Screen mesh fixing device for fixed bed reactor

Abstract

The utility model discloses a silk screen fixing device for a fixed bed reactor, and relates to the field of reactor auxiliary equipment. A silk screen fixing device for a fixed bed reactor comprises a reaction tank, an air inlet pipe is fixedly communicated with the top of the reaction tank, a discharging pipe is fixedly communicated with the bottom of the reaction tank, exhaust holes are formed in the discharging pipe, and the silk screen fixing device further comprises a grating fixedly installed in the reaction tank; the rotating shaft is rotationally connected to the reaction tank; the piston cylinder is fixedly mounted on the reaction tank, and a piston plate is connected in the piston cylinder in a sliding manner; according to the utility model, the filter holes of the grille can be reversely cleaned through gas sprayed by the gas nozzles, so that the purpose of dredging the filter holes of the grille is achieved, and the connecting column and the gas nozzles are driven to synchronously rotate through the rotating shaft, so that the gas sprayed by the gas nozzles can be used for comprehensively and reversely cleaning the filter holes of the grille; therefore, the reverse cleaning effect on the grid filter holes is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of reactor auxiliary equipment, and specifically relates to a wire mesh fixing device for a fixed bed reactor. Background Art

[0002] A fixed bed reactor, also known as a packed bed reactor, is a reactor filled with solid catalysts or solid reactants to achieve a multiphase reaction process.

[0003] At present, when a fixed bed reactor is used, a grid is usually provided in the reactor in order to reduce the impact of particulate impurities carried in the gas and the gas flow on the catalyst;

[0004] However, the existing reactors lack a mechanism for clearing the grid filter holes, so when the grid filter holes need to be cleaned after the reactor has been used for a period of time, the staff need to use tools to reach into the reactor to clean the grid filter holes. In view of this, the present utility model is specially proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a wire mesh fixing device for a fixed bed reactor which can overcome the above problems or at least partially solve the above problems.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A wire mesh fixing device for a fixed bed reactor comprises a reaction tank, wherein the top of the reaction tank is fixedly connected with an air inlet pipe, the bottom of the reaction tank is fixedly connected with a discharge pipe, and the discharge pipe is provided with an exhaust hole, and further comprises: a grid fixedly installed in the reaction tank; a rotating shaft and a rotating shaft, both of which are rotatably connected to the reaction tank; a piston cylinder fixedly installed on the reaction tank, wherein a piston plate is slidably connected in the piston cylinder, a piston rod is rotatably connected to the piston plate, an end of the piston rod away from the piston plate is rotatably connected to a crankshaft, the crankshaft is fixedly connected to the rotating shaft, a handle is fixedly installed on the rotating shaft, and the rotating shaft is connected to the rotating shaft through a transmission mechanism; a connecting column fixedly connected to the rotating shaft, wherein an air nozzle is fixedly installed on the connecting column, a hollow cavity connected to the air nozzle is provided on the rotating shaft and the connecting column, a rotary joint connected to the hollow cavity is provided on the rotating shaft, and a conduit 1 and a conduit 2 are fixedly connected to the piston cylinder, and an end of the conduit 2 away from the piston cylinder is connected to the rotary joint.

[0008] Preferably, a wire mesh bag is provided in the reaction tank, the wire mesh bag is filled with inert alumina balls, the reaction tank is filled with catalyst, and the wire mesh bag is located on the surface of the catalyst; it also includes an elastic pull rope, one end of which is fixedly connected to the reaction tank, and the other end is fixedly connected to one end of the wire mesh bag.

[0009] Preferably, the transmission mechanism comprises gear 1 and gear 2, wherein gear 1 is fixedly mounted on the rotating shaft, gear 2 is fixedly mounted on the rotating shaft, and gear 1 is meshingly connected with gear 2.

[0010] Preferably, a guide sleeve is fixedly connected to the top inner wall of the reaction tank, a steel wire rope is arranged in the guide sleeve, one end of the steel wire rope is wound around the rotating shaft, and the other end is fixedly connected to the other end of the steel wire net bag.

[0011] Preferably, the reaction tank is provided with a sewage outlet, and a sealing sleeve for closing and sealing the sewage outlet is sleeved on the reaction tank, and the sealing sleeve is detachably connected to the reaction tank by mounting bolts.

[0012] Preferably, it also includes a cover plate for closing and sealing the discharge pipe, and the cover plate is detachably connected to the discharge pipe by a plurality of fixing bolts.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0014] The utility model can perform reverse cleaning of the filter holes of the grille by the gas ejected from the air nozzle, thereby achieving the purpose of unblocking the filter holes of the grille, and the connecting column and the air nozzle are driven to rotate synchronously by the rotating rotating shaft, so that the gas ejected from the air nozzle can perform comprehensive reverse cleaning of the filter holes of the grille, thereby improving the reverse cleaning effect of the filter holes of the grille. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial structural diagram of the utility model Figure 1 ;

[0017] Figure 3 It is a partial structural diagram of the utility model Figure 2 .

