Liquid ammonia alarm spraying exhaust device

Abstract

The utility model provides a liquid ammonia alarm spraying exhaust device, and belongs to the technical field of corn quick freezing. A liquid ammonia alarm spraying exhaust device comprises a spraying table and a spraying chamber, and the top of the spraying table is fixedly connected with an absorption box; and a rotating pipe is arranged in the absorption box. When extracted gas passes through the gas conveying pipe, the gas is injected into water in the absorption box through the rotating pipe and the gas injection pipe, and in the process, the rotating pipe drives the gas injection pipe and the stirring plate to rotate, so that the gas injection pipe injects the gas into each part in the absorption box; according to the ammonia gas absorption device, water in an absorption box can rapidly absorb ammonia gas in gas, the situation that the ammonia gas is injected into the absorption box through one part, and consequently water in all parts in the absorption box cannot be fully mixed with the ammonia gas is prevented, in the process, rotation of a stirring plate extrudes the water through a through hole, flowing of water flow is accelerated, and the ammonia gas absorption effect is improved. Therefore, the absorption efficiency and the absorption quality of the water flow on the ammonia gas are further improved, and the ammonia gas can be recycled.

Description

Technical Field

[0001] The utility model relates to the field of corn quick freezing, in particular to a liquid ammonia alarm spray exhaust device. Background Art

[0002] Corn quick freezing is a food processing technology that can quickly transform fresh corn from a picked state to a frozen state to maintain its freshness and nutritional value. Quick-frozen corn usually uses immature sweet corn as raw material because they have a higher water content and taste more tender and juicy. The following are the basic steps of corn quick freezing: Harvesting: Select mature sweet corn, usually picked at the milky stage, when the sweetness and nutritional value of the corn are at their best. Peeling and silk removal: The corn needs to be peeled and silk removed as soon as possible after picking to prevent the corn from over-ripening and maintain its color and taste. Cleaning: The corn needs to be thoroughly cleaned after peeling and silk removal to remove dust and impurities on the surface. Pretreatment: In order to prevent cell damage during the freezing process, the corn is usually pretreated, such as blanching or steam pre-cooking. This can inactivate the activity of enzymes and reduce nutrient loss during the freezing process. Freezing: The pretreated corn needs to be frozen quickly to maintain its freshness. Quick freezing is usually carried out at a low temperature of -35 to -40 degrees Celsius, which can form a large number of tiny ice crystals in a short time instead of larger ice crystals, thereby reducing damage to the cell structure. Packaging: After freezing, corn can be packaged and stored for easy transportation and sale. The packaging material usually needs to have good oxygen barrier and moisture resistance to extend the shelf life of the corn.

[0003] At present, when corn is quickly frozen by spraying liquid ammonia, the liquid ammonia will evaporate into ammonia gas when it comes into contact with the air. When the ammonia gas formed by the evaporation of the liquid ammonia is ventilated and discharged, the ammonia gas will be wasted. When the ammonia gas is absorbed by water, the ammonia gas will be dissolved in water due to its fast circulation speed, resulting in part of the ammonia gas being discharged into the external environment, affecting environmental safety.

[0004] How to invent a liquid ammonia alarm spray exhaust device to improve these problems has become an urgent problem to be solved by technical personnel in this field. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a liquid ammonia alarm spray exhaust device, which aims to improve the problem that liquid ammonia will evaporate into ammonia gas when it comes into contact with air. When the ammonia gas formed by the evaporation of liquid ammonia is ventilated and discharged, ammonia gas will be wasted. When the ammonia gas is absorbed by water, the ammonia gas will be dissolved in water due to the fast circulation speed of the ammonia gas, resulting in part of the ammonia gas being discharged into the external environment, affecting environmental safety.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a liquid ammonia alarm spray exhaust device, comprising a spray platform and a spray chamber, wherein the top of the spray platform is fixedly connected with an absorption box;

[0008] A rotating tube is provided in the absorption box, the bottom of the rotating tube is fixedly connected to an air injection pipe, the outer wall of the rotating tube is fixedly connected to a stirring plate, and a plurality of through holes are provided on the stirring plate, the inner bottom of the rotating tube is fixedly connected to a rotating rod, the outer wall of the rotating rod is fixedly connected to a cleaning assembly, and an exhaust mechanism is installed on the spray chamber.

