A fully automatic lead-enamelling device and process for pressure vessels

Abstract

The embodiment of the present invention provides a fully automatic lead-enamelling device and process for pressure vessels, which relates to the field of lead-enamelling technology. It includes a container body to be processed, a mounting frame, a scraper and a traction assembly. The mounting frame is an annular frame, and a plurality of rollers are arranged on the circumference of the mounting frame, and the plurality of rollers are used to contact the inner wall or outer wall of the container body; a holding box is arranged on the mounting frame and is used to hold the lead liquid; the scraper is annular, and the scraper is connected to the mounting frame and is located at the bottom of the mounting frame. The scraper is hollow, and a discharge port is opened on the scraper toward the side of the container body. The scraper is connected to the holding box, and a gap is left between the scraper and the container body for the lead liquid to flow out; the traction assembly is arranged at one end of the container body, and the traction assembly is connected to the mounting frame, and is used to drive the mounting frame to move along the container body. The present application has the effect of shortening the time consumption of lead-enamelling processing and improving the efficiency of lead-enamelling processing.

Description

Technical Field

[0001] The invention relates to the technical field of lead-enameling, and in particular to a fully automatic lead-enameling device and process for a pressure vessel. Background Art

[0002] Lead lining is an anti-corrosion process. After heating and melting the lead plate or lead strip, it is evenly covered on the surface of the equipment to be processed to form a dense lead protective layer. During the use of pressure vessels, the surface of the pressure vessels is usually lead-lined to improve the corrosion resistance of the pressure vessels and improve the susceptibility to corrosion when the pressure vessels are exposed to various corrosive media during use. Especially for the inner wall of the pressure vessel, the lead lining process can fill the tiny defects on the inner wall of the pressure vessel and improve the sealing performance of the pressure vessel.

[0003] At present, when the lead plating process is carried out on the pressure vessel, workers usually apply the lead liquid evenly to the surface of the pressure vessel. When the lead plating process is carried out on the inner wall of the pressure vessel, workers are often required to drill into the pressure vessel to operate. This makes the overall lead plating process of the pressure vessel time-consuming and the processing efficiency is low. Summary of the invention

[0004] The purpose of the present invention includes, for example, providing a fully automatic lead-plating device and process for pressure vessels, which can shorten the time consumption of lead-plating processing of pressure vessels and improve the efficiency of lead-plating processing.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In one aspect, the present invention provides a fully automatic lead-enamelling device for a pressure vessel, comprising a vessel body to be processed, and:

[0007] A mounting frame, the mounting frame is an annular frame, and a plurality of rollers are arranged on the circumference of the mounting frame, and the plurality of rollers are used to abut against the inner wall or the outer wall of the container body;

[0008] A containing box, the containing box being arranged on the mounting frame and used for containing the lead liquid;

[0009] A scraper, the scraper is annular, the scraper is connected to the mounting frame and is located at the bottom of the mounting frame, the scraper is hollow, and a discharge port is opened on the side of the scraper facing the container body, the scraper is connected to the containing box, and a gap is left between the scraper and the container body for the lead liquid to flow out;

[0010] A traction assembly is arranged at one end of the container body, and the traction assembly is connected to the mounting frame to drive the mounting frame to move along the container body.

[0011] Optionally, a heating element is provided on the containing box, and the heating element is used to heat the lead liquid in the containing box.

[0012] Optionally, the traction assembly includes a winch, which is arranged at the end of the container body. A pull rope is provided on the winch, and the pull rope is connected to the mounting frame.

[0013] Optionally, a plurality of connecting rods are arranged on the mounting frame along the diameter direction of the mounting frame, and the plurality of rollers are arranged at one end of the plurality of connecting rods in a one-to-one correspondence.

[0014] Optionally, it also includes a telescopic component, which is arranged on the connecting rod and is used to adjust the position of the roller on the connecting rod so that a plurality of rollers can be pressed against the container bodies of different sizes; wherein the scraper is detachably arranged on the mounting frame.

