, the other end of graphite block body is flexibly attached to the surface of furnace tail,

[0007] Still include elastic pressure mechanism, the elastic pressure mechanism includes fixed frame, longitudinal elastic member and horizontal elastic member, the fixed frame is fixedly connected on hot -blast jacket, one end of fixed frame is located above graphite block body and is fixedly connected with graphite block body, two adjacent fixed frames are movably connected with pressure plate, the pressure plate is connected between two adjacent fixed frames through longitudinal elastic member, the pressure plate is connected with fixed frame through horizontal elastic member, longitudinal elastic member and horizontal elastic member cooperate and constitute the pre -pressing structure of graphite block body.

[0008] Preferably, the fixed frame is provided with a plurality of, two adjacent fixed frames are respectively centered on the gap between two adjacent graphite block bodies and symmetrically distributed.

[0009] Preferably, the fixed frame includes a U-shaped plate, an ear plate and a reinforcing plate, both ends of the U-shaped plate are fixedly connected with the ear plate, and both sides in the U-shaped plate are fixedly connected with the reinforcing plate.

[0010] Preferably, the pressure plate includes a vertical plate and a horizontal plate, the vertical plate is attached to one end of the graphite block body, the graphite block body is located between the vertical plate and the hot -blast jacket, a horizontal plate is fixedly connected to one side of the vertical plate opposite to the hot -blast jacket, and the horizontal plate is arranged above the graphite block body and perpendicular to the vertical plate.

[0011] Preferably, the longitudinal elastic member includes two longitudinal compression springs, one end of the longitudinal compression spring is hinged to the horizontal plate, and the other end of the longitudinal compression spring is connected to the ear plate through a screw rod.

[0012] Preferably, the screw rod passes through the hole slot arranged on the ear plate, nuts are threadedly connected to both sides of the screw rod, and the two nuts are fixedly connected to the ear plate.

[0013] Preferably, the horizontal elastic member includes a horizontal compression spring, the horizontal compression spring is arranged between the two longitudinal compression springs and above the horizontal plate, one end of the horizontal compression spring is hinged to the vertical plate, the other end of the horizontal compression spring is hinged to a base, and the base is fixedly connected to the adjacent fixed frame.

[0014] Compared with the prior art, the graphite block body is tightly compressed and fixed on the furnace tail, the contact pressure between the graphite block bodies is maintained, and the possibility of gas leakage is reduced.

[0015] The longitudinal elastic member can provide the graphite block body with the elastic force directed to the axial direction of the hot air jacket, the graphite block body is tightly compressed and fixed on the furnace tail, the contact pressure between the graphite block bodies is maintained, and the possibility of gas leakage is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation to the present application. In the drawings:

[0017] Figure 1 is a three-dimensional structure schematic view of the present application;

[0018] Figure 2 is a three-dimensional structure schematic view of the elastic compression mechanism of the present application;

[0019] Figure 3 is a three-dimensional structure schematic view of the elastic compression mechanism of the present application;

[0020] Figure 4 is a right view structure schematic view of the elastic compression mechanism of the present application;

[0021] Figure 5 is a left view structure schematic view of the elastic compression mechanism of the present application;

[0022] Figure 6 is a top view structure schematic view of the elastic compression mechanism of the present application;

[0023] In the drawings: 1, hot air jacket; 2, furnace tail; 3, graphite block body; 4, fixing frame; 41, U-shaped plate; 42, ear plate; 43, reinforcing plate; 5, longitudinal elastic member; 51, longitudinal compression spring; 52, screw rod; 53, nut; 6, transverse elastic member; 61, transverse compression spring; 62, base; 7, compression plate; 71, vertical plate; 72, horizontal plate. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0025] Embodiment

[0026] Please refer to Figures 1-6 The embodiment provides the following technical scheme: a hydrogen fluoride reaction furnace sealing device with good sealing effect, which comprises a hot air jacket 1 and a furnace tail 2. A graphite block sealing mechanism is arranged at the joint between the hot air jacket 1 and the furnace tail 2. The graphite block sealing mechanism comprises a plurality of graphite block bodies 3. The graphite block bodies 3 are fixedly connected in a circle on the hot air jacket 1. One end of the graphite block body 3 is fixedly connected to the hot air jacket 1. The other end of the graphite block body 3 is flexibly attached to the surface of the furnace tail 2.

