Neutralization washing device for production of hydrophobic association hydroxyethyl cellulose

Abstract

The invention relates to the technical field of hydrophobic association hydroxyethyl cellulose production, in particular to a neutralizing and washing device for hydrophobic association hydroxyethyl cellulose production, which comprises a support seat; the connecting frame is fixedly mounted on the inner side wall of the supporting seat; the reaction barrel is fixedly mounted on the inner side wall of the connecting frame, and openings are formed in the two ends of the reaction barrel; and the servo motor is fixedly mounted on the top surface of the supporting seat. Compared with the prior art, by arranging the connecting sleeve and the stirring assembly, the servo motor drives the driving barrel to rotate forwards and backwards in order, materials in the reaction barrel are fully mixed through the connecting sleeve and the stirring assembly, the uniformity of the neutralizing and washing process is ensured, reciprocating sliding in the vertical direction is achieved while forward and backward rotation of the driving barrel is achieved, and the washing effect is improved. The stirring effect is enhanced, material precipitation and stirring dead angles are avoided, neutralization and washing can be carried out in the same container, and the production efficiency of the hydrophobic association hydroxyethyl cellulose is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of hydrophobically associated hydroxyethyl cellulose production, in particular to a neutralizing and washing device for the production of hydrophobically associated hydroxyethyl cellulose. Background Art

[0002] The production of hydrophobically associated hydroxyethyl cellulose is a process involving chemical reactions and process control. The product after expansion treatment and hydrophobic modification reaction needs to be neutralized and washed to obtain hydrophobically associated hydroxyethyl cellulose. In the neutralization step of the production of hydrophobically associated hydroxyethyl cellulose, the washing operation process is a key step, which aims to remove salts and other impurities that may be produced during the neutralization process to ensure the purity and stability of the product.

[0003] After searching, the Chinese patent with the publication number CN1283665C discloses a method for preparing hydrophobically associated hydroxyethyl cellulose, which is characterized in that 3-15 parts by weight of hydroxyethyl cellulose and 15-50 parts by weight of organic solvent are added into a three-necked bottle with a stirrer and a thermometer, 20-100 parts of an activator aqueous solution with a concentration of 3-10% are added under stirring, nitrogen is introduced, and the hydroxyethyl cellulose is swollen for 24 hours: the temperature is raised to 50-80°C, 0.1-5 parts by weight of aldahedrine is slowly added, and the reaction is carried out for 2-12 hours. The product is filtered, washed and soaked with an organic solvent to remove the residual reactants: neutralized with acid to pH=7-8, filtered; dried in a vacuum oven at a temperature of 30-50°C for 3-5 hours to obtain a hydrophobically associated hydroxyethyl cellulose product. The product can reach an apparent viscosity value of 450mPa S at about 0.45g / dl, showing a lower critical association concentration and higher viscosity. It has a stable molecular structure, good thermal stability, good biocompatibility, is non-toxic and harmless, and is expected to be used in the fields of oil displacement agents and flocculants in high-salinity reservoirs. However, the above scheme still has the following shortcomings in actual use:

[0004] In the preparation process of hydrophobically associated hydroxyethyl cellulose, the raw materials usually need to be transferred one by one to different reaction vessels for processing when undergoing key steps such as neutralization, washing and filtration. This series of transfer processes not only increases the cumbersomeness of the operation, but may also lead to the loss of raw materials, increased pollution risks and extended production cycles. First, the neutralization step is an important link in adjusting the pH value of the raw materials and activating the reactive groups, but each transfer may introduce new impurities or cause unstable reaction conditions, affecting the quality and performance of the final product. Secondly, the washing process aims to remove unreacted substances, by-products and impurities to ensure the purity of the product. However, frequent transfers not only increase resource consumption, but may also reduce the washing effect due to improper operation. Finally, filtration is a key step in separating the solid and liquid phases. Its efficiency is directly affected by problems such as blockage and filter cloth wear that may occur during the transfer process, further reducing the overall production efficiency.

[0005] Therefore, the present application provides a neutralization and washing device for the production of hydrophobically associated hydroxyethyl cellulose to meet the purpose of improving the production efficiency of hydrophobically associated hydroxyethyl cellulose. Summary of the invention

[0006] In view of this, the object of the present invention is to provide a neutralization and washing device for the production of hydrophobically associated hydroxyethyl cellulose to solve the problem of low production efficiency of hydrophobically associated hydroxyethyl cellulose.

