Ethyl hydroxyethyl cellulose synthesis catalysis device

Abstract

The invention relates to the technical field of synthesis catalysis, in particular to an ethyl hydroxyethyl cellulose synthesis catalysis device which comprises a synthesis tank. The fixed frame is fixedly mounted on the top surface of the synthesis tank; and the driving motor is fixedly mounted on the inner side wall of the fixing frame. Compared with the prior art, the stirring assembly is arranged, the stirring rod is driven by the driving motor to rotate, meanwhile, the lifting assembly enables the stirring rod to slide back and forth in the vertical direction, the double stirring mode not only enhances the stirring uniformity, but also promotes sufficient mixing of materials in the synthesis tank, and is beneficial to accelerating the catalytic reaction rate; and meanwhile, when the stirring rod ascends and descends, the stirring plate is driven by the rotating shaft to do composite motion of revolution and autorotation, so that not only is the stirring coverage area increased, but also the stirring fineness is improved, materials in the synthesis tank can reach a uniform state more quickly, and the product quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of synthetic catalysis, in particular to an ethyl hydroxyethyl cellulose synthetic catalytic device. Background Art

[0002] Ethyl hydroxyethyl cellulose is a synthetic cellulose derivative obtained by reacting ethyl cellulose with hydroxyethyl compounds. It usually exists in powder form and is soluble in water and some organic solvents. Ethyl hydroxyethyl cellulose has a significant thickening effect and can increase the viscosity of the liquid. Under certain conditions, it can form a gel-like substance with the ability to stabilize the colloidal structure and show good stability in a variety of environments, which helps to maintain the physical and chemical properties of the product.

[0003] After searching, the Chinese patent with publication number CN219701907U discloses a catalytic device for synthesizing allyl hexanoate, including a reactor, the upper surface of the reactor is fixedly connected with a motor, the output shaft of the motor is connected with a connecting shaft, and the outer surface of the connecting shaft is fixedly connected with a stirring plate. The utility model injects sulfuric acid into the inner side of a sulfuric acid bottle, and then presses the clamping plate to shrink the spring, thereby causing the fixed column to slide on the inner side of the slide groove, and then puts the sulfuric acid bottle into the inner side of the fixed plate, and under the elastic action of the spring, the clamping plate clamps the sulfuric acid bottle, and then the sulfuric acid in the sulfuric acid bottle is injected into the inner side of the reactor through a connecting pipe, so that it catalyzes hexanoic acid and propylene alcohol to obtain allyl hexanoate. In this way, it is possible to avoid the situation of direct pouring of sulfuric acid, splashing, and causing injuries to personnel. However, the above scheme still has the following shortcomings when actually used:

[0004] In the synthesis process of ethyl hydroxyethyl cellulose (EHEC), an important chemical raw material, catalytic esterification reaction is one of the key steps, which directly affects the quality and production efficiency of the final product. However, the existing synthesis process traditionally relies on a stirring paddle for mixing the catalyst and the esterifying agent solution. Although it can achieve the basic mixing function, it has limitations in its stirring method, such as uneven distribution of stirring force, low mixing efficiency, and inability to form sufficient contact and reaction interface on a microscopic scale, resulting in low mass transfer efficiency between the catalyst and the esterifying agent solution, which in turn restricts the rate and degree of the esterification reaction. This uneven mixing not only prolongs the reaction time, increases energy consumption and production costs, but may also cause side reactions due to excessive or slow local reactions, affecting the purity and yield of the product.

[0005] Therefore, the present application provides an ethyl hydroxyethyl cellulose synthesis catalytic device to meet the high stirring efficiency of the catalytic reaction. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide an ethyl hydroxyethyl cellulose synthesis catalytic device to solve the current problem of low stirring efficiency of the catalyst and esterification agent solution.

