Cotton stirring and adding device in SCR catalyst production process

Abstract

The utility model discloses an SCR catalyst production process cotton stirring and adding device which comprises a pulper, a pulp weighing machine and a mixing machine, the pulper is used for making a whole piece of placed pore-forming fiber cotton into cotton pulp, a first pulp conveying pipeline is arranged between the pulper and the pulp weighing machine, and a second pulp conveying pipeline is arranged between the pulper and the pulp weighing machine. A first pulp conveying pipeline is arranged between the pulper and the mixing machine, the first pulp conveying pipeline is used for conveying cotton pulp prepared by the pulper into a pulp weighing machine, the pulp weighing machine is used for weighing the cotton pulp with set weight, and a second pulp conveying pipeline is arranged between the pulp weighing machine and the mixing machine and is used for conveying the weighed cotton pulp into the mixing machine. According to the utility model, the large pore-forming fiber cotton piece and the deionized water which are proportioned quantitatively are mixed in the pulper to prepare the cotton pulp, the cotton pulp is fully defibered to form a single fiber under the action of vortex circulation in the pulper, so that the length of the fiber is not influenced, and as the cotton in the cotton pulp added into the mixer is in the shape of a single fiber, the quality of the fiber is improved. The forming of the SCR honeycomb catalyst is facilitated, and the production efficiency is improved.

Description

[Technical field]

[0001] The utility model belongs to the technical field of environmental protection catalyst production, and specifically relates to an SCR honeycomb catalyst production technology. [Background technology]

[0002] SCR honeycomb catalyst is a catalyst used in the SCR (selective catalytic reduction) denitrification system of power plants. In the SCR reaction, it is a substance that causes the reducing agent to selectively react with nitrogen oxides in the flue gas at a certain temperature. In the production process of SCR honeycomb catalyst, a cotton component needs to be added. In the existing technology, workers generally tear large cotton pieces into 10*10cm pieces by hand, and then use deionized water to inject the cotton foam into the mixer. However, the existing method has the following disadvantages:

[0003] 1. Manual tearing of cotton pieces takes up a lot of manpower time;

[0004] 2. Cotton wool will be scattered during the shredding process, which poses a safety hazard;

[0005] 3. The cotton dispersed by water will appear cloud-like and cannot be dispersed evenly;

[0006] Of course, some people also use carding machines to tear cotton pieces, but the carding machines will destroy the fiber length of the cotton itself during use, which is not conducive to the production of SCR honeycomb catalysts. [Contents of the utility model]

[0007] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a cotton stirring and adding device in the SCR catalyst production process, so as to solve the problems of uneven cotton dispersion and low adding efficiency in the prior art.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] The cotton stirring and adding device for the SCR catalyst production process comprises a pulper, a slurry weighing machine and a mixer, wherein the pulper is used to make cotton pulp from a whole piece of pore-forming fiber cotton, a first slurry delivery pipeline is provided between the pulper and the slurry weighing machine, the first slurry delivery pipeline is used to deliver the cotton pulp made by the pulper into the slurry weighing machine, the slurry weighing machine is used to weigh the cotton pulp of a set weight, a second slurry delivery pipeline is provided between the slurry weighing machine and the mixer, the second slurry delivery pipeline is used to deliver the weighed cotton pulp into the mixer.

[0010] Preferably, the pulper is cylindrical, a feeding port is provided on the top of the pulper, the feeding port is connected to a feeding cover, a first pulp outlet is provided at the bottom of the pulper, the first pulp outlet is connected to a first pulp delivery pipeline, a pulping knife shaft is vertically arranged in the pulper, and pulping blades are installed on the pulping knife shaft.

[0011] Preferably, a pulping motor is provided at the bottom side of the pulper, a reducer is provided below the bottom of the pulper, the pulping motor is connected to the reducer, and the reducer is connected to the pulping knife shaft.

[0012] Preferably, the slurry weighing machine is cylindrical, and is provided with a weighing component. The slurry weighing machine is provided with a second slurry inlet at the top and a second slurry outlet at the bottom, and the second slurry outlet is connected to a second slurry delivery pipeline.

