Grinding device for stabilizing carrier surface Pt after high-temperature calcination

Abstract

The utility model discloses a grinding device for stabilizing carrier surface Pt after high-temperature calcination, which comprises a grinding tank body, supporting legs are welded on the periphery of the bottom of the grinding tank body, a sealing bottom cover is screwed on the outer wall of the bottom of the grinding tank body, a grinding vessel is arranged at the bottom of the grinding tank body, and a sealing top cover is fixed on the top of the grinding tank body through a hasp lock. A static grinding disc is fixed to the axis of the bottom of the sealing top cover, a movable grinding disc is arranged at the bottom of the static grinding disc, arc-shaped sliding blocks distributed at equal intervals are welded to the outer wall of the periphery of the movable grinding disc, and the arc-shaped sliding blocks are slidably connected to the inner wall of the annular sliding groove in an inserted mode. After the carrier particles are subjected to primary grinding processing, in order to further improve the grinding effect, the telescopic air cylinder is used for continuously driving the grinding block to carry out impact extrusion processing, so that the carrier particles are extruded, and in the extrusion process, the driving motor is used for driving the extruded grinding block to rotate, so that the grinding effect is improved. And therefore, the overall grinding effect can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to a grinding device for stabilizing Pt on the surface of a carrier after high-temperature calcination. Background Technique

[0002] Chlorinated organic compounds (Cl-VOCs) are volatile organic compounds with high toxicity, strong stability and poor reactivity, and are widely used in fields such as material synthesis, petroleum refining and pharmaceutical production. Catalytic combustion technology is one of the effective means for purifying Cl-VOCs pollutants, and developing low-cost, highly efficient, stable and broad-spectrum low-content noble metal catalysts is the key to realizing the application of this technology. CaO, Al2O3, TiO2, and SiO2, as inexpensive carriers, not only have high-temperature stability, but also have a large specific surface area, regular pore structure, and rich acidic sites, and are widely used in fields such as separation, adsorption and catalysis. However, the catalytic activity of conventional metal oxides is relatively low, and there are many chlorine-containing by-products in the catalytic degradation of Cl-VOCs, which leads to higher energy consumption and secondary pollution problems. Therefore, effectively improving the dispersion and binding ability of Pt on the carrier surface can effectively improve the catalytic oxidation performance and anti-agglomeration ability of Pt-based catalysts. Promoting the highly dispersed and stable active components such as noble metals can make the supported catalyst have good acidity and oxidizing property, so as to realize the low-temperature oxidation of industrial-emitted VOCs. Among the ways to improve the oxidizing property, grinding is carried out to reduce the particle volume of the carrier and increase the surface area of the carrier in contact with the reaction, so as to effectively improve the overall reaction effect. However, the existing grinding devices still have certain defects when in use:

[0003] Insufficient grinding and large particles. In the process of grinding the carrier by the existing carrier grinding device, most of them only perform single grinding treatment, and such a grinding treatment method cannot effectively grind the carrier with too large a difference in the size of raw material particles, so that the particles of the ground carrier are still uneven in size, and thus the surface area of reaction contact has too large a difference, affecting the reaction rate. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a grinding device for stabilizing Pt on the surface of a carrier after high-temperature calcination.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A grinding device for stabilizing Pt on the surface of a carrier after high-temperature calcination, comprising a grinding tank body with support legs welded around the bottom. A sealed bottom cover is screwed on the outer wall of the bottom of the grinding tank body, and a grinding utensil is arranged at the bottom of the grinding tank body. The top of the grinding tank body is fixed with a sealed top cover through a buckle lock, and a static grinding disc is fixed at the center of the bottom of the sealed top cover. A dynamic grinding disc is arranged at the bottom of the static grinding disc, and arc-shaped sliding blocks are welded on the outer wall of the periphery of the dynamic grinding disc at equal intervals. The arc-shaped sliding blocks are slidably inserted into the inner wall of the annular sliding groove. A driving motor is fixed at the center of the middle part of the grinding tank body through bolts, and a fixing plate is welded on the output shaft of the driving motor. A telescopic cylinder is fixed on the outer wall of the bottom of the fixing plate through bolts, and a grinding block is arranged at the piston rod of the telescopic cylinder.

[0007] As a further scheme of the present invention: a positioning groove is opened at the center of the inner wall of the top of the sealed bottom cover, and the size of the positioning groove is adapted to the grinding utensil. The diameter size of the grinding utensil is adapted to the inner wall size of the grinding tank body.

