Enamel reaction kettle for preparing catalyst by coprecipitation method

Abstract

The enamel reaction kettle comprises a filter cover arranged at the bottom of a kettle body and an inner container sliding in a mode of being attached to the inner wall of the kettle body, the arc top of the bottom of the filter cover is communicated with a cover opening extending into a discharging section, a shovel edge abutting against the edge of the filter cover is arranged on the circumference of the end of the inner container, and a connecting shaft piece is arranged in the discharging section. According to the enamel reaction kettle for preparing the catalyst through the coprecipitation method, the filter cover is lifted up before sediment is generated, so that the draining cavity section for temporarily storing filtered water is formed between the lower part of the filter cover and the bottom of the kettle body, namely, water in the sediment is lifted up and drained in advance, and the draining work can be carried out before the sediment is generated; the drainage time of sediments in the filter casing is greatly shortened, meanwhile, in the process that the filter casing moving upwards extrudes the shovel edge to deform, the inner space of the inner container is compressed, drainage work in the pressurized state is achieved, the sediment generation rate is further increased, and the catalyst reaction efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of catalyst preparation, in particular to an enamel reaction kettle for preparing catalysts by a co-precipitation method. Background Art

[0002] The co-precipitation method is a commonly used method for preparing catalysts in the chemical industry. It mainly utilizes acid-base neutralization to obtain uniform precipitation of various components, and then filters, washes, dries, calcines and other processes to finally produce a finished catalyst.

[0003] According to the publication (announcement) number: CN106943907B, the publication (announcement) date: 2019-04-16, a device for preparing a copper-based catalyst by a co-precipitation method is disclosed.

[0004] In the prior art including the above-mentioned patents, the reactor required during the production of the catalyst is equipped with a stirring system and a filtering component, which can filter and discharge the precipitate obtained by the reaction, thereby reducing the subsequent processing steps. However, the precipitate is located in the enameled reactor and needs to wait until the raw materials are completely reacted before the water used for proportioning is left to stand and drain. Therefore, the time spent on the step of dealing with the water in the precipitate will still extend the processing cycle of the catalyst. The filtering component in the enameled reactor is generally attached to the inner wall of the bottom of the reactor, and will be disturbed by the accumulation of precipitates during the drainage process, which increases the drainage time and cannot effectively improve the reaction efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide an enamel reactor for preparing catalysts by a co-precipitation method, aiming to solve the above-mentioned problems.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] An enamel reactor for preparing catalysts by a co-precipitation method, comprising a reactor cover provided with a stirring shaft, and a reactor body provided with a discharge section and a discharge valve, and also comprising a filter cover provided at the bottom of the reactor body, and an inner tank sliding against the inner wall of the reactor body, wherein the arc top of the bottom of the filter cover is connected with a cover opening extending into the discharge section, and the end of the inner tank is circumferentially arranged with a shovel edge that abuts against the edge of the filter cover;

[0008] A connecting shaft is provided in the discharging section, and a push-pull member is arranged circumferentially on the side wall of the connecting shaft;

[0009] A plurality of stirring rods are arranged on the side wall of the stirring shaft, and an extension rod is slidably arranged at the end of the stirring rod to move radially away from the axis under the centrifugal force, and a clamp tube is slidably arranged at the end of the stirring shaft to be pulled by the extension rod and move vertically downward, and a tension spring is arranged on the clamp tube;

[0010] The clamp tube is connected to the connecting shaft and rotates synchronously. When the tension spring is reset, the connecting shaft is pulled upward, so that the push-pull member closes the cover opening and cooperates with the filter cover to push the shovel edge to deform, so that a drain cavity section is formed between the filter cover and the bottom of the kettle body.

[0011] Preferably, a screw head is provided at the end of the connecting shaft, and a screw sleeve which is circumferentially arranged and threadedly connected to the screw head is provided at the end of the clamp tube.

[0012] Preferably, a square rod is slidably arranged in the connecting shaft, an elastic member in a force storage state is arranged on the square rod, and a pressure ring located outside the square rod is fixedly installed at the end of the elastic member;

[0013] The discharge valve is provided with a valve shaft, and a valve seat is provided at the end of the valve shaft. The pressure ring abuts against the valve seat and stops, and resets the elastic member so that the connecting shaft member pushes the filter cover upward.

[0014] Preferably, a ring pocket opening located inside the filter housing is formed on the side wall of the connecting shaft, and a displacement cavity connected to the ring pocket opening is formed in the connecting shaft;

[0015] An upper piece that slides in the extrusion cavity is fixedly installed at the end of the square rod, and a lower piece for connecting the elastic member is also fixedly installed on the side wall of the square rod;

[0016] The annular bag opening is deformed under pressure, causing the upper plate to move as a piston in the extrusion cavity, and causing the lower plate to squeeze the elastic member to store force.

[0017] Preferably, a guide block is fixedly mounted on the lower plate, and a circumferentially arranged limiter is slidably provided on the end of the connecting shaft;

[0018] The limiting member is provided with an oblique strip, and the guide block under the movement of the piston is slidably matched with the oblique strip, and the limiting member is radially away from the axis to unlock the pressure ring.

