Acidification device for preparing activated carbon

Abstract

The present invention discloses an acidification device for the preparation of activated carbon, which relates to the technical field of the preparation of activated carbon, and comprises a placing cylinder, wherein a collecting cylinder for collecting impurities is fixedly connected to the lower part of the placing cylinder, and the collecting cylinder is connected to an acidification cylinder for acidification reaction of activated carbon by a disassembly method, and a turbine pump is installed in the collecting cylinder. The present invention adopts a method in which the acidification cylinder rotates itself to discharge the precipitated impurities, and cooperates with a turbine pump to promote the circulation of acid liquid. Compared with the direct mechanical stirring method, the granular activated carbon can be treated more gently, which not only improves the efficiency of impurity precipitation, but also reduces the risk of damage to the activated carbon structure, and takes into account both efficient impurity removal and structural protection. In the case of no direct external force stirring, the fluidity between the acid liquid and the activated carbon particles is accelerated by the principle of fluid dynamics, which not only ensures the effect of acidification regeneration, but also maintains the structural morphology of the activated carbon, which is beneficial to its long-term performance and recycling.

Description

Technical Field

[0001] The invention relates to the technical field of activated carbon preparation, and in particular to an acidification device for activated carbon preparation. Background Art

[0002] Activated carbon acidification usually refers to the chemical reaction of activated carbon under specific conditions. Activated carbon will accumulate various organic and inorganic substances during the adsorption process, which will block its microporous structure and reduce its adsorption capacity. Acidification can dissolve and remove these impurities blocked in the pores and restore its adsorption performance.

[0003] During the acidification process, stirring and other methods are generally used to accelerate the precipitation of impurities. However, strong stirring will generate mechanical force, which may cause some fragile or irregular activated carbon particles to break, especially those with smaller particles or less dense structure, affecting the subsequent adsorption function. However, if stirring is not performed, the precipitation of impurities will be slowed down, affecting the impurity removal efficiency.

[0004] Based on the above situation, the present invention proposes an acidification device for preparing activated carbon. Summary of the invention

[0005] In order to overcome the shortcomings that stirring will destroy the structure of activated carbon and no stirring will slow the precipitation of impurities, the present invention provides an acidification device for preparing activated carbon.

[0006] An acidification device for preparing activated carbon, comprising a placement cylinder, a collecting cylinder for collecting impurities is fixedly connected to the lower part of the placement cylinder, the collecting cylinder is connected to an acidification cylinder for acidification reaction of activated carbon in a detachable manner, the acidification cylinder is provided with a plurality of filter holes for filtering out impurities and acid, a cylinder cover is placed on the top of the placement cylinder, the cylinder cover is provided with a round hole, a motor is placed on the top of the cylinder cover, the output shaft of the motor is plugged into the round hole of the cylinder cover, a plug hole is provided on the side of the acidification cylinder close to the cylinder cover, the motor The output shaft of the machine is snap-fitted with the jack of the acidifying cylinder. A circulation chamber is provided at the bottom of the acidifying cylinder. A water pipe is connected between the inside of the acidifying cylinder and the circulation chamber. The pipe section of the water pipe located in the acidifying cylinder is provided with a plurality of filter holes. The collecting cylinder is provided with an outer chamber and an inner chamber. The inner chamber of the collecting cylinder is connected with the circulation chamber at the bottom of the acidifying cylinder. A plurality of filter holes are provided on the side of the collecting cylinder close to the inner chamber. A turbine pump is installed in the collecting cylinder. A retaining frame is slidably connected to the outer chamber of the collecting cylinder. The retaining frame is provided with discharge grooves evenly distributed in the circumferential direction.

[0007] Preferably, the acidification cylinder is stably placed in the middle of the collecting cylinder by means of a snap-on connection, and when the collecting cylinder is docked with the acidification cylinder, the turbine pump is located at the circulation chamber of the acidification cylinder.

[0008] Preferably, it further comprises an annular array of spoilers, wherein the spoilers are fixedly connected to the inner wall of the placement tube.

