Chemical catalyst feeding and mixing device
By combining the design of the auger and the stirring rod, the problem of catalyst agglomeration was solved, enabling efficient delivery and premixing of chemical catalysts and improving the uniformity and precision of mixing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG SHTAR SCI & TECH PETROCHEMICAL CO LTD
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-05
AI Technical Summary
In existing chemical catalyst feeding and mixing devices, catalyst agglomeration occurs during use, affecting the amount added and the catalytic effect.
The spiral conveyor of the auger, combined with the axial motion and the reverse rotation of the stirring rod, breaks up agglomerates and achieves premixing. The design of multiple feeding pipes meets the requirements of different catalytic reaction ratios.
This improved the catalyst's flowability and mixing uniformity, ensuring accurate feeding and effective mixing.
Smart Images

Figure CN224194657U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of chemical catalyst feeding and mixing devices, and more specifically, to a chemical catalyst feeding and mixing device. Background Technology
[0002] Catalysts are an important type of product in industry, used in the chemical processing of petrochemical products. They need to be mixed with raw materials. We propose a chemical catalyst feeding and mixing device.
[0003] Existing technology publication CN216678242U discloses a chemical catalyst feeding and mixing device. This device comprises a base, with a gantry frame fixedly mounted on top of the base. Several stabilizing rings are fixedly mounted on top of the gantry frame, and a storage tank is fixedly mounted inside the inner cavity of each stabilizing ring. A feed hopper is connected to the top of the storage tank, and a discharge pipe is connected to the bottom of the storage tank. A second solenoid valve is installed inside the discharge pipe. A mixing tank is fixedly mounted on top of the base and connected to the discharge pipe. An observation window is provided on the front of the mixing tank. A mixing motor is fixedly mounted on the top of the mixing tank, and a stirring rod is fixedly mounted on the output shaft of the mixing motor. A feed hopper is connected to the top of the left side of the mixing tank, and a discharge pipe is connected to the bottom of the left side of the mixing tank. A first solenoid valve is installed inside the discharge pipe. A heating box is fixedly installed on the right side of the top of the base. An air pump is fixedly installed on the bottom right side of the mixing box via a mounting base, and the output end of the air pump is connected to the mixing box via a pipe. The input end of the air pump is connected to a second air pipe, and the other end of the second air pipe is connected to the heating box. Several heating rods are arranged inside the heating box. A first air pipe is connected to the bottom right side of the heating box, and the other end of the first air pipe is connected to the mixing box. A door is movably connected to the front of the heating box via a hinge, and a handle is provided on the front of the door. A first pipe clamp is fixedly installed on the top right side of the heating box via a bracket, and the first pipe clamp is fixedly connected to the first air pipe. A second pipe clamp is fixedly installed on the top left side of the heating box via a bracket, and the second pipe clamp is fixedly connected to the second air pipe. A control switch is provided on the left side of the gantry frame, and a protective film is provided on the surface of the control switch.
[0004] Although the existing technical solutions described above can achieve the relevant beneficial effects through the existing technical structure, they still have the following drawbacks: When the device is in use, different catalysts are placed and fed through different storage tanks. However, during use, there is a problem of clumping and uneven feeding, which affects the amount added and results in poor catalytic effect.
[0005] In view of this, we propose a chemical catalyst feeding and mixing device. Utility Model Content
[0006] 1. Technical problems to be solved
[0007] The purpose of this application is to provide a chemical catalyst feeding and mixing device, which solves the technical problem in the above-mentioned background technology that when different catalysts are placed and fed through different storage tanks, clumping occurs and the feeding is not smooth, affecting the amount added and resulting in poor catalytic effect. The application achieves the desired technical effect.
[0008] 2. Technical Solution
[0009] This application provides a chemical catalyst feeding and mixing device, including...
[0010] The gantry frame, wherein a mixing bin is fixedly installed inside the gantry frame, comprising:
[0011] Storage tank, which is fixedly installed on the outer wall of the gantry frame;
[0012] The feeding and mixing pipe is connected to the storage tank through a solenoid valve body. The feeding and mixing pipe is equipped with an active conveying drive inside and a stirring component outside.
[0013] As an optional solution to the technical solution of this application, the active conveying drive includes a fixed cylinder fixedly installed at the inner end of the storage tank, an auger rotatably installed inside the feeding and mixing pipe, a connecting cylinder connected to the outside of the auger, the connecting cylinder being installed inside the fixed cylinder, a bevel gear A fixedly installed on the outer wall of the connecting cylinder, an intermediate bevel gear meshing with the outer wall of the bevel gear A, a motor coaxially fixedly installed on one side of the intermediate bevel gear, and the motor being installed inside a housing fixed to the outer wall of the fixed cylinder.
