Liquid ammonia storage container for pit type nitriding furnace

Abstract

The present invention discloses a liquid ammonia storage container for a pit-type nitriding furnace, and relates to the technical field of liquefied ammonia storage tanks, including: an outer shell and a scraping mechanism installed inside the outer shell for cleaning the inner wall of the outer shell, the scraping mechanism includes a connecting frame arranged inside the outer shell, and four first filter plates are fixedly connected to the inner side of the connecting frame; a partition collector, located on both sides of the connecting frame, for removing impurities attached to the first filter plates; a suction reflux assembly, located at both ends of the outer shell, for cooperating with the partition collector to discharge impurities. The present invention scrapes the impurities corroded on the inner wall of the outer shell by arranging the cooperation of parts such as the first drive motor, thereby maintaining the cleanliness of the inner wall of the container, thereby reducing the corrosion effect of ammonia on the inner wall of the outer shell, thereby increasing the service life of the outer shell, and at the same time reducing the generation of impurities from the source, thereby improving the overall practicality of the device.

Description

Technical Field

[0001] The invention relates to the technical field of liquefied ammonia storage tanks, in particular to a liquid ammonia storage container for a pit-type nitriding furnace. Background Art

[0002] The liquid ammonia storage container in the pit nitriding furnace, that is, the liquid ammonia storage tank, is one of the key equipment in the nitriding process. In the pit nitriding furnace, liquid ammonia is used as the medium for nitriding treatment. It is heated and decomposed to produce active nitrogen atoms, which penetrate into the surface of the workpiece, thereby improving the wear resistance, fatigue resistance and corrosion resistance of the workpiece. Therefore, a special liquid ammonia storage container is required to store liquid ammonia during the use of the pit nitriding furnace;

[0003] Existing liquid ammonia storage containers are usually made of carbon steel. Ammonia is a corrosive gas, and carbon steel has poor corrosion resistance. Therefore, ammonia stored in a carbon steel container for a long time will corrode the inner wall of the container, and some impurities produced by corrosion will adhere to the inner wall of the container, thereby increasing the degree of corrosion of ammonia. At the same time, some impurities produced by corrosion will mix with the liquid ammonia inside the container, thereby causing the purity of liquid nitrogen to become lower, which will cause damage to the pit-type nitriding furnace when used by the staff. For this reason, we designed a liquid ammonia storage container in a pit-type nitriding furnace to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a liquid ammonia storage container for a pit-type nitriding furnace in order to solve the problem that the inner wall of a liquid ammonia storage container may be corroded to produce impurities mixed in the liquid ammonia, thereby affecting the purity of the liquid ammonia.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a liquid ammonia storage container for a pit-type nitriding furnace, comprising: an outer shell and a scraping mechanism installed inside the outer shell for cleaning the inner wall of the outer shell, the scraping mechanism comprising a connecting frame arranged inside the outer shell, and four first filter plates are fixedly connected to the inner side of the connecting frame; a partition collector, located on both sides of the connecting frame, for removing impurities attached to the first filter plates; a suction reflux assembly, located at both ends of the outer shell, for cooperating with the partition collector to discharge impurities.

[0006] As a further solution of the present invention: the scraping mechanism also includes a protective shell fixedly connected to the bottom and top of the inner side of the outer shell, a first driving motor is installed on the inner side of the protective shell, the output end of the first driving motor is connected to the second rotating shaft, the outer wall of the second rotating shaft is wound with a rope, one end of the two ropes are respectively fixedly connected to the two sides of the connecting frame, two connecting seats are fixedly connected to the inner side of the outer shell, the inner sides of the two connecting seats are rotatably connected to a first rotating shaft, and the rope is attached to the first rotating shaft.

[0007] As a further solution of the present invention: a limiting tooth is fixedly connected to one side of the connecting frame, a limiting groove matching the limiting tooth is opened on the inner side of the outer shell, and the first filter plate is slidably connected to the outer shell through the limiting tooth fixedly connected to one side.

[0008] As a further scheme of the present invention: the partition collector includes a cylinder fixedly connected to the inner side of the first filter plate, cleaning covers are provided on both sides of the cylinder, and the two cleaning covers are respectively located on both sides of one of the connecting frames, and two suspension frames are fixedly connected to the inner side of the cylinder, the inner sides of the two suspension frames are rotatably connected to a second telescopic rod, the outer walls of the two second telescopic rods are slidably connected to a first telescopic rod, one end of the two first telescopic rods passes through the outer wall of the cylinder and is fixedly connected to a disc, and the disc is fixedly connected to the cleaning cover, a limit plate is rotatably connected to both ends of the cylinder, the first telescopic rod is slidably connected to the limit plate, a tension spring is installed between the limit plate and the disc, and a contraction component for driving the two discs to contract is provided between the two discs.

