A polymerization inhibitor preparation apparatus

Abstract

This invention relates to the field of compound preparation apparatus, specifically to a polymerization inhibitor preparation apparatus, comprising a shell, a drying tube, a filter screen, a collection box, a grinding chamber, an air supply mechanism, and a vibration mechanism. The drying tube is disposed within the shell and is composed of a vertical tube and a bent tube connected in sequence. The drying tube has an S-shaped structure, with an inlet and an outlet at each end. The air supply mechanism can introduce hot air into the drying tube, allowing the hot air to flow from the inlet to the outlet. The direction of the hot air flow from the inlet to the outlet within the drying tube is referred to as the first direction. In this polymerization inhibitor preparation apparatus, the filter screen is inclinedly disposed within the bent tube. During operation, medium-sized particles are intercepted by the filter screen and fall downwards under the action of the vibration mechanism. Due to the inclined placement of the filter screen, as vibration continues, the medium-sized particles will continuously fall until they reach the grinding chamber, preventing them from remaining attached to the filter screen due to the hot air flow and thus preventing filter clogging.

Description

Technical Field

[0001] This invention relates to the field of compound preparation apparatus, and more specifically to a polymerization inhibitor preparation apparatus. Background Technology

[0002] Polymerization inhibitors are industrial additives typically used to prevent polymerization. Inhibitor molecules react with chain free radicals to form non-radical substances or low-activity free radicals that cannot initiate polymerization, thus terminating the polymerization. There are many types of polymerization inhibitors, including phenolic inhibitors such as hydroquinone and p-hydroxyanisole, quinone inhibitors such as p-benzoquinone and methylhydroquinone (THQ), and inorganic compound inhibitors such as ferric chloride, cuprous chloride, and copper sulfate.

[0003] Currently, in the production of inorganic compound polymerization inhibitors, cuprous chloride powder produced by wet process is widely used. However, the wet process produces ferrous chloride powder with irregular shape, severe powder agglomeration, poor dispersibility, easy moisture absorption, enrichment of surface hydroxyl groups, many catalytic by-products, and low catalytic efficiency.

[0004] Related technologies also employ methods that atomize molten cuprous chloride raw materials into spherical powder using high-pressure gas. However, the molten cuprous chloride tends to adhere to the inner wall of the drying device, affecting output. Chinese patent CN114832720B discloses an atomization drying device and method for powdered veterinary drugs. This method uses multiple external and internal protrusions and metal springs on an outer tube to vibrate and dislodge lumps adhering to the inner wall of the bent tube, allowing them to slide down to the lower tube. However, in practice, when a small amount of lumps moves onto the screen with the wind, although they may detach under the action of the striking component, the continuous wind force causes them to be blown back onto the screen, preventing them from falling smoothly. This ultimately leads to material accumulation on the filter screen, causing blockage. Summary of the Invention

[0005] This invention provides a polymerization inhibitor preparation apparatus to solve the problem that existing apparatuses cause material to accumulate on the filter screen and clog the screen during use.

[0006] The polymerization inhibitor preparation apparatus of the present invention adopts the following technical solution: A polymerization inhibitor preparation apparatus includes a shell, a drying tube, a filter screen, a collection box, a grinding chamber, an air supply mechanism, and a vibration mechanism; the drying tube is disposed inside the shell and is composed of a vertical tube and a bent tube connected in sequence. The drying tube has an S-shaped structure, and an inlet and an outlet are respectively provided at both ends of the drying tube; the air supply mechanism can introduce hot air into the drying tube, so that the hot air can flow from the inlet to the outlet. The direction in which the hot air flows from the inlet to the outlet in the drying tube is referred to as the first direction; a liquid inlet pipe is provided at one end of the inlet; one end of the liquid inlet pipe extends outwards. The outer shell is located at one end, and the other end is inside the drying tube. Material can enter through the liquid inlet pipe. The end of the liquid inlet pipe inside the drying tube is equipped with an atomizing nozzle, which can atomize the incoming liquid and spray it out, and solidify it into particles under the action of hot air. The filter screen is inclinedly set inside the bent tube, and the filter screen can allow particles with a diameter smaller than a first preset value to pass through. The lower wall of the middle part of the bent tube is connected to a grinding chamber, which can receive particles that have not passed through the filter screen. The grinding chamber is equipped with a grinding mechanism, which can grind the particles inside the grinding chamber. The vibration mechanism can make the drying tube vibrate.

