Vacuum calcining furnace with safe explosion-proof structure

Abstract

The vacuum calcining furnace with the safe anti-explosion structure comprises an anti-explosion shell, a calcining furnace body is arranged in an installation groove formed in one side of the interior of the anti-explosion shell, and the outer side of a storage frame connected with the interior of the calcining furnace body in a clamped mode and the anti-explosion shell form a movable structure through a sealing assembly. A suction pipe and an exhaust pipe are arranged on the two sides of a vacuum pump installed at the upper end of the anti-explosion shell respectively, the suction pipe is connected with a communicating pipe and a breather pipe through connectors, meanwhile, the communicating pipe and the breather pipe penetrate through the anti-explosion shell to be connected with a calcining furnace body, and the exhaust pipe penetrates through the anti-explosion shell to be connected with a filtering assembly. According to the vacuum calcining furnace with the safe anti-explosion structure, the temperature and pressure of the calcining furnace body in use are conveniently detected through the detector, when the temperature and air pressure are high, the vent valve is opened for pressure relief and heat exchange, internal equipment is prevented from being damaged, meanwhile, the anti-explosion shell is used for protection, and the protection effect and safety in use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to vacuum calcining furnaces, in particular to a vacuum calcining furnace with a safety explosion-proof structure. Background Art

[0002] The vacuum calcining furnace utilizes the characteristics that chemical fiber polymers can melt at around 300 degrees Celsius, can be cracked and coked at 300 degrees Celsius without air, and can produce a variety of cracking products, and can be completely oxidized at above 400 degrees Celsius in the presence of a small amount of oxygen and a certain vacuum degree. The environmentally friendly vacuum calcining furnace is a calcining furnace used for calcination in a vacuum, which has been widely used in the field of workpiece surface treatment.

[0003] After searching, it is found that the typical vacuum calcining furnace in the prior art is such as the publication number CN212253662U, an environmentally friendly vacuum calcining furnace, including a calcining furnace, the lower surface of the calcining furnace is equipped with a lifting frame, the calcining furnace includes a furnace body and a hatch, the lower surface of the furnace body is equipped with a set of mounting frames, and a slide rail is installed on the bottom side surface of the mounting frame, the lifting frame includes a slide rod, the slide rod is sleeved on the inner surface of the slide rail, and the front end of the slide rod is installed on the outer surface of the hatch door through a hydraulic rod. The utility model provides a calcining furnace with a lifting frame. When in use, the hatch door and the storage rack are driven to rise and fall by the lifting of the hydraulic rod, so as to facilitate the placement of the heating element inside the storage rack, and the hatch door and the storage rack are driven to move out from the inside of the furnace body by the forward and backward movement of the slide rod and the guide wheel, so as to facilitate loading and unloading, and effectively solve the problem that the existing calcining furnace mostly adopts a fixed bracket to be equipped with a slide rail at the top of the front bracket for loading and unloading. Therefore, in the process of loading and unloading, the workers have a large workload and are prone to burns.

[0004] In summary, the existing vacuum calcining furnace has no explosion-proof function, so the safety during use cannot be guaranteed. Secondly, harmful substances will be produced when smelting metals. The gas containing harmful substances extracted by the vacuum pump is directly discharged to the outside, which will cause pollution to the surrounding air. In view of the above problems, the existing equipment needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a vacuum calcining furnace with a safe explosion-proof structure to solve the problem that the existing vacuum calcining furnace proposed in the above background technology has no explosion-proof function, so that the safety during use cannot be guaranteed. Secondly, when smelting metals, harmful substances will be generated. The gas containing harmful substances extracted by the vacuum pump is directly discharged to the outside, which will cause pollution to the surrounding air.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a vacuum calcining furnace with a safe explosion-proof structure, comprising an explosion-proof shell,

