Filter press for monosodium glutamate production

Abstract

The utility model relates to the technical field of monosodium glutamate production equipment, in particular to a filter press for monosodium glutamate production, which comprises a filter press main body, the filter press main body comprises a rack, an electric control cabinet and an automatic pulling plate system, the peripheral surface of the rack is coated with an epoxy micaceous iron primer layer, and the outer surface of the rack is coated with an epoxy micaceous iron primer layer. The periphery of the epoxy micaceous iron primer layer is coated with an acrylic polyurethane paint layer; when the filter press for monosodium glutamate production is manufactured, rust and oxide scales on the surfaces of the rack and accessories thereof are eliminated by high-speed centrifugal shot blasting, and then the rack can be directly coated with an acrylic polyurethane paint layer after being subjected to spraying treatment by an epoxy micaceous iron primer layer, so that the rack has the advantages of corrosion resistance, high tensile strength, good impact resistance and the like; through an overpressure test, the safety coefficient reaches 2.2 times, the use safety and stability can be ensured, the use requirement of a high-pressure filter plate can be met, the problem of deformation of the main beam of the filter press is thoroughly solved, and the filter press can produce monosodium glutamate more stably.

Description

TECHNICAL FIELD

[0001] The utility model relates to monosodium glutamate production equipment technical field, concretely relates to a kind of for monosodium glutamate production filter press. BACKGROUND

[0002] Monosodium glutamate chemical composition is sodium glutamate, is a kind of umami seasoning, easy to dissolve in water, its aqueous solution has strong umami, and when with salt, its taste is more fresh, and in the process of monosodium glutamate production needs to use filter press;But in the process of using filter press to produce monosodium glutamate, due to the influence of production environment factor, the rack of conventional filter press is prone to deformation condition, and the rack after deformation will lead to filter press inconvenient to use, if directly replacing rack is quite inconvenient.For this, we propose a kind of for monosodium glutamate production filter press. SUMMARY

[0003] In view of the problems in the prior art, the utility model provides a kind of for monosodium glutamate production filter press.

[0004] The utility model solves the technical scheme that it adopts for monosodium glutamate production filter press, including filter press main body, the filter press main body includes rack, electric control cabinet and automatic pull plate system, the rack outer circumferential surface is coated with epoxy cloud iron primer layer, and epoxy cloud iron primer layer outer circumferential is coated with acrylic polyurethane paint layer, the rack is slidably set with for monosodium glutamate filtering van filter plate body, filter frame body and polypropylene high-pressure diaphragm filter plate body, and van filter plate body, filter frame body and polypropylene high-pressure diaphragm filter plate body all have multiple groups;

[0005] The electric control cabinet is internally provided with the PLC core for controlling the filter press main body, and the PLC core control part is provided with a manual working state, an automatic working state, a maintenance working state and an automatic operation detection function, the electric control cabinet outer circumferential surface is equipped with the display screen electrically connected with the PLC core, and the electric control cabinet is internally provided with the DCS remote interface electrically connected with the PLC core;

[0006] The automatic pull plate system includes puller and variable frequency speed regulation motor, the rack outer circumferential surface is equipped with the slide electrically connected with puller, and slide has two groups, the puller top end surface is equipped with plate extractor, the rack is rotatably installed with straight shaft for transmission, and the outer circumferential surface of straight shaft and the power output end of variable frequency speed regulation motor are all equipped with synchronous wheel for transmission, the synchronous belt for transmission is assembled between two groups of synchronous wheels, and the outer circumferential surface both sides end surface of straight shaft and the outer circumferential both sides edge surface of rack are all equipped with sprocket, the chain for driving puller displacement is assembled between two groups of sprocket.

[0007] By adopting the above technical solution, when manufacturing the filter press for monosodium glutamate production, high-speed centrifugal shot blasting is used to eliminate rust and iron oxide scale on the surface of the frame and its accessories. Then, after spraying the epoxy micaceous iron primer layer, the acrylic polyurethane paint layer can be directly applied, so that the frame has the advantages of corrosion resistance, high tensile strength, and good impact resistance. After the overpressure test, the safety factor is 2.2 times, which can ensure safe and stable use and meet the use requirements of high-pressure filter plates. It also completely solves the problem of deformation of the main beam of the filter press, so that the filter press can produce monosodium glutamate more stably. At the same time, the frame consists of a base, a pressure plate, a thrust plate, and a main beam. The base, pressure plate and thrust plate are all made of Q345B medium plate, which is then welded using carbon dioxide shielded welding. After tempering and shaping, high-speed centrifugal shot blasting is used to remove rust and iron oxide. The main beam is made of Q345B bridge steel, adopts a box-type welding structure design and is processed using submerged arc automatic welding technology. High-speed centrifugal shot blasting is also used to remove rust and iron oxide. Epoxy micaceous iron primer and acrylic polyurethane paint can then be sprayed on its surface, which not only reduces production costs and protects the environment, but also improves the adhesion of the paint and the anti-corrosion level of the filter press, significantly extending the service life of the filter press.