[0009] Preferably, the exhaust mechanism includes a vacuum pump installed on the top of the spray chamber, a driving motor is installed on the top of the vacuum pump via a motor frame, the output end of the driving motor is fixedly connected to a rotating shaft, the rotating shaft is located at the top of the vacuum pump and is fixedly connected to a driving wheel, the outer wall of the rotating rod is fixedly connected to a driven wheel, the outer wall of the driving wheel is fitted with a belt, the outer wall of the driven wheel is fitted with the belt, the part of the rotating shaft located in the vacuum pump is fixedly connected to fan blades, the bottom of the vacuum pump is fixedly connected to an exhaust head, the outer wall of the vacuum pump is fixedly connected to an air pipe, and the end of the air pipe away from the vacuum pump is rotatably connected to the top of the rotating pipe.

[0010] Furthermore, a fixed plate is fixedly connected to the top of the spray station, a conveyor belt is installed on the fixed plate, an ammonia spray rack is installed inside the spray room, an ammonia delivery pipe is fixedly connected to the top of the ammonia spray rack, and an ammonia spray head is fixedly connected to the bottom of the ammonia spray rack.

[0011] Furthermore, the ammonia spray head is inclined toward the direction where the air extraction head is located, and the air extraction head is inclined toward the direction where the ammonia spray head is located.

[0012] Preferably, a water inlet pipe is fixedly connected to the bottom of the absorption box, a drain pipe is fixedly connected to the side wall of the absorption box, an exhaust pipe is fixedly connected to the top of the absorption box, an alarm is fixedly connected to the top of the absorption box, and an ammonia detector is fixedly connected to the inner wall of the exhaust pipe.

[0013] Furthermore, the cleaning assembly includes a main bevel gear fixedly connected to the rotating rod, the outer side wall of the main bevel gear is meshed with a slave bevel gear, a reciprocating screw is fixedly connected to one side of the slave bevel gear, the outer side wall of the reciprocating screw is threadedly connected to a cleaning plate, a fixing frame is installed on the reciprocating screw, the fixing frame is fixedly connected to the top of the exhaust pipe, the top of the cleaning plate is slidably connected to the inner top of the fixing frame, the cleaning plate is sleeved on the ammonia detector, and the ammonia detector is electrically connected to the alarm.

[0014] The beneficial effects of the utility model are:

[0015] 1. The liquid ammonia alarm spray exhaust device, through the coordinated use of a rotating pipe, an air injection pipe and a stirring plate, will allow the gas to be injected into the water in the absorption box through the rotating pipe and the air injection pipe when the extracted gas passes through the gas transmission pipe. During this process, the rotating pipe will drive the air injection pipe and the stirring plate to rotate, so that the air injection pipe injects the gas into various parts of the absorption box, so that the water in the absorption box can quickly absorb the ammonia in the gas, and prevent ammonia from being injected into the absorption box through one part, resulting in the water in various parts of the absorption box being unable to fully mix with the ammonia. In this process, the rotation of the stirring plate will squeeze the water through the through hole, accelerate the flow of water, thereby further improving the absorption efficiency and absorption quality of ammonia by the water flow, so that the ammonia can be recovered.

[0016] 2. The liquid ammonia alarm spray exhaust device can effectively clean the ammonia detector by the reciprocating sliding of the cleaning plate on the ammonia detector to prevent the gas that does not contain ammonia from passing through the ammonia detector. Since the gas passes through water, it will contain water vapor. The water vapor will adhere to the ammonia detector, causing a layer of water film to form on the outer surface of the ammonia detector, making it impossible for the ammonia detector to detect the passing gas, affecting the normal operation of the ammonia detector, and ensuring the detection accuracy of the ammonia detector for ammonia.