[0009] Preferably, the spoilers in the annular array are all inclined in the same direction.

[0010] Preferably, it also includes a filter frame, which is slidably connected to the outer cavity of the collecting cylinder along the up and down directions, and the filter frame is provided with through holes distributed at equal intervals in the circumferential direction. When the filter frame moves to be flush with the top of the collecting cylinder, the through holes are blocked by the collecting cylinder, and the outer cavity of the collecting cylinder is slidably connected to a load-bearing frame along the up and down directions, and the filter frame is slidably connected to the load-bearing frame. A guide filter plate is fixedly connected to one side of the outer cavity of the collecting cylinder close to the inner cavity, and the guide filter plate is slidably connected to the load-bearing frame. The bottom of the collecting cylinder is horizontally slidably connected to a circumferentially distributed guide plate, and the guide plate is provided with an inner oblique groove and an outer oblique groove. The filter frame is slidably connected to the outer oblique groove of the guide plate, and the load-bearing frame is slidably connected to the inner oblique groove of the guide plate.

[0011] Preferably, the weight of the filter frame is greater than the weight of the load-bearing frame.

[0012] Preferably, it further comprises a circumferentially distributed first scraper, which is fixedly connected to the bottom of the acidification cylinder and contacts the side wall of the collecting cylinder close to the filter hole, and is used to scrape off impurities at the filter hole of the collecting cylinder.

[0013] Preferably, the first scraper is provided with a material guide groove for guiding impurities to the load-bearing frame.

[0014] Preferably, it further comprises a circumferentially distributed second scraper, which is fixedly connected to a side of the acidification cylinder close to the first scraper, and the collecting cylinder is provided with a circumferentially distributed feed trough, which is located directly above the through hole.

[0015] Preferably, it also includes a ring-shaped array of fixed rods, which are fixedly connected to the bottom of the collecting tube, and a slide plate is slidably connected between the fixed rods of the ring-shaped array, and the slide plate is fixedly connected to the baffle frame. The bottom of the first scraper is in contact with the top of the baffle frame, and a tension spring is fixedly connected between the slide plate and the collecting tube.

[0016] The beneficial effect is: the present invention adopts the method of rotating the acidification cylinder itself to discharge the precipitated impurities, and cooperates with the turbine pump to promote the circulation of acid liquid. Compared with the direct mechanical stirring method, the granular activated carbon can be treated more gently, which not only improves the efficiency of impurity precipitation, but also reduces the risk of damage to the activated carbon structure, and takes into account both efficient impurity removal and structural protection. Without direct external force stirring, the fluidity between the acid liquid and the activated carbon particles is accelerated by the principle of fluid dynamics, which not only ensures the effect of acidification regeneration, but also maintains the structural morphology of the activated carbon, which is beneficial to its long-term performance and recycling.

[0017] The present invention controls the rotation direction of the acidification cylinder so that the direction in which the liquid is thrown out is opposite to the direction of the spoiler, thereby interrupting the original single-direction flow of the liquid, thereby forming a complex flow field, causing the liquid to sway in a wave-like manner, which is conducive to more complete contact and mixing between the acid and the activated carbon particles and increasing the migration rate of impurities from the inside of the activated carbon.

[0018] The present invention automatically locks the impurities accumulated on the load-bearing frame between the filter frame and the load-bearing frame in the later stage, so as to avoid that when the amount of impurities accumulated increases to be almost full, the impurities are close to the rotating acidification cylinder, which easily drives the settled impurities to flow again and weakens the discharge effect of the impurities.

[0019] The first scraper of the present invention can be used to scrape off impurities on the filter holes of the collection tube to prevent the impurities from blocking the filter holes of the collection tube to avoid affecting the circulation of the acid solution. The guide trough can accurately guide the impurities to the load-bearing frame to prevent the impurities from accumulating on the side close to the guide filter plate. The rotating second scraper can scrape off part of the impurities filtered on the filter frame and make them fall onto the load-bearing frame through the feed trough, which is convenient for centralized collection of impurities.