[0015] Optionally, the telescopic assembly includes a sleeve rod, the sleeve rod is a hollow rod body with an opening at one end, the sleeve rod is sleeved on the connecting rod, and the roller is arranged at one end of the sleeve rod away from the container body;

[0016] The connecting rod comprises an inner end close to the axis of the mounting frame and an outer end away from the axis of the mounting frame, and the sleeve rod is sleeved on the inner end or the outer end;

[0017] A self-locking member is provided on the sleeve rod. When the sleeve rod is sleeved on the connecting rod and the roller contacts the container body, the self-locking member is used to limit and fix the sleeve rod.

[0018] Optionally, the self-locking part includes a steel ball and a magnet block, and two connected self-locking grooves are provided on the inner wall of the sleeve rod. The bottom walls of the self-locking grooves are inclined, and the shallower ends of the two self-locking grooves are close to each other. The steel balls are rolled on the bottom walls of the self-locking grooves, and the steel balls can move between the two self-locking grooves; the magnet block is embedded between the two self-locking grooves, and the magnet block makes the steel balls always have a tendency to move toward the middle of the two self-locking grooves.

[0019] Optionally, both the inner end and the outer end of the connecting rod are surrounded by unlocking grooves for accommodating the steel balls.

[0020] In another aspect, the present invention provides a process for lead-plating a pressure vessel, comprising the following steps:

[0021] The pressure vessel to be processed is placed vertically. When the inner wall of the pressure vessel is lead-lined, a mounting frame having an outer diameter smaller than the inner diameter of the pressure vessel is selected and the mounting frame is placed in the pressure vessel;

[0022] When the outer wall of the pressure vessel is lead-lined, a mounting frame having an inner diameter larger than the outer diameter of the pressure vessel is selected, and the mounting frame is sleeved outside the pressure vessel;

[0023] Pour molten lead into the holding box;

[0024] The mounting frame is driven to move along the length direction of the pressure vessel by using the traction assembly;

[0025] During the movement of the mounting frame, the molten lead liquid flows from the containing box into the scraper, and flows into the container body through the gap of the scraper. At the same time, the scraper evenly spreads the lead liquid on the container body when it moves.

[0026] Optionally, when the inner wall of the pressure vessel is lead-lined, the discharge port is opened on the outer annular wall surface of the scraper; when the outer wall of the pressure vessel is lead-lined, the discharge port is opened on the inner annular wall surface of the scraper.

[0027] The beneficial effects of the present invention include:

[0028] When the outer wall of the container body is lead-lined, the annular mounting frame is sleeved outside the container body; when the inner wall of the container body is lead-lined, the mounting frame is placed inside the container body, and the mounting frame is driven by the traction assembly to move along the container body. During the movement of the mounting frame, the lead liquid flows from the containing box to the scraper, and flows out from the discharge port on the scraper to the container body, and is evenly smeared on the container body as the scraper moves, thereby realizing automatic lead-lined treatment of the container body;

[0029] When lead-plating is performed on pressure vessels of different sizes, the position of the roller on the connecting rod is adjusted by a sleeve rod so that a plurality of rollers come into contact with the container body, and a scraper of corresponding size is selected, thereby enabling lead-plating of pressure vessels of different sizes and improving the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 This is a schematic structural diagram of a lead-plating device for lead-plating the outer wall of a pressure vessel in an embodiment of the present application;

[0032] Figure 2 This is a schematic structural diagram of a lead-plating device for lead-plating the inner wall of a pressure vessel in an embodiment of the present application;

[0033] Figure 3This is a schematic diagram of the structure of the telescopic assembly in the initial state in an embodiment of the present application;

[0034] Figure 4 This is a schematic diagram of the telescopic assembly structure when the sleeve rod is inserted into the connecting rod in the embodiment of the present application;

[0035] Figure 5 This is a schematic diagram of the telescopic assembly structure when the sleeve rod is inserted into place in the embodiment of the present application;

[0036] Figure 6 This is a schematic diagram of the telescopic assembly structure when adjusting the position of the sleeve rod in an embodiment of the present application.

