SCR (Selective Catalytic Reduction) catalyst base material production device

Abstract

The utility model discloses an SCR (Selective Catalytic Reduction) catalyst base material production device and relates to the related technical field of SCR catalyst production. The device comprises a heat preservation jacket, a limiting plate, a rotating plate, an exhaust pipe and an air conveying pipe, the limiting plate is arranged at one end of the heat preservation jacket, the exhaust pipe is fixed to the upper portion in the limiting plate in a penetrating mode, a rotating column is fixed to the top of the limiting plate, the rotating plate is fixed to the top end of the rotating column, and a material groove is fixed to the end, close to the heat preservation jacket, of the limiting plate; the end, away from the heat preservation outer sleeve, of the heat preservation outer sleeve fixedly communicates with a conveying shell, the end, away from the heat preservation outer sleeve, of the conveying shell fixedly communicates with an air conveying pipe, and a material groove is fixed to the side, close to the heat preservation outer sleeve, of the limiting plate. Through the arrangement of the heat preservation outer sleeve, the limiting plate, the rotating plate, the exhaust pipe and the gas conveying pipe, the problems that in the SCR catalyst iron oxide base material production process, the cooling time is long, and the cost is high due to direct oxygen oxidation are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to SCR catalyst production, and in particular relates to an SCR catalyst substrate production device. Background Art

[0002] SCR catalysts are key materials used in selective catalytic reduction technology. They can promote the chemical reaction between reducing agents (such as ammonia or urea) and nitrogen oxides (NOx) in flue gas within a certain temperature range, converting them into nitrogen (N2) and water vapor (H2O), thereby reducing air pollution. The efficiency of SCR catalysts is directly related to the performance of the denitrification system and is a key component in achieving strict emission standards. Different components need to be added to meet the working needs of different equipment. Among them, iron oxide is an important substrate. The iron oxide raw material needs to be fully oxidized to be suitable for catalytic production needs. However, in actual use, it still has the following disadvantages:

[0003] 1. In the production of iron oxide substrate for SCR catalyst, the iron oxide raw material is directly placed in the equipment and heated, oxygen is transported into it for oxidation, and then released for cooling after oxidation. During the production process, the raw material needs to be poured out for cooling, which takes a long time;

[0004] 2. In the production of SCR catalyst iron oxide substrate, in order to produce high-purity iron oxide, the substrate is directly placed in the oxidation equipment and heated, and then oxygen is introduced for oxidation. The introduction of oxygen requires a relatively high cost, and the entire process of oxygen transportation will result in a high production cost of the iron oxide substrate. Utility Model Content

[0005] The purpose of the utility model is to provide an SCR catalyst substrate production device. By providing a thermal insulation jacket, a limit plate, a rotating plate, an exhaust pipe and an air supply pipe, the utility model solves the problems of long cooling time and high cost required for direct oxygen oxidation in the production of SCR catalyst iron oxide substrate.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model discloses an SCR catalyst substrate production device, comprising a thermal insulation jacket, a limit plate, a rotating plate, an exhaust pipe and an air supply pipe, wherein a limit plate is provided at one end of the thermal insulation jacket, an exhaust pipe is fixed through the upper part of the limit plate, a rotating column is fixed on the top of the limit plate, a rotating plate is fixed on the top of the rotating column, a material trough is fixed on the end of the limit plate close to the thermal insulation jacket, a conveying shell is fixedly connected to the end of the conveying shell away from the thermal insulation jacket, and the air supply pipe is fixed on the side of the limit plate close to the thermal insulation jacket. During operation, the heat generated by the heating plate therein is kept as warm as possible by the thermal insulation shell, and is provided to the limit plate to limit the position of the material trough extending into the thermal insulation jacket, the thermal insulation jacket and the limit plate are locked by the rotating plate, and the air and oxygen oxidized by the ferrous oxide and iron powder in the thermal insulation jacket are discharged through the exhaust pipe.

[0008] Furthermore, a heating plate is fixed to the inner bottom of the thermal insulation jacket, and a limiting sleeve is fixed to the edge of the limiting plate near the top of the thermal insulation jacket. The thermal insulation jacket heats the material trough and the iron oxide material in the material trough through the heating plate.

[0009] Furthermore, a pulling handle is fixed on the side of the limiting plate away from the thermal insulation jacket, and the pulling handle is arranged below the exhaust pipe. A filter plate is fixed on the edge of the inner wall of the material trough away from the limiting plate. The limiting plate provides a pulling action through the pulling handle, and the oxygen or air entering the thermal insulation jacket is filtered through the filter plate when working.