[0013] Preferably, a stirring blade shaft is vertically arranged in the slurry weighing machine, a stirring blade is installed on the stirring blade shaft, a stirring motor is installed on the top of the slurry weighing machine, and the stirring motor is connected to the stirring blade shaft.

[0014] Preferably, a bearing seat is provided at the bottom of the slurry weighing machine, and the lower end of the stirring blade shaft is rotatably supported on the bearing seat.

[0015] Preferably, both the first slurry delivery pipeline and the second slurry delivery pipeline are connected to slurry delivery pumps.

[0016] The utility model adopts the above technical solution and has the following beneficial effects:

[0017] A quantitatively proportioned large-scale pore-forming fiber cotton sheet and deionized water are mixed in a pulper to form cotton pulp. Under the action of eddy current circulation in the pulper, the cotton pulp is fully loosened to form single fibers, ensuring that the length of the fiber itself is not affected. After the pulping is completed, the pulp is weighed to accurately obtain the required weight of cotton pulp, which is then injected into the mixer.

[0018] Compared with the prior art, workers only need to add large pieces of pore-forming fiber cotton sheets into the pulper, which saves labor; and the fiber length of the cotton will not be damaged during the pulping and pulping process.

[0019] Moreover, since the cotton in the cotton pulp added to the mixer is in the form of single fibers, it helps in the molding of the SCR honeycomb catalyst and improves production efficiency.

[0020] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings.

Brief Description of the Drawings

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the cotton stirring and adding device in the SCR catalyst production process of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of a pulper;

[0024] Figure numerals: pulper 1, feeding cover 11, first pulp outlet 12, pulping motor 13, reducer 14, first pulp conveying pipeline 15, slurry weighing machine 2, stirring blade shaft 21, stirring blade 22, stirring motor 23, bearing seat 24, second pulp inlet 25. [Specific implementation method]

[0025] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0026] Those skilled in the art will appreciate that, in the absence of conflict, the features in the following embodiments and implementations may be combined with each other.

[0027] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. For example, the following words indicating orientation or positional relationship, such as "upper", "lower", "inner", "outer", etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device / element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0029] In addition, in the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Reference Figure 1 and Figure 2 As shown, this embodiment provides a cotton stirring and adding device for the SCR catalyst production process, including a pulper 1, a slurry weighing machine 2 and a mixer (not shown in the figure). The pulper 1 is used to make cotton pulp from the whole piece of pore-forming fiber cotton, a first slurry delivery pipeline 15 is provided between the pulper 1 and the slurry weighing machine 2, the first slurry delivery pipeline 15 is used to deliver the cotton pulp made by the pulper 1 to the slurry weighing machine 2, the slurry weighing machine 2 is used to weigh the cotton pulp of a set weight, a second slurry delivery pipeline is provided between the slurry weighing machine 2 and the mixer, the second slurry delivery pipeline is used to deliver the weighed cotton pulp to the mixer.

[0031] The technical solution of this embodiment is to mix a quantitatively proportioned large-scale pore-forming fiber cotton sheet and deionized water in a pulper to form cotton pulp. Under the action of vortex circulation in the pulper, the cotton pulp is fully disintegrated to form single fibers, ensuring that the length of the fiber itself is not affected. After the pulping is completed, the pulp is weighed to accurately obtain the required weight of cotton pulp, which is then injected into the mixer.

[0032] Compared with the prior art, workers only need to add large pieces of pore-forming fiber cotton sheets into the pulper, which saves labor; and the fiber length of the cotton will not be damaged during the pulping and pulping process.

[0033] Moreover, since the cotton in the cotton pulp added to the mixer is in the form of single fibers, it helps in the molding of the SCR honeycomb catalyst and improves production efficiency.

