Metallocene catalyst washing device

Abstract

The utility model discloses a metallocene catalyst washing device, relates to the field of catalyst production, and aims to solve the problem that in the prior art, a catalyst is accumulated in a washing device body and cannot be completely washed only through a water flow washing mode, so that the catalyst is not fully washed. An annular limiting plate is fixedly arranged on the lower end face in the cleaning barrel, a washing barrel is arranged at the upper end in the annular limiting plate, a water permeable plate is arranged on the lower end face of the washing barrel, a fixing pipe is fixedly connected to the middle of the lower end face of the cleaning barrel, and a booster pump is fixedly connected to the lower end of the fixing pipe. A rotating pipe is arranged on the inner side of the annular limiting plate and located at the lower end of the washing barrel, a plurality of water spraying pipes are arranged at the upper end of the rotating pipe, surging type washing of the metallocene catalyst is achieved through the rotating pipe and the water spraying pipes in cooperation with high-pressure water flow provided by a booster pump, accumulated catalyst particles are effectively scattered, and the washing quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of catalyst production, concretely is a kind of metallocene catalyst washing device. BACKGROUND

[0002] Metallocene catalyst is a kind of efficient catalytic system, and the element complex of group IVB transition metal (such as titanium, zirconium, hafnium) is used as main catalyst, and alkyl aluminum oxane or organoboron compound is used as cocatalyst composition. Its core lies in the metal complex containing metallocycle (cyclopentadienyl or its derivative), and high efficiency, accurate control of chemical reaction is realized by carefully designed ligand structure. Metallocene catalyst plays an important role in the production of polyethylene, polypropylene and other polyolefin materials, and impurities will be attached to the surface of metallocene catalyst after production, which usually needs to be cleaned by washing device.

[0003] For example, the authorized announcement number CN213316526U, a kind of catalyst washing device, including body, the water inlet of body top and the water outlet of body bottom, water inlet and water outlet are provided with sieve plate between, body is set into cylindrical shape, the number of water inlets is four, four water inlets are evenly distributed around body one week, the top of body is provided with water inlet pipe piece that can be detachably communicated with four water inlets, water inlet pipe piece includes main pipe and four vice pipes that are communicated with main pipe, four vice pipes are evenly distributed on the outer side wall of main pipe, four vice pipes can be respectively communicated with four water inlets, water outlet is connected with water outlet pipe, and opening and closing valve is arranged on water outlet pipe. By setting water inlet pipe piece, water enters along four different directions simultaneously from four water inlets of body, and four water inlets are evenly distributed around body one week, the structure setting makes that water flow is not prone to deflection, to a certain extent, reduces the use of water, and plays the effect of saving water.

[0004] The above-mentioned technology only washes the catalyst by water flow, but the catalyst will accumulate in the body, and the catalyst cannot be fully washed by water flow, which leads to insufficient washing of the catalyst. Therefore, there is an urgent need to develop a metallocene catalyst washing device to help people solve the existing problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a metallocene catalyst washing device to solve the problem of insufficient washing of the catalyst in the prior art, which is only washed by water flow.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a metallocene catalyst washing device, including the cleaning cylinder, the inside lower end face of cleaning cylinder is fixedly arranged with annular limit board, the inside upper end of annular limit board is provided with washing barrel, the lower end surface of washing barrel is provided with water permeable board, the lower end of fixed pipe is fixedly connected with booster pump in the middle part of cleaning cylinder lower end surface, the inside of annular limit board is provided with rotating pipe under washing barrel lower end, the upper end of rotating pipe is provided with a plurality of water spray pipes.

[0007] Preferably, the upper end of the washing barrel extends out of the upper end surface of the cleaning cylinder and is fixedly connected with an annular support plate, the upper end of the annular support plate is provided with an upper cover, and the lower end of one side of the cleaning cylinder is fixedly connected with a drain pipe.

[0008] Preferably, a sealing ring is arranged between the inner wall of the annular limit plate and the outer wall of the washing barrel at the upper end, and a plurality of overflow openings are arranged in an annular array on the upper end of the outer wall of the washing barrel.

[0009] Preferably, the lower end of the rotating pipe is fixedly connected with a connecting pipe, and the upper end of the fixed pipe extends into the inside of the annular limit plate and is connected with the lower end of the connecting pipe through a rotary joint.

[0010] Preferably, the lower end of one side of the annular limit plate is rotatably connected with a rotating shaft, one end of the rotating shaft is fixedly connected with a second bevel gear, the connecting pipe is fixedly connected with a first bevel gear, and the second bevel gear is meshingly connected with the tooth part of the first bevel gear.

