Esterification and dehydration device for producing dry strength agent

Abstract

The utility model provides an esterification dehydration device for producing a dry strength agent. The esterification dehydration device comprises a reaction tank, a driving assembly arranged on the surface of the reaction tank, a stirring assembly arranged in the reaction tank, a catalyst storage assembly arranged in the reaction tank, and a catalyst spraying assembly arranged in the catalyst storage assembly. According to the esterification and dehydration device for producing the dry strength agent, the interior of the reaction tank is heated through the heating plate, the reaction speed is increased, meanwhile, the driving assembly starts the stirring assembly to rotate, the bottom of the stirring assembly makes contact with the bottom of the interior of the reaction tank, bottom precipitation is prevented, and meanwhile the stirring assembly can vertically rotate in the reaction tank; and the catalyst storage assembly and the catalyst spraying assembly are arranged at the top of the interior of the reaction tank, and the driving assembly can drive the catalyst spraying assembly to move up and down to uniformly scatter the catalyst in the catalyst storage assembly into the reaction tank, so that the reaction is more sufficient.

Description

Technical Field

[0001] The utility model relates to the technical field of dry strength agent production, in particular to an esterification dehydration device for dry strength agent production. Background Art

[0002] Dry strength agents are an important class of chemicals used in the papermaking industry to increase the strength of paper. Many water-soluble polymers that can form hydrogen bonds with fibers can become dry strength agents. Dry strength agents are usually used to compensate for the decrease in paper strength caused by adding fillers or low-grade fibers (such as recycled fibers).

[0003] Esterification reaction is a type of organic chemical reaction, which is mainly the reaction of alcohol with carboxylic acid or inorganic oxygen-containing acid to generate ester and water. When the dry strength agent is esterified and dehydrated, it needs to be stirred and a catalyst needs to be added to accelerate the reaction rate. However, the existing dehydration device has a simple structure and only uses a simple stirring shaft for stirring. The stirring is uneven, which causes the catalyst and the dry strength agent to react slowly, the reaction is not sufficient, and the production efficiency is affected.

[0004] Therefore, it is necessary to provide an esterification dehydration device for producing a dry strength agent to solve the above technical problems. Utility Model Content

[0005] The utility model provides an esterification dehydration device for dry strength agent production, which solves the problems of slow stirring speed and uneven stirring of the existing dehydration device, resulting in slow reaction speed, inadequate reaction and affecting production efficiency.

[0006] In order to solve the above technical problems, the utility model provides an esterification dehydration device for dry strength agent production, comprising: a reaction tank, a heating plate is fixedly installed on the inner surface of the reaction tank, and a drainage pipe is fixedly connected to the bottom of the reaction tank;

[0007] A drive assembly, the drive assembly is arranged on the surface of the reaction tank, the drive assembly comprises a drive motor, the drive motor is fixedly mounted on the outer surface of the top of the reaction tank, a rotating threaded rod is fixedly connected to the bottom of the drive motor, and a stirring shaft is fixedly connected to the bottom of the rotating threaded rod;

[0008] A stirring assembly, the stirring assembly is arranged inside the reaction tank, the stirring assembly comprises a connecting rod, the connecting rod is fixedly connected to the outer surface of the stirring shaft, the other end of the connecting rod is movably connected to a stirring paddle, the bottom of the stirring shaft is movably connected to a telescopic rod, the top of the telescopic rod is fixedly connected to a spring, and the spring is movably installed inside the stirring shaft;

[0009] A catalyst storage assembly, the catalyst storage assembly is arranged inside the reaction tank, the catalyst storage assembly includes a storage box, the storage box is fixedly installed on the top of the reaction tank, the outer surface of the storage box is fixedly connected to a feeding pipe, and the other end of the feeding pipe is fixedly connected to the outer surface of the top of the reaction tank;

[0010] A catalyst spraying assembly is arranged inside the catalyst storage assembly, and the catalyst spraying assembly includes a sliding plate, which is threadedly connected to the outer surface of the rotating threaded rod, a piston is fixedly connected to the bottom of the sliding plate, a nozzle is fixedly connected to the bottom of the storage box, and the piston is movably embedded in the nozzle.