[0007] Based on the above purpose, the present invention provides an ethyl hydroxyethyl cellulose synthesis catalytic device, comprising:

[0008] Synthetic tank;

[0009] A fixing frame, fixedly mounted on the top surface of the synthesis tank;

[0010] A driving motor is fixedly mounted on the inner wall of the fixing frame;

[0011] A connecting sleeve, fixedly mounted at the output end of the driving motor;

[0012] A stirring rod is rotatably mounted on the inner bottom wall of the synthesis tank, and the top end of the stirring rod passes through the synthesis tank and the inner side wall of the connecting sleeve and is slidably connected with the slider through a sliding groove;

[0013] A fixed sleeve, fixedly mounted on the bottom surface of the synthesis tank;

[0014] A catalyst tank, fixedly mounted on the top outer wall of the synthesis tank;

[0015] A lifting assembly, arranged on the inner side of the fixed sleeve, for lifting and lowering the stirring rod;

[0016] A stirring assembly, arranged on the inner wall of the synthesis tank, for stirring the catalytic reaction;

[0017] A feeding assembly is arranged at the top of the synthesis tank and is used for adding catalyst.

[0018] Preferably, the lifting assembly comprises:

[0019] A lifting rod is arranged through the bottom surface of the synthesis tank, and the top end of the lifting rod is rotatably connected to the bottom end of the stirring rod;

[0020] Two guide bars are symmetrically fixedly mounted on the outer wall of the lifting rod, and the bottom surface of the synthesis tank is symmetrically provided with guide grooves corresponding to the guide bars;

[0021] Two winding rollers are symmetrically fixedly mounted on the bottom end of the lifting rod;

[0022] Two groups of copper wire coils are arranged on the inner sides of the two winding rollers, and the two groups of copper wire coils are electrically connected;

[0023] Two conductive sheets are respectively fixedly mounted on the bottom outer walls of the two winding rollers, and the two conductive sheets are respectively electrically connected to the two groups of copper wire rolls;

[0024] Two fixing blocks are symmetrically fixedly mounted on the inner side wall of the fixing sleeve;

[0025] Two groups of strong magnetic sheets are symmetrically arranged on opposite sides of the two fixing blocks;

[0026] The trigger mechanism is arranged at the bottom end of the fixed sleeve.

[0027] Preferably, the trigger mechanism comprises:

[0028] Two electrode sheets are respectively fixedly mounted on the bottom surfaces of the two fixing blocks;

[0029] A conductive rod, fixedly mounted at the bottom end of the lifting rod, wherein a power line is mounted on the conductive rod and one of the two electrode sheets;

[0030] An electric contact piece is fixedly mounted on the bottom end of the fixed sleeve through a mounting frame, and the electric contact piece is electrically connected to the other electrode piece of the two electrode pieces through a wire.

[0031] Preferably, the relative magnetic poles of the lower group of the two groups of strong magnetic sheets are the same, and the relative magnetic poles of the upper group of the two groups of strong magnetic sheets are opposite.

[0032] Preferably, the stirring assembly comprises:

[0033] A guide frame, fixedly mounted on the inner top wall of the synthesis tank;

[0034] Two guide plates are symmetrically slidably mounted on the inner side wall of the guide frame, and an inner cavity is provided inside the guide plates;

[0035] A plurality of guide openings are arranged in a linear array on opposite sides of the two guide plates;

[0036] A plurality of rotating shafts are symmetrically distributed in a linear array and rotatably mounted on the outer wall of the stirring rod, and one end of the rotating shaft away from the stirring rod passes through the guide opening and is located in the inner cavity;

[0037] A plurality of transmission gears are respectively fixedly mounted on one end of a plurality of the rotating shafts located inside the inner cavity;

[0038] A plurality of groups of fixed teeth are respectively fixedly mounted on the inner side walls at positions corresponding to the two inner cavities and the guide openings, each group of fixed teeth is distributed in a linear array, and the fixed teeth are meshed with the transmission gear;

[0039] A plurality of sealing plates are fixedly sleeved on the outer walls of the plurality of rotating shafts, and the side surfaces of the sealing plates are in contact with the side surfaces of the guide plates;

[0040] A plurality of stirring plates are distributed in a circular array and fixedly installed on the outer surfaces of a plurality of the rotating shafts.