[0019] Preferably, the limiting member is further provided with a horizontal bar, and the horizontal bar is provided with an inclined surface that slidably cooperates with the reset lower pressure ring.

[0020] Preferably, a spacer for sliding the limiting member is provided at the end of the connecting shaft, and a spacer for interfering with the pressing ring is provided at the end of the spacer.

[0021] Preferably, the connecting shaft is also provided with a plug cavity for the lower sheet to slide, and the partition frame is provided with an exhaust hole for the port obliquely discharging section.

[0022] Preferably, a through hole is opened at the end of the clamp tube, and an inner hole is also opened in the stirring shaft. In the reverse thrust state, the clamp tube slides into the inner hole, so that the compressed air in the inner hole is injected into the clamp tube, and the screw sleeve is opened to decouple the screw head.

[0023] Preferably, when returning to the downward position, the inner tank moves close to the filter cover and causes the shovel edge to bend against the inner wall of the filter cover.

[0024] In the above technical scheme, the present invention provides an enameled reactor for preparing catalysts by a co-precipitation method, which has the following beneficial effects: the clamp tube is moved downward and extended through a high-speed rotating stirring rod, and is used to dock with a connecting shaft, and at the same time, the tension spring gradually recovers its deformation and pulls the connecting shaft to drive the filter cover to lift up, so that a drainage chamber section for temporarily storing filtered water is formed between the bottom of the filter cover and the bottom of the reactor body, that is, the water in the sediment is lifted up and drained out in advance, and the discharge valve is opened at the same time to drain the water, and the drainage work can be carried out before waiting for the sediment to be produced, which greatly shortens the drainage time of the sediment in the filter cover and improves the catalyst processing efficiency. At the same time, the upward moving filter cover squeezes the shovel edge and deforms, so that the internal space of the inner tank is compressed, so that the pressure in the stirring space is increased and acts on the sediment and filtered water, so as to realize the drainage work under the pressurized state, further enhance the sediment production rate, and enhance the catalyst reaction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0026] Figure 1 A schematic diagram of the assembly structure of a reactor and a discharge valve provided in an embodiment of the present invention;

[0027] Figure 2 A schematic front cross-sectional view of a reactor and a discharge valve provided in an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of a right side perspective of a partial cross-section of a reactor and a discharge valve provided in an embodiment of the present invention;

[0029] Figure 4 A front cross-sectional schematic diagram of a portion of a stirring shaft, a filter cover, and a connecting shaft provided in an embodiment of the present invention;

[0030] Figure 5 A schematic diagram of a right side perspective of a cross section of a portion of a stirring shaft, a filter cover, and a connecting shaft member provided in an embodiment of the present invention;

[0031] Figure 6 for Figure 5 A magnified schematic diagram of point A;

[0032] Figure 7 A schematic diagram of an exploded upward view of a square rod and components and limit members thereon provided in an embodiment of the present invention.

[0033] Description of reference numerals:

[0034] 1. kettle body; 11. discharge section; 12. rack; 2. kettle cover; 21. hanging column; 3. stirring shaft; 31. stirring rod; 32. rod hole; 321. inner hole; 4. discharge valve; 41. valve shaft; 42. valve seat; 5. filter cover; 50. cover opening; 51. slurry chamber section; 6. liner; 61. shovel edge; 7. connecting shaft; 70. push-pull member; 71. screw head; 72. ring capsule opening; 72 1. Diversion hole; 73. Extrusion cavity; 74. Plug cavity; 741. Plug mouth; 75. Partition frame; 751. Spacer; 752. Exhaust hole; 8. Extension rod; 81. Pull rope; 82. Clamp tube; 821. Screw sleeve; 9. Square rod; 91. Upper piece; 92. Lower piece; 921. Guide block; 93. Elastic part; 931. Pressing ring; 94. Limiting part; 941. Oblique strip; 942. Horizontal strip. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0036] like Figure 1-7 As shown, an enamel reactor for preparing catalyst by co-precipitation method comprises a reactor cover 2 provided with a stirring shaft 3, and a reactor body 1 provided with a discharge section 11 and a discharge valve 4, and further comprises a filter cover 5 provided at the bottom of the reactor body 1, and an inner tank 6 slidingly attached to the inner wall of the reactor body 1, wherein the arc top at the bottom of the filter cover 5 is connected with a cover opening 50 extending into the discharge section 11, and a shovel edge 61 is arranged circumferentially at the end of the inner tank 6 to abut against the edge of the filter cover 5;

[0037] A connecting shaft 7 is provided in the discharge section 11, and a push-pull member 70 is arranged circumferentially on the side wall of the connecting shaft 7;

[0038] A plurality of stirring rods 31 are arranged on the side wall of the stirring shaft 3, and an extension rod 8 is slidably arranged at the end of the stirring rod 31 to move radially away from the axis under the centrifugal force, and a clamp tube 82 is slidably arranged at the end of the stirring shaft 3 to be pulled by the extension rod 8 and move vertically downward, and a tension spring is arranged on the clamp tube 82;

[0039] The clamp tube 82 is connected to the connecting shaft 7 and rotates synchronously. When the tension spring is reset, the connecting shaft 7 is pulled upward, so that the push-pull member 70 presses against the cover opening 50 to close, and cooperates with the filter cover 5 to push the shovel edge 61 to deform, so that a leaching cavity section 51 is formed between the filter cover 5 and the bottom of the kettle body 1.