[0034] The specific structures of the pulper 1 and the slurry weighing machine 2 can refer to the prior art, and this embodiment only provides a brief description. The pulper 1 is cylindrical, and a feeding port is provided on the top of the pulper 1, and the feeding port is connected to a feeding cover 11. A first pulp outlet 12 is provided at the bottom of the pulper, and the first pulp outlet 12 is connected to a first slurry delivery pipeline 15. A pulping knife shaft is vertically arranged in the pulper, and a pulping blade is installed on the pulping knife shaft. A pulping motor 13 is provided on the side of the bottom of the pulper, and a reducer 14 is provided below the bottom of the pulper. The pulping motor 13 is connected to the reducer 14, and the reducer is connected to the pulping knife shaft. A whole piece of pore-forming fiber cotton is put in through the feeding port, and the pulping blades stir the liquid flow to generate vortex circulation in the pulper, so that the pore-forming fiber cotton is made into cotton pulp. The pulping time and pulping speed can be controlled by the stirring motor to fully disintegrate the cotton pulp and form a single fiber. The slurry weighing machine 2 is cylindrical and is provided with a weighing component. The upper part of the slurry weighing machine is provided with a second slurry inlet 25 and the lower part is provided with a second slurry outlet, and the second slurry outlet is connected to the second slurry delivery pipeline. A stirring blade shaft 21 is vertically arranged in the slurry weighing machine, and a stirring blade 22 is installed on the stirring blade shaft 21. A stirring motor 23 is installed on the top of the slurry weighing machine, and the stirring motor 23 is connected to the stirring blade shaft 21. A bearing seat 24 is provided at the bottom of the slurry weighing machine, and the lower end of the stirring blade shaft is rotatably supported on the bearing seat.

[0035] Furthermore, the first slurry delivery pipeline and the second slurry delivery pipeline are both connected to slurry delivery pumps, thereby ensuring that the slurry can be delivered quickly.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. The cotton stirring and adding device in the SCR catalyst production process is characterized by: It includes a pulper, a slurry weighing machine and a mixer. The pulper is used to make cotton pulp from a whole piece of pore-forming fiber cotton. A first slurry delivery pipeline is provided between the pulper and the slurry weighing machine. The first slurry delivery pipeline is used to deliver the cotton pulp made by the pulper into the slurry weighing machine. The slurry weighing machine is used to weigh cotton pulp of a set weight. A second slurry delivery pipeline is provided between the slurry weighing machine and the mixer. The second slurry delivery pipeline is used to deliver the weighed cotton pulp into the mixer.

2. The cotton stirring and adding device for the SCR catalyst production process according to claim 1, characterized in that: The pulper is cylindrical, and a feeding port is provided on the top of the pulper, and the feeding port is connected to a feeding cover. A first pulp outlet is provided at the bottom of the pulper, and the first pulp outlet is connected to a first pulp delivery pipeline. A pulping knife shaft is vertically arranged in the pulper, and a pulping blade is installed on the pulping knife shaft.

3. The cotton stirring and adding device for the SCR catalyst production process according to claim 2, characterized in that: A pulping motor is provided at the side of the bottom of the pulper, a speed reducer is provided below the bottom of the pulper, the pulping motor is connected to the speed reducer, and the speed reducer is connected to the pulping blade shaft.

4. The cotton stirring and adding device for the SCR catalyst production process according to claim 1, characterized in that: The slurry weighing machine is cylindrical and is provided with a weighing component. The upper part of the slurry weighing machine is provided with a second slurry inlet and the lower part is provided with a second slurry outlet. The second slurry outlet is connected to the second slurry delivery pipeline.

5. The cotton stirring and adding device for the SCR catalyst production process according to claim 4, characterized in that: A stirring blade shaft is vertically arranged in the slurry weighing machine, and a stirring blade is installed on the stirring blade shaft. A stirring motor is installed on the top of the slurry weighing machine, and the stirring motor is connected to the stirring blade shaft.

6. The cotton stirring and adding device for the SCR catalyst production process according to claim 5, characterized in that: A bearing seat is provided at the bottom of the slurry weighing machine, and the lower end of the stirring blade shaft is rotatably supported on the bearing seat.

7. The cotton stirring and adding device for the SCR catalyst production process according to claim 1, characterized in that: The first slurry delivery pipeline and the second slurry delivery pipeline are both connected to a slurry delivery pump.

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