A hydrolysis kettle feeder

Abstract

The present invention discloses a hydrolysis kettle feeder, comprising a housing, a feed hopper, a first water inlet pipe, and a discharge pipe. The feed hopper is located above the housing, the first water inlet pipe is located within the feed hopper, and the housing is provided with an upper drain plate, a rotating shaft, and a pusher block. The upper drain plate is internally connected to the inner surface of the housing and is provided with an upper drain hole extending vertically therethrough. The pusher block is connected to the rotating shaft and rotates about the rotating shaft, intermittently blocking the upper drain hole. The present invention solves the problem of acrylic fiber waste not being fully soaked by water, resulting in some waste entering the hydrolysis kettle. This invention achieves continuous feeding and mixing, greatly improving mixing efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of hydrolyzed polyacrylonitrile ammonium salt production, in particular to a hydrolysis kettle feeder. Background Art

[0002] During oil drilling operations, large amounts of fluid loss additives are added to the drilling fluid. These additives reduce the amount of fluid lost from the drilling mud, its apparent viscosity, and the loss of harmful liquids into the formation. They also fill cracks in the wellbore wall, providing stable support and preventing collapse. Hydrolyzed polyacrylonitrile ammonium salt, a type of fluid loss additive, boasts excellent temperature and salt tolerance, a moderate relative molecular weight, and contains a large number of hydration groups and sodium hydroxy groups. This additive offers excellent fluid loss reduction and stable performance, making it a recognized and recommended fluid loss additive.

[0003] The preparation process of hydrolyzed polyacrylonitrile ammonium salt is to put acrylic waste into a hydrolysis kettle and hydrolyze it under high temperature and high pressure to produce it. Since the main component of a large amount of waste clothing is acrylic, waste clothing is usually used as acrylic raw material to save costs. In the early stage of production, workers first sort and remove impurities from the waste clothing and use a shredder to cut it into pieces. The clothes are then put into the hydrolysis kettle and soaked with water. This process causes uneven water injection and a small amount of water, resulting in slow soaking of the clothes. Manual stirring is required, resulting in a long feeding time. At the same time, the feed port of the hydrolysis kettle will be opened during the feeding process, and ammonia and mixed hot air will overflow, which greatly endangers the health of on-site personnel. It is necessary to shorten the feeding time and improve the feeding efficiency. Patent application number 201420200352.7 discloses a feeding device for the production of hydrolyzed polyacrylonitrile ammonium salt. The device sprays water and soaks the material during the feeding process by arranging a water inlet pipe at the feeding port of the hopper, thereby improving the mixing efficiency of the material and water. However, when a large amount of material passes through the hopper of this technical solution, the material close to the water inlet will be soaked first, and the material inside it will not be soaked due to the obstruction of external materials. Although the efficiency is slightly improved compared with the original technical solution of adding water after the feeding is completed in the kettle, some dry material still enters the kettle, and the mixing efficiency is still low, which cannot meet the needs. Summary of the Invention

[0004] The purpose of the present invention is to overcome the problem in the prior art that acrylic fiber waste cannot be completely soaked by water, resulting in part of the waste entering the hydrolysis kettle, and to provide a hydrolysis kettle feeder that greatly improves the uniform mixing of acrylic fiber waste and water in advance.

[0005] The objectives of the present invention are achieved through the following technical solutions: A hydrolysis kettle feeder, comprising a shell, a feed hopper, a first water inlet pipe, and a discharge pipe, wherein the feed hopper is located above the shell, the first water inlet pipe is located inside the feed hopper, an upper leakage plate, a rotating shaft, and a pushing block are provided inside the shell, the upper leakage plate is connected to the inner surface of the shell, a vertically penetrating upper leakage hole is provided on the upper leakage plate, the pushing block is connected to the rotating shaft, the pushing block rotates around the rotating shaft, and the pushing block intermittently blocks the upper leakage hole.

[0006] Preferably, a lower leakage plate, a pusher plate, and a second water inlet pipe are provided in the shell. The lower leakage plate is connected to the inner surface of the shell. A lower leakage hole is provided on the lower leakage plate, and a center hole is provided on the upper leakage plate. The rotating shaft passes through the center hole and extends to the top of the lower leakage plate. The pusher plate is connected to the bottom end of the rotating shaft, and the pusher plate rotates around the rotating shaft. The second water inlet pipe is located between the pusher plate and the upper leakage plate.