[0007] Based on the above purpose, the present invention provides a neutralization and washing device for producing hydrophobically associated hydroxyethyl cellulose, comprising:

[0008] Support seat;

[0009] A connecting frame, fixedly mounted on the inner wall of the supporting base;

[0010] A reaction barrel, fixedly mounted on the inner wall of the connection frame, and having openings at both ends of the reaction barrel;

[0011] A servo motor is fixedly mounted on the top surface of the support base, and an output end of the servo motor passes through the top surface of the support base;

[0012] A connecting sleeve, fixedly mounted at the output end of the servo motor;

[0013] A driving cylinder is slidably mounted on the inner wall of the connecting sleeve through a sliding groove and a sliding block, and one end of the driving cylinder away from the connecting sleeve extends to the inner side of the reaction barrel;

[0014] A lifting seat, fixedly mounted on the inner bottom wall of the supporting seat;

[0015] A pressurizing assembly, disposed at the top of the driving cylinder, for pressurizing the filter;

[0016] A stirring assembly is arranged on the driving cylinder and is used for stirring the raw materials;

[0017] A scraping assembly, arranged at the bottom end of the driving cylinder, for flattening the raw material;

[0018] The filtering component is arranged at the telescopic end of the lifting seat and is used in conjunction with the pressurizing component to filter the reaction material.

[0019] Preferably, the pressurizing component comprises:

[0020] A connecting plate, fixedly sleeved on the outer wall of the driving cylinder, and the connecting plate is threadedly connected to the inner wall of the reaction barrel;

[0021] Two guide openings are symmetrically arranged on the outer wall of the driving cylinder;

[0022] An electric push rod, fixedly mounted on the inner top wall of the driving cylinder;

[0023] A sliding plate is slidably mounted on the inner side wall of the driving cylinder, and the telescopic end of the electric push rod is fixedly connected to the top surface of the sliding plate;

[0024] Two blocking plates are symmetrically hinged on the connecting plate, and the outer walls of the blocking plates are in contact with the inner walls of the reaction barrel;

[0025] Two transmission plates are symmetrically hinged on the bottom surface of the sliding plate, and one end of the transmission plate away from the sliding plate passes through the guide opening and is hinged to the side surface of the blocking plate;

[0026] The support rod is fixedly mounted on the bottom surface of the sliding plate.

[0027] Preferably, sealing strips are fixedly installed at the side edges of the two sealing plates that are away from each other, and the support rod is L-shaped.

[0028] Preferably, the stirring assembly comprises:

[0029] A transmission gear is rotatably mounted on the inner wall of the driving cylinder via a rotating shaft;

[0030] Two transmission racks are slidably mounted on the inner side walls of both sides of the driving cylinder, and the transmission racks are meshed with the transmission gear, and the top end of the upper one of the two transmission racks is fixedly connected to the bottom end of the support rod;

[0031] Two guide openings 2 are respectively provided at positions corresponding to the outer wall of the driving cylinder and the two transmission racks;

[0032] Two sealing sleeves are respectively slidably mounted on the outer wall of the driving cylinder and at positions corresponding to the two guide openings;

[0033] The two guide blocks are respectively slidably mounted on the inner side walls of the two guide openings 2, and the two ends of the guide blocks are respectively fixedly connected to the transmission rack and the sealing sleeve.

[0034] Preferably, the stirring assembly further comprises:

[0035] Four adjusting rods, two in a group, are symmetrically hinged on the outer walls of the two sealing sleeves;

[0036] Two scrapers are symmetrically arranged on the outside of the driving cylinder, and one end of two of the four adjusting rods located on the same side away from the sealing sleeve is hinged to the side of the scraper;

[0037] Two material guide grooves are arranged on the sides of the two scrapers.

