CN210972575U - Catalyst filling equipment for tube reactor - Google Patents

Catalyst filling equipment for tube reactor Download PDF

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Publication number
CN210972575U
CN210972575U CN201921444299.4U CN201921444299U CN210972575U CN 210972575 U CN210972575 U CN 210972575U CN 201921444299 U CN201921444299 U CN 201921444299U CN 210972575 U CN210972575 U CN 210972575U
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China
Prior art keywords
catalyst
cylinder
buffer
tube reactor
conveying cylinder
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CN201921444299.4U
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Chinese (zh)
Inventor
王昊
白志敏
梁卫忠
薛红霞
姜建波
张跃华
徐保民
李丕刚
王玲真
张英魁
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China Petroleum and Chemical Corp
Sinopec Qilu Co
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China Petroleum and Chemical Corp
Sinopec Qilu Co
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Priority to CN201921444299.4U priority Critical patent/CN210972575U/en
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Abstract

A catalyst filling device for a tube reactor belongs to the technical field of catalyst filling. The method is characterized in that: the conveying cylinder (3) is arranged on the lower side of the storage bin (1), one end of the conveying cylinder (3) is communicated with the bottom of the storage bin (1), the other end of the conveying cylinder is provided with a discharging portion, the conveying cylinder (3) is gradually inclined downwards along the direction away from the storage bin (1), the collecting bag (4) is arranged on the lower side of the conveying cylinder (3), the top of the collecting bag (4) is communicated with the conveying cylinder (3), a screen (10) is arranged between the collecting bag (4) and the conveying cylinder (3), and the buffering device (6) is arranged on the lower side of the discharging portion. This shell and tube reactor catalyst loads screen cloth of equipment can sieve the catalyst at the in-process that the catalyst glided along the conveyer barrel, conveniently handles the dust, has avoided the polluted environment, has also avoided the dust to harm the healthy of operation personnel.