[0011] Preferably, a sampling assembly is provided at the bottom of the reaction tank, and the sampling assembly includes a sampling groove, which is opened at the bottom of the reaction tank, and an adjusting threaded rod is movably installed inside the reaction tank at the left end of the sampling groove, and the outer surface of the top of the adjusting threaded rod is threadedly connected to an upper sealing plate, and the outer surface of the bottom of the adjusting threaded rod is threadedly connected to a lower sealing plate.

[0012] Compared with the related art, the esterification dehydration device for dry strength agent production provided by the utility model has the following beneficial effects:

[0013] The utility model provides an esterification dehydration device for the production of dry strength agent. The heating plate heats the inside of a reaction tank to accelerate the reaction speed, and a driving component starts the rotation of a stirring component. The bottom of the stirring component contacts the bottom of the inside of the reaction tank to prevent bottom sedimentation, and can rotate vertically inside the reaction tank to make the stirring more uniform. A catalyst storage component and a catalyst spraying component are arranged on the top of the inside of the reaction tank. The driving component can drive the catalyst spraying component to move up and down to evenly sprinkle the catalyst inside the catalyst storage component into the inside of the reaction tank, thereby accelerating the reaction speed and making the reaction more sufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a first embodiment of an esterification dehydration device for producing a dry strength agent provided by the utility model;

[0015] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;

[0016] Figure 3 A schematic structural diagram of a second embodiment of an esterification dehydration device for producing a dry strength agent provided by the utility model;

[0017] Figure 4 for Figure 1The schematic diagram of the state structure of the sampling trough when the discharge port is open is shown.

[0018] Numbers in the figure: 1, reaction tank, 2, heating plate, 3, drainage pipe,

[0019] 4. driving assembly, 41. driving motor, 42. rotating threaded rod, 43. stirring shaft,

[0020] 5. Stirring assembly, 51. Connecting rod, 52. Stirring paddle, 53. Telescopic rod, 54. Spring,

[0021] 6. Catalyst storage assembly, 61. Storage box, 62. Feeding pipe,

[0022] 7. Catalyst spraying assembly, 71. Sliding plate, 72. Piston, 73. Spray head,

[0023] 8. Sampling assembly, 81. Sampling slot, 82. Adjusting threaded rod, 83. Upper sealing plate, 84. Lower sealing plate. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0025] First embodiment

[0026] Please refer to Figure 1 and Figure 2 ,in, Figure 1 This is a schematic structural diagram of a first embodiment of an esterification dehydration device for producing a dry strength agent provided by the utility model; Figure 2 for Figure 1 The enlarged schematic diagram of part A is shown. An esterification dehydration device for producing a dry strength agent comprises: a reaction tank 1, a heating plate 2 is fixedly installed on the inner surface of the reaction tank 1, and a drainage pipe 3 is fixedly connected to the bottom of the reaction tank 1;

[0027] A driving assembly 4, wherein the driving assembly 4 is arranged on the surface of the reaction tank 1, and the driving assembly 4 comprises a driving motor 41, wherein the driving motor 41 is fixedly mounted on the outer surface of the top of the reaction tank 1, a rotating threaded rod 42 is fixedly connected to the bottom of the driving motor 41, and a stirring shaft 43 is fixedly connected to the bottom of the rotating threaded rod 42;

[0028] A stirring assembly 5, the stirring assembly 5 is arranged inside the reaction tank 1, the stirring assembly 5 comprises a connecting rod 51, the connecting rod 51 is fixedly connected to the outer surface of the stirring shaft 43, the other end of the connecting rod 51 is movably connected to a stirring paddle 52, the bottom of the stirring shaft 43 is movably connected to a telescopic rod 53, the top of the telescopic rod 53 is fixedly connected to a spring 54, and the spring 54 is movably installed inside the stirring shaft 43;