[0017] 3. The liquid ammonia alarm spray exhaust device reduces the amount of liquid ammonia sprayed from the ammonia spray head and discharged through the feed end of the spray chamber by means of an ammonia spray head inclined toward the exhaust head and an exhaust head inclined toward the ammonia spray head, and the exhaust head can extract the ammonia formed by evaporation more quickly, thereby improving the recovery quality and efficiency of the ammonia. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a liquid ammonia alarm spray exhaust device provided by an embodiment of the utility model;

[0020] Figure 2 It is a three-dimensional partially cutaway structural schematic diagram of a liquid ammonia alarm spray exhaust device provided by the embodiment of the utility model;

[0021] Figure 3 It is a side cutaway structural schematic diagram of a liquid ammonia alarm spray exhaust device provided by an embodiment of the utility model;

[0022] Figure 4 This is a front cutaway structural schematic diagram of a liquid ammonia alarm spray exhaust device provided by an embodiment of the utility model;

[0023] Figure 5 This is a liquid ammonia alarm spray exhaust device provided by the utility model. Figure 4 Enlarged structural diagram at A in the middle.

[0024] In the figure: 1. spray station; 2. fixed plate; 3. conveyor belt; 4. spray room; 5. ammonia pipe; 6. ammonia spray rack; 7. ammonia spray head; 8. vacuum pump; 9. drive motor; 10. rotating shaft; 11. fan blades; 12. vacuum head; 13. driving wheel; 14. belt; 15. driven wheel; 16. air pipe; 17. absorption box; 18. water inlet pipe; 19. drain pipe; 20. rotating rod; 21. rotating pipe; 22. air injection pipe; 23. stirring plate; 24. main bevel gear; 25. slave bevel gear; 26. reciprocating screw; 27. cleaning plate; 28. exhaust pipe; 29. ​​ammonia detector; 30. fixed rack; 31. alarm. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example

[0027] Reference Figure 1-Figure 4 A liquid ammonia alarm spray exhaust device comprises a spray platform 1 and a spray chamber 4, a fixed plate 2 is fixedly connected to the top of the spray platform 1, a conveyor belt 3 is installed on the fixed plate 2, an ammonia spray rack 6 is installed inside the spray chamber 4, an ammonia spray rack 6 is fixedly connected to the top of the ammonia delivery pipe 5, and an ammonia spray head 7 is fixedly connected to the bottom of the ammonia spray rack 6.

[0028] When in use, first connect the ammonia delivery pipe 5 to the liquid ammonia storage device. During quick freezing, open the valve of the liquid ammonia storage device to allow liquid ammonia to enter the ammonia delivery pipe 5, and then enter the ammonia spray rack 6, and be discharged through the ammonia spray head 7. Then, the corn products that need to be quick-frozen are placed on the conveyor belt 3, and the corn products are transported to the spray chamber 4 through the conveyor belt 3. When the corn products pass through the ammonia spray head 7, the ammonia spray head 7 sprays liquid ammonia on the corn products to quickly freeze the corn products.

[0029] Reference Figure 1-Figure 5The exhaust mechanism includes an exhaust cylinder 8 installed on the top of the spray chamber 4, a driving motor 9 is installed on the top of the exhaust cylinder 8 through a motor frame, and a rotating shaft 10 is fixedly connected to the output end of the driving motor 9. The rotating shaft 10 is located at the top of the exhaust cylinder 8 and is fixedly connected to a driving wheel 13. The outer wall of the rotating rod 20 is fixedly connected to a driven wheel 15, and the outer wall of the driving wheel 13 is fitted with a belt 14. The outer wall of the driven wheel 15 is fitted with the belt 14. The part of the rotating shaft 10 located in the exhaust cylinder 8 is fixedly connected with a fan blade 11. The bottom of the exhaust cylinder 8 is fixedly connected with an exhaust head 12, the ammonia spray head 7 is inclined toward the direction of the exhaust head 12, and the exhaust head 12 is inclined toward the direction of the ammonia spray head 7, and the outer wall of the exhaust cylinder 8 is fixedly connected with an air supply pipe 16.

[0030] When in use, during the process of quick freezing the corn, the drive motor 9 is started, so that the rotating shaft 10 drives the fan blades 11 to rotate, so that the fan blades 11 draw the gas inside the spray chamber 4 into the vacuum cylinder 8 through the vacuum head 12, and the gas entering the vacuum cylinder 8 will be discharged through the gas pipe 16, and the ammonia generated by the spray chamber 4 due to heat absorption will be collected and discharged. In this process, the rotation of the rotating shaft 10 will also drive the driven wheel 15 to rotate through the driving wheel 13 and the belt 14, thereby causing the rotating rod 20 to rotate.