[0014] As an optional solution to the technical solution of this application, the auger is provided with a fixed shaft that rotates inside, and one end of the fixed shaft extends to the outside and is flush with the inner wall of the mixing box.
[0015] The outer wall of the fixed shaft is provided with a curved groove, and a cam is slidably disposed inside the curved groove. The cam is fixedly disposed on the inner wall of the auger.
[0016] As an optional solution to the technical solution of this application, two sliders are symmetrically fixedly arranged on the inner wall of the connecting cylinder, and the sliders are slidably connected to the grooves opened on the outer wall of the auger.
[0017] As an optional solution to the technical solution of this application, the stirring assembly includes a plurality of stirring rods fixedly disposed on the outer wall of the feeding and mixing tube, and a bevel gear B is fixedly disposed on the outer wall of the feeding and mixing tube, wherein the bevel gear B is meshed with the outer wall of the intermediate bevel gear.
[0018] The feeding and mixing pipes are provided in multiple ways.
[0019] By adopting the above technical solution, the auger's spiral conveyor and axial movement form a conveying and up-and-down contact, directly conveying the catalyst powder and other materials into the mixing box. Thus, when the catalyst clumps, it can be effectively conveyed and broken up, ensuring the material's flowability. Secondly, the synchronous reverse rotation of the feeding mixing pipe drives the stirring rod to improve the mixing effect, allowing the catalyst to be pre-mixed during the conveying process. Combined with the design of multiple feeding pipes, it can meet the requirements of different catalytic reaction ratios, thereby improving the feeding accuracy and ensuring the uniformity of mixing.
[0020] 3. Beneficial effects
[0021] One or more technical solutions provided in this application have at least the following technical effects or advantages:
[0022] This application utilizes the spiral conveyor and axial movement of an auger to directly transport catalytic powder and other materials into the mixing chamber through up-and-down contact. This allows for effective conveying and breaking up of agglomerated catalysts, ensuring material flowability. Furthermore, the synchronous reverse rotation of the feeding and mixing pipe drives the stirring rod to enhance the mixing effect, enabling the catalyst to be pre-mixed during the conveying process. Combined with the design of multiple feeding pipes, it can meet the requirements of different catalytic reaction ratios, thereby improving the feeding accuracy and ensuring the uniformity of mixing. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of a chemical catalyst feeding and mixing device disclosed in a preferred embodiment of this application;
[0024] Figure 2 This is a schematic diagram of the stirring assembly structure of a chemical catalyst feeding and mixing device disclosed in a preferred embodiment of this application;
[0025] Figure 3 This is an exploded view of the internal structure of the fixed cylinder of a chemical catalyst feeding and mixing device disclosed in a preferred embodiment of this application;
[0026] Figure 4 This is a split view of the active conveying drive structure of a chemical catalyst feeding and mixing device disclosed in a preferred embodiment of this application;
[0027] The following are the labels in the diagram: 1. Gantry frame; 2. Mixing box; 3. Storage tank; 4. Feeding and mixing pipe; 41. Fixed cylinder; 42. Connecting cylinder; 43. Screw conveyor; 44. Bevel gear A; 45. Intermediate bevel gear; 46. Motor; 47. Chassis; 401. Fixed shaft; 402. Curved groove; 403. Cam; 4001. Slider; 4002. Slide groove; 4100. Bevel gear B; 4200. Stirring rod. Detailed Implementation
[0028] The present application will be further described in detail below with reference to the accompanying drawings.
[0029] Reference Figures 1-4 This application provides a chemical catalyst feeding and mixing device, including...
[0030] Gantry frame 1, with a mixing box 2 fixedly installed inside, including:
[0031] Storage tank 3 is fixedly installed on the outer wall of gantry frame 1;
[0032] The feeding and mixing pipe 4 is connected to the storage tank 3 through the solenoid valve body. The feeding and mixing pipe 4 is equipped with an active conveying drive inside and a stirring component outside.
[0033] The active conveying drive includes a fixed cylinder 41 fixedly installed inside the storage tank 3, an auger 43 rotatably installed inside the feeding and mixing pipe 4, a connecting cylinder 42 connected to the outside of the auger 43, the connecting cylinder 42 being installed inside the fixed cylinder 41, a bevel gear A44 fixedly installed on the outer wall of the connecting cylinder 42, an intermediate bevel gear 45 meshing with the outer wall of the bevel gear A44, a motor 46 coaxially fixedly installed on one side of the intermediate bevel gear 45, and the motor 46 being installed inside a housing 47 fixed to the outer wall of the fixed cylinder 41.
[0034] The screw conveyor 43 has a fixed shaft 401 that rotates inside, with one end of the fixed shaft 401 extending to the outside and connecting with the inner wall of the mixing box 2.