[0041] Preferably, the diameter of the rotating shaft is the same as the width of the guide opening, and the width of the sealing plate is at least greater than the width of the guide opening.

[0042] Preferably, the feeding assembly comprises:

[0043] An eccentric wheel fixedly sleeved on the outer surface wall of the connecting sleeve;

[0044] A connecting frame, fixedly mounted on the top surface of the synthesis tank;

[0045] A slide bar, slidably mounted on the inner wall of the connecting frame;

[0046] A sliding frame is fixedly mounted on one end of the sliding rod, and the sliding frame is located on the outer wall of the eccentric wheel;

[0047] A bracket, fixedly mounted on the top surface of the synthesis tank;

[0048] A sealing cylinder, fixedly mounted on the top of the bracket;

[0049] A piston plate is slidably mounted on the inner wall of the sealing cylinder, and one end of the sliding rod away from the sliding frame is fixedly connected to the side surface of the piston plate;

[0050] A liquid inlet pipe is arranged on the top surface of the catalyst tank, and two ends of the liquid inlet pipe are respectively connected with the catalyst tank and the end of the sealing cylinder;

[0051] The liquid outlet pipe is arranged on the top surface of the synthesis tank, and the two ends of the liquid outlet pipe are respectively connected with the ends of the synthesis tank and the sealing cylinder.

[0052] Preferably, one-way valves with opposite flow directions are installed on the inner sides of the liquid inlet pipe and the liquid outlet pipe, and the outer wall of the eccentric wheel is in contact with the inner wall of the sliding frame.

[0053] Preferably, the side surface of the conductive sheet and the side surface of the electrode sheet are in contact with each other, and the lifting rod, the guide bar, the winding roller, the fixing block and the fixing sleeve are all made of insulating material.

[0054] Preferably, the outer wall of the synthesis tank is provided with a material opening, and the inner wall of the material opening is provided with a sealing baffle.

[0055] Beneficial effects of the present invention:

[0056] 1. The ethyl hydroxyethyl cellulose synthesis catalytic device is provided with a lifting component. When the driving motor is started, the two groups of copper wire coils are energized through circuit control. The energized copper wire coils will generate magnetic flux lines, which interact with the strong magnetic sheets installed on the lifting rods. Due to the attraction and repulsion of the magnetic force, the lifting rods start to reciprocate in the vertical direction under the drive of the electromagnetic force, realizing a non-contact driving mode. Compared with traditional mechanical transmission, the non-contact drive reduces the friction and wear between parts, thereby extending the service life of the equipment. At the same time, due to the rapid response and precise control of the electromagnetic force, the reciprocating motion of the lifting rod is smoother and more reliable, which helps to improve the uniformity and efficiency of stirring.

[0057] 2. The ethyl hydroxyethyl cellulose synthesis catalytic device is provided with a stirring assembly, wherein the stirring rod rotates under the drive of a driving motor, and the lifting assembly enables the stirring rod to realize vertical reciprocating sliding. This dual stirring mode not only enhances the uniformity of stirring, but also promotes the full mixing of the materials in the synthesis tank, which is beneficial to accelerate the catalytic reaction rate and improve the synthesis efficiency of ethyl hydroxyethyl cellulose. At the same time, when the stirring rod is lifted and lowered, the stirring plate is driven by the rotating shaft to perform a composite motion of revolution and rotation, which not only increases the coverage area of ​​stirring, but also improves the fineness of stirring, so that the materials in the synthesis tank can reach a uniform state more quickly, which is beneficial to improving product quality.