[0040] Specifically, a driving motor for driving the stirring shaft 3 to rotate is installed on the kettle cover 2, and a plurality of feed ports are arranged on the kettle cover 2. The discharge section 11 is located at the axis center of the bottom of the kettle body 1, and the discharge section 11 is connected to the discharge valve 4. The stirring rod 31 on the stirring shaft 3 has two types: a barbed shape and a horizontal shape, which are both prior arts and will not be elaborated here.

[0041] Furthermore, the filter cover 5 has the function of filtering the proportioned water and retaining the sediment. The material and usage are existing technologies and will not be elaborated here. A plurality of sliders that slide on the inner wall of the kettle body 1 are fixedly installed on the edge of the filter cover 5, and a depression for the sliders is opened on the inner wall of the kettle body 1, which can enable the filter cover 5 to move vertically stably. At the same time, the sliders on the filter cover 5 are also equipped with damping, so that the filter cover 5 can maintain a slow speed after it is reset and moved down until the sediment on the filter cover 5 is completely blown out of the discharge section 11.

[0042] Furthermore, the cover opening 50 is composed of elastic sheets arranged in a circle, and the cover opening 50 is inverted as a whole, so that the sediment can be discharged from the filter cover 5, and a rack 12 for the movement of the connecting shaft 7 is fixedly installed in the discharge section 11 (upper and lower limit protrusions are set on the side wall of the connecting shaft 7 to meet the rotation and vertical sliding of the connecting shaft 7), and the upper end position of the connecting shaft 7 in the default state fits the lower end of the cover opening 50, that is, there will be no leakage problem due to the cover opening 50 when the filter cover 5 is performing filtering work.

[0043] Furthermore, the push-pull member 70 has an arc-shaped cross-section, with the raised portion of the arc facing the axis of the connecting shaft 7, and a vertically arranged bending portion is fixedly installed at the end of the arc, and the bending portion that fits into the inner wall of the discharge section 11 can provide limiting and support for the vertical movement of the connecting shaft 7, thereby increasing the stability of the connecting shaft 7 during the docking process.

[0044] Furthermore, a plurality of hanging posts 21 are fixedly installed on the inner wall of the kettle cover 2, and an annular curling edge (the end portion is rounded and slides against the inner wall of the kettle body 1 to ensure sealing) through which the hanging posts 21 slide is fixedly installed on the upper end of the inner tank 6, and a spring is also fixedly installed between the hanging posts 21 and the annular curling edge. When the inner tank 6 is squeezed and moved upward, the spring is compressed and deformed, and the elastic coefficient of the spring is smaller than the elastic coefficient of the tension spring on the clamp tube 82, so that the tension spring becomes the main power for pulling the clamp tube 82.

[0045] Furthermore, the extension rod 8 slides at the end of the hook-shaped stirring rod 31, and a pull rope 81 (corrosion-resistant steel wire rope, prior art, not described here) is fixedly installed between the extension rod 8 and the clamp tube 82. The pull rope 81 slides through the hole on the stirring rod 31 and the hole on the side wall of the stirring shaft 3.

[0046] Furthermore, a rod hole 32 is provided at the end of the stirring shaft 3 for the clamp tube 82 to slide, and the pull rope 81 moves in the rod hole 32. At the same time, multiple pull ropes 81 can provide a limit for the vertical sliding of the clamp tube 82. Combined with the connection of the tension spring, the clamp tube 82 can move stably vertically.

[0047] The raw materials entering the kettle body 1 are stirred in the space formed by the filter cover 5 and the inner tank 6, so that the reaction process will not cause serious damage to the inner wall of the kettle body 1. In the process of stirring the raw materials by the high-speed rotating stirring rod 31, the centrifugal force causes the extension rod 8 to extend from the end of the stirring rod 31, increasing the stirring area of ​​the raw materials, and also causing the clamp tube 82 to move down and extend out of the rod hole 32, and be used to dock with the connecting shaft 7, so that the stirring shaft 3 drives the connecting shaft 7 to rotate during the process of switching from high speed to low speed, and at the same time, the tension spring gradually recovers its deformation and pulls the clamp tube 82 upward, so that the bent parts on the multiple push-pull members 70 can resist the inner wall of the discharge section 11 and spirally move upward to scrape, so as to achieve the purpose of unblocking and cleaning the discharge section 11, and when the stirring of the raw materials is completed and before waiting for the sediment to be produced, the connected shaft 7 that is pulled and moved upward causes the push-pull member 70 to separate from the discharge section 11 until it resists the outer side of the cover mouth 50, making the arc-shaped push-pull The component 70 pushes the cover opening 50 to deform and close, which can push the residual sediment in the cover opening 50 into the filter cover 5, and also fills the gap between the elastic sheets of the cover opening 50 to prevent the sediment from being discharged prematurely and leaking. The upwardly moving connecting shaft 7 can drive the filter cover 5 to lift up, so that a drain chamber section 51 for temporarily storing filtered water is formed between the bottom of the filter cover 5 and the bottom of the kettle body 1, that is, the water in the sediment is lifted up and drained out in advance, and the discharge valve 4 is opened at the same time to drain the water, and the drainage work can be carried out before waiting for the sediment to be produced, which greatly shortens the drainage time of the sediment in the filter cover 5 and improves the catalyst processing efficiency. At the same time, the upwardly moving filter cover 5 squeezes the shovel edge 61 and deforms, so that the internal space of the inner tank 6 is compressed, so that the pressure in the stirring space is increased and acts on the sediment and filtered water, so as to realize the drainage work under the pressurized state, further enhance the sediment production rate, and enhance the catalyst reaction efficiency.