[0011] Preferably, the lower end of the other side of the cleaning cylinder is fixedly connected with a driving device, a driving motor is fixedly arranged in the inside of the driving device, and the other end of the rotating shaft extends into the inside of the driving device and is fixedly connected with the output end of the driving motor.

[0012] Preferably, the lower end of the booster pump is fixedly connected with a water supply pipe.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] (1) In the utility model, the rotating pipe and the plurality of water spray pipes are arranged, and the high-pressure water flow provided by the booster pump is used to realize the surge washing of the metallocene catalyst. This washing method can not only effectively scatter the accumulated catalyst particles, but also can ensure that the water flow can uniformly penetrate into every corner of the catalyst, thereby greatly improving the washing efficiency and washing quality.

[0015] (2) In the utility model, the rotating pipe is rotated by the driving motor, so that the water spray pipe can continuously change the water spray direction to comprehensively and uniformly wash the catalyst in the washing barrel. Compared with the traditional static washing method, this dynamic washing method can more effectively remove the impurities on the surface of the catalyst.

[0016] (3) The overflow port at the upper end of the washing barrel is designed to allow excess water to automatically overflow into the cleaning cylinder and eventually be discharged through the drain pipe. This automatic drainage design not only simplifies the operation process, but also avoids problems such as reduced washing effect or equipment damage caused by excessive water level. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of a metallocene catalyst washing device of the present utility model;

[0018] Figure 2 It is a front view of a metallocene catalyst washing device of the present utility model;

[0019] Figure 3 It is a front view of a metallocene catalyst washing device of the present utility model;

[0020] Figure 4 It is an enlarged view of detail A of the present utility model.

[0021] In the figure: 1, cleaning cylinder; 101, annular limiting plate; 102, sealing ring; 103, drain pipe; 2, washing barrel; 201, water permeable plate; 202, annular support plate; 203, overflow port; 204, upper cover; 3, fixed pipe; 301, rotary joint; 302, booster pump; 303, water supply pipe; 4, rotating pipe; 401, water jet pipe; 402, connecting pipe; 403, first bevel gear; 5, rotating shaft; 501, second bevel gear; 6, driving device; 601, driving motor. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present utility model will be described clearly and completely below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all the embodiments.

[0023] Please refer to Figures 1-4The utility model provides a kind of metallocene catalyst washing device, including cleaning cylinder 1, annular limiting plate 101 is fixedly arranged in the lower end surface inside cleaning cylinder 1, washing barrel 2 is arranged in the upper end inside annular limiting plate 101, annular support plate 202 is fixedly connected with the upper end of washing barrel 2 and extends out the upper end surface of cleaning cylinder 1, washing barrel 2 is supported by annular support plate 202, upper cover 204 is arranged in the upper end of annular support plate 202, sealing ring 102 is arranged between the upper end of the inner wall of annular limiting plate 101 and the outer wall of washing barrel 2, washing barrel 2 and annular limiting plate 101 are closed by sealing ring 102, water permeable plate 201 is arranged in the lower end surface of washing barrel 2, fixed pipe 3 is fixedly connected with the lower end of cleaning cylinder 1, booster pump 302 is fixedly connected with the lower end of fixed pipe 3, rotating tube 4 is arranged in the lower end of washing barrel 2 and in the inside of annular limiting plate 101, a plurality of water spray pipes 401 are arranged in the upper end of rotating tube 4, connecting pipe 402 is fixedly connected with the middle of the lower end of rotating tube 4, fixed pipe 3 extends to the inside of annular limiting plate 101 and is connected with the lower end of connecting pipe 402 by rotary joint 301, booster pump 302 is fixedly connected with water supply pipe 303, metallocene catalyst is placed in the inside of washing barrel 2, water is supplied to the inside of rotating tube 4 by booster pump 302 through water supply pipe 303, water in the inside of rotating tube 4 is sprayed upwards from a plurality of water spray pipes 401, first, the inside of annular limiting plate 101 and the lower end of washing barrel 2 are filled with water, then water is poured into the inside of washing barrel 2 through the lower end of water permeable plate 201 to surge washing metallocene catalyst, to prevent metallocene catalyst from being not completely washed due to accumulation.