[0031] Reference Figure 1-Figure 5 , an absorption box 17 is fixedly connected to the top of the spray station 1; a rotating tube 21 is arranged in the absorption box 17, one end of the gas supply pipe 16 away from the vacuum cylinder 8 is rotatably connected to the top of the rotating tube 21, a gas injection pipe 22 is fixedly connected to the bottom of the rotating tube 21, a stirring plate 23 is fixedly connected to the outer wall of the rotating tube 21, and a plurality of through holes are provided on the stirring plate 23, a rotating rod 20 is fixedly connected to the inner bottom of the rotating tube 21, a cleaning assembly is fixedly connected to the outer wall of the rotating rod 20, an exhaust mechanism is installed on the spray chamber 4, a water inlet pipe 18 is fixedly connected to the bottom of the absorption box 17, a drain pipe 19 is fixedly connected to the side wall of the absorption box 17, an exhaust pipe 28 is fixedly connected to the top of the absorption box 17, an alarm 31 is fixedly connected to the top of the absorption box 17, and an ammonia detector 29 is fixedly connected to the inner wall of the exhaust pipe 28.

[0032] When in use, first connect the water inlet pipe 18 to the external water source, and allow the water inlet pipe 18 to continuously flow into the absorption box 17 until the water volume in the absorption box 17 reaches the top of the rotating pipe 21, and then open the drain pipe 19 to make the water volume of the water inlet pipe 18 equal to the water volume of the drain pipe 19, and the gas inside the spray chamber 4 discharged through the gas pipe 16 will enter the rotating pipe 21, and then be injected into the bottom of the absorption box 17 through the gas injection pipe 22. In this process, the rotating pipe 21 will drive the gas injection pipe 22 and the stirring plate 23 to rotate, so that the gas injection pipe 2 2. Injecting gas into various parts of the absorption box 17 so that the water in the absorption box 17 can quickly absorb ammonia in the gas, preventing ammonia from being injected into the absorption box 17 through one part, resulting in the water in various parts of the absorption box 17 being unable to fully mix with ammonia, causing the gas discharged through the exhaust pipe 28 to contain ammonia and pollute the environment. In this process, the rotation of the stirring plate 23 will squeeze the water through the through hole, speeding up the flow of water, thereby further improving the absorption efficiency and absorption quality of ammonia by the water flow, so that the ammonia can be recovered;

[0033] The gas discharged through the exhaust pipe 28 will pass through the ammonia detector 29. When the ammonia detector 29 detects that the discharged gas contains ammonia, the alarm 31 will be activated to generate an audible and visual alarm to prompt the personnel, so that the ammonia pipe 5 stops the transportation of liquid ammonia and the conveyor belt 3 stops the transportation of corn products. Then the water inlet pipe 18 is connected to the external collection box to completely discharge the ammonia water formed by absorbing ammonia in the absorption box 17. Then the water inlet pipe 18 is connected to the external water source to replace the water in the absorption box 17 with clean water.

[0034] Reference Figure 5 The cleaning assembly includes a main bevel gear 24 fixedly connected to the rotating rod 20, the outer wall of the main bevel gear 24 is meshed with a slave bevel gear 25, a reciprocating screw rod 26 is fixedly connected to one side of the slave bevel gear 25, the outer wall of the reciprocating screw rod 26 is threadedly connected to a cleaning plate 27, a fixing frame 30 is installed on the reciprocating screw rod 26, the fixing frame 30 is fixedly connected to the top of the exhaust pipe 28, the top of the cleaning plate 27 is slidably connected to the inner top of the fixing frame 30, the cleaning plate 27 is sleeved on the ammonia detector 29, and the ammonia detector 29 is electrically connected to the alarm 31.

