Storage device for PVC stabilizer production

Abstract

The utility model discloses a storage device for PVC stabilizer production, and relates to the technical field of PVC stabilizer production. The sealing device comprises a tank body, a driving sealing assembly and a vacuumizing assembly, a sealing ring is fixedly connected to the inner wall of the tank body, a sealing cover is arranged at the top of the sealing ring, and a sealing rubber ring is arranged between the sealing cover and the sealing ring. Through the active sealing assembly, the adjusting mechanism and the sealing rubber ring are matched, the pushing block is continuously extruded through the adjusting mechanism in the transfer process of the tank body, the movable plate drives the pulling plate and the pressing plate to apply uniform downward pressure to the sealing cover, and it is ensured that the sealing rubber ring and the sealing ring are tightly attached; and meanwhile, the pressure is adjusted in real time through the adjusting mechanism, local fatigue sinking caused by long-term pressing of the sealing rubber ring is compensated, the situation that the attaching degree of the sealing face is reduced due to powder accumulation on the edge of the tank opening of the tank body is effectively prevented, and the risk that outside moisture permeates is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of PVC stabilizer production technology, and in particular relates to a storage device for PVC stabilizer production. Background Technology

[0002] PVC stabilizers are chemical additives that prevent or slow down the degradation of polyvinyl chloride during processing and use due to heat, light, oxygen, etc. They inhibit the breaking and cross-linking reactions of PVC molecular chains by absorbing or neutralizing harmful substances such as hydrogen chloride and free radicals produced during the degradation process.

[0003] During the production process of PVC stabilizers, mobile transfer tanks are required for temporary storage. Existing transfer tanks mostly use flange or threaded caps with sealing rings. However, frequent movement and vibration during transfer can easily cause momentary loosening between the cap and the tank opening. The sealing ring may also experience local fatigue and indentation due to uneven pressure over a long period of time. In addition, powder tends to accumulate at the edge of the tank opening, further reducing the sealing surface fit. External moisture can easily seep into the tank through gaps, causing the raw material to absorb moisture and clump, affecting the uniformity of batch materials and making it unsuitable for use.

[0004] To address these issues, we provide a storage device for PVC stabilizer production. Utility Model Content

[0005] The purpose of this invention is to provide a storage device for PVC stabilizer production. By combining an active sealing component and a vacuum component, it solves the problem that the sealing of the existing PVC stabilizer production storage device is prone to failure, which allows external air to enter the tank, causing the stored PVC stabilizer to absorb moisture and clump, thus affecting the uniformity of batch materials.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a storage device for PVC stabilizer production, comprising a tank, an active sealing assembly, and a vacuum assembly. A sealing ring is fixedly connected to the inner wall of the tank, and a sealing cap is provided on the top of the sealing ring. A sealing rubber ring is provided between the sealing cap and the sealing ring. The active sealing assembly includes two control shells, each fixedly connected to the tank on one side. A movable plate is provided within the inner cavity of each control shell, a push block is fixedly connected to the bottom of the movable plate, and a pull plate is fixedly connected to the top of the movable plate. The top of the pull plate passes through the control shell and is movably connected to a pressure plate. An adjustment mechanism is provided at the rear of the tank. The vacuum assembly includes a gas chamber, the bottom of which is fixedly connected to the sealing cap. A suction pipe and an exhaust pipe are respectively connected to the left side and top of the gas chamber. The end of the suction pipe away from the gas chamber extends into the inner cavity of the tank. One-way valves are installed on the surfaces of both the suction pipe and the exhaust pipe. A suction mechanism is provided within the inner cavity of the gas chamber.

[0008] The present invention is further configured such that the adjusting mechanism includes a squeezing ring, both sides of the front side of the squeezing ring extending into the inner cavity of the control shell, and a screw is provided on the rear side of the squeezing ring. The front side of the screw extends through the squeezing ring and is movably connected to the tank body. The squeezing ring can cooperate with the screw to squeeze the inclined surfaces of the two push blocks, causing the movable plate and pull plate to move downward. The position of the squeezing ring is controlled by the screw, so that it continuously squeezes the push blocks, thereby increasing the sealing effect between the sealing cap and the tank body.

[0009] The present invention is further configured such that a knob is fixedly connected to the rear side of the screw, and push handles are fixedly connected to both sides of the top of the extrusion ring. The knob facilitates the user to rotate the screw, and the push handles facilitate the user to control the movement of the can.

[0010] The present invention is further configured such that sliding rods are fixedly connected to both sides of the rear side of the tank, and sliding sleeves are slidably connected to the surface of the sliding rods. The surface of the sliding sleeves is fixedly connected to the extrusion ring. The sliding rods and sliding sleeves can limit the extrusion ring, so that it can move back and forth smoothly and prevent it from deviating during the movement.

