Phosphorus removal equipment and phosphorus removal method for mesoporous activated carbon preparation

Abstract

The phosphorus removal equipment comprises a shell, the upper end of the shell is symmetrically and fixedly connected with two connecting plates, the upper ends of the two connecting plates are jointly and fixedly connected with a material storage box, a material groove is formed in the upper end of the material storage box, and a connecting cylinder is arranged between the shell and the material storage box; the inner bottom of the storage box is communicated with the connecting cylinder through a first blanking port, and the inner bottom of the connecting cylinder is communicated with the interior of the shell through a second blanking port; and the intermittent discharging mechanism comprises a rotating roller rotationally connected between the front inner wall and the rear inner wall of the connecting cylinder, and a temporary storage groove is formed in the rotating roller. The invention further discloses a phosphorus removal method for mesoporous activated carbon preparation. In actual use, the equipment is high in overall continuity, quantitative phosphorus removal is achieved, the phosphorus removal effect is guaranteed, and after phosphorus removal, products can be pre-dried, so that the drying efficiency in the follow-up process is improved.

Description

Technical Field

[0001] The invention relates to the field of activated carbon preparation, and in particular to a dephosphorization device and a dephosphorization method for preparing mesoporous activated carbon. Background Art

[0002] The main raw materials used in the process of preparing mesoporous activated carbon by the phosphoric acid method include biomass such as wood powder, phosphoric acid, and hydrochloric acid. First, the biomass such as wood powder is screened to remove hard impurities in the raw materials, and then the screened wood powder is impregnated in phosphoric acid. The concentration of phosphoric acid should be experimentally optimized according to the specific variety type and resin content of the wood powder. When the type of wood powder is determined, the phosphoric acid concentration gradient is set, and then the wood powder is allowed to fully absorb the phosphoric acid solution at a certain impregnation ratio. The obtained product is sent to a rotary activation furnace through a conveying device for carbon activation, and the activated material is phosphoric acid recovered. The phosphoric acid content in the solution is reduced to less than 5 degrees Baume, and then washed with clean water, dried, and packaged as a finished product. In the above process, some fine particles or precipitates of phosphates may be formed. If these particles are further processed, they may present an appearance similar to "phosphorus powder", thereby affecting the quality of the product. Therefore, it is necessary to remove impurities from the phosphate particles or precipitates produced in the above process in a timely manner;

[0003] The commonly used method now is the flushing method to remove phosphate particles or sediments. However, the current flushing method has poor overall continuity during specific operations and requires users to perform multiple steps, resulting in low actual efficiency. In addition, after the flushing is completed, the raw materials will be in a relatively moist state and will require a longer drying time. Therefore, how to solve this problem needs to be considered. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings existing in the prior art, and a phosphorus removal equipment for the preparation of mesoporous activated carbon is proposed. In actual use, the equipment has strong overall continuity and realizes quantitative phosphorus removal, ensuring the phosphorus removal effect. After phosphorus removal, the product can also be pre-dried to improve the drying efficiency in subsequent processes.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A dephosphorization device for preparing mesoporous activated carbon comprises a shell, the upper end of which is symmetrically fixedly connected with two connecting plates, the upper ends of the two connecting plates are commonly fixedly connected with a material storage box, the upper end of the material storage box is provided with a material trough, a connecting cylinder is arranged between the shell and the material storage box, the inner bottom connecting cylinder of the material storage box is connected through a first blanking port, and the inner bottom of the connecting cylinder is connected with the inside of the shell through a second blanking port; an intermittent blanking mechanism, the intermittent blanking mechanism comprises a rotating roller rotatably connected between the front and rear inner walls of the connecting cylinder, and a temporary storage groove is provided on the rotating roller; a driving mechanism, the driving mechanism is used to drive the intermittent blanking mechanism, the driving mechanism comprises a driving motor installed on the front side of the shell, the output shaft of the driving motor is fixedly connected with a first pulley, the front end of the rotating shaft of the rotating roller extends to the outside and is provided with a second pulley, the first pulley and the second pulley are connected by a transmission belt transmission; a flushing mechanism, the flushing mechanism is used to realize the dephosphorization operation; a drying mechanism, the drying mechanism is used to pre-dry the raw materials after post-treatment.

[0007] Preferably, a liquid discharge port is provided on the left side wall of the bottom space of the shell. A material discharge port is provided on the right side wall of the middle space of the shell.

