A phenolic resin production equipment for safe feeding

Abstract

The utility model discloses a kind of phenolic resin production equipment for safe feeding, it is related to phenolic resin production technical field.The utility model includes bottom plate, further includes: feeding part, the feeding part is set in the top of bottom plate;Filtering part, the filtering part is set on feeding part;The feeding part includes ration assembly, and the ration assembly is installed the top of bottom plate;Feeding assembly, the feeding assembly is set in the top of bottom plate;And stirring assembly, the stirring assembly is installed on ration assembly;The ration assembly includes the reaction kettle of fixed connection in the top of bottom plate.The utility model sets up feeding part, solved the inconvenience of ration discharge, will cause raw material feeding quantity unstable, excessive when waste raw material, increase cost, also can cause product performance due to proportioning imbalance, not enough then lead to product specification not up to standard, appear quality defect, and need frequent shutdown adjustment, reduce production efficiency, affect the problem of stable operation of production line.

Description

Technical Field

[0001] This utility model belongs to the field of phenolic resin production technology, and in particular relates to a safe feeding device for phenolic resin production. Background Technology

[0002] A phenolic resin feeding device is an automated or semi-automated conveying equipment specifically designed for phenolic resin. It is mainly used to accurately and stably transport phenolic resin raw materials from storage containers to subsequent production stages. This device is required for phenolic resin feeding because phenolic resin raw materials may have problems such as easy moisture absorption and clumping, dust pollution, low efficiency and high labor intensity of manual feeding. This device can reduce dust leakage through closed conveying, ensure accurate raw material ratio through quantitative control, reduce the risk of human contact, ensure production continuity and stability, and adapt to the needs of large-scale industrial production.

[0003] However, the existing feeding device is not convenient for quantitative feeding during use, which will cause the raw material input to be unstable. When the input is too much, it will waste raw materials, increase costs, and affect product performance due to imbalance in the ratio. When the input is too little, it will lead to substandard product specifications and quality defects. In addition, it will require frequent shutdowns for adjustment, reduce production efficiency, and affect the stable operation of the production line. Utility Model Content

[0004] The purpose of this utility model is to provide a safe feeding equipment for phenolic resin production. By setting up a feeding section, it solves the problems of inconvenient quantitative feeding, which leads to unstable raw material feeding. Excessive feeding will waste raw materials, increase costs, and affect product performance due to imbalance in the ratio. Insufficient feeding will result in substandard product specifications and quality defects, and frequent shutdowns for adjustment will reduce production efficiency and affect the stable operation of the production line.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a safe feeding device for phenolic resin production, comprising a base plate, and further comprising: a feeding section disposed on top of the base plate; a filtration section disposed on the feeding section; the feeding section includes a metering component mounted on top of the base plate; a feeding assembly disposed on top of the base plate; and a stirring assembly mounted on the metering component; the metering assembly includes a reaction vessel fixedly connected to the top of the base plate, a hopper fixedly connected to the top of the reaction vessel, a metering and feeding device disposed on the top of the hopper, a motor fixedly connected to the top of the hopper, the output shaft of the motor fixedly connected to a rotating shaft via a coupling, the rotating shaft passing through the hopper and rotatably connected to the hopper, the outer wall of the rotating shaft being fitted with auger blades, and a solenoid valve disposed on the hopper; wherein, the hopper is connected to the reaction vessel.

[0006] Furthermore, the filtration section includes a filtration assembly disposed at the bottom of the reactor; and two quick-release assemblies are provided, both of which are mounted on the filtration assembly; wherein the two quick-release assemblies are respectively mounted on the left and right sides of the filtration assembly.

[0007] Furthermore, the feeding assembly includes a storage tank fixedly connected to the top of the base plate, a feeding pipe fixedly connected to the top of the storage tank, a vacuum pump installed at the top of the storage tank, a conveying pipe fixedly connected to the top of the vacuum pump, and a hopper fixedly connected to the end of the conveying pipe. The feeding pipe is connected to the storage tank, and the negative pressure generated by the vacuum pump enables automated material conveying from the storage tank to the hopper, reducing manual intervention. At the same time, the connection between the storage tank and the feeding pipe facilitates the replenishment of materials at any time, thus improving the efficiency and continuity of the feeding process.