[0048] As an embodiment further provided by the present invention, a screw head 71 is provided at the end of the connecting shaft 7 , and a screw sleeve 821 which is circumferentially arranged and threadedly connected to the screw head 71 is provided at the end of the clamp tube 82 .

[0049] Specifically, the upper end of the connecting shaft 7 is tapered, and the screw head 71 is at the end of the tapered position, so that the connecting shaft 7 that is pulled upward can use the arc angle of the tapered position to clear the sediment in the hood mouth 50, thereby preventing the sediment from accumulating too thickly and affecting the discharge of the hood mouth 50.

[0050] Furthermore, the screw sleeve 821 is specifically a circumferentially arranged arc-shaped elastic sheet, and a protrusion or a ball is installed on the inner side of the arc-shaped elastic sheet, so that the entire screw sleeve 821 can be connected with the thread on the screw head 71, making the connection between the two smoother.

[0051] When the stirring shaft 3 switches from high-speed rotation to low-speed, the screw sleeve 821 that moves down to the end position begins to be threadedly connected with the screw head 71, and when the stirring shaft 3 quickly switches from low speed to stationary, the rotation state can enable the clamp tube 82 to drive the connecting shaft 7 to rotate, so that the push-pull member 70 can perform cleaning and unblocking work. At the same time, the screw sleeve 821 and the screw head 71 are completely threadedly engaged, so that the two are stably connected, and the connecting shaft 7 is driven upward under the action of the tension spring to restore the deformation, thereby completing the lifting and drainage work of the filter cover 5 without the need for external drive, and at the same time, it can also achieve the purpose of cleaning the residual sediment in the discharge section 11 and the recovery cover mouth 50.

[0052] As another embodiment further provided by the present invention, a square rod 9 is slidably arranged in the connecting shaft 7, an elastic member 93 in a force storage state is arranged on the square rod 9, and a pressure ring 931 located outside the square rod 9 is fixedly installed at the end of the elastic member 93;

[0053] The discharge valve 4 is provided with a valve shaft 41 , and a valve seat 42 is provided at the end of the valve shaft 41 . The pressure ring 931 abuts against the valve seat 42 and stops, and resets the elastic member 93 so that the connecting shaft member 7 pushes the filter cover 5 upward.

[0054] Specifically, the square rod 9 is a square rod body, so that the pressure ring 931 can stably maintain vertical movement, and the elastic member 93 is specifically a spring, so that the spring under accumulated force can more easily push the pressure ring 931 to move.

[0055] Furthermore, the valve shaft 41 is an extended rod of the valve core in the discharge valve 4, and the valve seat 42 is a circumferentially arranged rod, so that the columnar gap between the rods can be inserted into the lower end of the square rod 9, that is, when the connecting shaft 7 is in the default state, the lower end of the square rod 9 used for reverse thrust drive can be received in the valve seat 42, and the lower end of the valve seat 42 has a conical slope to avoid problems such as clogging of the valve seat 42 during sediment discharge; when the connecting shaft 7 moves up with the tension spring, the valve core needs to be rotated to move the valve shaft 41 up to a predetermined position, so that the valve seat 42 can make up for the gap spacing caused by the upward movement of the connecting shaft 7, and ensure that the pressure ring 931 can dock with the valve seat 42 after moving down to achieve reverse thrust (similar to turning a ballpoint pen upside down, so that when the end of the pen accumulates force and then releases it to hit a plane, it can reverse push the ballpoint pen up).

[0056] The kettle body 1 is pressurized by injecting gas through the external pipeline on the kettle cover 2, so that the pressure acts on the raw liquid in the filter cover 5, the purpose is to accelerate the separation efficiency of the sediment and the proportioning water, and when the filter cover 5 is under pressure, the filter cover 5 has a tendency to move downward, and the tension spring on the clamp tube 82 is responsible for pulling the filter cover 5 up, so that the filter cover 5 under pressure is no longer inflated when it reaches the equilibrium state, until the filter cover 5 stops at the equilibrium position, and the elastic member 93 in the force storage state transmits the force downward to the pressure ring 931, so that the pressure ring 931 is limited when it contacts the valve seat 42, so that the force released by the elastic member 93 can only be transmitted upward, so that the reverse thrust causes the entire connecting shaft 7 to move up again, so that the filter cover 5 is pushed and squeezes the internal space of the liner 6 again, so that the additional thrust can pressurize the raw liquid in the filter cover 5 for the second time, even if the pipeline pressurizes the kettle body 1 again, the filter cover 5 that moves up again still provides assistance for the separation of the sediment, thereby increasing the separation efficiency of the sediment in the filter cover 5.