[0024] Please refer to Figure 2 、 Figure 3 and Figure 4 , rotating shaft 5 is rotatably connected with one side of the lower end of annular limiting plate 101, second bevel gear 501 is fixedly connected with one end of rotating shaft 5, first bevel gear 403 is fixedly connected on connecting pipe 402, second bevel gear 501 and first bevel gear 403 are meshingly connected, driving device 6 is fixedly connected with the lower end of the other side end surface of cleaning cylinder 1, driving motor 601 is fixedly arranged in the inside of driving device 6, the other end of rotating shaft 5 extends to the inside of driving device 6 and is fixedly connected with the output end of driving motor 601, rotating shaft 5 is rotated by driving motor 601, in turn rotating shaft 5 drives connecting pipe 402 to rotate, in turn connecting pipe 402 drives rotating tube 4 to rotate, so that water spray pipe 401 can spray water to different positions of the lower end of water permeable plate 201 when rotating tube 4 rotates, realize different position surge washing metallocene catalyst in the inside of washing barrel 2, improve washing efficiency.

[0025] Please refer to Figure 2The washing barrel 2 is provided with a plurality of overflow openings 203 in the annular array on the outer wall of the upper end, and the cleaning cylinder 1 is fixedly connected with a drain pipe 103 at the lower end of one side, so that the washing water in the washing barrel 2 can overflow into the cleaning cylinder 1 and then be discharged through the drain pipe 103.

[0026] Working principle: in use, first, the metallocene catalyst is put into the washing barrel 2, and the upper cover 204 is covered. Then, water is supplied to the device through the water supply pipe 303, and the booster pump 302 is started to pressurize the water and then send it into the rotating pipe 4. The water is uniformly sprayed from the plurality of water spraying pipes 401 at the upper end of the rotating pipe 4, first fills the space between the annular limiting plate 101 and the lower end of the washing barrel 2, and then performs the surge washing on the catalyst in the washing barrel 2 through the water permeable plate 201. At the same time, the driving motor 601 is started to rotate the connecting pipe 402 and the rotating pipe 4 through the rotating shaft 5, so that the water spraying pipe 401 can constantly change the water spraying direction to comprehensively and uniformly wash the catalyst in the washing barrel 2. With the washing, the water level in the washing barrel 2 gradually rises, and when the water level reaches the overflow opening 203, the excess water will overflow from the overflow opening 203 into the cleaning cylinder 1 and then be discharged through the drain pipe 103. In this way, through the combination of the surge washing and the rotating water spraying, the metallocene catalyst is efficiently and comprehensively washed.

[0027] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A metallocene catalyst washing apparatus comprising a washing drum (1), characterised in that: The lower end face inside the cleaning cylinder (1) is fixedly provided with an annular limiting plate (101), the upper end inside the annular limiting plate (101) is provided with a washing barrel (2), the lower end face of the washing barrel (2) is provided with a water permeable plate (201), the middle part of the lower end face of the cleaning cylinder (1) is fixedly connected with a fixed pipe (3), the lower end of the fixed pipe (3) is fixedly connected with a booster pump (302), the inner side of the annular limiting plate (101) and the lower end of the washing barrel (2) are provided with a rotating pipe (4), and the upper end of the rotating pipe (4) is provided with a plurality of water spray pipes (401).

2. The metallocene catalyst washing device according to claim 1, characterized in that: The upper end of the washing barrel (2) extends out of the upper end face of the cleaning cylinder (1) and is fixedly connected with an annular support plate (202), the upper end of the annular support plate (202) is provided with an upper cover (204), and the lower end of one side of the cleaning cylinder (1) is fixedly connected with a drain pipe (103).

3. The metallocene catalyst washing device according to claim 1, characterized in that: The upper end between the inner wall of the annular limiting plate (101) and the outer wall of the washing barrel (2) is provided with a sealing ring (102), and the upper end of the outer wall of the washing barrel (2) is annularly arranged with a plurality of overflow ports (203).

4. The metallocene catalyst washing device according to claim 1, characterized in that: The lower end of the rotating pipe (4) is fixedly connected with a connecting pipe (402), and the upper end of the fixed pipe (3) extends into the inside of the annular limiting plate (101) and is connected with the lower end of the connecting pipe (402) through a rotary joint (301).

5. The metallocene catalyst washing apparatus according to claim 4, characterized in that: The lower end of the annular limiting plate (101) is rotatably connected with a rotating shaft (5), one end of the rotating shaft (5) is fixedly connected with a second bevel gear (501), the connecting pipe (402) is fixedly connected with a first bevel gear (403), and the second bevel gear (501) and the first bevel gear (403) are toothedly connected.

6. The metallocene catalyst washing apparatus according to claim 5, characterized by: The other side end face of the cleaning cylinder (1) is fixedly connected with a driving device (6), the inside of the driving device (6) is fixedly provided with a driving motor (601), and the other end of the rotating shaft (5) extends into the inside of the driving device (6) and is fixedly connected with the output end of the driving motor (601).

7. The metallocene catalyst washing device according to claim 1, characterized in that: The lower end of the booster pump (302) is fixedly connected with a water supply pipe (303).

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