Denitration catalyst mixing device

Abstract

The utility model belongs to the technical field of catalyst mixing devices, and particularly relates to a denitration catalyst mixing device. The denitration catalyst mixing device comprises an auxiliary material preparation device, a double-helix mixer and a mixing device, the auxiliary material preparation device is connected with the mixing device, the double-helix mixer is connected with the mixing device, a dispersing agent feeding hopper is arranged at the upper end of the auxiliary material preparation device, the dispersing agent feeding hopper is arranged on a bearing dispersing block, and the bearing dispersing block is connected with the double-helix mixer. The bearing dispersion block is arranged on a body of the auxiliary material preparation device, a dispersion shaft is arranged on the bearing dispersion block, a fixed shaft is arranged in the auxiliary material preparation device to form a three-way material channel, a solution feeding pipe is arranged on the body of the auxiliary material preparation device, the solution feeding pipe is provided with an atomizer, and the atomizer corresponds to the material channel. And a stirring shaft is sleeved in the fixed shaft. The denitration catalyst mixing device provided by the utility model realizes rapid and uniform mixing of raw materials, and improves the preparation efficiency and the catalyst quality.

Description

Technical Field

[0001] The utility model belongs to the technical field of catalyst mixing devices, and in particular relates to a denitration catalyst mixing device. Background Art

[0002] In the field of environmental protection, the preparation of denitrification catalysts is a crucial technology, which is directly related to the removal efficiency of nitrogen oxides (NOx) from emission sources such as coal-fired power plants and industrial boilers. However, the traditional denitrification catalyst mixing method faces many challenges, which seriously affects the preparation efficiency and final performance of the catalyst.

[0003] First, the mixing efficiency of traditional mixing methods is generally low. Due to the large differences in the physical and chemical properties of catalyst raw materials, traditional mixing methods often find it difficult to achieve sufficient mixing of raw materials in a short period of time. This not only prolongs the preparation cycle, but also increases energy consumption and production costs.

[0004] Secondly, the mixing uniformity of traditional mixing methods is also insufficient. Uneven mixing will lead to uneven distribution of catalyst activity, which in turn affects its denitrification efficiency and service life. Especially when dealing with high-viscosity and high-solid content raw materials, traditional mixing methods are more prone to agglomeration and stratification, further reducing the mixing quality.

[0005] In addition, traditional mixing methods also have the problem of high energy consumption. Due to the need for long-term, high-intensity stirring and mixing, traditional equipment often consumes a lot of energy, which is not conducive to energy conservation, emission reduction and sustainable development.

[0006] In order to solve the above problems, researchers have been exploring more efficient and uniform mixing methods. In recent years, with the continuous development of materials science and chemical technology, some new mixing technologies and equipment have emerged. These new technologies and equipment have shown great potential in the field of catalyst preparation and provide new solutions for the efficient mixing of denitrification catalysts.

[0007] However, despite these advances, existing mixing methods still have some limitations, such as complex equipment, difficult operation, and high cost. Therefore, developing a denitrification catalyst mixing device that is both efficient and economical and suitable for large-scale production is still an important issue that needs to be solved in the current environmental protection technology field. Utility Model Content

[0008] The technical problem to be solved by the utility model is to overcome the above-mentioned defects in the prior art and provide a denitration catalyst mixing device, which realizes rapid and uniform mixing of raw materials through the structural design of an auxiliary material mixer and a mixing device, thereby improving preparation efficiency and catalyst quality.

[0009] The denitration catalyst mixing device described in the utility model comprises an auxiliary material mixer, a double-screw mixer, and a mixing device. The material outlet of the auxiliary material mixer is connected to the mixing device, and the material outlet of the double-screw mixer is connected to the mixing device. A dispersant feeding funnel is arranged at the upper end of the auxiliary material mixer, and the dispersant feeding funnel is arranged on a bearing dispersion block, and the bearing dispersion block is arranged on the body of the auxiliary material mixer. A rotatable dispersion shaft is arranged on the bearing dispersion block, and a fixed shaft is arranged inside the auxiliary material mixer. A three-way material channel is formed between the bearing dispersion block, the dispersion shaft, and the fixed shaft. A solution feeding pipe is arranged on the auxiliary material mixer body, and an atomizer is arranged at one end of the solution feeding pipe, and the atomizer corresponds to the three-way material channel. A stirring shaft is arranged inside the fixed shaft.

[0010] Preferably, the stirring shaft is provided with stirring wings.

[0011] Preferably, the stirring shaft is connected to a driving device.

[0012] Preferably, the solution feed pipe is provided with a control valve, and the solution feed pipe and the atomizer are provided with two sets, respectively corresponding to the material channels forming the three-way connection.