[0037] Icons: 100-container body; 200-mounting frame; 210-roller; 220-connecting rod; 221-outer end; 222-inner end; 223-unlocking groove; 300-containing box; 310-heating element; 400-scraper; 410-discharge port; 500-traction assembly; 510-winch; 520-pull rope; 600-telescopic assembly; 610-rod; 611-self-locking groove; 621-steel ball; 622-magnet block. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They 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 a limitation on the present invention.

[0042] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0043] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0044] Lead enamelling is a process that evenly covers the surface of the equipment to be processed with a layer of molten lead liquid, so that after the lead liquid solidifies, a dense protective layer can be formed on the surface of the equipment to be processed. During the use of pressure vessels, they will be exposed to various corrosive liquids. Therefore, the surface of the pressure vessel, especially the inner wall of the pressure vessel, is generally lead-lined to improve the corrosion resistance of the pressure vessel.

[0045] Pressure vessels are generally hollow cylindrical. When the outer wall of a pressure vessel is lead-lined, workers need to evenly apply the lead liquid to the outer wall of the pressure vessel; when the inner wall of a pressure vessel is lead-lined, workers need to drill into the pressure vessel to operate. The overall lead-line processing of the pressure vessel is time-consuming and inefficient. At the same time, when workers manually perform the lead-line processing, they also face safety risks such as high temperature burns and lead poisoning.

[0046] In view of the above situation, the present application provides a fully automatic lead-plating device and process for pressure vessels, which can automatically plate lead on the inner and outer walls of the pressure vessel without the need for workers to manually plate lead. Figure 1-Figure 6 , the specific structure, implementation principle, processing flow and beneficial effects of a fully automatic lead-enamelling device and process for pressure vessels in this application are introduced in detail.

[0047] On the one hand, please refer to Figure 1-Figure 2The embodiment of the present application provides a fully automatic lead-plating device for pressure vessels, which specifically includes a container body 100, a mounting frame 200, a containing box 300, a scraper 400 and a traction assembly 500. The container body 100 is a pressure vessel to be processed, which is a hollow cylindrical tank. The mounting frame 200 is an annular frame, and a plurality of rollers 210 are arranged on the mounting frame 200. The mounting frame 200 can be designed to have different sizes. When the inner wall of the container body 100 is lead-plated, the mounting frame 200 is coaxially placed in the container body 100, at which time the roller 210 is located on the outside of the mounting frame 200, and the roller 210 is in conflict with the inner wall of the container body 100. The lead-plating device can also lead-plated the outer wall of the container body 100, at which time the annular mounting frame 200 can be coaxially sleeved outside the container body 100, at which time the roller 210 is located on the inside of the mounting frame 200, and the roller 210 is in conflict with the outer wall of the container body 100. The containing box 300 is disposed on the mounting frame 200 , and the containing box 300 is used to contain the lead liquid. In the present embodiment, the containing box 300 is an annular box body, and the containing box 300 is located within the frame of the mounting frame 200 ; in other embodiments, the containing box 300 may also be an arc-shaped box body disposed on the mounting frame 200 .

[0048] Please refer to Figure 1 and Figure 2 The scraper 400 is annular and is mounted at the bottom of the mounting frame 200. A discharge port 410 is provided on the side of the scraper 400 facing the container body 100, and the scraper 400 is connected to the receiving box 300. The lead liquid in the receiving box 300 continuously flows into the scraper 400 and flows out through the discharge port 410 on the scraper 400. A gap is left between the scraper 400 and the container body 100, and the design width of the gap is the design thickness of the lead layer. The lead liquid flows out of the scraper 400 and enters the gap, and is evenly applied to the container body 100 as the scraper 400 moves. The traction assembly 500 is arranged at one end of the container body 100, and the traction assembly 500 is connected to the mounting frame 200, and is used to drive the mounting frame 200 to move along the length direction of the container body 100, so that the lead liquid can be evenly applied to the container body 100 during the movement of the mounting frame 200.