[0008] Preferably, a shaking net that can slide up and down is arranged in the shell, the upper end of the shaking net is elastically connected to the inner top of the shell through a plurality of springs, and the shaking net is arranged at an angle.

[0009] Preferably, the output shaft of the driving motor is fixedly connected to a rotating shaft, the rear end of the rotating shaft extends into the interior of the shell, the rear end of the rotating shaft is rotatably connected to the rear inner wall of the shell, a cam is installed on the rotating shaft, and the cam contacts the lower end surface of the shaking net.

[0010] Preferably, the flushing mechanism includes a first piston cylinder fixedly connected to the rear side of the shell, a first piston plate that can slide up and down is arranged in the first piston cylinder, the rear end of the rotating shaft of the rotating roller extends to the outside and is fixedly connected to a rotating disk, a connecting rod is rotatably connected to the eccentric rear side of the rotating disk, and the other end of the connecting rod is rotatably connected to the upper end of the first piston plate.

[0011] Preferably, an inclined guide plate is fixedly connected to the inner top of the shell, a strip-shaped cavity is opened in the inclined deflector plate, a liquid spray port is opened on the left side wall of the strip-shaped cavity, the inner bottom space of the first piston cylinder is connected to the strip-shaped cavity through a first one-way tube, and the inner bottom space of the first piston cylinder is connected to a second one-way tube.

[0012] Preferably, the drying mechanism includes two fixing rods symmetrically fixedly connected to the upper end of the first piston cylinder, the upper ends of the two fixing rods are commonly fixedly connected to the second piston cylinder, a slidable second piston plate is arranged in the second piston cylinder, the first piston plate and the second piston plate are fixedly connected by a connecting rod, a one-way opening is opened at the top of the second piston cylinder, a hollow bar is fixedly connected to the right side of the shell, a plurality of gas exhaust ports are opened at the inner bottom of the hollow bar, a heating wire is installed at the inner top of the second piston cylinder, and the inner top space of the second piston cylinder is connected to the inside of the hollow bar through a third one-way tube.

[0013] Preferably, one-way valves for one-way flow of fluid are installed inside the first one-way tube, the second one-way tube, the third one-way tube and the one-way port.

[0014] The present invention also discloses a method for removing phosphorus for preparing mesoporous activated carbon, using the above-mentioned phosphorus removal equipment, comprising the following steps:

[0015] The first step: first put the activated carbon pellets into the trough to put the raw materials;

[0016] Step 2: Start the drive motor. After the drive motor is started, it will perform the operations of dropping, spraying water and shaking;

[0017] Step 3: After the drive motor is started, start the heating wire;

[0018] Step 4: Finally, the wastewater is collected from the discharge port, and the activated carbon particles after phosphorus removal are collected from the discharge port.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The clever combination of the rotating roller and the temporary storage tank ensures the accurate delivery and uniform mixing of the activated carbon particles. At the same time, the design of the guide plate realizes the efficient distribution of the material on the shaking net, which enhances the contact area between the dissolving liquid and the activated carbon particles and improves the dissolution efficiency of the phosphate.

[0021] 2. The linkage mechanism of the cam and the spring enables the shaking net to shake back and forth up and down, which effectively promotes the separation of water and activated carbon particles. At the same time, through the shaking action, the tiny impurities in the activated carbon particles are further removed, thereby improving the purity and quality of the product.

[0022] 3. The linkage use of the electric heating wire and the second piston cylinder realizes the instant pre-drying of the activated carbon particles through the one-way hot air flow, which significantly reduces the moisture attached to the surface of the particles, saves time and energy for the subsequent drying steps, and improves the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1This is a schematic diagram of the structure of a phosphorus removal device for preparing mesoporous activated carbon proposed by the present invention;

[0024] Figure 2 for Figure 1 A cross-sectional view of

[0025] Figure 3 for Figure 2 A magnified image of point A;

[0026] Figure 4 for Figure 1 A rear view schematic diagram of

[0027] Figure 5 for Figure 4 sectional view of .

