Raw material pretreatment device for preparing synthetic ammonia

Abstract

The raw material pretreatment device comprises a filter box, an air inlet pipe and a connecting pipe, the air inlet pipe and the connecting pipe are installed at the two ends of the filter box respectively, a supporting piece is arranged in the filter box, a rotating rod penetrates through the supporting piece, a filter screen penetrates through the outer side of the rotating rod, and a turnover mechanism enabling the filter screen to turn over is installed on the filter box. According to the raw material pretreatment device for synthetic ammonia preparation, a middle rod is connected with a filter screen, the middle rod is in threaded connection with a rotating rod, the rotating rod is fixed to a chain assembly and a gear, the chain assembly drives to enable the gear to be meshed with a tooth block, the tooth block enables the gear and the filter screen to rotate by 180 degrees, and then the position of the filter screen is changed; when the filter screen rotates, the scraping rod scrapes foreign matters adhered to the outer side of the filter screen, and the scraped and dropped foreign matters are located at the right side position in the filter box and do not influence normal flow of gas at the left side.

Description

Technical Field

[0001] The invention relates to the technical field of synthetic ammonia preparation, and in particular to a raw material pretreatment device for synthetic ammonia preparation. Background Art

[0002] Synthetic ammonia refers to ammonia directly synthesized from nitrogen and hydrogen under high temperature, high pressure and in the presence of a catalyst. It is a basic inorganic chemical process. Nitrogen mainly comes from the air, while hydrogen can be produced by the reaction of coal or coke with water vapor at high temperature. Ammonia is the main raw material for the fertilizer industry and even organic chemical industry. When using external air as a raw material for ammonia production, it needs to be pretreated first to ensure that the solid substances in the air are filtered and the air is purified to complete the pre-preparation of ammonia production.

[0003] For example, in a synthetic ammonia raw material pretreatment device with publication number CN219355731U, a water pipe is installed on the left side of the air pump, a filter box is installed at the lower end of the water pipe, the filter box includes an outer shell, a water storage bin, an inner shell, a filter element and a cone tube, a water storage bin is provided inside the outer shell, an inner shell is installed inside the water storage bin, a cone tube is provided in the middle of the lower end of the outer shell, and a filter element is provided inside the inner shell.

[0004] The above-mentioned synthetic ammonia raw material pretreatment device has a fixed filter element installed, and foreign matter in the gas is blocked by the filter element. When the raw material pretreatment device is used for a long time and too much foreign matter is accumulated on the filter element, it will affect the normal flow of the gas, and further affect the raw material pretreatment efficiency. Therefore, the filter element needs to be replaced regularly, and the filter element is fixed to the raw material pretreatment device. When replacing the filter element, the raw material pretreatment device as a whole needs to be replaced, which consumes a lot of funds. Summary of the invention

[0005] The object of the present invention is to provide a raw material pretreatment device for the preparation of synthetic ammonia, so as to solve the problem raised in the above-mentioned background technology that the filter element and the raw material pretreatment device in the current market are fixed, and when the filter element is replaced, the raw material pretreatment device as a whole needs to be replaced, which requires a lot of funds.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a raw material pretreatment device for preparing synthetic ammonia, comprising a filter box, an air inlet pipe and a connecting pipe, the air inlet pipe and the connecting pipe are respectively installed at both ends of the filter box, a support member is provided inside the filter box, a rotating rod passes through the inside of the support member, a filter screen passes through the outside of the rotating rod, and a flipping mechanism for flipping the filter screen is installed on the filter box.

[0007] Preferably, a bracket is installed at the bottom end of the filter box, the bracket is placed on the ground, a motor is installed on the bracket, and the output end of the motor is fixed to one of the shafts of the chain assembly.

[0008] Preferably, a through hole is provided on the filter box, the shape of the filter box is the same as the shape of the through hole, and the shell is fixed to the side of the filter box by screws.

[0009] Preferably, a treatment tank is placed on the side of the filter box, a connecting pipe is installed between the treatment tank and the filter box, a pump body is installed on the connecting pipe, an air pump is installed on the air inlet pipe, and an air outlet pipe is installed on the top of the treatment tank;

[0010] The bottom of the connecting pipe is inserted into the bottom of the processing tank, and the interior of the processing tank is filled with purified water.