[0010] Furthermore, a screw is threadedly connected to the rotating plate at a position symmetrical to the rotating column, a rotating block is fixed to the top of the screw, and the screw is inserted into the limit sleeve. After the rotating plate is inserted into the limit sleeve through the screw, the position between the thermal insulation jacket and the limit plate is limited.

[0011] Furthermore, an oxygen concentration detector is provided on one side of the exhaust pipe, and a detection probe is fixed at the output end of the oxygen concentration detector. The detection probe is fixed in the exhaust pipe, and the end of the detection probe away from the exhaust pipe is arranged in the exhaust pipe. The exhaust pipe detects the oxygen concentration in the gas passing therethrough through the oxygen concentration detector and the detection probe.

[0012] Furthermore, the air supply pipe is fixedly connected to an air intake pipe at one end away from the thermal insulation jacket, and the air supply pipe is fixed in the middle of the air intake pipe side. Electric control valves are fixed on the air intake pipe sides on both sides of the air supply pipe. The air supply pipe delivers air or oxygen into the air supply pipe through the air intake pipe, and the air intake pipe controls the on and off of the delivery through the electric control valve.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model solves the problem of a long cooling time in the production of the iron oxide substrate of the SCR catalyst by providing a thermal insulation jacket, a limit plate, a rotating plate and an air pipe. When the air pipe transports oxygen, the reading of the oxygen concentration detector is observed. After the reading of the oxygen concentration detector gradually increases, the electric control valve for transporting oxygen is closed, the heating plate is closed, and the electric control valve close to the air transport is opened. At this time, the air is transported into the transport shell, and then transported into the thermal insulation jacket through the transport shell, and then transported into the material trough, so as to further oxidize the iron oxide powder and cool the iron oxide powder. The time required for cooling the iron oxide substrate is shortened.

[0015] 2. The utility model solves the problem of high cost of directly oxidizing with oxygen in the production of SCR catalyst iron oxide substrate by arranging a thermal insulation jacket, a limit plate, an exhaust pipe and an air supply pipe. When the heating plate in the thermal insulation jacket starts working for half an hour, the electric control valve near the oxygen supply pipeline is opened. At this time, oxygen is transported to the conveying shell, and then transported to the thermal insulation jacket through the conveying shell, and then transported to the material tank after filtering the filter plate, so that the heated material in the material tank is fully oxidized, so that the production of SCR catalyst iron oxide substrate can be achieved by combining oxygen and air, which is more cost-effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a three-dimensional diagram of the assembly structure of an SCR catalyst substrate production device;

[0018] Figure 2 This is a three-dimensional diagram of the structure of the thermal insulation jacket;

[0019] Figure 3 It is a three-dimensional diagram of the limiting plate structure;

[0020] Figure 4 It is a three-dimensional diagram of the rotating plate structure;

[0021] Figure 5 It is a three-dimensional diagram of the exhaust pipe structure;

[0022] Figure 6 This is a three-dimensional diagram of the gas pipeline structure.

[0023] Reference numerals:

[0024] 1. Insulation jacket; 101. Heating plate; 102. Limit sleeve; 103. Conveying shell; 2. Limit plate; 201. Pull handle; 202. Material trough; 203. Filter plate; 3. Rotating plate; 301. Rotating column; 302. Screw; 303. Rotating block; 4. Exhaust pipe; 401. Oxygen concentration detector; 402. Detection probe; 5. Gas pipe; 501. Inlet pipe; 502. Electric control valve. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific embodiment 1

[0027] See also Figure 1-6 The present invention is a production device for an SCR catalyst substrate, comprising a thermal insulation jacket 1, a limiting plate 2, a rotating plate 3, an exhaust pipe 4 and an air supply pipe 5. A limiting plate 2 is provided at one end of the thermal insulation jacket 1. When the thermal insulation jacket 1 is working, the heat loss caused by the direct dissipation of heat generated on the heating plate 101 is reduced. The position of the material trough 202 in the thermal insulation jacket 1 is determined by the limiting plate 2. An exhaust pipe 4 is fixed through the upper part of the limiting plate 2. The air entering the thermal insulation jacket 1 and the excess oxygen after the purified iron oxide are discharged through the exhaust pipe 4. A rotating column 301 is fixed on the top of the limiting plate 2. The rotating plate 3 is rotatably connected to the top of the limiting plate 2 through the rotating column 301. The rotating plate 3 is fixed on the top of the rotating column 301. The threaded rod that limits the position of the limit plate 2 is threadedly connected to it through the rotating plate 3, and a material trough 202 is fixed on the end of the limit plate 2 close to the thermal insulation jacket 1, and the iron oxide material is contained therein through the material trough 202. The end of the thermal insulation jacket 1 away from the limit plate 2 is fixedly connected to the conveying shell 103, and the oxygen or air entering it is conveyed to the thermal insulation jacket 1 through the conveying shell 103. The end of the conveying shell 103 away from the thermal insulation jacket 1 is fixedly connected to the air supply pipe 5, and the oxygen and cooled air for purifying the iron oxide are conveyed to the conveying shell 103 through the air supply pipe 5. A material trough 202 is fixed on the side of the limit plate 2 close to the thermal insulation jacket 1, and the iron oxide material to be purified is contained therein through the material trough 202.