[0057] As another embodiment further provided by the present invention, a ring-shaped opening 72 located inside the filter cover 5 is formed on the side wall of the connecting shaft 7, and a displacement cavity 73 connected to the ring-shaped opening 72 is also formed in the connecting shaft 7;

[0058] An upper piece 91 that slides in the extrusion cavity 73 is fixedly installed at the end of the square rod 9, and a lower piece 92 for connecting the elastic member 93 is also fixedly installed on the side wall of the square rod 9;

[0059] The annular bag opening 72 is deformed under pressure, causing the upper plate 91 to move as a piston in the extrusion cavity 73 , and causing the lower plate 92 to squeeze the elastic member 93 to store force.

[0060] Specifically, the annular bag opening 72 is an annular depression opened on the side wall of the connecting shaft 7, and an annular corrosion-resistant rubber bag is fixedly installed on the recessed port. In the default state, the connecting shaft 7 makes the annular bag opening 72 located below the cover opening 50 so that the annular bag opening 72 is not interfered with.

[0061] Furthermore, the connecting shaft 7 is provided with guide holes 721 arranged in a circumference and used to connect the ring bag opening 72 and the displacement cavity 73. The side walls of the upper piece 91 and the lower piece 92 are fixedly sleeved with rubber rings for providing sealing to ensure the gas transmission effect of the piston movement of the two.

[0062] Furthermore, a plug cavity 74 is provided in the connecting shaft 7 for the piston movement of the lower piece 92, and a plug opening 741 is also provided on the side wall of the connecting shaft 7, which is arranged circumferentially and connected to the upper half of the plug cavity 74 (that is, the upper area of ​​the plug cavity 74 divided by the lower piece 92). In the default state, the upper surface of the lower piece 92 is flush with the lower end of the plug opening 741, so that the lower piece 92 after resetting can push out the residual sediment that has entered the upper half of the plug cavity 74, thereby reducing the waste of sediment and the interference with the piston movement.

[0063] After the connecting shaft 7 is pulled up, the annular bag opening 72 enters the inner side of the filter cover 5. Since the increased pressure in the kettle body 1 not only acts on the sediment, but also acts on the annular bag opening 72, the rubber bag on its surface is deformed, and the internal air is squeezed and enters the displacement cavity 73 through the guide hole 721, so that the upper piece 91 performs piston movement to transfer the thrust to the lower piece 92, so that the lower piece 92 puts pressure on the elastic member 93 to deform and store force, so as to achieve the effect that the elastic member 93 stores force due to the increased internal pressure of the kettle body 1, so that the connecting shaft 7 is acted on by the reverse thrust and moves up again, so that the effect of the connecting shaft 7 driving the filter cover 5 is richer.

[0064] As another embodiment further provided by the present invention, a guide block 921 is fixedly mounted on the lower plate 92, and a circumferentially arranged stopper 94 is slidably provided on the end of the connecting shaft member 7;

[0065] The limiting member 94 is provided with an inclined strip 941 , and the guide block 921 under the movement of the piston is slidably matched with the inclined strip 941 , and the limiting member 94 is radially away from the axis to unlock the pressing ring 931 .

[0066] Specifically, a spring and a slider are fixedly mounted on the limiting member 94 so that the spring is compressed during the sliding process between the guide block 921 and the inclined bar 941 , and the slider is used to provide a limiting guide for the radial movement of the limiting member 94 .

[0067] The lower plate 92, which is driven downward by the upper plate 91, approaches the limit member 94, so that the multiple guide blocks 921 abut against the inclined bars 941 and slide, and the inclined bars 941 are used to convert the vertical downward force into a horizontal force, so that the circumferentially arranged limit members 94 are opened away from each other, so as to open the gap through which the pressure ring 931 passes, so that the pressure ring 931 abuts against the valve seat 42, so as to complete the force stored in the elastic member 93 to act on the connecting shaft 7 for reverse push, so that the method of transmitting force and the method of releasing force are simpler.

[0068] As another embodiment further provided by the present invention, a horizontal bar 942 is further provided on the limiting member 94 , and an inclined surface that slides with the reset lower pressure ring 931 is provided on the horizontal bar 942 .

[0069] Specifically, the horizontal bar 942 is installed at the lower end of the limiting member 94 , and the inclined surface is opened on the lower surface of the horizontal bar 942 , while the upper surface of the horizontal bar 942 is a horizontal surface. In the default state, the elastic member 93 makes the pressure ring 931 contact the upper surface of the horizontal bar 942 .