[0008] When using the filter press for producing monosodium glutamate, the PLC core inside the electric control cabinet can control the operation of the filter press body. At the same time, its control part adopts the concept of system design, adds the automatic operation detection function, and according to the actual working conditions of the filter press body, the control part has three working states: manual working state during installation and commissioning, automatic working state during automatic operation, and maintenance working state during equipment inspection and maintenance. This makes it easier for the operator to use the filter press body, making monosodium glutamate production more convenient. At the same time, to prevent malfunctions, each moving part has an action interlock function for protection during automatic operation. Through the system's automatic detection and self-diagnosis, the system always automatically detects whether the actuator is in normal working condition. If there is an abnormality, it can immediately alarm on the display screen, ensuring the safe and reliable operation of the entire filter press body. At the same time, the PLC core control component has a DCS remote interface reserved for remote monitoring and remote control operations, making it easier for the filter press body to produce monosodium glutamate.

[0009] When the filter press for producing monosodium glutamate is in use, the variable frequency speed regulating motor inside the frame can operate and drive the synchronous wheel to rotate, and then the synchronous wheel drives the synchronous wheel on the periphery of the straight shaft to rotate through the synchronous belt, and the straight shaft also rotates accordingly, and then the straight shaft can drive the sprocket to rotate, and make the chain between the sprocket on the periphery of the straight shaft and the sprocket on the periphery of the frame run accordingly, so that the chain can drive the plate puller to move along the slideway on the periphery of the frame, and at the same time, the plate remover on the top of the plate puller can operate conveniently to drive the filter on the inside of the frame for filtering monosodium glutamate. The multiple groups of chamber filter plates, filter frames and polypropylene high-pressure diaphragm filter plates are moved in sequence to facilitate the production of monosodium glutamate. At the same time, the variable frequency motor driver with variable frequency speed regulation can automatically detect the current and running speed of the motor during operation. When the variable frequency motor drives the plate remover to remove the plate, the frequency converter automatically detects the overload signal of the variable frequency motor. The overload signal automatically controls the variable frequency motor to change the rotation direction to complete the automatic plate pulling process. The running torque of the variable frequency motor can be automatically set according to the running resistance of the filter plate in the filter press body.

[0010] When the chamber filter plate body, filter frame body and polypropylene high-pressure diaphragm filter plate body inside the filter press body are used, the arrangement of the chamber filter plate body, filter frame body and polypropylene high-pressure diaphragm filter plate body in the frame is: chamber filter plate body, filter frame body, polypropylene high-pressure diaphragm filter plate body and filter frame body, and then distributed in this order. At the same time, the chamber filter plate body is made of TPE elastomer and high-strength polypropylene, so that the filter plate has both the elasticity of the rubber filter plate and the toughness and rigidity of the polypropylene filter plate, so that the sealing performance of the filter plate is better when it is compressed, and the maximum tympanic membrane pressure of the polypropylene high-pressure diaphragm filter plate body reaches 4.0Mpa, so that it can be used more stably in the subsequent pressing stage.

[0011] Specifically, the filter press body further includes a hydraulic system, and the hydraulic system includes a hydraulic station and a hydraulic cylinder. The hydraulic station is electrically connected to the electric control cabinet, and the hydraulic cylinder is assembled on the outer end surface of the frame.

[0012] By adopting the above technical solution, when the filter press for producing monosodium glutamate is used, the hydraulic station in the hydraulic system can conveniently provide power for the hydraulic cylinder, and the hydraulic cylinder can provide power for the pressing plate during filtration. The hydraulic oil cylinder in the hydraulic cylinder is welded with 27SiMn seamless steel pipe, which is subjected to vibration aging treatment to eliminate the residual internal stress and then rough bored, fine bored and rolled. The overall precision reaches IT7 level. The piston rod in the hydraulic cylinder is made of 45 steel, which is ground and processed by medium frequency quenching. It is formed by hard chrome plating process, so that the surface hardness of the piston rod base can reach HRC48-50, which increases the service life of the piston rod by 5 times. It has the advantages of high hardness, good wear resistance, corrosion resistance and long service life, so that the hydraulic system can more stably provide power for the filter press when producing monosodium glutamate.

[0013] Specifically, the two side surfaces of the outer periphery of the frame are equipped with chain boxes located at the outer periphery of the chain.