[0008] Furthermore, the stirring assembly includes a motor sleeve fixedly connected to the top of the reactor. A second motor is fitted onto the motor sleeve, and the output shaft of the second motor is fixedly connected to a second rotating shaft via a coupling. Several stirring blades are fitted onto the outer wall of the second rotating shaft. The second rotating shaft penetrates the reactor and is rotatably connected to it. This design enables the rotating shaft and stirring blades to rotate via a motor, achieving thorough mixing of materials within the reactor. The motor sleeve provides stable support for the motor, the through-type rotating shaft design ensures that the stirring range covers the entire reaction space, and the numerous stirring blades further enhance the stirring effect, improving reaction uniformity and efficiency.

[0009] Furthermore, the filtration assembly includes a feed pipe fixedly connected to the bottom of the reactor, a manual valve on the feed pipe, a filter box fixedly connected to the bottom of the feed pipe, a filter element slidably connected to the inner wall of the filter box, a sealing cap fixedly connected to the front of the filter element, a discharge pipe fixedly connected to the bottom of the filter box, a finished product collection tank on the top of the base plate, the end of the discharge pipe extending into the discharge pipe and slidably connected to the finished product collection tank, and a sealing element on the filter box; wherein, the finished product collection tank is located on the left side of the reactor.

[0010] Furthermore, the quick-release assembly includes a limiting hole on the front of the sealing cover, a rectangular block fixedly connected to the left side of the filter box, a screw fixedly connected to the front of the rectangular block, a limiting block slidably connected to the outer wall of the screw, the back of the limiting block extending into the limiting hole and slidably connected to the limiting hole, a knob threadedly connected to the outer wall of the screw, and a reset component provided on the outer wall of the screw. The limiting block can both slide on and rotate on the outer wall of the screw. Through the cooperation of the sliding and rotating limiting block with the limiting hole, combined with the adjustment of the knob thread and the elastic action of the reset component, quick disassembly and assembly of the sealing cover and the filter box can be achieved without tool assistance. The operation is simple and it can automatically reset, significantly improving maintenance efficiency and reducing labor intensity.

[0011] Furthermore, the sealing element includes a sealing groove formed on the front of the filter box, and a sealing ring is fixedly connected to the back of the sealing cover; wherein, the rear end of the sealing ring extends into the sealing groove. This design utilizes the tight fit between the sealing ring and the sealing groove to form a reliable sealing structure, effectively preventing material leakage and the intrusion of external impurities, improving the safety and stability of equipment operation, while ensuring the cleanliness of the process environment and reducing maintenance costs.

[0012] Furthermore, the reset component includes a spring wound around the outer wall of the screw. One end of the spring is fixedly connected to the rectangular block, and the other end of the spring is fixedly connected to the limiting block. The elastic force of the spring can automatically push the limiting block to reset after it is disengaged from the limiting hole, ensuring the stable fit between the limiting block and the limiting hole, enhancing the automatic reset capability of the quick-release assembly, reducing manual adjustment steps, and further improving the convenience and reliability of disassembly and assembly operations.

[0013] This utility model has the following beneficial effects: 1. By setting up a feeding section, the feeding operation process of the equipment is as follows: start the vacuum pump, use negative pressure to suck the raw material from the storage tank into the hopper through the conveying pipe, the metering and feeding device in the hopper accurately measures the raw material, after the amount of raw material reaches the standard, the system shuts down the vacuum pump to stop feeding according to the program, then opens the solenoid valve to discharge the material, and then starts motor one, which drives the auger blades to rotate through shaft one to quantitatively transport the raw material to the reaction vessel. This process reduces quality problems and efficiency losses through accurate metering, and adopts a closed conveying and metering design to prevent raw material leakage, avoid direct contact with personnel, and ensure feeding safety. 2. By setting up a filter section, when the filter element needs to be replaced or cleaned, the operator turns the knob on the two screws to release the lock on the limit block. The limit block moves outward under the spring force, releasing the constraint on the filter element sealing cover. Rotate the limit block 180 degrees relative to each other to avoid interfering with disassembly. Then pull the sealing cover to remove the filter element. When installing a new filter element, ensure that the sealing ring of the sealing cover fits tightly with the sealing groove of the filter box to prevent leakage. The remaining steps are the reverse of disassembly. This quick-release structure simplifies the replacement process and improves equipment maintenance efficiency.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional view of the feeding section of this utility model; Figure 3 This is a partial cross-sectional view of the filter section of this utility model; Figure 4 This utility model Figure 2 A magnified structural diagram of A in the middle; Figure 5 This utility model Figure 3 A magnified structural diagram of B in the diagram.