[0009] As a further solution of the present invention: the outer wall of the second telescopic rod is fixedly connected to a limiting block, the inner side of the first telescopic rod is provided with a limiting guide groove matching the limiting block, and the second telescopic rod is slidably connected to the first telescopic rod through limiting blocks fixedly connected on both sides.

[0010] As a further solution of the present invention: the partition collector also includes a rotating seat fixedly connected to the inner side of the cylinder, a second driving motor is installed on one side of the rotating seat, the output end of the second driving motor is connected to the first rotating rod, one end of the first rotating rod is fixedly connected to the second bevel gear, the inner side of the suspension frame is rotatably connected to the second rotating rod, the outer wall of the second rotating rod is fixedly connected to the first bevel gear meshing with the second bevel gear, one end of each of the two second telescopic rods is fixedly connected to a second spur gear, the outer wall of the second rotating rod is fixedly connected to two gear seats, and each of the gear seats is provided with On one side of one of the second spur gears, the outer wall of the gear seat is fixedly connected to a plurality of rotating seats, and the plurality of rotating seats are equidistantly distributed around the outer wall of the gear seat, a latch tooth is provided on the inner side of each of the rotating seats, one end of the latch tooth is fixedly connected to a third rotating rod, and one end of the third rotating rod penetrates through the outer wall of the rotating seat and is rotatably connected to the rotating seat, a torsion spring is installed between the third rotating rod and the rotating seat, the latch tooth is meshed with the second spur gear, and a plurality of limit plates are fixedly connected to the outer wall of the gear seat, and each of the limit plates is attached to one side of the latch tooth.

[0011] As a further solution of the present invention: the contraction assembly includes a first spur gear fixedly connected to the outer wall of the first rotating rod, spur racks are meshed on both sides of the first spur gear, and one end of the two spur racks respectively penetrates to the outside of the cylinder and abuts against the inner side of one of the discs.

[0012] As a further scheme of the present invention: the suction reflux assembly includes a first connecting pipe fixedly connected to the water outlet of the cleaning cover, a processing shell is fixedly connected at both ends of the inner side of the outer shell, the processing shell is provided with four water inlets, and a first one-way valve is installed on the inner side of each of the water inlets, a suction pump is installed at the water outlet of the outer shell, a cleaning shell is fixedly connected at both ends of the outer shell, a cleaning bin is threadedly connected to the inner side of the cleaning shell, a second filter plate is fixedly connected to one end of the cleaning bin, a second one-way valve is installed at the drain outlet of the cleaning shell, and one end of the second one-way valve passes through the interior of the outer shell, a second connecting pipe is installed at the water outlet of the suction pump, and one end of the second connecting pipe passes through the water inlet of the cleaning shell, a groove communicating with the interior is provided on one side of the cleaning bin, and the second connecting pipe is initially arranged on one side of the groove.

[0013] As a further solution of the present invention: a conical ring is fixedly connected to one end of the first one-way valve, a conical surface is provided on the inner side of the conical ring, and a sealing ring is fixedly connected to the outer wall of the first connecting pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. By setting the cooperation of the first drive motor and other parts, an output end of the first drive motor drives a second rotating shaft to reel in a rope, and another first drive motor drives another second rotating shaft to release another rope, thereby pulling the connecting frame to drive the first filter plate to move horizontally. When the connecting frame moves horizontally to the leftmost end, the output ends of the two first drive motors rotate in the opposite direction, so that the connecting frame can be pulled to the rightmost end. The two first drive motors rotate forward and backward to achieve the traction of the connecting frame to move back and forth horizontally, and the impurities corroded on the inner wall of the shell are scraped off, so as to maintain the cleanliness of the inner wall of the container, thereby reducing the corrosion effect of ammonia on the inner wall of the shell, thereby increasing the service life of the shell, and reducing the generation of impurities from the source, thereby improving the overall practicality of the device;