[0027] In some embodiments, a graphite block sealing mechanism is also arranged at the joint between the hot air jacket 1 and the furnace head, for sealing the joint between the hot air jacket 1 and the furnace head.

[0028] The device further comprises an elastic pressing mechanism. The elastic pressing mechanism comprises a fixed frame 4, a longitudinal elastic member 5 and a transverse elastic member 6. The fixed frame 4 is fixedly connected to the hot air jacket 1. One end of the fixed frame 4 is located above the graphite block body 3 and is fixedly connected to the graphite block body 3. A pressing plate 7 is movably connected between adjacent two fixed frames 4. The pressing plate 7 comprises a vertical plate 71 and a horizontal plate 72. The vertical plate 71 is attached to the right side of the graphite block body 3. The graphite block body 3 is located between the vertical plate 71 and the hot air jacket 1. The horizontal plate 72 is fixedly connected to the left side of the vertical plate 71. The graphite block body 3 is located between the hot air jacket 1 and the vertical plate 71. The horizontal plate 72 is arranged above the graphite block body 3 and is arranged perpendicularly to the vertical plate 71. In some embodiments, the vertical plate 71 is arranged at the gap between the side walls of adjacent two graphite block bodies 3. The horizontal plate 72 is arranged at the gap between the top walls of adjacent two graphite block bodies 3.

[0029] In some embodiments, a plurality of fixed frames 4 are arranged. The fixed frames 4 are arranged in one-to-one correspondence with the graphite block bodies 3. Adjacent two fixed frames 4 are symmetrically distributed with the gap between adjacent two graphite block bodies 3 as the center.

[0030] The fixed frame 4 comprises a U-shaped plate 41, an ear plate 42 and a reinforcing plate 43. Both ends of the U-shaped plate 41 are fixedly connected to the ear plate 42. Both sides in the U-shaped plate 41 are fixedly connected to the reinforcing plate 43. The U-shaped plate 41, the ear plate 42 and the reinforcing plate 43 are arranged to facilitate the connection of the pressing plate 7 and the fixed frame 4, and to facilitate the fixation of the fixed frame 4 to the graphite block body 3.

[0031] The compression plate 7 is connected between the two adjacent fixed frames 4 through the longitudinal elastic member 5, the longitudinal elastic member 5 comprises two longitudinal compression springs 51, one end of the longitudinal compression spring 51 is hinged with the horizontal plate 72, the other end of the longitudinal compression spring 51 is connected with the lug plate 42 through the screw rod 52, the screw rod 52 movably penetrates the hole groove arranged on the lug plate 42, the screw rod 52 is threadedly connected with the nut 53 on the two sides of the lug plate 42, and the two nuts 53 are jointly connected with the screw rod 52 on the lug plate 42. The longitudinal elastic member 5 can provide the graphite block body 3 with the elastic force directed to the axial direction of the hot air jacket 1, so that the graphite block body 3 is tightly compressed and fixed on the furnace tail 2, the contact pressure between the graphite block bodies 3 is maintained, and the possibility of gas leakage is reduced.

[0032] The compression plate 7 is connected with the fixed frame 4 through the transverse elastic member 6, and the longitudinal elastic member 5 and the transverse elastic member 6 jointly form the pre-compression structure of the graphite block body 3. The transverse elastic member 6 comprises a transverse compression spring 61, which is arranged between the two longitudinal compression springs 51 and above the horizontal plate 72. One end of the transverse compression spring 61 is hinged with the vertical plate 71, and the other end of the transverse compression spring 61 is hinged with a base 62, which is fixedly connected with the two adjacent U-shaped plates 41. The transverse elastic member 6 can provide the graphite block body 3 with the elastic force directed to the section of the hot air jacket 1, thereby further reducing the possibility of gas leakage between the graphite block body 3 and the section of the hot air jacket 1.

[0033] In some embodiments, one end of the transverse compression spring 61 can be hinged with the vertical plate 71, and the other end of the transverse compression spring 61 can also be hinged with the screw rod 52, which is threadedly connected with the base 62 through the nut 53.

[0034] The working principle of the utility model is: when the hydrogen fluoride reaction furnace is in a non-working state, only the sealed graphite block body 3 can achieve good sealing effect and prevent gas leakage;

[0035] During the operation of the hydrogen fluoride reaction furnace, gaps may appear between the graphite block bodies 3 due to thermal expansion and contraction, which may cause gas leakage. At this time, the longitudinal compression spring 51 starts to work, and the gap between the graphite block bodies 3 is reduced through the extrusion force of the longitudinal compression spring 51, thereby reducing the amount of gas leakage.