[0038] Preferably, the scraping assembly comprises:

[0039] A rotating seat, rotatably mounted on the bottom end of the driving cylinder;

[0040] Two mounting frames are symmetrically mounted on the outer wall of the rotating seat;

[0041] A paving plate is fixedly mounted on the bottom surfaces of the two mounting frames respectively;

[0042] Four guide wheels are rotatably mounted on both ends of the two paving plates;

[0043] A connecting spring fixedly mounted between opposite sides of the two mounting frames;

[0044] A top plate is rotatably mounted on the inner bottom wall of the driving cylinder, and the rotating seat is fixedly connected to the top plate via a connecting rod;

[0045] A support rod fixedly mounted on the bottom end of one of the lower transmission racks of the two transmission racks;

[0046] The friction plate is fixedly mounted on one end of the support rod away from the transmission rack.

[0047] Preferably, a plurality of convex bumps are provided on the top surface of the top plate, and the diameter of the friction disk is the same as the inner diameter of the driving cylinder.

[0048] Preferably, the filter assembly comprises:

[0049] A filter barrel is fixedly mounted on the telescopic end of the lifting seat;

[0050] A sealing ring plate, fixedly mounted on the opening end of the filter barrel;

[0051] An annular sealing groove is provided at the bottom end of the reaction barrel, and the annular sealing groove is adapted to the sealing ring plate;

[0052] A connecting frame, fixedly mounted on the outer wall of the filter barrel;

[0053] A winding roller is rotatably mounted on one end of the connecting frame away from the filter barrel;

[0054] A filter cloth roll is arranged on the inner side of the winding roller, and the filter cloth roll is composed of filter cloth and baffle cloth, and the two are staggered;

[0055] A plurality of tearing notches are distributed in a linear array and are arranged at the connection position between the filter cloth and the retaining cloth.

[0056] Preferably, the width of the filter cloth roll is at least greater than the outer diameter of the filter barrel, and the lifting seat, the filter barrel and the reaction barrel are coaxially arranged.

[0057] Preferably, the end of the scraper away from the adjusting rod is arranged in an arc shape adapted to the reaction barrel, and the cross-sectional shape of the material guiding trough is a triangle.

[0058] Beneficial effects of the present invention:

[0059] 1. The neutralization and washing device for the production of hydrophobically associated hydroxyethyl cellulose is provided with a connecting sleeve and a stirring assembly. The servo motor drives the driving cylinder to rotate forward and reverse in an orderly manner. The connecting sleeve and the stirring assembly are used to fully mix the materials in the reaction barrel, thereby ensuring the uniformity of the neutralization and washing processes. The forward and reverse rotation of the driving cylinder simultaneously realizes reciprocating sliding in the vertical direction, thereby enhancing the stirring effect, avoiding material precipitation and stirring dead corners, and neutralization and washing can be performed in the same container, thereby effectively improving the efficiency of the production of hydrophobically associated hydroxyethyl cellulose.

[0060] 2. The neutralization and washing device for the production of hydrophobically associated hydroxyethyl cellulose has a pressurizing component and a filtering component. The electric push rod is extended to drive the sliding plate and the transmission plate, so that the sealing plate seals the top opening of the reaction barrel, and the pressurized filtration is performed by the servo motor drive, thereby improving the filtration efficiency and product quality. When the electric push rod is extended, the transmission rack and the transmission gear drive the sealing sleeve to move, and the fit between the scraper and the inner wall of the reaction barrel is adjusted to effectively scrape off the adhesion on the inner wall, further improving the filtration effect. At the same time, the lifting seat drives the filter barrel to cooperate with the reaction barrel, and the internal part is pressurized by the pressurizing component and filtered through the filter cloth. After the filtration is completed, the remaining product can be easily taken out, thereby realizing the effective recovery and reuse of the product.

[0061] 3. The neutralization and washing device for the production of hydrophobically associated hydroxyethyl cellulose is provided with a scraping component. When the electric push rod is shortened, the material at the bottom of the reaction barrel is stirred by the mounting frame and the paving plate, thereby ensuring uniform mixing of the bottom material. When the electric push rod is extended, along with the movement of the driving cylinder, the mounting frame and the paving plate can be unfolded to pave the bottom material, thereby providing a more uniform material layer for subsequent filtration and improving the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] 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.