[0028] Specifically, a heating plate 101 is fixed to the inner bottom of the thermal insulation jacket 1, and a limiting sleeve 102 is fixed to the edge of the top of the thermal insulation jacket 1 near the limit plate 2. The thermal insulation jacket 1 heats the material in the material trough 202 through the heating plate 101 and movably connects the screw 302 through the limiting sleeve 102.

[0029] Furthermore, a pulling handle 201 is fixed to the side of the limiting plate 2 away from the thermal insulation jacket 1, and the pulling handle 201 is arranged below the exhaust pipe 4. A filter plate 203 is fixed to the edge of the inner wall of the material trough 202 away from the limiting plate 2. The limiting plate 2 provides a pulling force point for pushing and pulling the material trough 202 into and out of the thermal insulation jacket 1 through the pulling handle 201, and the filter plate 203 prevents the iron oxide material in the material trough 202 from rushing into the conveying shell 103 due to inertia when being pushed into the thermal insulation jacket 1.

[0030] Furthermore, a screw rod 302 is threadedly connected to a position symmetrical to the rotating column 301 in the rotating plate 3, and a rotating block 303 is fixed to the top of the screw rod 302. The screw rod 302 is inserted into the limiting sleeve 102. When the material trough 202 is pushed into place in the thermal insulation jacket 1, the rotating plate 3 is rotated to align the threaded rod therein with the limiting sleeve 102, and the rotating block 303 is rotated to allow the threaded rod to be inserted into the limiting sleeve 102, so that the position between the thermal insulation jacket 1 and the limiting plate 2 is restricted, so that the material trough 202 is stably set in the thermal insulation jacket 1.

[0031] The operation process of this embodiment is as follows: when working, first align the end of the material trough 202 fixed on the limiting plate 2 away from the limiting plate 2 with the end of the thermal insulation jacket 1 away from the conveying shell 103, then evenly pour the iron oxide raw material to be purified into the material trough 202, then hold the pull handle 201 and push the material trough 202 into the thermal insulation jacket 1 until the limiting plate 2 contacts the end of the thermal insulation jacket 1 away from the conveying shell 103. After completion, rotate the rotating plate 3, align the threaded rod therein with the limiting sleeve 102, and rotate the rotating block 303 so that the threaded rod Insert the limiting sleeve 102 to limit the position between the thermal insulation jacket 1 and the limiting plate 2, so that the material tank 202 is stably set in the thermal insulation jacket 1, and then start working. After the heating plate 101 in the thermal insulation jacket 1 starts working for half an hour, open the electric control valve 502 near the oxygen delivery pipeline. At this time, oxygen is delivered to the delivery shell 103, and then delivered to the thermal insulation jacket 1 through the delivery shell 103. After filtering the filter plate 203, it is delivered to the material tank 202, so that the heated material in the material tank 202 is fully oxidized. Specific embodiment 2

[0033] See also Figure 1 、 2 , 3, 5, 6. On the basis of the specific embodiment 1, an oxygen concentration detector 401 is provided on one side of the exhaust pipe 4, and a detection probe 402 is fixed to the output end of the oxygen concentration detector 401. The detection probe 402 is fixed in the exhaust pipe 4, and the end of the detection probe 402 away from the exhaust pipe 4 is arranged in the exhaust pipe 4. When the exhaust pipe 4 is working, the purified iron oxide air and oxygen entering the heat-insulating shell are discharged, and the oxygen concentration of the gas passing through the exhaust pipe 4 is detected by the cooperation of the oxygen concentration detector 401 and the detection probe 402.