[0013] Preferably, a spiral stirring shaft is provided inside the mixing device, and a power source is connected to the spiral stirring shaft.

[0014] Preferably, a 1# stirring shaft and a 2# stirring shaft are provided at the bottom of the mixing device.

[0015] Further preferably, the 1# stirring shaft and the 2# stirring shaft are both tree-like stirring shafts.

[0016] Preferably, a feed port is provided on the auxiliary material dispenser body.

[0017] The auxiliary material dispenser of the utility model is designed with a material outlet, which is directly connected to the mixing device. A dispersant feeding funnel is arranged at its upper end, and the funnel is mounted on a load-bearing dispersing block, and the load-bearing dispersing block is fixed to the auxiliary material dispenser body. A rotatable dispersing shaft is mounted on the load-bearing dispersing block, forming a three-way material channel with the fixed shaft and the load-bearing dispersing block itself. A solution feed pipe is arranged on the auxiliary material dispenser body, and an atomizer is mounted at one end thereof, and the atomizer is directly opposite to the material channel to realize atomized injection of the solution. A control valve is mounted on the solution feed pipe, and the solution feed pipe and the atomizer are configured as a double set, corresponding to two material channels respectively, to ensure precise control. In addition, the auxiliary material dispenser body is also provided with a feed port for adding solid raw materials.

[0018] The stirring system of the auxiliary material mixer of the utility model is a stirring shaft sleeved in a fixed shaft, and a stirring wing is arranged on the stirring shaft to enhance the mixing effect of the materials in the auxiliary material mixer. The stirring shaft is driven to rotate by a driving device to provide a driving force.

[0019] The material outlet of the double-screw mixer of the utility model is also connected to the mixing device, which is used to further refine the mixing process and improve the mixing uniformity. A spiral stirring shaft is arranged inside the mixing device, and the spiral stirring shaft can be equipped with a power supply to drive its rotation to enhance the flow and mixing of the material in the device. The bottom of the mixing device is designed with a 1# stirring shaft and a 2# stirring shaft, both of which are tree-like stirring shafts. Through their unique branching structure, they can effectively break the material agglomeration and improve the mixing efficiency.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] (1) The denitration catalyst mixing device of the utility model realizes rapid and uniform mixing of raw materials through the synergistic effect of the dispersant feeding funnel, atomizer, stirring shaft and double-screw mixer, thereby significantly improving the mixing efficiency.

[0022] (2) The denitration catalyst mixing device of the utility model has a three-way material channel design with double sets of solution feed pipes and atomizers, which ensures accurate control and uniform distribution of the solution and improves the mixing quality.

[0023] (3) The denitration catalyst mixing device of the utility model has an optimized stirring system design, which reduces energy consumption, improves mixing efficiency and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the denitration catalyst mixing device of the utility model.

[0025] In the figure: 1. auxiliary material dispenser; 11. dispersant feeding funnel; 12. load-bearing dispersing block; 13. dispersing shaft; 14. feeding port; 15. stirring shaft; 16. stirring wing; 17. driving device; 18. fixed shaft; 2. double screw mixer;

[0026] 3. Mixing device; 31. Spiral stirring shaft; 32. 1# stirring shaft; 33. 2# stirring shaft; 34. Power supply;

[0027] 4. Solution feed pipe; 5. Control valve; 6. Atomizer. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with specific embodiments.

[0029] Other internal structures mentioned in the present invention but not described in detail are all structures of existing devices, and those skilled in the art can select suitable operating structural devices according to the purpose of the present invention.

[0030] like Figure 1 As shown, the denitration catalyst mixing device comprises an auxiliary material compounder 1, a double-screw mixer 2, and a mixing device 3. The material outlet of the auxiliary material compounder 1 is connected to the mixing device 3, and the material outlet of the double-screw mixer 2 is connected to the mixing device 3. A dispersant feeding funnel 11 is provided at the upper end of the auxiliary material compounder 1, and the dispersant feeding funnel 11 is arranged on a bearing dispersion block 12, and the bearing dispersion block 12 is arranged on the body of the auxiliary material compounder 1. A rotatable dispersion shaft 13 is provided on the bearing dispersion block 12. A fixed shaft 18 is provided inside the auxiliary material compounder 1, and a three-way material channel is formed between the bearing dispersion block 12, the dispersion shaft 13, and the fixed shaft 18. A solution feed pipe 4 is provided on the body of the auxiliary material compounder 1, and an atomizer 6 is provided at one end of the solution feed pipe 4. The atomizer 6 corresponds to the three-way material channel, and a stirring shaft 15 is provided inside the fixed shaft 18.

[0031] The stirring shaft 15 is provided with stirring wings 16 .