[0020] When the collecting tube is taken out upward, the slide plate is driven to slide upward along the fixing rod by the tension spring reset, thereby driving the retaining frame to slide upward, achieving the effect of automatically pushing the retaining frame upward, thus achieving the effect of automatically discharging the acid and impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 This is a three-dimensional structural separation diagram of the components such as the placement cylinder, the collection cylinder and the acidification cylinder of the present invention.

[0023] Figure 3 It is a three-dimensional structural schematic diagram of components such as the water pipe, turbine pump and baffle frame of the present invention.

[0024] Figure 4 This is a three-dimensional structural separation diagram of the collecting cylinder, acidifying cylinder and retaining frame of the present invention.

[0025] Figure 5It is a three-dimensional structural schematic diagram of the retaining frame, load-bearing frame, guide plate and other components of the present invention.

[0026] Figure 6 It is a three-dimensional structural schematic diagram of the collecting cylinder, load-bearing frame, guide filter plate and other components of the present invention.

[0027] Figure 7 This is a three-dimensional structural separation diagram of the filter frame, load-bearing frame, guide filter plate and guide plate of the present invention.

[0028] Figure 8 It is a three-dimensional structural schematic diagram of the guide filter plate and guide plate and other components of the present invention.

[0029] Fig. 9 It is a three-dimensional structural schematic diagram of the acidification cylinder, the first scraper, the second scraper and other components of the present invention.

[0030] Fig.10 It is a three-dimensional structural schematic diagram of the filter frame, the first scraper, the second scraper and other components of the present invention.

[0031] Fig.11 It is a three-dimensional structural schematic diagram of the acidification cylinder, the first scraper, the baffle and other components of the present invention.

[0032] Fig.12 It is a three-dimensional structural schematic diagram of the fixing rod, the sliding plate, the tension spring and other components of the present invention.

[0033] Markings in the accompanying drawings: 1-placing cylinder, 2-collecting cylinder, 3-acidification cylinder, 4-cylinder cover, 5-motor, 6-water pipe, 7-turbine pump, 8-blocking frame, 801-spoiler, 9-filter frame, 91-through hole, 10-load-bearing frame, 11-guide filter plate, 12-guide plate, 13-first scraper, 131-material guide trough, 14-second scraper, 141-feed trough, 15-fixing rod, 16-slide plate, 17-tension spring. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example 1: An acidification device for preparing activated carbon, such as Figure 1-Figure 4As shown, it includes a placing cylinder 1, a collecting cylinder 2 for collecting impurities is fixedly connected to the lower part of the placing cylinder 1, the collecting cylinder 2 has an outer cavity and an inner cavity, the bottom of the placing cylinder 1 is connected to the top of the collecting cylinder 2, an acidifying cylinder 3 is placed in the middle of the collecting cylinder 2 by a snap-on method, the acidifying cylinder 3 is located in the placing cylinder 1, activated carbon particles and acid liquid are placed in the acidifying cylinder 3 for acidifying the activated carbon, the acidifying cylinder 3 has a plurality of filter holes for filtering out impurities and acid liquid, a cylinder cover 4 is placed on the top of the placing cylinder 1, a round hole is opened in the middle of the cylinder cover 4, a motor 5 is placed on the top of the cylinder cover 4, the output shaft of the motor 5 is inserted into the round hole of the cylinder cover 4, a socket is opened on the side of the acidifying cylinder 3 close to the cylinder cover 4, the output shaft of the motor 5 is snap-fitted with the socket of the acidifying cylinder 3, and a circulation cavity is opened at the bottom of the acidifying cylinder 3 A water pipe 6 is connected between the interior of the acidifying cylinder 3 and the circulation chamber. The pipe section of the water pipe 6 located in the acidifying cylinder 3 is provided with a plurality of filter holes. The inner cavity of the collecting cylinder 2 is connected with the circulation chamber at the bottom of the acidifying cylinder 3. The collecting cylinder 2 has a plurality of filter holes on one side close to the inner cavity. A turbine pump 7 is installed in the collecting cylinder 2. When the collecting cylinder 2 is docked with the acidifying cylinder 3, the turbine pump 7 is located at the circulation chamber of the acidifying cylinder 3. The acid liquid in the acidifying cylinder 3 flows into the outer cavity of the collecting cylinder 2 through the filter holes thereon, and then flows into the inner cavity and the circulation chamber through the filter holes of the collecting cylinder 2. The turbine pump 7 is used to return the acid liquid in the inner cavity and the circulation chamber into the acidifying cylinder 3 through the water pipe 6 to realize the circulation of the acid liquid. The outer cavity of the collecting cylinder 2 is connected with a retaining frame 8 along the up and down sliding. The retaining frame 8 has discharge grooves evenly distributed circumferentially for discharging the acid liquid and impurities.