[0007] Furthermore, the air supply mechanism includes an air inlet pipe and a hot air blower. An air inlet pipe is provided at one end of the inlet, and one end of the air inlet pipe extends out of the outer casing. The end of the air inlet pipe extending out of the outer casing is connected to the hot air blower. The other end of the air inlet pipe is connected to a drying pipe. Multiple air jets are connected to the side wall of the drying pipe, and the multiple air jets are connected to the air inlet pipe.

[0008] Furthermore, the grinding mechanism includes a grinding disc, a first motor, and an upper grinding plate; the first motor is used to drive the grinding disc to rotate, a material drop pipe is provided on the lower wall of the middle part of the bent tube, the upper grinding plate is installed on the lower end of the material drop pipe through a first elastic element, the upper grinding plate is set on the upper end of the grinding disc, both the grinding disc and the upper grinding plate are trumpet-shaped structures facing the direction of the first motor, and the gap between the grinding disc and the upper grinding plate gradually decreases from the middle to the edge.

[0009] Furthermore, the vibration mechanism includes a shaped block, a vibrating block, and a striking rod. The shaped block is disposed on the outer wall of the drying tube, and has multiple protrusions in the circumferential direction. The shaped block is rotatable, and at least two vibrating rods abut against each other on the shaped block. The end of the vibrating rod away from the shaped block passes through the vibrating block and is slidably connected to it. A pressure plate is fixedly disposed on the vibrating rod, and a second elastic element is disposed between the pressure plate and the vibrating block. The part of the vibrating rod located on the lower side of the vibrating block is rotatably connected to a striking rod. A pin is fixedly connected to one end of the vibrating block, and a waist-shaped groove is opened on the striking rod. The pin is engaged in the waist-shaped groove, and the striking rod can contact the drying tube.

[0010] Furthermore, a collection chamber is provided at one end of the outlet, and an air outlet pipe is provided at the other end of the collection chamber. The air outlet pipe extends out of the outer shell, and a limiting plate is provided inside the collection chamber. The limiting plate is inclinedly set at the opening of the air outlet pipe.

[0011] Furthermore, there are three vertical tubes and two bent tubes. Each bent tube is connected to a vertical tube at both ends. One bent tube is located at the lower end of the vertical tube, and the other bent tube is located at the upper end of the vertical tube. The grinding chamber is located below the bent tube at the lower end of the vertical tube.

[0012] Furthermore, it also includes an adjustment mechanism, which comprises a gear, a moving gear, and a third motor. The third motor is mounted on the outer wall of the bent tube via a mounting plate, and the gear is mounted on the output shaft of the third motor. The filter screen is slidably mounted inside the bent tube, and the moving gear is slidably mounted on the bent tube. The moving gear is fixedly connected to the filter screen and can mesh with the gear. A detector is installed on the filter screen, and the detector is electrically connected to the third motor. When the detector detects large particles falling onto the filter screen, the detector can drive the third motor to start.

[0013] Furthermore, the filter screen is connected to the inner wall of the bent tube by a movable guide plate. The movable guide plate is telescopic and is located at the end of the filter screen that is closer to the inlet. When the filter screen slides in the bent tube along the first direction, it pulls the movable guide plate to extend.

[0014] Furthermore, the adjustment mechanism also includes a movable block, which is slidably installed on the inner wall of the bent pipe, installed on the filter screen, and located at the end of the filter screen closer to the outlet. The upper surface of the movable block is coplanar with the upper surface of the movable guide plate.

[0015] Furthermore, the movable guide plate includes a first plate and a second plate. One end of the first plate is rotatably mounted on the inner wall of the bent pipe, and the other end of the first plate is slidably connected to one end of the second plate. The other end of the second plate is rotatably mounted on the filter screen.