[0032] The stirring shaft 15 is connected to a driving device 17 .

[0033] The solution feed pipe 4 is provided with a control valve 5, and the solution feed pipe 4 and the atomizer 6 are provided with two sets, respectively corresponding to the material channels forming the three-way connection.

[0034] The mixing device 3 is provided with a spiral stirring shaft 31 inside, and the spiral stirring shaft 31 is connected to a power source 34 .

[0035] The bottom of the mixing device 3 is provided with a 1# stirring shaft 32 and a 2# stirring shaft 33 .

[0036] The 1# stirring shaft 32 and the 2# stirring shaft 33 are both tree-shaped stirring shafts.

[0037] The auxiliary material dispenser 1 is provided with a feed inlet 14 on its body.

[0038] The denitration catalyst mixing device of the utility model comprises the following steps when working:

[0039] Step 1: Raw material preparation and preliminary mixing:

[0040] First, accurately weigh the required main ingredients and auxiliary ingredients according to the pre-designed ratio.

[0041] The weighed main ingredients are added into the double-screw mixer 2 and preliminary mixed for 2.5 hours to ensure uniform distribution of the main ingredients.

[0042] In the auxiliary material preparer 1, the auxiliary solution is accurately prepared through the dispersant feeding funnel 11 and the solution feeding pipe 4, including uniformly dispersing the glass fiber in the dispersant solution and dissolving the active metal oxide in the alkaline liquid.

[0043] Step 2: Mixing and refining the main and auxiliary materials:

[0044] The preliminarily mixed dry powder main material is discharged into the mixing device 3 through the material outlet of the double-screw mixer 2.

[0045] At the same time, the prepared auxiliary solution is discharged into the mixing device 3 through the material outlet of the auxiliary material preparer 1 .

[0046] The spiral stirring shaft 31 and the 1# stirring shaft 32 and the 2# stirring shaft 33 in the mixing device 3 are started, and the main material and the auxiliary material are fully mixed and refined for 2 hours by utilizing the shear force and stirring force generated by the rotation.

[0047] After the mixing is completed, turn off the power supply and valve of the equipment, open the discharge port of the mixing device 3, discharge the mixed denitration catalyst, and carry out subsequent drying, molding and other treatments.

[0048] Through the above steps, the denitration catalyst mixing device can be used to efficiently prepare a catalyst product with excellent performance.

Claims

1. A denitration catalyst mixing device, characterized in that: The invention comprises an auxiliary material compounder (1), a double-screw mixer (2), and a mixing device (3), wherein the material outlet of the auxiliary material compounder (1) is connected to the mixing device (3), the material outlet of the double-screw mixer (2) is connected to the mixing device (3), the upper end of the auxiliary material compounder (1) is provided with a dispersant feeding funnel (11), the dispersant feeding funnel (11) is arranged on a bearing dispersing block (12), the bearing dispersing block (12) is arranged on the body of the auxiliary material compounder (1), and the bearing dispersing block (12) is provided with a rotatable dispersion shaft (13), the interior of the auxiliary material preparation device (1) is provided with a fixed shaft (18), a three-way material passage is formed between the load-bearing dispersion block (12), the dispersion shaft (13) and the fixed shaft (18), the auxiliary material preparation device (1) body is provided with a solution feed pipe (4), one end of the solution feed pipe (4) is provided with an atomizer (6), the atomizer (6) corresponds to the three-way material passage, and the fixed shaft (18) is provided with a stirring shaft (15) in an inner sleeve.

2. The denitration catalyst mixing device according to claim 1, characterized in that: The stirring shaft (15) is provided with stirring wings (16).

3. The denitration catalyst mixing device according to claim 1, characterized in that: The stirring shaft (15) is connected to a driving device (17).

4. The denitration catalyst mixing device according to claim 1, characterized in that: The solution feed pipe (4) is provided with a control valve (5), and the solution feed pipe (4) and the atomizer (6) are provided with two sets, respectively corresponding to the material channels forming the three-way connection.

5. The denitration catalyst mixing device according to claim 1, characterized in that: The mixing device (3) is provided with a spiral stirring shaft (31) inside, and the spiral stirring shaft (31) is connected to a power source (34).

6. The denitration catalyst mixing device according to claim 1, characterized in that: A #1 stirring shaft (32) and a #2 stirring shaft (33) are arranged at the bottom of the mixing device (3).

7. The denitration catalyst mixing device according to claim 6, characterized in that: The 1# stirring shaft (32) and the 2# stirring shaft (33) are both tree-shaped stirring shafts.

8. The denitration catalyst mixing device according to claim 1, characterized in that: The auxiliary material dispenser (1) is provided with a feed inlet (14) on its body.

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