[0036] Moreover, during the operation of the hydrogen fluoride reaction furnace, the longitudinal compression spring 51 and the transverse compression spring 61 arranged between the compression plate 7 and the hot air jacket 1 can provide the graphite block body 3 with the elastic force directed to the section of the hot air jacket 1. Under the action of the elastic force of the transverse compression spring 61, the graphite block body 3 is tightly attached to the section of the hot air jacket 1, thereby further reducing the possibility of gas leakage between the graphite block body 3 and the section of the hot air jacket 1.

[0037] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A hydrogen fluoride reaction furnace sealing device with good sealing effect, comprising a hot air jacket (1) and a furnace tail (2), a graphite block sealing mechanism is arranged at the joint between the hot air jacket (1) and the furnace tail (2), the graphite block sealing mechanism comprises a plurality of graphite block bodies (3), the plurality of graphite block bodies (3) are fixedly connected in a circle on the hot air jacket (1), one end of the graphite block body (3) is fixedly connected on the hot air jacket (1), and the other end of the graphite block body (3) is flexibly attached to the surface of the furnace tail (2). characterized in that Further comprising an elastic compression mechanism, the elastic compression mechanism comprises a fixed frame (4), a longitudinal elastic member (5) and a transverse elastic member (6), the fixed frame (4) is fixedly connected on the hot air jacket (1), one end of the fixed frame (4) is located above the graphite block body (3) and is fixedly connected with the graphite block body (3), two adjacent fixed frames (4) are movably connected with a compression plate (7), the compression plate (7) is connected between two adjacent fixed frames (4) through the longitudinal elastic member (5), and the compression plate (7) is connected with the fixed frame (4) through the transverse elastic member (6); the longitudinal elastic member (5) and the transverse elastic member (6) cooperatively form a pre-compression structure of the graphite block body (3).

2. The hydrogen fluoride reaction furnace sealing device with good sealing effect according to claim 1, characterized in that: A plurality of fixed frames (4) are arranged, and two adjacent fixed frames (4) are symmetrically distributed with the gap between two adjacent graphite block bodies (3) as the center.

3. The hydrogen fluoride reaction furnace sealing device with good sealing effect according to claim 1, characterized in that: The fixed frame (4) comprises a U-shaped plate (41), an ear plate (42) and a reinforcing plate (43), both ends of the U-shaped plate (41) are fixedly connected with the ear plate (42), and the reinforcing plate (43) is fixedly connected to both sides in the U-shaped plate (41).

4. The hydrogen fluoride reaction furnace sealing device with good sealing effect according to claim 3, characterized in that: The compression plate (7) comprises a vertical plate (71) and a horizontal plate (72), the vertical plate (71) is attached to one end of the graphite block body (3), the graphite block body (3) is located between the vertical plate (71) and the hot air jacket (1), the horizontal plate (72) is fixedly connected to the side of the vertical plate (71) opposite to the hot air jacket (1), and the horizontal plate (72) is arranged above the graphite block body (3) and is arranged perpendicularly to the vertical plate (71).

5. The hydrogen fluoride reaction furnace sealing device with good sealing effect according to claim 4, characterized in that: The longitudinal elastic member (5) comprises two longitudinal compression springs (51), one end of the longitudinal compression spring (51) is hinged to the horizontal plate (72), and the other end of the longitudinal compression spring (51) is connected to the ear plate (42) through a screw rod (52).

6. The hydrogen fluoride reaction furnace sealing device with good sealing effect according to claim 5, characterized in that: The screw rod (52) movably penetrates the hole groove arranged on the ear plate (42), nuts (53) are threadedly connected to both sides of the screw rod (52), and the two nuts (53) cooperatively fix the screw rod (52) on the ear plate (42).

7. The hydrogen fluoride reaction furnace sealing device with good sealing effect according to claim 6, characterized in that: The transverse elastic member (6) comprises a transverse compression spring (61) arranged between the two longitudinal compression springs (51) and above a horizontal plate (72), one end of the transverse compression spring (61) is hinged with a vertical plate (71), the other end of the transverse compression spring (61) is hinged with a base (62), and the base (62) is fixedly connected on the adjacent fixed frame (4).

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