[0028] In the figure: 1 shell, 2 material storage box, 3 material trough, 4 connecting plate, 5 connecting cylinder, 6 liquid discharge port, 7 rotating disc, 8 driving motor, 9 rotating shaft, 10 first pulley, 11 transmission belt, 12 second pulley, 13 cam, 14 first blanking port, 15 rotating roller, 16 temporary storage tank, 17 material discharge port, 18 hollow bar, 19 gas discharge port, 20 spring, 21 second blanking port, 22 connecting rod, 23 strip cavity, 24 liquid spray port, 25 first piston cylinder, 26 first one-way pipe, 27 second one-way pipe, 28 second piston cylinder, 29 third one-way pipe, 30 one-way port, 31 fixed rod, 32 connecting rod, 33 heating wire, 34 first piston plate, 35 second piston plate, 36 shaking net. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0031] Reference Figure 1-5, a dephosphorization device for preparing mesoporous activated carbon, comprising a shell 1, two connecting plates 4 are symmetrically fixedly connected to the upper end of the shell 1, a material storage box 2 is fixedly connected to the upper ends of the two connecting plates 4, a material trough 3 is provided at the upper end of the material storage box 2, a connecting tube 5 is provided between the shell 1 and the material storage box 2, the inner bottom of the connecting tube 5 of the material storage box 2 is connected through a first drop opening 14, the inner bottom of the connecting tube 5 is connected to the inside of the shell 1 through a second drop opening 21, a liquid discharge port 6 is provided on the left wall of the bottom space of the shell 1, and a discharge port 17 is provided on the right wall of the middle space of the shell 1;

[0032] As an embodiment of the present invention, an intermittent blanking mechanism is also included. The intermittent blanking mechanism includes a rotating roller 15 rotatably connected between the front and rear inner walls of the connecting cylinder 5. The rotating roller 15 is provided with a temporary storage groove 16.

[0033] As an embodiment of the present invention, a driving mechanism is further included, and the driving mechanism is used to drive the intermittent blanking mechanism. The driving mechanism includes a driving motor 8 installed on the front side of the housing 1, and the output shaft of the driving motor 8 is fixedly connected to the first pulley 10. The front end of the rotating shaft of the rotating roller 15 extends to the outside and is installed with a second pulley 12. The first pulley 10 and the second pulley 12 are connected by a transmission belt 11. The radius of the first pulley 10 is one quarter of the radius of the second pulley 12, so as to realize the reduction transmission;

[0034] As an embodiment of the present invention, a shaking net 36 that can slide up and down is arranged in the shell 1, and the upper end of the shaking net 36 is elastically connected to the inner top of the shell 1 through multiple springs 20. The shaking net 36 is arranged obliquely, and the output shaft of the driving motor 8 is fixedly connected to the rotating shaft 9, and the rear end of the rotating shaft 9 extends to the inside of the shell 1. The rear end of the rotating shaft 9 is rotatably connected to the rear inner wall of the shell 1. A cam 13 is installed on the rotating shaft 9, and the cam 13 contacts the lower end surface of the shaking net 36. When it is used, the shaking net 36 can be reciprocated up and down by rotating the cam 13 and using the spring 20;

[0035] As an embodiment of the present invention, it also includes a flushing mechanism, which is used to realize the dephosphorization operation. The flushing mechanism includes a first piston cylinder 25 fixedly connected to the rear side of the shell 1, and a first piston plate 34 that can slide up and down is arranged in the first piston cylinder 25. The rear end of the rotating shaft of the rotating roller 15 extends to the outside and is fixedly connected to the rotating disc 7. The connecting rod 22 is rotatably connected to the eccentric part of the rear side of the rotating disc 7, and the other end of the connecting rod 22 is rotatably connected to the upper end of the first piston plate 34. An inclined guide plate is fixedly connected to the inner top of the shell 1, and a strip cavity 23 is provided in the inclined backflow plate. A liquid spray port 24 is provided on the left side wall of the strip cavity 23. The inner bottom space of the first piston cylinder 25 is connected to the strip cavity 23 through a first one-way tube 26. The inner bottom space of the first piston cylinder 25 is connected to a second one-way tube 27, and the other end of the second one-way tube 27 is connected to an external water tank.