[0063] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0064] Figure 2 It is a schematic diagram of the three-dimensional multi-angle structure of the present invention;

[0065] Figure 3 This is a schematic diagram of the structure of the reaction barrel of the present invention;

[0066] Figure 4 This is a schematic diagram of the internal structure of the reaction barrel of the present invention;

[0067] Figure 5 It is a schematic diagram of the internal partial cutaway structure of the reaction barrel of the present invention;

[0068] Figure 6 This is a schematic diagram of the internal structure of the driving cylinder of the present invention;

[0069] Figure 7 For the present invention Figure 5 The enlarged structural diagram at A in the middle;

[0070] Figure 8 For the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0071] Fig. 9 For the present invention Figure 5 Enlarged structural diagram at point C in the middle.

[0072] The markings in the figure are:

[0073] 1. Support seat; 2. Connecting frame; 3. Reaction barrel; 4. Servo motor; 5. Connecting sleeve; 6. Driving barrel; 71. Connecting plate; 72. Guide port 1; 73. Electric push rod; 74. Sliding plate; 75. Sealing plate; 76. Transmission plate; 77. Sealing strip; 78. Support rod; 81. Transmission gear; 82. Transmission rack; 83. Guide port 2; 84. Sealing sleeve; 85. Guide block; 86. Adjusting rod; 87. Scraper; 88. Guide trough; 91. Rotating seat; 92. Mounting frame; 93. Paving plate; 94. Guide wheel; 95. Connecting spring; 96. Top plate; 97. Support rod; 98. Friction disc; 10. Lifting seat; 111. Filter barrel; 112. Sealing ring plate; 113. Annular sealing groove; 114. Connecting frame; 115. Winding roller; 116. Filter cloth roll; 117. Tear notch. DETAILED DESCRIPTION

[0074] 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.

[0075] 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.

[0076] like Figures 1 to 9As shown, a neutralization and washing device for the production of hydrophobically associated hydroxyethyl cellulose comprises a support seat 1; a connecting frame 2, fixedly mounted on the inner side wall of the support seat 1; a reaction barrel 3, fixedly mounted on the inner side wall of the connecting frame 2, and both ends of the reaction barrel 3 are provided with openings; a servo motor 4, fixedly mounted on the top surface of the support seat 1, and the output end of the servo motor 4 passes through the top surface of the support seat 1; a connecting sleeve 5, fixedly mounted on the output end of the servo motor 4; a driving cylinder 6, slidably mounted on the inner side wall of the connecting sleeve 5 through a slide groove and a slider, and the end of the driving cylinder 6 away from the connecting sleeve 5 extends to the inner side of the reaction barrel 3; a lifting seat 10, fixedly mounted on the inner bottom wall of the support seat 1; a pressurizing component, arranged at the top end of the driving cylinder 6, for pressurizing the filtration; a stirring component, arranged on the driving cylinder 6, for stirring and processing the raw materials; a scraping component, arranged at the bottom end of the driving cylinder 6, for flattening the raw materials; a filtering component, arranged at the telescopic end of the lifting seat 10, used in conjunction with the pressurizing component, for filtering the reaction material;

[0077] In the initial state, the filtering component can seal the bottom opening of the reaction barrel 3 so that only the top opening of the reaction barrel 3 is left. At this time, the synthetic hydrophobically associated hydroxyethyl cellulose product can be added to the reaction barrel 3, and a neutralizing substance such as glacial acetic acid can be slowly added to the reaction barrel 3. Then, the servo motor 4 can be turned on for orderly forward and reverse rotation to drive the driving cylinder 6 to move through the connecting sleeve 5. The material in the reaction barrel 3 is fully mixed by the stirring component to achieve the neutralization of the hydrophobically associated hydroxyethyl cellulose product. After the neutralization is completed, the reaction barrel 3 can be left to stand for a period of time, and acetone can be slowly added to the reaction barrel 3 to wash the neutralized product. During the washing process, the servo motor 4 is turned on again to stir the material in the reaction barrel 3 so as to effectively remove impurities from the material. After the washing is completed, the hydrophobically associated hydroxyethyl cellulose product can be filtered by the cooperation of the pressurizing component and the filtering component for subsequent processing.

