Ammonia synthesis catalyst catalysis device

Abstract

The utility model relates to the technical field of ammonia synthesis, in particular to an ammonia synthesis catalyst catalyzing device, which comprises a reaction tank and a rotating shaft, an annular plate is welded on the lower portion of the outer surface of the reaction tank, the reaction tank comprises an inner casing and an outer casing, and an equipment cavity is formed between the inner casing and the outer casing. Electric heating pipes distributed at equal intervals are arranged on the outer surface of the inner shell and located in the equipment cavity, a spiral pipe is arranged on the lower portion of the inner wall of the reaction tank, an air outlet is formed in the spiral pipe, an air inlet pipe is installed at the rear end of the reaction tank in an embedded mode, and the air inlet pipe is connected with the spiral pipe; the rotating shaft is rotationally mounted on the inner wall of the upper end of the reaction tank, stirring rods and spiral blades which are distributed in an array manner are mounted on the rotating shaft, and the spiral blades are positioned below the stirring rods. The ammonia synthesis catalyst stirring device has the advantages that the catalyst can be turned and stirred, so that the catalyst can be fully contacted and reacted with gas, and the preparation efficiency of the ammonia synthesis catalyst can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ammonia synthesis, in particular to an ammonia synthesis catalyst catalytic device. Background Art

[0002] Ammonia synthesis catalyst is a special type of catalyst used in high-pressure and high-temperature ammonia synthesis reactions. It is mainly composed of transition metal elements such as iron (Fe), molybdenum (Mo), nickel (Ni) and co-catalysts such as aluminum and silicon. These catalysts can accelerate the synthesis reaction of ammonia under high temperature and high pressure conditions.

[0003] The production of ammonia synthesis catalyst requires the use of a catalytic device. The catalyst is added into a reaction tank, and then ammonia is added into the tank to react with the catalyst under high temperature and high pressure. The catalyst is accumulated in the tank and cannot fully contact with the gas, which will affect the preparation efficiency of the ammonia synthesis catalyst. Utility Model Content

[0004] The utility model aims to provide an ammonia synthesis catalyst catalytic device, which has the advantages of being able to turn over and stir the catalyst so that it can fully contact and react with the gas, thereby improving the preparation efficiency of the ammonia synthesis catalyst and solving the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ammonia synthesis catalyst catalytic device, comprising a reaction tank and a rotating shaft, a ring plate is welded at the lower position of the outer surface of the reaction tank, the reaction tank comprises an inner shell and an outer shell, an equipment cavity is formed between the inner shell and the outer shell, the outer surface of the inner shell is provided with equidistantly distributed electric heating tubes, the electric heating tubes are located in the equipment cavity, a spiral tube is provided at the lower position of the inner wall of the reaction tank, an air outlet is opened on the spiral tube, an air inlet pipe is embedded in the rear end of the reaction tank, the air inlet pipe is connected to the spiral tube, the rotating shaft is rotatably installed on the upper inner wall of the reaction tank, a stirring rod and spiral blades distributed in an array are installed on the rotating shaft, and the spiral blades are located below the stirring rod.

[0006] When using the ammonia synthesis catalyst catalytic device of the utility model,

[0007] The catalyst is added into the reaction tank through the feed pipe, and then the threaded cover is installed to close the feed pipe. The added catalyst can be heated by the operation of the electric heating tube, and ammonia is supplied into the reaction tank through the air inlet pipe. The ammonia enters the spiral tube and can be discharged from the air outlet into the lower position of the reaction tank. The ammonia can directly contact with the catalyst. At the same time, the rotating shaft is rotated by the driving device. Under the action of the spiral blade, the catalyst in the lower position of the reaction tank can be transported upward, thereby turning the catalyst. The catalyst can be stirred by the stirring rod. The cooperation of the two allows the gas to fully contact and react with the catalyst. After the catalytic reaction of the ammonia synthesis catalyst is completed, it is discharged through the discharge pipe.

[0008] Preferably, a supporting leg is installed at the lower end of the annular plate, and there are four supporting legs in total, and the four supporting legs are distributed in an array with respect to the annular plate.

[0009] Preferably, a discharge pipe connected to the reaction tank is provided at the lower end of the reaction tank, and a valve is provided on the discharge pipe.

[0010] Preferably, a feed pipe is provided on one side of the upper end surface of the reaction tank, and a threaded cover is threadedly installed on the feed pipe.

[0011] Preferably, a driving device is installed at the upper end of the reaction tank, and the main shaft of the driving device is connected to the axis of the rotating shaft.

[0012] Compared with the prior art, the utility model has the following beneficial effects: when the catalyst catalyzes the reaction, ammonia is supplied into the spiral tube in the reaction tank through the air inlet pipe, and the ammonia can be discharged from the air outlet into the lower position of the reaction tank, where the ammonia can directly contact the catalyst. At the same time, the driving device is used to rotate the rotating shaft, and the catalyst in the lower position of the reaction tank can be transported upward under the action of the spiral blades, thereby turning the catalyst over, and the catalyst can be stirred by the stirring rod. By turning and stirring the catalyst, it can fully contact and react with the gas, thereby improving the preparation efficiency of the ammonia synthesis catalyst. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front view structural schematic diagram of the utility model;

[0014] Figure 2 It is a rear view structural schematic diagram of the utility model;

[0015] Figure 3 It is a cross-sectional structural schematic diagram of the utility model.