[0014] By adopting the above technical scheme, the chain boxes are located at the outer periphery of the chain, facilitating the protection of the chain and ensuring the cleanliness and flexibility of the pull plate system.

[0015] Specifically, the outer periphery surface of the frame is equipped with a feeding pipe for filtering the feed of the chamber, and the outer wall surface of the frame is equipped with a water inlet pipe in communication with the polypropylene high-pressure diaphragm filter plate body.

[0016] By adopting the above technical scheme, the feeding pipe facilitates the flow of the suspended liquid to be treated, so that it can enter the filtering chamber for treatment. When the filter cake gradually accumulates and the feeding pressure gradually increases, and when the pressure in the filter plate is greater than the feeding pressure, this is called the dead machine of the filter press, and the filter press enters the pressing program. Then the high-pressure water enters the polypropylene high-pressure diaphragm filter plate body through the water inlet pipe, and the hollow diaphragm plate of the polypropylene high-pressure diaphragm filter plate body is inflated to extrude the filter cake, so as to discharge the water in the filter cake. After extrusion, the machine can be disassembled, the residue can be discharged, the filter cloth can be cleaned, and the material can be fed again.

[0017] Specifically, the outer wall surface of the polypropylene high-pressure diaphragm filter plate body is equipped with a discharge pipe for discharging the clear liquid.

[0018] By adopting the above technical scheme, the discharge pipe facilitates the discharge of the filtered filtrate, and can be discharged to a specified position for collection, facilitating the production of monosodium glutamate.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The technical scheme of the present application is designed by the rack, epoxy cloud iron primer layer and acrylic polyurethane paint layer. When manufacturing the filter press for monosodium glutamate production, the high-speed centrifugal shot blasting is used to eliminate the rust and oxide scale on the surface of the rack and its accessories. Then, after the epoxy cloud iron primer layer is sprayed and treated, the acrylic polyurethane paint layer can be directly applied, so that the rack has the advantages of corrosion resistance, high tensile strength and good impact resistance. After the super pressure test, the safety factor reaches 2.2 times, which can ensure safe and stable use and meet the use requirements of high-pressure filter plates. The problem of deformation of the main beam of the filter press is solved, so that the filter press can produce monosodium glutamate more stably. The rack is composed of a base, a compression plate, a thrust plate and a main beam. The base, compression plate and thrust plate are made of Q345B medium plate, then formed by carbon dioxide shielded welding, and after tempering and shaping, the rust and oxide scale are eliminated by high-speed centrifugal shot blasting. The main beam is made of Q345B bridge steel, which is designed as a box type welding structure and processed by submerged arc automatic welding process, and then the rust and oxide scale are also eliminated by high-speed centrifugal shot blasting. Then, the epoxy cloud iron primer layer and the acrylic polyurethane paint layer are sprayed on the surface. This not only reduces the production cost and protects the environment, but also improves the adhesion of the paint and the corrosion resistance of the filter press, so that the service life of the filter press is significantly improved.

[0021] 2. The technical scheme of the present application is designed by the chamber filter plate body, filter frame body and polypropylene high-pressure diaphragm filter plate body. When the chamber filter plate body, filter frame body and polypropylene high-pressure diaphragm filter plate body inside the filter press body are used, the arrangement of the chamber filter plate body, filter frame body and polypropylene high-pressure diaphragm filter plate body in the rack is: chamber filter plate body, filter frame body, polypropylene high-pressure diaphragm filter plate body and filter frame body, which are distributed in this order in sequence. The material of the chamber filter plate body is TPE elastomer and high-strength polypropylene, which makes the filter plate have the elasticity of rubber filter plate and the toughness and rigidity of polypropylene filter plate, so that the sealing performance of the filter plate is better when it is compressed. The maximum drum membrane pressure of the polypropylene high-pressure diaphragm filter plate body reaches 4.0Mpa, so that it can be used more stably in the subsequent pressing stage.

[0022] 3. The technical solution of this application is designed with an electric control cabinet, a PLC core, an automatic operation detection function, a manual working state, an automatic working state, a maintenance working state, a display screen and a DCS remote interface. When the filter press used to produce monosodium glutamate is used, the PLC core inside the electric control cabinet can control the operation of the filter press body. At the same time, its control part adopts the concept of system design, adds an automatic operation detection function, and according to the actual working conditions of the filter press body, the control part has three working states: a manual working state during installation and debugging, an automatic working state during automatic operation, and a maintenance working state during equipment inspection and maintenance. The system can automatically detect whether the actuator is in normal working state through the system's automatic detection and self-diagnosis. If there is any abnormality, it can immediately alarm on the display screen, ensuring the safe and reliable operation of the entire filter press. At the same time, the PLC core control component has a DCS remote interface reserved for remote monitoring and remote control operations, so that the filter press can produce monosodium glutamate more conveniently.