[0070] During the process of storing force by the elastic member 93, the pressure ring 931 is kept in contact with the upper surface of the horizontal bar 942, and after the limit member 94 moves radially, the horizontal bars 942 are moved away from each other to unlock the pressure ring 931 under the stored force, so as to suddenly release the force stored in the elastic member 93 so that this instantaneous force can directly act on the connecting shaft 7, thereby avoiding the situation where the movement resistance of the filter cover 5 increases due to the slow release speed, and then the pressure cannot be applied again, so as to ensure the stable secondary pressurization. After the elastic member 93 releases the stored force, the upward moving connecting shaft 7 will inevitably carry the pressure ring 931 away from the valve seat 42, and the elastic member 93 begins to retract and shake, so that the pressure ring 931 enters the blocking space of the limit member 94 again. At the same time, as the pressure ring 931 slides on the inclined surface at the lower end of the horizontal bar 942, the pressure ring 931 pushes the circumferentially arranged horizontal bars 942 away from each other again until the pressure ring 931 returns to the upper surface of the horizontal bar 942, that is, the pressure ring 931 returns to the default position, ensuring that the elastic member 93 can cope with the pressurization required for a single processing in the reactor, and the elastic member 93 that enters the default position needs to transmit the force to the upper plate 91 in the reverse direction, and the ring bag mouth 72 cannot expand rapidly due to the increased internal pressure of the filter cover 5. Therefore, the mutually offsetting forces are transmitted to the elastic member 93, which can prevent the elastic member 93 from shaking repeatedly, thereby achieving the purpose of quickly eliminating the vibration of the elastic member 93 and avoiding the shaking from interfering with the movement of the connecting shaft 7.

[0071] As another embodiment further provided by the present invention, a spacer 75 for the limiting member 94 to slide is provided at the end of the connecting shaft 7 , and a spacer 751 that contacts and cooperates with the pressing ring 931 is provided at the end of the spacer 75 .

[0072] Specifically, the spacer 75 is located at the lower end of the connecting shaft 7, and the lower end of the connecting shaft 7 also has an extended ring tube, the purpose of which is to use the ring tube to provide a support range for the rack 12 to ensure the normal vertical movement of the connecting shaft 7.

[0073] Furthermore, the strip-shaped gap between the partitions 75 is the space for the radial movement of the limit member 94, and the slider on the limit member 94 slides in the slideway opened on the side wall of the strip-shaped gap, and the spacer 751 is an elastic sheet near the axis of the partition 75, so the annular area formed by the spacer 751 is the squeezed contact position when the pressure ring 931 passes through.

[0074] The spacer 751 set at the end of the spacer frame 75 can make the pressure ring 931 bend and deform when passing through, so as to facilitate the passage of the pressure ring 931. The spacers 751 in the default state are combined with each other and then sealed with the circumferentially arranged horizontal bars 942, so as to improve the sealing effect in the plug cavity 74, reduce the entry of sediment in the lower row, and ensure the smooth operation and safety of the components in the connecting shaft 7.

[0075] As another embodiment further provided by the present invention, a plug cavity 74 is further provided in the connecting shaft 7 for the lower plate 92 to slide, and an exhaust hole 752 with a port obliquely facing the discharge section 11 is provided on the partition frame 75.

[0076] Specifically, the exhaust holes 752 are circumferentially arranged on the side wall of the connecting shaft 7 , and the oblique exhaust holes 752 are used to connect to the plug cavity 74 .

[0077] During the downward movement of the lower plate 92, the air inside the plug cavity 74 is compressed, and the airflow can only be discharged from multiple exhaust holes 752. Therefore, the airflow ejected quickly and continuously from the exhaust holes 752 can directly act on the port of the discharge section 11 (after the connecting shaft 7 moves upward). The purpose is to use the compressed airflow in the plug cavity 74 to blow and clean the sediment discharge position, reduce the blockage problem of the discharge section 11, and at the same time reduce the gathering problem of the filtered water around the port of the discharge section 11, thereby accelerating the discharge of the filtered water through the discharge valve 4.

[0078] As another embodiment further provided by the present invention, a through hole is opened at the end of the clamp tube 82, and an inner hole 321 is also opened in the stirring shaft 3. In the reverse thrust state, the clamp tube 82 slides into the inner hole 321, so that the compressed air in the inner hole 321 is injected into the clamp tube 82, and the screw sleeve 821 is opened to decouple the screw head 71.

[0079] Specifically, a rubber diaphragm is fixedly installed in the through hole at the upper end of the clamp tube 82 so that the pressure in the inner hole 321 increases and impacts the rubber diaphragm to open. A rubber ring is fixedly sleeved on the side wall of the clamp tube 82 to provide a sealing effect when the clamp tube 82 slides in the inner hole 321, thereby ensuring that the pressurized airflow enters the interior of the clamp tube 82.

[0080] Furthermore, the cross-section of the inner hole 321 is trapezoidal, so that the rubber ring on the side wall of the clamp tube 82 slides into the inner hole 321 and begins to deform and seal, while also allowing some residual filtered water to enter the inner hole 321 to enhance the pressure change in the inner hole 321.

[0081] Furthermore, the arc-shaped elastic sheets used in the screw sleeve 821 are connected by a corrosion-resistant rubber film. On the one hand, the rubber film can contact the threads on the screw head 71 to increase friction and prevent the connecting shaft 7 from slipping. On the other hand, the interior of the clamp tube 82 can remain sealed, effectively reducing the invasion of sediment into the internal space of the clamp tube 82, and the length of the arc-shaped elastic sheet is greater than the length of the fully threaded connection of the screw head 71, so that the excess part has sufficient area to be compressed.