[0011] The present invention is further configured such that a sliding groove is provided on the front side of the movable plate, and a sliding strip is slidably connected to the inner cavity of the sliding groove. The front side of the sliding strip is fixedly connected to the inner wall of the control shell. The sliding groove and the sliding strip are used to limit the movable plate, prevent it from tilting during the process of controlling the height of the plate, and increase its movement stability.

[0012] The present invention is further configured such that the top of the pull plate is movably connected to the pressure plate via a bearing, and a universal wheel is fixedly connected to the bottom of the can. The bearing enables the pressure plate to rotate freely, making it easy for the user to open the sealing cover, and the universal wheel facilitates the adjustment of the position of the can.

[0013] The present invention is further configured such that the air extraction mechanism includes a piston, a spring is fixedly connected to the left side of the piston, and a pull rod is fixedly connected to the right side of the piston. The right side of the pull rod passes through the air chamber and is fixedly connected to a handle. The piston can cooperate with the pull rod to transport air inside the air chamber, extract air from the tank through the air extraction pipe, and then discharge air through the exhaust pipe. The spring can cause the piston to move and then return to its original position.

[0014] The present invention is further provided that a handle is fixedly connected to the front and rear sides of the top of the sealing cap, and a viewing window is provided on the front side of the tank. The handle makes it easy for the user to open the sealing cap, and the viewing window allows the user to easily observe the storage of materials inside the tank.

[0015] The present invention has the following beneficial effects.

[0016] 1. This utility model utilizes an active sealing component, with the cooperation of an adjustment mechanism and a sealing ring, to continuously compress the push block during tank transfer. This causes the movable plate to drive the pull plate and pressure plate to apply uniform downward pressure to the sealing cover, ensuring a tight fit between the sealing ring and the sealing ring. This prevents the cover from loosening instantly due to vibration. Simultaneously, the adjustment mechanism adjusts the pressure in real time to compensate for local fatigue depressions in the sealing ring caused by long-term pressure. This effectively prevents the decrease in sealing surface fit caused by powder accumulation at the edge of the tank opening, reduces the risk of external moisture infiltration, ensures the dry state of the PVC stabilizer inside the tank, and maintains the uniformity of batch materials.

[0017] 2. This utility model utilizes a vacuum assembly, with the cooperation of an air chamber and a vacuuming mechanism, to cause the piston to reciprocate after the sealing cover is closed. This continuously draws air from inside the tank into the air chamber through the vacuum pipe and discharges it through the exhaust pipe. Combined with a one-way valve, a one-way airflow channel is formed, which quickly brings the inside of the tank into a low-pressure state, reducing the impact of residual air humidity on the PVC stabilizer. At the same time, the vacuum state reduces the contact time between the powder and the air, inhibiting moisture absorption and agglomeration, and ensuring the stability of the storage environment and the consistency of material quality. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 A perspective view of a storage device for the production of PVC stabilizers;

[0020] Figure 2 Rear view of a storage device for the production of PVC stabilizers;

[0021] Figure 3 A cross-sectional view of a tank in a storage device for the production of PVC stabilizers;

[0022] Figure 4 A cross-sectional view of the gas chamber in a storage device for the production of PVC stabilizers;

[0023] Figure 5 A cross-sectional view of the control shell in a storage device for the production of PVC stabilizers;

[0024] Figure 6 A storage device for the production of PVC stabilizers Figure 3 A magnified view of part A in the image.

[0025] In the attached diagram: 1. Tank body; 2. Sealing ring; 3. Sealing cover; 4. Sealing rubber ring; 5. Active sealing assembly; 51. Control shell; 52. Movable plate; 53. Push block; 54. Pull plate; 55. Pressure plate; 56. Adjustment mechanism; 6. Vacuum assembly; 61. Gas chamber; 62. Vacuum pipe; 63. Exhaust pipe; 64. One-way valve; 65. Vacuuming mechanism; 561. Compression ring; 562. Screw; 7. Caster wheel; 651. Piston; 652. Spring; 653. Pull rod. Detailed Implementation

[0026] The technical solutions of the present invention will be described below with reference to the accompanying drawings of the embodiments of the present invention. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Example 1