[0018] In the figure: 1. reaction tank; 101. air inlet pipe; 102. discharge pipe; 103. exhaust hole; 104. fixing bolt; 2. grille; 201. wire mesh bag; 202. inert alumina ball; 3. elastic pull rope; 301. rotating shaft; 302. handle; 303. wire pull rope; 304. guide sleeve; 4. rotating shaft; 401. connecting column; 402. air nozzle; 403. hollow cavity; 404. rotary joint; 5. piston cylinder; 501. piston plate; 502. piston rod; 503. crankshaft; 504. conduit one; 505. conduit two; 6. gear one; 601. gear two; 7. sewage outlet; 701. sealing sleeve; 702. mounting bolt. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0020] Embodiment 1:

[0021] Reference Figure 1 , Figure 2 and Figure 3 A wire mesh fixing device for a fixed bed reactor comprises a reaction tank 1, wherein the top of the reaction tank 1 is fixedly connected to an air inlet pipe 101, the bottom is fixedly connected to a discharge pipe 102, and the discharge pipe 102 is provided with an exhaust hole 103, and further comprises: a grid 2 fixedly installed in the reaction tank 1; a rotating shaft 301 and a rotating shaft 4, both of which are rotatably connected to the reaction tank 1; a piston cylinder 5, which is fixedly installed on the reaction tank 1, wherein a piston plate 501 is slidably connected in the piston cylinder 5, a piston rod 502 is rotatably connected to the piston plate 501, and an end of the piston rod 502 away from the piston plate 501 is rotatably connected to a crankshaft 503, and the crankshaft 50 3 is fixedly connected to the rotating shaft 301, a handle 302 is fixedly installed on the rotating shaft 301, and the rotating shaft 301 is connected to the rotating shaft 4 through a transmission mechanism; a connecting column 401 is fixedly connected to the rotating shaft 4, wherein an air nozzle 402 is fixedly installed on the connecting column 401, a hollow cavity 403 connected to the air nozzle 402 is opened on the rotating shaft 4 and the connecting column 401, a rotary joint 404 connected to the hollow cavity 403 is arranged on the rotating shaft 4, and a conduit 1 504 and a conduit 2 505 are fixedly connected to the piston cylinder 5, and an end of the conduit 2 505 away from the piston cylinder 5 is connected to the rotary joint 404.

[0022] A wire mesh bag 201 is provided in the reaction tank 1, and the wire mesh bag 201 is filled with inert alumina balls 202. The reaction tank 1 is filled with a catalyst, and the wire mesh bag 201 is located on the surface of the catalyst;

[0023] It also includes an elastic drawstring 3, one end of which is fixedly connected to the reaction tank 1, and the other end of which is fixedly connected to one end of the wire mesh bag 201.

[0024] The transmission mechanism includes gear 1 6 and gear 2 601 . Gear 1 6 is fixedly mounted on the rotating shaft 301 , and gear 2 601 is fixedly mounted on the rotating shaft 4 . Gear 1 6 is meshedly connected with gear 2 601 .

[0025] A guide sleeve 304 is fixedly connected to the inner wall of the top of the reaction tank 1 , and a steel wire rope 303 is arranged inside the guide sleeve 304 . One end of the steel wire rope 303 is wound around the rotating shaft 301 , and the other end is fixedly connected to the other end of the steel wire net bag 201 .

[0026] The device also includes a cover plate for closing and sealing the discharge pipe 102 , and the cover plate is detachably connected to the discharge pipe 102 via a plurality of fixing bolts 104 .

[0027] When the catalyst filled in the reaction tank 1 fails and needs to be replaced, first remove the multiple fixing bolts 104 used to limit and fix the cover plate, then remove the cover plate from the discharge pipe 102, and then open the discharge pipe 102. At this time, the catalyst can be discharged from the reaction tank 1 through the discharge pipe 102. After the failed catalyst is completely discharged from the reaction tank 1, the staff can refill the reaction tank 1 with a new catalyst through the discharge pipe 102, thereby restoring the normal use of the reaction tank 1;

[0028] At the same time, when the catalyst is discharged from the reaction tank 1, the wire mesh bag 201 does not move downward with the descent of the catalyst surface under the traction limit of the elastic pull rope 3, but the side away from the elastic pull rope 3 can tilt downward to prevent the wire mesh bag 201 from moving downward synchronously with the catalyst surface, causing the inert alumina balls 202 in the wire mesh bag 201 to block the discharge pipe 102, thereby allowing the catalyst to be smoothly discharged from the reaction tank 1, thereby reducing the catalyst unloading time;

[0029] At the same time, when one side of the wire net bag 201 is tilted downward, the wire rope 303 can be pulled to drive the rotating shaft 301 to rotate, and the rotating shaft 301 drives the crankshaft 503 to rotate, so that during the rotation of the crankshaft 503, the piston plate 501 can be driven to reciprocate in the piston cylinder 5 through the piston rod 502. When the piston plate 501 moves out of the piston cylinder 5, the external gas is sucked into the piston cylinder 5 through the conduit 1 504 and transported to the piston cylinder 5 for temporary storage. Then, when the piston plate 501 moves into the piston cylinder 5, the gas temporarily stored in the piston cylinder 5 is After being squeezed by the piston plate 501, the gas is transported into the air nozzle 402 through the conduit 2 505 and the hollow cavity 403 in sequence to be ejected, thereby back-cleaning the filter holes of the grille 2, thereby achieving the purpose of unblocking the filter holes of the grille 2. At the same time, the rotating shaft 301 drives the rotating shaft 4 to rotate through the gear 1 6 and the gear 2 601, and the rotating shaft 4 drives the connecting column 401 and the air nozzle 402 to rotate synchronously, so that the gas ejected from the air nozzle 402 can fully back-clean the filter holes of the grille 2, thereby improving the back-cleaning effect of the filter holes of the grille 2.