[0023] 4. The technical solution of the present application is designed through the automatic plate pulling system, slide, plate puller, plate remover, straight shaft, variable frequency speed regulating motor, synchronous wheel, synchronous belt, sprocket and chain. When the filter press for producing monosodium glutamate is used, the variable frequency speed regulating motor inside the frame can operate and drive the synchronous wheel to rotate, and then the synchronous wheel drives the synchronous wheel on the periphery of the straight shaft to rotate through the synchronous belt, and the straight shaft also rotates accordingly, and then the straight shaft can drive the sprocket to rotate, and make the chain between the sprocket on the periphery of the straight shaft and the sprocket on the periphery of the frame run accordingly, so that the chain can drive the plate puller to move along the slideway on the periphery of the frame At the same time, the plate remover on the top of the plate puller is easy to operate and drives the multiple groups of chamber filter plates, filter frames and polypropylene high-pressure diaphragm filter plates on the inside of the frame for filtering monosodium glutamate to move in sequence, which is convenient for the production of monosodium glutamate. At the same time, the variable frequency motor driver of the variable frequency speed regulation motor can automatically detect the current and operating speed of the motor during operation. When the variable frequency motor drives the plate remover to remove the plate, the frequency converter automatically detects the overload signal of the variable frequency motor. The overload signal automatically controls the variable frequency motor to change the rotation direction to complete the automatic plate pulling process. The operating torque of the variable frequency motor can be set according to the operating resistance of the filter plate in the filter press body. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is an axonometric drawing of the present utility model;

[0026] Figure 2This is a structural diagram of the automatic plate pulling system of the present utility model;

[0027] Figure 3 This is a schematic diagram of the frame seat structure of the present utility model;

[0028] Figure 4 This is a schematic diagram of the hydraulic system structure of the utility model;

[0029] Figure 5 This is a schematic diagram of the PLC core functional structure inside the electric control cabinet of the utility model;

[0030] In the figure: 1. Filter press body; 2. Frame; 201. Epoxy micaceous iron primer layer; 202. Acrylic polyurethane paint layer; 3. Hydraulic system; 301. Hydraulic station; 302. Hydraulic cylinder; 4. Electric control cabinet; 401. PLC core; 402. Automatic operation detection function; 403. Manual working state; 404. Automatic working state; 405. Maintenance working state; 406. Display screen; 407. DCS remote interface; 5. Automatic plate pulling system; 501. Slide; 502. Plate puller; 503. Plate remover; 504. Straight shaft; 505. Variable frequency speed regulating motor; 506. Synchronous pulley; 507. Synchronous belt; 508. Sprocket; 509. Chain; 510. Chain box; 6. Chamber filter plate body; 7. Filter frame; 8. Polypropylene high-pressure diaphragm filter plate body; 9. Feed pipe; 10. Water inlet pipe; 11. Discharge pipe. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0032] See also Figures 1-5The utility model embodiment provides a kind of technical scheme: a kind of filter press for monosodium glutamate production, including filter press main body 1, filter press main body 1 includes rack 2, electric control cabinet 4 and automatic pull plate system 5, rack 2 outer peripheral surface is coated with epoxy cloud iron primer layer 201, and epoxy cloud iron primer layer 201 outer peripheral coating has acrylic polyurethane paint layer 202, slidingly set in rack 2 there is for monosodium glutamate filtering van filter plate body 6, filter frame body 7 and polypropylene high-pressure diaphragm filter plate body 8, and van filter plate body 6, filter frame body 7 and polypropylene high-pressure diaphragm filter plate body 8 all have multiple groups;PLC core 401 for controlling filter press main body 1 is provided in electric control cabinet 4, and PLC core 401 control part is provided with manual working state 403, automatic working state 404, maintenance working state 405 and automatic operation detection function 402, and the outer peripheral surface of electric control cabinet 4 is equipped with the display screen 406 electrically connected with PLC core 401, and the inside of electric control cabinet 4 is provided with the DCS remote interface 407 electrically connected with PLC core 401;Automatic pull plate system 5 includes pull plate ware 502 and variable frequency speed regulation motor 505, the outer peripheral surface of rack 2 is equipped with the slide 501 slidingly connected with pull plate ware 502, and slide 501 has two groups, pull plate ware 502 top surface is equipped with plate extractor 503, rotatingly installed in rack 2 there is for transmission straight shaft 504, and the outer peripheral of straight shaft 504 and variable frequency speed regulation motor 505 power output end are all equipped with for transmission synchronous wheel 506, two groups of synchronous wheel 506 are equipped with for transmission synchronous belt 507 between, and the outer peripheral both sides end surface of straight shaft 504 and the outer peripheral both sides edge surface of rack 2 are all equipped with chain wheel 508, two groups of chain wheel 508 are equipped with chain 509 for driving pull plate ware 502 displacement between.