[0058] 3. The ethyl hydroxyethyl cellulose synthesis catalytic device is provided with a feeding assembly. The eccentric wheel rotates under the drive of the driving motor. The piston plate slides back and forth in the sealing cylinder through the transmission of the sliding rod and the sliding frame. With the function of the one-way valve, the catalyst is automatically, quantitatively and intermittently fed. This automatic feeding method not only improves the production efficiency, but also reduces the error of manual operation, ensuring the precise control of the catalytic reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0060] Figure 1 This is a schematic diagram of the three-dimensional first-viewing angle structure of the present invention;

[0061] Figure 2 This is a schematic diagram of the three-dimensional second viewing angle structure of the present invention;

[0062] Figure 3 It is a structural schematic diagram of the fixing sleeve of the present invention;

[0063] Figure 4 It is a schematic diagram of the overall partial cutaway structure of the present invention;

[0064] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A;

[0065] Figure 6 This is a schematic diagram of the internal structure of the synthesis tank of the present invention;

[0066] Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure at B;

[0067] Figure 8 It is a schematic diagram of the partial cross-section structure of the sealing cylinder of the present invention;

[0068] Fig. 9 For the present invention Figure 8 Enlarged structural diagram at C.

[0069] The markings in the figure are:

[0070] 1. Synthesis tank; 2. Fixed frame; 3. Drive motor; 4. Connecting sleeve; 5. Stirring rod; 6. Fixed sleeve; 71. Lifting rod; 72. Guide strip; 73. Winding roller; 74. Copper wire roll; 75. Conductive sheet; 76. Fixed block; 77. Strong magnetic sheet; 78. Electrode sheet; 79. Conductive rod; 710. Electric contact sheet; 81. Guide frame; 82. Guide plate; 83. Guide port; 84. Rotating shaft; 85. Transmission gear; 86. Fixed teeth; 87. Sealing plate; 88. Stirring plate; 9. Catalyst tank; 101. Eccentric wheel; 102. Connecting frame; 103. Sliding rod; 104. Sliding frame; 105. Bracket; 106. Sealing cylinder; 107. Piston plate; 108. Liquid inlet pipe; 109. Liquid outlet pipe; 11. Material port; 12. Sealing baffle. DETAILED DESCRIPTION

[0071] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0072] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0073] like Figures 1 to 9 As shown, an ethyl hydroxyethyl cellulose synthesis catalytic device comprises a synthesis tank 1, the outer wall of the synthesis tank 1 is provided with a material port 11, and the inner wall of the material port 11 is provided with a sealing baffle 12; a fixing frame 2, fixedly mounted on the top surface of the synthesis tank 1; a driving motor 3, fixedly mounted on the inner wall of the fixing frame 2; a connecting sleeve 4, fixedly mounted on the output end of the driving motor 3; a stirring rod 5, rotatably mounted on the inner bottom wall of the synthesis tank 1, and the top end of the stirring rod 5 passes through the synthesis tank 1 and is slidably connected with the slider through the inner wall of the connecting sleeve 4 through a slide groove; a fixing sleeve 6, fixedly mounted on the bottom surface of the synthesis tank 1; a catalyst tank 9, fixedly mounted on the outer wall of the top end of the synthesis tank 1; a lifting assembly, arranged on the inner side of the fixing sleeve 6, for lifting and lowering the stirring rod 5; a stirring assembly, arranged on the inner wall of the synthesis tank 1, for stirring the catalytic reaction; a feeding assembly, arranged on the top end of the synthesis tank 1, for adding a catalyst;

[0074] For the catalytic reaction of ethyl hydroxyethyl cellulose synthesis, the esterification agent solution is first added into the synthesis tank 1 through the feed port 11, and then the catalyst can be added into the catalyst tank 9, and the driving motor 3 is turned on to drive the stirring rod 5 to rotate through the connecting sleeve 4. When the stirring rod 5 rotates, the material in the synthesis tank 1 can be stirred by the cooperation of the lifting component and the stirring component, and during the stirring process, the catalyst in the catalyst tank 9 can be gradually added into the synthesis tank 1 through the feeding component for catalytic reaction. After the catalytic reaction is completed, cellulose is added into the synthesis tank 1 again through the feed port 11, and stirring can be continued to react and synthesize ethyl hydroxyethyl cellulose.