[0017] The attached diagram lists the components represented by each number as follows: 1. Base plate; 2. Feeding section; 21. Metering assembly; 211. Reactor; 212. Hopper; 213. Metering and feeding device; 214. Motor 1; 215. Shaft 1; 216. Screwdriver blades; 217. Solenoid valve; 22. Feeding assembly; 221. Storage tank; 222. Feeding pipe; 223. Vacuum pump; 224. Conveying pipe; 23. Stirring assembly; 231. Motor sleeve; 232. Motor 2; 233. Shaft 2 234. Stirring blade; 3. Filter section; 31. Filter assembly; 311. Feed pipe; 312. Manual valve; 313. Filter box; 314. Filter element; 315. Sealing cover; 316. Discharge pipe; 317. Finished product collection tank; 318. Sealing groove; 319. Sealing ring; 32. Quick release assembly; 321. Limiting hole; 322. Rectangular block; 323. Screw; 324. Limiting block; 325. Knob; 326. Spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5 As shown, this utility model is a phenolic resin production equipment for safe feeding, including a base plate 1, and further including: a feeding part 2, which is disposed on the top of the base plate 1; and a filter part 3, which is disposed on the feeding part 2.

[0020] The feeding section 2 includes a metering component 21, which is mounted on the top of the base plate 1; a feeding component 22, which is also mounted on the top of the base plate 1; and a stirring component 23, which is mounted on the metering component 21. The metering component 21 includes a reactor 211 fixedly connected to the top of the base plate 1, a hopper 212 fixedly connected to the top of the reactor 211, a metering and feeding device 213 on the top of the hopper 212, a motor 214 fixedly connected to the top of the hopper 212, a rotating shaft 215 fixedly connected to the output shaft of the motor 214 via a coupling, the rotating shaft 215 passing through the hopper 212 and rotatably connected to the hopper 212, and an auger blade 216 sleeved on the outer wall of the rotating shaft 215. A solenoid valve 217 is installed on the hopper 212. The feeding assembly 22, connected to the reactor 211, includes a storage tank 221 fixedly connected to the top of the base plate 1. A feeding pipe 222 is fixedly connected to the top of the storage tank 221. A vacuum pump 223 is installed on the top of the storage tank 221, and a conveying pipe 224 is fixedly connected to the top of the vacuum pump 223. The end of the conveying pipe 224 is fixedly connected to the hopper 212. The feeding pipe 222 communicates with the storage tank 221. The stirring assembly 23 includes an electric stirring device fixedly connected to the top of the reactor 211. The machine sleeve 231 has a motor 232 mounted on it. The output shaft of the motor 232 is fixedly connected to the rotating shaft 233 via a coupling. Several stirring blades 234 are mounted on the outer wall of the rotating shaft 233. The rotating shaft 233 passes through the reactor 211 and is rotatably connected to it. The feeding operation process during equipment operation is as follows: the vacuum pump 223 is started, and the raw material in the storage tank 221 is sucked into the hopper 212 through the conveying pipe 224 by the negative pressure. The metering and feeding device 213 in the hopper accurately measures the raw material. After the amount of raw material reaches the standard, the system shuts down the vacuum pump to stop feeding according to the program, and then opens the solenoid valve 217 to discharge the material. Then, the motor 214 is started, and the auger blades 216 are driven to rotate through the rotating shaft 215 to quantitatively transport the raw material to the reactor 211. This process reduces quality problems and efficiency losses through accurate metering, and the closed conveying and metering design can prevent raw material leakage, avoid direct contact with personnel, and ensure feeding safety.