[0049] It should be noted that when the outer wall of the container body 100 is lead-lined, Figure 1 , select a mounting frame 200 whose inner diameter is larger than the outer diameter of the container body 100, and set the mounting frame 200 outside the container body 100. The inner diameter of the scraper 400 is larger than the outer diameter of the container body 100, and the discharge port 410 on the scraper 400 is opened on the inner side of the scraper 400. When the inner wall of the container body 100 is lead-lined, Figure 2, select a mounting frame 200 whose outer diameter is smaller than the inner diameter of the container body 100 , the mounting frame 200 is located inside the container body 100 , the outer diameter of the scraper 400 is smaller than the inner diameter of the container body 100 , and the discharge port 410 on the scraper 400 is opened on the outer side of the scraper 400 .

[0050] Please refer to 1 and Figure 2 In order to prevent the lead liquid from solidifying due to the temperature drop after being stored in the container box 300 for a long time, in some optional embodiments, a heating element 310 is provided on the container box 300 to heat the lead liquid in the container box 300 so that the lead liquid in the container cavity is always kept in a molten state. In this embodiment, the heating element 310 is an induction coil, which is arranged outside the container box 300. By using the principle of electromagnetic induction, the induction coil generates an alternating magnetic field after high-frequency alternating current is passed through it, so that an induced current is generated inside the lead liquid to generate heat. In other embodiments, the heating element 310 can also be a resistance wire located in the container box 300.

[0051] Please refer to Figure 1 and Figure 2 In some optional embodiments, the traction assembly 500 includes a winch 510, the container body 100 is placed in a vertical state, the winch 510 is installed at the top of the container body 100, and a pull rope 520 is arranged on the winch 510, and the pull rope 520 extends toward the mounting frame 200 and is connected to the mounting frame 200. The winch 510 drives the pull rope 520 to be wound, thereby driving the winch 510 to move along the length direction of the container body 100. Further, in this embodiment, in order to prevent the pull rope 520 from breaking due to heat, the pull rope 520 is a steel wire rope.

[0052] In the actual process of lead-plating pressure vessels, it involves the scenario of lead-plating pressure vessels of different sizes and models, and the inner and outer diameters of different pressure vessels are different. Since the size of the mounting frame 200 is fixed, when lead-plating pressure vessels of different sizes, it is necessary to select mounting frames 200 of different sizes for the production of pressure vessels of different sizes, which makes the operation of lead-plating pressure vessels of different sizes cumbersome and costly.

[0053] In order to solve the above problems, in order to make the lead-enameling device capable of lead-enameling pressure vessels of different sizes, improve its applicability and reduce the processing cost. Figure 3-Figure 6The fully automatic lead-plating device also includes a telescopic assembly 600. A plurality of connecting rods 220 are mounted around the mounting frame 200, and the length direction of the connecting rods 220 is along the diameter direction of the mounting frame 200. The roller 210 is mounted at one end of the connecting rod 220. When the mounting frame 200 is sleeved outside the container body 100, the roller 210 is arranged at one end of the connecting rod 220 close to the axis of the mounting frame 200; when the mounting frame 200 is located inside the container body 100, the roller 210 is arranged at one end of the connecting rod 220 away from the axis of the mounting frame 200. The telescopic assembly 600 is arranged on the connecting rod 220, and the telescopic assembly 600 is used to adjust the position of the roller 210 on the connecting rod 220, so that when the mounting frame 200 is adapted to container bodies 100 of different sizes, the plurality of rollers 210 can all contact the container body 100, which plays the effect of centering the mounting frame 200 and facilitating the driving of the mounting frame 200 to move. Furthermore, the scraper 400 is detachably connected to the bottom of the mounting frame 200 by bolts. When processing pressure vessels of different sizes, scrapers 400 of different sizes are selected, thereby facilitating lead plating of pressure vessels of different sizes.