[0016] 2. By setting up the cooperation of the cleaning cover and other parts, when the two spur racks move toward the inside of the cylinder, the first rotating rod can drive the second bevel gear to rotate, thereby driving the first bevel gear to rotate, thereby driving the gear seat to rotate, and then driving the latch gear to rotate. Under the action of the latch gear, the second spur gear is driven to rotate, thereby driving the second telescopic rod to rotate, and then driving the first telescopic rod to rotate, thereby driving the disc to rotate, thereby driving the cleaning cover to rotate, and when the cleaning cover rotates ninety degrees, the two cleaning covers are just attached to the outer wall of the connecting frame respectively, and a first filter plate cover is isolated and cleaned inside, so that the flow of liquid ammonia inside is not affected during the use of the device. When the first rotating rod rotates in the opposite direction to drive the gear seat to rotate, the gear seat will drive the latch tooth to rotate in a circle under the action of the second spur gear. When one side of the latch tooth contacts the second spur gear, it is blocked, so that the latch tooth drives the torsion spring to rotate through the third rotating rod, so that the second spur gear will not rotate during the reversal of the gear seat, so that the cleaning cover will not rotate when it is away from the connecting frame, and will rotate when the connecting frame is closed, so that the connecting frame in different areas can be closed, so as to facilitate the cleaning of residues in different areas, thereby ensuring the cleanliness of the area, thereby improving the overall practicality of the device;

[0017] 3. By arranging the cooperation of the suction pump and other parts, when the cleaning cover moves to one side of the conical ring, the first connecting pipe is driven to move synchronously at the same time, thereby driving the sealing ring to move toward the first connecting pipe. When the sealing ring contacts the conical ring, under the action of the conical surface on the inner side of the conical ring, the sealing ring shrinks and clings to the inner side of the first connecting pipe and the conical ring, thereby sealing the two. When the connecting frame moves to the leftmost end, the suction pump is started, and the suction pump sucks the liquid ammonia containing impurities on the inner sides of the two cleaning covers into the inner side of the cleaning bin through. The second filter plate can filter the impurities on the inner side of the cleaning bin, and at the same time, the liquid nitrogen on the inner side of the cleaning bin flows back to the inner side of the outer shell, so that the impurities inside the outer shell can be sucked to the outside, so as to avoid the liquid ammonia containing a large amount of impurities during use. The reciprocating operation of the device can filter the liquid ammonia inside the outer shell in real time, thereby improving the cleanliness of the liquid ammonia during storage, and avoiding the outer shell from being severely corroded, thereby improving the overall practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 is a cross-sectional view of a housing of the present invention;

[0020] Figure 3 It is a schematic diagram of the local structure of the housing of the present invention;

[0021] Figure 4 It is a schematic diagram of the structure of the scraping mechanism of the present invention;

[0022] Figure 5 is a cross-sectional view of the connecting frame of the present invention;

[0023] Figure 6 It is a cross-sectional view of a cylinder of the present invention;

[0024] Figure 7 is a cross-sectional view of a first telescopic rod of the present invention;

[0025] Figure 8 It is a schematic diagram of the local structure of the inner side of the cylinder of the present invention;

[0026] Fig. 9 For the present invention Figure 8 Enlarged view of point A in the middle;

[0027] Fig.10 A cross-sectional view of a cleaning chamber of the present invention;

[0028] Fig.11 This is a schematic diagram of the installation of the cleaning bin of the present invention;

[0029] Fig.12 It is a schematic diagram of the connection between the conical ring and the first connecting pipe of the present invention.

[0030] In the figure: 1, housing; 201, connecting frame; 202, first filter plate; 203, protective shell; 204, first drive motor; 205, rope; 206, connecting seat; 207, first rotating shaft; 208, limiting groove; 209, limiting tooth; 210, second rotating shaft; 301, cylinder; 302, cleaning cover; 303, disc; 304, spur rack; 305, first spur gear; 306, first rotating rod; 307, second drive motor; 308, second rotating rod; 309, first bevel gear; 310, second bevel gear; 311, The first telescopic rod; 312, the second telescopic rod; 313, the tension spring; 314, the second spur gear; 315, the gear seat; 316, the rotating seat; 317, the third rotating rod; 318, the latch; 319, the torsion spring; 320, the limit plate; 321, the suspension bracket; 401, the processing shell; 402, the first one-way valve; 403, the conical ring; 404, the first connecting pipe; 405, the cleaning shell; 406, the suction pump; 407, the second connecting pipe; 408, the cleaning chamber; 409, the second one-way valve; 410, the second filter plate; 411, the sealing ring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention. Example 1