[0007] Preferably, the position of the upper leakage hole on the upper leakage plate is offset from the position of the lower leakage hole on the lower leakage plate.

[0008] Preferably, the upper leakage hole and the lower leakage hole are both fan-shaped holes, the pushing block is a fan-shaped block with a rectangular cross-section, the upper surface of the pushing block is larger than the top surface of the upper leakage hole, the top surface of the upper leakage hole is smaller than the upper surface of the upper leakage plate, and the top surface of the lower leakage hole is smaller than the upper surface of the lower leakage plate.

[0009] Preferably, the push plate has the same structure as the push block, and the push plate intermittently blocks the lower leakage hole.

[0010] Preferably, a baffle plate is provided in the shell, and the baffle plate is located between the second water inlet pipe and the pushing plate. The baffle plate is vertically arranged, and the side of the baffle plate is connected to the inner surface of the shell.

[0011] Preferably, a spiral blade is provided in the central hole, and the spiral blade is coiled on the rotating shaft.

[0012] Preferably, the number of the upper leakage holes is equal to that of the lower leakage holes, the number of the upper leakage holes and the number of the lower leakage holes are even, and the upper leakage holes and the lower leakage holes are rotationally symmetrical.

[0013] Preferably, an exhaust pipe is provided on the discharge pipe.

[0014] The present invention has the following advantages:

[0015] 1. The present invention realizes the infiltration and mixing of acrylic waste and water in five steps by arranging an upper leakage plate, a pushing block, a lower leakage plate, a pushing plate, and a baffle plate, thereby solving the problem that the acrylic waste cannot be completely infiltrated by water and causes part of the waste to enter the hydrolysis kettle, greatly improving the mixing efficiency, and can make the acrylic waste and water completely mixed even in the continuous feeding state, avoiding manual pounding in the hydrolysis kettle again, and reducing labor intensity.

[0016] 2. The feed pipe is connected to the feed inlet flange of the hydrolysis kettle, and the waste gas such as ammonia in the kettle is discharged through the exhaust pipe, which reduces environmental pollution and improves personnel safety.

[0017] 3. Simple structure, low cost, easy installation and disassembly, and convenient for long-term maintenance and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic cross-sectional view of the present invention;

[0019] Figure 2 yes Figure 1 A top view of the diagram;

[0020] Figure 3 yes Figure 1 Schematic diagram of the top view at point B;

[0021] Figure 4 It is a schematic diagram of the projection position relationship of the present invention.