[0029] A catalyst storage assembly 6, wherein the catalyst storage assembly 6 is disposed inside the reaction tank 1, and the catalyst storage assembly 6 comprises a storage box 61, wherein the storage box 61 is fixedly mounted on the top of the reaction tank 1, and a feeding pipe 62 is fixedly connected to the outer surface of the storage box 61, and the other end of the feeding pipe 62 is fixedly connected to the outer surface of the top of the reaction tank 1;

[0030] The catalyst spraying assembly 7 is arranged inside the catalyst storage assembly 6 .

[0031] The heating plate 2 can heat the dry strength agent inside the reaction tank 1, thereby accelerating the reaction between the dry strength agent and the catalyst. The drain pipe 3 can discharge the water after the reaction. The function of the driving component 4 is to drive the stirring component 5 to stir while driving the catalyst storage component 6 to move and spray the catalyst. The catalyst storage component 6 is used to store the catalyst. The function of the catalyst spraying component 7 is to quantitatively spray the catalyst inside the reaction tank 1, so that the catalyst and the dry strength agent are mixed more evenly and the reaction speed is increased. The rotating threaded rod 42 is fixedly connected to the rotating shaft at the bottom of the driving motor 41. The rotating threaded rod 42 is rotatably installed inside the top of the reaction tank 1. The stirring shaft 43 is fixedly connected to the bottom of the rotating threaded rod 42. Starting the driving motor 41 can drive the rotating threaded rod 42 and the stirring shaft 43 to rotate inside the reaction tank 1, thereby driving the stirring component 5 to rotate and stir. The catalyst spraying component 7 moves up and down to spray the catalyst. There are multiple connecting rods 51, each two in a group, symmetrically fixedly connected to the outer surface of the stirring shaft 43, the connecting rod 51 in the middle is shorter, and the other end of each connecting rod 51 is rotatably connected There are stirring paddles 52, each stirring paddle 52 is staggered, which increases the stirring space, and during the stirring process, the pressure of the dry strength agent pushes the stirring paddle 52 to rotate vertically, so that the dry strength agent can be stirred horizontally and vertically at the same time, making the stirring more uniform. A groove is opened inside the connecting rod 51, and the telescopic rod 53 is a T-shaped rod, one end of the top is movably embedded in the groove, and the spring 54 is fixedly installed in the groove, and the bottom is fixedly connected to the top of one end of the telescopic rod 53 embedded in the groove. The elastic force of the spring 54 makes the bottom of the telescopic rod 53 always connected At the bottom of the reaction tank 1, the dry strength agent at the bottom of the reaction tank 1 is stirred to prevent precipitation, uneven stirring and insufficient reaction. The storage box 61 is fixedly connected to the center of the inner surface of the top of the reaction tank 1, and the centers of the upper and lower end surfaces are opened. The rotating threaded rod 42 is movably embedded in the storage box 61 through the opening. One end of the feeding pipe 62 is fixedly connected to the outer surface of the left end of the storage box 61, and the other end is fixedly connected to the outer surface of the top of the reaction tank 1. The catalyst can be added to the interior of the storage box 61 through one end of the top.

[0032] The catalyst spraying assembly 7 includes a sliding plate 71, which is threadedly connected to the outer surface of the rotating threaded rod 42, a piston 72 is fixedly connected to the bottom of the sliding plate 71, a nozzle 73 is fixedly connected to the bottom of the storage box 61, and the piston 72 is movably embedded in the inside of the nozzle 73.