[0008] As a further scheme of the present invention: a grinding groove is opened on the outer wall of the bottom of the static grinding disc, and a grinding convex block is welded on the outer wall of the top of the dynamic grinding disc. The size of the grinding convex block is adapted to the inner wall size of the grinding groove.

[0009] As a further scheme of the present invention: a feeding pipe is communicated with one side inner wall of the top of the grinding groove of the static grinding disc, and a feeding hopper is welded on the outer wall of the top of the feeding pipe.

[0010] As a further scheme of the present invention: a worm gear is welded to the bottom of the dynamic grinding disc through a support rod, and a worm is meshed with one side of the worm gear. One end of the worm is connected with a servo motor through a coupling.

[0011] As a further scheme of the present invention: a loosening scraper is welded on the outer wall of one side of the fixing plate, and the outer wall size of the loosening scraper is adapted to the inner wall size of the grinding utensil.

[0012] As a further scheme of the present invention: the servo motor, the driving motor and the telescopic cylinder are all connected to a PLC controller through signal lines, and the PLC controller is connected to an external power supply through a wire.

[0013] As a further scheme of the present invention: a fixed clamping groove is opened on the inner wall of the bottom of the sealed bottom cover, and a fixed clamping block is welded on the outer wall of the bottom of the grinding utensil. The fixed clamping groove and the fixed clamping block form a tight fit, and a shock-absorbing rubber pad is bonded to the outer wall of the bottom of the grinding utensil.

[0014] Compared with the prior art, the present invention provides a grinding device for stabilizing Pt on the surface of a carrier after high-temperature calcination, and has the following beneficial effects:

[0015] 1. The grinding device after high-temperature calcination of the present design, when grinding the carrier, utilizes the mutual cooperation of the static grinding disc and the dynamic grinding disc to continuously rotate and grind, which can effectively conduct rough grinding processing on the carrier, and the carrier particles that fall off after grinding directly gather inside the grinding vessel at the bottom, facilitating collection and processing.

[0016] 2. The grinding device after high-temperature calcination of the present design, after conducting preliminary grinding processing on the carrier particles, in order to further improve the grinding effect, utilizes the telescopic cylinder to continuously drive the grinding block for impact extrusion processing, thereby conducting extrusion processing on the carrier particles, and during the extrusion process, utilizes the driving motor to drive the extruded grinding block to rotate, thereby being able to further improve the overall grinding effect.

[0017] 3. The grinding device after high-temperature calcination of the present design, to avoid the ground particles being too small and causing the ground carrier to accumulate and harden, thereby utilizes the driving motor to drive the loosening scraper on the side to rotate, thereby being able to loosen the extruded and hardened carrier particles to improve the subsequent extrusion grinding processing effect.

[0018] The parts not involved in this device are the same as the prior art or can be implemented using the prior art. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of a grinding device after high-temperature calcination for stabilizing Pt on the surface of a carrier proposed by the present utility model;

[0020] Figure 2 It is a side view of the overall disassembled structure of a grinding device after high-temperature calcination for stabilizing Pt on the surface of a carrier proposed by the present utility model;

[0021] Figure 3 It is a schematic diagram of the structure from the first perspective of a grinding device after high-temperature calcination for stabilizing Pt on the surface of a carrier proposed by the present utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of a grinding device after high-temperature calcination for stabilizing Pt on the surface of a carrier proposed by the present utility model.

[0023] In the figure: 1, grinding tank body; 2, support leg; 3, sealed bottom cover; 4, grinding vessel; 5, sealed top cover; 6, static grinding disc; 7, grinding groove; 8, feeding pipe; 9, feed hopper; 10, annular sliding groove; 11, arc-shaped slider; 12, dynamic grinding disc; 13, grinding convex block; 14, worm gear; 15, worm; 16, servo motor; 17, driving motor; 18, fixing plate; 19, telescopic cylinder; 20, grinding block; 21, loosening scraper. Detailed Description of the Invention

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0025] Embodiment 1:

[0026] A grinding device after high-temperature calcination for stabilizing Pt on the surface of a carrier. This embodiment is based on plastic products with a density greater than that of water. In order to achieve the cleaning of impurities, as Figures 1-4 shown, it includes a grinding tank body 1 with support legs 2 welded around the bottom. A sealed bottom cover 3 is screwed on the outer wall of the bottom of the grinding tank body 1, and a grinding vessel 4 is arranged at the bottom of the grinding tank body 1. The top of the grinding tank body 1 is fixed with a sealed top cover 5 through a snap lock, and a static grinding disc 6 is fixed at the center of the bottom of the sealed top cover 5. A dynamic grinding disc 12 is arranged at the bottom of the static grinding disc 6, and arc-shaped sliders 11 are welded on the outer wall of the periphery of the dynamic grinding disc 12. The arc-shaped sliders 11 are slidably inserted into the inner wall of the annular chute 10. A driving motor 17 is fixed at the center of the middle part of the grinding tank body 1 through bolts, and a fixing plate 18 is welded on the output shaft of the driving motor 17. A telescopic cylinder 19 is fixed on the outer wall of the bottom of the fixing plate 18 through bolts, and a grinding block 20 is arranged at the piston rod of the telescopic cylinder 19;

[0027] When grinding the carrier, by using the mutual cooperation of the static grinding disc 6 and the dynamic grinding disc 12 and continuously rotating for grinding, the carrier can be effectively subjected to rough grinding processing, and the carrier particles that fall off after grinding directly gather inside the grinding vessel 4 at the bottom, which is convenient for collection and processing.

[0028] A positioning groove is opened at the center of the inner wall of the top of the sealed bottom cover 3, and the size of the positioning groove is adapted to that of the grinding vessel 4. The diameter size of the grinding vessel 4 is adapted to the inner wall size of the grinding tank body 1. A grinding groove 7 is opened on the outer wall of the bottom of the static grinding disc 6, and a grinding convex block 13 is welded on the outer wall of the top of the dynamic grinding disc 12. The size of the grinding convex block 13 is adapted to the inner wall size of the grinding groove 7;

[0029] One side inner wall at the top of the grinding groove 7 of the static grinding disc 6 is communicated with a feeding pipe 8, and a feeding hopper 9 is welded on the outer wall of the top of the feeding pipe 8.

[0030] A worm gear 14 is welded to the bottom of the dynamic grinding disc 12 through a support rod, and a worm 15 is meshed with one side of the worm gear 14. One end of the worm 15 is connected with a servo motor 16 through a coupling;

[0031] After the initial grinding process of the carrier particles, in order to further improve the grinding effect, the telescopic cylinder 19 is used to continuously drive the grinding block 20 to perform impact extrusion treatment, thereby extruding the carrier particles. And during the extrusion process, the driving motor 17 is used to drive the grinding block 20 for extrusion to rotate, so as to further improve the overall grinding effect.

[0032] When this embodiment is used, first, the moving grinding disc 12 connected with the arc-shaped slider 11 is slidably arranged inside the annular chute 10, then the annular chute 10 is fixed inside the grinding tank body 1, and then the sealing top cover 5 is fixed on the top of the grinding tank body 1. And the static grinding disc 6 is aligned above the moving grinding disc 12, and the grinding vessel 4 is arranged on the inner wall of the bottom of the grinding tank body 1. After the assembly process is completed, the carrier to be ground is placed into the feeding hopper 9, so that the carrier enters the grinding groove 7 inside the static grinding disc 6 through the feeding pipe 8. At this time, the servo motor 16 is started, so as to drive the moving grinding disc 12 to continuously rotate, so that the carrier inside can be fully ground. The ground particles leave from the gap between the moving grinding disc 12 and the static grinding disc 6 and fall into the grinding vessel 4 at the bottom. At this time, in order to further improve the grinding effect, the telescopic cylinder 19 is used to drive the grinding block 20 to continuously impact and extrude the carrier for impact grinding. And in order to improve the grinding effect, when the grinding block 20 is extruded on the inner wall of the bottom of the grinding vessel 4, the driving motor 17 is started, and the driving motor 17 is used to drive the grinding block 20 to continuously rotate, so as to complete the rotation extrusion treatment, which can greatly improve the grinding effect. After grinding is completed, the bottom sealing cover 3 is rotated and opened, and the grinding vessel 4 can be taken out.