[0016] The reference numerals and names in the figures are as follows:

[0017] 101. reaction tank; 102. feed pipe; 103. annular plate; 104. support leg; 105. inner shell; 106. outer shell; 107. electric heating tube; 108. equipment cavity; 109. discharge pipe; 201. driving device; 202. rotating shaft; 203. stirring rod; 204. spiral blade; 301. air inlet pipe; 302. spiral tube; 303. air outlet. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example

[0020] See also Figures 1 to 3 The utility model provides an embodiment: an ammonia synthesis catalyst catalytic device, comprising:

[0021] A reaction tank 101 and a rotating shaft 202, wherein an annular plate 103 is welded at a lower position of the outer surface of the reaction tank 101, the reaction tank 101 comprises an inner shell 105 and an outer shell 106, an equipment cavity 108 is formed between the inner shell 105 and the outer shell 106, the outer surface of the inner shell 105 is provided with equidistantly distributed electric heating tubes 107, the electric heating tubes 107 are located in the equipment cavity 108, a spiral tube 302 is provided at a lower position of the inner wall of the reaction tank 101, an air outlet 303 is opened on the spiral tube 302, an air inlet pipe 301 is embedded and installed at the rear end of the reaction tank 101, the air inlet pipe 301 is connected to the spiral tube 302, the rotating shaft 202 is rotatably installed on the inner wall of the upper end of the reaction tank 101, and a stirring rod 203 and a spiral blade 204 distributed in an array are installed on the rotating shaft 202, and the spiral blade 204 is located below the stirring rod 203.

[0022] In this embodiment, the catalyst is added into the reaction tank 101 through the feed pipe 102, and then the threaded cover is installed to close the feed pipe 102. The added catalyst can be heated by the operation of the electric heating tube 107, and ammonia is supplied into the reaction tank 101 through the air inlet pipe 301. The ammonia enters the spiral tube 302, and the ammonia can be discharged from the air outlet 303 into the lower position of the reaction tank 101, and the ammonia can directly contact with the catalyst. At the same time, the driving device 201 is used to rotate the rotating shaft 202, and the catalyst in the lower position of the reaction tank 101 can be transported upward under the action of the spiral blade 204, so that the catalyst is turned over, and the catalyst can be stirred by the stirring rod 203. The cooperation of the two allows the gas to fully contact and react with the catalyst. After the catalytic reaction of the ammonia synthesis catalyst is completed, it is discharged through the discharge pipe 109.

[0023] Furthermore,

[0024] A support leg 104 is installed at the lower end of the annular plate 103. There are four support legs 104 in total, and the four support legs 104 are distributed in an array with respect to the annular plate 103. The support legs 104 can support the utility model.

[0025] Furthermore,

[0026] The lower end of the reaction tank 101 is provided with a discharge pipe 109 which is in communication with the reaction tank 101 , and a valve is provided on the discharge pipe 109 . The discharge pipe 109 is provided to discharge the ammonia synthesis catalyst in the reaction tank 101 .

[0027] Furthermore,

[0028] A feed pipe 102 is disposed on one side of the upper end surface of the reaction tank 101, and a threaded cover is threadedly mounted on the feed pipe 102. Catalyst can be added into the reaction tank 101 through the feed pipe 102.

[0029] Furthermore,

[0030] A driving device 201 is installed at the upper end of the reaction tank 101, and the main shaft of the driving device 201 is connected to the axis of the rotating shaft 202. The driving device 201 can rotate the rotating shaft 202.

[0031] The electric heating tube 107 and the driving device 201 in the utility model are well-known devices, and their working principles and circuit connections are well known to technicians in this field. They are all conventional means or common knowledge and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An ammonia synthesis catalyst catalytic device, comprising a reaction tank (101) and a rotating shaft (202), characterized in that: An annular plate (103) is welded at a lower position of the outer surface of the reaction tank (101). The reaction tank (101) comprises an inner shell (105) and an outer shell (106). An equipment cavity (108) is formed between the inner shell (105) and the outer shell (106). The outer surface of the inner shell (105) is provided with equidistantly distributed electric heating tubes (107). The electric heating tubes (107) are located in the equipment cavity (108). The inner wall of the reaction tank (101) is provided at a lower position. The spiral tube (302) is provided with an air outlet (303). The rear end of the reaction tank (101) is embedded with an air inlet pipe (301), and the air inlet pipe (301) is connected to the spiral tube (302). The rotating shaft (202) is rotatably mounted on the inner wall of the upper end of the reaction tank (101). The rotating shaft (202) is provided with stirring rods (203) and spiral blades (204) distributed in an array, and the spiral blades (204) are located below the stirring rods (203).

2. The ammonia synthesis catalyst catalytic device according to claim 1, characterized in that: A supporting leg (104) is installed at the lower end of the annular plate (103), and there are four supporting legs (104) in total, and the four supporting legs (104) are distributed in an array with respect to the annular plate (103).

3. The ammonia synthesis catalyst catalytic device according to claim 1, characterized in that: The lower end of the reaction tank (101) is provided with a discharge pipe (109) which is in communication with the reaction tank (101), and a valve is provided on the discharge pipe (109).

4. The ammonia synthesis catalyst catalytic device according to claim 1, characterized in that: A feed pipe (102) is provided on one side of the upper end surface of the reaction tank (101), and a threaded cover is threadedly mounted on the feed pipe (102).

5. The ammonia synthesis catalyst catalytic device according to claim 1, characterized in that: A driving device (201) is installed at the upper end of the reaction tank (101), and the main shaft of the driving device (201) is connected to the axis of the rotating shaft (202).

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