[0036] When using the device to acidify activated carbon particles, the activated carbon to be acidified is first cleaned to remove dust and impurities on the surface, and then dried. The cylinder cover 4 is then removed upwards, and the activated carbon particles that have been pre-treated by cleaning and drying are placed in the acidification cylinder 3. Acid is slowly added, and the acid flows out through the filter holes of the acidification cylinder 3 to the outer cavity of the collecting cylinder 2, and then flows into the inner cavity of the collecting cylinder 2 and the circulation cavity at the bottom of the acidification cylinder 3 through the filter holes of the collecting cylinder 2. The cylinder cover 4 is then covered, and a motor 5 is placed on the top of the cylinder cover 4, and the output shaft of the motor 5 is inserted into the middle jack of the acidification cylinder 3 through the middle circular hole.

[0037] After the above preparations are completed, start the turbine pump 7, which pumps the acid in the circulation chamber in the collecting cylinder 2 and at the bottom of the acidifying cylinder 3 upward into the water pipe 6. The acid then flows back into the acidifying cylinder 3 through the filter holes of the water pipe 6, and reacts with the activated carbon particles in the acidifying cylinder 3 to produce an acidification reaction. In this way, the internal circulation of the acid is continuously realized, so that the acid can fully penetrate into the activated carbon to remove the pore-clogging impurities inside the activated carbon, thereby enhancing the chemical activity of the surface of the activated carbon particles and the selective adsorption capacity of the acid, and improving the precipitation efficiency of impurities.

[0038] At the same time, the motor 5 is started so that the output shaft of the motor 5 drives the acidification cylinder 3 to rotate at a suitable speed. Under the action of centrifugal force, the activated carbon impurities precipitated by the acid are thrown out through the filter holes of the acidification cylinder 3 and finally settle into the outer cavity of the collecting cylinder 2. In this way, compared with direct stirring, the centrifugal force generated by the rotation of the acidification cylinder 3 is relatively mild to the activated carbon, which can reduce the physical impact on the activated carbon particles and protect the integrity of the activated carbon structure. At the same time, the rotation can make the activated carbon particles in the acidification cylinder 3 evenly distributed, ensuring that each particle can contact the acid, achieving the uniformity of the acidification process and improving the regeneration efficiency.

[0039] After the acidification treatment is completed, the motor 5 and the turbo pump 7 are turned off, and the acid solution and impurities can be discharged by pushing the retaining frame 8 upwards. The acidification cylinder 3 can be taken out by opening the cylinder cover 4, so as to facilitate the removal of the regenerated activated carbon particles.

[0040] In summary, the present invention adopts the method of self-rotation of the acidification cylinder 3 to discharge the precipitated impurities, and cooperates with the turbine pump 7 to promote the circulation of the acid solution. Compared with the direct mechanical stirring method, the granular activated carbon can be treated more gently, which not only improves the efficiency of impurity precipitation, but also reduces the risk of damage to the activated carbon structure, and takes into account both efficient impurity removal and structural protection. Without direct external force stirring, the fluidity between the acid solution and the activated carbon particles is accelerated by the principle of fluid dynamics, which not only ensures the effect of acidification regeneration, but also maintains the structural morphology of the activated carbon, which is beneficial to its long-term performance and recycling.