[0075] like Figure 2 , Figure 3As shown, the lifting assembly includes: a lifting rod 71, which is arranged to penetrate the bottom surface of the synthesis tank 1, and the top of the lifting rod 71 is rotatably connected to the bottom end of the stirring rod 5; two guide bars 72, which are symmetrically fixedly installed on the outer wall of the lifting rod 71, and the bottom surface of the synthesis tank 1 is symmetrically provided with guide grooves corresponding to the guide bars 72; two winding rollers 73, which are symmetrically fixedly installed on the bottom end of the lifting rod 71; two groups of copper wire rolls 74, which are arranged on the inner sides of the two winding rollers 73, and the two groups of copper wire rolls 74 are electrically connected; two conductive sheets 75, which are respectively fixedly installed on the bottom outer walls of the two winding rollers 73, The two conductive sheets 75 are electrically connected to the two groups of copper wire coils 74 respectively; the two fixed blocks 76 are symmetrically fixedly installed on the inner side wall of the fixed sleeve 6, and the lifting rod 71, the guide strip 72, the winding roller 73, the fixed block 76 and the fixed sleeve 6 are all made of insulating materials; the two groups of strong magnetic sheets 77 are symmetrically arranged on the opposite sides of the two fixed blocks 76, and the relative magnetic poles of the group of strong magnetic sheets 77 located at the bottom of the two groups of strong magnetic sheets 77 are the same, and the relative magnetic poles of the group of strong magnetic sheets 77 located at the top of the two groups of strong magnetic sheets 77 are opposite; the trigger mechanism is arranged at the bottom end of the fixed sleeve 6;

[0076] When the driving motor 3 is turned on, it can be powered on through a trigger mechanism, so that current flows between the two groups of copper wire rolls 74. The current on the two groups of copper wire rolls 74 can form magnetic lines of force, and with the use of two groups of strong magnetic sheets 77, the copper wire rolls 74 can be ejected after being energized, so that the lifting rod 71 slides vertically upward through the guide bar 72 and the guide groove, and after sliding a certain distance, it can slide downward under the action of gravity to reset, thereby driving the stirring rod 5 to slide back and forth vertically, and the top end of the stirring rod 5 can slide in the connecting sleeve 4, and when the connecting sleeve 4 rotates, it can drive the stirring rod 5 to rotate, so that the stirring rod 5 can rotate and slide back and forth in the vertical direction at the same time.

[0077] like Figure 2 , Figure 3 As shown, the trigger mechanism includes: two electrode sheets 78, which are fixedly mounted on the bottom surfaces of the two fixed blocks 76, and the side surfaces of the conductive sheet 75 and the side surfaces of the electrode sheets 78 are in contact with each other; a conductive rod 79, which is fixedly mounted on the bottom end of the lifting rod 71, and a power line is installed on the conductive rod 79 and one of the two electrode sheets 78; an electric contact sheet 710, which is fixedly mounted on the bottom end of the fixed sleeve 6 through a mounting frame, and the electric contact sheet 710 is electrically connected to the other electrode sheet 78 of the two electrode sheets 78 through a wire;

[0078] When the electrode sheet 78 is connected to the power line on the conductive rod 79, the current can flow through the conductive rod 79 to the electric contact sheet 710 and then flow to the electrode sheet 78 through the wire. In the initial state, the electrode sheet 78 is in contact with the conductive sheet 75, so it can conduct electricity, so that the current flows through the two sets of copper wire rolls 74 and then flows out through another conductive sheet 75 and the electrode sheet 78, forming a closed loop, so that the lifting rod 71 can be popped out, and after the conductive rod 79 is separated from the electric contact sheet 710, the current disappears, and when the lifting rod 71 moves downward, the conductive rod 79 can contact the electric contact sheet 710 again, and the current flows so that the lifting rod 71 is popped out again. Through the above steps, the lifting rod 71 can slide back and forth in the vertical direction when powered on.