[0016] The beneficial effects of this invention are as follows: The polymerization inhibitor preparation apparatus of this invention uses a filter screen inclined within a bent tube. After the material enters through the inlet pipe, it is first sprayed from the atomizing nozzle into the drying chamber. Simultaneously, under the action of hot air, the atomized liquid is transformed into particles. Small particles with a diameter smaller than a first preset value pass through the filter screen with the hot air. Particles adhering to the inner wall of the drying tube will detach under the action of the vibration mechanism. Large particles that cannot move directly with the hot air will slide downwards into the grinding chamber. Medium particles with a diameter between large and small particles will be able to move with the gas, but due to the filter screen, they will be intercepted and fall downwards under the action of the vibration mechanism. Because the filter screen is inclined, as the vibration continues, the medium particles will continuously fall until they fall into the grinding chamber, preventing them from remaining attached to the filter screen due to the hot airflow and thus preventing filter screen blockage. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of a polymerization inhibitor preparation apparatus according to the present invention;

[0019] Figure 2 This is a half-sectional view of the overall structure of an embodiment of a polymerization inhibitor preparation apparatus according to the present invention;

[0020] Figure 3 This is a schematic diagram of the drying tube of an embodiment of a polymerization inhibitor preparation apparatus according to the present invention;

[0021] Figure 4 This is a half-sectional view of the drying tube of an embodiment of a polymerization inhibitor preparation apparatus of the present invention;

[0022] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0023] In the diagram: 100, outer casing; 101, vent pipe; 102, liquid inlet pipe; 103, air inlet pipe; 104, door panel; 105, support leg;

[0024] 200. Drying tube; 201. Fixing rod; 202. Atomizing nozzle; 203. Air jet; 204. Material discharge tube; 205. Push spring; 206. Upper grinding plate; 210. Filter screen; 211. Moving tooth; 212. Gear; 215. Movable block; 216. Movable guide plate; 218. Mounting plate; 219. Third motor; 300. Collection chamber; 301. Limiting plate; 302. Mounting door; 400. Grinding chamber; 401. Grinding disc; 402. Motor box; 403. First motor; 404. Chamber door; 500. Vibration mechanism; 501. Support plate; 502. Second motor; 503. Vibration rod; 5031. Pressure plate; 5032. Hinge block; 504. Second spring; 505. Vibration block; 506. Striking rod; 507. Pin; 508. Irregular block. Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] An embodiment of the polymerization inhibitor preparation apparatus of the present invention, such as... Figures 1 to 5 As shown.

[0027] An apparatus for preparing a polymerization inhibitor includes a housing 100, a drying tube 200, a filter screen 210, a collection box 300, a grinding chamber 400, an air supply mechanism, and a vibration mechanism 500. The housing 100 is arranged vertically, and a plurality of support legs 105 are provided at the lower end of the housing 100, through which the housing 100 is mounted. An opening is provided on the housing 100, and a door panel 104 is provided at one end of the opening. The door panel 104 is rotatably connected to the opening, specifically, it can be configured as a hinge.

[0028] The drying tube 200 is installed inside the outer casing 100. The drying tube 200 is composed of a vertical tube and a bent tube connected in sequence. The drying tube 200 has an S-shaped structure. The drying tube 200 has an inlet and an outlet at both ends. The air supply mechanism can introduce hot air into the drying tube 200 so that the hot air can flow from the inlet to the outlet. The direction in which the hot air flows from the inlet to the outlet in the drying tube 200 is called the first direction.

[0029] One end of the inlet is equipped with a liquid inlet pipe 102. One end of the liquid inlet pipe 102 extends out of the outer shell 100, and the other end is inside the drying tube 200. The material can enter through the liquid inlet pipe 102. The end of the liquid inlet pipe 102 extending out of the outer shell 100 is connected to the melting furnace (not shown in the figure). In use, after the material enters the melting furnace and melts, it enters the drying tube 200 through the liquid inlet pipe 102.

[0030] The liquid inlet pipe 102 is equipped with an atomizing nozzle 202 at one end inside the drying pipe 200. The atomizing nozzle 202 can atomize the incoming liquid and spray it out, and solidify it into particles under the action of hot air. The atomizing nozzle 202 is existing technology and will not be described in detail here.

[0031] A collection chamber 300 is provided at one end of the outlet for collecting the dried powder particles. Specifically, an air outlet pipe 101 is provided at one end of the collection chamber 300, extending out of the outer casing 100 to discharge hot air. A detachable installation door 302 is provided on the collection chamber. When material needs to be collected, the installation door 302 is opened to remove the dried powder particles. A limiting plate 301 is provided inside the collection chamber 300, which is inclined at the opening of the air outlet pipe 101 to prevent the dried powder particles from flowing out through the air outlet pipe 101.