[0021] The filtration section 3 includes a filter assembly 31, which is located at the bottom of the reactor 211; and two quick-release assemblies 32, both of which are mounted on the filter assembly 31. The two quick-release assemblies 32 are respectively mounted on the left and right sides of the filter assembly 31. The filter assembly 31 includes a feed pipe 311 fixedly connected to the bottom of the reactor 211, a manual valve 312 installed on the feed pipe 311, a filter box 313 fixedly connected to the bottom of the feed pipe 311, a filter element 314 slidably connected to the inner wall of the filter box 313, and a sealing cover 315 fixedly connected to the front of the filter element 314. The bottom of the filter box 313 is fixedly connected to a discharge pipe 316, and the top of the bottom plate 1 is provided with a finished product collection tank 317. The end of the discharge pipe 316 extends into the discharge pipe 316 and is slidably connected to the finished product collection tank 317. A sealing element is provided on the filter box 313. The finished product collection tank 317 is located on the left side of the reactor 211. The quick-release assembly 32 includes a limiting hole 321 opened on the front of the sealing cover 315. A rectangular block 322 is fixedly connected to the left side of the filter box 313. A screw 323 is fixedly connected to the front of the rectangular block 322. A limiting block 324 is slidably connected to the outer wall of the screw 323. The back of the limiting block 324 extends to the limiting block 324. The screw 323 is slidably connected to the limiting hole 321 and the screw 323 is threadedly connected to the outer wall of the screw 323. The outer wall of the screw 323 is provided with a reset component. The limiting block 324 can slide on the outer wall of the screw 323 and rotate on the outer wall of the screw 323. The sealing component includes a sealing groove 318 formed on the front of the filter box 313. A sealing ring 319 is fixedly connected to the back of the sealing cover 315. The rear end of the sealing ring 319 extends into the sealing groove 318. The reset component includes a spring 326 wound around the outer wall of the screw 323. One end of the spring 326 is fixedly connected to the rectangular block 322. The other end of the spring 326... The filter element 314 is fixedly connected to the limiting block 324. By setting the filter part 3, when the filter element 314 needs to be replaced or cleaned, the operator can turn the knob 325 on the two screws 323 to release the lock on the limiting block 324. The limiting block moves outward under the elastic force of the spring 326, releasing the constraint on the filter element sealing cover 315. The limiting block is rotated 180 degrees to avoid interfering with disassembly. Then, the sealing cover can be pulled to remove the filter element. When installing a new filter element, it is necessary to ensure that the sealing ring 319 of the sealing cover is tightly fitted with the sealing groove 318 of the filter box 313 to prevent leakage. The remaining steps are the reverse of disassembly. This quick-release structure simplifies the replacement process and improves the equipment maintenance efficiency.

[0022] One specific application of this embodiment is: a metering and feeding device 213 for quantitative feeding of phenolic resin: it is a device for accurately controlling the amount of phenolic resin and its raw materials fed into the container. It monitors the weight or volume of the material through components such as weighing sensors and level gauges, and then the control system drives the valves, motors and other actuators to feed the material according to the preset amount. This can improve the accuracy of batching and production efficiency, and reduce human error and material waste. Recommended models include the TSP series of 2-liquid automatic weighing and mixing unloading machines from Sosey Japan, which are equipped with the SOSEY-SOLID® pump system and can discharge ultra-small quantities. It is suitable for materials with low to high specific gravity and viscosity. Models include TSP-015, TSP-050, etc.

[0023] The 217 solenoid valve for quantitative feeding of phenolic resin is an automated actuator used to precisely control the feeding amount of phenolic resin. It generates electromagnetic force by energizing an electromagnetic coil, which controls the movement of the valve core, thereby opening or closing the fluid passage to achieve quantitative delivery of phenolic resin. When used with weighing sensors and other equipment, it can accurately control the feeding amount according to the set weight or volume parameters. Recommended models include the VQ31A-5GZ-C12-F from SMC Japan, which is a 2-way pilot-operated solenoid valve with a fast response speed, completing the action in less than 7ms. It is available in various voltages and is suitable for fluids such as air and inert gases. The environmental and fluid temperature adaptability range is -10 to 50 degrees Celsius.