Description

Catalyst filling equipment for tube reactor
Technical Field
A catalyst filling device for a tube reactor belongs to the technical field of catalyst filling.
Background
The filling requirement of the catalyst of the tubular reactor is far higher than that of a tubular reactor, in order to ensure normal production, the filling volume and the filling height of the catalyst of each reaction tube are consistent when the catalyst is filled, and the deviation is less than +/-3 percent when the resistance drop of each reaction tube is measured, so that the catalyst can be considered to be filled qualified.
At present, the loading of the reforming catalyst used by the hydrocarbon steam reformer is manually operated, and three methods, namely a cloth bag method, a spiral method and a spring method, are generally used. 1. A cloth bag method: the catalyst is firstly screened and weighed, and then placed in a canvas bag, the canvas bag is manually placed at the bottom of a furnace tube, and the cloth bag opening is loosened to allow the catalyst to fall down to a bed layer, so that the cloth bag filling mode has low efficiency. 2. A spiral method: the catalyst is first sieved and weighed and then loaded with a steel cable with a coil spring, such as CN 207876753U, in a manner which is more efficient than the first method. 3. A spring method: the catalyst is first sieved and weighed and then falls down onto the bed by rotation by means of a spiral structure of nested tubes, as in patent 104755160B, which is a loading method that takes much time due to the insertion and removal of the tubes and takes the most time to load a reformer of the same size.
The three methods for filling the conversion catalyst all require a large amount of manual operation, such as sieving and weighing; when the catalyst powder is sieved, the catalyst powder drifts with the wind, which causes environmental pollution and harms the health of operators. The 1 st cloth bag filling mode has the conditions that personnel operation is unskilled, a cloth bag falls from a higher position, a catalyst is broken, and the filling quality is the worst of the three methods; the catalyst loading quality of the methods 2 and 3 is equivalent; in the 2 nd method, when the operation is carried out, the catalyst pouring speed is often too high, and workers do not operate the motor to roll up the steel wire rope in time, so that the lowermost end or a plurality of emptying screws of the granular conversion catalyst are pressed and clamped in the reaction tube, when the situation occurs, a flange at the lower end of the reaction tube needs to be opened to discharge the catalyst, or the catalyst is sucked out from the upper part of the reaction tube by using a vacuum pump, so that the problems that part of the catalyst is damaged, the high-pressure sealing sheet is invalid and needs to be replaced in the loading and unloading process and the like are caused, and the enterprise cost is increased.
The application number 201711044245.4 of the Chinese invention patent discloses a reformer tube catalyst filling machine, wherein the catalyst is conveyed and added through a transmission belt, but the catalyst cannot be screened, namely, the catalyst needs to be screened manually in the working process, then the screened catalyst is conveyed and added through the transmission belt, and when the catalyst is screened, the catalyst powder is scattered along with the wind, the environmental pollution is caused, and the physical health of operators is harmed.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the catalyst filling equipment of the tube reactor, which can realize automatic sieving in the process of adding the catalyst and avoid the generated dust from harming the health of operators, is provided.
The utility model provides a technical scheme that its technical problem adopted is: the catalyst filling equipment for the tubular reactor is characterized in that: including feed bin, a transport cylinder, collecting bag and buffer, the transport cylinder sets up the downside at the feed bin, and transport cylinder one end is linked together with the bottom of feed bin, and the other end is provided with ejection of compact portion, and the transport cylinder is for following the decurrent slope form gradually of the direction of keeping away from the feed bin, and the collecting bag sets up at the transport cylinder downside, and the top of collecting bag is linked together with the transport cylinder, is provided with the screen cloth between collecting bag and the transport cylinder, and buffer sets up at ejection of compact portion downside.
Preferably, the middle lower side of the conveying cylinder is open to form a sieving part, the screen is arranged on the sieving part, and the collecting bag is hermetically connected with the outer wall of the conveying cylinder and communicated with the conveying cylinder through the sieving part.
Preferably, one end of the conveying cylinder, which is far away from the storage bin, is bent downwards to form a discharging part with a downward opening.
Preferably, an automatic weighing machine is arranged between the storage bin and the conveying cylinder.
Preferably, the buffer device is connected with a lifting device, and the lifting device is arranged on the upper side of the conveying cylinder.
Preferably, the lifting device comprises a hoisting drum, a pull rope and a lifting motor, the hoisting drum is horizontally arranged on the upper side of the conveying drum, the upper end of the pull rope is connected with the hoisting drum, and the lower end of the pull rope penetrates through the discharging part of the conveying drum and then is connected with the buffer device.