[0011] Preferably, each group of support members is composed of two spliced ​​support plates, the support plates are arranged in a "T"-shaped structure, and a rubber block is installed between the opposite support plates.

[0012] Preferably, a fixing plate is installed on the inner side of the support plate, and the inner side of the fixing plate is in contact with the outer side of the filter screen;

[0013] The filter screen is a hollow spherical structure.

[0014] Preferably, the flipping mechanism includes a gear, a rotating rod and a tooth block. The rotating rod on one side is equipped with a gear, and the rotating rod on the other side is installed with a chain assembly. The gear is located on the outside of the filter box, the rotating rod passes through the inside of the through hole, and a tooth block is installed on the filter box, and the tooth block and the gear are meshed with each other.

[0015] Preferably, adjacent support members fit together, the support members fit together with the through holes, and the filter screen rotates at an angle of 180 degrees.

[0016] Preferably, an intermediate rod is threadedly connected between the rotating rods on both sides, and the intermediate rod is penetrated and fixed to the filter screen.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The present invention is provided with an intermediate rod, a rotating rod, a gear and a tooth block. The intermediate rod is connected to the filter screen, the intermediate rod is threadedly connected to the rotating rod, the rotating rod is fixed to the chain assembly and the gear, the chain assembly drives the gear and the tooth block to mesh, the tooth block causes the gear and the filter screen to rotate 180 degrees, thereby changing the position of the filter screen, thereby enabling the filter screen to be fully filtered all around, greatly improving the utilization rate of parts.

[0019] 2. The present invention is provided with a scraper rod and a fixed plate. The scraper rod is in contact with the filter screen. When the filter screen rotates, the scraper rod and the filter screen can scrape the foreign matter adhered to the outside of the filter screen. The foreign matter scraped off is located on the right side of the filter box and will not affect the normal flow of gas on the left side. Alternatively, the foreign matter dropped can be collected by external objects during scraping.

[0020] 3. The through hole can be blocked by the setting of the support plate to prevent gas from leaking out of the through hole. The rubber block connects the side support plate. When the rubber block rotates to the bottom and top positions inside the filter box, since the rubber block itself is made of soft material, the rubber block can pass smoothly when it rotates to the arc position and will not affect the normal transmission of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the main cross-sectional structure of the filter box of the present invention;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the support plate of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the rubber block of the present invention;

[0026] Figure 6 This is a schematic diagram of the main cross-sectional structure of the treatment tank of the present invention;

[0027] Figure 7 It is a top view schematic diagram of the rotating rod of the present invention.

[0028] In the figure: 1. filter box; 2. connecting pipe; 3. bracket; 4. motor; 5. chain assembly; 6. shell; 7. air inlet pipe; 8. air pump; 9. pump body; 10. air outlet pipe; 11. treatment tank; 12. through hole; 13. gear block; 14. gear; 15. fixing plate; 16. supporting plate; 17. filter screen; 18. rubber block; 19. rotating rod; 20. purified water; 21. scraper rod; 22. middle rod. DETAILED DESCRIPTION

[0029] The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 7 , the present invention provides a technical solution:

[0031] A raw material pretreatment device for preparing synthetic ammonia comprises a filter box 1, an air inlet pipe 7 and a connecting pipe 2, wherein the air inlet pipe 7 and the connecting pipe 2 are respectively installed at both ends of the filter box 1, wherein a support is provided inside the filter box 1, a rotating rod 19 is passed through inside the support, a filter screen 17 is passed through the outside of the rotating rod 19, and a flip mechanism for flipping the filter screen 17 is installed on the filter box 1. A treatment tank 11 is placed on the side of the filter box 1, a connecting pipe 2 is installed between the treatment tank 11 and the filter box 1, a pump body 9 is installed on the connecting pipe 2, an air pump 8 is installed on the air inlet pipe 7, and an air outlet pipe 10 is installed on the top of the treatment tank 11; the bottom of the connecting pipe 2 is inserted into the bottom of the treatment tank 11, and the treatment tank 11 is filled with purified water 20.