[0033] A threaded hole is provided at the center of the sliding plate 71, and the thread is sleeved on the outer surface of the rotating threaded rod 42 in the storage box 61. A plurality of pistons 72 are fixedly connected to the bottom of the sliding plate 71, and nozzles 73 are installed at the bottom of the storage box 61 just below the pistons 72. When the rotating threaded rod 42 rotates, the sliding plate 71 drives the pistons 72 to move up and down inside the nozzles 73, so that the catalyst inside the storage box 61 is sprayed out from the bottom of the nozzles 73 under pressure to the inside of the reaction tank 1 to be mixed with the dry strength agent.

[0034] The working principle of the esterification dehydration device for dry strength agent production provided by the utility model is as follows:

[0035] The driving motor 41 is started to drive the rotating threaded rod 42 and the stirring shaft 43 to rotate. During this process, the rotating threaded rod 42 drives the sliding plate 71 inside the storage box 61 to move up and down, and the piston 72 moves up and down inside the nozzle 73, so that the catalyst inside the storage box 61 is withdrawn from the bottom of the nozzle 73 to the inside of the reaction tank 1. The stirring shaft 43 drives the connecting rod 51 to rotate horizontally, and the pressure between the stirring paddle 52 and the dry strength agent drives the stirring paddle 52 to rotate, thereby vertically stirring the dry strength agent. The elastic force of the spring 54 drives the telescopic rod 53 to always contact the bottom of the inside of the reaction tank 1. At the same time, the stirring shaft 43 drives the telescopic rod 53 to rotate to stir the dry strength agent at the bottom of the reaction tank 1.

[0036] Compared with the related art, the esterification dehydration device for dry strength agent production provided by the utility model has the following beneficial effects:

[0037] The utility model provides an esterification dehydration device for the production of dry strength agent. The heating plate 2 heats the interior of a reaction tank 1 to accelerate the reaction speed. The driving component 4 starts the stirring component 5 to rotate. The bottom of the stirring component 5 contacts the bottom of the interior of the reaction tank 1 to prevent the bottom from settling. The stirring component 5 can rotate vertically in the interior of the reaction tank 1 to make the stirring more uniform. A catalyst storage component 6 and a catalyst spraying component 7 are arranged on the top of the interior of the reaction tank 1. The driving component 4 can drive the catalyst spraying component 7 to move up and down to evenly sprinkle the catalyst in the catalyst storage component 6 into the interior of the reaction tank 1, thereby accelerating the reaction speed and making the reaction more sufficient.

[0038] Second embodiment

[0039] Please refer to Figure 3 and Figure 4Based on the esterification dehydration device for producing dry strength agent provided in the first embodiment of the present application, the second embodiment of the present application proposes another esterification dehydration device for producing dry strength agent. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0040] Specifically, the difference of the esterification and dehydration device for producing a dry strength agent provided in the second embodiment of the present application is that, in the esterification and dehydration device for producing a dry strength agent, a sampling assembly 8 is provided at the bottom of the reaction tank 1, and the sampling assembly 8 includes a sampling groove 81, and the sampling groove 81 is opened at the bottom of the reaction tank 1, and an adjusting threaded rod 82 is movably installed inside the reaction tank 1 at the left end of the sampling groove 81, and the outer surface of the top of the adjusting threaded rod 82 is threadedly connected to an upper sealing plate 83, and the outer surface of the bottom of the adjusting threaded rod 82 is threadedly connected to a lower sealing plate 84.

[0041] A partition is fixedly installed at the bottom of the reaction tank 1, and a sampling slot 81 is opened inside the partition near the left end, and two slide grooves are connected to the sampling slot 81 near the upper and lower ends. The upper sealing plate 83 and the lower sealing plate 84 are respectively movably connected inside the upper and lower slide grooves and can slide left and right. The adjusting threaded rod 82 is rotatably installed inside the reaction tank 1 at the left end of the sampling slot 81. The upper sealing plate 83 and the lower sealing plate 84 are connected by a rod, and the rod is threadedly connected to the outer surface of the adjusting threaded rod 82. Rotating the adjusting threaded rod 82 can drive the upper sealing plate 83 and the lower sealing plate 84 to slide through the rod, thereby controlling the opening and closing of the upper sealing plate 83 and the lower sealing plate 84.