[0022] In the figure, 1. shell; 2. discharge pipe; 3. exhaust pipe; 4. feed hopper; 5. upper leakage plate; 6. upper leakage hole; 7. rotating shaft; 8. pushing block; 9. first water inlet pipe; 10. center hole; 11. spiral blade; 12. lower leakage plate; 13. lower leakage hole; 14. pushing plate; 15. second water inlet pipe; 16. material blocking plate; 17. driving motor. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] Example 1, as Figure 1As shown, it includes a shell 1, a feed hopper 4, a first water inlet pipe 9, a discharge pipe 2, and a drive motor 17. The shell 1 is a tubular structure. The feed hopper 4 is located above the shell 1. The bottom end of the feed hopper 4 is connected to the upper end of the shell 1 through a flange. The discharge pipe 2 is located at the bottom of the shell 1. An exhaust pipe 3 is installed in the middle of the discharge pipe 2. The exhaust pipe 3 is connected to the exhaust fan. The first water inlet pipe 9 surrounds the inner surface of the feed hopper 4. The first water inlet pipe 9 is welded in the feed hopper 4. The drive motor 17 includes a motor, a reducer, and a bracket. The motor and the reducer are located above the feed port of the shell 1 through the bracket. The lower part of the speed machine is connected to the rotating shaft 7 through a coupling, and an upper leakage plate 5, a pushing block 8, a lower leakage plate 12, a pushing plate 14, a second water inlet pipe 15, and a baffle plate 16 are installed in the shell 1. Pillars are welded inside the shell 1, and the upper leakage plate 5 and the lower leakage plate 12 are placed on the pillars. The upper leakage plate 5 and the lower leakage plate 12 are both circular plates. The upper leakage plate 5 and the lower leakage plate 12 are arranged in parallel. The diameters of the upper leakage plate 5 and the lower leakage plate 12 are equal to the diameter of the shell 1. Two fan-shaped upper leakage holes 6 are vertically penetrated on the upper leakage plate 5, and two fan-shaped lower leakage holes 13 are vertically penetrated on the lower leakage plate 12. Figure 4 As shown, the upper leakage hole 6 and the lower leakage hole 13 are staggered, and the upper leakage hole 6 and the lower leakage hole 13 are overlapped after rotating 180 degrees. The center hole 10 is opened on the center of the upper leakage plate 5, and the rotating shaft 7 passes through the center hole 10 and extends to the top of the lower leakage plate 12, as shown in FIG. Figure 2 As shown, the pusher block 8 is a fan-shaped block with a rectangular cross-section. The lower surface of the pusher block 8 is larger than the hole area of ​​the upper leakage hole 6. The pusher block 8 can block the upper leakage hole 6. The pusher plate 14 is a rectangular plate. There are two pusher blocks 8 and two pusher plates 14. The pusher blocks 8 and the pusher plates 14 are symmetrically arranged with the rotating shaft 7 as the center. The pusher blocks 8 and the pusher plates 14 are fixedly connected to the rotating shaft 7. The second water inlet pipe 15 is located between the pusher plate 14 and the upper leakage plate 5. The second water inlet pipe 15 passes through the shell 1 and surrounds the inner surface of the shell 1. Figure 3 As shown, there are two baffle plates 16, which are arranged in a straight line. The baffle plates 16 are not located directly above the lower leakage hole 13. The baffle plates 16 are located directly above the upper surface of the lower leakage plate 12. The baffle plates 16 are located between the second water inlet pipe 15 and the push plate 14. The baffle plates 16 are located on the opposite side of the rotating shaft 7. The baffle plates 16 are arranged vertically, and the side edges of the baffle plates 16 are respectively welded to the inner surface of the shell 1. The spiral blades 11 are installed in the center hole 10, and the spiral blades 11 are coiled on the rotating shaft 7.

[0025] Example 2 differs from Example 1 in that it only includes a shell 1, a feed hopper 4, a first water inlet pipe 9, a discharge pipe 2, a drive motor 17, an upper leakage plate 5, and two fan-shaped pushing blocks 8. The drive motor 17 includes a motor, a reducer, and a bracket. The motor and the reducer are located above the feed port of the shell 1 through the bracket. The lower part of the reducer is connected to the rotating shaft 7 through a coupling. The rotating shaft 7 extends downward to the top of the upper leakage plate 5. Two fan-shaped upper leakage holes 6 are opened on the upper leakage plate 5. The lower surface of the pushing block 8 is larger than the hole area of ​​the upper leakage hole 6, and the pushing block 8 blocks the upper leakage hole 6.

[0026] Example 3 differs from Example 1 in that it only includes a shell 1, a feed hopper 4, a first water inlet pipe 9, a discharge pipe 2, a drive motor 17, and a rotating shaft 7. An upper leakage plate 5 with an upper leakage hole 6, two pushing blocks 8, a lower leakage plate 12 with a lower leakage hole 13, two pushing plates 14, a second water inlet pipe 15, and two baffle plates 16 are installed in the shell 1. A center hole 10 is provided at the center of the upper leakage plate 5, and a sealing ring is provided in the center hole 10 and the rotating shaft 7 for sealing. The rotating shaft 7 extends to the top of the lower leakage plate 2 through the center hole 10. The pushing plate 14 and the pushing block 8 are both fan-shaped blocks with a rectangular cross-section. The pushing block 8 and the pushing plate 14 can respectively block the upper leakage hole 6 and the lower leakage hole 13.