[0032] The filter screen 210 is inclinedly disposed inside the bent tube, allowing particles with a diameter smaller than a first preset value to pass through. A grinding chamber 400 is connected to the lower middle section of the bent tube. The grinding chamber 400 receives particles that have not passed through the filter screen 210. A grinding mechanism is installed inside the grinding chamber 400 to grind the particles inside. A vibration mechanism 500 vibrates the drying tube 200 to prevent material from adhering to the inner wall of the drying tube 200.

[0033] Specifically, there are three vertical tubes and two bent tubes. Each bent tube is connected to a vertical tube at both ends. One bent tube is located at the lower end of a vertical tube, and the other bent tube is located at the upper end of a vertical tube. The grinding chamber 400 is located below the bent tube at the lower end of the vertical tube. The drying tube 200 is connected to the outer casing 100 by a fixing rod 201, which fixes the drying tube 200 inside the outer casing 100.

[0034] In this embodiment, the filter screen 210 is inclinedly set inside the bent tube. After the material enters through the liquid inlet pipe 102, it will first be sprayed from the atomizing nozzle 202 into the drying tube 200. At the same time, under the action of hot air, the hot air will quickly turn the atomized liquid into particles. Small particles with a diameter smaller than the first preset value will pass through the filter screen 210 with the hot air and enter the collection chamber 300 for collection. The particles adhering to the inner wall of the drying tube 200 will be detached by the vibration mechanism 500. Large particles that cannot move directly with the gas will slide down into the grinding chamber 400, while medium-sized particles with a diameter between large and small particles will be able to move with the hot air. However, due to the setting of the filter screen 210, the medium-sized particles will be intercepted by the filter screen 210 and fall down under the action of the vibration mechanism 500. Because the filter screen 210 is tilted, the medium-sized particles will continue to fall under the action of gravity. That is, after the medium-sized particles are attached to the filter screen 210, they will fall a certain distance due to the action of the vibration mechanism 500, and then be attached to the filter screen 210 again under the action of the hot air. However, because the filter screen 210 is tilted, the medium-sized particles have already moved a certain distance downward relative to their initial attachment position. As the vibration continues, the medium-sized particles will continue to fall until they fall into the grinding chamber 400, and will not be attached to the filter screen 210 indefinitely due to the action of the hot air, thus preventing the filter screen 210 from becoming clogged.

[0035] In this embodiment, the air supply mechanism includes an air inlet pipe 103 and a hot air blower. An air inlet pipe 103 is provided at one end of the inlet, and one end of the air inlet pipe 103 extends out of the outer casing 100. The end of the air inlet pipe 103 extending out of the outer casing 100 is connected to the hot air blower (not shown in the figure). The other end of the air inlet pipe 103 is connected to the drying pipe 200. Multiple air jets 203 are connected to the side wall of the drying pipe 200. The multiple air jets 203 are connected to the air inlet pipe 103. Before use, the hot air blower is turned on so that hot air is sprayed into the drying pipe 200 through the air jets 203 to preheat the device.

[0036] In this embodiment, the grinding mechanism can grind large particles into small particles with a diameter smaller than a first preset value. The grinding mechanism includes a grinding disc 401, a first motor 403, and an upper grinding plate 206. A door 404 is provided on the grinding chamber 400, and the door 404 is rotatably installed in the grinding chamber 400 so that the door 404 can be opened. A motor housing 402 is provided inside the grinding chamber 400, and the first motor 403 is installed in the motor housing 402, so that the first motor 403 is separated from the grinding chamber 400 to prevent the ground particles from entering the first motor 403.

[0037] The first motor 403 drives the grinding disc 401 to rotate. A material drop pipe 204 is provided on the lower wall of the middle part of the bent tube. The upper grinding plate 206 is installed at the lower end of the material drop pipe 204 by a first elastic element, which is a push spring 205. The upper grinding plate 206 is located on the upper end of the grinding disc 401. Both the grinding disc 401 and the upper grinding plate 206 are funnel-shaped structures facing the direction of the first motor 403. The gap between the grinding disc 401 and the upper grinding plate 206 gradually decreases from the middle to both sides. After large particles of material fall into the grinding chamber 400, they can be ground into small particles with a diameter smaller than a first preset value.

[0038] In this embodiment, the vibration mechanism 500 includes a shaped block 508, a vibrating block 505, and a striking rod 506. The shaped block 508 is disposed on the outer wall of the drying tube 200, and has multiple protrusions in the circumferential direction, specifically four. The shaped block 508 is rotatable. Specifically, a support plate 501 is disposed on the drying tube 200, and a second motor 502 is mounted on the support plate 501. The shaped block 508 is mounted on the output shaft of the second motor 502, and can drive the shaped block 508 to rotate when the second motor 502 rotates.