[0024] The 223 vacuum pump for phenolic resin feeding is used to transport phenolic resin materials from one location to another. By generating negative pressure, it provides power for phenolic resin feeding, enabling efficient material transfer. Recommended models include the F2SK series corrosion-resistant liquid ring vacuum pump, which is made of phenolic glass fiber reinforced plastic and features a wide range of corrosion resistance, high vacuum degree, and high pumping speed in the high vacuum range. Models include IIFSK-1.5, IIFSK-2, and IIFSK-3, with exhaust volume ranging from approximately 1.6 to 20.4 m³ / h and an ultimate vacuum degree of about 0.098 MPa. It is suitable for processes such as feeding phenolic resin and other chemical materials.

[0025] During equipment operation, the feeding operation can be performed according to the following steps: First, start the vacuum pump 223. With the help of the negative pressure generated by the vacuum pump, the raw material in the storage tank 221 is sucked into the hopper 212 of the feeding system through the conveying pipe 224. During this process, the metering and feeding device 213 equipped in the hopper 212 will accurately measure the incoming raw material. When the amount of raw material reaches the preset standard, the system will start the subsequent operation according to the program. First, the vacuum pump 223 is turned off to stop feeding. Then, the solenoid valve 217 is controlled to open for feeding. Then, the motor 214 is started. The motor 214 drives the auger blades 216 to rotate through the shaft 215, and quantitatively delivers the raw material into the reactor 211. This operation process can reduce product quality problems and production efficiency losses caused by inaccurate raw material feeding. At the same time, the entire feeding process adopts a closed conveying and metering design, which can effectively eliminate the risk of raw material leakage and avoid direct contact between operators and raw materials, thereby fully ensuring the safety of the feeding process.

[0026] After the raw materials are put into the reaction vessel 211, the motor 232 can be started. The motor 232 drives the stirring blade 234 to rotate through the rotating shaft 233, so that the raw materials in the vessel are fully mixed and stirred to ensure uniform reaction. After the raw materials are mixed, the manual valve 312 on the feed pipe 311 can be opened. The mixed raw materials flow into the filter box 313 under the action of inertia. The filter element 314 built into the filter box 313 can efficiently filter the impurities generated by the reaction, significantly improving the purity of the product. The filtered mixture flows into the finished product collection tank 317 through the discharge pipe 316 to complete the collection.

[0027] When filter element 314 needs to be replaced or cleaned due to prolonged use, the operator can release the locking of the limiting block 324 on the outer wall of the screw 323 by turning the knob 325 on the two screws 323. At this time, the two limiting blocks 324 will move outward under the elastic force of the spring 326, thereby releasing the limiting constraint on the sealing cover 315 of filter element 314. After the limit is released, the two limiting blocks 324 can be rotated 180 degrees relative to each other to avoid interfering with the disassembly operation of filter element 314. Then, the sealing cover 315 can be pulled outward to complete the disassembly and replacement of filter element 314. When installing a new filter element, it is necessary to ensure that the sealing ring 319 on the sealing cover 315 fits tightly with the sealing groove 318 of the filter box 313 to prevent liquid leakage. The remaining installation steps are the reverse of the disassembly process. This quick-release structure greatly simplifies the filter element replacement process and significantly improves the maintenance efficiency of the equipment.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A safe feeding phenolic resin production equipment, comprising a base plate (1), characterized in that, Also includes: The feeding section (2) is located on the top of the base plate (1); A filter section (3) is provided on the feeding section (2); The feeding section (2) includes a metering component (21), which is mounted on the top of the base plate (1); A feeding assembly (22) is disposed on top of the base plate (1); as well as A stirring assembly (23) is mounted on a metering assembly (21); The quantitative component (21) includes a reactor (211) fixedly connected to the top of the base plate (1). A hopper (212) is fixedly connected to the top of the reactor (211). A metering and feeding device (213) is provided on the top of the hopper (212). A motor (214) is fixedly connected to the top of the hopper (212). The output shaft of the motor (214) is fixedly connected to a rotating shaft (215) via a coupling. The rotating shaft (215) passes through the hopper (212) and is rotatably connected to the hopper (212). A screw conveyor blade (216) is sleeved on the outer wall of the rotating shaft (215). A solenoid valve (217) is provided on the hopper (212). The hopper (212) is connected to the reactor (211).