Preferably, a cam is arranged on the side of the pull rope, the cam is connected with a cam motor for driving the cam to rotate, and the cam is matched with the pull rope to drive the buffer device to shake.
Preferably, the buffer device is arranged in a plurality from top to bottom at intervals.
Preferably, the distance between every two adjacent buffer devices is less than or equal to 1 m.
Preferably, the buffer device comprises a plurality of springs, the springs are arranged around the pull rope and fixedly connected with the pull rope, and the springs are arranged along the radial direction of the pull rope.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
1. this tubular reactor catalyst loads equipment's catalyst adds the stove intraductal through a transport section of thick bamboo addition, the slope of a transport section of thick bamboo sets up, gravity through the catalyst adds, do not need extra power, the screen cloth can sieve the catalyst at the in-process that the catalyst glided along a transport section of thick bamboo, make catalyst powder or broken catalyst fall to the collection bag in through the screen cloth, intact catalyst enters into the stove pipe, conveniently handle the dust, the polluted environment has been avoided, the dust harm operating personnel's is healthy also avoided, the filling efficiency of conversion catalyst is improved, reduce operating personnel's intensity of labour, reduce environmental pollution, the shortcoming of above-mentioned three kinds of methods has been avoided, can the efficient completion catalyst fill, and the control index that the quality of filling accords with the enterprise.
2. The collecting bag is connected with the outer wall of the conveying cylinder in a sealing way, so that dust pollution is avoided.
3. The one end that the feed bin was kept away from to the transport cylinder is buckled downwards, forms the ejection of compact portion that the opening is down, conveniently carries the catalyst to in the furnace pipe of vertical setting.
4. The automatic weighing machine can automatically weigh the catalyst, so that the quantity of the catalyst in each furnace pipe is equal, and the height of the catalyst in each furnace pipe is consistent.
5. The lifting device can drive the buffer device to lift, so that the phenomenon that the catalyst is broken due to overlarge free falling distance of the catalyst is avoided.
6. The lifting motor drives the winding drum to rotate, the winding drum drives the buffer device to lift through the pull rope, the buffer device is convenient to lift, the lifting process cannot be hindered by the furnace tube or the conveying drum, and the lifting distance can be adjusted as required.
7. The cam motor drives the cam to rotate, the cam pushes the buffer device to shake through the pull rope, so that the catalyst is prevented from staying on the buffer device, and catalyst particles are uniformly dispersed in the furnace tube.
8. The buffer devices are arranged at intervals, so that the phenomenon that the catalyst is broken due to overlarge descending distance of the catalyst is avoided.
9. The distance between the buffer devices is less than or equal to 1m, so that the requirement that the catalyst supplier has the barrier-free falling distance of less than or equal to 1m is met, and the catalyst is prevented from being damaged.
10. Cushion the catalyst through a plurality of springs that encircle the stay cord setting, buffering effect is good, and can avoid and catalyst between produce the impact, lead to the catalyst damage.
Drawings
FIG. 1 is a schematic sectional front view of a catalyst packing apparatus for a shell and tube reactor.
Fig. 2 is a schematic top view of the buffering device.
In the figure: 1. the automatic weighing device comprises a bin 2, an automatic weighing machine 3, a conveying cylinder 4, a collecting bag 5, a pull rope 6, a buffer device 7, a winding cylinder 8, a cam 9, a spring 10 and a screen.
Detailed Description
Fig. 1 to 2 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 2.
The utility model provides a shell and tube reactor catalyst loads equipment, including feed bin 1, a transport cylinder 3, collecting bag 4 and buffer 6, a transport cylinder 3 sets up the downside at feed bin 1, 3 one end of a transport cylinder are linked together with the bottom of feed bin 1, the other end is provided with ejection of compact portion, a transport cylinder 3 is for following the downward slope form gradually of the direction of keeping away from feed bin 1, collecting bag 4 sets up at a transport cylinder 3 downside, collecting bag 4's top and a transport cylinder 3 are linked together, be provided with screen cloth 10 between collecting bag 4 and the transport cylinder 3, buffer 6 sets up at ejection of compact portion downside. This tubular reactor catalyst loads catalyst of equipment adds the stove intraductal through transport cylinder 3 addition, 3 slopes of transport cylinder set up, gravity through the catalyst adds, do not need extra power, screen cloth 10 can sieve the catalyst along the in-process that transport cylinder 3 slided down at the catalyst, make catalyst powder or broken catalyst fall to collecting bag 4 in through screen cloth 10, intact catalyst enters into the stove pipe in, the convenience is handled the dust, the polluted environment has been avoided, the dust harm operating personnel's is healthy also avoided.