[0035] The rotation of the rotating rod 20 will drive the reciprocating screw 26 to rotate through the main bevel gear 24 and the slave bevel gear 25, so that the cleaning plate 27 slides back and forth under the action of the fixing frame 30 to clean the outer surface of the ammonia detector 29;

[0036] This prevents gas that does not contain ammonia from passing through the ammonia detector 29. Since the gas passes through water, it will contain water vapor. The water vapor will adhere to the ammonia detector 29, causing a layer of water film to form on the outer surface of the ammonia detector 29, making it impossible for the ammonia detector 29 to detect the passing gas, thereby affecting the normal operation of the ammonia detector 29 and ensuring the detection accuracy of ammonia by the ammonia detector 29.

[0037] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A liquid ammonia alarm spray exhaust device, characterized in that: It comprises a spraying platform (1) and a spraying room (4), wherein the top of the spraying platform (1) is fixedly connected to an absorption box (17); A rotating tube (21) is arranged in the absorption box (17); the bottom of the rotating tube (21) is fixedly connected to an air injection tube (22); the outer wall of the rotating tube (21) is fixedly connected to a stirring plate (23), and a plurality of through holes are provided on the stirring plate (23); the inner bottom of the rotating tube (21) is fixedly connected to a rotating rod (20); the outer wall of the rotating rod (20) is fixedly connected to a cleaning assembly; and an exhaust mechanism is installed on the spray chamber (4).

2. A liquid ammonia alarm spray exhaust device according to claim 1, characterized in that: The exhaust mechanism comprises an exhaust cylinder (8) installed on the top of the spray chamber (4), a driving motor (9) is installed on the top of the exhaust cylinder (8) through a motor frame, the output end of the driving motor (9) is fixedly connected to a rotating shaft (10), the rotating shaft (10) is located at the top of the exhaust cylinder (8) and is fixedly connected to a driving wheel (13), the outer wall of the rotating rod (20) is fixedly connected to a driven wheel (15), the outer wall of the driving wheel (13) is fitted with a belt (14), the outer wall of the driven wheel (15) is fitted with the belt (14), the part of the rotating shaft (10) located in the exhaust cylinder (8) is fixedly connected to a fan blade (11), the bottom of the exhaust cylinder (8) is fixedly connected to an exhaust head (12), the outer wall of the exhaust cylinder (8) is fixedly connected to an air supply pipe (16), and the end of the air supply pipe (16) away from the exhaust cylinder (8) is rotatably connected to the top of the rotating pipe (21).

3. A liquid ammonia alarm spray exhaust device according to claim 2, characterized in that: The top of the spray platform (1) is fixedly connected to a fixed plate (2), a conveyor belt (3) is installed on the fixed plate (2), an ammonia spray rack (6) is installed inside the spray chamber (4), the top of the ammonia spray rack (6) is fixedly connected to an ammonia delivery pipe (5), and the bottom of the ammonia spray rack (6) is fixedly connected to an ammonia spray head (7).

4. A liquid ammonia alarm spray exhaust device according to claim 3, characterized in that: The ammonia spray head (7) is inclined toward the direction where the air extraction head (12) is located, while the air extraction head (12) is inclined toward the direction where the ammonia spray head (7) is located.

5. A liquid ammonia alarm spray exhaust device according to claim 1, characterized in that: The bottom of the absorption box (17) is fixedly connected to a water inlet pipe (18), the side wall of the absorption box (17) is fixedly connected to a drain pipe (19), the top of the absorption box (17) is fixedly connected to an exhaust pipe (28), the top of the absorption box (17) is fixedly connected to an alarm (31), and the inner wall of the exhaust pipe (28) is fixedly connected to an ammonia detector (29).

6. A liquid ammonia alarm spray exhaust device according to claim 5, characterized in that: The cleaning assembly comprises a main bevel gear (24) fixedly connected to a rotating rod (20), an outer side wall of the main bevel gear (24) meshing with a slave bevel gear (25), a reciprocating screw (26) fixedly connected to one side of the slave bevel gear (25), an outer side wall of the reciprocating screw (26) being threadedly connected to a cleaning plate (27), a fixing frame (30) being mounted on the reciprocating screw (26), the fixing frame (30) being fixedly connected to the top of an exhaust pipe (28), the top of the cleaning plate (27) being slidably connected to the inner top of the fixing frame (30), the cleaning plate (27) being sleeved on an ammonia detector (29), and the ammonia detector (29) being electrically connected to an alarm (31).

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