[0036] As an embodiment of the present invention, it also includes a drying mechanism, which is used for pre-drying the post-processed raw materials. The drying mechanism includes two fixed rods 31 symmetrically fixedly connected to the upper end of the first piston cylinder 25, and the upper ends of the two fixed rods 31 are commonly fixedly connected to the second piston cylinder 28. A slidable second piston plate 35 is arranged in the second piston cylinder 28. The first piston plate 34 and the second piston plate 35 are fixedly connected by a connecting rod 32. A one-way port 30 is opened at the top of the second piston cylinder 28. A hollow bar 18 is fixedly connected to the right side of the shell 1. A plurality of gas exhaust ports 19 are opened at the inner bottom of the hollow bar 18. The inner top of the second piston cylinder 28 A heating wire 33 is installed in the part, and the inner top space of the second piston cylinder 28 is connected with the interior of the hollow bar 18 through the third one-way tube 29. The first one-way tube 26, the second one-way tube 27, the third one-way tube 29 and the one-way port 30 are all equipped with one-way valves for one-way flow of fluid. Furthermore, the one-way valve in the first one-way tube 26 allows the bottom space of the first piston cylinder 25 to enter the strip-shaped cavity 23 in one direction, the one-way valve in the second one-way tube 27 allows the external water tank to enter the bottom space of the first piston cylinder 25 in one direction, the one-way valve in the one-way port 30 allows the one-way valve to flow from top to bottom, and the one-way valve in the third one-way tube 29 allows the second piston cylinder 28 to enter the hollow bar 18 in one direction.

[0037] In the present invention, in actual use, the activated activated carbon particles are first put into the trough 3, and then the drive motor 8 is started. After the drive motor 8 is started, the first pulley 10 and the second pulley 12 are driven to rotate the rotating roller 15, and the rotation of the rotating roller 15 causes the temporary storage trough 16 to partially rotate. When it is located at the top, the activated activated carbon particles in the trough 3 will fall into the temporary storage trough 16. When it is located at the bottom, the activated activated carbon particles in the temporary storage trough 16 will pass through the guide plate and fall to the left side of the shaking net 36.

[0038] The rotation of the rotating shaft 9 will also drive the rotating disc 7 to rotate. The connecting rod 22 can realize the up and down reciprocating motion of the first piston plate 34. In conjunction with the first one-way tube 26, the second one-way tube 27 and the internal one-way valve, a one-way water flow can be generated in the external water tank, the first piston cylinder 25 and the strip cavity 23. Finally, water is sprayed out from the liquid spray port 24 to contact the activated carbon particles and dissolve the phosphate therein. The dissolved phosphate and smaller impurities will pass through the shaking net 36 and fall to the bottom of the shell 1 and be discharged from the liquid discharge port 6. The start of the drive motor 8 will rotate the rotating shaft 9, thereby rotating the cam 13. Through the rotation of the cam 13 and the use of the spring 20, the shaking net 36 can be reciprocated up and down. By shaking, the water and the activated carbon particles can be separated more comprehensively, and finally discharged from the discharge port 17. At this time, there is less water attached to the activated carbon particles.

[0039] Furthermore, in the above process, the heating wire 33 can be started, and the up and down movement of the first piston plate 34 will cause the second piston plate 35 to reciprocate up and down through the connecting rod 32. In this way, in conjunction with the one-way port 30 and the one-way valve in the third one-way tube 29, a one-way hot air flow can be generated in the outside, the second piston cylinder 28 and the hollow bar 18, and finally a high-temperature airflow is discharged from multiple gas outlets 19 to pre-dry the activated carbon particles, thereby improving the subsequent drying efficiency.

[0040] The present invention also discloses a method for removing phosphorus for preparing mesoporous activated carbon, using the above-mentioned phosphorus removal equipment, comprising the following steps:

[0041] The first step: firstly put the activated carbon pellets into the trough 3 to put the raw materials;

[0042] Step 2: Start the driving motor 8. After the driving motor 8 is started, the material dropping, water spraying and shaking operations will be performed;

[0043] Step 3: After the driving motor 8 is started, the heating wire 33 is started;

[0044] Step 4: Finally, the generated wastewater is collected from the discharge port 6, and the activated carbon particles after phosphorus removal are collected from the discharge port 17.

[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A phosphorus removal device for preparing mesoporous activated carbon, characterized in that: include: A shell (1), wherein two connecting plates (4) are symmetrically fixedly connected to the upper end of the shell (1), and the upper ends of the two connecting plates (4) are commonly fixedly connected to a material storage box (2), and a material trough (3) is provided at the upper end of the material storage box (2). A connecting tube (5) is provided between the shell (1) and the material storage box (2), and the inner bottom of the connecting tube (5) of the material storage box (2) is connected to the inside of the shell (1) through a second material drop opening (21); An intermittent blanking mechanism, the intermittent blanking mechanism comprising a rotating roller (15) rotatably connected between the front and rear inner walls of the connecting cylinder (5), the rotating roller (15) being provided with a temporary storage groove (16); A driving mechanism, the driving mechanism is used to drive the intermittent blanking mechanism, the driving mechanism comprises a driving motor (8) installed on the front side of the housing (1), the output shaft of the driving motor (8) is fixedly connected to a first pulley (10), the front end of the rotating shaft of the rotating roller (15) extends to the outside and is installed with a second pulley (12), the first pulley (10) and the second pulley (12) are connected by a transmission belt (11); A flushing mechanism, wherein the flushing mechanism is used to implement a dephosphorization operation; A drying mechanism is used for pre-drying the raw materials after post-treatment.