The present invention is further described with reference to specific embodiments, however, it will be understood by those skilled in the art that the detailed description given herein with respect to the drawings is for better explanation and that the present invention is necessarily to be construed as limited to those embodiments, and equivalents or common means thereof will not be described in detail but will fall within the scope of the present application.
Specifically, the method comprises the following steps: as shown in FIGS. 1-2: the conveying cylinder 3 is arranged on the lower side of the storage bin 1, the left end of the conveying cylinder 3 is communicated with the bottom of the storage bin 1, the right end line of the conveying cylinder 3 is bent downwards to form a discharging portion with a downward opening, and when the catalyst is added into the furnace tube, the discharging portion of the conveying cylinder 3 extends into the upper end of the furnace tube, so that the catalyst is conveniently fed into the furnace tube. The conveying cylinder 3 is gradually inclined downwards along the direction far away from the storage bin 1, so that the catalyst in the storage bin 1 slides downwards along the inner wall of the conveying cylinder 3 under the action of gravity and is conveyed into the furnace tube.
An automatic weighing machine 2 is arranged between the left ends of the bin 1 and the conveying cylinder 3, a feed inlet of the automatic weighing machine 2 is communicated with the bottom of the bin 1, and a discharge outlet of the automatic weighing machine 2 is communicated with the left end of the conveying cylinder 3, so that weighed catalyst can be fed into the furnace tube through the conveying cylinder 3, and the catalyst in the furnace tube is guaranteed to be consistent in height.
The uncovered setting of middle part downside of a transport cylinder 3, form the portion of sieving, screen cloth 10 sets up the lower part at a transport cylinder 3, and the portion of sieving seals, collect bag 4 and be the open bag body of upside, the sealed setting of the outer wall of the last mouthful of collection bag 4 and a transport cylinder 3, the portion of sieving sets up in collecting bag 4, thereby can sieve the catalyst in catalyst transportation process, make catalyst powder or broken catalyst fall to in collecting bag 4, avoid producing dust pollution, also avoid endangering the healthy of operation personnel.
Buffer 6 sets up the ejection of compact portion downside at transport cylinder 3, and buffer 6 is provided with a plurality ofly by lower supreme interval, and buffer 6 is connected with the elevating gear who drives its lift. When adding the catalyst, the buffer device 6 is put into the corresponding furnace tube. The distance between every two adjacent buffer devices 6 is less than or equal to 1m, so that the requirement that the catalyst supplier has the unobstructed free-falling distance of the catalyst to be less than or equal to 1m is met, and the catalyst is prevented from being damaged. The spacing between every two adjacent cushioning devices 6 is typically 1 m.
The lifting device comprises a winch barrel 7, a pull rope 5 and a lifting motor (not shown in the figure), the winch barrel 7 is arranged on the upper side of the conveying barrel 3, the winch barrel 7 is horizontally arranged, an output shaft of the lifting motor is connected with the winch barrel 7 and drives the winch barrel to rotate, the upper end of the pull rope 5 is connected with the winch barrel 7, and the lower end of the pull rope penetrates through the discharge end of the conveying barrel 3 and then is connected with the plurality of buffering devices 6 simultaneously to drive the buffering devices 6 to lift. In the present embodiment, the rope 5 is a wire rope.
The lateral part of stay cord 5 is provided with cam 8, and cam 8 sets up in the 3 upside of transport cylinder to be located the downside of hoist cylinder 7, the axis of cam 8 and the axis parallel arrangement of hoist cylinder 7, cam 8 are connected with and drive its pivoted cam motor (not drawn in the picture), and cam motor drives cam 8 and rotates, thereby makes the shake of stay cord 5, avoids the catalyst to stop on buffer 6.
Every buffer 6 all includes many springs 9, and spring 9 encircles 5 interval equipartitions of stay cord, and spring 9 radially sets up along stay cord 5, and spring 9 inner and stay cord 5 fixed connection, outer end and the interval setting of the boiler tube inner wall that corresponds. In the present embodiment, each damping device 6 comprises six springs 9.
The winch drum 7 is provided with a pressure sensor, the pressure sensor is used for detecting the pressure of the pull rope 5 on the winch drum 7, when the pressure sensor detects a pressure signal, the lifting motor does not rotate, when the pressure sensor cannot detect the pressure signal, the lifting motor rotates, and the cam motor stops rotating.
The working process of the catalyst filling equipment of the tubular reactor is as follows: the catalyst is placed into the stock bin 1, the automatic weighing machine 2 sends the weighed catalyst into the corresponding furnace pipe through the conveying cylinder 3, the cam motor drives the cam 8 to rotate, the catalyst drops and impacts the buffer device 6, the pressure sensor on the winch cylinder 7 detects a signal, and the lifting motor part rotates.