[0078] like Figure 3 , Figure 4 , Figure 5 , Figure 7As shown, the pressurizing assembly includes: a connecting plate 71, which is fixedly sleeved on the outer wall of the driving cylinder 6, and the connecting plate 71 is threadedly connected to the inner wall of the reaction barrel 3; two guide ports 72 are symmetrically opened on the outer wall of the driving cylinder 6; an electric push rod 73 is fixedly installed on the inner top wall of the driving cylinder 6; a sliding plate 74 is slidably installed on the inner wall of the driving cylinder 6, and the telescopic end of the electric push rod 73 is fixedly connected to the top surface of the sliding plate 74; two blocking plates 75 are symmetrically hinged on the connecting plate 71, and the outer wall of the blocking plate 75 is in contact with the inner wall of the reaction barrel 3, and sealing strips 77 are fixedly installed on the side edges of the two blocking plates 75 away from each other; two transmission plates 76 are symmetrically hinged on the bottom surface of the sliding plate 74, and one end of the transmission plate 76 away from the sliding plate 74 passes through the guide port 72 and is hinged to the side of the blocking plate 75; a support rod 78 is fixedly installed on the bottom surface of the sliding plate 74, and the support rod 78 is L-shaped;

[0079] When the hydrophobically associated hydroxyethyl cellulose product in the reaction barrel 3 is stirred during the neutralization and washing process, the driving cylinder 6 can synchronously drive the connecting plate 71 to rotate when rotating. The connecting plate 71 is screwed to the inner wall of the reaction barrel 3. Therefore, when the driving cylinder 6 rotates forward and reversely, the driving cylinder 6 can rotate along the connecting sleeve 5 while performing reciprocating sliding in the vertical direction, thereby realizing the driving of the stirring component and the reciprocating sliding in the vertical direction to ensure the stirring effect; and when the hydrophobically associated hydroxyethyl cellulose product in the reaction barrel 3 is filtered, the electric push rod 73 can be opened and extended to drive the sliding plate 74 to slide along the inner wall of the driving cylinder 6, and the two ends of the transmission plate 76 are respectively connected to the sliding plate 74 and the sealing The plate 75 is hinged, so when the sliding plate 74 moves downward, it can drive the transmission plate 76 to rotate, so that the transmission plate 76 drives the sealing plate 75 to rotate to a state horizontal with the connecting plate 71. At this time, the sealing plate 75, the connecting plate 71 and the sealing strip 77 can seal the opening at the top of the reaction barrel 3, and as the servo motor 4 drives the connecting plate 71 and the sealing plate 75 to move downward, the inner side of the reaction barrel 3 can be pressurized for filtering. After the pressurization is completed, the servo motor 4 can be reversed to make the connecting plate 71 and the sealing plate 75 move upward to restore the air pressure. After the connecting plate 71 is reset, the electric push rod 73 can be shortened to reset the sealing plate 75 for use again.

[0080] like Figure 4 , Figure 5 , Figure 8As shown, the stirring assembly includes: a transmission gear 81, which is rotatably mounted on the inner wall of the driving cylinder 6 through a rotating shaft; two transmission racks 82, which are slidably mounted on the inner walls of both sides of the driving cylinder 6, and the transmission racks 82 are meshed with the transmission gear 81, and the top of the upper transmission rack 82 in the two transmission racks 82 is fixedly connected to the bottom end of the support rod 78; two guide openings 83 are respectively opened at the outer wall of the driving cylinder 6 and the corresponding positions of the two transmission racks 82; two sealing sleeves 84 are respectively slidably mounted on the outer wall of the driving cylinder 6 and the corresponding positions of the two guide openings 83; two guide blocks 85 are respectively slidably mounted on the two guide blocks. The inner wall of the second opening 83, and the two ends of the guide block 85 are fixedly connected to the transmission rack 82 and the sealing sleeve 84 respectively; the stirring assembly also includes: four adjusting rods 86, two in a group, symmetrically hinged on the outer wall of the two sealing sleeves 84; two scrapers 87, symmetrically arranged on the outer side of the driving cylinder 6, and the ends of the two adjusting rods 86 located on the same side of the four adjusting rods 86 away from the sealing sleeve 84 are hinged to the side of the scraper 87, and the end of the scraper 87 away from the adjusting rod 86 is set to an arc shape adapted to the reaction barrel 3; two guide grooves 88 are opened on the sides of the two scrapers 87, and the cross-sectional shape of the guide groove 88 is a triangle;