[0039] At least two vibrating rods 503 abut against the irregularly shaped block 508. One end of each vibrating rod 503, away from the irregularly shaped block 508, passes through and slidably connects to the vibrating block 505. A pressure plate 5031 is fixedly mounted on each vibrating rod 503. A second elastic element, a second spring 504, is provided between the pressure plate 5031 and the vibrating block 505. A striking rod 506 is rotatably connected to the portion of the vibrating rod 503 located below the vibrating block 505. Specifically, a hinge block 5032 is provided at the lower end of the vibrating rod 503, and the striking rod 506 is hinged to the hinge block 5032. A pin 507 is fixedly connected to one end of the vibrating block 505. A waist-shaped groove is formed on the striking rod 506, and the pin 507 engages within the waist-shaped groove, allowing the striking rod 506 to contact the drying tube 200. Specifically, in this embodiment, at least one vibrating rod 503 points towards the filter screen 210, and at least one vibrating rod 503 points towards the jet nozzle 203. When in use, the second motor 502 is started to drive the irregular block 508 to rotate. The rotation of the irregular block 508 causes the push rod to move intermittently, so that the striking rod 506 slides in the waist-shaped groove and intermittently strikes the drying tube 200, causing the drying tube 200 to vibrate.

[0040] Working process: Before use, start the hot air blower to spray hot air into the drying tube 200 through the jet nozzle 203. The hot air will continuously flow from the inlet to the outlet to preheat the device.

[0041] When in use, the second motor 502 is started, and the material is poured into the melting furnace. After the material enters the melting furnace and melts, it enters the drying tube 200 through the liquid inlet pipe 102, and then is sprayed out from the atomizing nozzle 202 into the drying tube 200. At the same time, under the action of hot air, the atomized liquid is quickly turned into small particles, and the small particles with a diameter smaller than the first preset value are carried by the hot air through the filter screen 210 into the collection chamber 300 for collection.

[0042] The particles adhering to the inner wall of the drying tube 200 are rotated by the second motor 502 driving the shaped block 508 to rotate. The rotation of the shaped block 508 causes the push rod to move intermittently, causing the striking rod 506 to slide in the waist-shaped groove and repeatedly strike the drying tube 200. This causes the particles adhering to the inner wall of the drying tube 200 to fall off under the action of the striking rod 506. Large particles that cannot move directly with the gas will slide down into the grinding chamber 400, while medium-sized particles with a diameter between large and small particles will be able to move with the hot air. However, due to the setting of the filter screen 210, the medium-sized particles will be intercepted by the filter screen 210 and then fall off under the action of the striking rod 506. Under the action of 06, the particles fall downwards. Due to the inclined setting of the filter screen 210, the medium particles will continuously fall under the action of gravity. That is, after the medium particles are attached to the filter screen 210, they will fall a certain distance due to the action of the striking rod 506. Then, under the action of hot air, they will be attached to the filter screen 210 again. However, due to the inclined setting of the filter screen 210, the medium particles have already moved a certain distance downwards relative to the initial attachment position. As the vibration continues, the medium particles will continue to fall until they fall into the grinding chamber 400. They will not be attached to the filter screen 210 indefinitely due to the action of hot air, thus preventing the filter screen 210 from becoming clogged.

[0043] After preparation is completed, the hot air blower and the second motor 502 are turned off, and the first motor 403 in the grinding chamber 400 is started, so that the first motor 403 drives the grinding disc 401 to rotate. The rotation of the grinding disc 401 cooperates with the upper grinding plate 206 to grind the large particles that fall in into small particles with a diameter smaller than the first preset value.