[0082] After the connecting shaft 7 is driven upward by the reverse thrust of the elastic member 93, the upper end of the clamp tube 82 before moving up to the end position begins to slide into the inner hole 321, so that the clamp tube 82 applies pressure to the inside of the inner hole 321 and prompts the rubber diaphragm to open, thereby completely applying pressure to the inside of the clamp tube 82 until the pressure is transmitted to the screw sleeve 821, which is used to make the arc-shaped elastic sheets arranged in the circle move away from each other and open, that is, corresponding to the protrusion or ball on the screw sleeve 821 disengaging from the screw head 71, so that the connecting shaft 7 loses traction and docking and moves downward to reset, and the connecting shaft 7 moves downward preferentially over the filter cover 5, prompting the upper end of the connecting shaft 7 to be pulled out of the cover mouth 50, the purpose is to facilitate the cover mouth 50 to carry out the unloading work, and the screw sleeve 821 that suddenly detaches quickly ejects the pressure inside it, and acts on the cover mouth 50 that has not yet moved downward, so as to blow and dredge the unloading of the cover mouth 50 in advance, so that the cover mouth 50 can more easily discharge the filtered sediment into the discharge section 11.

[0083] As another embodiment further provided by the present invention, the inner liner 6 is restored to the downward state and moves close to the filter cover 5, and the shovel edge 61 is bent against the inner wall of the filter cover 5.

[0084] Specifically, a corrosion-resistant rubber membrane is fixedly installed between adjacent shovel edges 61 , so that when the ends of the shovel edges 61 are brought close to each other, the rubber membrane can be deformed and wrinkled, thereby ensuring the sealing effect of the pressurized space between the inner liner 6 and the filter cover 5 .

[0085] The filter cover 5, which has lost its upward lifting force, slowly moves downward under the action of damping, but the inner tank 6 is reset under the action of the spring reset on the hanging column 21 at this time. Therefore, the reset rate of the inner tank 6 will be faster than the reset rate of the filter cover 5, so that the shovel edge 61 that originally abutted against the edge of the filter cover 5 continues to move downward and bend and deform, and the lower end of the shovel edge 61 is slowly slid against the inner wall of the filter cover 5, so that the multiple shovel edges 61 close to each other can play the purpose of shoveling in and pushing the sediment, so that the sediment is pushed to the lower discharge at the cover mouth 50, which is used to speed up the sediment discharge efficiency, and at the same time cooperate with the pipeline auxiliary blowing on the kettle cover 2 to quickly send the sediment on the filter cover 5 into the discharge section 11 and discharge it through the discharge valve 4, thereby completing the processing of the entire sediment and shortening the catalyst production time. When the filter cover 5 reaches the bottom of the kettle body 1 after resetting, the inner tank 6 that returns to the default position again abuts the end of the shovel edge 61 against the edge of the filter cover 5, waiting for the next sediment processing.

[0086] Working principle: When the stirring rod 31 rotates at a high speed to stir the raw materials, the centrifugal force causes the extension rod 8 to extend from the end of the stirring rod 31, and under the action of the pull rope 81, the clamp tube 82 moves down and extends out of the rod hole 32, and is used to dock with the connecting shaft 7, so that the stirring shaft 3 drives the connecting shaft 7 to rotate during the process of switching from high speed to low speed, and at the same time, the tension spring gradually recovers its deformation and pulls the clamp tube 82 to move up, so that the bent parts on the multiple push-pull members 70 can resist the inner wall of the discharge section 11 and move up in a spiral to scrape, so as to achieve dredging. The purpose of discharging section 11 is to manage the material discharging section 11. When the stirring of the raw materials is completed and before the sediment is generated, the connecting shaft 7 that is pulled and moved upward causes the push-pull member 70 to separate from the material discharging section 11 until it contacts the outer side of the cover opening 50, so that the arc-shaped push-pull member 70 pushes the cover opening 50 to deform and close together, and can push the residual sediment in the cover opening 50 into the filter cover 5, and at the same time, the gap between the elastic sheets of the cover opening 50 is filled, and the upward-moving connecting shaft 7 can drive the filter cover 5 to lift up, so that a space for temporarily storing the filtered water is formed between the bottom of the filter cover 5 and the bottom of the kettle body 1. The drain chamber section 51, that is, the water in the sediment is lifted and drained out in advance, and the discharge valve 4 is opened to drain the water. The drainage work can be carried out before waiting for the sediment to be produced, which greatly shortens the drainage time of the sediment in the filter cover 5. At the same time, the upwardly moved filter cover 5 squeezes the shovel edge 61 and deforms, so that the internal space of the inner tank 6 is compressed, so that the pressure in the stirring space is increased and acts on the sediment and the filtered water, so as to realize the drainage work under the pressurized state, and the external pipe on the kettle cover 2 injects gas into the kettle body 1 to pressurize it. The force acts on the original liquid in the filter cover 5, the purpose of which is to accelerate the separation efficiency of the sediment and the proportioning water, and the elastic member 93 in the force storage state transmits the force downward to the pressure ring 931, so that the pressure ring 931 is restricted when it contacts the valve seat 42. Therefore, the force released by the elastic member 93 can only be transmitted upward, so that the reverse thrust causes the entire connecting shaft 7 to move up again, so that the filter cover 5 is pushed and squeezes the internal space of the inner tank 6 again, so that the additional thrust can be used to pressurize the original liquid in the filter cover 5 for the second time, thereby increasing the separation efficiency of the sediment in the filter cover 5.