[0032] The staff compresses the external air through the air pump 8 and introduces it into the filter box 1, filters the solid impurities in the air through multiple groups of filter screens 17, and then starts the pump body 9. The pump body 9 introduces the preliminarily filtered air into the treatment tank 11 through the connecting pipe 2. Since the treatment tank 11 is filled with purified water 20 and the lower end of the connecting pipe 2 is located at the bottom of the treatment tank 11, the air is discharged from the purified water 20. Compared with the effect of continuous spraying of the washing tower, the waste of water resources is reduced, and the air is purified at the same time.

[0033] A bracket 3 is installed at the bottom of the filter box 1, and the bracket 3 is placed on the ground. A motor 4 is installed on the bracket 3, and the output end of the motor 4 is fixed to one of the shafts of the chain assembly 5. A through hole 12 is opened on the filter box 1, and the shape of the filter box 1 is the same as the shape of the through hole 12. The shell 6 is fixed to the side of the filter box 1 with screws.

[0034] When too many impurities accumulate on the filter 17 after purification for a period of time, the motor 4 is started, and the motor 4 drives the chain assembly 5 to run. The chain assembly 5 drives the rotating rod 19 to move synchronously. The movement of the rotating rod 19 drives the middle rod 22 and the filter 17 to move synchronously. The filter 17 is driven inside the filter box 1, so that the adhered filter 17 moves to other positions of the filter box 1, and the other filters 17 move to the left position to filter the air.

[0035] Each group of support members is composed of two spliced ​​support plates 16 . The support plates 16 are arranged in a “T”-shaped structure, and a rubber block 18 is installed between the opposite support plates 16 .

[0036] Adjacent support plates 16 are next to each other, and support plates 16 cover the through holes 12. Support plates 16 can seal the interior of the filter box 1 to prevent gas leakage from the through holes 12. When the filter screen 17 rotates to the bottom and top positions of the filter box 1, since the rubber block 18 is soft, it can pass smoothly when passing through the bottom and top positions of the filter box 1, and will not affect the normal transmission of the filter screen 17.

[0037] The inner side of the support plate 16 is installed with a fixing plate 15 , the inner side of the fixing plate 15 is fitted with the outer side of the filter screen 17 , and the lower end of the fixing plate 15 is installed with a scraper rod 21 ; the filter screen 17 is a hollow spherical structure, and the scraper rod 21 is fitted with the filter screen 17 .

[0038] When the filter 17 rotates during the transmission process, the filter 17 rotates relative to the scraper rod 21. When foreign matter adhered to the filter 17 passes through the scraper rod 21, the scraper rod 21 scrapes the foreign matter adhered to the filter 17 to reduce the amount of foreign matter adhered to the filter 17 without affecting the normal flow of gas. During the scraping, the shell 6 can be disassembled and the fallen foreign matter can be collected by external objects to reduce the accumulation of foreign matter inside the filter box 1.

[0039] The flip mechanism includes a gear 14, a rotating rod 19 and a tooth block 13. The rotating rod 19 on one side is installed with the gear 14, and the rotating rod 19 on the other side is installed with the chain assembly 5. The gear 14 is located on the outside of the filter box 1, and the rotating rod 19 passes through the inside of the through hole 12. The tooth block 13 is installed on the filter box 1, and the tooth block 13 and the gear 14 are meshed with each other.

[0040] The movement of the filter 17 drives the intermediate rod 22 and the gear 14 to move synchronously. When the gear 14 moves to engage with the tooth block 13, the tooth block 13 acts on the gear 14, causing the gear 14 to rotate during the movement, thereby allowing different sides of the filter 17 to filter foreign matter and fully utilize the filter 17.

[0041] Adjacent support members fit together, the support members fit together with the through holes 12, and the filter screen 17 rotates at an angle of 180 degrees.

[0042] An intermediate rod 22 is threadedly connected between the rotating rods 19 on both sides, and the intermediate rod 22 penetrates and is fixed to the filter screen 17 .