[0044] In another possible embodiment, the polymerization inhibitor preparation apparatus further includes an adjustment mechanism comprising a gear 212, a moving gear 211, and a third motor 219. The third motor 219 is mounted on the outer wall of the bent tube via a mounting plate 218. The gear 212 is mounted on the output shaft of the third motor 219, and when the third motor 219 rotates, it drives the gear 212 to rotate. A filter screen 210 is slidably mounted inside the bent tube, and the moving gear 211 is slidably mounted on the bent tube. Specifically, a connecting groove is provided on the bent tube, and the moving gear 211 is slidably mounted in the connecting groove. The moving gear 211 is fixedly connected to the filter screen 210 and can mesh with the gear 212. When the gear 212 rotates, the moving gear 211 can drive the filter screen 210 to move, allowing the filter screen 210 to slide within the bent tube. A detector is installed on the filter screen 210, which is electrically connected to the third motor 219. The detector can drive the third motor 219 to start. When the detector detects large particles falling onto the filter screen 210, it will drive the third motor 219 to move the filter screen 210, preventing large particles from continuously impacting it. Because the grinding chamber 400 is located at the lower middle part of the bent tube, the gravitational potential energy of large materials will reach its maximum when they fall to the bent tube. This will cause the large materials to continue moving within the drying tube 200, potentially impacting or even damaging the filter screen 210.

[0045] The detector can be a frequency detector, used to detect the vibration frequency of the filter screen 210. The frequency detector is electrically connected to the third motor 219. When the frequency detector detects a frequency greater than a first preset frequency, it starts the third motor 219. As large materials continuously adhere to the filter screen 210, the vibration frequency of the filter screen 210 is called the first preset frequency. That is, when large materials continuously fall onto the filter screen 210, the frequency detector detects an increase in the vibration frequency of the filter screen 210. The frequency detector then controls the third motor 219 to start. When the filter screen 210 moves in the first direction until the large materials no longer fall onto the filter screen 210, the frequency detector controls the third motor 219 to stop.

[0046] The detector can also be a laser diameter gauge. The laser diameter gauge is used to detect the diameter of the material falling on the filter screen 210. The laser diameter gauge is electrically connected to the third motor 219. When material with a diameter greater than the second preset value falls on the filter screen 210, the laser diameter gauge will control the third motor 219 to start. When the filter screen 210 moves in the first direction until the large material no longer falls on the filter screen 210, the laser diameter gauge will control the third motor 219 to stop.

[0047] Furthermore, the filter screen 210 is connected to the inner wall of the bent tube via a movable guide plate 216. The movable guide plate 216 is telescopic and is positioned at the end of the filter screen 210 closer to the inlet. When the filter screen 210 slides in the bent tube along a first direction, it pulls the movable guide plate 216 to extend. Specifically, the movable guide plate 216 includes a first plate and a second plate. One end of the first plate is rotatably mounted on the inner wall of the bent tube, and the other end of the first plate is slidably connected to one end of the second plate. The other end of the second plate is rotatably mounted on the filter screen 210. Furthermore, the adjustment mechanism also includes a movable block 215, which is slidably installed on the inner wall of the bent pipe and mounted on the filter screen 210. The movable block 215 is located at the end of the filter screen 210 closer to the outlet. That is, the movable block 215 and the movable guide plate 216 are respectively located on both sides of the filter screen 210, and the upper surface of the movable block 215 is coplanar with the upper surface of the movable guide plate 216. This prevents hot air from not reaching the location of the movable block 215 due to the flow guidance effect of the movable guide plate 216, thus preventing material accumulation.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An apparatus for preparing a polymerization inhibitor, characterized in that: The system includes an outer shell, a drying tube, a filter screen, a collection box, a grinding chamber, an air supply mechanism, and a vibration mechanism. The drying tube is located inside the outer shell and is composed of a vertical tube and a bent tube connected in sequence. The drying tube has an S-shaped structure, with an inlet and an outlet at each end. The air supply mechanism can introduce hot air into the drying tube, allowing the hot air to flow from the inlet to the outlet. The direction of the hot air flow from the inlet to the outlet in the drying tube is called the first direction. A liquid inlet pipe is provided at one end of the inlet. One end of the liquid inlet pipe extends out of the outer shell, and the other end is inside the drying tube. Material can enter through the liquid inlet pipe. An atomizing nozzle is provided at the end of the liquid inlet pipe inside the drying tube. The atomizing nozzle can atomize the incoming liquid and spray it out, which is then solidified into particles under the action of hot air. The filter screen is inclinedly arranged inside the bent tube. The filter screen can allow small particles with a diameter smaller than a first preset value to pass through. A grinding chamber is connected to the lower wall of the middle part of the bent tube. The grinding chamber can receive particles that have not passed through the filter screen. A grinding mechanism is provided inside the grinding chamber to grind the particles. The vibration mechanism causes the drying tube to vibrate; it also includes an adjustment mechanism comprising gears, a moving gear, and a third motor; the third motor is mounted on the outer wall of the bent tube via a mounting plate, and the gear is mounted on the output shaft of the third motor; the filter screen is slidably mounted inside the bent tube, and the moving gear is slidably mounted on the bent tube, fixedly connected to the filter screen, and capable of meshing with the gear; a detector is installed on the filter screen, electrically connected to the third motor. When the detector detects large particles falling onto the filter screen, it drives the third motor to start, causing the filter screen to move and preventing large particles from continuously impacting the filter screen. The filter screen is connected to the inner wall of the bend tube by a movable guide plate. The movable guide plate is telescopic and is located at the end of the filter screen closer to the inlet. When the filter screen slides in the bend tube along the first direction, it pulls the movable guide plate to extend. Large particles that cannot move directly with the gas will slide down into the grinding chamber, while medium particles with a diameter between large and small particles will be able to move with the hot air. Under the action of the vibration mechanism, the medium particles intercepted by the filter screen will fall down. Due to the inclined setting of the filter screen, the medium particles will continue to fall under the action of the component of gravity until they fall into the grinding chamber.