[0028] Please see Figure 1-6 This utility model relates to a storage device for PVC stabilizer production, comprising a tank 1, an active sealing assembly 5, and a vacuum assembly 6. A sealing ring 2 is fixedly connected to the inner wall of the tank 1, a sealing cap 3 is provided on the top of the sealing ring 2, and a sealing rubber ring 4 is provided between the sealing cap 3 and the sealing ring 2. The active sealing assembly 5 includes two control shells 51, each fixedly connected to the tank 1 on opposite sides. A movable plate 52 is provided inside the control shell 51, and a push block 53 is fixedly connected to the bottom of the movable plate 52. A pull plate 54 is fixedly connected to the top. The top of the pull plate 54 passes through the control shell 51 and is movably connected to a pressure plate 55. An adjustment mechanism 56 is provided on the rear side of the tank body 1. The vacuum assembly 6 includes a gas chamber 61. The bottom of the gas chamber 61 is fixedly connected to the sealing cover 3. The left side and top of the gas chamber 61 are respectively connected to a suction pipe 62 and an exhaust pipe 63. The end of the suction pipe 62 away from the gas chamber 61 passes through the inner cavity of the tank body 1. A one-way valve 64 is installed on the surface of both the suction pipe 62 and the exhaust pipe 63. A suction mechanism 65 is provided in the inner cavity of the gas chamber 61.

[0029] Specifically: the sealing ring 2 can cooperate with the sealing cap 3 to compress the sealing rubber ring 4, so that the can 1 can be in a sealed state; the adjusting mechanism 56 can compress the two push blocks 53, so that it controls the movable plate 52 to move downward; the movable plate 52 can prevent the pull plate 54 from disengaging from the inner cavity of the control shell 51; the pressure plate 55 can cooperate with the pull plate 54 to compress the sealing cap 3, so that the sealing cap 3 and the sealing ring 2 can compress the sealing rubber ring 4, actively sealing the can 1 and preventing external air from entering the can 1; the air chamber 61 can cooperate with the air extraction pipe 62, the exhaust pipe 63 and the one-way valve 64 to extract the air from the inside of the can 1, so that the inside of the can 1 is in a relatively vacuum environment, preventing air from affecting the PVC stabilizer; the air extraction mechanism 65 can cooperate with the air chamber 61 to facilitate the user to extract the air from the inside of the can 1.

[0030] Example 2

[0031] Please see Figure 1-6 Based on Embodiment 1, the adjusting mechanism 56 includes a compression ring 561. Both sides of the front of the compression ring 561 extend into the inner cavity of the control housing 51. A screw 562 is provided on the rear side of the compression ring 561. The front side of the screw 562 extends through the compression ring 561 and is movably connected to the tank body 1. A knob is fixedly connected to the rear side of the screw 562. Push handles are fixedly connected to both sides of the top of the compression ring 561. Slide rods are fixedly connected to both sides of the rear side of the tank body 1. Sliding sleeves are slidably connected to the surface of the slide rods, and the surface of the sliding sleeves is fixedly connected to the compression ring 561. The front of the movable plate 52... A sliding groove is provided on the side, and a sliding strip is slidably connected to the inner cavity of the sliding groove. The front side of the sliding strip is fixedly connected to the inner wall of the control shell 51. The top of the pull plate 54 is movably connected to the pressure plate 55 through a bearing. A universal wheel 7 is fixedly connected to the bottom of the tank body 1. The air extraction mechanism 65 includes a piston 651. A spring 652 is fixedly connected to the left side of the piston 651. A pull rod 653 is fixedly connected to the right side of the piston 651. The right side of the pull rod 653 passes through the air chamber 61 and is fixedly connected to a handle. Handles are fixedly connected to the front and rear sides of the top of the sealing cover 3. A viewing window is provided on the front side of the tank body 1.

[0032] Specifically: the compression ring 561 cooperates with the screw 562 to compress the inclined surfaces of the two push blocks 53, causing them to control the downward movement of the movable plate 52 and the pull plate 54. The screw 562 controls the position of the compression ring 561, causing it to continuously compress the push blocks 53, increasing the sealing effect between the sealing cap 3 and the tank body 1. The knob allows the user to easily rotate the screw 562, and the push handle allows the user to easily control the movement of the tank body 1. The sliding rod and sliding sleeve limit the compression ring 561, allowing it to move smoothly back and forth and preventing it from deviating during movement. The sliding groove and sliding strip are used to control the movable plate 52. The limit switch prevents tilting during the height control of the pull plate 54, increasing its smooth movement. The bearing allows the pressure plate 55 to rotate freely, making it easy for the user to open the sealing cover 3. The caster wheel 7 facilitates the position adjustment of the tank 1. The piston 651 works with the pull rod 653 to transport air into the air chamber 61. The air is extracted from the tank 1 through the air extraction pipe 62 and then discharged through the exhaust pipe 63. The spring 652 allows the piston 651 to return to its original position after movement. The handle makes it easy for the user to open the sealing cover 3. The viewing window allows the user to easily observe the material storage status inside the tank 1.