[0033] Embodiment 2:

[0034] A grinding device for stabilizing Pt on the surface of a carrier after high-temperature calcination, as Figures 1-4 shown, the following supplements are made in this embodiment on the basis of Embodiment 1: A loosening scraper 21 is welded on the outer wall of one side of the fixing plate 18, and the outer wall size of the loosening scraper 21 is adapted to the inner wall size of the grinding vessel 4. The servo motor 16, the driving motor 17 and the telescopic cylinder 19 are all connected to a PLC controller through signal lines, and the PLC controller is connected to an external power supply through a wire. A fixing card slot is opened on the inner wall of the bottom of the sealing bottom cover 3, and a fixing block is welded on the outer wall of the bottom of the grinding vessel 4. The fixing card slot and the fixing block form a tight fit, and a shock-absorbing rubber pad is adhered to the outer wall of the bottom of the grinding vessel 4;

[0035] When this embodiment is used, in order to prevent the ground particles from being too small and causing the ground carrier to accumulate together to form hardening, the driving motor 17 is used to drive the loosening scraper 21 on the side to rotate, so that the extruded and hardened carrier particles can be loosened to improve the subsequent extrusion grinding processing effect.

[0036] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A grinding device for stabilizing the Pt on the surface of a carrier after high temperature calcination, comprising a grinding tank body (1) with supporting legs (2) welded around the bottom, characterized in that: The bottom outer wall of the grinding tank body (1) is screwed with a sealed bottom cover (3), and a grinding vessel (4) is arranged at the bottom of the grinding tank body (1). The top of the grinding tank body (1) is fixed with a sealed top cover (5) by a buckle lock, and a static grinding disc (6) is fixed at the bottom axis of the sealed top cover (5). A dynamic grinding disc (12) is arranged at the bottom of the static grinding disc (6), and arc-shaped sliders (11) distributed at equal distances are welded on the outer walls around the dynamic grinding disc (12), and the arc-shaped sliders (11) are slidably inserted in the inner wall of the annular slide groove (10). A driving motor (17) is fixed at the center of the middle of the grinding tank body (1) by bolts, and a fixing plate (18) is welded to the output shaft of the driving motor (17), a telescopic cylinder (19) is fixed to the outer wall of the bottom of the fixing plate (18) by bolts, and a grinding block (20) is arranged at the piston rod of the telescopic cylinder (19).

2. A grinding device for stabilizing the surface Pt of a carrier after high temperature calcination according to claim 1, characterized in that: A positioning groove is provided at the center of the top inner wall of the sealed bottom cover (3), and the size of the positioning groove matches the size of the grinding vessel (4), and the diameter of the grinding vessel (4) matches the size of the inner wall of the grinding tank body (1).

3. The grinding device for stabilizing the Pt on the carrier surface after high temperature calcination according to claim 1, characterized in that: A grinding groove (7) is provided on the bottom outer wall of the static grinding disc (6), and a grinding protrusion (13) is welded on the top outer wall of the dynamic grinding disc (12), wherein the size of the grinding protrusion (13) is adapted to the size of the inner wall of the grinding groove (7).

4. A grinding device for stabilizing the surface Pt of a carrier after high temperature calcination according to claim 3, characterized in that: The inner wall of one side of the top of the grinding groove (7) of the static grinding disc (6) is connected to a material injection pipe (8), and a material feed hopper (9) is welded to the outer wall of the top of the material injection pipe (8).

5. A grinding device for stabilizing the surface Pt of a carrier after high temperature calcination according to claim 4, characterized in that: A worm wheel (14) is welded to the bottom of the movable grinding disc (12) via a support rod, and a worm (15) is meshed on one side of the worm wheel (14), and one end of the worm (15) is connected to a servo motor (16) via a coupling.

6. The grinding device for stabilizing the Pt on the carrier surface after high temperature calcination according to claim 1, characterized in that: A loose scraper (21) is welded to an outer wall of one side of the fixed plate (18), and the outer wall size of the loose scraper (21) is matched with the inner wall size of the grinding vessel (4).

7. A grinding device for stabilizing the surface Pt of a carrier after high temperature calcination according to claim 5, characterized in that: The servo motor (16), the drive motor (17) and the telescopic cylinder (19) are all connected to a PLC controller via signal lines, and the PLC controller is connected to an external power source via a wire.

8. The grinding device for stabilizing the Pt on the carrier surface after high temperature calcination according to claim 2, characterized in that: The bottom inner wall of the sealed bottom cover (3) is provided with a fixing slot, and the bottom outer wall of the grinding vessel (4) is welded with a fixing block, the fixing slot and the fixing block form a tight fit, and a shock-absorbing rubber pad is bonded to the bottom outer wall of the grinding vessel (4).

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