[0030] It should be noted that when the reaction tank 1 is used to catalyze the reaction of gas, the height difference caused by the sedimentation of the catalyst can be eliminated by the elastic pull rope 3, so that the inert alumina balls 202 in the wire mesh bag 201 can be kept in contact with the surface of the catalyst, and the inert alumina balls 202 can be well used to distribute the gas and reduce the impact of the airflow on the catalyst.

[0031] Embodiment 2:

[0032] Reference Figure 1 , a wire mesh fixing device for a fixed bed reactor, which is basically the same as Example 1, and further, a sewage outlet 7 is opened on the reaction tank 1, and a sealing sleeve 701 for closing and sealing the sewage outlet 7 is sleeved on the reaction tank 1, and the sealing sleeve 701 is detachably connected to the reaction tank 1 through mounting bolts 702; after completing the reverse cleaning of the filter holes of the grid 2, first remove the multiple mounting bolts 702 for limiting and fixing the sealing sleeve 701, and then remove the sealing sleeve 701 from the outer wall of the reaction tank 1, and then open the sewage outlet 7, so as to facilitate the staff to clean the particulate impurities attached to the surface of the grid 2 after the reverse cleaning.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A wire mesh fixing device for a fixed bed reactor, comprising a reaction tank (1), wherein the top of the reaction tank (1) is fixedly connected to an air inlet pipe (101), and the bottom is fixedly connected to a discharge pipe (102), and the discharge pipe (102) is provided with an exhaust hole (103), characterized in that: Also includes: A grid (2) fixedly mounted in the reaction tank (1); The rotating shaft (301) and the rotating shaft (4) are both rotatably connected to the reaction tank (1); The piston cylinder (5) is fixedly mounted on the reaction tank (1). The piston cylinder (5) is slidably connected with a piston plate (501), the piston plate (501) is rotatably connected with a piston rod (502), one end of the piston rod (502) away from the piston plate (501) is rotatably connected with a crankshaft (503), the crankshaft (503) is fixedly connected to a rotating shaft (301), a handle (302) is fixedly mounted on the rotating shaft (301), and the rotating shaft (301) is connected to the rotating shaft (4) through a transmission mechanism; A connecting column (401) is fixedly connected to the rotating shaft (4). The connecting column (401) is fixedly provided with an air nozzle (402); the rotating shaft (4) and the connecting column (401) are provided with a hollow cavity (403) connected to the air nozzle (402); the rotating shaft (4) is provided with a rotary joint (404) connected to the hollow cavity (403); the piston cylinder (5) is fixedly provided with a conduit 1 (504) and a conduit 2 (505); the end of the conduit 2 (505) away from the piston cylinder (5) is connected to the rotary joint (404).

2. A wire mesh fixing device for a fixed bed reactor according to claim 1, characterized in that: A wire mesh bag (201) is arranged in the reaction tank (1), the wire mesh bag (201) is filled with inert alumina balls (202), the reaction tank (1) is filled with a catalyst, and the wire mesh bag (201) is located on the surface of the catalyst; It also comprises an elastic drawstring (3), one end of which is fixedly connected to the reaction tank (1), and the other end of which is fixedly connected to one end of the steel wire net bag (201).

3. The wire mesh fixing device for a fixed bed reactor according to claim 1, characterized in that: The transmission mechanism comprises gear one (6) and gear two (601), wherein gear one (6) is fixedly mounted on the rotating shaft (301), and gear two (601) is fixedly mounted on the rotating shaft (4), and gear one (6) is meshingly connected with gear two (601).

4. The wire mesh fixing device for a fixed bed reactor according to claim 1, characterized in that: A guide sleeve (304) is fixedly connected to the inner wall of the top of the reaction tank (1), a steel wire rope (303) is arranged inside the guide sleeve (304), one end of the steel wire rope (303) is wound around the rotating shaft (301), and the other end is fixedly connected to the other end of the steel wire net bag (201).

5. The wire mesh fixing device for a fixed bed reactor according to claim 1, characterized in that: The reaction tank (1) is provided with a sewage outlet (7), and a sealing sleeve (701) is sleeved on the reaction tank (1) for closing and sealing the sewage outlet (7). The sealing sleeve (701) is detachably connected to the reaction tank (1) by means of mounting bolts (702).

6. The wire mesh fixing device for a fixed bed reactor according to claim 1, characterized in that: It also comprises a cover plate for closing and sealing the discharge pipe (102), wherein the cover plate is detachably connected to the discharge pipe (102) via a plurality of fixing bolts (104).

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