[0081] When the driving cylinder 6 rotates for stirring, the adjusting rod 86 and the scraper 87 can be synchronously driven to rotate, so that the adjusting rod 86 and the scraper 87 can fully stir the hydrophobically associated hydroxyethyl cellulose product in the reaction barrel 3 for neutralization and washing. As the electric push rod 73 extends, the sliding plate 74 slides downward and can drive the upper transmission rack 82 to slide downward through the support rod 78. The two transmission racks 82 are meshed with the transmission gear 81, so that the two transmission racks 82 can slide in opposite directions and drive the guide block 85 to move the upper transmission rack 82 downward. The sealing sleeve 84 slides so that the two sealing sleeves 84 slide in opposite directions toward each other, thereby the two scrapers 87 move in opposite directions away from each other through the rotation of the adjusting rod 86, so that the side walls of the scrapers 87 can fit with the inner wall of the reaction barrel 3, and when the reaction barrel 3 is pressurized, the movement of the driving cylinder 6 can drive the scrapers 87 to move, and then the adhesions on the inner wall of the reaction barrel 3 are scraped off through the material guide groove 88 for filtering; and as the reaction is completed, the electric push rod 73 is shortened, and the scrapers 87 can be reset for stirring again.

[0082] like Figure 4 , Figure 5 , Fig. 9As shown, the scraping assembly includes: a rotating seat 91, which is rotatably mounted on the bottom end of the driving cylinder 6; two mounting frames 92, which are symmetrically rotatably mounted on the outer wall of the rotating seat 91; a paving plate 93, which is fixedly mounted on the bottom surfaces of the two mounting frames 92; four guide wheels 94, which are rotatably mounted on the two ends of the two paving plates 93; a connecting spring 95, which is fixedly mounted between the opposite sides of the two mounting frames 92; a top plate 96, which is rotatably mounted on the inner bottom wall of the driving cylinder 6, and the rotating seat 91 is fixedly connected to the top plate 96 through a connecting rod, and a plurality of convex hulls are provided on the top surface of the top plate 96; a support rod 97, which is fixedly mounted on the bottom end of a transmission rack 82 in the lower part of the two transmission racks 82; a friction plate 98, which is fixedly mounted on the end of the support rod 97 away from the transmission rack 82, and the diameter of the friction plate 98 is the same as the inner diameter of the driving cylinder 6;

[0083] When the reaction barrel 3 is being stirred during the neutralization and washing process, the electric push rod 73 is in a shortened state, and the friction disk 98 is in a fitted state with the top plate 96, thereby realizing the limit of the rotating seat 91. At this time, when the driving cylinder 6 moves, the hydrophobically associated hydroxyethyl cellulose product at the bottom of the reaction barrel 3 can be stirred through the mounting frame 92 and the paving plate 93. As the electric push rod 73 is extended, a transmission rack 82 at the bottom moves upward and can drive the friction disk 98 to move upward and separate from the top plate 96 through the support rod 97. At this time, the rotating seat 91 is released from the limit, and as the driving cylinder 6 moves downward, the guide wheel 94 can contact and be supported by the filter assembly. As the driving cylinder 6 continues to move downward, the mounting frame 92 and the paving plate 93 can be unfolded to pave the hydrophobically associated hydroxyethyl cellulose product at the bottom of the reaction barrel 3 for subsequent filtration.

[0084] like Figure 1 to Figure 2 As shown, the filter assembly includes: a filter barrel 111, which is fixedly mounted on the telescopic end of the lifting seat 10, and the lifting seat 10, the filter barrel 111 and the reaction barrel 3 are coaxially arranged; a sealing ring plate 112, which is fixedly mounted on the open end of the filter barrel 111; an annular sealing groove 113, which is opened at the bottom end of the reaction barrel 3, and the annular sealing groove 113 is adapted to the sealing ring plate 112; a connecting frame 114, which is fixedly mounted on the outer wall of the filter barrel 111; a winding roller 115, which is rotatably mounted on the end of the connecting frame 114 away from the filter barrel 111; a filter cloth roll 116, which is arranged on the inner side of the winding roller 115, the width of the filter cloth roll 116 is at least greater than the outer diameter of the filter barrel 111, and the filter cloth roll 116 is composed of a filter cloth and a retaining cloth, and the two are staggered; a plurality of tearing notches 117, which are distributed in a linear array and are opened at the connection position between the filter cloth and the retaining cloth;