[0079] like Figures 4 to 7 As shown, the stirring assembly includes: a guide frame 81, fixedly mounted on the inner top wall of the synthesis tank 1; two guide plates 82, symmetrically slidably mounted on the inner side wall of the guide frame 81, and the guide plates 82 are provided with an inner cavity; a plurality of guide openings 83, which are arranged in a linear array and are opened on the opposite sides of the two guide plates 82; a plurality of rotating shafts 84, which are symmetrically arranged in a linear array and are rotatably mounted on the outer wall of the stirring rod 5, and the end of the rotating shaft 84 away from the stirring rod 5 passes through the guide opening 83 and is located in the inner cavity, and the diameter of the rotating shaft 84 is the same as the width of the guide opening 83; a plurality of transmission gears 85, which are respectively fixed The plurality of rotating shafts 84 are fixedly mounted at one end of the inner side of the inner cavity; a plurality of groups of fixed teeth 86 are respectively fixedly mounted on the inner side walls of the two inner cavities at positions corresponding to the guide opening 83, each group of fixed teeth 86 is distributed in a linear array, and the fixed teeth 86 are meshed with the transmission gear 85; a plurality of sealing plates 87 are fixedly sleeved on the outer walls of the plurality of rotating shafts 84, and the side surfaces of the sealing plates 87 and the side surfaces of the guide plates 82 are fitted to each other, and the width of the sealing plates 87 is at least greater than the width of the guide opening 83; a plurality of stirring plates 88 are distributed in an annular array and fixedly mounted on the outer walls of the plurality of rotating shafts 84;

[0080] Driven by the driving motor 3, the stirring rod 5 can rotate, and the guide plate 82 can be driven to rotate along the guide frame 81 through the rotating shaft 84, and the lifting rod 71 can drive the stirring rod 5 to slide synchronously when sliding back and forth in the vertical direction, and can drive the rotating shaft 84 to slide upward when the stirring rod 5 slides upward. When the rotating shaft 84 moves, the transmission gear 85 at its end can rotate under the action of the fixed teeth 86, so that the rotating shaft 84 and the stirring plate 88 can rotate, and the rotating shaft 84 can revolve along the stirring rod 5 while the stirring plate 88 rotates, and cooperate with the vertical sliding, so that the materials in the synthesis tank 1 can be fully and quickly stirred and synthesized for reaction, and when the rotating shaft 84 slides along the guide port 83, the sealing plate 87 can block the guide port 83 to prevent the raw materials from entering the inner cavity of the guide plate 82.

[0081] like Figure 8 , Fig. 9 As shown, the feeding assembly includes: an eccentric wheel 101, which is fixedly sleeved on the outer wall of the connecting sleeve 4; a connecting frame 102, which is fixedly installed on the top surface of the synthesis tank 1; a sliding rod 103, which is slidably installed on the inner wall of the connecting frame 102; a sliding frame 104, which is fixedly installed at one end of the sliding rod 103, and the sliding frame 104 is located on the outer wall of the eccentric wheel 101, and the outer wall of the eccentric wheel 101 is in contact with the inner wall of the sliding frame 104; a bracket 105, which is fixedly installed on the top surface of the synthesis tank 1; a sealing cylinder 106, which is fixedly installed on the top of the bracket 105; The plug plate 107 is slidably mounted on the inner wall of the sealing cylinder 106, and the end of the sliding rod 103 away from the sliding frame 104 is fixedly connected to the side of the piston plate 107; the liquid inlet pipe 108 is arranged on the top surface of the catalyst tank 9, and the two ends of the liquid inlet pipe 108 are respectively connected to the catalyst tank 9 and the end of the sealing cylinder 106; the liquid outlet pipe 109 is arranged on the top surface of the synthesis tank 1, and the two ends of the liquid outlet pipe 109 are respectively connected to the synthesis tank 1 and the end of the sealing cylinder 106, and the inner sides of the liquid inlet pipe 108 and the liquid outlet pipe 109 are installed with one-way valves with opposite flow directions;