[0007] The two ends of the outer side of the explosion-proof shell are connected to the upper end of the base through a fixing frame, and a calcining furnace body is arranged inside a mounting groove opened on one side of the interior of the explosion-proof shell, and a storage frame is snap-connected inside the calcining furnace body, and the outer side of the storage frame forms a movable structure with the explosion-proof shell through a sealing component, and a detector is arranged on the front side of the explosion-proof shell located on one side of the calcining furnace body, and a vacuum pump is installed on the upper end of the explosion-proof shell, and a suction pipe and an exhaust pipe are respectively arranged on both sides of the vacuum pump, and the suction pipe is connected to the connecting pipe and the ventilation pipe through a connecting head, and the connecting pipe and the ventilation pipe respectively penetrate the explosion-proof shell and are connected to the calcining furnace body, and a ventilation valve is installed on the ventilation pipe, and the exhaust pipe penetrates the explosion-proof shell and is connected to a filter component arranged in a placement groove opened on the other side of the interior of the explosion-proof shell.

[0008] Preferably, the sealing assembly includes an electric hydraulic cylinder and a sealing cover, the electric hydraulic cylinder is symmetrically arranged in the middle of the front and back of the explosion-proof shell, and the output end of the electric hydraulic cylinder passes through a fixed frame arranged on one side and is connected to the sealing cover, and at the same time, a pull-out frame is installed in the middle of the side of the sealing cover away from the explosion-proof shell, and a sealing sleeve is arranged on the side of the sealing cover close to the explosion-proof shell, and the sealing sleeve is snap-connected with the explosion-proof shell, and at the same time, the upper and lower ends of the sealing cover are connected to the limit block through a guide slide rod passing through a fixed frame arranged on one side.

[0009] Preferably, the detector includes a temperature detector and a pressure detector.

[0010] Preferably, the filter assembly includes a filter box, a first partition plate and a second partition plate are arranged inside the filter box, and a first filter mesh plate and a second filter mesh plate are arranged on the first partition plate and the second partition plate respectively, a first activated carbon particle layer is filled between the first partition plate and the inner side of the filter box, and a second activated carbon particle layer is filled between the first partition plate and the second partition plate, and an exhaust mesh plate is installed in the middle of the outer side of the filter box.

[0011] Preferably, the first filter screen plate is located in the middle of the lower end of the first partition plate.

[0012] Preferably, the second filter screen plate is located in the middle of the upper end of the second partition plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the vacuum calcining furnace with a safe explosion-proof structure,

[0014] (1) In order to solve the problem that the existing vacuum calcining furnace has no explosion-proof function, so that the safety during use cannot be guaranteed, the present application is provided with an explosion-proof shell, a detector and a vent valve. The detector is used to detect the temperature and pressure of the calcining furnace body during use. When the temperature and air pressure are high, the vent valve is opened to release pressure and exchange heat to avoid damage to the internal equipment. At the same time, the explosion-proof shell is used for protection, thereby improving the protection effect and safety of use;

[0015] (2) In order to solve the problem that the existing vacuum calcining furnace will produce harmful substances when smelting metals, and the gas containing harmful substances extracted by the vacuum pump will be directly discharged to the outside, which will cause pollution to the surrounding air, the present application is provided with a filter component, which is convenient for filtering and adsorbing harmful gases in the discharged gas through the first activated carbon particle layer and the second activated carbon particle layer. At the same time, the first filter mesh plate and the second filter mesh plate are staggered on the first partition plate and the second partition plate, so that when the gas is discharged, the filtration time in the filter box can be extended, thereby improving the adsorption and removal effect of harmful gases. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the front cross-sectional structure of the filter assembly of the utility model.