[0085] When stirring during the neutralization and washing process, the blocking cloth in the filter cloth roll 116 is located at the bottom of the reaction barrel 3 to seal the bottom of the reaction barrel 3. After the neutralization and washing reactions are completed, the lifting seat 10 can be moved downward to separate the filter barrel 111 from the reaction barrel 3. At this time, the staff can pull the filter cloth roll 116 so that the filter cloth under the blocking cloth can be moved to the top surface of the filter barrel 111, and then tear off the blocking cloth through the tearing opening 117. The hydrophobically associated hydroxyethyl cellulose product is located on the torn blocking cloth. The staff opens the lifting seat 10 again to move the filter barrel 111 upward, and the sealing ring plate 112 can be inserted into the annular sealing groove 113 to clamp the filter cloth roll 116 for fixation. The staff then guides the hydrophobically associated hydroxyethyl cellulose product on the blocking cloth back into the reaction barrel 3, and the reaction barrel 3 and the filter barrel 111 can be pressurized by the pressurizing component and filtered through the filter cloth. After the filtration is completed, the remaining product can be taken out.

[0086] 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.

[0087] 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. A neutralization and washing device for producing hydrophobically associated hydroxyethyl cellulose, characterized in that: include: Support seat (1); A connecting frame (2) is fixedly mounted on the inner wall of the supporting base (1); A reaction barrel (3) is fixedly mounted on the inner wall of the connection frame (2), and both ends of the reaction barrel (3) are provided with openings; A servo motor (4) is fixedly mounted on the top surface of the support base (1), and an output end of the servo motor (4) passes through the top surface of the support base (1); A connecting sleeve (5) is fixedly mounted on the output end of the servo motor (4); A driving cylinder (6) is slidably mounted on the inner wall of the connecting sleeve (5) through a sliding groove and a sliding block, and one end of the driving cylinder (6) away from the connecting sleeve (5) extends to the inner side of the reaction barrel (3); A lifting seat (10) is fixedly mounted on the inner bottom wall of the supporting seat (1); A pressurizing component, arranged at the top end of the driving cylinder (6) and used for pressurizing the filtration; A stirring assembly, arranged on the driving cylinder (6), for stirring the raw materials; A scraping assembly, arranged at the bottom end of the driving cylinder (6), for flattening the raw material; A filtering component is arranged at the telescopic end of the lifting seat (10) and is used in conjunction with the pressurizing component to filter the reaction material.

2. A neutralization and washing device for producing hydrophobically associated hydroxyethyl cellulose according to claim 1, characterized in that: The pressurizing component comprises: A connecting plate (71) is fixedly sleeved on the outer wall of the driving cylinder (6), and the connecting plate (71) is threadedly connected to the inner wall of the reaction barrel (3); Two guide openings (72) are symmetrically arranged on the outer wall of the driving cylinder (6); An electric push rod (73) fixedly mounted on the inner top wall of the driving cylinder (6); A sliding plate (74) is slidably mounted on the inner side wall of the driving cylinder (6), and the telescopic end of the electric push rod (73) is fixedly connected to the top surface of the sliding plate (74); Two blocking plates (75) are symmetrically hinged on the connecting plate (71), and the outer wall of the blocking plate (75) is in contact with the inner wall of the reaction barrel (3); Two transmission plates (76) are symmetrically hinged on the bottom surface of the sliding plate (74), and one end of the transmission plate (76) away from the sliding plate (74) passes through the guide opening (72) and is hinged to the side surface of the blocking plate (75); The support rod (78) is fixedly mounted on the bottom surface of the sliding plate (74).

3. A neutralization and washing device for producing hydrophobically associated hydroxyethyl cellulose according to claim 2, characterized in that: A sealing strip (77) is fixedly installed at the side edges of the two blocking plates (75) that are away from each other, and the support rod (78) is L-shaped.