[0054] For further information, please refer to Figure 3-Figure 6 The telescopic assembly 600 includes a sleeve rod 610 and a self-locking member. The sleeve rod 610 is a rectangular rod body with one end open. In this embodiment, the connecting rod 220 is divided into an inner end 222 close to the axis direction of the mounting frame 200 and an outer end 221 away from the axis direction of the mounting frame 200. The sleeve rod 610 can be slidably arranged on the inner end 222 of the connecting rod 220, and the connecting rod 220 can also be slidably arranged on the outer end 221 of the connecting rod 220. Therefore, when the inner wall and the outer wall of the container body 100 are lead-lined, the sleeve rod 610 can be adaptively sleeved on the inner end 222 or the outer end 221, so that the roller 210 is in conflict with the inner wall or the outer wall of the container body 100. The self-locking member is arranged on the sleeve rod 610, and the self-locking member is used to limit and fix the sleeve rod 610. When the roller 210 contacts the container body 100, the self-locking member fixes the sleeve rod 610, so that the multiple rollers 210 maintain a state of contact with the container body 100, thereby preventing the mounting frame 200 from being displaced in the radial direction of the container body 100 during the movement of the mounting frame 200, resulting in a change in the gap between the scraper 400 and the container body 100, thereby affecting the uniformity of the lead liquid applied to the container body 100.

[0055] Please refer to Figure 3-Figure 6In some optional embodiments, the self-locking member includes a steel ball 621 and a magnet block 622. Two self-locking grooves 611 are provided on the inner wall of the sleeve rod 610. The two self-locking grooves 611 are arranged opposite to each other. The cross-sectional shapes of the two self-locking grooves 611 are both triangular, that is, the bottom wall of the self-locking groove 611 is inclined. The shallow ends of the two self-locking grooves 611 are close to each other, the deep ends of the two self-locking grooves 611 are far away from each other, and the two self-locking grooves 611 are connected. The steel ball 621 is slidably arranged in the self-locking groove 611, and the steel ball 621 can roll in the two self-locking grooves 611. The magnet block 622 is embedded in the sleeve rod 610 and is located between the two self-locking grooves 611. The magnet block 622 always has an adsorption force on the steel ball 621, so that the magnet block 622 makes the steel ball 621 always have a tendency to move toward the middle of the two self-locking grooves 611. At the same time, when the steel ball 621 is located in the two self-locking grooves 611, the steel ball 621 always fits with the bottom wall of the self-locking groove 611 under the adsorption effect of the magnet block 622, and will not be separated from the self-locking groove 611. It should be clear that when the steel ball 621 is located in the middle of the two self-locking grooves 611, that is, at the shallowest position of the self-locking groove 611, the steel ball 621 partially protrudes from the inner wall of the sleeve rod 610. Further, the inner end 222 and the outer end 221 of the connecting rod 220 are both provided with an unlocking groove 223 around the connecting rod 220.

[0056] Combine the following Figure 3-Figure 6 , the process of lead plating the inner wall of the container body 100 is described in detail. When the mounting frame 200 is located inside the container body 100, the sleeve rod 610 is inserted and sleeved on the outer end 221 of the connecting rod 220.

[0057] Combination Figure 3 , Figure 3 It is a schematic diagram of the sleeve rod 610 being initially sleeved onto the outer end 221 . At this time, the steel ball 621 is located between the two self-locking grooves 611 , and a portion of the steel ball 621 protrudes from the inner wall of the sleeve rod 610 .

[0058] Combination Figure 4 , Figure 4This is a schematic diagram of the sleeve rod 610 being further sleeved onto the outer end 221. When the sleeve rod 610 is inserted into the outer end 221 of the connecting rod 220, the connecting rod 220 pushes the steel ball 621 into the self-locking groove 611 on one side close to the roller 210. At this time, the steel ball 621, under the action of the magnet block 622, always keeps one side in contact with the bottom wall of the self-locking groove 611 and the other side in contact with the outer end 221. At this time, when the sleeve rod 610 is further sleeved into the connecting rod 220, the steel ball 621 has a tendency to move toward the end with a deeper depth of the self-locking groove 611 under the action of friction, and the sleeve rod 610 can be sleeved onto the connecting rod 220. When the sleeve rod 610 is pulled out from the connecting rod 220 , the steel ball 621 tends to move toward the shallow end of the self-locking groove 611 under the action of friction. At this time, the steel ball 621 clamps the sleeve rod 610 on the sleeve rod 610 to prevent the sleeve rod 610 from falling off the connecting rod 220 .