[0087] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An enamel reactor for preparing a catalyst by a coprecipitation method, comprising a reactor cover (2) provided with a stirring shaft (3), and a reactor body (1) provided with a discharge section (11) and a discharge valve (4), characterized in that: It also comprises a filter cover (5) arranged at the bottom of the kettle body (1), and an inner container (6) slidingly attached to the inner wall of the kettle body (1), wherein the top arc of the bottom of the filter cover (5) is connected to a cover opening (50) extending into the discharge section (11), and a shovel edge (61) is arranged circumferentially at the end of the inner container (6) to abut against the edge of the filter cover (5); The discharging section (11) is provided with a connecting shaft (7), and a push-pull member (70) is arranged circumferentially on the side wall of the connecting shaft (7); A plurality of stirring rods (31) are arranged on the side wall of the stirring shaft (3), and an extension rod (8) is slidably arranged at the end of the stirring rod (31) and moves radially away from the axis under centrifugal force, and a clamp tube (82) is slidably arranged at the end of the stirring shaft (3) and is pulled by the extension rod (8) to move vertically downward, and a tension spring is arranged on the clamp tube (82); The clamp tube (82) is connected to the connecting shaft (7) and rotates synchronously. When the tension spring is reset, the connecting shaft (7) is pulled upward, so that the push-pull member (70) abuts against the cover opening (50) to close, and cooperates with the filter cover (5) to push the shovel edge (61) to deform, so that a leaching cavity section (51) is formed between the filter cover (5) and the bottom of the kettle body (1).

2. The enamel reactor for preparing catalyst by coprecipitation method according to claim 1, characterized in that: The end of the connecting shaft (7) is provided with a screw head (71), and the end of the clamp tube (82) is provided with a screw sleeve (821) which is arranged circumferentially and threadedly connected to the screw head (71).

3. The enamel reactor for preparing catalyst by coprecipitation method according to claim 2, characterized in that: A square rod (9) is slidably arranged in the connecting shaft (7), an elastic member (93) in a force storage state is arranged on the square rod (9), and a pressure ring (931) located outside the square rod (9) is fixedly installed at the end of the elastic member (93); The discharge valve (4) is provided with a valve shaft (41), and a valve seat (42) is provided at the end of the valve shaft (41). The pressure ring (931) abuts against the valve seat (42) and stops, and resets the elastic member (93) so that the connecting shaft member (7) pushes the filter cover (5) upward.

4. The enamel reactor for preparing catalyst by coprecipitation method according to claim 3, characterized in that: The side wall of the connecting shaft (7) is provided with an annular opening (72) located inside the filter cover (5), and the connecting shaft (7) is also provided with an extrusion cavity (73) connected to the annular opening (72); An upper piece (91) that slides in the extrusion cavity (73) is fixedly mounted on the end of the square rod (9), and a lower piece (92) that is used to connect to an elastic member (93) is also fixedly mounted on the side wall of the square rod (9); The annular bag opening (72) is deformed under pressure, causing the upper plate (91) to move as a piston in the extrusion cavity (73), and causing the lower plate (92) to squeeze the elastic member (93) to store force.

5. The enamel reactor for preparing catalyst by coprecipitation method according to claim 4, characterized in that: A guide block (921) is fixedly mounted on the lower plate (92), and a circumferentially arranged stopper (94) is slidably disposed on the end of the connecting shaft (7); The limiting member (94) is provided with an inclined strip (941), and the guide block (921) under the movement of the piston is slidably matched with the inclined strip (941), and the limiting member (94) is radially away from the axis to unlock the pressure ring (931).

6. The enamel reactor for preparing catalyst by coprecipitation method according to claim 5, characterized in that: The limiting member (94) is also provided with a horizontal bar (942), and the horizontal bar (942) is provided with an inclined surface that is slidably matched with the reset lower pressure ring (931).

7. The enamel reactor for preparing catalyst by coprecipitation method according to claim 5, characterized in that: The end of the connecting shaft (7) is provided with a spacer (75) for the limiting member (94) to slide, and the end of the spacer (75) is provided with a spacer (751) that contacts and cooperates with the pressure ring (931).

8. The enamel reactor for preparing catalyst by coprecipitation method according to claim 7, characterized in that: The connecting shaft (7) is also provided with a plug cavity (74) for the lower plate (92) to slide, and the partition frame (75) is provided with an exhaust hole (752) for the oblique discharge section (11) at the port.

9. The enamel reactor for preparing catalyst by coprecipitation method according to claim 8, characterized in that: A through hole is formed at the end of the clamp tube (82), and an inner hole (321) is also formed in the stirring shaft (3). In a reverse thrust state, the clamp tube (82) slides into the inner hole (321), so that compressed air in the inner hole (321) is injected into the clamp tube (82), and the screw sleeve (821) is opened to decouple the screw head (71).

10. The enamel reactor for preparing catalyst by coprecipitation method according to claim 9, characterized in that: In the reset downward state, the inner container (6) moves close to the filter cover (5), and the shovel edge (61) is bent against the inner wall of the filter cover (5).

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