[0041] like Figure 3 As shown, it also includes a plurality of spoilers 801 in an annular array, the spoilers 801 are fixedly connected to the inner wall of the placement tube 1, and the spoilers 801 in the annular array are all tilted in the counterclockwise direction.

[0042] When the acidification cylinder 3 rotates, the acid liquid drives the impurities to be thrown out in one direction. When the acidification cylinder 3 is rotated as mentioned above, by controlling the rotation direction of the acidification cylinder 3, the direction in which the liquid is thrown out is opposite to the direction of the spoiler 801, which can interrupt the original single-direction liquid flow, thereby forming a complex flow field, causing the liquid to shake in a wave-like manner, which is conducive to more complete contact and mixing between the acid liquid and the activated carbon particles, and increasing the migration rate of impurities from the inside of the activated carbon.

[0043] Embodiment 2: Based on embodiment 1, Figure 6-Figure 8As shown, it also includes a filter frame 9, which is slidably connected to the outer cavity of the collection cylinder 2 along the up-down direction. The filter frame 9 is provided with through holes 91 distributed at equal intervals in the circumferential direction. When the filter frame 9 moves upward to be flush with the top of the collection cylinder 2, the through holes 91 are blocked by the collection cylinder 2. The outer cavity of the collection cylinder 2 is slidably connected to a load-bearing frame 10 for receiving impurities along the up-down direction. The load-bearing frame 10 slides downward under the gravity of the accumulated impurities. The filter frame 9 is slidably connected to the load-bearing frame 10. The weight of the filter frame 9 is greater than the weight of the load-bearing frame 10. When the settled impurities accumulate to a certain amount, the filter frame 9 and the load-bearing frame 10 jointly lock the settled impurities in Between the two, a guide filter plate 11 is fixedly connected to one side of the outer cavity of the collecting cylinder 2 close to the inner cavity. The guide filter plate 11 is used to guide impurities to the load-bearing frame 10. The guide filter plate 11 is slidably connected to the load-bearing frame 10. The bottom of the collecting cylinder 2 is horizontally slidably connected with four circumferentially distributed guide plates 12. The guide plate 12 has an inner bevel groove and an outer bevel groove. The filter frame 9 is slidably connected to the outer bevel groove of the guide plate 12, and the load-bearing frame 10 is slidably connected to the inner bevel groove of the guide plate 12. When the load-bearing frame 10 slides downward, the load-bearing frame 10 squeezes the guide plate 12 to slide outward through the inner bevel groove, and the guide plate 12 squeezes the filter frame 9 to slide upward through the outer bevel groove.

[0044] As mentioned above, impurities settle in the outer cavity of the collecting cylinder 2. As the amount of impurities accumulated increases to the point of being full, the impurities approach the rotating acidification cylinder 3, which easily drives the settled impurities to flow again, weakening the discharge effect of the impurities. To avoid this effect, it is necessary to lock the settled impurities in the outer cavity of the collecting cylinder 2 when the impurities accumulate to a certain extent. The specific operation is as follows:

[0045] In the early stage, impurities flow downward from the through hole 91 to the guide filter plate 11 with the acid, and are finally accumulated and squeezed onto the load-bearing frame 10. In the later stage, as the accumulation of impurities increases to a certain extent, the load-bearing frame 10 begins to slide downward. The load-bearing frame 10 squeezes the guide plate 12 to make the filter frame 9 slide upward to be flush with the top of the collecting cylinder 2 to block the through hole 91. In this way, the impurities accumulated on the load-bearing frame 10 are locked between the filter frame 9 and the load-bearing frame 10, and the acid circulates from the filter holes of the filter frame 9.

[0046] After the retaining frame 8 is subsequently opened to discharge all the acid and impurities, the load-bearing frame 10 is no longer under pressure, and the filter frame 9 slides downward under its own gravity. The filter frame 9 slides upward and resets by squeezing the load-bearing frame 10 through the guide block.