[0059] Combination Figure 5 , Figure 5 Schematic diagram of the sleeve rod 610 being sleeved to the undetermined position on the outer end 221, along Figure 4 The sleeve rod 610 continues to move in the direction of the middle arrow until the two self-locking grooves 611 are connected and face the unlocking groove 223. At this time, the steel ball 621 can move between the two self-locking grooves 611, and the steel ball 621 is partially located in the unlocking groove 223. When the steel ball 621 is partially located in the unlocking groove 223, it is the waiting position of the sleeve rod 610. At this time, the sleeve rod 610 can move toward the container body 100 on the outer end 221, and can also move away from the container body 100.

[0060] Combination Figure 6 , Figure 6 FIG. 6 is a schematic diagram of the structure when the sleeve rod 610 is in an adjustment state. At this time, when the inner wall of the container body 100 of different sizes is lead-lined, the sleeve rod 610 is slid away from the mounting frame 200 on the outer end 221 of the connecting rod 220 (along the sleeve rod 610). Figure 6 The steel ball 621 moves in the direction of the arrow in the middle), and the steel ball 621 is pressed into the self-locking groove 611 away from the roller 210 under the resistance of the side wall of the unlocking groove 223. At this time, the principle is the same as Figure 4 The principle of inserting the middle sleeve rod 610 into the connecting rod 220 is the same, and the sleeve rod 610 can only move away from the mounting frame 200 on the connecting rod 220. Until the multiple sleeve rods 610 in the circumferential direction of the mounting frame 200 are moved the same distance, and the multiple rollers 210 are all in contact with the inner wall of the container body 100. At this time, the sleeve rod 610 cannot move toward the mounting frame 200, so that the multiple sleeve rods 610 fix the mounting frame 200 in the container body 100, so that the mounting frame 200 cannot move in the radial direction of the container body 100. By adjusting the position of the sleeve rod 610, the mounting frame 200 can be fixed to the container body 100 of different sizes.

[0061] In the process of lead plating of pressure vessels, since the lead liquid has the problem of solidification due to temperature drop during the transfer and output process, it is necessary to minimize the time consumption of various other processes in the process of lead plating to improve the problem of solidification of lead liquid affecting the lead plating effect. In this embodiment, by providing steel balls 621, magnet blocks 622 and self-locking grooves 611, the sleeve rod 610 can be quickly moved on the connecting rod 220. When the position of the sleeve rod 610 is adjusted, the sleeve rod 610 can achieve reverse self-locking while moving. When the roller 210 on the sleeve rod 610 conflicts with the outer wall of the container body 100, the sleeve rod 610 can be automatically self-locked and fixed, and there is no need to fix the sleeve rod 610 through other fixing mechanisms. The operation is convenient and fast, and the rapid adaptation of pressure vessels of different sizes is achieved, and the installation time of the mounting frame 200 is minimized. At the same time, when the sleeve rod 610 is damaged, a new sleeve rod 610 can be replaced and sleeved on the connecting rod 220. The replacement, maintenance and repair of the telescopic assembly 600 are convenient and fast, and the time consumption is short. In actual processing, the time consumption of replacing the telescopic assembly can be shortened, and the processing efficiency can be improved. Therefore, during the lead-enameling process, the installation time of the mounting frame 200 and the replacement and maintenance time of the telescopic assembly 600 are shortened, thereby reducing the possibility of solidification of the lead liquid during the processing process and improving the lead-enameling effect.

[0062] Furthermore, the telescopic assembly 600 in this embodiment has a simple structure and low manufacturing cost. It does not require a complex mechanical transmission structure, pneumatic or hydraulic structure to achieve adjustment and self-locking fixation of the sleeve rod 610, thereby reducing production costs.