[0042] The working principle of the esterification dehydration device for dry strength agent production provided by the utility model is as follows:

[0043] However, when sampling is required, the adjusting threaded rod 82 is rotated clockwise to drive the upper sealing plate 83 and the lower sealing plate 84 to move to the left end. When the right end of the upper sealing plate 83 slides into the interior of the sampling groove 81, the lower sealing plate 84 completely seals the bottom of the sampling groove 81, and then the adjusting threaded rod 82 is continued to be rotated, and the dry strength agent in the reaction tank 1 flows into the interior of the sampling groove 81 from the inlet of the sampling groove 81. When the dry strength agent fills the interior of the sampling groove 81, the adjusting threaded rod 82 is then rotated counterclockwise to drive the upper sealing plate 83 and the lower sealing plate 84 to move to the right end. When the adjusting threaded rod 82 completely seals the feed port of the sampling groove 81, the left end of the lower sealing plate 84 slides into the interior of the sampling groove 81, the discharge port at the bottom of the sampling groove 81 is opened, and the sample inside the sampling groove 81 flows out from the discharge port.

[0044] Compared with the related art, the esterification dehydration device for dry strength agent production provided by the utility model has the following beneficial effects:

[0045] A sampling assembly 8 is provided at the bottom of the reaction tank 1, and a threaded rod 82 can be rotated to adjust the opening and closing of the upper sealing plate 83 and the lower sealing plate 84, so as to facilitate sampling without hindering the internal reaction and reduce the entry of air during the reaction.

[0046] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An esterification dehydration device for producing dry strength agent, characterized in that: include: A reaction tank, wherein a heating plate is fixedly installed on the inner surface of the reaction tank, and a drainage pipe is fixedly connected to the bottom of the reaction tank; A drive assembly, the drive assembly is arranged on the surface of the reaction tank, the drive assembly comprises a drive motor, the drive motor is fixedly mounted on the outer surface of the top of the reaction tank, a rotating threaded rod is fixedly connected to the bottom of the drive motor, and a stirring shaft is fixedly connected to the bottom of the rotating threaded rod; A stirring assembly, the stirring assembly is arranged inside the reaction tank, the stirring assembly comprises a connecting rod, the connecting rod is fixedly connected to the outer surface of the stirring shaft, the other end of the connecting rod is movably connected to a stirring paddle, the bottom of the stirring shaft is movably connected to a telescopic rod, the top of the telescopic rod is fixedly connected to a spring, and the spring is movably installed inside the stirring shaft; A catalyst storage assembly, the catalyst storage assembly is arranged inside the reaction tank, the catalyst storage assembly includes a storage box, the storage box is fixedly installed on the top of the reaction tank, the outer surface of the storage box is fixedly connected to a feeding pipe, and the other end of the feeding pipe is fixedly connected to the outer surface of the top of the reaction tank; A catalyst spraying assembly is arranged inside the catalyst storage assembly, and the catalyst spraying assembly includes a sliding plate, which is threadedly connected to the outer surface of the rotating threaded rod, a piston is fixedly connected to the bottom of the sliding plate, a nozzle is fixedly connected to the bottom of the storage box, and the piston is movably embedded in the nozzle.

2. The esterification dehydration device for producing dry strength agent according to claim 1, characterized in that: A sampling assembly is arranged at the bottom of the reaction tank, and the sampling assembly includes a sampling slot, which is opened at the bottom of the reaction tank. An adjusting threaded rod is movably installed inside the reaction tank at the left end of the sampling slot, an upper sealing plate is threadedly connected to the outer surface of the top of the adjusting threaded rod, and a lower sealing plate is threadedly connected to the outer surface of the bottom of the adjusting threaded rod.

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