[0019] In the figure: 1. explosion-proof shell; 101. calcining furnace body; 2. fixing frame; 3. base; 4. detector; 5. electric hydraulic cylinder; 6. sealing cover; 601. pull-out frame; 602. sealing sleeve; 7. guide slide bar; 8. storage frame; 9. vacuum pump; 10. suction pipe; 11. connector; 12. connecting pipe; 13. ventilation pipe; 14. ventilation valve; 15. exhaust pipe; 16. filter assembly; 1601. filter box; 1602. first partition plate; 1603. second partition plate; 1604. first filter mesh plate; 1605. second filter mesh plate; 1606. first activated carbon granule layer; 1607. second activated carbon granule layer; 1608. exhaust mesh plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides a technical solution: a vacuum calcining furnace with a safe explosion-proof structure, according to Figure 1 and Figure 2As shown, both ends of the outer side of the explosion-proof housing 1 are connected to the upper end of the base 3 through a fixing frame 2, and a calcining furnace body 101 is arranged inside a mounting groove opened on one side of the explosion-proof housing 1, and a storage frame 8 is snap-connected inside the calcining furnace body 101, and the outer side of the storage frame 8 forms a movable structure with the explosion-proof housing 1 through a sealing component, and the sealing component includes an electric hydraulic cylinder 5 and a sealing cover 6, and the electric hydraulic cylinder 5 is symmetrically arranged in the middle of the front and back of the explosion-proof housing 1, and the output end of the electric hydraulic cylinder 5 passes through the fixing frame 2 arranged on one side and is connected to the sealing cover 6, and a pull-out frame 6 is installed in the middle of the side of the sealing cover 6 away from the explosion-proof housing 1 01, a sealing sleeve 602 is arranged on the side of the sealing cover 6 close to the explosion-proof shell 1, and the sealing sleeve 602 is snap-connected with the explosion-proof shell 1, and at the same time, the upper and lower ends of the sealing cover 6 are connected to the limit block through the guide slide rod 7 penetrating the fixed frame 2 arranged on one side, and a detector 4 is arranged on the front side of the explosion-proof shell 1 located on the side of the calcining furnace body 101, and the detector 4 includes a temperature detector and a pressure detector, and the temperature and pressure of the calcining furnace body 101 arranged on the inner side of the explosion-proof shell 1 are respectively detected by the temperature detector and the pressure detector during operation to ensure that the temperature and pressure are at normal values ​​during processing, so as to find problems in time.

[0022] according to Figure 1 , Figure 2 and Figure 3 As shown, a vacuum pump 9 is installed at the upper end of the explosion-proof shell 1, and a suction pipe 10 and an exhaust pipe 15 are respectively arranged on both sides of the vacuum pump 9, and the suction pipe 10 is connected to the connecting pipe 12 and the ventilation pipe 13 through a connector 11, and the connecting pipe 12 and the ventilation pipe 13 respectively penetrate the explosion-proof shell 1 and are connected to the calcining furnace body 101, and a ventilation valve 14 is installed on the ventilation pipe 13 to facilitate cooling the inside of the calcining furnace body 101, and the exhaust pipe 15 penetrates the explosion-proof shell 1 and is connected to a filter component 16 arranged in a placement groove opened on the other side of the explosion-proof shell 1, and the filter component 16 includes a filter box 1601, and a first partition plate 1602 and a second partition plate 1603 are arranged inside the filter box 1601, and the first partition plate 160 2 and the second partition plate 1603 are respectively provided with a first filter screen plate 1604 and a second filter screen plate 1605, the first filter screen plate 1604 is located in the middle of the lower end of the first partition plate 1602, and the second filter screen plate 1605 is located in the middle of the upper end of the second partition plate 1603, so as to extend the flow route of harmful gases in the filter box 1601 and improve the adsorption and removal effect, a first activated carbon particle layer 1606 is filled between the first partition plate 1602 and the inner side of the filter box 1601, and a second activated carbon particle layer 1607 is filled between the first partition plate 1602 and the second partition plate 1603, so as to further improve the filtering and adsorption effect, and an exhaust screen plate 1608 is installed in the middle of the outer side of the filter box 1601.

[0023] When in use, the sealing cover 6 is pushed to move to the outside of the explosion-proof shell 1 by the electric hydraulic cylinder 5, so that the guide slide bar 7 slides on the fixed frame 2 to improve the stability of the movement. At the same time, the storage frame 8 is moved out from the inside of the calcining furnace body 101 to place the calcined parts in the storage frame 8, and then the sealing cover 6 is pulled to move to one side of the explosion-proof shell 1 by the electric hydraulic cylinder 5, so that the sealing sleeve 602 is sealed with the outside of the explosion-proof shell 1, and then the vacuum pump 9 is started to extract the gas inside the calcining furnace body 101 through the suction pipe 10, so that the inside of the calcining furnace body 101 is in a vacuum state, and the calcined parts generate gas during processing, which enters the filter box 1601 through the suction pipe 10 and the exhaust pipe 15, is filtered and adsorbed by the first activated carbon particle layer 1606, and then is filtered and adsorbed again by the first filter screen plate 1604 and the second activated carbon particle layer 1607, and then is discharged to the exhaust screen plate 1608 through the second filter screen plate 1605, and finally is discharged through the exhaust screen plate 1608.