[0082] When the driving motor 3 drives the connecting sleeve 4 to rotate, the eccentric wheel 101 can be driven to rotate synchronously, the sliding rod 103 slides in the connecting frame 102, and the eccentric wheel 101 is located in the sliding frame 104. Therefore, when the eccentric wheel 101 rotates, the sliding frame 104 and the sliding rod 103 can be driven to slide back and forth along the connecting frame 102, so that the piston plate 107 can slide back and forth in the sealing cylinder 106. Under the action of the one-way valves in the opposite flow directions in the liquid inlet pipe 108 and the liquid outlet pipe 109, the catalyst in the catalyst tank 9 is The catalyst can flow into the sealing cylinder 106 through the liquid inlet pipe 108, and the catalyst in the sealing cylinder 106 can flow into the synthesis tank 1 along the liquid outlet pipe 109. Therefore, when the piston plate 107 slides toward the connecting sleeve 4, a negative pressure can be formed inside the sealing cylinder 106, so that the catalyst in the catalyst tank 9 flows into the sealing cylinder 106 along the liquid inlet pipe 108, and when the piston plate 107 slides in the opposite direction, the catalyst in the sealing cylinder 106 can be added to the synthesis tank 1 through the liquid outlet pipe 109 to be mixed and stirred with the raw materials.

[0083] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0084] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An ethyl hydroxyethyl cellulose synthesis catalyst device, characterized in that: include: Synthesis tank (1); A fixed frame (2) fixedly mounted on the top surface of the synthesis tank (1); A driving motor (3) is fixedly mounted on the inner side wall of the fixing frame (2); A connecting sleeve (4) is fixedly mounted on the output end of the driving motor (3); A stirring rod (5) is rotatably mounted on the inner bottom wall of the synthesis tank (1), and the top end of the stirring rod (5) passes through the synthesis tank (1) and the inner wall of the connecting sleeve (4) and is slidably connected to the slider through a sliding groove; A fixed sleeve (6) fixedly mounted on the bottom surface of the synthesis tank (1); A catalyst tank (9) is fixedly mounted on the top outer wall of the synthesis tank (1); A lifting assembly, arranged on the inner side of the fixed sleeve (6) and used for lifting and lowering the stirring rod (5); A stirring assembly, arranged on the inner wall of the synthesis tank (1), for stirring the catalytic reaction; A feeding assembly is arranged at the top of the synthesis tank (1) and is used for adding catalyst.

2. The ethyl hydroxyethyl cellulose synthesis catalytic device according to claim 1, characterized in that: The lifting assembly comprises: A lifting rod (71) is arranged to penetrate the bottom surface of the synthesis tank (1), and the top end of the lifting rod (71) is rotatably connected to the bottom end of the stirring rod (5); Two guide bars (72) are symmetrically fixedly mounted on the outer wall of the lifting rod (71), and the bottom surface of the synthesis tank (1) is symmetrically provided with guide grooves corresponding to the guide bars (72); Two winding rollers (73) are symmetrically fixedly mounted on the bottom end of the lifting rod (71); Two groups of copper wire rolls (74) are arranged on the inner sides of the two winding rollers (73), and the two groups of copper wire rolls (74) are electrically connected; Two conductive sheets (75) are respectively fixedly mounted on the bottom outer walls of the two winding rollers (73), and the two conductive sheets (75) are respectively electrically connected to the two groups of copper wire rolls (74); Two fixing blocks (76) are symmetrically fixedly mounted on the inner side wall of the fixing sleeve (6); Two groups of strong magnetic sheets (77) are symmetrically arranged on opposite sides of the two fixing blocks (76); A trigger mechanism is arranged at the bottom end of the fixed sleeve (6).

3. The ethyl hydroxyethyl cellulose synthesis catalytic device according to claim 2, characterized in that: The trigger mechanism comprises: Two electrode sheets (78) are respectively fixedly mounted on the bottom surfaces of the two fixing blocks (76); A conductive rod (79) is fixedly mounted on the bottom end of the lifting rod (71), and a power line is mounted on the conductive rod (79) and one of the two electrode sheets (78); The electric contact piece (710) is fixedly mounted on the bottom end of the fixed sleeve (6) via a mounting frame, and the electric contact piece (710) is electrically connected to the other electrode piece (78) of the two electrode pieces (78) via a wire.

4. The ethyl hydroxyethyl cellulose synthesis catalytic device according to claim 3, characterized in that: The relative magnetic poles of the lower group of the two groups of strong magnetic sheets (77) are the same, and the relative magnetic poles of the upper group of the two groups of strong magnetic sheets (77) are opposite.