[0063] When the outer wall of the container body 100 is lead-lined and the mounting frame 200 is located outside the container body 100, the sleeve rod 610 is sleeved to the inner end 222 of the connecting rod 220. The principle is the same as above. The sleeve rod 610 is first moved to a predetermined position, that is, the position where the connection between the two self-locking grooves 611 of the sleeve rod 610 is directly opposite to the unlocking groove 223. At this time, the sleeve rod 610 can be driven to move away from the mounting frame 200 until the multiple rollers 210 collide with the outer wall of the container body 100. At this time, the sleeve rod 610 cannot move toward the mounting frame 200 under the clamping of the steel ball 621, and then the sleeve rod 610 is installed outside the container body 100. When targeting container bodies 100 of different sizes, the sleeve rod 610 can be moved to different distances. Thereby, the mounting frame 200 can be applied to container bodies 100 of different sizes, thereby improving the scope of application.

[0064] The principle of a fully automatic lead-plating device for pressure vessels in the present embodiment is as follows: when the inner wall of the container body 100 is lead-plated, the mounting frame 200 is placed in the container body 100, the sleeve rod 610 is moved until the roller 210 contacts the inner wall of the container body 100, and then the mounting frame 200 is fixed to the container body 100. At this time, the traction assembly 500 drives the mounting frame 200 to move along the length direction of the container body 100, and the lead liquid flows out from the discharge port 410 outside the scraper 400, and is scraped flat by the scraper 400, so that the lead liquid is evenly applied to the inner wall of the container body 100; when the inner wall of the container body 100 of different sizes is lead-plated, the sleeve rod 610 is moved until the roller 210 contacts the container body 100, the self-locking member limits and fixes the sleeve rod 610, and the scraper 400 of the corresponding size is replaced, so that the inner wall of the container body 100 of different sizes can be lead-plated.

[0065] When the outer wall of the container body 100 is lead-plated, the mounting frame 200 is sleeved outside the container body 100, the sleeve rod 610 is moved until the roller 210 contacts the outer wall of the container body 100, and then the mounting frame 200 is fixed to the outside of the container body 100. At this time, the traction assembly 500 drives the mounting frame 200 to move along the length direction of the container body 100, and the lead liquid flows out from the discharge port 410 on the inner side of the scraper 400, and is scraped flat by the scraper 400, so that the lead liquid is evenly applied to the outer wall of the container body 100; when the outer wall of the container body 100 of different sizes is lead-plated, the sleeve rod 610 is moved until the roller 210 contacts the outer wall of the container body 100, the self-locking part limits and fixes the sleeve rod 610, and the scraper 400 of the corresponding size is replaced, so that the outer wall of the container body 100 of different sizes can be lead-plated.

[0066] The container body 100 is lead-lined by the fully automatic lead-lined device, and there is no need for workers to manually apply lead liquid evenly to the container body 100, nor is there a need for workers to drill into the container body 100 to lead the inside of the container body 100, which shortens the lead-lined processing time, improves the lead-lined processing efficiency, and reduces the labor intensity of workers. Furthermore, it also avoids the occurrence of dangerous situations such as burns and lead poisoning when workers manually operate.

[0067] This embodiment also provides a pressure vessel lead enamelling process, comprising the following steps:

[0068] The container body 100 to be processed is placed vertically, and the inner and outer walls of the container body 100 are cleaned, polished, and roughened;

[0069] When the inner wall of the container body 100 is lead-lined, a mounting frame 200 having an outer diameter smaller than the inner diameter of the container body 100 is selected, and the mounting frame 200 is placed in the pressure vessel;

[0070] When the outer wall of the container body 100 is lead-lined, a mounting frame 200 having an inner diameter larger than the outer diameter of the container body 100 is selected, and the mounting frame 200 is sleeved outside the pressure container;

[0071] The position of the sleeve rod 610 on the connecting rod 220 is adjusted so that the roller 210 contacts the container body 100, and the self-locking member fixes the sleeve rod 610, thereby fixing the mounting frame 200 in the radial direction of the container body 100;

[0072] Select a scraper 400 that matches the size of the container body 100 and install the scraper 400 on the mounting frame 200;

[0073] The molten lead liquid is injected into the containing box 300, and the lead liquid in the containing box 300 is heated by the heating element 310;

[0074] The traction assembly 500 is used to drive the mounting frame 200 to move along the length direction of the pressure vessel;

[0075] During the movement of the mounting frame 200 , the molten lead liquid flows from the containing box 300 into the scraper 400 , and flows into the container body 100 through the gap of the scraper 400 . Meanwhile, the scraper 400 evenly spreads the lead liquid on the container body 100 when moving.