4. A neutralization and washing device for producing hydrophobically associated hydroxyethyl cellulose according to claim 3, characterized in that: The stirring assembly comprises: A transmission gear (81) is rotatably mounted on the inner wall of the driving cylinder (6) via a rotating shaft; Two transmission racks (82) are slidably mounted on the inner side walls of both sides of the driving cylinder (6), and the transmission racks (82) are meshed with the transmission gear (81), and the top end of the upper transmission rack (82) of the two transmission racks (82) is fixedly connected to the bottom end of the support rod (78); Two guide openings (83) are respectively provided at positions corresponding to the outer wall of the driving cylinder (6) and the two transmission racks (82); Two sealing sleeves (84) are respectively slidably mounted on the outer wall of the driving cylinder (6) and at positions corresponding to the two guide openings (83); Two guide blocks (85) are respectively slidably mounted on the inner side walls of the two guide openings (83), and two ends of the guide blocks (85) are respectively fixedly connected to the transmission rack (82) and the sealing sleeve (84).

5. A neutralization and washing device for producing hydrophobically associated hydroxyethyl cellulose according to claim 4, characterized in that: The stirring assembly also includes: Four adjustment rods (86), two in a group, symmetrically hinged on the outer walls of the two sealing sleeves (84); Two scrapers (87) are symmetrically arranged on the outside of the driving cylinder (6), and two of the four adjusting rods (86) located on the same side have their ends away from the sealing sleeve (84) hinged to the side of the scraper (87); Two material guide grooves (88) are provided on the sides of the two scrapers (87).

6. A neutralization and washing device for producing hydrophobically associated hydroxyethyl cellulose according to claim 5, characterized in that: The scraping assembly comprises: A rotating seat (91) is rotatably mounted on the bottom end of the driving cylinder (6); Two mounting frames (92) are symmetrically mounted on the outer wall of the rotating seat (91); A paving plate (93) is fixedly mounted on the bottom surfaces of the two mounting frames (92) respectively; Four guide wheels (94) are rotatably mounted on both ends of the two paving plates (93); A connecting spring (95) is fixedly mounted between opposite sides of the two mounting frames (92); A top plate (96) is rotatably mounted on the inner bottom wall of the driving cylinder (6), and the rotating seat (91) is fixedly connected to the top plate (96) via a connecting rod; A support rod (97) is fixedly mounted on the bottom end of a lower transmission rack (82) among the two transmission racks (82); A friction plate (98) is fixedly mounted on one end of the support rod (97) away from the transmission rack (82).

7. A neutralization and washing device for producing hydrophobically associated hydroxyethyl cellulose according to claim 6, characterized in that: The top surface of the top plate (96) is provided with a plurality of convex bumps, and the diameter of the friction disk (98) is the same as the inner diameter of the driving cylinder (6).

8. A neutralization and washing device for producing hydrophobically associated hydroxyethyl cellulose according to claim 7, characterized in that: The filter assembly comprises: A filter barrel (111) is fixedly mounted on the telescopic end of the lifting seat (10); A sealing ring plate (112) is fixedly mounted on the opening end of the filter barrel (111); An annular sealing groove (113) is provided at the bottom end of the reaction barrel (3), and the annular sealing groove (113) is adapted to fit the sealing ring plate (112); A connecting frame (114) is fixedly mounted on the outer wall of the filter barrel (111); A winding roller (115) is rotatably mounted on an end of the connecting frame (114) away from the filter barrel (111); A filter cloth roll (116) is arranged on the inner side of the winding roller (115), wherein the filter cloth roll (116) is composed of a filter cloth and a retaining cloth, and the two are arranged in a staggered manner; A plurality of tearing notches (117) are distributed in a linear array and are arranged at the connection position between the filter cloth and the retaining cloth.

9. A neutralization and washing device for producing hydrophobically associated hydroxyethyl cellulose according to claim 8, characterized in that: The width of the filter cloth roll (116) is at least greater than the outer diameter of the filter barrel (111), and the lifting seat (10), the filter barrel (111) and the reaction barrel (3) are coaxially arranged.

10. A neutralization and washing device for producing hydrophobically associated hydroxyethyl cellulose according to claim 9, characterized in that: The end of the scraper (87) away from the adjusting rod (86) is arranged in an arc shape adapted to the reaction barrel (3), and the cross-sectional shape of the material guide groove (88) is a triangle.

Images