2. The apparatus for preparing a polymerization inhibitor according to claim 1, characterized in that: The air supply mechanism includes an air inlet pipe and a hot air blower. An air inlet pipe is provided at one end of the inlet, and one end of the air inlet pipe extends out of the outer casing. The end of the air inlet pipe extending out of the outer casing is connected to the hot air blower. The other end of the air inlet pipe is connected to a drying pipe. Multiple air jets are connected to the side wall of the drying pipe, and the multiple air jets are connected to the air inlet pipe.

3. The apparatus for preparing a polymerization inhibitor according to claim 1, characterized in that: The grinding mechanism includes a grinding disc, a first motor, and an upper grinding plate. The first motor drives the grinding disc to rotate. A material drop pipe is provided on the lower wall of the middle part of the bent tube. The upper grinding plate is installed on the lower end of the material drop pipe through a first elastic element. The upper grinding plate is set on the upper end of the grinding disc. Both the grinding disc and the upper grinding plate are trumpet-shaped structures facing the direction of the first motor, and the gap between the grinding disc and the upper grinding plate gradually decreases from the middle to the edge.

4. The apparatus for preparing a polymerization inhibitor according to claim 1, characterized in that: The vibration mechanism includes a shaped block, a vibrating block, and a striking rod. The shaped block is disposed on the outer wall of the drying tube. The shaped block has multiple protrusions in the circumferential direction and can rotate. At least two vibrating rods abut against each other on the shaped block. The end of the vibrating rod away from the shaped block passes through the vibrating block and is slidably connected to it. A pressure plate is fixedly disposed on the vibrating rod. A second elastic element is disposed between the pressure plate and the vibrating block. The part of the vibrating rod located on the lower side of the vibrating block is rotatably connected to a striking rod. A pin is fixedly connected to one end of the vibrating block. A waist-shaped groove is opened on the striking rod. The pin is engaged in the waist-shaped groove and the striking rod can contact the drying tube.

5. The apparatus for preparing a polymerization inhibitor according to claim 1, characterized in that: A collection chamber is provided at one end of the outlet, and an air outlet pipe is provided at the other end of the collection chamber. The air outlet pipe extends out of the outer shell, and a limiting plate is provided inside the collection chamber. The limiting plate is inclined at the opening of the air outlet pipe.

6. The apparatus for preparing a polymerization inhibitor according to claim 1, characterized in that: There are three vertical tubes and two bent tubes. Each bent tube is connected to a vertical tube at both ends. One bent tube is located at the lower end of the vertical tube, and the other bent tube is located at the upper end of the vertical tube. The grinding chamber is located below the bent tube at the lower end of the vertical tube.

7. The apparatus for preparing a polymerization inhibitor according to claim 1, characterized in that: The adjustment mechanism also includes a movable block, which is slidably installed on the inner wall of the bent pipe and mounted on the filter screen. The movable block is located at the end of the filter screen closer to the outlet, and the upper surface of the movable block is coplanar with the upper surface of the movable guide plate.

8. The apparatus for preparing a polymerization inhibitor according to claim 1, characterized in that: The movable guide plate includes a first plate and a second plate. One end of the first plate is rotatably mounted on the inner wall of the bent pipe, and the other end of the first plate is slidably connected to one end of the second plate. The other end of the second plate is rotatably mounted on the filter screen.

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