[0033] In use, when the filter press for monosodium glutamate production is manufactured, the high-speed centrifugal shot blasting is used to eliminate the rust and oxide skin on the surface of the frame 2 and its accessories, and then the epoxy cloud iron primer layer 201 is sprayed, and then the acrylic polyurethane paint layer 202 can be directly coated, so that the frame 2 has the advantages of corrosion resistance, high tensile strength and good impact resistance. After the super pressure test, the safety factor reaches 2.2 times, which can ensure the safety and stability of use, can meet the use requirements of high-pressure filter plate, and completely solve the problem of deformation of the main beam of the filter press, so that the filter press can more stably produce monosodium glutamate. The frame 2 is composed of a base, a pressing plate, a thrust plate and a main beam, and the base, the pressing plate and the thrust plate are made of Q345B medium plate, and then are formed by carbon dioxide protective welding, and after tempering and shaping, the rust and oxide skin are eliminated by high-speed centrifugal shot blasting. The main beam is made of Q345B bridge steel, which is designed in a box type welding structure and processed by submerged arc automatic welding process, and then the rust and oxide skin are also eliminated by high-speed centrifugal shot blasting. Then the epoxy cloud iron primer layer 201 and the acrylic polyurethane paint layer 202 are sprayed on the surface. Not only can it reduce production cost and protect the environment, but also can improve the adhesion of paint and the corrosion resistance of the filter press, so that the service life of the filter press is significantly improved.

[0034] When the filter press for producing monosodium glutamate is used, the PLC core 401 in the electric control cabinet 4 can control the operation of the filter press body 1. The control part adopts the concept of system design, increases the automatic operation detection function 402, and according to the actual working condition of the filter press body 1, the control part has three working conditions: the manual working condition 403 during installation and debugging, the automatic working condition 404 during automatic operation, and the maintenance working condition 405 during equipment maintenance and maintenance. The operator can more conveniently use the filter press body 1, so that the production of monosodium glutamate is more convenient. In order to prevent misoperation, each moving part has a motion interlocking function for protection during automatic operation. Through the automatic detection and self-diagnosis of the system, if there is an abnormality, the system can immediately alarm on the display screen 406, which ensures the safe and reliable operation of the entire filter press body 1. At the same time, the PLC core control part reserves a DCS remote interface 407, which can realize remote monitoring and remote control, so that the filter press body 1 can more conveniently produce monosodium glutamate;

[0035] When the filter press for producing monosodium glutamate is in use, the variable frequency speed regulating motor 505 inside the frame 2 can operate and drive the synchronous wheel 506 to rotate, and then the synchronous wheel 506 drives the synchronous wheel 506 on the periphery of the straight shaft 504 to rotate through the synchronous belt 507, and the straight shaft 504 also rotates accordingly, and then the straight shaft 504 can drive the sprocket 508 to rotate, and make the chain 509 between the sprocket 508 on the periphery of the straight shaft 504 and the sprocket 508 on the periphery of the frame 2 run accordingly, and the chain 509 can drive the puller 502 to move along the slideway 501 on the periphery of the frame 2, and at the same time the puller 502 pushes the top of the plate. The plate remover 503 in the upper part is convenient to operate, driving the multiple groups of chamber filter plates 6, filter frame bodies 7 and polypropylene high-pressure diaphragm filter plates 8 for filtering monosodium glutamate inside the frame 2 to move in sequence, which is convenient for the production of monosodium glutamate. At the same time, the variable frequency motor driver of the variable frequency speed regulating motor 505 can automatically detect the current and running speed of the motor during operation. When the variable frequency motor drives the plate remover 503 to remove the plate, the frequency converter automatically detects the overload signal of the variable frequency motor. The overload signal automatically controls the variable frequency motor to change the rotation direction, completing the automatic plate pulling process. The running torque of the variable frequency motor can be set automatically according to the running resistance of the filter plate in the filter press body.