[0027] The working principle of the present invention is as follows: the driving motor is started, and the acrylic fiber waste is first transported to the feed hopper by the feeder, and the driving motor drives the pushing block to rotate. Since the lower surface of the pushing block is larger than the upper leakage hole, the pushing block intermittently blocks the upper leakage hole, and water is sprayed and soaked in the waste for the first time through the first water inlet pipe. After the pushing block blocks the upper leakage hole, the water accumulates in the shell to completely soak the waste below, completing the second soaking. Then, when the pushing block rotates to leave the upper leakage hole, the lower layer of waste is pushed into the upper leakage hole by the pushing block and falls into the lower leakage plate below. During this period, some unsoaked waste may fall into the bottom together. The pushing plate rotates to push the waste to move into the lower leakage hole. During this period, the second water inlet pipe sprays and soaks part of the waste. This is During the third infiltration, as a large amount of waste material leaked from the top piled up into a mountain, it was cut off by the blocking plate during the pushing process of the push plate, and water was sprayed on the collapsed waste again. This was the fourth infiltration. When the push plate rotated to block the lower leakage hole, the water accumulated on the upper leakage plate infiltrated the waste for the fifth time, and finally entered the hydrolysis kettle through the lower leakage hole, achieving complete and rapid mixing of the waste material and water under the condition of continuous addition of materials to the hydrolysis kettle; the staggered setting of the upper leakage hole and the lower leakage hole prevented the waste material from falling directly into the kettle, increased the infiltration time, and ensured that the waste material was completely infiltrated; the installed spiral blades could discharge the waste material entering the center hole, which is less likely to cause the waste material to block the center hole than the packing seal.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any 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 hydrolysis kettle feeder, comprising a housing (1), a feed hopper (4), a first water inlet pipe (9), and a discharge pipe (2), wherein the feed hopper (4) is located above the housing (1), and the first water inlet pipe (9) is located inside the feed hopper (4), characterized in that: The shell (1) is provided with an upper leakage plate (5), a rotating shaft (7), and a pushing block (8). The upper leakage plate (5) is connected to the inner surface of the shell (1). The upper leakage plate (5) is provided with an upper leakage hole (6) vertically passing through. The pushing block (8) is connected to the rotating shaft (7). The pushing block (8) rotates around the rotating shaft (7). The pushing block (8) intermittently blocks the upper leakage hole (6). The shell (1) is provided with a lower leakage plate (12), a pushing plate (14), and a second water inlet pipe (15). The lower leakage plate (12) is connected to the inner surface of the shell (1); a lower leakage hole (13) is provided on the lower leakage plate (12); a center hole (10) is provided on the upper leakage plate (5); the rotating shaft (7) passes through the center hole (10) and extends to the top of the lower leakage plate (12); the pushing plate (14) is connected to the bottom end of the rotating shaft (7); the pushing plate (14) rotates around the rotating shaft (7); and the second water inlet pipe (15) is located between the pushing plate (14) and the upper leakage plate (5).

2. A hydrolysis kettle feeder according to claim 1, characterized in that: The position of the upper leakage hole (6) on the upper leakage plate (5) is offset from the position of the lower leakage hole (13) on the lower leakage plate (12).

3. A hydrolysis kettle feeder according to claim 2, characterized in that: The upper leakage hole (6) and the lower leakage hole (13) are both fan-shaped holes, the pushing block (8) is a fan-shaped block with a rectangular cross-section, the upper surface of the pushing block (8) is larger than the top surface of the upper leakage hole (6), the top surface of the upper leakage hole (6) is smaller than the upper surface of the upper leakage plate (5), and the top surface of the lower leakage hole (13) is smaller than the upper surface of the lower leakage plate (12).

4. A hydrolysis kettle feeder according to claim 1, characterized in that: The push plate (14) has the same structure as the push block (8), and the push plate (14) intermittently blocks the lower leakage hole (13).

5. A hydrolysis kettle feeder according to claim 1, 2 or 4, characterized in that: A baffle plate (16) is provided in the shell (1), and the baffle plate (16) is located between the second water inlet pipe (15) and the push plate (14). The baffle plate (16) is vertically arranged, and the side of the baffle plate (16) is connected to the inner surface of the shell (1).

6. A hydrolysis kettle feeder according to claim 1, characterized in that: A spiral blade (11) is provided in the central hole (10), and the spiral blade (11) is coiled on the rotating shaft (7).

7. A hydrolysis kettle feeder according to claim 3, characterized in that: The number of the upper leakage holes (6) and the lower leakage holes (13) is equal, the number of the upper leakage holes (6) and the lower leakage holes (13) is an even number, and the upper leakage holes (6) and the lower leakage holes (13) are rotationally symmetrical.

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