2. The phosphorus removal equipment for preparing mesoporous activated carbon according to claim 1, characterized in that: A liquid discharge port (6) is provided on the left side wall of the bottom space of the shell (1). A material discharge port (17) is provided on the right side wall of the middle space of the shell (1).

3. The phosphorus removal equipment for preparing mesoporous activated carbon according to claim 1, characterized in that: A shaking net (36) that can slide up and down is arranged in the shell (1), and the upper end of the shaking net (36) is elastically connected to the inner top of the shell (1) through a plurality of springs (20), and the shaking net (36) is arranged in an inclined manner.

4. The phosphorus removal equipment for preparing mesoporous activated carbon according to claim 3, characterized in that: The output shaft of the driving motor (8) is fixedly connected to a rotating shaft (9), the rear end of the rotating shaft (9) extends into the interior of the housing (1), the rear end of the rotating shaft (9) is rotatably connected to the rear inner wall of the housing (1), and a cam (13) is mounted on the rotating shaft (9), and the cam (13) contacts the lower end surface of the shaking net (36).

5. The phosphorus removal equipment for preparing mesoporous activated carbon according to claim 1, characterized in that: The flushing mechanism comprises a first piston cylinder (25) fixedly connected to the rear side of the housing (1), a first piston plate (34) which can slide up and down is arranged in the first piston cylinder (25), the rear end of the rotating shaft of the rotating roller (15) extends to the outside and is fixedly connected to a rotating disc (7), a connecting rod (22) is rotatably connected to the rear eccentric part of the rotating disc (7), and the other end of the connecting rod (22) is rotatably connected to the upper end of the first piston plate (34).

6. The phosphorus removal equipment for preparing mesoporous activated carbon according to claim 5, characterized in that: The inner top of the shell (1) is fixedly connected to an inclined guide plate, a strip-shaped cavity (23) is provided in the inclined inverted flow plate, a liquid spraying port (24) is provided on the left side wall of the strip-shaped cavity (23), the inner bottom space of the first piston cylinder (25) is connected to the strip-shaped cavity (23) via a first one-way tube (26), and the inner bottom space of the first piston cylinder (25) is connected to a second one-way tube (27).

7. The phosphorus removal equipment for preparing mesoporous activated carbon according to claim 5, characterized in that: The drying mechanism comprises two fixed rods (31) symmetrically fixedly connected to the upper end of the first piston cylinder (25); the upper ends of the two fixed rods (31) are commonly fixedly connected to the second piston cylinder (28); a slidable second piston plate (35) is arranged in the second piston cylinder (28); the first piston plate (34) and the second piston plate (35) are fixedly connected by a connecting rod (32); a one-way port (30) is provided at the top of the second piston cylinder (28); a hollow bar (18) is fixedly connected to the right side of the shell (1); a plurality of gas exhaust ports (19) are provided at the inner bottom of the hollow bar (18); a heating wire (33) is installed at the inner top of the second piston cylinder (28); and the inner top space of the second piston cylinder (28) is connected to the inside of the hollow bar (18) through a third one-way tube (29).

8. The phosphorus removal equipment for preparing mesoporous activated carbon according to claim 7, characterized in that: One-way valves for one-way flow of fluid are installed inside the first one-way tube (26), the second one-way tube (27), the third one-way tube (29) and the one-way port (30).

9. A method for removing phosphorus for preparing mesoporous activated carbon, using the phosphorus removal equipment according to any one of claims 1 to 8, characterized in that: The following steps are involved: The first step is to put activated carbon pellets into the feed tank (3) to put the raw materials; Step 2: Start the driving motor (8). After the driving motor (8) is started, the material dropping, water spraying and shaking operations will be performed; Step 3: After the driving motor (8) is started, the heating wire (33) is started; Step 4: Finally, the generated wastewater is collected from the discharge port (6), and the activated carbon particles after phosphorus removal are collected from the discharge port (17).

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