[0047] Embodiment 3: Based on embodiment 2, Fig. 9 and Fig.10As shown, it also includes four circumferentially distributed first scrapers 13, the first scrapers 13 are fixedly connected to the bottom of the acidification cylinder 3, the first scrapers 13 are in contact with the side wall of the collecting cylinder 2 close to the filter hole, and are used to scrape impurities at the filter hole of the collecting cylinder 2. The first scraper 13 has a guide groove 131, which is used to guide the impurities to the load-bearing frame 10. The acidification cylinder 3 has four circumferentially distributed second scrapers 14 fixedly connected to one side close to the first scraper 13. The collecting cylinder 2 has four circumferentially distributed feed grooves 141, which are located directly above the through hole 91. The impurities scraped by the second scrapers 14 are discharged to the load-bearing frame 10 through the feed grooves 141.

[0048] When the acidification cylinder 3 rotates, the first scraper 13 and the second scraper 14 are driven to rotate synchronously. The first scraper 13 can be used to scrape off impurities on the filter holes of the collecting cylinder 2 to prevent the impurities from blocking the filter holes of the collecting cylinder 2 to avoid affecting the circulation of the acid solution. The guide groove 131 can accurately guide the impurities to the load-bearing frame 10 to prevent the impurities from accumulating on the side close to the guide filter plate 11; when the filter frame 9 moves upward to contact the second scraper 14, the rotating second scraper 14 can scrape off part of the impurities filtered on the filter frame 9, so that they fall onto the load-bearing frame 10 through the feed groove 141, which is convenient for centralized collection of impurities.

[0049] like Fig.11 and Fig.12 As shown, it also includes four annular array fixed rods 15, which are fixedly connected to the bottom of the collecting tube 2. A slide plate 16 is slidably connected between the four annular array fixed rods 15 along the up and down directions. The slide plate 16 is fixedly connected to the baffle frame 8. The bottom of the first scraper 13 contacts the top of the baffle frame 8. A tension spring 17 is fixedly connected between the slide plate 16 and the collecting tube 2, and the tension spring 17 is sleeved on the fixed rod 15.

[0050] In order to automatically push the baffle 8 upwards to achieve the effect of automatically discharging the acid and impurities, the details are as follows:

[0051] When the acidification cylinder 3 is docked to the collecting cylinder 2, the first scraper 13 squeezes the retaining frame 8 to slide downward, and the retaining frame 8 drives the slide plate 16 to slide downward along the fixed rod 15, and the tension spring 17 is stretched. After the acidification treatment is completed, when the collecting cylinder 2 is taken out upward, the first scraper 13 is separated from the retaining frame 8, and the tension spring 17 is reset to drive the slide plate 16 to slide upward along the fixed rod 15, thereby driving the retaining frame 8 to slide upward, thereby realizing automatic discharge of impurities and acid liquid.

[0052] The technical principles of the embodiments of the present invention are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the embodiments of the present invention without creative work, and these methods will fall within the protection scope of the embodiments of the present invention.