[0043] When the filter 17 needs to be replaced after being used for a long time, the chain assembly 5 is fixed with one hand and the gear 14 is rotated with the other hand. The rotation of the gear 14 drives the rotating rod 19 on one side to rotate, and relative rotation occurs between the rotating rod 19 and the middle rod 22. During the rotation of the rotating rod 19, it is gradually separated from the middle rod 22. Then, the support plate 16, the rubber block 18, the fixed plate 15 and the filter 17 are disassembled as a whole, the filter 17 is replaced, and the new filter 17 is installed. Then, the fixed plate 15, the support plate 16 and the rubber block 18 are put on the filter 17 and fixed, and then the whole is installed to realize the replacement of the filter 17 without replacing the overall pretreatment device.

[0044] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A raw material pretreatment device for preparing synthetic ammonia, comprising a filter box (1), an air intake pipe (7) and a connecting pipe (2), wherein the air intake pipe (7) and the connecting pipe (2) are respectively installed at both ends of the filter box (1), characterized in that: The filter box (1) has a support member inside, a rotating rod (19) passes through the support member, a filter screen (17) passes through the outside of the rotating rod (19), and a flip mechanism for flipping the filter screen (17) is installed on the filter box (1).

2. A raw material pretreatment device for preparing synthetic ammonia according to claim 1, characterized in that: A bracket (3) is installed at the bottom end of the filter box (1), the bracket (3) is placed on the ground, a motor (4) is installed on the bracket (3), and the output end of the motor (4) is fixed to one of the shafts of the chain assembly (5).

3. A raw material pretreatment device for preparing synthetic ammonia according to claim 1, characterized in that: The filter box (1) is provided with a through hole (12), the shape of the filter box (1) is the same as the shape of the through hole (12), and a housing (6) is fixed to the side of the filter box (1) by screws.

4. A raw material pretreatment device for preparing synthetic ammonia according to claim 1, characterized in that: A treatment tank (11) is placed on the side of the filter box (1), a connecting pipe (2) is installed between the treatment tank (11) and the filter box (1), a pump body (9) is installed on the connecting pipe (2), an air pump (8) is installed on the air inlet pipe (7), and an air outlet pipe (10) is installed on the top of the treatment tank (11); The bottom of the connecting pipe (2) is inserted into the bottom of the processing tank (11), and the interior of the processing tank (11) is filled with purified water (20).

5. A raw material pretreatment device for preparing synthetic ammonia according to claim 1, characterized in that: Each group of support members is composed of two spliced ​​support plates (16), the support plates (16) are arranged in a "T"-shaped structure, and a rubber block (18) is installed between the opposing support plates (16).

6. A raw material pretreatment device for preparing synthetic ammonia according to claim 5, characterized in that: A fixing plate (15) is installed on the inner side of the support plate (16), the inner side of the fixing plate (15) is in contact with the outer side of the filter screen (17), and a scraper rod (21) is installed on the lower end of the fixing plate (15); The filter screen (17) is a hollow spherical structure, and the scraper rod (21) is fitted with the filter screen (17).

7. A raw material pretreatment device for preparing synthetic ammonia according to claim 1, characterized in that: The turning mechanism comprises a gear (14), a rotating rod (19) and a tooth block (13); the rotating rod (19) on one side is equipped with the gear (14); the rotating rod (19) on the other side is installed with the chain assembly (5); the gear (14) is located outside the filter box (1); the rotating rod (19) passes through the inside of the through hole (12); the filter box (1) is equipped with a tooth block (13); the tooth block (13) and the gear (14) are meshed with each other.

8. A raw material pretreatment device for preparing synthetic ammonia according to claim 1, characterized in that: Adjacent support members are fitted to each other, the support members are fitted to the through holes (12), and the filter screen (17) has a rotation angle of 180 degrees.

9. A raw material pretreatment device for preparing synthetic ammonia according to claim 1, characterized in that: An intermediate rod (22) is threadedly connected between the rotating rods (19) on both sides, and the intermediate rod (22) is penetrated and fixed to the filter screen (17).

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