After the catalyst falls, the pressure sensor on the winch cylinder 7 cannot detect a signal, the cam motor drives the cam 8 to stop rotating, the lifting motor rotates, the buffer device 6 is lifted for a certain distance through the pull rope 5 and stops rotating, the signal is transmitted to the automatic weighing machine 2, the automatic weighing machine 2 discharges the next batch of weighed catalyst, and the next round of catalyst filling is started.
The lift motor operates to wind the pull cord 5 up a length associated with the catalyst. The general supply side expects that the distance less than or equal to 1m of catalyst unobstructed free fall to the damage appears in order to avoid the catalyst, the utility model discloses every batch of catalyst of automatic weighing machine 2 of selection is at 1~5kg, within range, preferred 2~3kg within range, can calculate out the height of unit mass catalyst in the boiler tube according to catalyst bulk density and boiler tube internal diameter, and lift motor is at every turn with the length of 5 upwards curls of stay cord 5 only need than the height of calculation department 5~10cm more, can ensure that buffer 6 can not appear and is pushed down the dead phenomenon of card by the catalyst. The utility model discloses an application scope, like hydrocarbon steam reforming hydrogen production or system synthetic gas device, methanol steam reforming hydrogen production device, benzene hydrogenation unit etc. use shell and tube reactor's industrial device.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. A catalyst filling equipment for a tubular reactor is characterized in that: including feed bin (1), a transport cylinder (3), collecting bag (4) and buffer (6), transport cylinder (3) set up the downside in feed bin (1), transport cylinder (3) one end is linked together with the bottom of feed bin (1), the other end is provided with ejection of compact portion, transport cylinder (3) are for following the decurrent slope form gradually of the direction of keeping away from feed bin (1), collecting bag (4) set up in transport cylinder (3) downside, the top and the transport cylinder (3) of collecting bag (4) are linked together, be provided with screen cloth (10) between collecting bag (4) and transport cylinder (3), buffer (6) set up at ejection of compact portion downside.
2. The shell and tube reactor catalyst loading apparatus according to claim 1, characterized in that: the middle lower side of the conveying cylinder (3) is open, a sieving part is formed, the screen (10) is installed on the sieving part, the collecting bag (4) is hermetically connected with the outer wall of the conveying cylinder (3), and the collecting bag is communicated with the conveying cylinder (3) through the sieving part.
3. The shell-and-tube reactor catalyst loading apparatus according to claim 1 or 2, characterized in that: one end of the conveying cylinder (3) far away from the storage bin (1) is bent downwards to form a discharging part with a downward opening.
4. The shell and tube reactor catalyst loading apparatus according to claim 1, characterized in that: an automatic weighing machine (2) is arranged between the stock bin (1) and the conveying cylinder (3).
5. The shell and tube reactor catalyst loading apparatus according to claim 1, characterized in that: the buffer device (6) is connected with a lifting device, and the lifting device is arranged on the upper side of the conveying cylinder (3).
6. The shell and tube reactor catalyst loading apparatus according to claim 5, characterized in that: the lifting device comprises a winch cylinder (7), a pull rope (5) and a lifting motor, wherein the winch cylinder (7) is horizontally arranged on the upper side of the conveying cylinder (3), the upper end of the pull rope (5) is connected with the winch cylinder (7), and the lower end of the pull rope penetrates through the discharging part of the conveying cylinder (3) and then is connected with the buffer device (6).
7. The shell and tube reactor catalyst loading apparatus according to claim 6, characterized in that: the side part of the pull rope (5) is provided with a cam (8), the cam (8) is connected with a cam motor for driving the cam motor to rotate, and the cam (8) is matched with the pull rope (5) to drive the buffer device (6) to shake.
8. The shell and tube reactor catalyst loading apparatus according to claim 1, 5, 6 or 7, characterized in that: the buffer devices (6) are arranged in a plurality from top to bottom at intervals.
9. The shell and tube reactor catalyst loading apparatus according to claim 8, characterized in that: the distance between every two adjacent buffer devices (6) is less than or equal to 1 m.
10. The shell and tube reactor catalyst loading apparatus according to claim 6, characterized in that: buffer (6) include a plurality of springs (9), a plurality of springs (9) encircle stay cord (5) and set up and with stay cord (5) fixed connection, spring (9) along the radial setting of stay cord (5).
CN201921444299.4U 2019-09-02 2019-09-02 Catalyst filling equipment for tube reactor Active CN210972575U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921444299.4U CN210972575U (en) 2019-09-02 2019-09-02 Catalyst filling equipment for tube reactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921444299.4U CN210972575U (en) 2019-09-02 2019-09-02 Catalyst filling equipment for tube reactor

Publications (1)

Publication Number Publication Date
CN210972575U true CN210972575U (en) 2020-07-10

Family

ID=71415263

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921444299.4U Active CN210972575U (en) 2019-09-02 2019-09-02 Catalyst filling equipment for tube reactor

Country Status (1)

Country Link
CN (1) CN210972575U (en)

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