5. The ethyl hydroxyethyl cellulose synthesis catalytic device according to claim 4, characterized in that: The stirring assembly comprises: A guide frame (81) fixedly mounted on the inner top wall of the synthesis tank (1); Two guide plates (82) are symmetrically slidably mounted on the inner side wall of the guide frame (81), and an inner cavity is provided inside the guide plates (82); A plurality of guide openings (83) are arranged in a linear array and are disposed on opposite sides of the two guide plates (82); A plurality of rotating shafts (84) are symmetrically distributed in a linear array and rotatably mounted on the outer wall of the stirring rod (5), and one end of the rotating shaft (84) away from the stirring rod (5) passes through the guide opening (83) and is located in the inner cavity; A plurality of transmission gears (85) are respectively fixedly mounted on one end of a plurality of the rotating shafts (84) located inside the inner cavity; A plurality of groups of fixed teeth (86) are respectively fixedly mounted on the inner side walls at positions corresponding to the two inner cavities and the guide openings (83), each group of the fixed teeth (86) is distributed in a linear array, and the fixed teeth (86) are meshed with the transmission gear (85); A plurality of sealing plates (87) are fixedly sleeved on the outer walls of the plurality of rotating shafts (84), and the side surfaces of the sealing plates (87) and the side surfaces of the guide plates (82) are in contact with each other; A plurality of stirring plates (88) are distributed in a ring array and fixedly mounted on the outer walls of a plurality of the rotating shafts (84).

6. The ethyl hydroxyethyl cellulose synthesis catalytic device according to claim 5, characterized in that: The diameter of the rotating shaft (84) is the same as the width of the guide opening (83), and the width of the sealing plate (87) is at least greater than the width of the guide opening (83).

7. The ethyl hydroxyethyl cellulose synthesis catalytic device according to claim 6, characterized in that: The feeding assembly comprises: An eccentric wheel (101) is fixedly sleeved on the outer wall of the connecting sleeve (4); A connecting frame (102) is fixedly mounted on the top surface of the synthesis tank (1); A sliding rod (103) slidably mounted on the inner side wall of the connecting frame (102); A sliding frame (104) is fixedly mounted on one end of the sliding rod (103), and the sliding frame (104) is located on the outer wall of the eccentric wheel (101); A bracket (105) is fixedly mounted on the top surface of the synthesis tank (1); A sealing cylinder (106) is fixedly mounted on the top of the bracket (105); A piston plate (107) is slidably mounted on the inner wall of the sealing cylinder (106), and one end of the sliding rod (103) away from the sliding frame (104) is fixedly connected to the side surface of the piston plate (107); A liquid inlet pipe (108) is arranged on the top surface of the catalyst tank (9), and two ends of the liquid inlet pipe (108) are respectively connected to the ends of the catalyst tank (9) and the sealing cylinder (106); A liquid outlet pipe (109) is arranged on the top surface of the synthesis tank (1), and two ends of the liquid outlet pipe (109) are respectively connected to the ends of the synthesis tank (1) and the sealing cylinder (106).

8. The ethyl hydroxyethyl cellulose synthesis catalytic device according to claim 7, characterized in that: One-way valves with opposite flow directions are installed on the inner sides of the liquid inlet pipe (108) and the liquid outlet pipe (109), and the outer wall of the eccentric wheel (101) is in contact with the inner wall of the sliding frame (104).

9. The ethyl hydroxyethyl cellulose synthesis catalytic device according to claim 8, characterized in that: The side surface of the conductive sheet (75) and the side surface of the electrode sheet (78) are in contact with each other, and the lifting rod (71), the guide bar (72), the winding roller (73), the fixing block (76) and the fixing sleeve (6) are all made of insulating materials.

10. An ethyl hydroxyethyl cellulose synthesis catalytic device according to claim 9, characterized in that: The outer wall of the synthesis tank (1) is provided with a material opening (11), and the inner wall of the material opening (11) is provided with a sealing baffle (12).

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