[0076] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A fully automatic lead-enamelling device for pressure vessels, characterized in that: including a container body to be processed, and A mounting frame, the mounting frame is an annular frame, and a plurality of rollers are arranged on the circumference of the mounting frame, and the plurality of rollers are used to abut against the inner wall or the outer wall of the container body; A containing box, the containing box being arranged on the mounting frame and used for containing the lead liquid; A scraper, the scraper is annular, the scraper is connected to the mounting frame and is located at the bottom of the mounting frame, the scraper is hollow, and a discharge port is opened on the side of the scraper facing the container body, the scraper is connected to the containing box, and a gap is left between the scraper and the container body for the lead liquid to flow out; A traction assembly, the traction assembly is arranged at one end of the container body, the traction assembly is connected to the mounting frame, and is used to drive the mounting frame to move along the container body; A plurality of connecting rods are arranged on the mounting frame along the diameter direction of the mounting frame, and the plurality of rollers are arranged one by one at one end of the plurality of connecting rods; It also includes a telescopic component, which is arranged on the connecting rod and is used to adjust the position of the roller on the connecting rod so that a plurality of rollers can be pressed against the container bodies of different sizes; Wherein, the scraper is detachably arranged on the mounting frame; The telescopic assembly comprises a sleeve rod, which is a hollow rod body with an opening at one end, and the sleeve rod is sleeved on the connecting rod, and the roller is arranged at one end of the sleeve rod away from the container body; The connecting rod comprises an inner end close to the axis of the mounting frame and an outer end away from the axis of the mounting frame, and the sleeve rod is sleeved on the inner end or the outer end; A self-locking member, wherein the self-locking member is arranged on the sleeve rod, and when the sleeve rod is sleeved on the connecting rod and the roller is in contact with the container body, the self-locking member is used to limit and fix the sleeve rod; The self-locking part includes a steel ball and a magnet block. Two connected self-locking grooves are provided on the inner wall of the sleeve rod. The bottom wall of the self-locking groove is inclined. The shallower ends of the two self-locking grooves are close to each other. The steel ball is rolled on the bottom wall of the self-locking groove and can move between the two self-locking grooves. The magnet block is embedded between the two self-locking grooves. The magnet block makes the steel ball always have a tendency to move toward the middle of the two self-locking grooves.

2. A fully automatic lead-plating device for pressure vessels according to claim 1, characterized in that: The containing box is provided with a heating element, and the heating element is used to heat the lead liquid in the containing box.

3. The fully automatic lead-plating device for pressure vessels according to claim 1 is characterized in that: The traction assembly includes a winch, which is arranged at the end of the container body. A pull rope is arranged on the winch, and the pull rope is connected to the mounting frame.

4. The fully automatic lead-plating device for pressure vessels according to claim 1 is characterized in that: The inner end and the outer end of the connecting rod are both surrounded by unlocking grooves for accommodating the steel balls.

5. A lead-enameling process for pressure vessels, based on the fully automatic lead-enameling device according to any one of claims 1 to 4, characterized in that: The following steps are involved: The pressure vessel to be processed is placed vertically. When the inner wall of the pressure vessel is lead-lined, a mounting frame having an outer diameter smaller than the inner diameter of the pressure vessel is selected and the mounting frame is placed in the pressure vessel; When the outer wall of the pressure vessel is lead-lined, a mounting frame having an inner diameter larger than the outer diameter of the pressure vessel is selected, and the mounting frame is sleeved outside the pressure vessel; Pour molten lead into the holding box; The mounting frame is driven to move along the length direction of the pressure vessel by using the traction assembly; During the movement of the mounting frame, the molten lead liquid flows from the containing box into the scraper, and flows into the container body through the gap of the scraper. At the same time, the scraper evenly spreads the lead liquid on the container body when it moves.

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