[0034] Specifically, one end of the air supply pipe 5 away from the thermal insulation jacket 1 is fixedly connected to the air intake pipe 501, and the air supply pipe 5 is fixed to the middle of the air intake pipe 501. The air intake pipes 501 on both sides of the air supply pipe 5 are fixed with electric control valves 502. The two ends of the air intake pipe 501 are respectively connected to the pipelines for conveying air and oxygen. When working, when the heating plate 101 in the thermal insulation jacket 1 starts working for half an hour, the electric control valve 502 near the oxygen delivery pipeline is opened. At this time, the oxygen is delivered to the delivery shell 103, and then delivered to the thermal insulation jacket 1 through the delivery shell 103, and then the filter plate 203 is used to filter the air. After passing through the filter plate 203, the iron oxide powder is transported to the material tank 202 so that the heated material in the material tank 202 is fully oxidized. At the same time, the reading of the oxygen concentration detector 401 is observed. After the reading of the oxygen concentration detector 401 gradually increases, the electric control valve 502 for transporting oxygen is closed, the heating plate 101 is closed, and the electric control valve 502 close to the air transport is opened. At this time, the air is transported to the transport shell 103, and then transported to the thermal insulation jacket 1 through the transport shell 103, and then transported to the material tank 202, so as to further oxidize the iron oxide powder and cool the iron oxide powder.

[0035] The operating process of this embodiment is as follows: during operation, while the gas pipe 5 delivers oxygen, the reading of the oxygen concentration detector 401 is observed. After the reading of the oxygen concentration detector 401 gradually increases, the electric control valve 502 for delivering oxygen is closed, the heating plate 101 is closed, and the electric control valve 502 near the air delivery is opened. At this time, the air is delivered to the delivery shell 103, and then delivered to the thermal insulation jacket 1 through the delivery shell 103, and then delivered to the material tank 202, so as to further oxidize the iron oxide powder and cool the iron oxide powder.

[0036] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A SCR catalyst substrate production device, comprising a heat-insulating jacket (1), a limiting plate (2), a rotating plate (3), an exhaust pipe (4) and a gas transmission pipe (5), characterized in that: A limiting plate (2) is provided at one end of the thermal insulation jacket (1), an exhaust pipe (4) is fixed through the upper portion of the limiting plate (2), a rotating column (301) is fixed at the top of the limiting plate (2), a rotating plate (3) is fixed at the top end of the rotating column (301), a material trough (202) is fixed at the end of the limiting plate (2) close to the thermal insulation jacket (1), a conveying shell (103) is fixedly connected at the end of the thermal insulation jacket (1) away from the limiting plate (2), an air delivery pipe (5) is fixedly connected at the end of the conveying shell (103) away from the thermal insulation jacket (1), and a material trough (202) is fixed at the side of the limiting plate (2) close to the thermal insulation jacket (1).

2. The SCR catalyst substrate production device according to claim 1, characterized in that: A heating plate (101) is fixed to the inner bottom of the thermal insulation jacket (1), and a limiting sleeve (102) is fixed to the top of the thermal insulation jacket (1) near the edge of the limiting plate (2).

3. The SCR catalyst substrate production device according to claim 1, characterized in that: A pulling handle (201) is fixed to the side of the limiting plate (2) away from the thermal insulation jacket (1), and the pulling handle (201) is arranged below the exhaust pipe (4). A filter plate (203) is fixed to the edge of the inner wall of the material trough (202) away from the limiting plate (2).

4. The SCR catalyst substrate production device according to claim 2, characterized in that: A screw rod (302) is threadedly connected at a position symmetrical to the rotating column (301) in the rotating plate (3), a rotating block (303) is fixed to the top end of the screw rod (302), and the screw rod (302) is inserted into the limiting sleeve (102).

5. The SCR catalyst substrate production device according to claim 1, characterized in that: An oxygen concentration detector (401) is provided on one side of the exhaust pipe (4), a detection probe (402) is fixed to the output end of the oxygen concentration detector (401), the detection probe (402) is fixed through the exhaust pipe (4), and the end of the detection probe (402) away from the exhaust pipe (4) is provided in the exhaust pipe (4).

6. The SCR catalyst substrate production device according to claim 1, characterized in that: One end of the air delivery pipe (5) away from the thermal insulation jacket (1) is fixedly connected to an air intake pipe (501), the air delivery pipe (5) is fixed to the middle of the circumference of the air intake pipe (501), and electric control valves (502) are fixed to the circumference of the air intake pipe (501) on both sides of the air delivery pipe (5).

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