[0033] See also Figures 1 to 12 The present embodiment provides a liquid ammonia storage container for a pit-type nitriding furnace, comprising: a shell 1 and a scraping mechanism installed inside the shell 1 for cleaning the inner wall of the shell 1, the scraping mechanism comprising a connecting frame 201 arranged inside the shell 1, four first filter plates 202 are fixedly connected to the inner side of the connecting frame 201, the scraping mechanism also comprises a protective shell 203 fixedly connected to the bottom and top of the inner side of the shell 1, a first driving motor 204 is installed inside the protective shell 203, the output end of the first driving motor 204 is connected to a second rotating shaft 210, and the second rotating shaft 21 0 is rolled up with a rope 205, one end of the two ropes 205 is fixedly connected to the two sides of the connecting frame 201 respectively, the inner side of the shell 1 is fixedly connected to two connecting seats 206, the inner sides of the two connecting seats 206 are rotatably connected to a first rotating shaft 207, and the rope 205 is attached to the first rotating shaft 207, one side of the connecting frame 201 is fixedly connected to a limiting tooth 209, the inner side of the shell 1 is provided with a limiting groove 208 matching the limiting tooth 209, and the first filter plate 202 is slidably connected to the shell 1 through the limiting tooth 209 fixedly connected to one side;

[0034] The first drive motor 204 is controlled by a PLC controller, and the first drive motor 204 can be controlled to start intermittently. The PLC controller controls the start of two first drive motors 204. The output end of one first drive motor 204 drives a second rotating shaft 210 to reel in a rope 205, and the other first drive motor 204 drives another second rotating shaft 210 to release another rope 205, thereby pulling the connecting frame 201 to drive the first filter plate 202 to move laterally. When the connecting frame 201 moves laterally to the leftmost end, the output ends of the two first drive motors 204 rotate in the opposite direction, so that the connecting frame 201 can be pulled to the rightmost end. The two first drive motors 204 rotate forward and reversely to achieve the traction of the connecting frame 201 to move back and forth laterally, and the impurities corroded on the inner wall of the outer shell 1 are scraped off, thereby maintaining the cleanliness of the inner wall of the container, thereby reducing the corrosion effect of ammonia on the inner wall of the outer shell 1, thereby improving the service life of the outer shell 1, and at the same time reducing the generation of impurities from the source, thereby improving the overall practicality of the device. Example 2