[0035] A curved groove 402 is provided on the outer wall of the fixed shaft 401, and a cam 403 is slidably provided inside the curved groove 402. The cam 403 is fixedly provided on the inner wall of the auger 43.
[0036] Two sliders 4001 are symmetrically fixed on the inner wall of the connecting cylinder 42. The sliders 4001 are slidably connected to the grooves 4002 opened on the outer wall of the auger 43.
[0037] The mixing assembly includes multiple mixing rods 4200 fixedly disposed on the outer wall of the feeding mixing tube 4, and a bevel gear B4100 fixedly disposed on the outer wall of the feeding mixing tube 4, which meshes with the outer wall of the intermediate bevel gear 45.
[0038] Multiple feeding and mixing pipes 4 are provided.
[0039] The auger 43, with its spiral conveyor and axial movement, directly transports the catalyst powder and other materials into the mixing tank through up-and-down contact. This effectively conveys and breaks up agglomerates when they clump together, ensuring material flowability. Furthermore, the synchronous reverse rotation of the feeding mixing pipe 4 drives the stirring rod 4200 to improve the mixing effect, allowing the catalyst to be pre-mixed during the conveying process. Combined with the design of multiple feeding pipes, it can meet the requirements of different catalytic reaction ratios, thereby improving the feeding accuracy and ensuring the uniformity of mixing.
[0040] Working principle: In use, the catalyst stored in the storage tank 3 enters the feeding and mixing pipe 4 through a solenoid valve. The motor 46 drives the intermediate bevel gear 45 to rotate, simultaneously engaging bevel gears A44 and B4100. Bevel gear A44 drives the connecting cylinder 42 to rotate, causing the auger 43 to rotate within the feeding and mixing pipe 4. Its spiral blades push the catalyst axially. The fixed shaft 401 inside the auger 43 engages with the cam 403 through a curved groove 402. When the auger rotates, the cam 403 moves along the curved groove... The sliding of the groove 402 forces the fixed shaft 401 to generate periodic axial vibration, further breaking up catalyst agglomeration and improving the conveying effect. At the same time, the bevel gear B4100 drives the feeding mixing pipe 4 to rotate, which drives the stirring rod 4200 on the outer wall to radially stir the catalyst in the pipe. The slider 4001 on the inner wall of the connecting cylinder 42 and the sliding groove 4002 on the outer wall of the auger 43 form a sliding guide to ensure that the auger remains stable when rotating. The crushed catalyst enters the mixing box 2. Multiple sets of feeding mixing pipes 4 can simultaneously convey different catalysts to achieve multi-component mixing.
Claims
1. A chemical catalyst feeding and mixing device, comprising a gantry frame (1), wherein a mixing tank (2) is fixedly installed inside the gantry frame (1), characterized in that: Include: Storage tank (3), which is fixedly installed on the outer wall of the gantry frame (1); The feeding and mixing pipe (4) is connected to the storage tank (3) through the solenoid valve body. The feeding and mixing pipe (4) is equipped with an active conveying drive inside and a stirring component outside.
2. The chemical catalyst feeding and mixing device according to claim 1, characterized in that: The active conveying drive includes a fixed cylinder (41) fixedly installed at the inner end of the storage tank (3), an auger (43) rotatably installed inside the feeding and mixing pipe (4), a connecting cylinder (42) connected to the outside of the auger (43), the connecting cylinder (42) being installed inside the fixed cylinder (41), a bevel gear A (44) fixedly installed on the outer wall of the connecting cylinder (42), an intermediate bevel gear (45) meshing with the outer wall of the bevel gear A (44), a motor (46) being coaxially fixedly installed on one side of the intermediate bevel gear (45), and the motor (46) being installed inside a housing (47) fixed to the outer wall of the fixed cylinder (41).
3. The chemical catalyst feeding and mixing device according to claim 2, characterized in that: The auger (43) is rotatably provided with a fixed shaft (401), one end of which extends to the outside and is flush with the inner wall of the mixing box (2); The outer wall of the fixed shaft (401) is provided with a curved groove (402), and a cam (403) is slidably arranged inside the curved groove (402). The cam (403) is fixedly arranged on the inner wall of the auger (43).
4. The chemical catalyst feeding and mixing device according to claim 3, characterized in that: Two sliders (4001) are symmetrically fixed on the inner wall of the connecting cylinder (42), and the sliders (4001) are slidably connected to the grooves (4002) opened on the outer wall of the auger (43).
5. The chemical catalyst feeding and mixing device according to claim 4, characterized in that: The stirring assembly includes multiple stirring rods (4200) fixedly disposed on the outer wall of the feeding mixing tube (4), and a bevel gear B (4100) fixedly disposed on the outer wall of the feeding mixing tube (4), the bevel gear B (4100) meshing with the outer wall of the intermediate bevel gear (45); The feeding and mixing pipe (4) is provided in multiple ways.