2. The phenolic resin production equipment for safe feeding according to claim 1, characterized in that, The filtration section (3) includes a filtration assembly (31) disposed at the bottom of the reactor (211); and Two quick-release components (32) are provided, and both quick-release components (32) are installed on the filter component (31); Two quick-release components (32) are installed on the left and right sides of the filter component (31), respectively.

3. The phenolic resin production equipment for safe feeding according to claim 2, characterized in that, The feeding assembly (22) includes a storage tank (221) fixedly connected to the top of the base plate (1), a feeding pipe (222) fixedly connected to the top of the storage tank (221), a vacuum pump (223) provided on the top of the storage tank (221), a conveying pipe (224) fixedly connected to the top of the vacuum pump (223), and the end of the conveying pipe (224) fixedly connected to the hopper (212); The feeding pipe (222) is connected to the storage tank (221).

4. The phenolic resin production equipment for safe feeding according to claim 3, characterized in that, The stirring assembly (23) includes a motor sleeve (231) fixedly connected to the top of the reactor (211), a second motor (232) is fitted on the motor sleeve (231), the output shaft of the second motor (232) is fixedly connected to a second rotating shaft (233) through a coupling, and a plurality of stirring blades (234) are fitted on the outer wall of the second rotating shaft (233). Among them, the second rotating shaft (233) passes through the reactor (211) and is rotatably connected to the reactor (211).

5. The phenolic resin production equipment for safe feeding according to claim 4, characterized in that, The filter assembly (31) includes a feed pipe (311) fixedly connected to the bottom of the reactor (211), a manual valve (312) is provided on the feed pipe (311), a filter box (313) is fixedly connected to the bottom of the feed pipe (311), a filter element (314) is slidably connected to the inner wall of the filter box (313), a sealing cover (315) is fixedly connected to the front of the filter element (314), a discharge pipe (316) is fixedly connected to the bottom of the filter box (313), a finished product collection tank (317) is provided on the top of the base plate (1), the end of the discharge pipe (316) extends into the discharge pipe (316) and is slidably connected to the finished product collection tank (317), and a sealing element is provided on the filter box (313). The finished product collection tank (317) is located on the left side of the reactor (211).

6. The phenolic resin production equipment for safe feeding according to claim 5, characterized in that, The quick-release assembly (32) includes a limiting hole (321) on the front of the sealing cover (315), a rectangular block (322) is fixedly connected to the left side of the filter box (313), a screw (323) is fixedly connected to the front of the rectangular block (322), a limiting block (324) is slidably connected to the outer wall of the screw (323), the back of the limiting block (324) extends into the limiting hole (321) and is slidably connected to the limiting hole (321), a knob (325) is threadedly connected to the outer wall of the screw (323), and a reset member is provided on the outer wall of the screw (323). The limiting block (324) can slide on the outer wall of the screw (323) and rotate on the outer wall of the screw (323).

7. The phenolic resin production equipment for safe feeding according to claim 6, characterized in that, The sealing element includes a sealing groove (318) formed on the front of the filter box (313), and a sealing ring (319) is fixedly connected to the back of the sealing cover (315). The rear end of the sealing ring (319) extends into the sealing groove (318).

8. The phenolic resin production equipment for safe feeding according to claim 7, characterized in that, The reset component includes a spring (326) wound around the outer wall of the screw (323), one end of the spring (326) being fixedly connected to the rectangular block (322), and the other end of the spring (326) being fixedly connected to the limiting block (324).

Images