[0035] The partition collector is located on both sides of the connecting frame 201 and is used to remove impurities attached to the first filter plate 202. The partition collector includes a cylinder 301 fixedly connected to the inner side of the first filter plate 202. Cleaning covers 302 are arranged on both sides of the cylinder 301, and the two cleaning covers 302 are respectively located on both sides of a connecting frame 201. Two hanging frames 321 are fixedly connected to the inner side of the cylinder 301. The inner sides of the two hanging frames 321 are rotatably connected to a second telescopic rod 312. The outer walls of the two second telescopic rods 312 are slidably connected to a first telescopic rod 311. One end of the two first telescopic rods 311 penetrates the outer wall of the cylinder 301 and is fixedly connected to a disc 303, and the disc 303 is fixedly connected to the cleaning cover 302. A limit plate 320 is rotatably connected to both ends of the cylinder 301, the first telescopic rod 311 is slidably connected to the limit plate 320, a tension spring 313 is installed between the limit plate 320 and the disk 303, a contraction component for driving the two disks 303 to contract is arranged between the two disks 303, the outer wall of the second telescopic rod 312 is fixedly connected to the limit block, the inner side of the first telescopic rod 311 is provided with a limit guide groove matching the limit block, the second telescopic rod 312 is slidably connected to the first telescopic rod 311 through the limit blocks fixedly connected on both sides, the partition collector also includes a rotating seat 316 fixedly connected to the inner side of the cylinder 301, a second drive motor 307 is installed on one side of the rotating seat 316, and the output end of the second drive motor 307 is connected to the first A rotating rod 306, one end of the first rotating rod 306 is fixedly connected to the second bevel gear 310, the inner side of the suspension frame 321 is rotatably connected to the second rotating rod 308, the outer wall of the second rotating rod 308 is fixedly connected to the first bevel gear 309 meshing with the second bevel gear 310, one end of the two second telescopic rods 312 are fixedly connected to a second spur gear 314, the outer wall of the second rotating rod 308 is fixedly connected to two gear seats 315, each gear seat 315 is arranged on one side of a second spur gear 314, the outer wall of the gear seat 315 is fixedly connected to a plurality of rotating seats 316, the plurality of rotating seats 316 are equidistantly distributed around the outer wall of the gear seat 315, and a latch tooth 318 is arranged on the inner side of each rotating seat 316. One end of 318 is fixedly connected to the third rotating rod 317, and one end of the third rotating rod 317 penetrates the outer wall of the rotating seat 316 and is rotatably connected to the rotating seat 316, a torsion spring 319 is installed between the third rotating rod 317 and the rotating seat 316, the latch tooth 318 is meshed with the second spur gear 314, the outer wall of the gear seat 315 is fixedly connected to a plurality of limit plates 320, and each limit plate 320 is affixed to one side of a latch tooth 318, the contraction component includes a first spur gear 305 fixedly connected to the outer wall of the first rotating rod 306, and spur racks 304 are meshed on both sides of the first spur gear 305, and one end of the two spur racks 304 respectively penetrates the outside of the cylinder 301 and abuts against the inner side of a disc 303, the suction reflux component,Located at both ends of the shell 1, it is used to cooperate with the partition collector to discharge impurities. The suction reflux component includes a first connecting pipe 404 fixedly connected to the water outlet of the cleaning cover 302. Both ends of the inner side of the shell 1 are fixedly connected to a processing shell 401. The processing shell 401 is provided with four water inlets, and a first one-way valve 402 is installed inside each water inlet. A suction pump 406 is installed at the water outlet of the shell 1. Both ends of the shell 1 are fixedly connected to a cleaning shell 405. The inner side of the cleaning shell 405 is threadedly connected to a cleaning bin 408. One end of the cleaning bin 408 is fixedly connected to a second filter plate 410. A second one-way valve 409 is installed at the drain port of the cleaning shell 405, and one end of the second one-way valve 409 penetrates into the interior of the shell 1, a second connecting pipe 407 is installed at the water outlet of the suction pump 406, and one end of the second connecting pipe 407 penetrates into the water inlet of the cleaning shell 405, and a groove communicating with the interior is opened on one side of the cleaning chamber 408, and the second connecting pipe 407 is initially arranged on one side of the groove, one end of the first one-way valve 402 is fixedly connected to a conical ring 403, the inner side of the conical ring 403 is provided with a conical surface, and the outer wall of the first connecting pipe 404 is fixedly connected to a sealing ring 411;,

[0036] The second drive motor 307 is controlled by a PLC controller, and the second drive motor 307 can be controlled to start intermittently. When the connecting frame 201 moves from the rightmost end to the leftmost end, the liquid nitrogen in the moving process is filtered through the first filter plate 202, so that impurities can be attached to the first filter plate 202. When the connecting frame 201 moves to the leftmost end, the two first drive motors 204 stop running. When the connecting frame 201 is close to the leftmost end, the second drive motor 307 is started, and the output end of the second drive motor 307 drives the first rotating rod 306 to rotate, thereby driving the first spur gear 305 to rotate, thereby driving the two spur racks 304 to move inside the cylinder 301, so that the disc 303 moves to one side of the cylinder 301 under the action of the tension spring 313, and when the two cleaning covers 302 stick to the cylinder 301, the cleaning cover 302 moves to the maximum position at this time, thereby closing one first filter plate 202, so as to facilitate its cleaning, and at the same time, it can prevent the residue from falling into the liquid nitrogen during cleaning, thereby improving the overall practicality of the device;

[0037] When the two spur racks 304 move toward the inside of the cylinder 301, the first rotating rod 306 can drive the second bevel gear 310 to rotate, thereby driving the first bevel gear 309 to rotate, thereby driving the gear seat 315 to rotate, and then driving the latch gear 318 to rotate. Under the action of the latch gear 318, the second spur gear 314 is driven to rotate, thereby driving the second telescopic rod 312 to rotate, and then driving the first telescopic rod 311 to rotate, thereby driving the disc 303 to rotate, thereby driving the cleaning cover 302 to rotate, and when the cleaning cover 302 rotates ninety degrees, the two cleaning covers 302 are respectively attached to the outer wall of the connecting frame 201, covering a first filter plate 202 inside for isolation and cleaning, so that the flow of liquid ammonia inside is not affected during the use of the device. When the gear seat 315 is rotated in the reverse direction, the gear seat 315 will drive the latching tooth 318 to rotate in a circle under the action of the second spur gear 314. When one side of the latching tooth 318 contacts the second spur gear 314, it is blocked, so that the latching tooth 318 drives the torsion spring 319 to rotate through the third rotating rod 317, so that the second spur gear 314 will not rotate during the reversal of the gear seat 315, so that the cleaning cover 302 will not rotate when it is away from the connecting frame 201, and will rotate when the connecting frame 201 is closed, so that the connecting frame 201 in different areas can be closed, so as to facilitate the cleaning of residues in different areas, thereby ensuring the cleanliness of the area, thereby improving the overall practicality of the device;