[0036] When the chamber filter plate body 6, filter frame body 7 and polypropylene high-pressure diaphragm filter plate body 8 inside the filter press body 1 are used, the chamber filter plate body 6, filter frame body 7 and polypropylene high-pressure diaphragm filter plate body 8 are arranged in the frame 2 as follows: chamber filter plate body 6, filter frame body 7, polypropylene high-pressure diaphragm filter plate body 8 and filter frame body 7, and are subsequently distributed in this order. At the same time, the chamber filter plate body 6 is made of TPE elastomer and high-strength polypropylene, so that the filter plate has both the elasticity of a rubber filter plate and the toughness and rigidity of a polypropylene filter plate, so that the sealing performance of the filter plate is better when it is compressed, and the maximum tympanic membrane pressure of the polypropylene high-pressure diaphragm filter plate body 8 reaches 4.0Mpa, so that it can be used more stably in the subsequent pressing stage.

[0037] like Figure 1 and Figure 4 As shown, the filter press body 1 also includes a hydraulic system 3, and the hydraulic system 3 includes a hydraulic station 301 and a hydraulic cylinder 302, the hydraulic station 301 is electrically connected to the electric control cabinet 4, and the hydraulic cylinder 302 is assembled on the outer end surface of the frame 2.

[0038] During use, when the filter press for producing monosodium glutamate is used, the hydraulic station 301 in the hydraulic system 3 conveniently provides power for the hydraulic cylinder 302, and enables the hydraulic cylinder 302 to provide power for the pressing plate during filtration. The hydraulic oil cylinder in the hydraulic cylinder 302 is welded with 27SiMn seamless steel pipe, and is subjected to vibration aging treatment to eliminate its internal residual internal stress, and then rough bored, fine bored, and rolled. The overall precision reaches IT7 level. The piston rod in the hydraulic cylinder 302 is made of 45 steel and is ground. After medium frequency quenching treatment, it is formed by hard chrome plating process, so that the surface hardness of the piston rod base can reach HRC48-50, which increases the service life of the piston rod by 5 times. It has the advantages of high hardness, good wear resistance, corrosion resistance, and long service life, so that the hydraulic system 3 can more stably provide power for the filter press when producing monosodium glutamate.

[0039] like Figure 1 、 Figure 2 and Figure 3 As shown, both side surfaces of the outer periphery of the frame 2 are equipped with chain boxes 510 located on the outer periphery of the chain 509.

[0040] When in use, the chain box 510 is located on the periphery of the chain 509, which is convenient for protecting the chain 509 and ensuring the cleanliness and flexibility of the pull plate system.

[0041] like Figure 1 As shown, the outer peripheral surface of the frame 2 is equipped with a feed pipe 9 for feeding the filter chamber, and the outer wall surface of the frame 2 is equipped with a water inlet pipe 10 connected to the polypropylene high-pressure diaphragm filter plate body 8.

[0042] During use, the feed pipe 9 facilitates the diversion of the suspension to be treated so that it can enter the filter chamber for treatment. When the filter cake gradually accumulates, the feed pressure gradually increases. At the same time, when the pressure in the filter plate is greater than the feed pressure, this is called the filter press crash. The filter press enters the squeezing program, and then allows high-pressure water to enter the polypropylene high-pressure diaphragm filter plate body 8 through the water inlet pipe 10. The hollow diaphragm plate in the polypropylene high-pressure diaphragm filter plate body 8 bulges to squeeze the filter cake, and discharge the moisture in the filter cake. After squeezing, the machine can be disassembled to discharge slag, clean the filter cloth, and re-feed.

[0043] like Figure 1 As shown, the outer wall surface of the polypropylene high-pressure diaphragm filter plate body 8 is equipped with a discharge pipe 11 for discharging clear liquid.

[0044] When in use, the discharge pipe 11 is convenient for discharging the filtered filtrate and can be discharged to a designated location for collection, which is convenient for the production of monosodium glutamate.