Claims

1. An acidification device for preparing activated carbon, characterized in that: The invention comprises a placing cylinder (1), wherein a collecting cylinder (2) for collecting impurities is fixedly connected to the lower part of the placing cylinder (1), wherein the collecting cylinder (2) is connected to an acidifying cylinder (3) for performing an acidification reaction on activated carbon in a detachable manner, wherein the acidifying cylinder (3) is provided with a plurality of filter holes for filtering out impurities and acid liquid, wherein a cylinder cover (4) is placed on the top of the placing cylinder (1), wherein the cylinder cover (4) is provided with a circular hole, wherein a motor (5) is placed on the top of the cylinder cover (4), wherein the output shaft of the motor (5) is plugged into the circular hole of the cylinder cover (4), wherein a plug hole is provided on a side of the acidifying cylinder (3) close to the cylinder cover (4), wherein the output shaft of the motor (5) is plugged into the circular hole of ... The jack of the acidifying cylinder (3) is snap-fitted, a circulation cavity is formed at the bottom of the acidifying cylinder (3), a water pipe (6) is connected between the inside of the acidifying cylinder (3) and the circulation cavity, a pipe section of the water pipe (6) located inside the acidifying cylinder (3) is provided with a plurality of filter holes, the collecting cylinder (2) is provided with an outer cavity and an inner cavity, the inner cavity of the collecting cylinder (2) is connected with the circulation cavity at the bottom of the acidifying cylinder (3), a plurality of filter holes are formed on a side of the collecting cylinder (2) close to the inner cavity, a turbine pump (7) is installed in the collecting cylinder (2), a retaining frame (8) is slidably connected to the outer cavity of the collecting cylinder (2), and the retaining frame (8) is provided with discharge grooves evenly distributed in the circumferential direction; It also comprises a filter frame (9), the filter frame (9) being slidably connected to the outer cavity of the collection cylinder (2) in the up-down direction, the filter frame (9) being provided with through holes (91) distributed at equal intervals in the circumferential direction, and when the filter frame (9) is moved to be flush with the top of the collection cylinder (2), the through holes (91) are blocked by the collection cylinder (2), the outer cavity of the collection cylinder (2) being slidably connected to a load-bearing frame (10) in the up-down direction, and the filter frame (9) being slidably connected to the load-bearing frame (10) A guide filter plate (11) is fixedly connected to one side of the outer cavity of the collecting cylinder (2) close to the inner cavity, the guide filter plate (11) is slidably connected to the load-bearing frame (10), a circumferentially distributed guide plate (12) is horizontally slidably connected to the bottom of the collecting cylinder (2), the guide plate (12) is provided with an inner inclined groove and an outer inclined groove, the filter frame (9) is slidably connected to the outer inclined groove of the guide plate (12), and the load-bearing frame (10) is slidably connected to the inner inclined groove of the guide plate (12).

2. The acidification device for preparing activated carbon according to claim 1, characterized in that: The acidification cylinder (3) is stably placed in the middle of the collection cylinder (2) by means of a snap-on connection; when the collection cylinder (2) and the acidification cylinder (3) are docked, the turbine pump (7) is located in the circulation chamber of the acidification cylinder (3).

3. The acidification device for preparing activated carbon according to claim 2, characterized in that: It also includes an annular array of spoilers (801), wherein the spoilers (801) are fixedly connected to the inner wall of the placement tube (1).

4. The acidification device for preparing activated carbon according to claim 3, characterized in that: The spoilers (801) of the annular array are all arranged to be inclined in the same direction.

5. The acidification device for preparing activated carbon according to claim 4, characterized in that: The weight of the filter frame (9) is greater than the weight of the load-bearing frame (10).

6. The acidification device for preparing activated carbon according to claim 5, characterized in that: It also includes a circumferentially distributed first scraper (13), the first scraper (13) being fixedly connected to the bottom of the acidification cylinder (3), the first scraper (13) being in contact with the side wall of the collecting cylinder (2) close to the filter hole, and being used to scrape away impurities at the filter hole of the collecting cylinder (2).

7. The acidification device for preparing activated carbon according to claim 6, characterized in that: The first scraper (13) is provided with a material guide groove (131) for guiding impurities to the load-bearing frame (10).

8. The acidification device for preparing activated carbon according to claim 7, characterized in that: It also includes a circumferentially distributed second scraper (14), the second scraper (14) being fixedly connected to a side of the acidification cylinder (3) close to the first scraper (13), and the collecting cylinder (2) is provided with a circumferentially distributed feed groove (141), the feed groove (141) being located directly above the through hole (91).

9. The acidification device for preparing activated carbon according to claim 8, characterized in that: It also includes a ring-shaped array of fixed rods (15), the fixed rods (15) are fixedly connected to the bottom of the collecting barrel (2), a slide plate (16) is slidably connected between the fixed rods (15) of the ring-shaped array, the slide plate (16) is fixedly connected to the baffle (8), the bottom of the first scraper (13) is in contact with the top of the baffle (8), and a tension spring (17) is fixedly connected between the slide plate (16) and the collecting barrel (2).

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