[0038] Four first one-way valves 402 are provided, and each first one-way valve 402 is aligned with the first connecting pipe 404 after rotating ninety degrees. The two cleaning covers 302 will be closed when the connecting frame 201 approaches the leftmost end. After the two cleaning covers 302 are respectively attached to the outer wall of the connecting frame 201, the connecting frame 201 will continue to move to the leftmost end. When the cleaning cover 302 moves toward the side of the conical ring 403, it also drives the first connecting pipe 404 to move synchronously, thereby driving the sealing ring 411 to move toward the first connecting pipe 404. When the sealing ring 411 contacts the conical ring 403, the sealing ring 411 is contracted and tightly attached to the first connecting pipe 404 and the conical ring 403 under the action of the conical surface inside the conical ring 403. The inner side of the housing 1 is sealed. When the connecting frame 201 moves to the leftmost end, the suction pump 406 is started. The suction pump 406 sucks the liquid ammonia containing impurities inside the two cleaning covers 302 into the inner side of the cleaning chamber 408. The second filter plate 410 can filter the impurities inside the cleaning chamber 408. At the same time, the liquid nitrogen inside the cleaning chamber 408 flows back to the inner side of the housing 1, so that the impurities inside the housing 1 can be sucked to the outside, and the liquid ammonia can be prevented from containing a large amount of impurities during use. The reciprocating operation of the device can filter the liquid ammonia inside the housing 1 in real time, thereby improving the cleanliness of the liquid ammonia during storage, and preventing the housing 1 from being corroded, thereby improving the overall practicality of the device.

[0039] When there are too many impurities inside the cleaning bin 408, the staff can regularly rotate the cleaning bin 408 to remove the cleaning bin 408 from the inside of the cleaning shell 405, thereby cleaning the impurities in the cleaning bin 408, thereby ensuring the reuse of the device and improving the overall practicality of the device.