[0024] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the protection content of the present invention.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vacuum calcining furnace with a safety explosion-proof structure, comprising an explosion-proof housing (1), characterized in that: The two ends of the outer side of the explosion-proof shell (1) are connected to the upper end of the base (3) through a fixing frame (2), and a calcining furnace body (101) is arranged inside a mounting groove opened on one side of the interior of the explosion-proof shell (1), and a storage frame (8) is snap-connected inside the calcining furnace body (101), and the outer side of the storage frame (8) forms a movable structure with the explosion-proof shell (1) through a sealing component, and a detector (4) is arranged on the front side of the explosion-proof shell (1) located on one side of the calcining furnace body (101), and a vacuum pump (9) is installed on the upper end of the explosion-proof shell (1), and the A suction pipe (10) and an exhaust pipe (15) are respectively arranged on both sides of the vacuum pump (9), and the suction pipe (10) is connected to a connecting pipe (12) and a vent pipe (13) through a connector (11), and the connecting pipe (12) and the vent pipe (13) respectively penetrate the explosion-proof housing (1) and are connected to a calcining furnace body (101), a vent valve (14) is installed on the vent pipe (13), and the exhaust pipe (15) penetrates the explosion-proof housing (1) and is connected to a filter assembly (16) arranged in a placement groove opened on the other side of the explosion-proof housing (1).

2. The vacuum calcining furnace with a safety explosion-proof structure as claimed in claim 1, characterized in that: The sealing assembly comprises an electric hydraulic cylinder (5) and a sealing cover (6); the electric hydraulic cylinder (5) is symmetrically arranged in the middle of the front and back of the explosion-proof housing (1); and the output end of the electric hydraulic cylinder (5) passes through a fixing frame (2) arranged on one side and is connected to the sealing cover (6); at the same time, a pull-out frame (601) is installed in the middle of the side of the sealing cover (6) away from the explosion-proof housing (1); a sealing sleeve (602) is arranged on the side of the sealing cover (6) close to the explosion-proof housing (1), and the sealing sleeve (602) is snap-connected with the explosion-proof housing (1); at the same time, the upper end and the lower end of the sealing cover (6) pass through the fixing frame (2) arranged on one side and are connected to the limit block through a guide slide rod (7).

3. The vacuum calcining furnace with a safety explosion-proof structure as claimed in claim 1, characterized in that: The detector (4) comprises a temperature detector and a pressure detector.

4. The vacuum calcining furnace with a safety explosion-proof structure as claimed in claim 1, characterized in that: The filter assembly (16) includes a filter box (1601), wherein a first partition plate (1602) and a second partition plate (1603) are arranged inside the filter box (1601), and a first filter mesh plate (1604) and a second filter mesh plate (1605) are arranged on the first partition plate (1602) and the second partition plate (1603), respectively, a first activated carbon particle layer (1606) is filled between the first partition plate (1602) and the inner side of the filter box (1601), and a second activated carbon particle layer (1607) is filled between the first partition plate (1602) and the second partition plate (1603), and an exhaust mesh plate (1608) is installed in the middle of the outer side of the filter box (1601).

5. The vacuum calcining furnace with a safety explosion-proof structure as claimed in claim 4, characterized in that: The first filter screen plate (1604) is located in the middle of the lower end of the first partition plate (1602).

6. The vacuum calcining furnace with a safety explosion-proof structure as claimed in claim 4, characterized in that: The second filter screen plate (1605) is located in the middle of the upper end of the second partition plate (1603).

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