[0033] The working principle of this utility model is as follows: When it is necessary to seal the tank 1, after aligning the sealing cover 3 with the sealing ring 2, the screw 562 drives the extrusion ring 561 to move forward along the slide rod. After the inclined surface at the front end of the extrusion ring 561 contacts the push block 53, it pushes the movable plate 52 to slide downward. The movable plate 52 drives the pull plate 54 and the pressure plate 55 to apply continuous vertical pressure to the sealing cover 3, so that the sealing ring 4 undergoes uniform deformation between the sealing ring 2 and the sealing cover 3 to form a sealing barrier. This effectively prevents the decrease in the sealing surface fit caused by the accumulation of powder at the edge of the tank opening of the tank 1, reduces the risk of external moisture infiltration, and ensures the stability of the PVC inside the tank 1. The dry state of the stabilizer maintains the uniformity of batch materials. After the sealing cap 3 is closed, the user pulls the handle back and forth, which drives the lever 653 and piston 651 to move in the air chamber 61. The air inside the tank 1 is drawn into the air chamber 61 through the air extraction pipe 62. When the piston 651 is pushed forward, the one-way valve 64 prevents the gas from flowing back and forces the gas to be discharged from the exhaust pipe 63. The cyclic operation gradually forms a vacuum state inside the tank 1, reducing the impact of residual air humidity on the PVC stabilizer. At the same time, the vacuum state reduces the contact time between the powder and the air, inhibits moisture absorption and agglomeration, and ensures the stability of the storage environment and the consistency of material quality.

[0034] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A storage device for PVC stabilizer production, comprising a tank (1), an active sealing assembly (5), and a vacuum assembly (6), characterized in that: A sealing ring (2) is fixedly connected to the inner wall of the tank (1), and a sealing cover (3) is provided on the top of the sealing ring (2). A sealing rubber ring (4) is provided between the sealing cover (3) and the sealing ring (2). The active sealing assembly (5) includes two control shells (51), and the opposite sides of the two control shells (51) are fixedly connected to the tank body (1). The inner cavity of the control shell (51) is provided with a movable plate (52). A push block (53) is fixedly connected to the bottom of the movable plate (52). A pull plate (54) is fixedly connected to the top of the movable plate (52). The top of the pull plate (54) passes through the control shell (51) and is movably connected to a pressure plate (55). An adjustment mechanism (56) is provided on the rear side of the tank body (1). The vacuum assembly (6) includes a gas chamber (61), the bottom of which is fixedly connected to the sealing cover (3). The left side and top of the gas chamber (61) are respectively connected to a suction pipe (62) and an exhaust pipe (63). The end of the suction pipe (62) away from the gas chamber (61) extends into the inner cavity of the tank (1). One-way valves (64) are installed on the surfaces of both the suction pipe (62) and the exhaust pipe (63). A suction mechanism (65) is provided in the inner cavity of the gas chamber (61).

2. The storage device for PVC stabilizer production according to claim 1, characterized in that: The adjustment mechanism (56) includes a compression ring (561), both sides of the front side of the compression ring (561) penetrate into the inner cavity of the control shell (51), and a screw (562) is provided on the rear side of the compression ring (561). The front side of the screw (562) penetrates the compression ring (561) and is movably connected to the tank (1).

3. A storage device for PVC stabilizer production according to claim 2, characterized in that: A knob is fixedly connected to the rear side of the screw (562), and push handles are fixedly connected to both sides of the top of the compression ring (561).

4. A storage device for PVC stabilizer production according to claim 2, characterized in that: Both sides of the rear side of the tank (1) are fixedly connected to sliding rods, and sliding sleeves are slidably connected to the surface of the sliding rods. The surface of the sliding sleeves is fixedly connected to the extrusion ring (561).

5. A storage device for PVC stabilizer production according to claim 1, characterized in that: The front side of the movable plate (52) is provided with a sliding groove, and a slide bar is slidably connected to the inner cavity of the sliding groove. The front side of the slide bar is fixedly connected to the inner wall of the control shell (51).

6. A storage device for PVC stabilizer production according to claim 1, characterized in that: The top of the pull plate (54) is movably connected to the pressure plate (55) via a bearing, and the bottom of the tank (1) is fixedly connected to a caster wheel (7).

7. A storage device for PVC stabilizer production according to claim 1, characterized in that: The air extraction mechanism (65) includes a piston (651), a spring (652) is fixedly connected to the left side of the piston (651), a pull rod (653) is fixedly connected to the right side of the piston (651), and a handle is fixedly connected to the right side of the pull rod (653) through the air chamber (61).

8. A storage device for PVC stabilizer production according to claim 1, characterized in that: The sealing cap (3) has handles fixedly connected to the front and rear sides of the top, and the tank body (1) has a viewing window on the front side.

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