[0040] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A liquid ammonia storage container for a pit-type nitriding furnace, characterized in that: include: A housing (1) and a scraping mechanism installed inside the housing (1) for cleaning the inner wall of the housing (1), the scraping mechanism comprising a connecting frame (201) arranged inside the housing (1), and four first filter plates (202) are fixedly connected to the inner side of the connecting frame (201); Partition collectors, located on both sides of the connecting frame (201), and used to remove impurities attached to the first filter plate (202); Suction reflux components, located at both ends of the housing (1), and used to cooperate with the partition collector to discharge impurities; The partition collector comprises a cylinder (301) fixedly connected to the inner side of the first filter plate (202); cleaning covers (302) are arranged on both sides of the cylinder (301); and the two cleaning covers (302) are respectively located on both sides of a connecting frame (201); the inner side of the cylinder (301) is fixedly connected to two hanging frames (321); the inner sides of the two hanging frames (321) are rotatably connected to a second telescopic rod (312); the outer walls of the two second telescopic rods (312) are slidably connected to a first telescopic rod (311); and the two first telescopic rods (312) are slidably connected to the outer walls of the two first telescopic rods (311). One end of the retractable rod (311) penetrates through the outer wall of the cylinder (301) and is fixedly connected to a disk (303), and the disk (303) is fixedly connected to the cleaning cover (302), and two ends of the cylinder (301) are rotatably connected to a limit plate (320), the first telescopic rod (311) is slidably connected to the limit plate (320), a tension spring (313) is installed between the limit plate (320) and the disk (303), and a retracting component for driving the two disks (303) to retract is arranged between the two disks (303); The partition collector further comprises a rotating seat (316) fixedly connected to the inner side of the cylinder (301); a second drive motor (307) is installed on one side of the rotating seat (316); an output end of the second drive motor (307) is connected to a first rotating rod (306); one end of the first rotating rod (306) is fixedly connected to a second bevel gear (310); a second rotating rod (308) is rotatably connected to the inner side of the suspension frame (321); a first bevel gear (309) meshing with the second bevel gear (310) is fixedly connected to the outer wall of the second rotating rod (308); one end of each of the two second telescopic rods (312) is fixedly connected to a second spur gear (314); and the outer wall of the second rotating rod (308) is fixedly connected to two gear seats (315); each of the gear seats (315) is provided with a second spur gear (314). ), the outer wall of the gear seat (315) is fixedly connected to a plurality of rotating seats (316), the plurality of rotating seats (316) are equidistantly distributed around the outer wall of the gear seat (315), the inner side of each rotating seat (316) is provided with a latch (318), one end of the latch (318) is fixedly connected to a third rotating rod (317), and one end of the third rotating rod (317) penetrates through the outer wall of the rotating seat (316) and is rotatably connected to the rotating seat (316), a torsion spring (319) is installed between the third rotating rod (317) and the rotating seat (316), the latch (318) is meshed with the second spur gear (314), the outer wall of the gear seat (315) is fixedly connected to a plurality of limit plates (320), and each limit plate (320) is attached to one side of a latch (318); The contraction assembly comprises a first spur gear (305) fixedly connected to the outer wall of the first rotating rod (306), spur racks (304) are meshed on both sides of the first spur gear (305), and one end of the two spur racks (304) respectively penetrates the outside of the cylinder (301) and abuts against the inner side of one of the discs (303); The suction reflux assembly comprises a first connecting pipe (404) fixedly connected to the water outlet of the cleaning cover (302); a processing shell (401) is fixedly connected to both ends of the inner side of the outer shell (1); the processing shell (401) is provided with four water inlets, and a first non-return valve (402) is installed on the inner side of each water inlet; a suction pump (406) is installed at the water outlet of the outer shell (1); a cleaning shell (405) is fixedly connected to both ends of the outer shell (1); a cleaning chamber (408) is threadedly connected to the inner side of the cleaning shell (405); and the cleaning chamber (408) is threadedly connected to the inner side of the cleaning chamber (408). 08) is fixedly connected to a second filter plate (410), a second one-way valve (409) is installed at the drain outlet of the cleaning shell (405), and one end of the second one-way valve (409) penetrates into the interior of the outer shell (1), a second connecting pipe (407) is installed at the water outlet of the suction pump (406), and one end of the second connecting pipe (407) penetrates into the water inlet of the cleaning shell (405), and a groove communicating with the interior is opened on one side of the cleaning chamber (408), and the second connecting pipe (407) is initially arranged on one side of the groove.

2. The liquid ammonia storage container of the pit type nitriding furnace according to claim 1, characterized in that: The scraping mechanism further comprises a protective shell (203) fixedly connected to the bottom and top of the inner side of the outer shell (1); a first driving motor (204) is installed on the inner side of the protective shell (203); an output end of the first driving motor (204) is connected to a second rotating shaft (210); a rope (205) is rolled up on the outer wall of the second rotating shaft (210); one end of the two ropes (205) are respectively fixedly connected to two sides of the connecting frame (201); two connecting seats (206) are fixedly connected to the inner side of the outer shell (1); the inner sides of the two connecting seats (206) are both rotatably connected to a first rotating shaft (207), and the rope (205) is attached to the first rotating shaft (207).

3. The liquid ammonia storage container of the pit type nitriding furnace according to claim 2, characterized in that: One side of the connecting frame (201) is fixedly connected with a limiting tooth (209), the inner side of the outer shell (1) is provided with a limiting groove (208) matching the limiting tooth (209), and the first filter plate (202) is slidably connected to the outer shell (1) via the limiting tooth (209) fixedly connected to one side.

4. The liquid ammonia storage container of the pit type nitriding furnace according to claim 1, characterized in that: The outer wall of the second telescopic rod (312) is fixedly connected to a limit block, the inner side of the first telescopic rod (311) is provided with a limit guide groove matching the limit block, and the second telescopic rod (312) is slidably connected to the first telescopic rod (311) via the limit blocks fixedly connected on both sides.

5. The liquid ammonia storage container of the pit type nitriding furnace according to claim 1, characterized in that: One end of the first one-way valve (402) is fixedly connected to a conical ring (403), the inner side of the conical ring (403) is provided with a conical surface, and the outer wall of the first connecting pipe (404) is fixedly connected to a sealing ring (411).

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