[0045] The working principle and use process of the utility model are as follows: when in use, first install the corresponding structural components in the appropriate position. When manufacturing the filter press for monosodium glutamate production, high-speed centrifugal shot blasting is used to eliminate rust and iron oxide on the surface of the frame 2 and its accessories. Then, after spraying the epoxy micaceous iron primer layer 201, the acrylic polyurethane paint layer 202 can be directly applied, so that the frame 2 has the advantages of corrosion resistance, high tensile strength, and good impact resistance. After the overpressure test, the safety factor is 2.2 times, which can ensure safe and stable use, meet the use requirements of the high-pressure filter plate, and completely solve the problem of deformation of the main beam of the filter press, so that the filter press can It is able to produce monosodium glutamate more stably. At the same time, the frame 2 is composed of a machine base, a clamping plate, a thrust plate, and a main beam. The material of the machine base, the clamping plate and the thrust plate are all made of Q345B medium plate, which are then welded by carbon dioxide shielded welding. After tempering and shaping, high-speed centrifugal shot blasting is used to eliminate rust and iron oxide. The main beam is made of Q345B bridge steel, which adopts a box-type welding structure design and is processed using submerged arc automatic welding technology. Then, high-speed centrifugal shot blasting is also used to eliminate rust and iron oxide. Then, the epoxy micaceous iron primer layer 201 and the acrylic polyurethane paint layer 202 can be sprayed on its surface, which can not only reduce production costs but also protect the environment. environment, and at the same time can improve the adhesion of paint and the anti-corrosion level of the filter press, so that the service life of the filter press is significantly improved. When the filter press for producing monosodium glutamate is used, the PLC core 401 inside the electric control cabinet 4 can control the operation of the filter press body 1. At the same time, its control part adopts the concept of system design, adds an automatic operation detection function 402, and according to the actual working conditions of the filter press body 1, the control part has three working states, namely, a manual working state 403 during installation and debugging, an automatic working state 404 during automatic operation, and a maintenance working state 405 during equipment inspection and maintenance, which is convenient for operation. The author can use the filter press main body 1 more conveniently, making the production of monosodium glutamate more convenient. At the same time, in order to prevent the occurrence of malfunction, each moving part has an action interlock function for protection during automatic operation. Through the system's automatic detection and self-diagnosis, the system always automatically detects whether the actuator is in a normal working state. If there is an abnormality, an alarm can be immediately issued on the display screen 406, ensuring the safe and reliable operation of the entire filter press main body 1. At the same time, the PLC core control component has a DCS remote interface 407 reserved, which can realize remote monitoring and remote control operations, so that the filter press main body 1 can produce monosodium glutamate more conveniently.

[0046] In the use of the filter press for producing monosodium glutamate, the variable frequency motor 505 inside the rack 2 can operate and drive the synchronous wheel 506 to rotate, then the synchronous wheel 506 drives the synchronous wheel 506 on the outer periphery of the straight shaft 504 to rotate through the synchronous belt 507, and the straight shaft 504 also rotates, then the straight shaft 504 can drive the sprocket 508 to rotate, and the chain 509 between the sprocket 508 on the outer periphery of the straight shaft 504 and the sprocket 508 on the outer periphery of the rack 2 is also operated, so that the chain 509 can drive the pull plate device 502 to displace along the slide 501 on the outer periphery of the rack 2, and the plate taking device 503 on the top of the pull plate device 502 operates to conveniently drive the plurality of compartment filter plate bodies 6, filter frame bodies 7 and polypropylene high-pressure diaphragm filter plate bodies 8 inside the rack 2 for filtering monosodium glutamate to move in turn, facilitating the production of monosodium glutamate, and the variable frequency motor driver of the variable frequency motor 505 can automatically detect the current and operating speed of the motor during operation. When the variable frequency motor drives the plate taking device 503 to take the plate, the frequency converter automatically detects the overload signal of the variable frequency motor, which automatically controls the variable frequency motor to change the rotating direction to complete the automatic plate pulling process. The operating torque of the variable frequency motor can be set according to the operating resistance of the filter plate in the filter press main body, and when the compartment filter plate body 6, filter frame body 7 and polypropylene high-pressure diaphragm filter plate body 8 inside the filter press main body 1 are used, the arrangement of the compartment filter plate body 6, filter frame body 7 and polypropylene high-pressure diaphragm filter plate body 8 in the rack 2 is: compartment filter plate body 6, filter frame body 7, polypropylene high-pressure diaphragm filter plate body 8 and filter frame body 7, and then distributed in this order in turn. The material of the compartment filter plate body 6 is TPE elastomer and high-strength polypropylene, which makes the filter plate have the elasticity of rubber filter plate and the toughness and rigidity of polypropylene filter plate, so that the sealing performance of the filter plate is better when the filter plate is compressed. The maximum drum membrane pressure of the polypropylene high-pressure diaphragm filter plate body 8 reaches 4.0Mpa, so that it can be used more stably in the subsequent pressing stage. The hydraulic station 301 in the hydraulic system 3 can conveniently provide power for the hydraulic cylinder 302, and the hydraulic cylinder 302 can provide power for the compression plate during compression, facilitating the production of monosodium glutamate. The hydraulic oil cylinder in the hydraulic cylinder 302 is welded from 27SiMn seamless steel pipe, and after the internal residual stress is eliminated by vibration aging treatment, it is rough bored, fine bored and rolled to form, and all the precision reaches IT7 level. The material of the piston rod in the hydraulic cylinder 302 is 45 steel which is ground and processed, and then is formed by hard chromium plating process after medium frequency quenching treatment, so that the surface hardness of the piston rod base can reach HRC48-50, the service life of the piston rod is improved by 5 times, and it has the advantages of high hardness, good wear resistance, corrosion resistance and long service life, so that the hydraulic system 3 can provide power for the filter press more stably during the production of monosodium glutamate. The process of the filter press for producing monosodium glutamate is:

[0047] 1. Feeding stage: The MSG starch slurry to be processed enters the filter chamber of the filter press body 1 through the feed pipe 9. The water passes through the pores of the filter cloth outside the chamber filter plate 6, while the starch slurry gradually accumulates on the filter cloth. The water gradually penetrates through the filter phase pores of the filter cloth under the action of the pressure difference and can be discharged from the discharge pipe 11, while the relatively dry MSG starch slurry gradually accumulates on the filter cloth;

[0048] 2. Pressing stage: When the starch slurry on the filter cloth gradually accumulates, the feed pressure will gradually increase. When the pressure in the chamber filter plate body 6 is greater than the feed pressure, the filter press is called dead. The filter press body 1 enters the pressing program, and then allows high-pressure water to enter the polypropylene high-pressure diaphragm filter plate body 8 through the water inlet pipe 10. The hollow diaphragm plate in the polypropylene high-pressure diaphragm filter plate body 8 bulges to further squeeze the starch slurry, so that the residual water in the starch slurry can be squeezed out again, and the filtration effect of the starch slurry is improved. After squeezing, the machine can be disassembled so that the drier starch slurry can be discharged, which is convenient for subsequent processing. Then the filter cloth can be cleaned and re-fed.

[0049] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A filter press for monosodium glutamate production, characterized in that: The invention comprises a filter press body (1), wherein the filter press body (1) comprises a frame (2), an electric control cabinet (4) and an automatic plate pulling system (5); the outer peripheral surface of the frame (2) is coated with an epoxy micaceous iron primer layer (201), and the outer periphery of the epoxy micaceous iron primer layer (201) is coated with an acrylic polyurethane paint layer (202); a chamber filter plate body (6), a filter frame body (7) and a polypropylene high-pressure diaphragm filter plate body (8) for MSG filtering are slidably arranged in the frame (2), and the chamber filter plate body (6), the filter frame body (7) and the polypropylene high-pressure diaphragm filter plate body (8) are provided in a plurality of groups; The electric control cabinet (4) is provided with a PLC core (401) for controlling the filter press body (1), and the control part of the PLC core (401) is provided with a manual working state (403), an automatic working state (404), a maintenance working state (405) and an automatic operation detection function (402); the outer surface of the electric control cabinet (4) is equipped with a display screen (406) electrically connected to the PLC core (401), and the electric control cabinet (4) is provided with a DCS remote interface (407) electrically connected to the PLC core (401); The automatic plate pulling system (5) comprises a plate pulling device (502) and a variable frequency speed regulating motor (505), the outer peripheral surface of the frame (2) is equipped with a slideway (501) slidably connected to the plate pulling device (502), and there are two groups of slideways (501), the top surface of the plate pulling device (502) is equipped with a plate taker (503), a straight shaft (504) for transmission is rotatably installed in the frame (2), and the outer periphery of the straight shaft (504) and the power output end of the variable frequency speed regulating motor (505) are both equipped with synchronous wheels (506) for transmission, a synchronous belt (507) for transmission is installed between the two groups of synchronous wheels (506), and the outer side end surfaces of the straight shaft (504) and the outer side side surfaces of the frame (2) are both equipped with sprockets (508), and a chain (509) for driving the plate pulling device (502) to move is installed between the two groups of sprockets (508).

2. The filter press for monosodium glutamate production according to claim 1, characterized in that: The filter press body (1) further comprises a hydraulic system (3), and the hydraulic system (3) comprises a hydraulic station (301) and a hydraulic cylinder (302), wherein the hydraulic station (301) is electrically connected to the electric control cabinet (4), and the hydraulic cylinder (302) is mounted on the outer end surface of the frame (2).

3. The filter press for monosodium glutamate production according to claim 1, characterized in that: Both side surfaces of the outer periphery of the frame (2) are equipped with chain boxes (510) located on the outer periphery of the chain (509).

4. The filter press for monosodium glutamate production according to claim 1, characterized in that: The outer peripheral surface of the frame (2) is equipped with a feed pipe (9) for feeding the filter chamber, and the outer wall surface of the frame (2) is equipped with a water inlet pipe (10) connected to the polypropylene high-pressure diaphragm filter plate body (8).

5. The filter press for monosodium glutamate production according to claim 1, characterized in that: The outer wall surface of the polypropylene high-pressure diaphragm filter plate body (8) is equipped with a discharge pipe (11) for discharging clear liquid.

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